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同杆并架双回线跨线不接地故障的距离保护  [PDF]
朱晓彤,郑玉平,张俊洪,张春艳,陈庆军
电力系统自动化 , 2003,
Abstract: 从理论上分析了同杆并架双回线跨线不接地故障时距离继电器测量阻抗的变化规律。提出只有将高频通道、超范围距离元件配合构成允许式纵联距离保护,才能保护同杆双回线跨线不接地故障。还对超范围阻抗如何整定进行了讨论。EMTDC仿真试验证明了理论分析结果是正确的。
计及特性阻抗不连续性的多频带多节变换器优化设计  [PDF]
张晨露,陈明,张毅,梁丽君
电子学报 , 2013, DOI: 10.3969/j.issn.0372-2112.2013.02.031
Abstract: 本文设计了计及特性阻抗不连续性的两频两节及三频三节变换器.基于理想传输线模型和微带传输线理论,建立了计及微带线"台阶"效应的设计方程,采用遗传算法实现优化设计,取得了在纯电阻源阻抗和负载阻抗以及随频率变化的源阻抗和负载阻抗两种情况下的两频两节及三频三节阻抗变换器设计参数.用ADS(AdvancedDesignSystem)商用软件对基于上述设计参数的微带电路进行电磁仿真的数值结果显示了该设计的有效性.
脂肪乳剂模拟"饮食不节"致大鼠高尿酸血症模型  [PDF]
马莹莹,吴玉兰,朱恩伟,吕圭源,陈素红,庞敏霞
中国中药杂志 , 2015,
Abstract: 目的:由于"饮食不节、过食膏粱厚味"与高尿酸血症密切相关,采用含高胆固醇的脂肪乳剂的因素诱导,观察对大鼠血清尿酸的影响,并与高嘌呤饲料造模比较,以期得到更加稳定、持续的动物模型,为中药药效评价奠定基础。方法:SD雄性大鼠分为正常对照组、高嘌呤饲料(HPD)组、脂肪乳剂(LE)组。HPD组给予高嘌呤饲料喂养,正常饮水;LE组灌胃给予脂肪乳剂10mL·kg-1体重,正常水食,连续6周。观察大鼠行为学、摄食量和体重;每隔2周,检测血清UA,Cr,BUN,ALT,AST,HDL-c,LDL-c,TG,TC;造模4周,测血清XOD和ADA含量,收集24h尿液测大鼠尿UA,Cr含量,计算尿酸清除率/肌酐清除率(Cua/Ccr);停止造模后第2,4周测血清UA。结果:造模2周,LE组大鼠摄食量减少、体重降低,血清UA,CR,BUN,ALT,AST,HDL-c,LDL-c,TC均升高,TG水平显著降低;造模4周,HPD组血清UA无明显变化,血清XOD含量显著升高,ADA含量无明显变化;LE组大鼠血清UA仍明显升高,血清XOD,ADA含量显著升高,Cua/Ccr显著降低;造模6周,HPD组血清UA明显升高;LE组血清UA仍显著升高;停止造模后第2周,HPD组血清UA恢复正常;LE组大鼠血清UA水平仍明显升高,第4周血清UA无统计学差异。结论:与高嘌呤饲料喂养比较,脂肪乳剂致大鼠高尿酸血症成型早、持续久、模型更稳定,与"饮食不节,过食膏粱厚味"所致代谢性疾病的发病特点更吻合,用于研究中药抗高尿酸血症的药效学有较大价值。其机制可能与其升高体内XOD,ADA酶活性,促进尿酸生成有关,同时,抑制尿酸排泄有关。
SUSTAINABLE BENCHMARKS FOR TOURIST ACCOMMODATIONS IN BALI  [cached]
Ni Made Utami Dwipayanti
Bumi Lestari , 2012,
Abstract: As part of our efforts to move towards sustainable development, it is very important to encourage the tourism industry to be more environmentally conscious because it consumes large amounts of resources. One way of achieving greater sensitivity is to identify benchmarks for energy and water use and for other aspects of hotel operations like the amount of solid waste generated. Benchmarks can be defined using data from existing hotels. The research project focused on tourist accommodation on Southern Part of Bali Island. It conducted a survey by mailed questionnaire of about 50% of the hotels on the island. The questionnaire obtained annual data on several sustainability criteria that are energy and water consumption, biodiversity conservation, resource conservation, cleaning chemical use, solid waste management and wastewater management. The data were used to derive baseline and best practice thresholds to improve the performance of tourist accommodation on Bali Island. The benchmarks, both baseline and best practice standards were developed mainly using the study results which established the average and the average of the top 25% of performers. The average of the top 10% of performers was also considered in selecting the best practice standard for indicators that required stricter standards. Within the