Under the background of New Agricultural Sciences, rural revitalization, and agricultural modernization, agriculture-related courses are expected to integrate knowledge teaching, competence development, and value shap...Under the background of New Agricultural Sciences, rural revitalization, and agricultural modernization, agriculture-related courses are expected to integrate knowledge teaching, competence development, and value shaping. Vegetable Industrialized Seedling Cultivation is a core applied course for horticulture-related majors. With its strong technical, practical, and industrial features, it provides a suitable platform for curriculum ideological and political education. Based on teaching practice, this study explores the construction of this course from the perspectives of objective reconstruction, ideological and political element mining, content integration, teaching innovation, practice optimization, and assessment reform. The results show that elements such as affection for agriculture, scientific and technological dedication to national development, ecological awareness, craftsmanship, labor spirit, academic integrity, and professional responsibility can be effectively integrated into the whole teaching process. A curriculum model of “goal guidance-content integration-method coordination-multiple evaluation” was established to promote the synergy between professional education and value guidance. Practice indicates that this model helps strengthen students’ professional identity, practical innovation ability, and commitment to serving agriculture, rural areas, and farmers. This study may provide a reference for curriculum reform in agriculture-related majors under the background of New Agricultural Sciences.展开更多
Acetaldehyde plays a significant role in atmospheric photochemical reactions and ozone formation.Previous studies have shown that acetaldehyde may rapidly be generated over short periods and impact ozone production,ye...Acetaldehyde plays a significant role in atmospheric photochemical reactions and ozone formation.Previous studies have shown that acetaldehyde may rapidly be generated over short periods and impact ozone production,yet the underlyingmechanism remains unclear.To better elucidate thesemechanisms,a field campaign was conducted in Dongying,a typical petrochemical city in China.The observed acetaldehyde concentration averaged 3.0±1.6 ppbv,with a peak around 09:00 local time.The diurnal variations of acetaldehyde were categorized into two types,with Category 1 exhibiting relatively high values and increasing sharply in concentration between 07:00 and 09:00 a.m.(refer to morning peak episode,MPE),and the remaining classified as Category 2.Category 1 was similar to previous studies at heavily polluted sites but differed fromcleaner locations.Using an observation-based chemical box model,we found that acetaldehyde contributed an average of 10.2%to the net ozone production rate.Combined with a positive matrix factorizationmodel,we identified secondary formation as the dominant source of acetaldehyde(45.0%),and the daytime production rate of acetaldehyde in Category 1 was significantly higher than that in Category 2.Cis-2-butene and trans-2-butene were identified as key precursors for the rapid acetaldehyde formation during the MEP,with the petroleum industry being their primary source.Volatile organic compounds(VOCs)from petroleum industry contributed over 60%to acetaldehyde formation during the morning peak.Our findings underscore the urgent need for targeted VOCs management strategies in petroleum sector tomitigate both carbonyl and ozone formation.展开更多
Since China’s reform and opening up in 1978,the acceleration of industrialization and urbanization in China had led to dramatic changes in the pattern of urban-rural land use.In this paper,we focused on the rural ind...Since China’s reform and opening up in 1978,the acceleration of industrialization and urbanization in China had led to dramatic changes in the pattern of urban-rural land use.In this paper,we focused on the rural industrialized areas in central China(Xinxiang County and Changyuan City of Henan Province).We used the average nearest neighbor index,spatial statistical analysis,and a structural equation model to analyze the spatiotemporal evolution and influencing factors of urban-rural construction land based on multisource spatial data and survey data.The results showed that:1)from 1975 to 2019,the spatial distribution of urban-rural construction land in rural industrialized areas had evolved from homogeneous distribution to local agglomeration.In terms of comparative analysis of cases,the spatial distribution of urban-rural construction land in Changyuan City had shown a trend from diffusion to agglomeration,and Xinxiang County had overall shown a spatial change from homogenization to agglomeration and then to regional integration development.2)The hot spots with increased urban-rural construction land significantly expanded,and they had a high degree of spatial overlap with industrial development.Among them,Xinxiang County was concentrated in central and marginal areas,and Changyuan was mainly concentrated in central urban areas.3)From the evolution of spatial proximity of urban-rural construction land,rural industrialized areas generally decline,showing the characteristics of internal differentiation in the rate of change.4)Industrial development,social economy,the policy environment,and urban development played a positive role in promoting the expansion of urban-rural construction land in rural industrialized areas.To promote the optimal use of regional land and the integrated development of urban-rural areas,we should combine the advantages of regional endowment,formulate development strategies according to local conditions,and adjust the way that land is used in a timely manner.展开更多
On the basis of the introduction of the connotation of agricultural industrialized cluster,the thesis introduces the competitive advantages of agricultural industrialized cluster as follows:firstly,it makes the agricu...On the basis of the introduction of the connotation of agricultural industrialized cluster,the thesis introduces the competitive advantages of agricultural industrialized cluster as follows:firstly,it makes the agricultural production factors cluster and curtails the agricultural production costs;secondly it enhances the innovation abilities of industries;thirdly it improves the urbanization level of rural areas and increases farmers'income.The thesis also analyzes the status quo of agricultural industrialized cluster in Henan Province,points out the advantages of resources,cost,location and so on,and discuses the existing problems of the agricultural industrialized cluster in Henan Province as follows:firstly,the scale of agricultural industrialized cluster is small and the industrialized chain is short;secondly,there is a shortage of leading enterprises,and the radiating effect within industrialized cluster is not prominent;thirdly,the organization degree of agricultural industrialized cluster is weak,lacking scientific innovation ability.In order to solve the existing problems,the corresponding countermeasures are put forward as follows:firstly,take the market as the orientation,strengthen the policies formulation and accelerate the development of agricultural industrialized cluster in Henan by leaps and bounds;secondly,choose suitable developing models of agricultural industrialized cluster.展开更多
An industrialized technique of preparation for oxidized com starch using oxygen as oxidant was investigated in this paper. The industrialized preparation parameters were optimized as follows: reaction temperature 85-...An industrialized technique of preparation for oxidized com starch using oxygen as oxidant was investigated in this paper. The industrialized preparation parameters were optimized as follows: reaction temperature 85-95 ℃, oxygen flow rate 8-12 L/min, reaction time 210 min, the ratio of starch to water 1:5, 3.5 wt% of NaOH and 0.1 wt% of catalyst. The experimental results show that the concentration of hydrolysate-oxidaton product is 16-18 wt%. The powdered products were gained through dehydrated and powdered process using quadruple-effect evaporator, spray drying tower and guide shell mixer. The composting test indicates that the degradability of the oxidized corn starch can reach 76.4%. The complexation capacity of calcium ions reaches 108.5 mg per gram oxidized starch, and the detergency ratio (P) reaches 1.30 as builder.展开更多
