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城北污水处理厂紫外线消毒等效生物验证剂量测定

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中国给水排水 2008年第5期24卷 5-9,13页

作者：李东尹新哲陈淑芬 Karl G．linden 重庆大学生物工程学院博士后流动站重庆400044 重庆大学资源环境学院重庆400044 杜克大学土木与环境工程系美国

使用准平行紫外光束仪测定了重庆城北污水处理厂终沉池出水中粪大肠菌群的紫外线响应曲线,验证了常用剂量下紫外线辐照强度与时间的互为倒数关系,并对验证微生物和商业UV消毒反应器紫外线剂量分布模式的选择进行了讨论。结果显示,当进... 详细信息

使用准平行紫外光束仪测定了重庆城北污水处理厂终沉池出水中粪大肠菌群的紫外线响应曲线,验证了常用剂量下紫外线辐照强度与时间的互为倒数关系,并对验证微生物和商业UV消毒反应器紫外线剂量分布模式的选择进行了讨论。结果显示,当进水粪大肠菌群的浓度取3.0×106MPN/L时,与104MPN/L和103MPN/L两个排放标准对应的目标紫外线剂量分别为11.3mJ/cm2和15.8 mJ/cm2,对应的REDMS2分别为28.2 mJ/cm2和40 mJ/cm2。分析发现,当使用等效生物验证剂量(RED)方法确定紫外线消毒系统的处理能力时,进水粪大肠菌群浓度为107MPN/L的取值过于保守,会造成设备处理能力过度富余。

关键词：污水处理厂紫外线消毒等效生物验证剂量粪大肠菌群 MS2噬菌体

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为VoIP解决方案实现最佳音质

电子与电脑 2006年第8期6卷 101-106页

作者： Jan linden Global IP Sound公司

随着互联网语音(Voice over IP,VoIP)的日益普及,确保服务和设备能够提供最佳的音质成为这类解决方案的关键因素.无论是VoIP的商业用户或普通消费者,都期望VoIP的音质至少能够达到现有移动或PSTN电话的水平.这意味着设备及应用开发商面... 详细信息

随着互联网语音(Voice over IP,VoIP)的日益普及,确保服务和设备能够提供最佳的音质成为这类解决方案的关键因素.无论是VoIP的商业用户或普通消费者,都期望VoIP的音质至少能够达到现有移动或PSTN电话的水平.这意味着设备及应用开发商面临着严峻的设计挑战,因为他们必须考虑终端用户的整体音频使用感受.本文将探讨开发商要确保VoIP设备的最佳音质所必须解决的一些问题.

关键词： VoIP 音质 IP设备确保服务 PSTN 商业用户使用感受终端用户开发商互联网

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网络时代的佛教大藏经光盘

浙江佛教 2004年第3期 102-103页

作者： linden 中华佛典宝库网站的首任站长

最近在很多中国佛教徒中手中多了一个先进而内涵丰富的法宝——中华佛典宝库发行的大藏经电脑光盘陆续与大家正式结缘。

关键词：网络时代佛教大藏经光盘佛学辞典影音资料

Single-port laparoscopic cholecystectomy vs standard laparoscopic cholecystectomy:A non-randomized,agematched single center trial

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World Journal of Gastrointestinal Surgery 2015年第8期7卷 145-151页

作者： Yoen TK van der linden Koop Bosscha Hubert A Prins Daniel J Lips Department of Surgery Jeroen Bosch Hospital

AIM: To compare the safety of single-port laparoscopic cholecystectomies with standard four-port ***: Between January 2011 and December 2012 datas were gathered from 100 consecutive patients who received a single-port cholecystectomy. Patient baseline characteristics of all 100 single-port cholecystectomies were collected(body mass index, age, etc.) in a database. This group was compared with 100 age-matched patients who underwent a conventional laparoscopic cholecystectomy in the same period. Retrospectively, per- and postoperative data were added. The two groups were compared to each other using independent t-tests and χ2-tests, P values below 0.05 were considered significantly ***: No differences were found between both groups regarding baseline characteristics. Operating time was significantly shorter in the total single-port group(42 min vs 62 min, P has the potential to be a safe technique with a low complication rate, short in-hospital stay and comparable operating time. Single-port cholecystectomy provides the patient an almost non-visible scar while preserving optimal quality of surgery. Further prospective studies are needed to prove the safety of the single-port technique.

