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肥胖儿童non-HDL-C、remnant cholesterol与亚临床动脉粥样硬化的关系 被引量:4
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作者 焦朝艳 刘戈力 +4 位作者 鲍鹏丽 魏莹 杨箐岩 郑荣秀 赵菁 《天津医科大学学报》 2014年第1期25-28,共4页
目的:了解non-HDL-C和remnant cholesterol与肥胖儿童亚临床动脉粥样硬化(AS)的关系。方法:根据甘油三酯(TG)水平将65例肥胖儿童(肥胖组)分为I组(TG≥2.3 mmol/L)32例,II组(TG<2.3 mmol/L)33例,与肥胖组儿童性别年龄相匹配的正常体... 目的:了解non-HDL-C和remnant cholesterol与肥胖儿童亚临床动脉粥样硬化(AS)的关系。方法:根据甘油三酯(TG)水平将65例肥胖儿童(肥胖组)分为I组(TG≥2.3 mmol/L)32例,II组(TG<2.3 mmol/L)33例,与肥胖组儿童性别年龄相匹配的正常体质量儿童30例为III组(对照组)。比较3组儿童血脂指标,对肥胖组各项血脂指标与血浆致动脉粥样硬化指数(AIP)进行相关性分析,肥胖患儿体质指数、血脂指标与颈动脉内径、内膜-中层厚度(c-IMT)、血流参数进行相关性分析。结果:I组、II组的TG、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、non-HDL-C、remnant cholesterol、AIP均较对照组升高,高密度脂蛋白胆固醇(HDL-C)较对照组降低,且I组的remnant cholesterol、AIP均较II组升高。肥胖组儿童AIP与TG、non-HDL-C、remnant cholesterol呈正相关,与HDL-C呈负相关。37例行颈动脉超声检查的肥胖儿童的c-IMT较正常儿童的增厚。结论:non-HDL-C、remnant cholesterol在肥胖儿童亚临床AS中有重要作用,在肥胖儿童血脂异常的治疗中应关注non-HDL-C、remnant cholesterol的变化。 展开更多
关键词 儿童肥胖 亚临床动脉粥样硬化 non—HDL—C REMNANT CHOLESTEROL 血浆致动脉粥样硬化指数 颈动脉内膜-中层厚度
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Shenqi Fuzheng injection combined with GP chemotherapy in the treatment of advanced non-small cell lung cancer: a meta-analysis 被引量:13
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作者 Qiang Zhang Yi-Huan Fan +2 位作者 Teng Zhang Xiao-Lan Qin Ji-Fang Song 《TMR Integrative Medicine》 2017年第2期68-78,共11页
Objective: To evaluate the clinical efficacy of Shenqi Fuzheng injection combined with gemcitabine plus cisplatin(GP) in the treatment of advanced non-small cell lung cancer (NSCLC). Methods: we performed a syst... Objective: To evaluate the clinical efficacy of Shenqi Fuzheng injection combined with gemcitabine plus cisplatin(GP) in the treatment of advanced non-small cell lung cancer (NSCLC). Methods: we performed a systematicsearch in the electronic databases such as Cochrane Library, Pubmed, Embase, Chinese Journal Full-text Database,Chinese Biomedical Literature Database, Chinese Science and Technology Periodical Full-text Database andWanfang Database up to 30 January 2017. Randomized controlled trials (RCT) of Shenqi Fuzheng Injectioncombined with GP chemotherapy in the treatment of advanced NSCLC were searched, and all the RCTs wereconducted on methodological quality assessment. Data extraction and data analysis were according to standards ofCochrane systematic review. Results: Eight trials were included including a total of 701 patients. Meta-analysisresults: Shenqi Fuzheng injection combined with GP chemotherapy could significantly improve the functionalstatus of patients with NSCLC (OR = 3.44, 95% CI [2.26, 5.25], P 〈 0.0001) and clinical treatment efficacy (OR =(OR = 0.31, 95%CI [0.20, 0.47], P 〈 0.0001. The rate of leukopenia (OR = .31, 95%CI [0.20,0.47], P 〈 0.0001),thrombocytopenia (OR = 0.58, 95%CI [0.37, 0.91], P = 0.020), hemoglobin decline ((OR = 0.31, 95%CI [0.16,0.59], P = 0.0004) and incidence of gastrointestinal reactions (OR = 0.58,P 〈 0.05) could be reduced. Conclusion:Shenqi Fuzheng injection combined with GP chemotherapy in the treatment of advanced NSCLC obtainedsignificantly clinical efficacy. The quality of the literature incorporated is low, the conclusion requires high-qualityresearch to further prove. 展开更多
