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    题名 作者 年代 出处 被引量
1垂直流人工湿地水力学特点对污水净化效果的影响显示文摘通过在污水中加入示踪剂 ,研究了人工湿地的水力学特点及其对污水净化效果的影响规律 .结果表明 ,影响水力学各特点的主要原因是湿地植物根系所造成的物理学和生物学上的效应 .水力学各特点与污水净化效果之间存在着密切关系 :出水快、出水量大的系统具有较好的净化效果 ;除无植物系统外 ,停留时间较长的系统有较好的净化效果 ;容水体积大的系统净化效果也较好 ;水力负荷则主要通过影响其他各水力学特点而影响净化效果 .结果表明 。吴振斌 任明迅 付贵萍 贺锋 Alex Pressl 2001环境科学2001,22,5:83
2术后活动性疼痛护理评估对疼痛管理质量的影响显示文摘目的探讨术后活动性疼痛护理评估对疼痛管理质量的影响。方法将140例胸腹部术后1d的患者分为实验组和对照组。实验组在接受病区护士的术后疼痛护理措施的基础上,由疼痛专科护士采用功能活动评分法(Functional Activity Score,FAS)和数字评定量表(Numerical Rating Scale,NRS)评估活动性疼痛,并根据评估结果实施干预措施。对照组仅接受病区护士实施的术后疼痛护理措施。结果实验组和对照组术后24h内镇痛治疗方案调整及功能活动前按压镇痛泵比例的差异具有统计学意义(χ2=7.937,χ2=37.303,均P<0.05)。实验组在术后24h时间点的FAS评级结果、患者自评静息性和活动性疼痛强度,以及术后24h内疼痛最剧烈程度、中重度疼痛发生频度及有效咳嗽受疼痛影响程度均低于对照组(P<0.05),首次下床活动时间也早于对照组(P<0.05)。结论开展活动性疼痛护理评估实践有助于提高术后疼痛管理质量。成燕 童莺歌 刘敏君 田素明 Alex H.Konstantatos Dana Boyd 2015中华护理杂志2015,50,8:161
3The Open Quantum Materials Database (OQMD): assessing the accuracy of DFT formation energies显示文摘The Open Quantum Materials Database(OQMD)is a high-throughput database currently consisting of nearly 300,000 density functional theory(DFT)total energy calculations of compounds from the Inorganic Crystal Structure Database(ICSD)and decorations of commonly occurring crystal structures.To maximise the impact of these data,the entire database is being made available,without restrictions,at www.oqmd.org/download.In this paper,we outline the structure and contents of the database,and then use it to evaluate the accuracy of the calculations therein by comparing DFT predictions with experimental measurements for the stability of all elemental ground-state structures and 1,670 experimental formation energies of compounds.This represents the largest comparison between DFT and experimental formation energies to date.The apparent mean absolute error between experimental measurements and our calculations is 0.096 eV/atom.In order to estimate how much error to attribute to the DFT calculations,we also examine deviation between different experimental measurements themselves where multiple sources are available,and find a surprisingly large mean absolute error of 0.082 eV/atom.Hence,we suggest that a significant fraction of the error between DFT and experimental formation energies may be attributed to experimental uncertainties.Finally,we evaluate the stability of compounds in the OQMD(including compounds obtained from the ICSD as well as hypothetical structures),which allows us to predict the existence of~3,200 new compounds that have not been experimentally characterised and uncover trends in material discovery,based on historical data available within the ICSD.Scott Kirklin James E Saal Bryce Meredig Alex Thompson Jeff W Doak Muratahan Aykol Stephan Rühl Chris Wolverton 2015npj Computational Materials2015,,1:62
