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Vietnam: Workweek cut to 40 hours, orders flow back to China 认领 引用
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作者 Qiu Shuchen 《China Textile》 2026年第4期38-38,共1页
A recent proposal to reduce working hours in Vietnam has drawn strong attention across Southeast Asia and the global manufacturing sector.For the textile and garment industry which has deep operations in Vietnam,this ... A recent proposal to reduce working hours in Vietnam has drawn strong attention across Southeast Asia and the global manufacturing sector.For the textile and garment industry which has deep operations in Vietnam,this could mean a sudden rise in costs and possibly the start of a major reshuffle in global supply chains.The biggest change in thirty years:from 48 hours to 40 hours In early June 2026,the Vietnam General Confederation of Labour officially submitted a revised proposal for the Labour Law to the government. 展开更多
关键词 manufacturing labour law supply chain working hours reduce working hours textile industry Vietnam garment industry
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On Answering the Question Related to the Legal Regulation of Working Hours in the New Era:Western Experience and Chinese Approach 认领 引用
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作者 曹燕 XU Chao 《The Journal of Human Rights》 2023年第1期157-181,共25页
The popularity of flexible working hours around the world has slowed down the historical trend of reducing working hours.It even shows signs of regression.Whether and how to guide the cur-rent society with flexible wo... The popularity of flexible working hours around the world has slowed down the historical trend of reducing working hours.It even shows signs of regression.Whether and how to guide the cur-rent society with flexible working hours to return to the historical track of reducing working hours,improve the quality of working hours,and promote a smooth transition from the era of traditional standard work-ing hours to the era of flexible working hours has become a question related to the legal regulation of working hours in the new era.In this regard,although Western countries have proposed new regulatory concepts and carried out legislative practices with distinctive charac-teristics,the limitations of legal regulation capabilities have prevented them from proposing a package of institutional solutions.The advan-tage of China in the ability of legal regulation of working hours has been gradually formed in the legislation on working hours unnder the leadership of the CPC in the past century.It enables China to break through the limitations of the West and propose a Chinese approach to answer the question of the legal regulation of working hours in the new era from three aspects:limiting the extension of working hours,improving the quality of flexible working hours,and optimizing the funnctions of the multi-funnctional regulatory system for working hours. 展开更多
关键词 question related to the legal regulation of working hours in the new era flexible working hours Chinese approach decent working hours quality of working hours working hours capability balanced working hours
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Accumulated chilling hours during endodormancy impact blooming and fruit shape development in peach(Prunus persica L.) 认领 引用 被引量：8
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作者 LI Yong FANG Wei-chao +4 位作者 ZHU Geng-rui CAO Ke CHEN Chang-wen WANG Xin-wei WANG Li-rong 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2016年第6期1267-1274,共8页
Winter chill is essential for the growth and development of deciduous species. To understand the relationship between accumulated chilling hours during endodormancy and blooming and fruit shape development, we control... Winter chill is essential for the growth and development of deciduous species. To understand the relationship between accumulated chilling hours during endodormancy and blooming and fruit shape development, we controlled chilling hours and investigated their effects on blooming date and fruit shape of peaches. The results showed that the number of days to full bloom date and the heat requirement for blooming were negatively correlated with accumulated chilling hours. Accumulated chilling hours were significantly negatively correlated with fruit shape index and fruit tip lengths, suggesting that the number of chilling hours affect the fruit shape development. Fewer accumulated chilling hours may be the major reason for longer fruit shape and protruding fruit tips. In conclusion, our results indicate specifically that decreased winter chilling hours can delay the bloom date and may lead to aberrant fruit shape development in peaches. Our study provides preliminary insights into the response of temperate fruit species to global climate change. 展开更多
