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全国心脏瓣膜外科学术会议

作者： Jorge Salazar Lars Nolke Anthony Azakie Tom r．karl MD Division of Pediatric Cardiothoracic Surgery University of California San Francisco USA

Background Pulmonary insufficiency is usually well tolerated after repair of tetralogy of Fallot (TOF) . Many accepted surgical options for repair of TOF will result in some degree of pulmonary insufficiency. This may result in late, progressive right ventricular dilation and dysfunction, with increasing fatigue, lower limb edema, arrhythmias, and sudden *** Our objective was to review our experience with late pulmonary valve implantation (PVI) after repair of TOF and to evaluate the relative benefits and risks of operation. Methods. Patients who underwent late PVI after TOF repair from June, 2002 to April 30, 2004 were reviewed. Sources included patients’ hospital charts and echocardiograms. Follow - up was performed by the primary cardiologist. results Ten patients had elective, late PVI. Average time after initial repair was 20.0 years (range 1,5 - 43 years, median 19 years) . There was no hospital mortality and all patients demonstrated significant symptomatic improvement. Pre - operatively, 9 of 10 patients were in New York Heart Association class Ⅲ - IV. After PVI, all patients were in class Ⅰ - Ⅱ (average class improvement of 1.7) . Left ventricular ejection fraction was significantly improved (EF from 62.1 ± 4.7 % to 70.2 ±4.9 ％, p =0.0001), as was fractional shortening (34.0±5.0 ％ to 40.0 ±4.2 ％, p = 0.01) . right ventricular diameter also decreased significantly (from 32.3 ± 7.5 mm to 24.4 ±5.4 mm, p = 0.0005) . All PVI were performed with Carpentier - Edwards bovine pericardial prostheses, with sizes ranging from 19 mm to 27 mm. Average hospital stay was 5.4 days (range 4-7 days) . One patient had preoperative ventricular fibrillation, requiring resuscitation and an implantable cardiac defibrillater (ICD) before PVI, and another patient needed ICD at the time of PVI because of ventricular arrhythmias. After PVI, patients’ QrS duration decreased significantly (155.2 ± 27.1 to 140±21.2, p = 0.048) . The mean follow-up period was 12.5 months (ran

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移动电话射频电路的电源设计

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电子技术（上海） 2006年第2期33卷 48-50页

作者： karl r Volk

低成本小型化已经不容置疑地成为移动电话发展的必然方向,采用特制的电源管理芯片来处理新款手机的用电需求,可能是比较切实可行的解决方案,并被业界广泛采用。

关键词：移动电话电源设计射频电路电源管理芯片用电需求小型化手机

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Levels and distribution of polybrominated diphenyl ethers in Three Gorges reservoir,China

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Emerging Contaminants 2017年第1期3卷 40-45页

作者： Jingxian Wang Yonghong Bi Bernhard Henkelmann Zeyu Wang Gerd Pfister karl-Werner Schramm State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan430072China Helmholtz Zentrum München-German research Center for Environmental Health(GmbH) Molecular EXposomics(MEX)Ingolst€adter Landstr.1D-85764NeuherbergGermany Technische Universit€at München Wissenschaftszentrum Weihenstephan für Ern€ahrungLandnutzung und UmweltDepartment für BiowissenschaftenWeihenstephaner Steig 2385350FreisingGermany Department of Engineering University of WaterlooOntarioCanada

Polybrominated diphenyl ethers(PBDEs)were investigated in water,sediments,suspended sediments and biofilms in Three Gorges reservoir(TGr),*** showed that dissolved bioavailable PBDEs in water of TGr collected with semipermeable membrane device(SPMD)-based virtual organisms(VOs)were very low in the range of *** 811 pg/g lipid and the detected compounds were mainly low molecular BDEs such as BDE-15,17,28,47,49,66,99 and *** PBDE levels in the sediment core collected near the dam were also very low in the range of 84e300 pg/g dw and the detected compounds were mainly large molecular BDEs such as BDE-196,197,206,207 and *** suspended sediments and biofilms,the levels of PBDEs ranged from 298 to 52,843 pg/g dw and the detected compounds were also mainly large molecular BDEs such as BDE-196,197,201,203,206,207,208 and *** dominant compound was BDE-209 which accounted for more than 90%of the total ***,large molecular BDEs tended to be attached on fine *** vertical profile of BDEs on suspended sediments(SS)showed that SSs in the middle depth of water contained high level of *** phenomenon indicated that most of BDE-209 did not settle into the sediment in front of the dam,instead transported further to downstream.

