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Sorption Characteristics of CO2on Rocks and Minerals in Storing CO2Processes 认领 引用 被引量：2
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作者 Takashi Fujii Satomi Nakagawa +2 位作者 Yoshiyuki Sato Hiroshi Inomata Toshiyuki Hashida 《Natural Resources》 2010年第1期1-10,共10页
As CO2 is injected into pore spaces of water-filled reservoir rocks, it displaces much of the pore fluids. In short terms (several to tens of years), the greater part of the injected CO2 is predicted to stay as free C... As CO2 is injected into pore spaces of water-filled reservoir rocks, it displaces much of the pore fluids. In short terms (several to tens of years), the greater part of the injected CO2 is predicted to stay as free CO2 , i.e. in a CO2 rich dense phase that may contain some water. This paper investigates the sorption characteristics for rocks (quartzose arenite, greywacke, shale, granite and serpentine) and minerals (quartz and albite) in the CO2 rich dense phase. The measurements were conducted at 50°C and 100°C, and pressures up to 20 MPa. Our results demonstrated that significant quantities of CO2 were sorbed with all the samples. Particularly, at 50°C and 100°C, quartzose arenite showed largest sorption capacity among the other samples in higher pressures (>10 MPa). Furthermore, comparison with model prediction based on the pore filling model, which assumed that CO2 acts as filling pore spaces of the rocks and minerals, suggested the importance of the sorption mechanism in the CO2 geological storage in addition to the pore-filling mechanism. The present results should be pointed out that the sorption characteristics may have significant and meaningful effect on the assessment of CO2 storage capacity in geological media. 展开更多
关键词 Sorption Characteristics Rocks Minerals Storing CO2 Processes CO2 Geological Storage
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Storing and Searching Metadata for Digital Broadcasting on Set-Top Box Environments 认领 引用
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作者 Jong-Hyun Park Ji-Hoon Kang 《Journal of Software Engineering and Applications》 2008年第1期26-32,共7页
Digital broadcasting is a novel paradigm for the next generation broadcasting. Its goal is to provide not only better quality of pictures but also a variety of services that is impossible in traditional airwaves broad... Digital broadcasting is a novel paradigm for the next generation broadcasting. Its goal is to provide not only better quality of pictures but also a variety of services that is impossible in traditional airwaves broadcasting. One of the important factors for this new broadcasting environment is the interoperability among broadcasting applications since the environment is distributed. Therefore the broadcasting metadata becomes increasingly important and one of the metadata standards for a digital broadcasting is TV-Anytime metadata. TV-Anytime metadata is defined using XML schema, so its instances are XML data. In order to fulfill interoperability, a standard query language is also required and XQuery is a natural choice. There are some researches for dealing with broadcasting metadata. In our previous study, we have proposed the method for efficiently managing the broadcasting metadata in a service provider. However, the environment of a Set-Top Box for digital broadcasting is limited such as low-cost and low-setting. Therefore there are some considerations to apply general approaches for managing the metadata into the Set-Top Box. This paper proposes a method for efficiently managing the broadcasting metadata based on the Set-Top Box and a prototype of metadata management system for evaluating our method. Our system consists of a storage engine to store the metadata and an XQuery engine to search the stored metadata and uses special index for storing and searching. Our two engines are designed independently with hardware platform therefore these engines can be used in any low-cost applications to manage broadcasting metadata. 展开更多
关键词 Digital Broadcasting Metadata Management Storing and Searching XML Data XQuery Processing TV-Anytime metadata Set-Top Box
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Spatial transcriptomic characterization of the pathologic niche in a patient with pulmonary crystal-storing histiocytosis 认领 引用