关键词 accumulated chilling hours blooming fruit shape endodormancy Prunus persica
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台湾地区高校Office Hours制度实践及其借鉴 认领 引用 被引量：4
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作者 洪恩强 胡天佑 杨广晖 《福建师范大学学报（哲学社会科学版）》 CSSCI 北大核心 2010年第4期51-55,75,共5页
20世纪90年代我国台湾地区高等教育迈入大众化发展阶段,为应对同时出现的教学质量开始下降的趋势,在台湾教育行政部门和教育评鉴机构的推动下,Office Hours制度被普遍应用于台湾地区高校的教学与管理之中。从实践来看,它已成为增进师生... 20世纪90年代我国台湾地区高等教育迈入大众化发展阶段,为应对同时出现的教学质量开始下降的趋势,在台湾教育行政部门和教育评鉴机构的推动下,Office Hours制度被普遍应用于台湾地区高校的教学与管理之中。从实践来看,它已成为增进师生良性互动、激发学习动机、强化学习成效、提升教学质量与育人效果的有效机制。文章分析了Office Hours制度的实施背景,介绍了Office Hours制度的具体实践,在总结Office Hours制度特点的同时探讨了其对大陆高校的有益启示。 展开更多
关键词 高校 Office Hours 制度借鉴 台湾地区
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Office Hours制度探微 认领 引用 被引量：4
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作者 洪恩强 胡天佑 《职业技术教育》 北大核心 2011年第23期89-91,共3页
Office Hours是北美地区高等学校师生交往互动的主要模式之一,也是教职人员普遍使用的一种教学工具,是师生课外交往以及学生学习经历中不可或缺的重要组成部分。依据不同的标准可以划分为开放和限制、ROH和VOH等类型。Office Hours制度... Office Hours是北美地区高等学校师生交往互动的主要模式之一,也是教职人员普遍使用的一种教学工具,是师生课外交往以及学生学习经历中不可或缺的重要组成部分。依据不同的标准可以划分为开放和限制、ROH和VOH等类型。Office Hours制度对构建和谐师生关系,提升教学品质与学习成效,创新教育的实施和创新型人才的培养,具有一定借鉴和启示。 展开更多
关键词 师生互动 Office Hours 课外交往 师生交往制度
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Office Hours制度在国内高校本土化实践探索 认领 引用 被引量：2
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作者 姜凯译 徐淑艳 郑权 《山西建筑》 2019年第19期160-162,共3页
Office Hours制度是目前欧美高等院校广泛应用且已规范化的教育教学手段。该制度充分体现了以学生为本的教育理念,是实现国内高校大力提倡开展个性化教育,培养创新型人才的行之有效的方法之一。然而该制度在国内大部分高校,未得到充分... Office Hours制度是目前欧美高等院校广泛应用且已规范化的教育教学手段。该制度充分体现了以学生为本的教育理念,是实现国内高校大力提倡开展个性化教育,培养创新型人才的行之有效的方法之一。然而该制度在国内大部分高校,未得到充分的了解和足够的重视。通过介绍Office Hours制度的基本内涵及其优势,分析新时代高等教育对于该制度的迫切需求,对于该制度在国内高校的实践提出了具体的对策,也从学生的角度对如何高效利用Office Hours提出了相应建议。 展开更多
关键词 教育制度 Office Hours 师生互动
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OPTIMIZATION OF AIRPORT TAXIING PLANNING DURING CONGESTED HOURS BASED ON IMMUNE CLONAL SELECTION ALGORITHM 认领 引用 被引量：1
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作者 柳青 吴桐水 宋祥波 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2012年第3期294-301,共8页
In order to ease congestion and ground delays in major hub airports, an aircraft taxiing scheduling optimization model is proposed with schedule time as the object function. In the new model, the idea of a classical j... In order to ease congestion and ground delays in major hub airports, an aircraft taxiing scheduling optimization model is proposed with schedule time as the object function. In the new model, the idea of a classical job shop-schedule problem is adopted and three types of special aircraft-taxi conflicts are considered in the constraints. To solve such nondeterministic polynomial time-complex problems, the immune clonal selection algorithm（ICSA） is introduced. The simulation results in a congested hour of Beijing Capital International Airport show that, compared with the first-come-first-served（FCFS） strategy, the optimization-planning strategy reduces the total scheduling time by 13.6 min and the taxiing time per aircraft by 45.3 s, which improves the capacity of the runway and the efficiency of airport operations. 展开更多
关键词 aircraft taxiing schedule airport operation control hub airport congested hours immune clonal selection algorithm（ICSA）
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Legislation to Regulate the Working Hours and Labor Intensity of Practitioners in the Platform Economy 认领 引用 被引量：1
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作者 赵红梅 JIANG Yu 《The Journal of Human Rights》 2021年第6期960-984,共25页