The continuous rise in global environmental challenges has led to urgency toward establishing a secure framework to achieve sustainable development goals.This study establishes a novel theoretical framework to analyze...The continuous rise in global environmental challenges has led to urgency toward establishing a secure framework to achieve sustainable development goals.This study establishes a novel theoretical framework to analyze the role of energy prices,energy consumption,gold prices and economic growth on environmental degradation in newly industrialized economies.To realize sustainable development goals and foster environmental defence,this study utilizes CS-ARDL as the main econometric approach to investigate the asymmetric association between environmental degradation and relevant factors.We also use AMG,CS-DL,Driscoll-Kray and FGLS to enhance the robustness of our findings.Our econometric approach reveals that energy resource prices and renewable energy consumption reduce environmental degradation,while gold prices and fossil energy consumption elevate environmental pollutants.We also confirm the existence of the EKC hypothesis.The findings of our extensive analysis paved the way for a welldesigned environmental policy for NIC economies should focus on renewable energy consumption,green investments,and structural changes.展开更多
To widen the new way of thinking and to explore a new technology of rice planting, industrialized rice production is an advanced rice planting method. All processes of rice growth were finished in factory and they pro...To widen the new way of thinking and to explore a new technology of rice planting, industrialized rice production is an advanced rice planting method. All processes of rice growth were finished in factory and they provided proper growth conditions (including light, CO2 concentration, temperature, moisture and minerals) on the base of different growth stages. This paper illustrated the theory of rice growth in factory, the processes of rice cultivation and fundamental structure of rice factory. It combined natural conditions with artificial environment to create an ideal rice growing environment. Rice cultivation’s cycle in factory was shortened and normally one day was divided into 2 - 3 special days. It could be continuous production and prevented rice planting from being affected by external conditions. Industrialized rice makes full use of energy on the basis of sunray and artificial supplies to increase the rice yield and it will start a revolution of rice planting and solve the problem of food safety.展开更多
Urbanization,often coupled with industrialization,is generally considered as a boost for improving livelihood as well as alleviating ecological pressures of the rural areas.However,this experience needs to be tested i...Urbanization,often coupled with industrialization,is generally considered as a boost for improving livelihood as well as alleviating ecological pressures of the rural areas.However,this experience needs to be tested in less industrialized areas,particularly where the urbanization is driven by non-economic factors such as urban public services and relevant government policies rather than employment opportunities.Taking two villages on the Qinghai-Tibet Plateau as examples,through the field investigation by using semi-structured questionnaires and in-depth interviews,and statistical data analysis,we explored the impacts of urbanization on migrants’livelihoods and the ecological conditions of their original village rangeland.We found that the disposable income and savings of emigrant households were less than the stay households,which might be correlated to the limited employment due to the lagged industrialization in the local township,and the mismatch between their traditional labor skills and the demands of urban services.Their home-village rangeland overuse was not alleviated since the increasing grazing pressure caused by the stay households,though the emigrant households intended to decrease the number of livestock on their home pasture.We concluded that the urbanization misaligned with local industrialization may fail to improve migrant livelihoods and local ecological conditions in less industrialized areas.Our research supplements the previous urbanization theory by highlighting the non-industrialization driven urbanization,and is particularly pertinent for the transitional countries worldwide.展开更多
Chinese top planner-State Development and Reform Commission,has decided to organize and coordinate an implementation of a special project for high tech industrialization of fiber-reinforced compound materials in 2008 ...Chinese top planner-State Development and Reform Commission,has decided to organize and coordinate an implementation of a special project for high tech industrialization of fiber-reinforced compound materials in 2008 up to 2009.The decision has recently been issued in its national circular(doc. 3177,Yr.2007)to call for local enterprises to apply for this special project support.展开更多
Pasteurization,116 and 121℃sterilization were used in the development of Sichuan Industrial Huiguorou.The sensory,color,texture,lipid oxidation,preservation and flavor substance types and contents of the products wer...Pasteurization,116 and 121℃sterilization were used in the development of Sichuan Industrial Huiguorou.The sensory,color,texture,lipid oxidation,preservation and flavor substance types and contents of the products were determined,and the effects of different sterilization methods on product characteristics were compared.The results showed that pasteurization was the best way to maintain the edible quality of products,but the storage period of products was very short,so the products could only be quickly distributed and consumed.Sterilization at 116℃and sterilization at 121℃could ensure the shelf life of Huiguorou under non-refrigeration conditions,and effectively solve the problem of long-term storage and transportation of Sichuan meat dishes.However,higher temperature had more or less adverse effect on the flavor of the product,and the product texture was too soft.It suggested that the better way was to sterilize at 116℃,which had less adverse effect on the flavor of the product,and could greatly prolong the non-refrigerated storability of the product,and increase the content of aldehydes and esters,so as to improve the flavor.展开更多
This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site...This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site”and compared with“conventional process”(structural masonry of concrete blocks).The premise of the study was to diagnose the level of acceptance of the buildings considered industrialized by the Brazilian population,aiming to assess whether the preference for the systems considered“conventional”and the rejection of the“industrialized”is decreasing in Brazil.This article concerns the results obtained in the second phase of the research,which was carried out after five years of the first phase.So,if the buildings were considered new in the first phase,this second research was carried out after the depreciation due to the action of time.To quantify the“degree of satisfaction”the same checklist of the first survey was applied,in the same neighborhood and the sum attributed to each answer made by residents was applied and,as a result,it was possible to ascertain the oscillations in it and to confirm the satisfactory acceptance of industrialized construction systems and a tendency to reduce rejection by the population in relation to the innovative construction systems.展开更多
