25MW机组DEH系统改造中的技术特点和创新

本文针对某电厂25MW汽轮发电机组的运行特点和性能，介绍了25MW汽轮机液压调节系统实施透平油低压纯电调DEH改造的方案，并提出了改造的创新特点，以及改造调试过程中遇到的问题和解决方法，总结了改造中的经验。     

养分循环与生态城市 ——人居环境视角下的综述与展望

当前,全球养分循环和代谢已经出现了相当严重的问题,但却被人居环境领域长期忽视.基于这一背景,介绍近期国际学术界关联生态城市与养分循环的相关论述,从养分循环对生态城市的作用机制、城市养分循环的关键策略(城市农业)、城市养分循环的技术体系及考虑养分循环的生态城市规划建设探索等四个方面进行了文献梳理和研究综述,最后总结当前研...     

兰州市绿色低碳循环发展的路径探赜

绿色低碳循环发展是促进经济社会发展全面绿色转型、解决兰州市资源环境生态问题的基础之策。当前,兰州市绿色低碳循环发展面临生态保护和治理任重而道远、产业结构仍需优化、现代流通体系存在短板、消费领域绿色亟待转型、绿色技术创新面临障碍的现实困境,因此,可以通过为绿色低碳循环发展提供良好生态保障,健全绿色低碳循环发展的生产体系、流通体系和技术创新体系,推进和实现兰州市绿色低碳循环发展。     

FANUC系统数控车循环指令应用技巧

FANUC系统是数控机床的常用控制系统之一.FANUC系统的循环指令可分单一循环指令和多重循环指令.循环是指刀具从起刀点开始空行程和切削行程到返回起刀点所形成的一个封闭循环轨迹,如图1虚线所示.执行单一循环指令时,刀具每次只走一个封闭循环轨迹,执行多重循环指令时,刀具每次走多个封闭循环轨迹.     

谈PDCA循环与高职人才培养质量评价工作的有效结合

一、PDCA循环的内涵 PDCA循环控制法指的是戴明循环.戴明循环是一个质量持续改进模型,它包括持续改进与不断学习的四个循环反复的步骤,即计划(Plan)、执行(Do)、检查(Check/Study)、处理(Act).戴明循环有时也被称为戴明轮(Deming Wheel)或持续改进螺旋(Continuous Improvement Spiral).PDCA循环的运行表现为整个管理系统的各个层次、各个环节都在进行计划→实施→检查→处理这种循环.它体现了系统运行的内在逻辑.其中"计划"是明确目标、制订方案的过程,它是整个循环的起点和基础;"实施"是循环中的主体,是整个循环成败的关键;"检查"对整个循环起着控制和把关的作用;"处理"则是一个总结与改进的环节,是使循环得以自我完善的重要阶段.戴明循环法的特点在于:大环套小环,不断推动工作迈上新的台阶.     

浅谈宏程序条件和循环语句的灵活运用

宏程序是一种高级数控编程语言,与常见数控系统编程指令不同,该程序中通常带有变量、运算符、表达式及循环语句等。其中,循环语句是宏程序的灵魂部分,如何熟练并灵活地运用循环语句,是许多初学宏程序者感到最难的地方。为此,笔者通过一个例子展示循环语句的特点及掌握技巧。     

武汉城市圈两型社会建设经验及其借鉴

一、武汉两型社会建设的主要经验(一)循环经济发展为节约资源、保护环境,目前国内各大城市几乎都已取得了发展循环经济和环保产业的共识。武汉城市圈在两型社会建设中,也把发展循环经济作为突破口,在产业布局和规划上以产业为链条、以园区为载体,从城市圈内外循环、产业配套循环、园区之间循环、企业内部循环等多个层次构建循环经济发展体系。     

如何运用复合型车削固定循环指令进行零件编程加工

<正>在FANUC系统数控车床中,通过使用G90、G94单一固定循环指令,不仅使编写程序简洁明了,更减少了编程过程中的出错率。但还有一类循环指令称之为复合型车削固定循环指令(G71、G73、G70),它能使程序进一步得到简化,     

戴明循环

戴明循环或称PDCA循环、PDSA循环。戴明循环研究起源于20世纪20年代，有“统计质量控制之父”之称的著名的统计学家沃特&#183;阿曼德&#183;休哈特（Walter A．Shewhart）在当时引入了“计划-执行-检查（Plan—Do-See）”的概念。戴明后将休哈特的PDS循环进一步发展成为：计划-执行-检查-处理（Plan—Do—Study—Act）。     