4北京空气质量多模式集成预报系统的建立及初步应用显示文摘介绍了北京空气质量多模式集成预报系统(EMS-Beijing).系统中区域空气质量模式包括中国科学院大气物理所自主开发的嵌套网格空气质量模式系统(NAQPMS)模式、美国环保署(EPA)开发的Models-3/CMAQ模式及美国Environ公司开发的CAMx模式等,均使用SMOKE排放模型统一处理大气污染排放清单.此系统各模式采用统一的模拟区域和网格分辨率,采用中尺度气象模式MM5提供统一的气象场,并采用算术平均、权重集成等方法集成各空气质量模式结果,并投入北京空气质量业务预报,有效支持了北京奥运会空气质量数值预报.业务预报结果表明:1)采用SMOKE处理的奥运排放清单较接近实际,2008年8月各空气质量模式可吸入颗粒物(PM10)日均值预报结果相对偏差为-3%~17%,与观测数据相关系数在0.7以上;2)在排放清单较接近实际的情况下,PM10日均值多模式算术平均优于单个空气质量模式;3)分析2008年4—11月业务预报表明,采用权重集成方法预报的PM10日均值优于算术平均方法,达61%.总体上,权重集成方法优于算术平均结果.王自发 吴其重 Alex GBAGUIDI 晏平仲 张伟 王威 唐晓 2009南京信息工程大学学报(自然科学版)2009,1,1:60
5垂直流人工湿地系统中水流规律的研究显示文摘对一种新型的垂直流人工湿地系统的水流特性进行了研究 .考察了系统的运行状况及介质中滞留区的分布范围 ,并且运用化学工程中反应器理论 ,采用示踪剂试验的方法得到了垂直流人工湿地系统的停留时间分布与污水的实际停留时间 .根据水流停留时间分布函数对系统实际液流流态进行了数学模拟 ,提出二级串联的理想完全混合反应器 (CSTR)付贵萍 吴振斌 任明迅 贺锋 Alex Pressl Reinhard Perfler 2001环境科学学报2001,21,6:47
6典型夏季珠江三角洲地区植被的异戊二烯排放显示文摘利用中巴卫星影像采用监督分类的方法对影像进行解译,并反演珠江三角洲4种主要的植被类型(PFT).利用自然排放气体和气溶胶模式——MEGAN(Model of Emissions of Gases and Aerosols from Nature),对典型夏季日珠江三角洲地区植被异戊二烯的排放进行了初步研究.结果显示:估算日珠江三角洲植被异戊二烯总的排放量为1.73×106kg(以C计,下同).异戊二烯的排放有明显的日变化特征,最大排放量出现在14:00,为2.39×105kg.广州、江门和惠州的异戊二烯平均排放速率最大,分别为4580g·km-·2h-1、4250g·km-·2h-1和4130g·km-·2h-1;同时江门和惠州也为异戊二烯日排放量的高值区,其日排放总量分别为4.60×105kg和4.29×105kg,排放贡献率分别为26.6%和24.8%.司徒淑娉 王雪梅 Alex Guenther 柴子为 邓儒儒 2009环境科学学报2009,29,4:36
7多模式模拟评估奥运赛事期间可吸入颗粒物减排效果显示文摘以空气质量多模式系统为工具,分析奥运赛事期间可吸入颗粒物(PM10)浓度大幅减小特征,从气象场和排放源两方面研究PM10浓度大幅减小的主要原因.多模式系统由嵌套网格空气质量模式(NAQPMS)、通用空气质量多尺度模式(CMAQ)和复杂大气空气质量三维模式(CAMx)3个空气质量复合模型组成,并以中尺度气象模式(MM5)和稀疏矩阵排放处理模型(SMOKE)提供统一气象场及排放源.研究对比2006年8月、2008年8月两组气象条件下北京PM10浓度水平及模拟效果,结果表明奥运赛事期间PM10浓度大幅减小的主要原因不是气象因素,而是由于额外措施引起的PM10排放减少.同时采用多模式系统数值模拟反向评估,获得北京奥运赛事期间奥运控制及额外减排措施引起的PM10减排量,结果表明,奥运赛事期间所有额外控制措施对颗粒物浓度效果相当于在2008年8月气象条件下,削减大约200t.d-1的无组织PM10排放,相当于北京正常时期PM10排放的50%.吴其重 王自发 徐文帅 黄江平 Alex Gbaguidi 2010环境科学学报2010,30,9:38
8Efficient human iPS cell derivation by a non-integrating plasmid from blood cells with unique epigenetic and gene expression signatures显示文摘Bin-Kuan Chou Prashant Mali Xiaosong Huang Zhaohui Ye Sarah N Dowey Linda MS Resar Chunlin Zou Alex Zhang Jay Tong Linzhao Cheng 2011Cell Research2011,21,3:38
9Achieving the best bowel preparation for colonoscopy显示文摘Bowel preparation is a core issue in colonoscopy,as it is closely related to the quality of the procedure.Patients often find that bowel preparation is the most unpleasant part of the examination.It is widely accepted that the quality of cleansing must be excellent to facilitate detecting neoplastic lesions.In spite of its importance and potential implications,until recently,bowel preparation has not been the subject of much study.The most commonly used agents are high-volume polyethylene glycol(PEG)electrolyte solution and sodium phosphate.There has been some confusion,even in published meta-analyses,regarding which of the two agents provides better cleansing.It is clear now that both PEG and sodium phosphate are effectivewhen administered with proper timing.Consequently,the timing of administration is recognized as one of the central factors to the quality of cleansing.The bowel preparation agent should be administered,at least in part,a few hours in advance