Tremendous achievements of live pig industry in China are closely related to the industrialization of the industry,and development trend of the latter is essential for maintaining sustained and stable development of a...Tremendous achievements of live pig industry in China are closely related to the industrialization of the industry,and development trend of the latter is essential for maintaining sustained and stable development of animal husbandry.The paper,on the basis of defining the evolution of industrialized live pig breeding model,elaborated the industrialized operation models of live pig industry in China since 1978,i.e.household operation,large-scale operation,and industrialized operation.The external environment for the development of live pig industry was analyzed,such as global economic competition,development of experience economy,and stronger green consciousness of consumers.Then development trend of industrialized live pig breeding was analyzed as"expanding international market,consolidating domestic market,integrating resources of live pig industry for the integrated operation,promoting the industrialization model and breeding technology driven by live pig processing,applying animal welfare and the internet of things in live pig breeding industry".展开更多
The development of the family-based handicraft industry in the Yangzi delta provided supplementary income and employment opportunities to auxiliary family members. But it did not replace subsistence farming as the pri...The development of the family-based handicraft industry in the Yangzi delta provided supplementary income and employment opportunities to auxiliary family members. But it did not replace subsistence farming as the primary method in which peasants made their living, and more importantly, it did not allow China to close the gap in the great divergence with the West. So why didn't the cotton-based handicraft industry catapult the Yangzi delta region into the modem era of industrialization? Why did the handicraft industry merely serve as a supplementary rather than an alternative means of livelihood? To understand the reasons why the handicraft industry did not transform China into an industrial and urban nation, it is important to examine the constraints in which population growth and land intensification had imposed on the peasants of the delta. These factors combined with the favorable geographical environment and commercial opportunities for trade in other regions, forced peasants to adopt the family-based handicraft industry as a supplementary source of income for survival. While the impact-response model may have suggested that it was the inability of the handicraft spinners and weavers to compete against British machines and the subsequent drop in cotton prices, a China-centered approach advocated by Paul Cohen would suggest domestic factors such as rapid population growth due to changes in taxation policies and the diminishing rate of return in labor, and the insufficient production office and grain may have been the real reasons that prevented the handicraft industry from developing into an alternative for farming.展开更多
Industrialized building systems came into the agenda in response to requirements of earthquake resistance and rapid construction in Turkey after 1999 Izmit earthquake. CFS (cold-formed steel) framing system is able ...Industrialized building systems came into the agenda in response to requirements of earthquake resistance and rapid construction in Turkey after 1999 Izmit earthquake. CFS (cold-formed steel) framing system is able to meet the existing requirements in the field of low rise residential. But, objective comparison is required for the selection of structural systems used in low rise residentials. CFS system is compared with timber frame and reinforced concrete building systems in terms of design and applicability criterion in circumstances of Turkey, and the results of this comparison are presented in this study. In order to compare building systems objectively, a sample project, has been designed and studied on it. Three structural systems have been separately applied over this project designed in consideration of existing housing stock and preferences of the construction industry of Turkey Evaluation method with different values is selected in comparison and properties of three different structural systems are graded according to evaluation method. As a result of comparison, the CFS system is the most advantageous low rise residential prefabricated construction system in terms of design and applicability展开更多
On the strength of the status quo of Chinese land transfer,the changes of the county agricultural production factor market arising from land transfer from four aspects covering land market,agricultural capital market,...On the strength of the status quo of Chinese land transfer,the changes of the county agricultural production factor market arising from land transfer from four aspects covering land market,agricultural capital market,agricultural labor market and agricultural science and technology.The impacts of land transfer on county agricultural industrialized development are analyzed:in the first place,the large amount of land required by the county agricultural scale production can be effectively supplied;in the second place,a large number of labors required by the county agricultural industrialized production can be effectively fulfilled;in the third place,the innovation of science and technology provides motivation for adjusting the county agricultural industrial structure.On the basis of that,the countermeasures on promoting the county economic development are put forward:firstly,the land transfer market should be standardized to ensure the sustainable and stable development of county agricultural industrialized development;secondly,the commercial value,variations and added value of the county agricultural products should be improved;thirdly,the input on the county agricultural capital should be ensured.展开更多
Industrialized buildings,characterized by off-site manufacturing and on-site installation,offer notable improvements in efficiency,cost-effectiveness,and material use.This transition from traditional construction meth...Industrialized buildings,characterized by off-site manufacturing and on-site installation,offer notable improvements in efficiency,cost-effectiveness,and material use.This transition from traditional construction methods not only accelerates building processes but also enhances working efficiencies globally.Despite its widespread adoption,the performance of industrialized building manufacturing(IBM)can still be optimized,particularly in enhancing time efficiency and reducing costs.This paper explores the integration of Artificial Intelligence(AI)and robotics at IBM to improve efficiency,cost-effectiveness,and material use in off-site assembly.Through a narrative literature review,this study systematically categorizes AI-based Robots(AIRs)applications into four critical stages—Cognition,Communication,Control,and Collab-oration and Coordination,and then investigates their appli-cation in the factory assembly process for industrialized buildings,which is structured into distinct stages:compo-nent preparation,sub-assembly,main assembly,finishing tasks,and quality control.Each stage,from positioning components to the integration of larger modules and subsequent quality inspection,often involves robots or human-robot collaboration to enhance precision and effi-ciency.By examining research from 2014 to 2024,the review highlights the significant improvements AI-based robots have introduced to the construction sector,identifies existing challenges,and outlines future research directions.This comprehensive analysis aims to establish more effi-cient,precise,and tailored construction processes,paving the way for advanced IBM.展开更多