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作者 Yao Chen Zhining Huang +5 位作者 Gaoxiang Wang Mingsheng Wu Xiao Chen Xiaohui Sun Lei Gao Mingran Xie 《Genes & Diseases》 SCIE CSCD 2026年第3期49-52,共4页
Crystal-storing histiocytosis(CSH)is a rare disease characterized by an accumulation of crystalline inclusions in the cytoplasm of histiocytes.These inclusions are derived from monoclonal immunoglobulin(lg)deposition.... Crystal-storing histiocytosis(CSH)is a rare disease characterized by an accumulation of crystalline inclusions in the cytoplasm of histiocytes.These inclusions are derived from monoclonal immunoglobulin(lg)deposition.1 The most frequently affected organs are the bone marrow and kidney;the lung is also an affected organ due to an imaging feature identical to that of lung cancer.CSH is usually an indirect sign of malignant diseases.As a result,most patients are concurrently diagnosed with neoplastic diseases such as multiple myeloma.Therefore,more in-depth investigations are urgently required to clarify the underlying mechanisms of CSH.The histological characterizations of CSH have been defined;however,the cellular and molecular features of CSH remain unclear. 展开更多
关键词 pathologic niche monoclonal immunoglobulin monoclonal immunoglobulin lg deposition neoplastic diseases su crystalline inclusions pulmonary crystal storing histiocytosis spatial transcriptomics bone marrow
Key-Value Store Coupled with an Operating System for Storing Large-Scale Values 认领 引用
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作者 Jeonghwan Im Hyuk-Yoon Kwon 《Computers, Materials & Continua》 SCIE EI 2022年第11期3333-3350,共18页
The key-value store can provide flexibility of data types because it does not need to specify the data types to be stored in advance and can store any types of data as the value of the key-value pair.Various types of ... The key-value store can provide flexibility of data types because it does not need to specify the data types to be stored in advance and can store any types of data as the value of the key-value pair.Various types of studies have been conducted to improve the performance of the key-value store while maintaining its flexibility.However,the research efforts storing the large-scale values such as multimedia data files(e.g.,images or videos)in the key-value store were limited.In this study,we propose a new key-value store,WR-Store++aiming to store the large-scale values stably.Specifically,it provides a new design of separating data and index by working with the built-in data structure of the Windows operating system and the file system.The utilization of the built-in data structure of the Windows operating system achieves the efficiency of the key-value store and that of the file system extends the limited space of the storage significantly.We also present chunk-based memory management and parallel processing of WR-Store++to further improve its performance in the GET operation.Through the experiments,we show that WR-Store++can store at least 32.74 times larger datasets than the existing baseline key-value store,WR-Store,which has the limitation in storing large-scale data sets.Furthermore,in terms of processing efficiency,we show that WR-Store++outperforms not only WR-Store but also the other state-ofthe-art key-value stores,LevelDB,RocksDB,and BerkeleyDB,for individual key-value operations and mixed workloads. 展开更多
关键词 Key-value stores large-scale values chunk-based memory management parallel processing
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Research on Solar Cell with Storing Solar Energy Film 认领 引用 被引量：2
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作者 李宝骏 赵阳春 +3 位作者 杨淘 祝金兰 高飞 付希亮 《Journal of Rare Earths》 SCIE EI CAS 2005年第S1期228-230,共3页
Solar cell is an effective apparatus which can transform solar energy into electrical energy. However, the main problem is the low density and discontinuity of solar energy at present. The solar cell with a layer of r... Solar cell is an effective apparatus which can transform solar energy into electrical energy. However, the main problem is the low density and discontinuity of solar energy at present. The solar cell with a layer of rare earth film can absorb incidence sunlight and enhance the energy density of solar energy. The rare earth film can absorb solar energy and bear high temperature of 300～450 ℃. Moreover, in rainy days or at night, the film radiates the solar energy it stored in 8～12 h, so that the solar cell can work continuously, which remarkably enhanced the efficiency of solar cell. 展开更多