Under the employment model of online car-hailing platforms,the extension of working hours and increase of labor intensity for practitioners are driven by the orders from these platform companies and labor-related thir... Under the employment model of online car-hailing platforms,the extension of working hours and increase of labor intensity for practitioners are driven by the orders from these platform companies and labor-related third parties.Also,they are more attributable to the internal driving force of practitioners themselves who hope to have more orders and earn more.It is impossible to apply the regulation system of the existing labor law to protect the rights and interests of employees in terms of working hours and labor intensity.The author suggests that the state should make special labor legislation to make the following targeted provisions:Online car-hailing platform companies and labor-related third parties that implement labor management and control over practitioners shall,on the premise of abiding by labor standards and industry rules,set various reasonable indicators of working hours and labor intensity through rules and take effective technical measures to control these two dimensions,so that practitioners can avoid serious overwork.Besides,by encouraging the provision of certain convenience for practitioners to take intermittent breaks,jointly building a compatibility system for different online car-hailing platforms,and establishing relevant operating rules,we can restrain practitioners from being seriously overworked.This is actually a multi-cooperative boosting legislative regulation approach. 展开更多
关键词 online car-hailing platform practitioners working hours labor intensity legislative regulation
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美国高校OfficeHours制度及其启示 认领 引用
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作者 洪恩强 胡天佑 蒋月如 《西南教育论丛》 2011年第2期33-36,共4页
OfficeHours是美国高等学校师生交往互动的主要模式之一，是教职人员普遍使用的一种教学工具，也是师生外交往以及学生学习经历中不可或缺的重要组成部分。美国高校OfficeHours制度对我国高等教育的启示：全力为学生发展服务：重视师生... OfficeHours是美国高等学校师生交往互动的主要模式之一，是教职人员普遍使用的一种教学工具，也是师生外交往以及学生学习经历中不可或缺的重要组成部分。美国高校OfficeHours制度对我国高等教育的启示：全力为学生发展服务：重视师生课外交往；创造制度化的师生交往空间；形成合力辅导的文化氛围。 展开更多
关键词 美国高校 Office Hours 课外交往 师生交往制度
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通过“Office Hours”课外辅导制度提升学生体质的实践尝试 认领 引用
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作者 朱伟莉 《当代体育科技》 2016年第36期132-133,135,共2页
该文通过基于"Office Hours"课外辅导制度,体育老师深入各个学系,组织和指导学生开展课余的各项体育活动,促进课外与课内的有效配合,激发学生参加体育运动的积极性,使学生从被动运动向主动运动转变,在校内形成学生乐于参与体... 该文通过基于"Office Hours"课外辅导制度,体育老师深入各个学系,组织和指导学生开展课余的各项体育活动,促进课外与课内的有效配合,激发学生参加体育运动的积极性,使学生从被动运动向主动运动转变,在校内形成学生乐于参与体育活动的良好氛围,从而真正提升学生体质,激发学生参与体育活动的积极性。 展开更多
关键词 “Office Hours”课外辅导 体质提升
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Analysis of Effective Working Hours of Automatic Assembly Equipment for Aircraft Assembly Stations 认领 引用 被引量：1
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作者 ZHOU Xianxin XIN Bo +1 位作者 GONG Yadong LI Chen 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2020年第6期903-913,共11页
To improve the accuracy of capacity analysis and prediction for the aircraft assembly stations,an approach for calculating the effective working hour(EWH)of automatic assembly equipment is introduced by using the dyna... To improve the accuracy of capacity analysis and prediction for the aircraft assembly stations,an approach for calculating the effective working hour(EWH)of automatic assembly equipment is introduced by using the dynamic mixed Weibull distribution(DMWD)model.Firstly,according to the features of aircraft assembling,a DMWD model considering the dynamic reliability of multiple subsystems and their synthetic effects on the whole equipment is established.A typical automatic drilling&riveting machine is selected as the research object,and the dynamic weights of reliability of three subsystems are modeled and solved.Subsequently the unknown parameters of the DMWD model are estimated based on maximum likelihood estimation(MLE)and Newton-Raphson method.Finally,the EWH of an automatic station is defined and modeled by using the solved dynamic reliability function.Based on the experimental study on a real automatic drilling&riveting machine from a wing panel assembly station,it is shown that the proposed DMWD and EWH models could effectively calculate the equipment reliability with full consideration of its multiple subsystems.The DMWD model is more suitable for improving the solution precision of EWH than the traditional three-parameter Weibull distribution. 展开更多