关键词 Shenqi Fuzheng GP chemotherapy Advanced non - small cell lung cancer Meta analysis
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Analysis of Numerical Results in High Temperature Congealment and Chemistry Non-equilibrium Flow Field
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作者 Hong-tao Zheng Zhi-yong Tan +2 位作者 Hai-ou Sun Chun-liang Zhou Zhi-ming Li 《Journal of Marine Science and Application》 2002年第1期26-34,共9页
Using the air plasma ignition technique, physicochemical process of burning can be accelerated; concentration limit ofretrofires both can be extended; reliability of retrofires and stability of burning can be improved... Using the air plasma ignition technique, physicochemical process of burning can be accelerated; concentration limit ofretrofires both can be extended; reliability of retrofires and stability of burning can be improved. In this paper, using internalequivalent heat area in place of electric are that created Ohm heat, the flow fields of thermodynamic equilibrium chemistry con-gealment and chemistry non-equilibrium in the plasma generator were simulated. The influences of the inlet prerotation angleof air, the inlet total pressure of air and the airflow compression angle of spray nozzle on the temperature on the surface of elec- 展开更多
关键词 plasma GENERATOR CHEMISTRY non - EQUILIBRIUM IGNITION technique numerical calculation
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Turbulent Flow Action of Pulp in Wet - Laid Non - Woven Processes
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作者 程隆棣 黄秀宝 于修业 《Journal of China Textile University(English Edition)》 EI CAS 2000年第3期57-59,共3页
The paper deals with the fluid field of web forming in wet-laid non-woven production.The influence of the turbulent flow on blending fiber and occluded fluid produced in pulp flow has been discussed in theory and prac... The paper deals with the fluid field of web forming in wet-laid non-woven production.The influence of the turbulent flow on blending fiber and occluded fluid produced in pulp flow has been discussed in theory and practice.The suitable use of the imported velocity of pulp is very important in producing wet-laid products of good quality. 展开更多
关键词 WET - laid non - woven fiber PULP FLOW TURBULENT FLOW layer FLUID occluded FLUID .
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CYFRA 21-1 as an early predictor of first line chemotherapy response in advanced non small cell lung cancer
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作者 Kashif Iqbal 《The Chinese-German Journal of Clinical Oncology》 CAS 2007年第3期250-253,共4页
Objective: In an era of ever evolving, promising new therapies for advanced non small cell lung cancer (NSCLC), early predictors of response to therapy, are needed. We evaluated early variations in CYFRA 21-1 serum... Objective: In an era of ever evolving, promising new therapies for advanced non small cell lung cancer (NSCLC), early predictors of response to therapy, are needed. We evaluated early variations in CYFRA 21-1 serum levels of patients with advanced NSCLC receiving first line chemotherapy and correlated the results with objective tumor response. Methods: 29 consecutive, previously