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The US Election in 2024 and the Trend of the Ukraine Crisis
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作者 Zhang Wenzong Shi Guannan 《和平与发展》 CSSCI 2024年第2期192-194,共3页
The crisis in Ukraine,which has dragged on for more than two years,and whether military aid to Ukraine should continue are major issues debated and fought over by the two parties in the United States prior to the 2024... The crisis in Ukraine,which has dragged on for more than two years,and whether military aid to Ukraine should continue are major issues debated and fought over by the two parties in the United States prior to the 2024 election.Regarding whether to continue to aid Ukraine,various political forces in the United States have chosen sides in the election campaign,which can be roughly divided into the“aid camp”and the“stop-aid camp”according to their positions. 展开更多
关键词 CONTINUE POSITIONS ELECTION
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New Developments in the Trumpification of the US Republican Party
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作者 Diao Daming 《Contemporary International Relations》 2024年第4期95-111,共17页
The prominent performance of former US President Donald J.Trump in the 2024 presidential election cycle ref lects the ongoing developments of the Trumpification of the Republican Party(GOP).Since Trump left office,the... The prominent performance of former US President Donald J.Trump in the 2024 presidential election cycle ref lects the ongoing developments of the Trumpification of the Republican Party(GOP).Since Trump left office,the Trumpification of the GOP has continued.In terms of ideological shaping,Trumpification is ref lected in the fact that the political stance of the GOP is dominated by Trump.In terms of personal influence,Trumpification is manifested by the overall acceptance of GOP elites and voters toward Trump's presidential candidacy,notwithstanding a decrease in their satisfaction with him.The recent developments in Trumpification are intricately linked to Trump's influence on the GOP's political ecology,such as the formation of a new GOP coalition and the reshaping of GOP elite composition.Additionally,these developments are also inf luenced by specific political factors,including the unique circumstances of the 2020 presidential election that led to Tr ump's“quasi-incumbent”status and the economic and immigration issues in the 2024 election that favor Trump.The role Trump plays in the 2024 election and its outcome will be critical in determining whether the inf luence of Trumpification,especially Trump himself,will persist or undergo changes. 展开更多
关键词 American party politics Republican Party Trumpification 2024US elections
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Change in Functional Status from Preoperative to One Year Postoperative in Patients Who Have Undergone Elective Open-Heart Surgery: A Repeated-Measures Study
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作者 A. Kate MacPhedran David Barker +1 位作者 Mark Marbey Kieran Fogarty 《World Journal of Cardiovascular Diseases》 CAS 2024年第6期421-433,共13页
Purpose: Although patient-related factors affect surgical outcomes, preoperative functional status is not measured by any cardiac risk score. Functional status can, however, be objectively measured using validated out... Purpose: Although patient-related factors affect surgical outcomes, preoperative functional status is not measured by any cardiac risk score. Functional status can, however, be objectively measured using validated outcome tools such as the Late-Life Function and Disability Instrument (LLFDI). The purpose of this study was to determine 1) if there was a change over time in functional status, as measured by the LLFDI, in patients who underwent elective cardiac surgery, and if so, 2) what specific aspect(s) of functional status changed. Methods: A prospective longitudinal study of one year was conducted on elective cardiac surgery patients (n = 43) using the self-reported LLFDI, which measures Disability Frequency (frequency of participation in social tasks), Disability Limitation (ability to participate in social tasks) and Function Total (ease in performing routine activities). Higher scores indicate increased function and decreased disability. LLFDI scores were compared at three times (preoperative, six-week and one-year postoperative) using repeated measures ANOVA. Post hoc pairwise comparison was conducted for specific interactions. Results: Both Function Total and Disability Frequency significantly changed over time (p = 0.047 and p = 0.013, respectively). Specifically, patients’ function level was significantly higher one-year postoperative compared to preoperative (M difference = +3.48, SE = 1.48, p = 0.026). Likewise, Disability Frequency scores were significantly higher (i.e. more active) at one-year postoperative versus preoperative (M difference= +5.98, SE = 2.19, p = 0.033). Disability Limitation scores were not significantly different between any time points (p > 0.05). Conclusion: By one-year postoperative, patients demonstrated increased ease in their routine physical activities and were more participatory in social life tasks. Individuals who underwent elective cardiac surgery took more than six weeks to detect notable improvement in functional status, which was expected with a sternotomy approach. This study provides support for the use of the LLFDI as an effective tool to capture functional status in the cardiac population. These findings may assist cardiac patients in recovery timeline expectations. 展开更多