Hydrothermal cracking converts biomass waste into superior organic fertilizer by hydrolyzing it at temperatures of 180–220℃ and pressures of 1.5–2.45 MPa,enhancing treatment efficiency and nutritional value.Most of...Hydrothermal cracking converts biomass waste into superior organic fertilizer by hydrolyzing it at temperatures of 180–220℃ and pressures of 1.5–2.45 MPa,enhancing treatment efficiency and nutritional value.Most of the research on hydrothermal cracking solid organic fertilizer(HCSOF)has been centered on its characterization and fertilizer properties;however,research is scarce regarding its greenhouse gas emissions and toxic metals(TMs).This study assesses the carbon and nitrogen retention rate and TMs of industrial HCSOF.Specifically,environmental impact was evaluated using indicators such as hazard quotient(HQ)and risk assessment code(RAC),with planting experiments conducted to assess TM's effect on soil and plants.The results indicate that industrial HCSOF has a high fixed carbon rate of up to 91.2%and a fixed nitrogen rate of 98.40%,manifesting the potential for reducing greenhouse gas emissions.Additionally,HCSOF contains high ecological safety of TMs such as Hg(HQ=0.008,RAC=0%),As(HQ=0.055,RAC=37.08%),Cd(HQ=0.708,RAC=1.76%),Pb(HQ=0.176,RAC=0.87%),and Cr(HQ=0.853,RAC=0.12%).After being applied to sandy soil,15,000 kg/ha of HCSOF can increase the organic matter and nutrients in both soil and maize straw,reducing TMs and their ecological risks.By obtaining a deeper understanding of the composition and practical application of industrial HCSOF,valuable insights can be offered to reduce greenhouse gas emissions and eliminate potential risks associated with TM pollution.展开更多
In industrial Internet of Everything(IoE)environments,the precise detection of tiny foreign fibers on the surface of bobbin yarns is crucial for ensuring the quality of textile products.However,detecting these fibers ...In industrial Internet of Everything(IoE)environments,the precise detection of tiny foreign fibers on the surface of bobbin yarns is crucial for ensuring the quality of textile products.However,detecting these fibers often exceeds the capabilities of both human vision and existing automation equipment.To address this challenge,this research proposes a novel foreign fiber segmentation method that integrates Generative Adversarial Networks(GANs)with an enhanced encoder-decoder architecture,significantly improving detection accuracy in industrial IoE scenarios.Specifically,we develop a dual-path attention encoding network that synergistically combines MobileNetV2’s computational efficiency with ContextNet’s multi-scale contextual awareness,thereby enhancing the extraction of contextual features for tiny foreign fibers.A hybrid channel-spatial attention mechanism is designed by parallel integration of channel-wise excitation and spatial attention mapping,which substantially strengthens the capture of discriminative features for tiny foreign fibers in high-resolution images.The decoding stage employs dense skip-connections to construct multi-scale feature propagation paths,optimizing detail preservation during upsampling processes.To tackle the severe class imbalance in fiber-background pixel distribution,this research introduces a Weighted Binary Cross-Entropy(WBCE)loss function with adaptive focal weighting.Experimental results demonstrate that the proposed DeepLab-DPA framework achieves 98.77%Accuracy,85.93%MIoU,and balanced performance metrics(87.01%Precision,86.84%Recall,86.92%F1-Score),confirming its effectiveness for industrial fiber detection tasks.展开更多
The increasing interconnection of modern industrial control systems(ICSs)with the Internet has enhanced operational efficiency,but alsomade these systemsmore vulnerable to cyberattacks.This heightened exposure has dri...The increasing interconnection of modern industrial control systems(ICSs)with the Internet has enhanced operational efficiency,but alsomade these systemsmore vulnerable to cyberattacks.This heightened exposure has driven a growing need for robust ICS security measures.Among the key defences,intrusion detection technology is critical in identifying threats to ICS networks.This paper provides an overview of the distinctive characteristics of ICS network security,highlighting standard attack methods.It then examines various intrusion detection methods,including those based on misuse detection,anomaly detection,machine learning,and specialised requirements.This paper concludes by exploring future directions for developing intrusion detection systems to advance research and ensure the continued security and reliability of ICS operations.展开更多
Bottom-up and top-down endogenous automobile clusters exhibit distinct evolutionary traits and driving mechanisms,yet their comparative analysis remains understudied.Therefore,using Taizhou automobile industry cluster...Bottom-up and top-down endogenous automobile clusters exhibit distinct evolutionary traits and driving mechanisms,yet their comparative analysis remains understudied.Therefore,using Taizhou automobile industry cluster(TAIC)and Wuhu automobile industry cluster(WAIC)as cases,using historical statistical data and field interview data from the 1980s to 2023,combined with qualitative research methods of thematic and diachronic analysis,and quantitative research methods of social network analysis,we compare both endogenous automobile clusters’evolutionary traits and driving mechanisms.The results confirm both clusters undergo multi-scale spatial reconfiguration,organizational complexification,and intelligent networking technological transformation,yet diverge fundamentally:TAIC evolves through market-driven progressive expansion,transitioning from single to dual-core structures via private enterprise networking,with innovation following market-integrated logic and institutional thickness built on demand-driven evolution.Conversely,WAIC follows planned expansion,maintaining state-led hierarchical single-core stability through policy-driven breakthrough innovation and supply-dominated institutional construction-though both ultimately require formal-informal system synergy.Their coevolution is driven by dynamic interactions of path dependence(weakening influence),learning-innovation(strengthening influence),and relationship selection(inverted U-shaped trajectory),with divergent development paths rooted in TAIC’s grassroots self-organization genes versus WAIC’s top-level design genes,amplified by core enterprises’strategic disparities.The research findings can not only provide decision-making support for China’s industrial upgrading,but also contribute China’s insights to global economic governance.展开更多
摘要Under the background of New Agricultural Sciences, rural revitalization, and agricultural modernization, agriculture-related courses are expected to integrate knowledge teaching, competence development, and value shaping. Vegetable Industrialized Seedling Cultivation is a core applied course for horticulture-related majors. With its strong technical, practical, and industrial features, it provides a suitable platform for curriculum ideological and political education. Based on teaching practice, this study explores the construction of this course from the perspectives of objective reconstruction, ideological and political element mining, content integration, teaching innovation, practice optimization, and assessment reform. The results show that elements such as affection for agriculture, scientific and technological dedication to national development, ecological awareness, craftsmanship, labor spirit, academic integrity, and professional responsibility can be effectively integrated into the whole teaching process. A curriculum model of “goal guidance-content integration-method coordination-multiple evaluation” was established to promote the synergy between professional education and value guidance. Practice indicates that this model helps strengthen students’ professional identity, practical innovation ability, and commitment to serving agriculture, rural areas, and farmers. This study may provide a reference for curriculum reform in agriculture-related majors under the background of New Agricultural Sciences.