关键词 automatic assembly equipment effective working hours(EWH) Weibull distribution reliability
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Parental myopia, near work, hours of sleep and myopia in Chinese children 认领 引用 被引量：31
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作者 Yanhong Gong Xiulan Zhang +2 位作者 Donghua Tian Dafang Wang Gexing Xiao 《Health》 2014年第1期64-70,共7页
Background/Aims: Juvenile myopia is a serious problem in China, the prevalence of which stays at a high level and shows an upward trend. The target of this study was to explore the factors associated with myopia in Ch... Background/Aims: Juvenile myopia is a serious problem in China, the prevalence of which stays at a high level and shows an upward trend. The target of this study was to explore the factors associated with myopia in Chinese children. Methods: A cross-sectional analysis in a random sample survey was conducted in Beijing in 2008. The data collected from 15,316 Chinese school students aged 6 to 18 years, randomly selected from 19 schools were evaluated, including noncycloplegic refraction and possible genetic, environmental and behavioral factors, to explore the key risk factors for myopia. Univariate and multiple logistic regression analyses were performed to compare the OR values, and receiver operator characteristic (ROC) curves were generated to compare the differences among the areas under the ROC curves using the method of multiple comparison with the best. Results: Myopia was associated with shorter sleep times versus longer sleep times (adjusted OR = 3.37;95%CI 3.07-3.70), and the multivariate OR for two compared with no parents with myopic was 2.83 (95%CI 2.47-3.24) and 1.95 (95%CI 1.69-2.24) for reading or writing distances less than33 cmcompared to distances greater than33 cm. Controlling for other factors, children that slept for shorter periods of time had significantly more myopic refractions (?1.69D vs ?1.29D for children with longer sleeping time per day). Analysis of the areas under the ROC curves showed five variables with predictable values better than chance: age, sleeping time, reading or writing distance, hours of studying, and parental myopia. Conclusion: It was not surprising, as proved by other studies, that parental myopia, reading or writing distances, time spent on studying or other activities by using eyes were dominant risk factors associated with juvenile myopia. Our findings indicated that hours of sleeping were also closely related to juvenile myopia, in which the underlying mechanism should be explored in the future study. 展开更多
关键词 Parental Myopia Near Work Hours of Sleep Myopia
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Impact of trading hours extensions on foreign exchange volatility:intraday evidence from the Moscow exchange 认领 引用
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作者 Michael Frommel Eyup Kadioglu 《Financial Innovation》 2023年第1期2729-2751,共23页
Using transaction-level tick-by-tick data of same-and next-day settlement of the Russian Ruble versus the US Dollar exchange rate(RUB/USD)traded on the Moscow Exchange Market during the period 2005–2013,we analyze th... Using transaction-level tick-by-tick data of same-and next-day settlement of the Russian Ruble versus the US Dollar exchange rate(RUB/USD)traded on the Moscow Exchange Market during the period 2005–2013,we analyze the impact of trading hours extensions on volatility.During the sample period,the Moscow Exchange extended trading hours three times for the same-day settlement and two times for the next-day settlement of the RUB/USD rate.To analyze the effect of the implementations,various measures of historical and realized volatility are calculated for 5-and 15-min intraday intervals spanning a period of three months both prior to and following trading hours extensions.Besides historical volatility measures,we also examine volume and spread.We apply an autoregressive moving average-autoregressive conditional heteroscedasticity(ARMA-GARCH)model utilizing realized volatility and a trade classification rule to estimate the probability of informed trading.The extensions of trading hours cause a significant increase in both volatility and volume for further analyzing the reasons behind volatility changes.Volatility changes mostly occur after