关键词： Single-port Minimal invasive Laparoscopy Safety Fe

Femtosecond laser-assisted fabrication of piezoelectrically actuated crystalline quartz-based MEMS resonators

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Microsystems & Nanoengineering 2023年第2期9卷 295-306页

作者： John linden Neta Melech Igor Sakaev Ofer Fogel Slava Krylov David Nuttman Zeev Zalevsky Marina Sirota Department of Engineering Bar lan UniversityRamat GanIsral Research and Incubation ERCKLAYavneIsrael School of Mechanical Engineering Faculty of EngineeringTel-Aviv UniversityTel AvivIsrael Engineering Department TAMAMIAlYehudIsrael

A novel technology for the precise fabrication of quartz resonators for MEMS applications is *** approach is based on the laser-induced chemical etching of *** main processing steps include femtosecond UV laser treatment of a Cr-Au-coated Z-cut alpha quartz wafer,followed by wet *** laser-patterned Cr-Au coating serves as an etch mask and is used to form electrodes for piezoelectric *** fabrication approach does not alter the quartz's crystalline structure or its piezo-electric *** formation of defects,which is common in laser micromachined quartz,is prevented by optimized process parameters and by controlling the temporal behavior of the laser-matter *** process does not involve any lithography and allows for high geometric design *** configurations of piezoelectrically actuated beam-type resonators were fabricated using relatively mild wet etching conditions,and their functionality was experimentally *** devices are distinguished from prior efforts by the reduced surface roughness and improved wall profiles of the fabricated quartz structures.

关键词： quartz Femto piezoelectric

Cytosolic phospholipase A2alpha mediates electrophysiologic responses of hippocampal pyramidal neurons to neurotoxic NMDA treatment

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Cytosolic phospholipase A2alpha mediates electrophysiologic ...

中国神经科学学会第四次会员代表大会暨第七届全国学术会议

作者： Koji KISHIMOTO David J.linden Adam SAPIRSTEIN Department of Anesthesiology and Critical Care Medicine Johns Hopkins University School of MedicineBaltimoreMD 21287 Department of Neuroscience Johns Hopkins University School of MedicineBaltimoreMD 21287

The arachidonic acid-generating enzyme cPLA2aplha has been implicated in the progression of excitotoxic neuronal ***,the mechanisms of cPLA2aplha toxicity have yet to be ***,we used a model system exposing mouse hippocampal slices to NMDA as an excitotoxic injury,in combination with simultaneous patchclamp recording and confocal Ca imaging of CAl pyramidal *** treatment caused significantly greater injury in WT than in null CA1 *** application of NMDA evoked a slow inward current in voltage-clamped neurons that was smaller in null than in WT ***-clamp recordings were made during and following NMDA exposure by eliciting a single action potential with a brief current *** NMDA exposure,WT CA1 neurons developed a spike-evoked plateau potential and an increased spike-evoked dendritic Ca *** effects were absent in CA1 neurons from cPLA2aplha null mice and WT neurons treated with a cPLA2aplha *** results indicate that cPLA2aplha activity is required for development of aberrant electrophysiologic events triggered by NMDA receptor activation,in part through attenuation of K-channel function.