of the colonoscopy.Several low volume agents are available,and either new or modified schedules with PEG that usually improve tolerance.Certain adjuvants can also be used to reduce the volume of PEG,or to improve the efficacy of other agents.Other factors apart from the choice of agent can improve the quality of bowel cleansing.For instance,the effect of diet before colonoscopy has not been completely clarified,but an exclusively liquid diet is probably not required,and a low-fiber diet may be preferable because it improves patient satisfaction and the quality of the procedure.Some patients,such as diabetics and persons with heart or kidney disease,require modified procedures and certain precautions.Bowel preparation for pediatric patients is also reviewed here.In such cases,PEG remains the most commonly used agent.As detecting neoplasia is not the main objective with these patients,less intensive preparation may suffice.Special considerations must be made for patients with inflammatory bowel disease,including safety and diagnostic issues,so that the most adequate agent is chosen.Identifying neoplasia is one of the main objectives of colonoscopy with these patients,and the target lesions are often almost invisible with white light endoscopy.Therefore excellent quality preparation is required to find these lesions and to apply advanced methods such as chromoendoscopy.Bowel preparation for patients with lower gastrointestinal bleeding represents a challenge,and the strategies available are also reviewed here.Adolfo Parra-Blanco Alex Ruiz Manuel Alvarez-Lobos Ana Amorós Juan Cristóbal Gana Patricio Ibáez Akiko Ono Takahiro Fujii 2014World Journal of Gastroenterology2014,20,47:37
10Modern management of rectal cancer: A 2006 update显示文摘The goal of this review is to outline some of the important surgical issues surrounding the management of patients with early (T1/T2 and NO), as well as locally advanced (T3/T4 and/or N1) rectal cancer. Surgery for rectal cancer continues to develop towards the ultimate goals of improved local control and overall survival, maintaining quality of life, and preserving sphincter, genitourinary, and sexual function. Information concerning the depth of tumor penetration through the rectal wall, lymph node involvement, and presence of distant metastatic disease is of crucial importance when planning a curative rectal cancer resection. Preoperative staging is used to determine the indication for neoadjuvant therapy as well as the indication for local excision versus radical cancer resection. Local excision is likely to be curative in most patients with a primary tumor which is limited to the submucosa (T1N0M0), without high-risk features and in the absence of metastatic disease. In appropriate patients, minimally invasive procedures, such as local excision, TEM, and laparoscopic resection allow for improved patient comfort, shorter hospital stays, and earlier return to preoperative