城市循环经济发展压力问题的研究

一、城市循环经济发展压力的概念 在现代社会中,城市承载了人类社会生产、生活的大部分功能。因此，城市循环经济发展水平决定了其所在区域的循环经济的发展程度。目前，对城市循环经济发展的研究主要集中在以下几个方面：一是对城市循环经济的发展状况建立科学评价指标体系：二是探讨城市循环经济发展过程中政府政策的构成：三是对特定类型的城市，分析其循环经济的发展；四是对城市循环经济发展规划问题的讨论：五是对建立城市循环经济体系问题的思考。     

A COMPARISON OF THE RELATIONSHIP ENHANCEMENT PROGRAM AND THE MINNESOTA COUPLE COMMUNICATION PROGRAM*

This study assessed the comparative effectiveness of the Relationship Enhancement Program (RE) and the Minnesota Couples Communication Program (CC). Couples in the treatment groups (RE-26, CC-20) received RE and CC training from certified leaders. Results at posttesting showed that RE was more effective in increasing marital communication (both behavioral and self-report) and marital satisfaction than CC. A three-month follow-up showed that RE couples' outcome remained superior to CC couples'. Additional analyses revealed that couples' experiencing low marital satisfaction prior to training were best helped by the RE program.     

提高碳化炉炉底蒸汽压力的讨论

介绍杨树浦煤气制气分公司直立式碳化炉炉底蒸汽的作用、蒸汽压力变动前后的比较等。     

Social Capital,Knowledge, and the Environment: The Effect of Interpersonal Communication on Climate Change Knowledge and Policy Preferences

Abstract

This article contributes to the literature on social capital and the environment in two ways. First, we identify a relationship between interpersonal discussion networks and assessed and perceived individual scientific knowledge. We then examine if knowledge mediates the relationship between discussion networks and policy preferences about climate change (CC). Using nationally representative survey data, we examine the extent to which an individual’s interpersonal discussion network is related to knowledge on CC and support for CC policy. We find those who discuss climate have higher levels of perceived knowledge, but discussion is not related to individuals’ levels of assessed knowledge. We also find that knowledge does not fully mediate the relationship between discussion and policy preferences, implying that interpersonal discussion may influence CC policy preferences independent of perceived and assessed knowledge. We conclude with remarks about the importance of knowledge perception as well as offer some avenues to extend this research.     

The development of core competencies for the practice of marriage and family therapy

In response to a series of national policy reports regarding what has been termed the "quality chasm" in health and mental health care in the United States, in January 2003, the American Association for Marriage and Family Therapy convened a task force to develop core competencies (CC) for the practice of marriage and family therapy (MFT). The task force also was responding to a call for outcome-based education and for the need to answer questions about what marriage and family therapists do. Development of the CC moves the field of MFT into a leading-edge position in mental health. This article describes the development of the CC, outcomes of the development process for the competencies, and recommendations for their continued development and implementation.     

Cultural-Historical Activity Theory and Cultural Community Psychology: The Potential for Greater Commonality

Greater commonality for Cultural-Community Psychology (CC) and cultural-historical activity theory (CHAT) is advocated. The potential for greater commonality is exemplified by a series of examples of the many researchers who now use concepts from both CC and CHAT, including our own career work in culture studies, community development, delinquency, and education. A centering whorl of science is observable in the density of intersections across fields, and research on common propositions, such as the current intersections of intersubjectivity and joint activity, as studied by CC, CHAT, cognitive science, psychoneurology, and intervention theories. Therein exists the promise of a new center of commonality in psychology.     

Psychiatric patients' perceptions of constant care

1. Patients need and want structure during CC. 2. Respect for patients experiencing CC is demonstrated when caregivers involve patients in all levels of decision making. 3. Patients identified the behaviors of caring, health teaching, and role modeling as helpful to their recovery. 4. Patients have two primary resentments--a lack of privacy and continuity of care.     

Pravastatin improves the impaired nitric oxide-mediated neurogenic and endothelium-dependent relaxation of corpus cavernosum in aged rats

Abstract

Aim: The aim of this study was to investigate the effect of pravastatin treatment on diminished corpus cavernosum (CC) function associated with aging.