关键词 Functional Status Elective Cardiac Surgery Late-Life Function and Disability Instrument
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Reasons for Elective Surgery Cancellations in a Senegalese Pediatric Surgery Department
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作者 Cheikh Tidiane Mbaye Cheikh Diouf +8 位作者 Florent Tshibwid A Zeng Faty Balla Lô Lissoune Cissé Doudou Gueye Ibrahima Bocar Wellé Souleymane Camara Papa Alassane Mbaye Oumar Ndour Gabriel Ngom 《Open Journal of Pediatrics》 2024年第5期783-789,共7页
Introduction: Cancellation of elective surgery is common in developing countries. This decision is difficult to make as it generates economic and organizational consequences for the healthcare facility and an addition... Introduction: Cancellation of elective surgery is common in developing countries. This decision is difficult to make as it generates economic and organizational consequences for the healthcare facility and an additional source of stress for patients and their caregivers. This study aimed to analyze the various aspects of this medical problem. Patients and Methods: We conducted a prospective and descriptive study over six months (from January 1st, 2017, to June 30th, 2017) at the pediatric surgery department of Aristide Le Dantec University Teaching Hospital in Senegal. Results: Ninety-one cases were collected. The cancellation rate was 20.8%. Infants were affected in 36.3% of cases. Among anesthesiologists, 83.5% were residents, and 16.5% were specialists. Cancellation in nephroblastoma children with an indication for extended nephrectomy represented 15.4% of cases. Concerning reasons for cancellation, comorbidities, dominated by respiratory infections, accounted for 28.5% of cases, patient absences for 24.2%, and issues related to the anesthesiologist for 17.6%. Cancellations were avoidable in 33% of cases. Patients were responsible for cancellation in 37.4% of cases, the healthcare system in 33%, and medical reasons in 29.7%. Conclusion: Our findings suggest that one-third of cancellations could have been avoided with improvements in the healthcare system. Actions should be taken to reduce the cancellation rate in our context. 展开更多
关键词 CANCELLATION Elective Surgery Pediatric Surgery LMICs Senegal
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Solutions to Teaching Reform Challenges of Elective Courses under the Background of New Liberal Arts:Taking International Trade in Services Course as an Example
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作者 Huiqian Yu 《Journal of Contemporary Educational Research》 2024年第11期28-33,共6页
Variations in the allocation of university resources,teachers’course selection preferences and teaching commitment levels,as well as students’course preferences and assessment requirements,create subjective differen... Variations in the allocation of university resources,teachers’course selection preferences and teaching commitment levels,as well as students’course preferences and assessment requirements,create subjective differences.These differences,compounded by the demands of the new liberal arts reform,place significant challenges and pressure on elective course instructors.To meet these demands,elective course teachers should enhance their teaching methods and explore new instructional models.The International Trade in Services course,for instance,has implemented six areas of curriculum reform,enriching the practice of elective course improvement. 展开更多
关键词 New liberal arts reform Elective course Curriculum teaching model Teaching method reform Curriculum test
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Operational Problems and Countermeasures of Public Elective Courses in Higher Vocational Colleges and Universities Based on the Perspective of Academic Affairs Management:Taking Guangdong C Vocational College as an Example
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作者 Jingjie Li 《Journal of Contemporary Educational Research》 2024年第9期277-282,共6页