activity level. Once the tumor invades the muscularis propria (T2), radical rectal resection in acceptable operative candidates is recommended. In patients with transmural and/or node positive disease (T3/T4 and/or N1) with no distant metastases, preoperative chemoradiation followed by radical resection according to the principles of TME has become widely accepted. During the planning and conduct of a radical operation for a locally advanced rectal cancer, a number of surgical management issues are considered, including: (1) total mesorectal excision (TME); (2) autonomic nerve preservation (ANP); (3) circumferential resection margin (CRM); (4) distal resection margin; (5) sphincter preservation and options for restoration of bowel continuity; (6) laparoscopic approaches; and (7) postoperative quality of life.Glen C Balch Alex De Meo Jose G Guillem 2006World Journal of Gastroenterology2006,12,20:26
11复合垂直流湿地反应动力学及水流流态的研究显示文摘提出一种新型的复合垂直流湿地系统(IVCW),并对其反应动力学和系统的实际流态进行了研究.经过中试的运行试验,得到了系统对COD去除的反应速率方程,由示踪剂试验确定了系统中水流的停留时间分布(RTD),提出RTD的不同是湿地处理效率差异的主要原因,进而运用串联反应器模型和离散流模型两种非理想流态模型,模拟IVCW的实际水流流态,经过比较发现离散流模型模拟的效果较好.付贵萍 吴振斌 任明迅 贺锋 成水平 Alex Pressl Reinhard Perfler 2001中国环境科学2001,21,6:26
12Sarcopenia in heart failure: mechanisms and therapeutic strategies显示文摘长期的心失败(CHF ) 是一个高度流行的条件在之中老并且与可观的病态, institutionalization 和死亡被联系。在它的先进阶段, CHF 被肌肉质量和力量的损失经常伴随。Sarcopenia 是活跃地与大量不利健康结果由于它的协会在最近的年里被学习了的衰老老人症候群。这评论的目标是讨论在 CHF 和 sarcopenia 之间的关系,与分享的 pathophysiological 小径和处理的一个焦点。营养不良,全身的发炎,内分泌的不平衡,和氧化应力看起来连接 sarcopenia 和 CHF。在肌肉发达的水平, ubiquitin proteasome 系统,发信号的 myostatin,和 apoptosis 的改变在 sarcopenia 和 CHF 被描述了并且能在肌肉质量和功能的损失起一个作用。阻碍肌肉在 CHF 病人浪费的前进的可能的治疗学的策略包括变换血管收缩素的酶禁止者和 β 的蛋白质和维生素 D 补充,结构化的物理锻练,和管理; -blockers。有生长荷尔蒙,睾丸激素,和 ghrelin 的神经质的补充也作为潜在的治疗被讨论。Agnese Collamati Emanuele Marzetti Riccardo Calvani Matteo Tosato Emanuela D'Angelo Alex N Sisto Francesco Landi 2016Journal of Geriatric Cardiology2016,13,7:25
13Photocatalysts for degradation of dyes in industrial effluents:Opportunities and challenges显示文摘Discharging dye contaminants into water is a major concern around the world.Among a variety of methods to treat dye-contaminated water,photocatalytic degradation has gained attention as a tool for treating the colored water.Herein,we review the recent advancements in photocatalysis for dye degradation in industrial effluents by categorizing photocatalyst materials into three generations.First generation photocatalysts are composed of single-component materials (e.g.,TiO2,ZnO,and CdS),while second generation photocatalysts are composed of multiple components in a suspension (e.g.,WO3/NiWO4,BiOl/ZnTiOa,and C3N4/Ag3VO4).Photocatalysts immobilized on solid substrates are regarded as third generation materials (e.g.,FTO/WO3-ZnO,Steel/TiO2-WO3,and Glass/P-TiO2).Photocatalytic degradation mechanisms,factors affecting the dye degradation,and the lesser-debated uncertainties related to the photocatalysis are also discussed to offer better