关键词： PBDE Virtual organism(VO) Sediment Suspended sediment(SS) Biofilm Three Gorges reservoir(TGr)

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Digital chromoendoscopy utilization in clinical practice: A survey of gastroenterologists in Connecticut

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World Journal of Gastrointestinal Pharmacology and Therapeutics 2016年第2期7卷 268-273页

作者： karl M Langberg Neil D Parikh Yanhong Deng Maria Ciarlegio Loren Laine Harry r Aslanian Section of Digestive Diseases Yale University School of Medicine Department of Biostatistics Yale School of Public Health VA Connecticut Healthcare System

AIM:To use a survey to characterize and identify potential barriers to the use of digital chromoendoscopy(DC)by practicing ***:An anonymous,internet-based survey was sent to gastroenterologists in Connecticut who were members of one of three national gastrointestinal *** survey collected demographic information,frequency of DC use,types of procedures that the respondent performs,setting of practice(academic vs community),years out of training,amount of training in DC,desire to have DC training and perceived barriers to DC *** were collected *** primary endpoint was the proportion of endoscopists utilizing *** between the various data collected were analyzed usingχ2 ***:One hundred and twenty-four gastroenterologists(48%)of 261 who received the online survey ***-eight percent of surveyed gastroenterologists have used DC during the performance of upper endoscopy and 81%with lower *** was used in more than half of procedures by only 14%of gastroenterologists during upper endoscopy and 12%during lower ***-three percent(upper)and 21%(lower)used DC more than one quarter of the *** was used for 10%or less of endoscopies by 60%(upper)and53%(lower)of *** reported lack of training as the leading deterrent to DC use with36%reporting it as their primary ***-nine percent of endoscopists never received formal training in *** of time(30%of respondents),lack of evidence(24%)and lack of reimbursement(10%)were additional *** were no differences in DC use relative to academic vs community practice setting or years out of ***:DC is used infrequently by most endoscopists,primarily due to a lack of *** opportunities should be expanded to meet the interest expressed by the majority of endoscopists.

关键词： Endoscopy Surveys and questionnaires Gastrointestinal diseases Clinical practice patterns Esophageal neoplasms Colonic neoplasms Narrow band imaging Flexible spectral imaging color enhancement I-scan

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Monitoring of organochlorine pesticides in the urban air of Dalian, China with semipermeable membrane devices

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Chinese Science Bulletin 2014年第24期59卷 2957-2965页

作者： Xiuhua Zhu Taian Shi Bernhard Henkelmann Gerd Pfister Wei Wang Jun Mu Xiaoxiao Li Liangjun Han karl-Werner Schramm School of Environmental and Chemical Engineering Dalian Jiaotong University Helmholtz Center Munich-German research Center for Environmental Health (GmbH) Molecular EXposomics (MEX)Ingolstdter Landstr. 1 85764 Neuherberg Munich Germany Dalian Meteorological Observatory Department fr Biowissenschaften Technische Universitt Mnchen Weihenstephaner Steig 23 85350 Freising Germany

The concentrations of 28 organochlorine pesticides(OCPs)in the urban air of Dalian,China were measured using semipermeable membrane devices(SPMDs)for the first ***-hexachlorocyclohexane(a-HCH),b-HCH,pentachlorobenzene(PentCB),hexachlorobenzene(HexCB),4,40-dichlorodiphenyltrichloroethane(4,40-DDT),4,40-dichlorodiphenyldichloroethene,endosulfan-I and endosulfan-II were the predominant OCPs in the urban air of *** concentration of OCPs sequestrated by SPMDs(CSPMD)ranged from undetected to 56,772 pg SPMD-1and had a linear correlation with the reciprocal of the average ambient atmospheric temperature(1/T).The CSPMDof PentCB and HexCB had negative correlations with T,whereas the other detected OCPs had a positive *** source of HCHs,DDTs,HexCB,PentCB,chlordane,and endosulfan in the air were also *** OCPs in the urban air of Dalian could be attributed to the seasonal usage of pesticides,combustion,volatilization of aged OCPs from soil,water,plants,and long-range atmospheric transport.