关键词 solar energy cell storing energy solar energy film rare earths
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Claude Bernard’s concept of sugar metabolism in the liver 认领 引用
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作者 Thomas M.van Gulik 《Hepatobiliary Surgery and Nutrition》 SCIE 2026年第1期1-2,共2页
The connection between hepatobiliary surgery and nutrition comprises the liver’s metabolic function of converting dietary nutrients into usable energy through complex biochemical pathways.The liver serves as the prin... The connection between hepatobiliary surgery and nutrition comprises the liver’s metabolic function of converting dietary nutrients into usable energy through complex biochemical pathways.The liver serves as the principal regulator of blood glucose homeostasis by converting stored glycogen into glucose.In doing so,it provides a metabolic buffer that maintains a stable internal environment for the production and controlled release of glucose into the blood,a process governed by coordinated hormonal signaling.The frailty of this regulatory system in sustaining vital functions becomes strikingly apparent when a critical mass of liver parenchyma is surgically removed after extended hepatectomy. 展开更多
关键词 converting dietary nutrients usable energy converting stored glycogen sugar metabolism complex biochemical pathwaysthe hepatobiliary surgery coordinated hormonal signalingt metabolic buffer blood glucose homeostasis
Stopping and storing light pulses within a fiber optic ring resonator 认领 引用 被引量：1
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作者 F.H.Suhailin J.Ali +3 位作者 P.P.Yupapin Y.Fujii H.Ahmad S.W.Harun 《Chinese Optics Letters》 SCIE EI CAS 2009年第9期778-780,共3页
A simple all optical system for stopping and storing light pulses is demonstrated. The system consists of an erbium-doped fiber amplifier （EDFA）, a semiconductor optical amplifier （SOA）, and a fiber ring resonator... A simple all optical system for stopping and storing light pulses is demonstrated. The system consists of an erbium-doped fiber amplifier （EDFA）, a semiconductor optical amplifier （SOA）, and a fiber ring resonator. The results show that the multisoliton generation with a free spectrum range of 2.4 nm and a pulse spectral width of 0.96 nm is achieved. The memory time of 15 min and the maximum soliton output power of 5.94 dBm are noted, respectively. This means that light pulses can be trapped, i.e., stopped optically within the fiber ring resonator. 展开更多
关键词 ring In Stopping and storing light pulses within a fiber optic ring resonator EDFA
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Fluid-assisted grain refinement interlacing dislocation networks in high-performance iron-based superconductors 认领 引用
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作者 Chang Tu Chiheng Dong +7 位作者 Meng Han Caida Fu Minghui Tang He Huang Chao Yao Dongliang Wang Xianping Zhang Yanwei Ma 《Journal of Materiomics》 SCIE EI CSCD 2026年第5期142-153,共12页
Achieving high critical current density in practical superconductors for high-field applications requires well-connected fine grains decorated with nano-scale crystalline defects to immobilize magnetic vortices.In com... Achieving high critical current density in practical superconductors for high-field applications requires well-connected fine grains decorated with nano-scale crystalline defects to immobilize magnetic vortices.In compounds with rigid crystal lattices,however,grain refinement is usually accompanied by the release of stored strain energy rather than the retention of defects.Here,we demonstrate a scalable fluid-assisted milling strategy to produce high-purity Ba1–xKxFe2As2 precursor powders with uniform grains.Unlike dry milling that induces catastrophic fracture through breaking Fe–As covalent bonds,the liquid medium buffers impact energy and promotes shear-dominated deformation.This shear-dominated process selectively disrupts the weaker Ba–As ionic bonds,inducing a concerted lattice twist around the[001]axis and triggering the self-organization of interwoven screw dislocation networks.The dislocations with a density 2–4 orders of magnitude higher than those in conventional ceramics serve as strong pinning centers for magnetic vortices.Together with better grain connectivity and texture,the tapes fabricated from optimally milled powders exhibit a 50%enhancement in critical current density,reaching 1.45×105A/cm2at 4.2 K and 10 T.Our results establish fluid-assisted milling as a practical route to synergistically refine grains and construct strong pinning landscapes,offering a scalable pathway to high-performance iron-based superconductors. 展开更多