the opening of the market.The length of the extension has a significant positive effect on realized volatility.The results indicate that informed trading increased substantially after the opening for the rate of same-day settlement,whereas this is not observed for next-day settlement.Although trading hours extensions raise opportunities for more transactions and liquidity in foreign exchange markets,they may also lead to higher volatility in the market.Furthermore,this distortion is more significant at opening and midday.A potential explanation for the increased volatility mostly at the opening is that the trading hours extension attracts informed traders rather than liquidity providers. 展开更多
关键词 Volatility Trading hours extension Foreign exchange market Informed trading Volume Spread Market overlap Information flow
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The Impact of the Digital Economy on Rural Residents’Working Hours:Mechanisms and Empirical Evidence 认领 引用
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作者 Peng Su Li Jing Wang Jue 《Contemporary Social Sciences》 2024年第2期34-51,共18页
The rapid development of the digital economy has provided a new impetus for rural residents to extend their working hours.Based on the data collected by the China Labor-force Dynamics Survey(CLDS)in 2014,2016,and 2018... The rapid development of the digital economy has provided a new impetus for rural residents to extend their working hours.Based on the data collected by the China Labor-force Dynamics Survey(CLDS)in 2014,2016,and 2018,this paper measured the development level of the digital economy in China from the perspectives of internet development and digital financial inclusion,and tested the mechanisms of how the digital economy affected rural residents’working hours.The results showed that the digital economy extended rural residents’working hours by expanding information channels and enhancing human capital,and this mechanism was affected by heterogeneity in rural residents’educational background,age,and social capital.Building on these findings,this paper holds that to increase rural residents’income by extending their working hours and achieving common prosperity for all,it is necessary to expand the opportunities for rural residents to participate in skills training and promote their accumulation of human capital. 展开更多
关键词 digital economy rural residents’working hours information channels human capital
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County-Specific Chill Hours Accumulation in South Carolina 认领 引用 被引量：2
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作者 José O. Payero Udayakumar Sekaran 《Atmospheric and Climate Sciences》 2021年第3期508-519,共12页
Winter chilling is critical for most temperate fruits and perennial plants during the winter season. Most fruit and nut trees require a prolonged period of chilling to break their dormant stage and bloom when spring a... Winter chilling is critical for most temperate fruits and perennial plants during the winter season. Most fruit and nut trees require a prolonged period of chilling to break their dormant stage and bloom when spring arrives. This research’s primary objective was to calculate the chill hour’s accumulation in each county in South Carolina based on the historical hourly air temperature data for the last ten years (2010-2020). The chilling hours model used to calculate the daily chill hours was based on the number of hours when the air temperature was between 32&#176;F to 45&#176;F (0 to 7.2&#176;C). The total chill hours for each county were then determined by accumulating the daily chill hours from October to June. Our results showed that among the different counties in South Carolina, on average Laurens County had the most prolonged chill hours (1419 hrs). The chill hours were higher between November to March, and counties near the coastal regions had fewer chill hours than the counties in the inland areas. For example, Beaufort, Charleston, Berkeley, Horry, and Dorchester counties that are located near the coastal region had fewer chill hours. In contrast, counties located in the inland areas like Laurens, Chester, Lancaster, and York recorded the most prolonged chill hours. Our results suggest that selecting high chilling requirement crops for the inland areas and low chilling requirement crops for coastal areas would be appropriate. Farmers in South Carolina can use this information to plan their crop selection and management. 展开更多