With the vigorous development of higher vocational education,public elective courses,as one of the core components of the higher vocational curriculum system,occupy a pivotal position.Based on the perspective of acade... With the vigorous development of higher vocational education,public elective courses,as one of the core components of the higher vocational curriculum system,occupy a pivotal position.Based on the perspective of academic affairs management and taking Guangdong C Vocational College as an example,this paper meticulously analyzes the operational problems in the declaration,setting,teaching,and management of public elective courses through questionnaire surveys and other methods.It also puts forward a series of targeted solutions,with a view to continuously improving the teaching quality and management level of public elective courses. 展开更多
关键词 Academic affairs management Public elective courses Operational problems COUNTERMEASURES Higher vocational colleges and universities
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浅谈英语中词性的活用
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作者 高健 《英语自学》 2004年第2期28-28,共1页
在英语学习中,背单词一直是同学们头疼的问题,层出不穷的单词大大打击了学习英语的积极性和成就感。其实,语言是融会贯通的,如果我们能够灵活巧妙的使用已掌握的常用词汇,常常回收到意想不到的效果。所以,灵活使用单词是英语学习中十分... 在英语学习中,背单词一直是同学们头疼的问题,层出不穷的单词大大打击了学习英语的积极性和成就感。其实,语言是融会贯通的,如果我们能够灵活巧妙的使用已掌握的常用词汇,常常回收到意想不到的效果。所以,灵活使用单词是英语学习中十分重要的环节。举例如下: 展开更多
关键词 灵活巧妙 名词活用为动词 动词词组 动叶 中轴 today ELECTION TIGER 成大器 s
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选课系统的构建模块及技术
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作者 王凌燕 刘爱民 《网络与信息》 2008年第8期30-31,共2页
随着通讯技术和计算机网络技术的不断发展,教学管理网络化是一种必然趋势,本文结合我院实际,介绍学生选课系统的构建模块及所用技术。
关键词 Active Server PAGE 技术 Browser/Server/Database (B/S/D) 三层结构模式 ADO ELECTIVE System and technical building BLOCKS
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Elections in the United States
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作者 侯世敏 《中学英语园地(高三版)》 2007年第Z2期117-120,共4页
惊奇常常是在箱子里出现:包在彩色包装纸里面的生日礼物,朋友寄来牛皮纸包的包裹。不论是怎样的箱子,人们都喜欢打开来看看里面是什么。在美国以及其它许多国家,有一个特殊的箱子关系着未来。
关键词 生日礼物 中学英语园地 DEMOCRACY 选举人 ELECTION 投票人 总统候选人 defin
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Hepatitis B in pregnancy 被引量:18
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作者 Guglielmo Borgia Maria Aurora Carleo +1 位作者 Giovanni Battista Gaeta Ivan Gentile 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第34期4677-4683,共7页
Chronic hepatitis B virus (HBV) infection affects about 350 million individuals worldwide. Management of HBV infection in pregnancy is difficult because of several peculiar and somewhat controversial aspects. The aim ... Chronic hepatitis B virus (HBV) infection affects about 350 million individuals worldwide. Management of HBV infection in pregnancy is difficult because of several peculiar and somewhat controversial aspects. The aim of the present review is to provide a tool that may help physicians to correctly manage HBV infection in pregnancy. This review focuses on (1) the effect of pregnancy on HBV infection and of HBV infection on pregnancy; (2) the potential viral transmission from mother to newborn despite at-birth prophylaxis with immunoglobulin and vaccine; (3) possible prevention of mother-to-child transmission through antiviral drugs, the type of antiviral drug to use considering their efficacy and potential teratogenic effect, and the timing of their administration and discontinuation; and (4) the evidence for the use of elective caesarean section vs vaginal delivery and the possibility of breastfeeding. 展开更多
关键词 Hepatitis B virus PREGNANCY THERAPY Te-nofovir LAMIVUDINE TELBIVUDINE ENTECAVIR Breastfeed-ing Elective caesarean section
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关于ELECTER的正态Z+值的多属性群决策 被引量:1
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作者 卢亚楠 毛军军 张晓珍 《佳木斯大学学报(自然科学版)》 CAS 2020年第5期155-159,共5页
基于将语言型Z-number在云模型的基础上转化为正态Z+值,在属性权重未知、决策者权重已知的情形下,提出了基于ELECTER的正态Z+值的多属性群决策方法。引入了针对正态Z+值的广义加权平均聚合运算,定义了正态Z+值比较大小的方法。利用引入... 基于将语言型Z-number在云模型的基础上转化为正态Z+值,在属性权重未知、决策者权重已知的情形下,提出了基于ELECTER的正态Z+值的多属性群决策方法。引入了针对正态Z+值的广义加权平均聚合运算,定义了正态Z+值比较大小的方法。利用引入的广义加权平均聚合运算将多个决策者的信息聚合,再利用定义的正态Z+值比较大小的方法确定一致集和矛盾集,构建相应的矩阵,再通过净优势值来确定排序。最后通过例子说明其可行性。 展开更多
关键词 正态Z+值 ELECTER法 多属性群决策 语言型Z-number 正态云模型
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Bioleaching of sphalerite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans cultured in 9K medium modified with pyrrhotite 被引量:5
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作者 陈松 邱冠周 +1 位作者 覃文庆 蓝卓越 《Journal of Central South University of Technology》 EI 2008年第4期503-507,共5页
Elective culture of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans in 9K medium modified with pyrrhotite was studied.Bioleaching of flotation concentrate of sphalerite by the selected bacteria was ca... Elective culture of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans in 9K medium modified with pyrrhotite was studied.Bioleaching of flotation concentrate of sphalerite by the selected bacteria was carried out.The results show that the microorganisms cultured by pyrrhotite are a mixture of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans,of which the capability to oxidize ferrous to ferric irons is enhanced by the high mass ratio of Fe to S in pyrrhotite.Three pyrrhotite samples were separated into various parts with corresponding S/Fe ratios by magnetic separation and were used to culture the elective bacteria as the substrate.The association of the cultures could provide a more rapid and complete oxidation of sphalerite than that of bacteria cultivated by conventional methods. 展开更多