benchmarking process, Green Globe 21 standards and some other studies were also being used for comparison purpose. In this survey, the difficulties were found in obtaining complete set of data from each respondents as well as gaining sufficient responses. Few hotels provided complete set of data. Data on energy and water consumption is the easiest to obtain, while data for other indicators only provided by less than 75% of respondents. Most of the survey results showed reasonable value compared to Green Globe 21 standards. Good performance of tourist accommodation in the survey was found in energy consumption indicator that the average and the average of the top 25% of performers were far stricter than the Green Globe 21 standards. The study concluded with benchmarks recommendation for each indicator that can be applied to tourist accommodations in Southern Part of Bali Island.
高盐高脂酒饮复合因素模拟"饮食不节"对大鼠血液黏度的影响  [PDF]
潘丹丹,高建莉,陈素红,唐琪晶,朱恩伟,吕圭源
中国中药杂志 , 2015,
Abstract: 目的:由于"饮食不节、饮酒无度"与高黏血症密切相关,采用长期高盐、高脂、酒饮等复合因素诱导,观察对大鼠血液黏度、血压等的影响,并与高分子右旋糖酐造模比较,以期得到接近临床患者症候的慢性高黏血症动物模型,为中药药效评价奠定基础。方法:雄性SD大鼠分为正常对照组、高分子右旋糖酐(HMD)组、高盐高脂酒饮(HSFA)组。HMD组给予普通饲料喂养,自由饮水,第24天起尾静脉注射10%HMD,连续5d;HSFA组给予高盐高脂饲料喂养,每天自由饮酒20h,连续13周。造模5,8,11周测全血黏度(WBV)和血浆黏度(PV);5,7,10周测血压;11周测红细胞计数(RBC)、红细胞压积(HCT);13周测正常对照组和HSFA组血小板聚集率(PAgT)、血浆纤维蛋白原(Fb)及血清内皮素-1(ET-1)、一氧化氮(NO)、前列环素(PGI2)、血栓素A2(TXA2)含量,流式细胞术检测红细胞内钙离子(IECa2+)含量。结果:造模后HMD组毛发光泽好、精神好、活动量多;HSFA组大鼠精神萎靡、毛色枯槁、活动量少。与正常对照组相比,造模5~11周HMD组和HSFA组大鼠高、低切全血黏度显著升高。HMD组血浆黏度仅第5周显著升高,HSFA组血浆黏度8,11周显著升高,并且第11周也显著高于HMD组。造模11周HSFA组RBC,HCT升高。造模后,HMD组血压无明显变化,HSFA组大鼠SBP第7~10周升高,其中第10周也显著高于HMD组。造模13周HSFA组PAgT,IECa2+,Fb,ET-1均明显升高,NO,PGI2明显减少。结论:长期高盐高脂酒饮复合因素诱导可引起大鼠血液黏度异常。第5周起全血黏度显著升高,第8周起血浆黏度显著升高。该法升高血液黏度的机制可能是:RBC,HCT,IECa2+增加;PAgT增加;Fb含量增加;TXA2/PGI2,ET-1/NO失衡。虽然该法造模时间比高分子右旋糖酐法长,但采用复合因素造模,模型更稳定,可缓慢、持续引起全血及血浆黏度异常升高,不同于高分子右旋糖酐法一过性升高血浆黏度,同时可引起SBP异常升高。模型大鼠体征更接近高黏血症中医证候,造模机制更接近患者发病机制,对中药药效学研究更有应用价值。
Academic Accommodations: Perceptions, Knowledge and Awareness Among College Students without Disabilities
Education , 2012, DOI: 10.5923/j.edu.20120205.10
Abstract: The growing number of students with disabilities on college campuses leads to an increase in academic accommodations provided to students. So what is the reaction of students without disabilities toward those students who receive accommodations? The purpose of this study was to investigate how students without disabilities perceive the accommodation use of students with learning disabilities and attention deficit disorder in the college academic environment. Based on data analysis of 928 web-based surveys (of the 1,295 surveys submitted), perceptions of students without disabilities were mostly neutral and/or positive; however, limits to what was tolerated within the process did exist. Recommendations are offered for campus practices.