untreated, patients of advanced non small cell lung cancer, with measurable disease on CT scan were evaluated. All patients were treated with conventional systemic chemotherapy, although the choice of chemotherapy was left to the discretion of the treating physicians. Serum samples were obtained immediately before the start of 1st and 2nd cycles of chemotherapy. CYFRA 21-1 was measured with an electrochemiluminescense immunoassay on an automatic analyzer (Elecsys 2000; Roche Diagnostics). Response was evaluated using Response evaluation criteria in solid tumors (RECIST) criteria. Results: 10 patients had partial response, 9 patients had stable disease and 9 had progressive disease. None of the patients had complete response. 21/29 (72%) patients had an elevated baseline value of CYFRA 21-1.62% patients (18/29) had a decrease in CYFRA 21-1 after 1 cycle of chemotherapy. The average reduction in the 2nd reading was irrespective of whether baseline value was normal or not. The average reduction was statistically significant (P = 0.002; 95% CI, from 0.8369 to 3.49464; t test). 8 out of 10 (80%) patients with partial response had a reduction in their 2nd reading of. CYFRA (P = 0.019; 95% CI, from 0.81965 to 7.20035; t test) which was significant. We also observed that 6/9 (66%) patients whose disease remains stable also had a decrease in their subsequent reading (P = 0.0106; 95% CI, from -0.44942 to 3.82720; t test), though it was not significant statistically. Although 5 out of 9 (55%) patients, who had an increase in their CYFRA 21-1 level, had progressive disease, but it was not statistically significant (P = 0.537; 95% CI, from -1.20021 to 2.13354; ttest). 14 out of 19 (73%) who either had partial response or had stable disease, had a reduction in their 2nd value of CYFRA 21-1 and was significant statistically (P = 0.004; 95% CI, from 0.74792 to 3.50208; t test). We also observed that except for 1 patient, all patients who had a decrease of 42% or more in their subsequent CYFRA 21-1 level, were those who had either responded to chemotherapy or had stable disease (P = 0.001), which was statistically significant. Conclusion: We can conclude that monitoring of serum marker CYFRA 21-1, early dudng first-line chemotherapy may be a useful prognostic tool for evaluation of early tumor response in patients with advanced NSCLC. 展开更多
关键词 CYFRA 21-1 non small cell lung cancer CHEMOTHERAPY RESPONSE
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MiR-16-5p plays an inhibitory role in human non-small cell lung cancer through Fermitin family member 2
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作者 JUNQI GUO YUN YANG +6 位作者 WEI ZHAO ZHONGHAI YAN XIA YANG YUNFEI YAN RUIMIN HAO JINXIA HU FEI JIAO 《BIOCELL》 SCIE 2021年第3期627-638,共12页