基金supported by the National Key Research and Development Program of the Ministry of Science of Technology of China(No.2022YFC3701101)the National Natural Science Foundation of China(No.42105106)+2 种基金China Postdoctoral Science Foundation(No.2021M691921)the Ministry of Ecology and Environment of the People’s Republic of China(No.DQGG202121)Dongying Ecological and Environmental Bureau(No.2021DFKY-0779).
摘要Acetaldehyde plays a significant role in atmospheric photochemical reactions and ozone formation.Previous studies have shown that acetaldehyde may rapidly be generated over short periods and impact ozone production,yet the underlyingmechanism remains unclear.To better elucidate thesemechanisms,a field campaign was conducted in Dongying,a typical petrochemical city in China.The observed acetaldehyde concentration averaged 3.0±1.6 ppbv,with a peak around 09:00 local time.The diurnal variations of acetaldehyde were categorized into two types,with Category 1 exhibiting relatively high values and increasing sharply in concentration between 07:00 and 09:00 a.m.(refer to morning peak episode,MPE),and the remaining classified as Category 2.Category 1 was similar to previous studies at heavily polluted sites but differed fromcleaner locations.Using an observation-based chemical box model,we found that acetaldehyde contributed an average of 10.2%to the net ozone production rate.Combined with a positive matrix factorizationmodel,we identified secondary formation as the dominant source of acetaldehyde(45.0%),and the daytime production rate of acetaldehyde in Category 1 was significantly higher than that in Category 2.Cis-2-butene and trans-2-butene were identified as key precursors for the rapid acetaldehyde formation during the MEP,with the petroleum industry being their primary source.Volatile organic compounds(VOCs)from petroleum industry contributed over 60%to acetaldehyde formation during the morning peak.Our findings underscore the urgent need for targeted VOCs management strategies in petroleum sector tomitigate both carbonyl and ozone formation.
基金Under the auspices of National Natural Science Foundation of China(No.42271225)Research Program Fund for Humanities and Social Sciences of the Ministry of Education of China(No.22YJA790050)+2 种基金Henan Provincial Planning Fund for Philosophy and Social Sciences(No.2022BJJ011)Postgraduate Cultivating Innovation Action Plan of Henan University(No.SYLYC2022014)Henan University of Economics and Law Huang Tingfang/Xinhe Young Scholars Program(No.13)。
摘要Since China’s reform and opening up in 1978,the acceleration of industrialization and urbanization in China had led to dramatic changes in the pattern of urban-rural land use.In this paper,we focused on the rural industrialized areas in central China(Xinxiang County and Changyuan City of Henan Province).We used the average nearest neighbor index,spatial statistical analysis,and a structural equation model to analyze the spatiotemporal evolution and influencing factors of urban-rural construction land based on multisource spatial data and survey data.The results showed that:1)from 1975 to 2019,the spatial distribution of urban-rural construction land in rural industrialized areas had evolved from homogeneous distribution to local agglomeration.In terms of comparative analysis of cases,the spatial distribution of urban-rural construction land in Changyuan City had shown a trend from diffusion to agglomeration,and Xinxiang County had overall shown a spatial change from homogenization to agglomeration and then to regional integration development.2)The hot spots with increased urban-rural construction land significantly expanded,and they had a high degree of spatial overlap with industrial development.Among them,Xinxiang County was concentrated in central and marginal areas,and Changyuan was mainly concentrated in central urban areas.3)From the evolution of spatial proximity of urban-rural construction land,rural industrialized areas generally decline,showing the characteristics of internal differentiation in the rate of change.4)Industrial development,social economy,the policy environment,and urban development played a positive role in promoting the expansion of urban-rural construction land in rural industrialized areas.To promote the optimal use of regional land and the integrated development of urban-rural areas,we should combine the advantages of regional endowment,formulate development strategies according to local conditions,and adjust the way that land is used in a timely manner.