insights into environmental applications.Furthermore,quantum yields of different photocatalysts are calculated,and a performance evaluation method is proposed to compare photocatalyst systems for dye degradation.Finally,we discuss the present limitations of photocatalytic dye degradation for field applications and the future of the technology.Hassan Anwer Asad Mahmood Jechan Lee Ki-Hyun Kim Jae-Woo Park Alex C.K.Yip 2019Nano Research2019,12,5:21
14Hepatitis B virus genotype has no impact on hepatitis B e antigen seroconversion after lamivudine treatment显示文摘AIM: To investigate the association of hepatitis B virus (HBV) genotype and HBeAg seroconversion after nucleotide analogue treatment.METHODS: Chronic hepatitis B patients receiving lamivudine followed up for at least 6 months post-treatment were studied. Consecutive treatment-naive patients who were prospectively followed up in the clinic for at least 18 months were studied as controls. HBeAg seroconversion was defined as loss of HBeAg, appearance of anti-HBe and normalization of alanine aminotransferase for at least 6 months.RESULTS: Thirty-five patients on lamivudine and 96 control patients followed up for 39 (18-49) months were studied.Lamivudine was given for 12 (10-18) months, and patients were followed up for 15 (6-34) months after drug cessation.Genotype B and C HBV were found in 43 and 88 patients and HBeAg seroconversion occurred in 12 (28 %) and 16(18 %) patients, respectively (P=0.30). There was no difference in HBeAg seroconversion between patients infected by genotype B and C HBV in the control (35 % vs 21%, P=0.25) and lamivudine-treated (14 % vs 10 %,P=1.00) groups.CONCLUSION: HBeAg seroconversion after treatment by lamivudine was not influenced by the HBV genotype.Henry Lik-Yuen Chan May-Ling Wong Alex Yui Hui Angel Mei-Ling Chim Ada Mei-Ling Tse Lawrence Cheung-Tsui Hung Francis Ka-Leung Chan Joseph Jao-Yiu Sung 2003World Journal of Gastroenterology2003,9,12:21
15近40年内蒙古候平均气温变化趋势显示文摘基于1964—2003年内蒙古有关台站的逐日气温数据,对前20年(1964—1983年)和后20年(1984—2003年)的候平均气温中值进行了对比,并利用k-means方法进行了候平均气温变化趋势的聚类分析,旨在阐明内蒙古气温变化的时空特点和规律。研究结果表明:内蒙古全境年平均气温普遍上升,没有下降的现象。不同地区、不同季节气温变化格局不同,北部变暖比南部更为明显,冬季和夏末秋初变暖出现得更频繁。绝大部分地区大多数候平均气温都有所上升,而且候平均气温变化存在纬向地带性。大多数台站四季里都有一些显著升温的候,显著升温在冬季发生得更为频繁。同时,有少数几个候出现气温下降的现象,但未达到显著下降的程度。内蒙古绝大部分地区候最高、最低气温都有所升高,但二者的差值在缩小。候最低气温出现时间有所提前,候最高气温出现时间有提前也有推迟,但总体上不同地区候最高、最低气温出现时间更加同步。因此,候最高、最低气温的时空均一性有所增强。候最高气温出现时间与候最低气温出现时间的间隔有扩大迹象。总之,全球气候变暖降低了气温的季节和地区差异。裴浩 Alex Cannon Paul Whitfield 郝璐 2009应用气象学报2009,20,4:19
16Impacts of Weather Conditions Modified by Urban Expansion on Surface Ozone: Comparison between the Pearl River Delta and Yangtze River Delta Regions显示文摘In this paper, the online weather research and forecasting and chemistry (WRF-Chem) model is used to explore the impacts of urban expansion on regional weather conditions and its implication on surface ozone concentrations over the Pearl River Delta(PRD) and Yangtze River Delta(YRD) regions. Two