关键词 BIOLEACHING PYRRHOTITE elective culture SPHALERITE
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Effect of China's Universal Two-child Policy on the Rate of Cesarean Delivery: A Case Study of a Big Childbirth Center in China 被引量:9
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作者 Shu-guo DU Fei TANG +4 位作者 Yun ZHAO Guo-qiang SUN Ying LIN Zhi-hua TAN Xu-feng WU 《Current Medical Science》 SCIE CAS 2020年第2期348-353,共6页
China's universal two child policy was released in October of 2015.How would this new policy influence the rate of overall cesarcan delivery(CD)in China?The objective of this paper is to investigate the trend of o... China's universal two child policy was released in October of 2015.How would this new policy influence the rate of overall cesarcan delivery(CD)in China?The objective of this paper is to investigate the trend of overall CD rate with the increase of number of multiparous women based on a big childbirth center of China(a tertiary hospital)in 2016.In this study,22530 cases from the medical record department of a big childbirth center of China from January 1 to December 31 in 2016 were entolled as research objects.Electronic health records of these selected objects were retrieved.According t0 the history of childbirth,the selected cases were divided into primiparous group containing 16340 cases and multiparous group containing 6190 cases.Chi-square test was carried out to compare the rate of CD,neuraxial labor analgesia,maternity insurance between the two groups;1-test was performed to compare the in-hospital days and gestational age at birth between the two groups.Pearson corrclation coefficient was used to evaluate the rclationship among observed monthly rate of multiparas,overall CD rate,and Elective Repeat Cesarean Delivery(ERCD)rate.The results showed that the CD rate in multiparous group was 55.46%,which was higher than that in primiparous group(34.66%,P<0.05).The rate of neuraxial labor analgesia in multiparas group was 9.29%,which was lower than that in primiparas group(35.94%,P<0.05).However,the rate of maternity insurance was higher in multiparas group(57.00%)than that in primiparas group(41.08%,P<0.05).The hospital cost and in-hospital days in multiparas group were higher,and the gcstational age at birth in multiparas group was lower than in primiparas group(P<0.05).The overall CD rate slightly dropped in the first 4 months of the year(P<0.05),then increased from 36.27%(April)to 43.21%(Dcember)(P<0.05).The rate of multiparas women and ERCD had the same trend(P<0.05).There were linear correlations among the rate of overall CD,the rate of multiparas women and the rate of ERCD rate(P<0.05).With the opening of China's two-child policy,the increasing rate of overall CD is directly related with the high rate of ERCD.Trials of Labor After Cesarean Section(TOLAC)in safe mode to reduce overall CD rate are warranted in the future. 展开更多
关键词 cesarean delivery elective repeat cesarean delivery Trial of Labor After Cesarean Section(TOLAC)
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Theoretical Calculations of Transition Probabilities and Oscillator Strengths for Sc(Ⅲ) and Y(Ⅲ)
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作者 张天忆 郑能武 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2009年第3期246-254,339,共10页
The Weakest Bound Electron Potential Model theory is used to calculate transition probability-values and oscillator strength-values for individual lines of Sc(Ⅲ) and Y(Ⅲ). In this method, by solving the SchrSdin... The Weakest Bound Electron Potential Model theory is used to calculate transition probability-values and oscillator strength-values for individual lines of Sc(Ⅲ) and Y(Ⅲ). In this method, by solving the SchrSdinger equation of the weakest bound electron, the expressions of energy eigenvalue and the radial function can be obtained. And a coupled equation is used to determine the parameters which are needed in the calculations. The ob- tained results of Sc(III) from this work agree very well with the accepted values taken from the National Institute of Standards and Technoligy (NIST) data base, most deviations are within the accepted level. For Y(Ⅲ) there are no accepted values reported by the NIST data base. So we compared our results of Y(Ⅲ) with other theoretical results, good agreement is also obtained. 展开更多
关键词 Weakest bound election potential model theory Transition probability Oscil-lator strength Sc(Ⅲ) Y(Ⅲ)
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Improving Sentiment Analysis in Election-Based Conversations on Twitter with ElecBERT Language Model 被引量:3
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作者 Asif Khan Huaping Zhang +2 位作者 Nada Boudjellal Arshad Ahmad Maqbool Khan 《Computers, Materials & Continua》 SCIE EI 2023年第9期3345-3361,共17页
