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先驱膜的连续流体动力学模型
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作者 罗雄平 《力学学报》 EI CSCD 北大核心 2007年第4期455-459,共5页
研究具有先驱膜的流体团扩散的模型.流体团和先驱膜作为一个整体用与组分序参数耦合的Navier- Stokes方程,CHW(Cahn,Hilliard,van der Waales)方程和GNBC(广义Navier边界条件)进行数值模拟和分析.流体团在VW(van der Waals)分子长程... 研究具有先驱膜的流体团扩散的模型.流体团和先驱膜作为一个整体用与组分序参数耦合的Navier- Stokes方程,CHW(Cahn,Hilliard,van der Waales)方程和GNBC(广义Navier边界条件)进行数值模拟和分析.流体团在VW(van der Waals)分子长程力和表面张力以及黏性力的共同作用下开始扩散,纳米尺度厚的先驱膜在VW力达到一定值时缓慢生成,它的长时间演变的剖面形状表现为与理论结果一致的1/x次律.膜的前沿——接触线随时间演变具有幂次律,这种对时间的依赖关系也在实验结果(Leger,1984)中得出.分界面的相对拉伸对时间也具有幂次相似律,但幂次指数比前者要稍微大一点. 展开更多
关键词 先驱膜 广义Navier边界条件 润湿 CHW方程 VW分子长程力
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Improving Demand for Health Services with the Involvement of Community Health Workers: A Case Study of Community Dynamics at Mosango Rural Health Zone in the Democratic Republic of Congo
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作者 John Etshumba Mukulukulu Dosithee Ngo-Bebe +1 位作者 Norbert Kimbamfu Mabanza Fulbert Nappa Kwilu 《Open Journal of Epidemiology》 2020年第3期265-282,共18页
<strong>Introduction:</strong> DRC is one of Sub-Saharan Africa country with high infant and maternal mortality. The major problem is the underuse of health services because of inaccessibility on all front... <strong>Introduction:</strong> DRC is one of Sub-Saharan Africa country with high infant and maternal mortality. The major problem is the underuse of health services because of inaccessibility on all fronts and also the population under-information to the health and development problems. Community participation is one of the basic requirements and basic principles of the Primary Health Care to solve this problem. That is why we choose Mosango RHZ to assess the improvement of demand for health services with the involvement of community health workers. <strong>Methods:</strong> We conduct a cross-sectional study carried out in Mosango RHZ in 2019. The study combined a mixed method (quantitative and qualitative) based on the realist evaluation approach which takes into account the Context-Mechanisms-Effects explained in the conceptual framework model. <strong>Results:</strong> Four predictive factors determine the improvement of health indicators with the involvement of CHWS in activities of the Mosango RHZ: Having attended school (p = 0.000;OR = 0.150);Having sufficient theoretical knowledge on malaria, diarrhoea, pneumonia, malnutrition, availability of inputs to treat these diseases (p = 0.004;OR = 0.192);Having taken the training as CHWS and Having undergone more than one training as CHW (p = 0.013;OR = 0.074). This result corroborated with other studies carried in low- and middle-income countries like DRC. <strong>Conclusion:</strong> The involvement of CHWs on improving demand for health services is effective in Mosango RHZ. The improvement of health service indicators and the effectiveness of this community intervention were conditioned by capacity building of the CHWs, the availability of inputs and the involvement of the community in the activities of the health zone through the Community Action Cells. 展开更多
关键词 chws Health Services Utilization Mosango Rural Health Zone Realist Evaluation Democratic Republic of Congo
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结合CHW14井实例浅谈水平井事故预防措施 被引量:1
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作者 安俊 刘丰 +1 位作者 杨万忠 秦欣荣 《中国高新技术企业》 2010年第22期139-141,共3页
彩南油田彩参2井区属于开发老区,极易发生卡钻事故,一旦发生卡钻事故,损失巨大。通过彩参2井区CHW14水平井事故的发生、事故成功解除,以该井为例,总结出水平井施工过程中的事故预防措施,希望对该地区水平井安全施工能提供一些实践应验。
关键词 彩南油田 水平井事故预防 卡钻 侧钻 CHW14井
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CHW反渗透装置特征及调试
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作者 张关龙 戴信林 《净水技术》 CAS 1995年第2期19-20,共2页
九一年十一月底,上海灯泡厂为了满足显像管生产需要,引进了三套CHW反渗透装置,(CHW在沪合资企业:上海彰华膜净化有限公司).由于原有国产予处理系统产水SDI>5,影响了反渗透装置正常调试投运.根据CHW反渗透装置特性,对原予处理系统作... 九一年十一月底,上海灯泡厂为了满足显像管生产需要,引进了三套CHW反渗透装置,(CHW在沪合资企业:上海彰华膜净化有限公司).由于原有国产予处理系统产水SDI>5,影响了反渗透装置正常调试投运.根据CHW反渗透装置特性,对原予处理系统作了适当改进,于九四年五月起正式投运. 展开更多
关键词 水处理 CHW反渗透装置 调试 砂滤器
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Community health worker model for health care delivery and environment programs focused on initiatives in USA and India
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作者 Muskaan Chhibber Pranav Selvan +4 位作者 Gurvinder Singh Amartya Dave Akram Alnounou Sandeep Bajaj Melishia Bansa 《History & Philosophy of Medicine》 2021年第1期1-7,共7页