关键词 Chill Hours Air Temperature South Carolina Coastal Area Dormancy
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Estimating the Monetary Value of Hours Lost to the Nigerian Public Healthcare System When Full-Time Government Employee Doctors Engage in Dual Practice 认领 引用 被引量：1
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作者 Bartholomew S. Eze Mari Jones Imani Silver Kyaruzi 《Health》 2023年第2期215-238,共24页
Background: Dual Practice (DP) allows full-time public sector doctors to concurrently offer the same clinical services in the private sector. The debate against this practice seems to be largely influenced by its pote... Background: Dual Practice (DP) allows full-time public sector doctors to concurrently offer the same clinical services in the private sector. The debate against this practice seems to be largely influenced by its potential to reduce the contracted hours in the public sector and shift attention to private work. Purpose: The purpose of this secondary research is to estimate the monetary value of hours lost to the Nigerian public healthcare system when full-time government employee doctors are engaged in private practice. It attempts to quantify the amount of resource outflow from the public system due to absences and lateness arising from competition for time between the public system’s contracted hours and private practice. Methods: Sensitivity analysis in Excel 2010 was used to calculate doctors’ hourly pay in the public sector using the 2015 Consolidated Medical Salary Structure for medical and dental officers in Nigeria’s federal public service. The parameters used for the calculation were the official 40-hour working week and the average monthly gross pay of doctors on different grade levels. Hypothetical scenarios of hours lost due to absences associated with DP were created. The value of different hypothetical hour losses by the percentage of doctors assumed to engage in dual practice across all doctor grade levels was then computed. Results: The estimated annual value of hours lost from dual practice to a single public tertiary care hospital was N4,851,754 or 15,855 USD (best case scenario) and N19,407,017 or 63,422 USD (worst case scenario) for the normal routine work and N1,800,133 or 5883 USD (best case scenario) and N3,600,266 or 11,766 USD (worst case scenario) for the on-call duty. Conclusion: The government may have been paying salaries for large volumes of work not rendered in the public sector. The overall financial impact of dual practice in the Nigerian public system might be negative. 展开更多
关键词 Dual Practice Hours Lost Nigeria Private Practice Public Healthcare Absences
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Correlation between level of serum prolactin and epileptic discharges of electroencephalogram from 24 to 36 hours after epileptic onset 认领 引用
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作者 Xiaowei Hu Wanli Dong Min Xu 《Neural Regeneration Research》 CAS 2006年第3期256-257,共2页
BACKGROUND： Researchers discovered that serum prolactin could rise following an epileptic seizure. The prolactin level might reach three times more than basic level within 30 minutes and decrease to the normal value ... BACKGROUND： Researchers discovered that serum prolactin could rise following an epileptic seizure. The prolactin level might reach three times more than basic level within 30 minutes and decrease to the normal value 2 hours after the seizure occurred. The mechanism might result in an increase of serum prolactin concentrations with the activation of the hypothalamic-pituitary axis. OBJECTIVE：To probe into the correlation between changes of serum prolactin and incidence of epileptic discharges of electroencephalogram （EEG） at 24-36 hours after epileptic onset of patients with secondary epilepsy. DESIGN ： Clinical observational study SEI-FING： Department of Neurology, First Hospital affiliated to Soochow University PARTICIPANTS： A total of 21 patients with secondary epilepsy were selected from the Department of Neurological Emergency or Hospital Room of the First Hospital affiliated to Soochow University from November 2005 to