关键词 release stored strain energy ba xkxfe precursor powders interlacing dislocation networks immobilize magnetic vorticesin crystal latticeshowevergrain fine grains high performance iron based superconductors fluid assisted grain refinement
A new digital information storing and reading system based on synthetic DNA 认领 引用 被引量：1
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作者 Yunpeng Zhong Shanshan Qi +4 位作者 Fuxu Sheng Jingjing Tian Peihuang Zhu Ping Yang Xiaohui Cai 《Science China(Life Sciences)》 SCIE CAS CSCD 2018年第6期733-735,共3页
Dear Editor,In the＂big data era＂,the amount of digital information is growing explosively,therefore,a reliable data storage medium for large-scale digital archiving is urgently needed.However,the increase of existin... Dear Editor,In the＂big data era＂,the amount of digital information is growing explosively,therefore,a reliable data storage medium for large-scale digital archiving is urgently needed.However,the increase of existing storage capacity cannot keep up with the growth of digital information.Moreover,the durability of conventional storage teclanologles, sucn as magnetic and optical devices, is very limited. Since the first demonstration of using DNA to store messages in 1988, DNA has been considered as a promising data storage medium due to its high-density and long-term stability （half-life〉500years） （Allentoft et al., 2012）. 展开更多
关键词 A new digital information storing and reading system based on synthetic DNA Figure length
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PROTEIN-STORING CELLS IN SECONDARY PHLOEM OF Hevea brasiliensis 认领 引用 被引量：2
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作者 吴继林 郝秉中 《Chinese Science Bulletin》 1987年第2期118-121,共4页
Compounds containing nitrogen stored in bark play a significant role in the growth of trees, especially of deciduous trees. Many physiological and biochemical studies have been made in regard to the composition accumu... Compounds containing nitrogen stored in bark play a significant role in the growth of trees, especially of deciduous trees. Many physiological and biochemical studies have been made in regard to the composition accumulation and mobilization of the nitrogen compounds in bark, but report on the cytological aspect has scarcely been seen. This brief report deals with the protein-storing cells we found in the secondary phloem of Hevea brasiliensis stem. 展开更多
关键词 Hevea mobilization physiological storing biochemical stored brief deals lieve fibre
Statistical analysis of store release from a weapon bay at transonic Mach number 认领 引用
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作者 David Bacci Alistair J.Saddington 《Defence Technology（防务技术）》 SCIE EI CAS CSCD 2026年第6期64-78,共15页
Numerical analysis was conducted on the release of an air-to-air missile model from a rectangular cavity geometry,having a length-to-depth ratio of 4.5 and a width-to-depth ratio of 1.Computational Fluid Dynamics was ... Numerical analysis was conducted on the release of an air-to-air missile model from a rectangular cavity geometry,having a length-to-depth ratio of 4.5 and a width-to-depth ratio of 1.Computational Fluid Dynamics was coupled with a 6-degrees-of-freedom solver using the Stress-Blending-Eddy-Simulation turbulence model to calculate the store trajectory.The release procedure was performed at a freestream Mach number of 0.9.The study aimed to correlate cavity aero-acoustic data with missile flight,comparing flow resonant modes with store trajectory evolution.The store was released at 30 different intervals during the evolution of the flow within the cavity,to encompass the effects on trajectory dispersion due to the intrinsic unsteady nature of the flow field.Correlation analysis,based on the Hilbert-Huang transform,evidenced a direct effect of flow-field resonant modes on the weapon's roll rate and final roll angle. 展开更多
关键词 Weapons bay Cavity flow Store release
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Confined proton transport in water-containing layered manganese oxide electrodes 认领 引用 被引量：1
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作者 Wenwei Cai Feng Pan Shunning Li 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2025年第5期15-18,共4页