Increasing evidence indicates that aberrant expressions of some microRNAs are associated with cancer progression.However,the roles and biological mechanisms of miRNA-16-5p in human non-small cell lung cancer(NSCLC)are... Increasing evidence indicates that aberrant expressions of some microRNAs are associated with cancer progression.However,the roles and biological mechanisms of miRNA-16-5p in human non-small cell lung cancer(NSCLC)are not to be well studied.Here,we validated that the expression of miR-16-5p was decreased significantly in NSCLC samples and cell lines.The correlation between the clinicopathological features of NSCLC and the miR-16-5p expression showed that the expression of miR-16-5p in non-small cell lung cancer was linked with the advanced TNM stage,positive lymph node metastasis,with short overall survival(OS).Also,a negative correlation between miR-16-5p and Fermitin family member 2(FERMT2)was observed,implying there may be a potential link about their regulation.The hypothesis was further confirmed by in-silico analysis and dual-luciferase reporter assay.Moreover,we demonstrated that the transfections of miR-16-5p mimics could alter some biological characteristics of NSCLC cells remarkably accomplished by the expression variance of FERMT2 in vitro and in vivo assays.Summarily,this study demonstrated that miR-16-5p,as a tumor suppression factor in NSCLC by targeting FERMT2,could serve as one promising biomarker in the prediction for NSCLC patients. 展开更多
关键词 miR-16-5p non–small-cell lung cancer(NSCLC) Fermitin family member 2(FERMT2) APOPTOSIS INVASION Overall survival(OS)
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FAREY SEQUENCE OF NONLINEAR DIFFERENTIAL DYNAMIC SYSTEM IN TWO DIMENSIONS 被引量:1
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作者 H. Q. Jin and S. N. Xu Shenyang Institute of Technology , Shenyang 110015 , China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1999年第5期1234-1236,共3页
In this paper , through the discrim ination of Farey sequence in the forced Brusselator withweak coupling , it is proved that there is a topological translation fro m a nonlinear differen tial system ( limit cycle)... In this paper , through the discrim ination of Farey sequence in the forced Brusselator withweak coupling , it is proved that there is a topological translation fro m a nonlinear differen tial system ( limit cycle) to the circle m ap . 展开更多
关键词 non - linearity Farey sequence phase lock CHAOS
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Ways to Overcome Anxiety in the English Listening Class in College (SUN JING-YU KE SU-FEN)
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作者 孙晶玉 柯素芬 《呼伦贝尔学院学报》 1999年第1期74-77,87,共5页
In my ten-yeat experience of tenching English as major in college , I feel that students experience more difficulties in listening lessons than in other lessons. What, then, prevents students from achieving success in... In my ten-yeat experience of tenching English as major in college , I feel that students experience more difficulties in listening lessons than in other lessons. What, then, prevents students from achieving success in the listening class? I suggest that anxiety is one of the major factors, which interferes with students listening comprehension. And I would agree with writers such as Gardner and Horwitz et al. (1991)that anxiety may impede learner’s ability to perform successfully in all aspects of learning a foreign language. I feet it is particularly significant for listening. 展开更多
关键词 LISTENING anxiety creation of non - ANXIETY environment skills and process focus COUNSELLING corner exposure to authentic English
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AJAX结合VML在基于B/S模式的实时监测系统中的应用 被引量:15
