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关于青草沙水库南侧换排水口工程对长兴岛北环河水系的改善作用
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作者 秦悦 《中文科技期刊数据库(全文版)工程技术》 2023年第6期72-75,共4页
近年来,随着长兴岛的开发建设,水环境质量问题日益突出。由于长兴岛是由不同时期围垦形成的沙岛合并而成,河道水系分散独立,河道坡降平缓,河网水系框架尚未完全形成,存在水流滞留时间长,泄流不畅的现象,加之部分河道接纳周边地区未经处... 近年来,随着长兴岛的开发建设,水环境质量问题日益突出。由于长兴岛是由不同时期围垦形成的沙岛合并而成,河道水系分散独立,河道坡降平缓,河网水系框架尚未完全形成,存在水流滞留时间长,泄流不畅的现象,加之部分河道接纳周边地区未经处理的生活污水,农田径流,使得河道水质遭受一定污染,难以达到上海的生态水源岛和独具特色的景观旅游岛的目标定位需求。本文主要介绍青草沙水库南侧换排水口工程的建设内容,以及建成后对长兴岛北环河水系的改善情况。 展开更多
关键词 青草沙水库 北环河 换排水 水质
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Drainage does not Promote Post-operative Rehabilitation After Bilateral Total Knee Arthroplasties Compared With Nondrainage 被引量:6
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作者 Yu Fan Yong Liu +4 位作者 Jin Lin Xiao Chang Wei Wang Xi-sheng Weng Gui-xing Qiu 《Chinese Medical Sciences Journal》 CAS CSCD 2013年第4期206-210,共5页
Objective To assess the effects of suction drainage versus nondrainage on the post-operative rehabilitation of patients receiving primary bilateral total knee arthroplasties(TKA).Methods A prospective study including ... Objective To assess the effects of suction drainage versus nondrainage on the post-operative rehabilitation of patients receiving primary bilateral total knee arthroplasties(TKA).Methods A prospective study including 40 patients was conducted.These patients were diagnosed with osteoarthritis and underwent primary bilateral TKA between October 2007 and September 2009 with the same operation team.A suction drainage was placed by randomization in only one knee for each patient,while the other knee as self-control.Pain visual analogue scale score,extremity swelling,wound healing,range of motion and incidence of early post-operative complications between the drained and nondrained group were compared statistically.Results Each patient was followed up for 12 months.Placing drainage did not relieve the pain,extremity swelling,ecchymosis,or reduce the incidence of early complications(all P>0.05).Conclusions Suction drainage in TKA does not exhibit substantial advantages in promoting post-operative rehabilitation after unsophisticated TKA,compared with nondrainage.On the other hand,it might complicate the surgical operation,and increase the incidence of post-operative hemorrhage and retrograde infection.Thus we do not recommend suction drainage in unsophisticated TKA. 展开更多
关键词 total knee arthroplasty drainage self control
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