Community health workers are equipped with the tools and resources necessary to bring about a change in the form of a rapid chain reaction.The community health workers model focuses on the practices,strategies,plans,a... Community health workers are equipped with the tools and resources necessary to bring about a change in the form of a rapid chain reaction.The community health workers model focuses on the practices,strategies,plans,and implementation techniques needed to organize a community health event based on diverse agendas:health,environment,and minorities.This model encompasses past experiences as a guide with tested strategies to assist future health interns with a ground framework and resources to showcase the importance of adopting healthy and environmentally friendly practices.The basic outline of the model is based on data collected from various community health events in Illinois(United States of America)and New Delhi(India).These events included back to school fairs,cleanliness drives,health camps,and educational events.As community health workers can help in implementing better practices in the masses through one-on-one interactions,this model of community health worker programs would outline event organization tips,predicted outcomes,targeted audience,and required material templates.The next phase of this model highlights utilizing the data and experience from these events to report to the health ministries of different countries for the incorporation of the proposed practices in their health agendas and policies.This model,if implemented unanimously,could bring about a revolution in the arena of health workers.They will be assisted at each step,will establish connections with health workers globally,and share their health and environment-based agendas to collaborate and organize important events.This model envisions a strong established network of community health workers,display of their agenda,and creation of a ripple effect throughout the society by the means of these programs. 展开更多
关键词 CHW Community health workers Health care Delivery PROGRAMS MODEL
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The conceptual framework and assessment methodology for the systematic reviews of community-based interventions for the prevention and control of infectious diseases of poverty 被引量:5
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作者 Zohra S Lassi Rehana A Salam +1 位作者 Jai K Das Zulfiqar A Bhutta 《Infectious Diseases of Poverty》 SCIE 2014年第1期199-205,共7页
This paper describes the conceptual framework and the methodology used to guide the systematic reviews of community-based interventions(CBIs)for the prevention and control of infectious diseases of poverty(IDoP).We ad... This paper describes the conceptual framework and the methodology used to guide the systematic reviews of community-based interventions(CBIs)for the prevention and control of infectious diseases of poverty(IDoP).We adapted the conceptual framework from the 3ie work on the‘Community-Based Intervention Packages for Preventing Maternal Morbidity and Mortality and Improving Neonatal Outcomes’to aid in the analyzing of the existing CBIs for IDoP.The conceptual framework revolves around objectives,inputs,processes,outputs,outcomes,and impacts showing the theoretical linkages between the delivery of the interventions targeting these diseases through various community delivery platforms and the consequent health impacts.We also describe the methodology undertaken to conduct the systematic reviews and the meta-analyses. 展开更多
关键词 IDoPs Conceptual framework Prevention and control Community platforms chws
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Community based interventions for the prevention and control of tuberculosis
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作者 Ahmed Arshad Rehana A Salam +3 位作者 Zohra S Lassi Jai K Das Imama Naqvi Zulfiqar A Bhutta 《Infectious Diseases of Poverty》 SCIE 2014年第1期261-270,共10页
In 2012,an estimated 8.6 million people developed tuberculosis(TB)and 1.3 million died from the disease.With its recent resurgence with the human immunodeficiency virus(HIV);TB prevention and management has become fur... In 2012,an estimated 8.6 million people developed tuberculosis(TB)and 1.3 million died from the disease.With its recent resurgence with the human immunodeficiency virus(HIV);TB prevention and management has become further challenging.We systematically evaluated the effectiveness of community based interventions(CBI)for the prevention and treatment of TB and a total of 41 studies were identified for inclusion.Findings suggest that CBI for TB prevention and case detection showed significant increase in TB detection rates(RR:3.1,95%CI:2.92,3.28)with non-significant impact on TB incidence.CBI for treating patients with active TB showed an overall improvement in treatment success rates(RR:1.09,95%CI:1.07,1.11)and evidence from a single study suggests significant reduction in relapse rate(RR:0.26,95%CI:0.18,0.39).The results were consistent for various study design and delivery mechanism.Qualitative synthesis suggests that community based TB treatment delivery through community health workers(CHW)not only improved access and service utilization but also contributed to capacity building and improving the routine TB recording and reporting systems.CBI coupled with the DOTS strategy seem to be an effective approach,however there is a need to evaluate various community-based integrated delivery models for relative effectiveness. 展开更多
关键词 Community-based interventions TUBERCULOSIS DOTS integrated delivery chws
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