Understanding the proton dynamic behavior in inorganic materials has long been a topic of intense fascination[1],especially in the field of electrochemical energy storage[2].One of the examples is the research of prot... Understanding the proton dynamic behavior in inorganic materials has long been a topic of intense fascination[1],especially in the field of electrochemical energy storage[2].One of the examples is the research of proton transport in transition metal oxides,which dates back to 1971[3]when RuO2 was discovered to be capable of storing protons via reversible redox reactions[4].In aqueous electrolytes,the thin film RuO2 electrode exhibits a surface pseudocapacitive behavior[5],which could be modified by the structural water in its hydrated form due to the facile Grotthuss hopping mode of protons along the established hydrogen bonds inside the bulk phase[6].Soon later,Goodenough et al.reported the capacitor-like behavior of amorphous MnO2·xH2O electrode in an aqueous KCl electrolyte[7],and further studies on the hydrated MnO2 electrodes prepared by sol-gel processes have soon discovered that the intercalation of protons from aqueous electrolytes plays an indispensable role in the charge storage mechanism[8].In recent years,the research interest on rechargeable aqueous batteries has fueled the renaissance of mechanistic study of proton transport in transition metal oxides[9],which can operate as cathodes or anodes via a topotactic insertion mechanism similar to that in Li-ion batteries[10].However,due to the challenges for experimental detection of local chemical environments of the inserted protons,a comprehensive understanding of proton dynamic behavior in these electrodes remains largely lacking. 展开更多
关键词 transition metal oxideswhich storing protons inorganic materials thin film ruo proton transport reversible redox reactions understanding proton dynamic behavior electrochemical energy storage one
Financial Performance Analysis of New Tea Industry:Taking Naixue Tea as an Example 认领 引用
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作者 Xueying Jiao 《Proceedings of Business and Economic Studies》 2026年第6期169-178,共10页
The new tea industry relies on offline stores to achieve large-scale development,which has three typical characteristics:store-driven,high-frequency and low customer orders,and a sensitive supply chain.The financial p... The new tea industry relies on offline stores to achieve large-scale development,which has three typical characteristics:store-driven,high-frequency and low customer orders,and a sensitive supply chain.The financial performance evaluation system is obviously different from the traditional catering and Internet industries.Taking Naixue(NaiSnow),a Hong Kong-listed company,as a case study,combined with the annual report of the company from 2023 to 2024 and the public data of the industry,this paper constructs a financial performance evaluation index system suitable for the new tea industry from three dimensions:profitability,operational efficiency and growth ability,focusing on the core indicators such as the same-store sales growth rate,gross profit margin,store expansion speed and single-store profit model.The research shows that in 2024,due to the weak consumer market,intensified industry competition,fluctuations in raw material prices,and other factors,Naixue’s tea performance declined in a short period of time;In the first half of 2025,enterprises achieved a recovery in performance by shutting down inefficient stores,adjusting product structure,and promoting refined operations.At this stage,the new tea industry has bid farewell to extensive scale expansion and officially entered the development stage of improving quality and efficiency.The profitability of a single store,the ability of supply chain management and control,and the repurchase rate of users will become the core competitive factors of the enterprise. 展开更多
关键词 New tea Financial performance Naixue tea Store operation Delicacy management
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Assu走在一条刚刚出现的路上 认领 引用
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作者 Jade 《电子竞技》 2026年第7期24-29,共6页
晚上8点左右,Assu结束在Apple Store的8小时的工作回到家。她尽快换好衣服、吃完晚饭,便坐到手机前等待队友上线。在持续两三个小时的训练赛后,等她躺到床上时,已经是午夜。Assu还在大学学习面向经济与商业的语言文化专业。第二天她要... 晚上8点左右,Assu结束在Apple Store的8小时的工作回到家。她尽快换好衣服、吃完晚饭,便坐到手机前等待队友上线。在持续两三个小时的训练赛后,等她躺到床上时,已经是午夜。Assu还在大学学习面向经济与商业的语言文化专业。第二天她要继续上课、上班,赶上考试季,还要把训练塞进学业和工作之间变得更小的夹缝中。过去两个月里,这样的生活几乎每天都在重复。 展开更多