April 2006. There were 14 males and 7 females aged from 25 to 72 years. All patients met International League Anti-epileptic （ILAE） criteria in 1981 for secondary generalized tonic clonic seizure through CT or MRI and previous EEG. All patients were consent. Primary diseases included cerebral trauma （3 cases）, tumor （2 cases）, stroke （7 cases） and intracranial infeion （9 cases）. METHODS ： Venous blood of all patients was collected at 24-36 hours after epileptic onset. Serum prolactin kit （Beckman Coulter, Inc in USA） was used to measure value of serum prolactin according to kit instruction. Then, value of serum prolactin was compared with the normal value （male： 2.64-13.13 mg/L; female： 3.34- 26.72 mg/L）; meanwhile, EEG equipment （American Nicolet Incorporation） was used in this study. MAIN OUTCOME MEASURES ： ① Abnormal rate of serum prolactin of patients with secondary epilepsy; ②Comparison between normal and abnormal level of serum prolactin and incidence of EEG epileptic discharge of patients with secondary epilepsy. RESULTS：All 21 patients with secondary epilepsy were involved in the final analysis. ① Results of serum prolactin level： Among 21 patients with of secondary epilepsy, 10 of them had normal serum prolactin and 11 had abnormal one, and the abnormal rate was 52% （11/21）. ② Detecting results of EEG： EEG results showed that 6 cases were normal and 15 were abnormal, and the abnormal rate was 71% （15/21）. The symptoms were sharp wave, spike wave or sharp slow wave, spike slow wave of epileptic discharges in 8 cases, which was accounted for 38%. ③ Correlation between abnormality of serum prolactin and EEG epileptic wave： Eleven cases had abnormal serum prolactin, and the incidence was 64% （7/11）, which was higher of epileptic wave than that of non-epileptic wave [36% （4/11）, P 〈 0.05]; however, 10 cases had normal serum prolactin, and the incidence was 10% （1/10）. Epileptic wave was lower than non-epileptic wave [90% （9/10）, P 〈 0.01]. CONCLUSION ： The level of serum prolactin of patients with secondary epilepsy is abnormally increased at 24- 36 hours after epileptic onset; in addition, incidence of epileptic discharge is also increased remarkably. 展开更多
关键词 Correlation between level of serum prolactin and epileptic discharges of electroencephalogram from 24 to 36 hours after epileptic onset EEG
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Estimation of Global Solar Radiation for Four Selected Sites in Nepal Using Sunshine Hours, Temperature and Relative Humidity 认领 引用 被引量：1
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作者 Krishna R. Adhikari Binod K. Bhattarai Shekhar Gurung 《Journal of Power and Energy Engineering》 2013年第3期1-9,共9页
Rational and accurate solar energy databases, essential for designing, sizing and performing the solar energy systems in any part of the world, are not easily accessible in different localities of Nepal. In this study... Rational and accurate solar energy databases, essential for designing, sizing and performing the solar energy systems in any part of the world, are not easily accessible in different localities of Nepal. In this study, daily global solar radiation, sunshine hours and meteorological data for Biratnagar, Kathmandu, Pokhara and Jumla have been used to derive the regression constants. The linear regression technique has been used to develop a model for Biratnagar, Kathmandu, Pokhara and Jumla. The model has calculated the global solar radiation for these locations. The values of global solar radiation estimated by the model are found to be in close agreement with measured values of respective sites. The estimated values were compared with Angstrom-Prescott model and examined using the root mean square error (RMSE), mean bias error (MBE), mean percentage error (MPE), coefficient of regression (R), coefficient of determinant (R2) and correlation coefficient (CC) statistical techniques. Thus, the resultant correlations and linear regression relations may be then used for the locations of similar meteorological/geographical characteristics and also can be used to estimate the missing data of solar radiation for the respective site. 展开更多
关键词 Global Solar Radiation Clearness Index Sunshine Hours Linear Regression Relation Model