Sentiment analysis plays a vital role in understanding public opinions and sentiments toward various topics.In recent years,the rise of social media platforms(SMPs)has provided a rich source of data for analyzing publ... Sentiment analysis plays a vital role in understanding public opinions and sentiments toward various topics.In recent years,the rise of social media platforms(SMPs)has provided a rich source of data for analyzing public opinions,particularly in the context of election-related conversations.Nevertheless,sentiment analysis of electionrelated tweets presents unique challenges due to the complex language used,including figurative expressions,sarcasm,and the spread of misinformation.To address these challenges,this paper proposes Election-focused Bidirectional Encoder Representations from Transformers(ElecBERT),a new model for sentiment analysis in the context of election-related tweets.Election-related tweets pose unique challenges for sentiment analysis due to their complex language,sarcasm,andmisinformation.ElecBERT is based on the Bidirectional Encoder Representations from Transformers(BERT)language model and is fine-tuned on two datasets:Election-Related Sentiment-Annotated Tweets(ElecSent)-Multi-Languages,containing 5.31 million labeled tweets in multiple languages,and ElecSent-English,containing 4.75million labeled tweets in English.Themodel outperforms othermachine learning models such as Support Vector Machines(SVM),Na飗e Bayes(NB),and eXtreme Gradient Boosting(XGBoost),with an accuracy of 0.9905 and F1-score of 0.9816 on ElecSent-Multi-Languages,and an accuracy of 0.9930 and F1-score of 0.9899 on ElecSent-English.The performance of differentmodels was compared using the 2020 United States(US)Presidential Election as a case study.The ElecBERT-English and ElecBERT-Multi-Languages models outperformed BERTweet,with the ElecBERT-English model achieving aMean Absolute Error(MAE)of 6.13.This paper presents a valuable contribution to sentiment analysis in the context of election-related tweets,with potential applications in political analysis,social media management,and policymaking. 展开更多
关键词 Sentiment analysis social media election prediction machine learning TRANSFORMERS
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Quantum election scheme based on anonymous quantum key distribution 被引量:3
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作者 周瑞瑞 杨理 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第8期23-30,共8页
An unconditionally secure authority-certified anonymous quantum key distribution scheme using conjugate coding is presented, based on which we construct a quantum election scheme without the help of an entanglement st... An unconditionally secure authority-certified anonymous quantum key distribution scheme using conjugate coding is presented, based on which we construct a quantum election scheme without the help of an entanglement state. We show that this election scheme ensures the completeness, soundness, privacy, eligibility, unreusability, fairness, and verifiability of a large-scale election in which the administrator and counter are semi-honest. This election scheme can work even if there exist loss and errors in quantum channels. In addition, any irregularity in this scheme is sensible. 展开更多
关键词 quantum election quantum key distribution conjugate coding
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A Game-Theoretic Approach to Elastic Control in Software-Defined Networking 被引量:6
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作者 Hongchang Chen Guozhen Cheng Zhiming Wang 《China Communications》 SCIE CSCD 2016年第5期103-109,共7页
Elastic control could balance the distributed control plane in Software-Defined Networking(SDN). Dynamic switch migration has been proposed to achieve it. However, existing schemes mainly focus on how to execute migra... Elastic control could balance the distributed control plane in Software-Defined Networking(SDN). Dynamic switch migration has been proposed to achieve it. However, existing schemes mainly focus on how to execute migration operation, but not why. This paper designs a decision-making mechanism based on zero-sum game theory to reelect a new controller as the master for migrated switches. It first chooses a switch for migration in the heavy controller which invites its neighbors as the game players to compete for the master role of this switch in the game-playing field(GPF) which is an occasional and loose domain for game-playing. Second, based on the concept of GPF, we design a decentralized strategy to play the game and determine which player as the final master. We implement it by extending the Open Flow protocol. Finally, numerical results demonstrate that our distributed strategy can approach elastic control plane with better performance. 展开更多
关键词 software-defined networking master election game theory OpenFlow
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General election effect on the network topology of Pakistan’s stock market: network-based study of a political event 被引量:2