关键词 Apple Store 训练赛 Assu 语言文化专业
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A Different Kind of Gold Rush Chinese retail and wholesale chains are creating jobs and supporting local enterprise across South Africa 认领 引用
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作者 DERRICK SILIMINA 《ChinAfrica》 2026年第7期42-43,共2页
As the sun rises over the Johannesburg skyline,a steady stream of young South Africans files into Chinese chain stores to begin the day’s work.For Sbulele Nyati,China Mart is more than a workplace.Every box he unpack... As the sun rises over the Johannesburg skyline,a steady stream of young South Africans files into Chinese chain stores to begin the day’s work.For Sbulele Nyati,China Mart is more than a workplace.Every box he unpacks represents school fees for his daughter and groceries he will carry home on payday.“Whenever I go to work,I open the doors to a better life for my family.I am genuinely excited to have this opportunity,”Nyati told ChinAfrica. 展开更多
关键词 china mart school fees gold rush jobs retail chains local enterprise chinese chain stores wholesale chains
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A MSSBAUER EFFECT STUDY ON THE HYDROGEN STORING MATERIAL IN LaFe0.9Ni4.1 H_x 认领 引用
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作者 戴守愚 王忠铨 《Chinese Science Bulletin》 1985年第6期731-735,共5页
The hydrogen storing material LaFeNi4 has been studied extensively. We also obtained some nice results using different activation techniques and did some Mssbauer effect measurements on the material. Though a Ni sourc... The hydrogen storing material LaFeNi4 has been studied extensively. We also obtained some nice results using different activation techniques and did some Mssbauer effect measurements on the material. Though a Ni source was used in 展开更多
关键词 storing sponge coexistence resultant A M H_x Ni split fitted magnet
“苹果税”反竞争性研究:根源、表现及治理进路 认领 引用 被引量：2
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作者 张海汝 李勇坚 蒋艳 《企业经济》 CSSCI 北大核心 2025年第2期59-68,共10页
应用商店作为典型的数字平台,成为应用软件分发行业的“守门人”,对应用软件开发者收取“抽成”已成为应用商店行业普遍现象。目前,以“苹果税”为代表的“抽成”行为已对应用软件行业的发展产生了不良影响,引发了世界各国的诉讼和监管... 应用商店作为典型的数字平台,成为应用软件分发行业的“守门人”,对应用软件开发者收取“抽成”已成为应用商店行业普遍现象。目前,以“苹果税”为代表的“抽成”行为已对应用软件行业的发展产生了不良影响,引发了世界各国的诉讼和监管行动。我国作为全球“苹果税”比例最高的地区,对以“苹果税”为代表的应用商店平台“抽成”行为的监管还相对滞后,制约了我国应用软件行业的健康有序发展。对此,本文针对App Store“苹果税”的形成根源与具体表现进行分析,在借鉴世界各国监管规制App Store“苹果税”行为实践经验的基础上,针对我国“苹果税”与类似“抽成”行为的现实情况,提出治理我国应用软件分发平台抽成行为的对策建议。 展开更多
关键词 App Store “苹果税” 应用商店 抽成行为
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Development of strong Goss texture in ultra-thin high silicon steel with excellent magnetic properties fabricated by two-stage rolling 认领 引用 被引量：1
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作者 Xu Ning Yongfeng Liang +4 位作者 Chenyang Zhang Zhen Wang Yanli Wang Feng Ye Junpin Lin 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2025年第7期1595-1606,共12页
Theorientation of the Goss texture aligned with the rolling direction is the most easily magnetized direction,effectively enhancing the magnetic properties of non-oriented silicon steel.In the present study,an ultra-t... Theorientation of the Goss texture aligned with the rolling direction is the most easily magnetized direction,effectively enhancing the magnetic properties of non-oriented silicon steel.In the present study,an ultra-thin high-silicon sheet of 0.2 mm with a strong Goss texture was successfully fabricated using a two-stage rolling method,achieving superior magnetic properties.The combination of suitable primary rolling reduction and intermediate annealing proved beneficial in promoting the formation of Goss texture.Electron back scatter diffraction(EBSD)was used to characterize micro-shear bands within deformed grains of secondary rolled sheets.Observations revealed that the recrystallized Goss nucleus originated from the Goss substructure of shear bands within deformed{111}grains during the initial stages of recrystallization.The influence of stored energy and grain size on texture evolution was thoroughly investigated using quasi-in situ EBSD during recrystallization.In the initial stages,large deformed{111}and near{111}grains with high stored energy facilitated nucleation and growth of Goss and near-Goss grains within shear bands and reduced grain boundary nucleation.In the later stages,large deformed grains with low stored energy underwent a strain-induced grain boundary migration mechanism to nucleate.During the recrystallization,many recrystallized Goss and near-Goss grains clustered together,with Goss grains rotating towards near-Goss orientation.The resulting annealed ultra-thin 0.2 mm sheet with a pronounced Goss texture exhibited superior magnetic properties. 展开更多