Methods: Male rats were divided into three groups as adult rats (12–14 weeks old), aged rats (72–80 weeks old) and aged rats given 10?mg/kg/d pravastatin in drinking water for six weeks. Blood pressure was measured by tail-cuff method. Total cholesterol, low-density lipoprotein-cholesterol, high-density lipoprotein-cholesterol, triglycerides and testosterone levels were estimated in blood. Changes in expression levels of endothelial nitric oxide synthase (eNOS), phosphorylated eNOS (p-eNOS) (Ser-1177), neuronal nitric oxide synthase (nNOS), NADPH oxidase subunit gp91^phox, Rho A and Rho kinase (ROCK2) in CC were assessed by immunohistochemistry. Nitric oxide (NO)-mediated endothelium-dependent and neurogenic CC relaxation were evaluated by acetylcholine (ACh, 0.1?nM–100?µM) and electrical field stimulation (EFS; 30?V, 5?ms, 2–32?Hz), respectively.

Results: In aged rats, NO-mediated, both endothelium-dependent and neurogenic CC relaxation, were significantly impaired as compared to adult rats. Besides, eNOS, p-eNOS and nNOS expressions decreased significantly in CC from aged rats, while gp91^phox, RhoA and ROCK2 expressions increased significantly. The diminished relaxation in response to ACh or EFS as well as the changes in expression of these proteins in aged rats were significantly improved by pravastatin treatment.

Conclusion: Pravastatin improves NO-mediated CC relaxations of aged rats probably by inhibiting NADPH oxidase/Rho kinase pathways, and this effect does not seem to be associated with lipid lowering effect of this drug.     

An evaluation of undergraduate public administration programs at Turkish Universities: Reviewing the literature and proposing a model of cultural competence development

This study aims to identify the main predictors of cultural competence (CC). In the study, the cultural competence of the public administration students was analyzed. A total of 599 public administration students from twenty public and two foundation universities in eighteen different provinces of Turkey responded to a survey. The questionnaire survey was derived from a literature review; validated by exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The study proposes a CC evaluation model with five principal attributes: political awareness, civic action, belief in collective action, social justice attitudes, and ethical leadership. Accordingly, the model included 29 items that address all aspects of cultural competence. The model can be used to evaluate the CC level of public administration students. Besides, this model can also be applied in public organizations to evaluate their responsiveness to the public. Because public institutions today are supposed to be responsive to the cultural needs of citizens.     

Constructing Critical Conversations in Social Work Supervision: Creating Change

Clinical social work supervision is not immune to enactments of racial and social injustice, prejudice, power and privilege rampant in our social environment and institutions. These dynamics are active in all social interactions. Most often felt on impact, these remain underground and unevenly experienced—though predominantly by people representing intersecting marginalized identities. Such real enactments can be misunderstood or avoided in social work supervision. Negative consequences not only impede learning for the supervisee and supervisor, and affect clinical understanding of client care they also perpetuate injustice based on power and social locations. Social work supervision provides space for critical analysis to identify and alter dynamics of power, privilege, and social oppression. The critical conversations (CC) model provides a framework to illuminate and examine power dynamics in order to produce change with parallel insight and action—supervisee, supervisor, and client care. Supervisee and supervisor gain capacity to engage in reflection, examine personal and professional values, hold tension and tolerate ambiguity, use one self critically, articulate ideas and insights thoughtfully and effectively, as well as inform clinical understanding of clients. The need for critical dialogue in social work supervision regarding dynamics of sameness, differences, intersectional identities, power and privilege is emphasized. Theoretical grounding is offered to elucidate how complex structural forces of oppression and privilege, cultural patterns and narratives are internalized. A definition of CC, its theoretical underpinnings and the CC model are presented with a case scenario to illuminate the application of the CC model in clinical supervision.     

TESTING COMMITMENT COST THEORY IN CHOICE EXPERIMENTS

In choice experiments, it is commonly assumed that individuals make choices in static and certainty decision‐making conditions. Real‐world choices, however, are usually made in a dynamic setting. Committing a purchase decision under conditions of uncertainty might have a “Commitment Cost” (CC). In this study, we test CC theory using a nonhypothetical choice experiment. Specifically, we test whether choice behavior and willingness to pay estimates differ when individuals have the option to gain present or delayed information or reverse the transaction. Our results suggest that the construction of a dynamic decision context can be relevant in the design of choice experiments. (JEL C90, C93, Q18)