Environmental Management of Small-sized Tourism Accommodations in Turkey
Nazmiye Erdogan
Journal of Applied Sciences , 2007,
Abstract: This study explores the general character of environmental management in small-sized tourism accommodations (STAs) in Turkey. Its objective is to collect and evaluate information about such accommodations and bring the findings to the attention of interested parties such as researchers, local, national and international policy and decision makers, environmentalists and investors regarding the environmental management of small-sized enterprises. The study data were collected from 104 STA facilities in Turkey. It was found that there is no concern for sustainable management and environmental protection in daily practices of such facilities. The study concludes that further studies are needed to find solutions to the existing problems of poor management and lack of interest in the environment.
English language proficiency and the accommodations for language non-concordance amongst patients utilizing chiropractic college teaching clinics
Richard P Saporito
Chiropractic & Manual Therapies , 2013, DOI: 10.1186/2045-709x-21-7
Abstract: The clinic directors and deans of the Association of Chiropractic Colleges were surveyed via an on-line survey engine. The survey queried the percentage of the patient population that is not English language proficient, the accommodations the college currently has in place, if the college has a language specific consent to treat document and if the college has a written policy concerning patients without English proficiency.Fifty percent of the contacted chiropractic colleges responded to the survey. In the respondent college clinics 16.5% of the patient population is not proficient in English, with over 75% speaking Spanish. All but one of the respondents provide some level of accommodation for the language non-concordance. Forty five percent of the responding colleges employ a language specific consent to treat form. The implementation of accommodations and the use of a language specific consent to treat form is more prevalent at colleges with a higher percentage of non-English speaking patients.The percentage of patients with limited English proficiency accessing services at the teaching clinics of the chiropractic colleges mirrors the numbers in the general population. There is a wide disparity in the accommodations that the individual colleges make to address this language discordance. There is a need to further develop accurate and meaningful accommodations to address language disparity in the chiropractic teaching clinics.
具蜡壳的朴盾木虱新属及五新种(同翅目:木虱科)  [PDF]
昆虫分类学报 , 1982,
Abstract: 同翅目昆虫分泌蜡质是很普通的事,木虱科(Psyllidae)也不例外;但若虫生活在像盾蚧(Diaspidae)那样的介壳下者,则并不多见。这类木虱主要分布在澳大利亚区,如Spondyliaspis(Signore,1879),CardiaspinaCrawford,1911),Glycaspis及Hyalinaspis(Taylor,1960)等属,它们都有各式各样的盾壳而属名每缀以aspi-(盾)字。这类木虱的成虫头部有发达的颊锥,在复眼与触角间多具眼前叶(anteoccipitallobes),后足基节
皱茎飞虱属―新种―黑皱茎飞虱(同翅目:飞虱科)  [PDF]
丁锦华,田立新
南京农业大学学报 , 1980, DOI: 10.7685/j.issn.1000-2030.1980.02.006
Abstract: 本文描述的黑皱茎飞虱OpiconsivanigraDingetTian新种,从阳茎构造的特征来看,相似于Opiconsivadodona(Fennah)和Opconsivaalbicollis(Motschulsky),而更接近于后者,它同后者的主要区别是体稍大,黑色而具有光泽,雄虫的臀节小,雄生殖节从后面观,背侧角不向中部反折,从侧面观也不延伸突出,而与后开口的侧缘相交呈直角状,此外,阳基侧突内外端角的形状也有一定程度上的差异。此新种的模式标本产地为云南昆明和广东海南岛,模式标本保存在南京衣学院植保系昆虫标本室。
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