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Temperature Trends and Accumulation of Chill Hours, Chill Units, and Chill Portions in South Carolina 认领 引用 被引量：1
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作者 José O. Payero 《Atmospheric and Climate Sciences》 2024年第2期173-190,共18页
There is considerable concern about the potential impact of climate change on agriculture, such as the accumulation of chilling hours needed to break the dormancy of many perennial plants, like fruit trees. Therefore,... There is considerable concern about the potential impact of climate change on agriculture, such as the accumulation of chilling hours needed to break the dormancy of many perennial plants, like fruit trees. Therefore, this study aimed to determine if there had been a significant change in air temperatures and chill hours, chill units, and chill portion accumulation in South Carolina over the last two decades. Two decades of daily maximum (Tmax) and minimum (Tmin) air temperature records were obtained from weather stations in thirty-one counties in South Carolina. Hourly temperature data, reconstructed from the daily data, were used to calculate the daily and annual chill hours, chill units, and chill portions accumulation using four different chill models for each location and year. The chill models included the T(t) °C model, the 0°C °C model, the Utah model, and the Dynamic model. For each county, regression analyses were conducted to evaluate the historical trends. Despite year-to-year variability, the tendency was a statistically significant (α = 0.05) increase in air temperature, averaging 0.089°C per year for 20 out of 31 counties in South Carolina. The other 11 counties had no significant change in temperature. The average temperature increase in the 31 counties was 0.072°C per year. The temperature increase resulted in a decrease in annual chill accumulation during the fall to spring, averaging 17.7 chill hours, 8.6 chill hours, 17.0 chill units, and 0.40 chill portions per year calculated with the T(t) °C, 0°C °C, Utah, and Dynamic models, respectively. However, whether this decrease in chill values was statistically significant or not depended on the chill model used. This study did not investigate the cause of the observed historical trends in temperature and chill accumulation. Still, if the trends continue, they could significantly impact the future of the temperate fruit tree industry in the state. 展开更多
关键词 Chill Hours Chill Units Chill Portions Temperature Fruit Trees Climate Change Dormancy
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Analysis of Climate Characteristics of Sunshine Hours in Dalian City in Recent 59 Years 认领 引用 被引量：2
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作者 ZHAO Dong-yan 《Meteorological and Environmental Research》 2011年第1期12-14,共3页
[Objective] The aim was to analyze the changes characteristics of sunshine hours of Dalian City. [Method] Based on the data of sunshine hours of Dalian City during 1951 to 2009 and by dint of linear estimation and acc... [Objective] The aim was to analyze the changes characteristics of sunshine hours of Dalian City. [Method] Based on the data of sunshine hours of Dalian City during 1951 to 2009 and by dint of linear estimation and accumulation anomaly, the change characteristics of decade, annual, seasonal, monthly sunshine hours in Dalian City were analyzed. [Result] The change characteristics of decade, annual, seasonal, monthly sunshine hours in Dalian City were in a decrease trend since recent 59 years. The average sunshine hour in 1950s was the maximum one. Since 21st century, the annual sunshine hour was the lowest one. Annual average sunshine hours were the highest in 1978, and lowest in 2003. There were more sunshine hours before 1989 and later less. Among the four seasons, the sunshine hours in autumn decreased fastest and slowest in spring. The monthly average sunshine hours were the most in May and least in December; the sunshine hours in each month decreased fastest in July. It showed increasing tendency only in March. [Conclusion] The study supplied scientific reference for the reasonable utilization of light energy, agricultural production structure and sustainable development of agricultural economy. 展开更多
关键词 Sunshine hours Change characteristics Dalian City China
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