摘要On the basis of the introduction of the connotation of agricultural industrialized cluster,the thesis introduces the competitive advantages of agricultural industrialized cluster as follows:firstly,it makes the agricultural production factors cluster and curtails the agricultural production costs;secondly it enhances the innovation abilities of industries;thirdly it improves the urbanization level of rural areas and increases farmers'income.The thesis also analyzes the status quo of agricultural industrialized cluster in Henan Province,points out the advantages of resources,cost,location and so on,and discuses the existing problems of the agricultural industrialized cluster in Henan Province as follows:firstly,the scale of agricultural industrialized cluster is small and the industrialized chain is short;secondly,there is a shortage of leading enterprises,and the radiating effect within industrialized cluster is not prominent;thirdly,the organization degree of agricultural industrialized cluster is weak,lacking scientific innovation ability.In order to solve the existing problems,the corresponding countermeasures are put forward as follows:firstly,take the market as the orientation,strengthen the policies formulation and accelerate the development of agricultural industrialized cluster in Henan by leaps and bounds;secondly,choose suitable developing models of agricultural industrialized cluster.
摘要An industrialized technique of preparation for oxidized com starch using oxygen as oxidant was investigated in this paper. The industrialized preparation parameters were optimized as follows: reaction temperature 85-95 ℃, oxygen flow rate 8-12 L/min, reaction time 210 min, the ratio of starch to water 1:5, 3.5 wt% of NaOH and 0.1 wt% of catalyst. The experimental results show that the concentration of hydrolysate-oxidaton product is 16-18 wt%. The powdered products were gained through dehydrated and powdered process using quadruple-effect evaporator, spray drying tower and guide shell mixer. The composting test indicates that the degradability of the oxidized corn starch can reach 76.4%. The complexation capacity of calcium ions reaches 108.5 mg per gram oxidized starch, and the detergency ratio (P) reaches 1.30 as builder.
基金the project titled“Cluster for innovative energy”in the frame of the program“HORIZON-MSCA-2022-SE-01”under the Grant agreement number 101129820.
摘要The continuous rise in global environmental challenges has led to urgency toward establishing a secure framework to achieve sustainable development goals.This study establishes a novel theoretical framework to analyze the role of energy prices,energy consumption,gold prices and economic growth on environmental degradation in newly industrialized economies.To realize sustainable development goals and foster environmental defence,this study utilizes CS-ARDL as the main econometric approach to investigate the asymmetric association between environmental degradation and relevant factors.We also use AMG,CS-DL,Driscoll-Kray and FGLS to enhance the robustness of our findings.Our econometric approach reveals that energy resource prices and renewable energy consumption reduce environmental degradation,while gold prices and fossil energy consumption elevate environmental pollutants.We also confirm the existence of the EKC hypothesis.The findings of our extensive analysis paved the way for a welldesigned environmental policy for NIC economies should focus on renewable energy consumption,green investments,and structural changes.
摘要To widen the new way of thinking and to explore a new technology of rice planting, industrialized rice production is an advanced rice planting method. All processes of rice growth were finished in factory and they provided proper growth conditions (including light, CO2 concentration, temperature, moisture and minerals) on the base of different growth stages. This paper illustrated the theory of rice growth in factory, the processes of rice cultivation and fundamental structure of rice factory. It combined natural conditions with artificial environment to create an ideal rice growing environment. Rice cultivation’s cycle in factory was shortened and normally one day was divided into 2 - 3 special days. It could be continuous production and prevented rice planting from being affected by external conditions. Industrialized rice makes full use of energy on the basis of sunray and artificial supplies to increase the rice yield and it will start a revolution of rice planting and solve the problem of food safety.
基金supported by National Natural Science Foundation of China(Grant number 41971256 and 42271290)。
摘要Urbanization,often coupled with industrialization,is generally considered as a boost for improving livelihood as well as alleviating ecological pressures of the rural areas.However,this experience needs to be tested in less industrialized areas,particularly where the urbanization is driven by non-economic factors such as urban public services and relevant government policies rather than employment opportunities.Taking two villages on the Qinghai-Tibet Plateau as examples,through the field investigation by using semi-structured questionnaires and in-depth interviews,and statistical data analysis,we explored the impacts of urbanization on migrants’livelihoods and the ecological conditions of their original village rangeland.We found that the disposable income and savings of emigrant households were less than the stay households,which might be correlated to the limited employment due to the lagged industrialization in the local township,and the mismatch between their traditional labor skills and the demands of urban services.Their home-village rangeland overuse was not alleviated since the increasing grazing pressure caused by the stay households,though the emigrant households intended to decrease the number of livestock on their home pasture.We concluded that the urbanization misaligned with local industrialization may fail to improve migrant livelihoods and local ecological conditions in less industrialized areas.Our research supplements the previous urbanization theory by highlighting the non-industrialization driven urbanization,and is particularly pertinent for the transitional countries worldwide.
摘要Chinese top planner-State Development and Reform Commission,has decided to organize and coordinate an implementation of a special project for high tech industrialization of fiber-reinforced compound materials in 2008 up to 2009.The decision has recently been issued in its national circular(doc. 3177,Yr.2007)to call for local enterprises to apply for this special project support.
基金Open Project of Sichuan Key Laboratory of Culinary Science of Sichuan Tourism University(PRKX201905)Open Fund Project of Sichuan Key Laboratory of Meat Processing(20-R-11)Transformation of Scientific and Technological Achievements and Patent Implementation Project of Liangshan Prefecture(20CGZH0003).
摘要Pasteurization,116 and 121℃sterilization were used in the development of Sichuan Industrial Huiguorou.The sensory,color,texture,lipid oxidation,preservation and flavor substance types and contents of the products were determined,and the effects of different sterilization methods on product characteristics were compared.The results showed that pasteurization was the best way to maintain the edible quality of products,but the storage period of products was very short,so the products could only be quickly distributed and consumed.Sterilization at 116℃and sterilization at 121℃could ensure the shelf life of Huiguorou under non-refrigeration conditions,and effectively solve the problem of long-term storage and transportation of Sichuan meat dishes.However,higher temperature had more or less adverse effect on the flavor of the product,and the product texture was too soft.It suggested that the better way was to sterilize at 116℃,which had less adverse effect on the flavor of the product,and could greatly prolong the non-refrigerated storability of the product,and increase the content of aldehydes and esters,so as to improve the flavor.