关键词： action potential arachidonic acid calcium,excitotoxicity

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人类对热带海岸带的影响

自然与资源 1990年第4期26卷 3-9页

作者： Olof linden 林宝

所有的海岸带地区正受到越来越大的人口增长压力，然而，由此赞成的环境恶化，在海面上不如在陆地上那么明显，因此，我们只是刚刚开始认识到许多海岸的浅水区已经受到的损害程度，本文综述了一些反映现状的资料，并讨论了热带浅海生境... 详细信息

所有的海岸带地区正受到越来越大的人口增长压力，然而，由此赞成的环境恶化，在海面上不如在陆地上那么明显，因此，我们只是刚刚开始认识到许多海岸的浅水区已经受到的损害程度，本文综述了一些反映现状的资料，并讨论了热带浅海生境的退化问题。

关键词：热带海岸带生态环境人口增长自然资源

Does magnesium sulfate increase the incidence of postpartum hemorrhage? A systematic review

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Open Journal of Obstetrics and Gynecology 2011年第4期1卷 168-173页

作者： Laura M. Héman Paul J. Q. Van Der linden Department of Gynaecology and Obstetrics Deventer Ziekenhuis

The incidence of Postpartum Hemorrhage (PPH) is increasing in the western world. We hypothesize that magnesium sulfate (MgSO4) could be a contributing factor. MgSO4 might increase the incidence of PPH by induction of vasodilation, tocolytic effects, and effects on the blood like red cell deformity, platelet activity inhibition and a prolonged bleeding time. Based on these effects of MgSO4 a correlation with PPH is suspected. MgSO4 is widely used in the prevention of eclampsia. However, the working mechanism of this effective drug is largely unknown. We performed a systematic search to find all Randomized Controlled trials (RCTs) containing MgSO4 in preeclamsia as well as all MgSO4 studies with information on PPH. Titles, abstracts and references of publications were evaluated for appropriateness and whether they met the inclusion criteria. RCTs about MgSO4 with original data on PPH prevalence were included in our systematic review. We calculated the relative risk of PPH in every study as well as an overall relative risk. Four relevant and valid RCTs were found, totalling 11,621 relevant patients. The relative risk of PPH in women treated with MgSO4 is 0.964 (95% CI 0.886 - 1.050) In this systematic review we found no significant increase in PPH in women treated with MgSO4. However, there is still room for discussion due to the heterogeneity in methods (dosage and duration of treatment), results, and tertiary outcomes, as well as the small number of studies found with respect to this important issue.

关键词： Magnesium Sulfate (MgSO4) Postpartum Hemorrhage (PPH)

The influence of prolapse surgery on sexual activity of women

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Open Journal of Obstetrics and Gynecology 2014年第3期4卷 158-164页

作者： Linde T. van Genugten Paul J. Q. van der linden Department of Gynaecology and Obstetrics Deventer Hospital Deventer The Netherlands

Aims: A prospective study to assess sexual activity in patients with pelvic organ prolapse (POP) and evaluate changes in sexual functioning after surgery. Secondary outcomes were quality of life and anatomical results. Methods: Patients completed the validated Leiden Questionnaire (LQ) and the short form 36 (SF-36) pre- and two months postoperatively. SPSS 19.0 was used for statistical analysis. Results: 74 patients (average age 61.5 years) were approached, of whom 33.8% were sexually inactive due to other reasons than POP. 23 patients (average age 56.7 years) were included for further analysis. Postoperatively we found a significant improvement for orgasm during intercourse. The remaining domains didn’t change significantly. A trend is noted, indicating that sexual activity stayed unchanged in 82.6% of patients. Dyspareunia improved in 47.8% of patients, lubrication in 34.8% and sexual satisfaction in 40%. Quality of life improved in 73.9%. We found a significant improvement in POP grading. Conclusion: More than a third of the patients presenting with POP are not sexually active due to other reasons than POP. POP surgery appears to improve lubrication, dyspareunia, sexual satisfaction and orgasm during intercourse in a considerable part of patients. Furthermore, there’s no negative influence on sexual activity. POP surgery improves quality of life in the majority of patients.

关键词： Sexual Activity Sexual Functioning Pelvic Organ Prolapse Surgery Leiden Questionnaire