scenarios of urban maps are used in the WRF-Chem to represent the early 1990s (pre-urbanization) and the current urban distribution in the PRD and the YRD. Month-long simulation results using the above land-use scenarios for March 2001 show that urbanization increases both the day- and night-time 2-m temperatures by about 0.6℃ and 1.4℃, respectively. Daytime reduction in the wind speed by about 3.0 m s-1 is larger than that for the nighttime (0.5 to 2 m s-1). The daytime increase in the PBL height (> 200 m) is also larger than the nighttime (50-100 m). The meteorological conditions modified by urbanization lead to detectable ozone-concentration changes in the PRD and the YRD. Urbanization increases the nighttime surface-ozone concentrations by about 4.7%-8.5% and by about 2.9%-4.2% for the daytime. In addition to modifying individual meteorological variables, urbanization also enhances the convergence zones, especially in the PRD. More importantly, urbanization has different effects on the surface ozone for the PRD and the YRD, presumably due to their urbanization characteristics and geographical locations. Even though the PRD has a smaller increase in the surface temperature than the YRD, it has (a) weaker surface wind speed, (b) smaller increase in PBL heights, and (c) stronger convergence zones. The latter three factors outweighed the temperature increase and resulted in a larger ozone enhancement in the PRD than the YRD.王雪梅 陈飞 吴志勇 张美根 Mukul TEWARI Alex GUENTHER Christine WIEDINMYER 2009Advances in Atmospheric Sciences2009,26,5:17
17Clinical effects of three types of silicone intubations in repairing lacerations of canaliculus显示文摘潘晓晶 Alex Mao 赵桂秋 孟旭霞 杨珊珊 2009Chinese Journal of Traumatology2009,12,3:16
18深圳市显著排放VOCs的园林植物调查与分析显示文摘对深圳地区的主要园林树种、地带性植被的代表种共计158种植物释放的生物源的挥发性有机物(biogenic volatileorganic compounds,BVOCs)采用流动式、封闭式采样法采样,运至美国进行GC-MS分析测量.结果表明,短穗鱼尾葵(Caryotamitis)、海红豆(Adenanthera pavonina var.microsperma)、杧果(Mangifera indica)、海漆(Excoecoria agalloch)等31种植物具有释放异戊二烯的能力;另有鸡蛋果(Passiflora edulis)、小琴丝竹(Bambusa glaucescens cv.silverstripe)、山苍子(Litsea cubeba)、大型双子铁(Dioon spinulosum)等52种植物具有释放单萜烯类化合物的能力.对红树植物的测量表明,该类植物普遍具有释放单萜烯的能力.上述结果为建立深圳及周边地区的环境质量模型提供了重要数据,同时也可为我国热带亚热带城市大面积绿化以及经济林、生态林和防护林等的树种选择提供参考.黄爱葵 李楠 Alex Guenther Jim Greenberg Brad Baker Michael Graessli 白建辉 2011环境科学2011,32,12:16
19基于TPB和VBN的低碳旅游生活行为影响因素研究模型构建初探显示文摘在文献研究和对旅游活动的特点分析的基础上,提出了低碳旅游生活行为意愿、低碳旅游生活行为态度、主观规范、知觉行为控制、习惯、旅游中的情境、悠逸诉求可能影响低碳旅游生活行为,在计划行为理论和价值-信念-规范理论为理论框架下构建了'低碳旅游生活行为影响因素分析模型',并为模型中的潜变量观测变量设计了测量题项。黄雪丽 路正南 Yasong (Alex) WANG 2013科技管理研究2013,33,21:16
20内毒素诱导大鼠葡萄膜炎的组织平片和切片研究显示文摘目的:探讨内毒素诱导的视网膜脉络膜改变和平片、切片结果的差异。方法:从内毒素注射的Lewis鼠制备视网膜和脉络膜-巩膜复合体平片以及眼组织冰冻切片,并进行免疫组织化学染色。结果:平片上显示,注射后4小时单核细胞浸润,随后,大量的单核巨噬细胞浸润至整个视网膜和脉络膜,脉络膜中尚有MHC-Ⅱ类抗原阳性细胞增多;切片上发现,于注射后一定时期,视网膜和脉络膜中有上述细胞浸润。结论:平片技术为视网膜脉络膜原发性严重受累提供了确凿的证据,内毒素诱导的葡萄膜炎可作为人类全葡萄膜炎的动物模型。杨培增 Alex F. de Vos Lidy Broersma Aize kijlstra 1996中华眼底病杂志1996,12,1:16
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