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作者 祁立君 李录平 《微计算机信息》 北大核心 2007年第27期258-260,共3页
本文分析了B/S模式实时监测系统中页面动态图形绘制过程所存在的技术难点,提出了采用AJAX技术结合VML在.NET环境下实现无刷新页面、局部数据更新、WEB页面绘图的解决方案,并给出了应用实例。本文研究的振动信号远程监测系统所采用的无... 本文分析了B/S模式实时监测系统中页面动态图形绘制过程所存在的技术难点,提出了采用AJAX技术结合VML在.NET环境下实现无刷新页面、局部数据更新、WEB页面绘图的解决方案,并给出了应用实例。本文研究的振动信号远程监测系统所采用的无刷新页面技术,解决了传统WEB应用程序中的等待页面刷新、以及在快速刷新下刷新进度条的频闪等弊端;所采用的局部数据更新技术减少了网络数据流量,减轻网络负荷;VML结合CSS在客户端绘图提高图形绘制的灵活性,减轻服务器的工作负担。 展开更多
关键词 实时监测 B/S AJAX 无刷新 VML
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氨基酸与钠离子非共价键相互作用的电喷雾质谱研究 被引量:3
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作者 吴胜明 杨松成 +6 位作者 王杰 王鸿丽 刘炳玉 李爱玲 何昆 魏开华 张学敏 《分析测试学报》 CAS CSCD 北大核心 2004年第z1期66-67,共2页
  实验研究中常常观察到钠离子与一些多肽或蛋白质有较强的非共价键结合能力,这种非共价键相互作用可能与生物的一些功能和活性有关.为了进一步了解这一结合作用,我们应用电喷雾质谱研究了常见的20种氨基酸与钠离子在溶液中的非共价...   实验研究中常常观察到钠离子与一些多肽或蛋白质有较强的非共价键结合能力,这种非共价键相互作用可能与生物的一些功能和活性有关.为了进一步了解这一结合作用,我们应用电喷雾质谱研究了常见的20种氨基酸与钠离子在溶液中的非共价键相互作用.实验研究中发现脯氨酸和苯丙胺酸与钠离子有较强的非共价键结合能力.…… 展开更多
关键词 Sodium ion Amino acids non - covalent interaction ESI - MS
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利用ASP.NET AJAX改善基于Web的在线考试系统 被引量:1
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作者 谢延红 钱爱增 +1 位作者 耿霞 王志军 《丽水学院学报》 2007年第5期80-84,共5页
ASP.NETAJAX1.0是微软公司刚刚发布的与ASP.NET2.0和Visual Studio 2005紧密结合的AJAX开发包,利用它可大大降低开发者向ASP.NET2.0应用程序中添加AJAX功能的难度。针对利用ASP.NET 2.0和JavaScript脚本联合开发的基于Web在线考试系统... ASP.NETAJAX1.0是微软公司刚刚发布的与ASP.NET2.0和Visual Studio 2005紧密结合的AJAX开发包,利用它可大大降低开发者向ASP.NET2.0应用程序中添加AJAX功能的难度。针对利用ASP.NET 2.0和JavaScript脚本联合开发的基于Web在线考试系统的缺点,利用ASP.NET AJAX框架对其进行了改进,从根本上克服了原有系统的缺点。 展开更多
关键词 ASP.NET AJAX 在线考试系统 无刷新
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ASP .NET AJAX框架及在Web开发中的应用 被引量:7
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作者 谢延红 钱爱增 +1 位作者 胡凯 郝迎英 《长春工程学院学报(自然科学版)》 2007年第2期77-80,共4页
Ajax是Web应用的一种新方法,利用Ajax技术不仅可以降低服务器负荷而且能解决整页刷新带来的白屏问题。微软公司刚发布的ASP.NET A-JAX是一个与ASP.NET 2.0和Visual Studio 2005紧密结合的AJAX开发包,利用它可大大降低开发者向ASP.NET 2.... Ajax是Web应用的一种新方法,利用Ajax技术不仅可以降低服务器负荷而且能解决整页刷新带来的白屏问题。微软公司刚发布的ASP.NET A-JAX是一个与ASP.NET 2.0和Visual Studio 2005紧密结合的AJAX开发包,利用它可大大降低开发者向ASP.NET 2.0应用程序中添加AJAX功能的难度。介绍了ASP.NET AJAX框架和使用方式,并以聊天室主页和自动完成功能为例介绍了ASP.NETAJAX在Web开发中的典型应用。 展开更多
关键词 AJAX ASP.NET AJAX 无刷新 异步交互
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Ajax技术在安全生产监管平台中的应用研究 被引量:2
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作者 王阳阳 孟芸 《电脑知识与技术》 2009年第9期7157-7158,7160,共3页
为了满足北京市宣武区安全生产监管信息化的需要,加强政府电子政务的建设,提出了构建基于AJAX的安全生产监管综合信息平台。AJAX的页面无刷新技术及页面局部更新功能提升了用户体验,显著提高了系统性能。
关键词 AJAX B/S XMLHttpRquest 无刷新技术:局部更新
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利用Ajax技术开发无刷新聊天室系统 被引量:1
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作者 谢延红 钱爱增 《长春师范学院学报(自然科学版)》 2007年第3期86-89,共4页
Ajax是Web应用的一种新方法,利用Ajax技术开发的聊天室系统不仅解决了页面刷新带来的白屏问题,而且能降低服务器和网络传输负荷。文章介绍了Ajax技术的工作原理及它在Asp.Net中的一种简便实现方式,并以聊天室主页面为例描述了Ajax技术... Ajax是Web应用的一种新方法,利用Ajax技术开发的聊天室系统不仅解决了页面刷新带来的白屏问题,而且能降低服务器和网络传输负荷。文章介绍了Ajax技术的工作原理及它在Asp.Net中的一种简便实现方式,并以聊天室主页面为例描述了Ajax技术在聊天室系统实现过程中的典型应用。 展开更多
关键词 AJAX 聊天室系统 AJAX.NET 无刷新
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基于PI3000平台的县级电网设备检修工作流系统
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作者 荣耀 王建东 瞿静文 《南京师范大学学报(工程技术版)》 CAS 2007年第4期67-71,共5页