关键词：有机氯农药半透膜装置空气监测城市空气二氯二苯基三氯乙烷大连中国浓度范围

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Alle rder stehen still…

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德语人文研究 2005年第2期 17-19页

作者： karl Heinz Wüst

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Synthesis and Anti-inflammatory Activity of a Novel Series of 9,10-Dihydro-4H,8H-chromeno[8,7-e][1,3]oxazin-4-one Derivatives

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Chemical research in Chinese Universities 2010年第2期26卷 268-271页

作者： LIU Xiao-ping WANG Ying LAN Hui-yu SONG Ai-hua TSIM karl Wah-keung DONG Tina Ting-xia HU Chun Department of Organic Chemistry School of Pharmaceutical Engineering Shenyang Pharmaceutical University Shenyang 110016 P. R. China Tianjin Key Laboratory of Chemistry and Analysis of Chinese Materia Medica Tianjin University of Traditional Chinese Medicine Tianjin 300193 P. R. China Department of Biology The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. China

Flavonoids exhibit a wide range of biological activities including anti-inflammatory activity, while some 1,3-benzoxazine derivatives show anti-inflammatory activity. In order to explore the novel anti-inflammatory agents, based on the principles of bioisosterism and hybridization, ten novel ehromeno[8,7-e][1,3]oxazin-4-ones were syn- thesized and characterized with Ir, ^1H NMr, MS and elemental analyses. The anti-inflammatory activities of the target compounds were evaluated via the croton oil-induced ear oedema test in Swiss mice. According to screened resuits, some target compounds show potent anti-inflammatory activity.

关键词： Anti-inflammatory activity Heterocycle Flavone Chromeno[8,7-e]oxazin-4-one

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自旋飞行器姿态运动的动态-测量系统建模

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中国空间科学技术 2007年第4期27卷 1-6,20页

作者：胡绍林陈如山 karl Meinke Huajiang Ouyang 南京理工大学瑞典皇家工学院英国利物浦大学

模型化处理是飞行器测控工程的重要技术之一。文章以在轨自旋飞行器的姿态运动为研究对象,采用动力学分析的方法,不仅实现了姿态角演化微分方程与转动角速度微分方程的严格解耦,而且提出并建立带关联方程的动态-测量系统模型。基于该系... 详细信息

模型化处理是飞行器测控工程的重要技术之一。文章以在轨自旋飞行器的姿态运动为研究对象,采用动力学分析的方法,不仅实现了姿态角演化微分方程与转动角速度微分方程的严格解耦,而且提出并建立带关联方程的动态-测量系统模型。基于该系统模型和扩展Kalman滤波/预报算法,建立了姿态角最优估计和转动角速度高精度估计算法。

关键词：姿态控制关联方程数学模型自旋飞行器

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Optics: learning by computing with examples using MathCAD 1

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丛书名： Undergraduate texts in contemporary physics

2003年

作者： karl Dieter Moeller

ISBN: (纸本)9780387953601;0387953604

This book is intended for a one-semester course in optics for juniors and seniors in science and engineering; it uses Mathcad(r) scripts to provide a simulated laboratory where students can learn by exploration and discovery instead of passive absorption. The text covers all the standard topics of a traditional optics course, including: geometrical optics and aberration, interference and diffraction, coherence, Maxwells equations, wave guides and propagating modes, blackbody radiation, atomic emission and lasers, optical properties of materials, Fourier transforms and FT spectroscopy, image formation, and holography. It contains step by step derivations of all basic formulas in geometrical, wave and Fourier optics. The basic text is supplemented by over 170 Mathcad files, each suggesting programs to solve a particular problem, and each linked to a topic in or application of optics. The computer files are dynamic, allowing the reader to see instantly the effects of changing parameters in the equations. Students are thus encouraged to ask'what... if'questions to assess the physical implications of the formulas.

关键词： Geometrical optics

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采用LDO改善白光LED的镇流性能

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电子产品世界 2004年第1A期11卷 79-80页

作者： karl r. Volk Maxim Integrated Products 公司

白光LED问世才不过几年的时间,就已经赢得了人们的喜爱.由于它们能发出比白炽灯泡更洁白的光线,而且使用起来比荧光灯管更方便,在各种照明应用(如手持式电子产品的闪光信号灯、显示背光等)中所占的市场份额不断稳步扩大.

关键词：白光性能闪光信号灯照明应用荧光灯管市场份额电子产品白炽灯泡手持式显示光线背光

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