关键词 non-oriented silicon steel electron back scatter diffraction Goss texture stored energy shear bands magnetic properties
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A Secure Storage and Verification Framework Based on Consortium Blockchain for Engineering Education Accreditation Data 认领 引用 被引量：1
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作者 Yuling Luo Xiaoguang Lin +4 位作者 Junxiu Liu Qiang Fu Sheng Qin Zhen Min Tinghua Hu 《Computers, Materials & Continua》 SCIE EI 2025年第6期5323-5343,共21页
The majors accredited by the Engineering Education Accreditation(EEA)reflect the accreditation agency’s recognition of the school’s engineering programs.Excellent accreditation management holds significant importanc... The majors accredited by the Engineering Education Accreditation(EEA)reflect the accreditation agency’s recognition of the school’s engineering programs.Excellent accreditation management holds significant importance for the advancement of engineering education programs.However,the traditional engineering education system framework suffers from the opacity of raw education data and the difficulty for accreditation bodies to forensically examine the self-assessment reports.To solve these issues,an EEA framework based on Hyperledger Fabric blockchain technology is proposed in this work.Firstly,all relevant stakeholders and information interactions occur within the blockchain network,ensuring the authenticity of educational data and enhancing the transparency of accreditation processes.Secondly,multiple roles are abstracted into a single organization to optimize the network topology.The original data is stored off-chain,and the hash values of the data are stored on-chain to reduce on-chain storage costs.The experimental results show that the proposed framework has a high throughput and the network latency of writing data to the blockchain is reduced by at least 0.04 s.It effectively improves network performance and security,which provides new insights for EEA management. 展开更多
关键词 Blockchain engineering education accreditation hyperledger fabric distributed store
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Cryogenic forging effects and mechanisms on surface coarse grain microstructure in H-shaped 7050 aluminum forgings 认领 引用
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作者 ZHAO Zi-han YI You-ping +2 位作者 HU Jian-liang HUANG Shi-quan HE Hai-lin 《Journal of Central South University》 SCIE EI CAS CSCD 2025年第6期2009-2021,共13页
This study investigates the differences in microstructural control between cryogenic forging combined with pre-deformation(PCF)and traditional thermal forging(TTF)for 7050 aluminum forgings intended for aerospace appl... This study investigates the differences in microstructural control between cryogenic forging combined with pre-deformation(PCF)and traditional thermal forging(TTF)for 7050 aluminum forgings intended for aerospace applications.The PCF process,utilizing cryogenic deformation,significantly refines the coarse grains at the surface of the forgings,resulting in a finer and more uniform microstructure,thereby effectively addressing the issue of surface coarse grains associated with traditional methods.The findings indicate that the PCF process can accumulate higher stored energy,facilitating static recrystallization(SRX)during subsequent heat treatment and enhancing the microstructural uniformity.Utilizing various analytical techniques,including optical microscopy(OM),electron backscatter diffraction(EBSD),and transmission electron microscopy(TEM).This study reveals the superiority of the PCF process in terms of strain accumulation,dislocation density,and grain refinement.In conclusion,this method offers advantages in enhancing the performance and microstructural uniformity of 7050 aluminum forgings,presenting new opportunities for applications in the aluminum forging industry. 展开更多
关键词 7050 aluminum alloy cryogenic forging coarse grains dislocation density stored energy
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