为了提高县级调度机构电网设备检修任务的管理效率,减少失误率,保证电网可靠、高效地运行,以PI3000平台为基础设计开发了县级电网设备检修工作流系统.系统采用PI3000平台对对象、流程和安全进行动态建模,解决了检修工作流对象的并发访... 为了提高县级调度机构电网设备检修任务的管理效率,减少失误率,保证电网可靠、高效地运行,以PI3000平台为基础设计开发了县级电网设备检修工作流系统.系统采用PI3000平台对对象、流程和安全进行动态建模,解决了检修工作流对象的并发访问控制问题,采用XML进行细粒度数据描述,利用PI3000AJAX框架实现了无刷新客户界面.该系统已经应用于江苏省县级调度机构电网设备检修系统等项目中,能够适应电网设备管理数据处理量大、业务流程复杂的特点,运行效果良好. 展开更多
关键词 设备检修 动态建模 工作流 安全控制 并发访问控制 细粒度数据描述 无刷新客户界面
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“清香”与“栗香”绿茶中非挥发性化学成分的差异分析 被引量:12
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作者 王梦琪 朱荫 +3 位作者 张悦 施江 林智 吕海鹏 《食品科学》 EI CAS CSCD 北大核心 2021年第14期151-158,共8页
采用超高效液相色谱-串联质谱(ultra-high performance liquid chromatography-tandem mass spectrometry,UPLCMS/MS)技术分析"清香"绿茶和"栗香"绿茶中非挥发性化学成分的差异。结果表明,从"栗香"和&qu... 采用超高效液相色谱-串联质谱(ultra-high performance liquid chromatography-tandem mass spectrometry,UPLCMS/MS)技术分析"清香"绿茶和"栗香"绿茶中非挥发性化学成分的差异。结果表明,从"栗香"和"清香"绿茶中检测到543个化合物,其中含量差异较大的成分有173个,包括黄酮类75个、酚酸类22个、萜类1个、脂质31个、氨基酸及其衍生物类9个、生物碱4个、核苷酸及其衍生物9个、有机酸5个、木脂素和香豆素5个、鞣质1个以及其他类11个等11类物质;"清香"绿茶中含量高于"栗香"绿茶的化合物共63个,含量低于"栗香"绿茶的化合物共110个;α-亚麻酸、棕榈油酸、香兰素、隐绿原酸、山柰酚-3-O-芸香糖苷、L-蛋氨酸及γ-氨基丁酸共7个化合物对绿茶样品中香气品质成分的生成可能有重要影响;"清香"绿茶中隐绿原酸、L-蛋氨酸含量较高,而"栗香"绿茶中α-亚麻酸、棕榈油酸、香兰素、γ-氨基丁酸及山柰酚-3-O-芸香糖苷等成分的含量比较丰富。 展开更多
关键词 清香 栗香 绿茶 非挥发性成分 差异化合物
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基于JQuery多关键字组合无刷新分页技术的实现
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作者 孙仁鹏 刘富国 《软件工程》 2017年第8期14-16,共3页
有刷新分页需要回传整个页面,用户体验效果差。原生AJAX实现无刷新分页,难度高,代码复杂,且有浏览器兼容和不便解析JSON数据问题。为了解决不足,提出使用JQuery实现无刷新分页。首先分析了有刷新和无刷新的工作原理,然后结合多关键字组... 有刷新分页需要回传整个页面,用户体验效果差。原生AJAX实现无刷新分页,难度高,代码复杂,且有浏览器兼容和不便解析JSON数据问题。为了解决不足,提出使用JQuery实现无刷新分页。首先分析了有刷新和无刷新的工作原理,然后结合多关键字组合搜索,阐述分页的核心实现思路,同时利用JSON提升网络传输效率和简化数据解析,利用数据库端物理分页提高分页性能。实践表明,研究具有较好的实用价值。 展开更多
关键词 JQUERY 多关键字 无刷新 物理分页 JSON
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提高电能量采集系统数据准确率的措施 被引量:2
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作者 李慧勇 那顺宝音 《电工技术》 2022年第2期101-104,共4页
针对某地区电能量采集系统数据错误率高的问题,通过现状调研分析,统计出通信数据不刷新导致的电能量采集数据错误占比73.95%,是造成电能量采集系统数据错误率高的主要症结。通过逐一分析造成通信数据不刷新的8个末端因素,得到了现场异... 针对某地区电能量采集系统数据错误率高的问题,通过现状调研分析,统计出通信数据不刷新导致的电能量采集数据错误占比73.95%,是造成电能量采集系统数据错误率高的主要症结。通过逐一分析造成通信数据不刷新的8个末端因素,得到了现场异动信息未及时更新、未建立主备双通道、布线方式不合理三个主要因素。对此提出并实施了规范电表异动修改流程、布线方式改造为串接接线、数据采集通道改造为主备双通道模式三大对策。改造后,电能量采集系统数据采集准确率均提升至97%以上,满足省公司要求,验证了对策的有效性。 展开更多
关键词 电能量数据 准确率 数据不刷新 通道改造 双通道模式
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非对称数据率网络下的无阻塞连接算法 被引量:1
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作者 陈刚 《计算机时代》 2013年第7期11-12,16,共3页
基于稳定网的数据流连接算法已有很多研究成果,但在实际应用中,还需要处理不同速率网络下的查询连接,这使得目前流行的基于稳定数据流且内存分配固定环境下的连接算法难以适用。介绍了一种在非对称数据率网络下的无阻塞排序归并连接算法... 基于稳定网的数据流连接算法已有很多研究成果,但在实际应用中,还需要处理不同速率网络下的查询连接,这使得目前流行的基于稳定数据流且内存分配固定环境下的连接算法难以适用。介绍了一种在非对称数据率网络下的无阻塞排序归并连接算法SMA。SMA算法的连接运算分为两阶段:join during run creation和join during merge,第一阶段可用于网络无阻塞情况下通过内存刷新策略来生成头批连接结果,第二阶段用于数据源受阻时借助外存驻留数据继续生成查询连接结果,从而保证了连接结果产生的无阻塞性。试验证明,SMA对等值和空间连接效率很高。 展开更多
关键词 数据流 无阻塞连接 内存刷新 排序归并
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采用Ajax技术优化在线考试系统的研究
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作者 华艳 张桂珠 《电脑与电信》 2008年第11期60-61,65,共3页
分析了原有ASP.NET开发的网上考试系统的缺点,并针对这些缺点,结合Ajax技术进行了改进。改进后的系统能更好地提高网络考试系统的交互性与实时响应效率,克服页面重载等待、计时不精确等缺点,提高了系统的实用性。
关键词 ASP.NET AJAX 网上考试系统 无刷新页面
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