摘要This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site”and compared with“conventional process”(structural masonry of concrete blocks).The premise of the study was to diagnose the level of acceptance of the buildings considered industrialized by the Brazilian population,aiming to assess whether the preference for the systems considered“conventional”and the rejection of the“industrialized”is decreasing in Brazil.This article concerns the results obtained in the second phase of the research,which was carried out after five years of the first phase.So,if the buildings were considered new in the first phase,this second research was carried out after the depreciation due to the action of time.To quantify the“degree of satisfaction”the same checklist of the first survey was applied,in the same neighborhood and the sum attributed to each answer made by residents was applied and,as a result,it was possible to ascertain the oscillations in it and to confirm the satisfactory acceptance of industrialized construction systems and a tendency to reduce rejection by the population in relation to the innovative construction systems.
基金Supported by Business Management Cultivated Discipline of Rongchang Campus,Southwest University(RCQG207001)
摘要Tremendous achievements of live pig industry in China are closely related to the industrialization of the industry,and development trend of the latter is essential for maintaining sustained and stable development of animal husbandry.The paper,on the basis of defining the evolution of industrialized live pig breeding model,elaborated the industrialized operation models of live pig industry in China since 1978,i.e.household operation,large-scale operation,and industrialized operation.The external environment for the development of live pig industry was analyzed,such as global economic competition,development of experience economy,and stronger green consciousness of consumers.Then development trend of industrialized live pig breeding was analyzed as"expanding international market,consolidating domestic market,integrating resources of live pig industry for the integrated operation,promoting the industrialization model and breeding technology driven by live pig processing,applying animal welfare and the internet of things in live pig breeding industry".
摘要The development of the family-based handicraft industry in the Yangzi delta provided supplementary income and employment opportunities to auxiliary family members. But it did not replace subsistence farming as the primary method in which peasants made their living, and more importantly, it did not allow China to close the gap in the great divergence with the West. So why didn't the cotton-based handicraft industry catapult the Yangzi delta region into the modem era of industrialization? Why did the handicraft industry merely serve as a supplementary rather than an alternative means of livelihood? To understand the reasons why the handicraft industry did not transform China into an industrial and urban nation, it is important to examine the constraints in which population growth and land intensification had imposed on the peasants of the delta. These factors combined with the favorable geographical environment and commercial opportunities for trade in other regions, forced peasants to adopt the family-based handicraft industry as a supplementary source of income for survival. While the impact-response model may have suggested that it was the inability of the handicraft spinners and weavers to compete against British machines and the subsequent drop in cotton prices, a China-centered approach advocated by Paul Cohen would suggest domestic factors such as rapid population growth due to changes in taxation policies and the diminishing rate of return in labor, and the insufficient production office and grain may have been the real reasons that prevented the handicraft industry from developing into an alternative for farming.
摘要Industrialized building systems came into the agenda in response to requirements of earthquake resistance and rapid construction in Turkey after 1999 Izmit earthquake. CFS (cold-formed steel) framing system is able to meet the existing requirements in the field of low rise residential. But, objective comparison is required for the selection of structural systems used in low rise residentials. CFS system is compared with timber frame and reinforced concrete building systems in terms of design and applicability criterion in circumstances of Turkey, and the results of this comparison are presented in this study. In order to compare building systems objectively, a sample project, has been designed and studied on it. Three structural systems have been separately applied over this project designed in consideration of existing housing stock and preferences of the construction industry of Turkey Evaluation method with different values is selected in comparison and properties of three different structural systems are graded according to evaluation method. As a result of comparison, the CFS system is the most advantageous low rise residential prefabricated construction system in terms of design and applicability
基金Supported by Science and Technology Programs of Shaanxi Radioand Television University in 2009(02092025)
摘要On the strength of the status quo of Chinese land transfer,the changes of the county agricultural production factor market arising from land transfer from four aspects covering land market,agricultural capital market,agricultural labor market and agricultural science and technology.The impacts of land transfer on county agricultural industrialized development are analyzed:in the first place,the large amount of land required by the county agricultural scale production can be effectively supplied;in the second place,a large number of labors required by the county agricultural industrialized production can be effectively fulfilled;in the third place,the innovation of science and technology provides motivation for adjusting the county agricultural industrial structure.On the basis of that,the countermeasures on promoting the county economic development are put forward:firstly,the land transfer market should be standardized to ensure the sustainable and stable development of county agricultural industrialized development;secondly,the commercial value,variations and added value of the county agricultural products should be improved;thirdly,the input on the county agricultural capital should be ensured.
摘要Industrialized buildings,characterized by off-site manufacturing and on-site installation,offer notable improvements in efficiency,cost-effectiveness,and material use.This transition from traditional construction methods not only accelerates building processes but also enhances working efficiencies globally.Despite its widespread adoption,the performance of industrialized building manufacturing(IBM)can still be optimized,particularly in enhancing time efficiency and reducing costs.This paper explores the integration of Artificial Intelligence(AI)and robotics at IBM to improve efficiency,cost-effectiveness,and material use in off-site assembly.Through a narrative literature review,this study systematically categorizes AI-based Robots(AIRs)applications into four critical stages—Cognition,Communication,Control,and Collab-oration and Coordination,and then investigates their appli-cation in the factory assembly process for industrialized buildings,which is structured into distinct stages:compo-nent preparation,sub-assembly,main assembly,finishing tasks,and quality control.Each stage,from positioning components to the integration of larger modules and subsequent quality inspection,often involves robots or human-robot collaboration to enhance precision and effi-ciency.By examining research from 2014 to 2024,the review highlights the significant improvements AI-based robots have introduced to the construction sector,identifies existing challenges,and outlines future research directions.This comprehensive analysis aims to establish more effi-cient,precise,and tailored construction processes,paving the way for advanced IBM.