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作者 Bilal Ahmed Memon Hongxing Yao Rabia Tahir 《Financial Innovation》 2020年第1期42-55,共14页
To examine the interdependency and evolution of Pakistan’s stock market,we consider the cross-correlation coefficients of daily stock returns belonging to the blue chip Karachi stock exchange(KSE-100)index.Using the ... To examine the interdependency and evolution of Pakistan’s stock market,we consider the cross-correlation coefficients of daily stock returns belonging to the blue chip Karachi stock exchange(KSE-100)index.Using the minimum spanning tree network-based method,we extend the financial network literature by examining the topological properties of the network and generating six minimum spanning tree networks around three general elections in Pakistan.Our results reveal a star-like structure after the general elections of 2018 and before those in 2008,and a tree-like structure otherwise.We also highlight key nodes,the presence of different clusters,and compare the differences between the three elections.Additionally,the sectorial centrality measures reveal economic expansion in three industrial sectors—cement,oil and gas,and fertilizers.Moreover,a strong overall intermediary role of the fertilizer sector is observed.The results indicate a structural change in the stock market network due to general elections.Consequently,through this analysis,policy makers can focus on monitoring key nodes around general elections to estimate stock market stability,while local and international investors can form optimal diversification strategies. 展开更多
关键词 Minimum spanning tree Centrality measures General elections Emerging market Pakistan Stock market network
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Conservative approach to the acute management of a large mesenteric cyst 被引量:1
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作者 Billy C Leung Ruth Sankey +1 位作者 Matteo Fronza Mohamed Maatouk 《World Journal of Clinical Cases》 SCIE 2017年第9期360-363,共4页
Mesenteric cysts are rare, benign gastrointestinal cystic lesions, which are often non-troublesome and present as an incidental radiological finding. However, surgery is often performed in the acute setting to remove ... Mesenteric cysts are rare, benign gastrointestinal cystic lesions, which are often non-troublesome and present as an incidental radiological finding. However, surgery is often performed in the acute setting to remove lesions that are symptomatic. This report highlights the case of a large, symptomatic mesenteric cyst managed successfully with initial conservative measures followed by planned elective surgery. A 44-year-old female presented with a four-day history of generalised abdominal pain associated with distension, fever, diarrhoea and vomiting. Computer tomography revealed a large(21.7 cm × 11.8 cm × 14 cm) mesenteric cyst within the left abdomen cavity. She was admitted and treated conservatively with intravenous fluids and antibiotics for four days, which lead to complete symptom resolution. Follow-up at intervals of one and three months revealed no return of symptoms. An elective laparotomy and excision of the mesenteric cyst was then scheduled and performed safely at nine months after the initial presentation. Compared to acute surgery, acute conservative management followed by planned elective resection of a symptomatic mesenteric cyst may prove safer. The withholding of an immediate operation may potentially avoid unnecessary operative risk and should be considered in patients without obstructive and peritonitic symptoms. Our case demonstrated the safe use of initial conservative management followed by planned elective surgery of a mesenteric cyst found in the acute setting, which was symptomatic but was not obstructive or causing peritonitic symptoms. 展开更多
关键词 CONSERVATIVE management ACUTE SETTING MESENTERIC CYSTS ELECTIVE operation
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Research on Performance of ZnS∶TbF_3 Thin Film Electroluminescence Device 被引量:1
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作者 何大伟 杨胜 +3 位作者 关亚菲 权善玉 王永生 叙瑢 《Journal of Rare Earths》 SCIE EI CAS CSCD 2003年第1期19-22,共4页
The electroluminescence of ZnS doped with terbium fluoride thin films prepared b y ra dio frequency magnetron sputtering method was reported. The characteristics of t h e ZnS∶TbF 3 thin film electroluminescence devi... The electroluminescence of ZnS doped with terbium fluoride thin films prepared b y ra dio frequency magnetron sputtering method was reported. The characteristics of t h e ZnS∶TbF 3 thin film electroluminescence devices, such as film characteristi cs of the ZnS∶Tb active layer, substrate temperatures during magnetron sputteri ng and Tb concentration of the active layer, were systematically investigated. The results show that annealing can evidently improve the luminescence performance of the luminescence device. 展开更多
关键词 luminescence rf magnetron sputtering elect ron-beam evaporation ELECTROLUMINESCENCE rare earths
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