基金supported by the Key-Area Research and Development Program of Guangdong Province,China(No.2020B1111380001)Beijing Natural Science Foundation,China(No.JQ24053)+1 种基金the National Natural Science Foundation of China(Nos.52070116 and52276202)Beijing Municipal Natural Science Foundation,China(No.2222012)。
摘要Hydrothermal cracking converts biomass waste into superior organic fertilizer by hydrolyzing it at temperatures of 180–220℃ and pressures of 1.5–2.45 MPa,enhancing treatment efficiency and nutritional value.Most of the research on hydrothermal cracking solid organic fertilizer(HCSOF)has been centered on its characterization and fertilizer properties;however,research is scarce regarding its greenhouse gas emissions and toxic metals(TMs).This study assesses the carbon and nitrogen retention rate and TMs of industrial HCSOF.Specifically,environmental impact was evaluated using indicators such as hazard quotient(HQ)and risk assessment code(RAC),with planting experiments conducted to assess TM's effect on soil and plants.The results indicate that industrial HCSOF has a high fixed carbon rate of up to 91.2%and a fixed nitrogen rate of 98.40%,manifesting the potential for reducing greenhouse gas emissions.Additionally,HCSOF contains high ecological safety of TMs such as Hg(HQ=0.008,RAC=0%),As(HQ=0.055,RAC=37.08%),Cd(HQ=0.708,RAC=1.76%),Pb(HQ=0.176,RAC=0.87%),and Cr(HQ=0.853,RAC=0.12%).After being applied to sandy soil,15,000 kg/ha of HCSOF can increase the organic matter and nutrients in both soil and maize straw,reducing TMs and their ecological risks.By obtaining a deeper understanding of the composition and practical application of industrial HCSOF,valuable insights can be offered to reduce greenhouse gas emissions and eliminate potential risks associated with TM pollution.
基金supported by the Science and Technology Program Project of the Seventh Division of Xinjiang Production and Construction Corps(No.QS2023002).
摘要In industrial Internet of Everything(IoE)environments,the precise detection of tiny foreign fibers on the surface of bobbin yarns is crucial for ensuring the quality of textile products.However,detecting these fibers often exceeds the capabilities of both human vision and existing automation equipment.To address this challenge,this research proposes a novel foreign fiber segmentation method that integrates Generative Adversarial Networks(GANs)with an enhanced encoder-decoder architecture,significantly improving detection accuracy in industrial IoE scenarios.Specifically,we develop a dual-path attention encoding network that synergistically combines MobileNetV2’s computational efficiency with ContextNet’s multi-scale contextual awareness,thereby enhancing the extraction of contextual features for tiny foreign fibers.A hybrid channel-spatial attention mechanism is designed by parallel integration of channel-wise excitation and spatial attention mapping,which substantially strengthens the capture of discriminative features for tiny foreign fibers in high-resolution images.The decoding stage employs dense skip-connections to construct multi-scale feature propagation paths,optimizing detail preservation during upsampling processes.To tackle the severe class imbalance in fiber-background pixel distribution,this research introduces a Weighted Binary Cross-Entropy(WBCE)loss function with adaptive focal weighting.Experimental results demonstrate that the proposed DeepLab-DPA framework achieves 98.77%Accuracy,85.93%MIoU,and balanced performance metrics(87.01%Precision,86.84%Recall,86.92%F1-Score),confirming its effectiveness for industrial fiber detection tasks.
摘要The increasing interconnection of modern industrial control systems(ICSs)with the Internet has enhanced operational efficiency,but alsomade these systemsmore vulnerable to cyberattacks.This heightened exposure has driven a growing need for robust ICS security measures.Among the key defences,intrusion detection technology is critical in identifying threats to ICS networks.This paper provides an overview of the distinctive characteristics of ICS network security,highlighting standard attack methods.It then examines various intrusion detection methods,including those based on misuse detection,anomaly detection,machine learning,and specialised requirements.This paper concludes by exploring future directions for developing intrusion detection systems to advance research and ensure the continued security and reliability of ICS operations.
基金Under the auspices of National Natural Science Foundation of China(No.42571219)Key Project of Zhejiang Province Soft Science Research Plan(No.2023C25014)。
摘要Bottom-up and top-down endogenous automobile clusters exhibit distinct evolutionary traits and driving mechanisms,yet their comparative analysis remains understudied.Therefore,using Taizhou automobile industry cluster(TAIC)and Wuhu automobile industry cluster(WAIC)as cases,using historical statistical data and field interview data from the 1980s to 2023,combined with qualitative research methods of thematic and diachronic analysis,and quantitative research methods of social network analysis,we compare both endogenous automobile clusters’evolutionary traits and driving mechanisms.The results confirm both clusters undergo multi-scale spatial reconfiguration,organizational complexification,and intelligent networking technological transformation,yet diverge fundamentally:TAIC evolves through market-driven progressive expansion,transitioning from single to dual-core structures via private enterprise networking,with innovation following market-integrated logic and institutional thickness built on demand-driven evolution.Conversely,WAIC follows planned expansion,maintaining state-led hierarchical single-core stability through policy-driven breakthrough innovation and supply-dominated institutional construction-though both ultimately require formal-informal system synergy.Their coevolution is driven by dynamic interactions of path dependence(weakening influence),learning-innovation(strengthening influence),and relationship selection(inverted U-shaped trajectory),with divergent development paths rooted in TAIC’s grassroots self-organization genes versus WAIC’s top-level design genes,amplified by core enterprises’strategic disparities.The research findings can not only provide decision-making support for China’s industrial upgrading,but also contribute China’s insights to global economic governance.