Planning for Health: Complexity of Environmental Health and Planning Responses

China's rapid urbanization has led to increasing environmental health problems, which poses great challenges to urban sustainable development. In order to explore the scientific issue of planning for health, this paper firstly analyzes the challenges of spatial planning caused by environmental complexity in terms of health risk, environmental impact, and residents' behavior. And then it puts forward an analytic framework that includes three basic modules, i.e., theoretical model, regional health risk identification, and planning performance assessment, thereby finally proposing six spatial planning strategies according to the objectives of health protection, health promotion, and health equity, on the basis of the actual situation of health risk exposure, environmental friendliness, and the aging level in different cities of China.     

某核电厂内部结构支承反应堆冷却剂系统的结构刚度计算

使用有限元软件ANSYS建立某核电厂反应堆厂房内部结构三维模型,并根据工艺条件图所示的设备、管道支承位置施加单位荷载以计算相应柔度矩阵,为主设备、管道在反应堆冷却剂失水事故(LOCA)和地震工况下的计算提供基本参数。     

内蒙古某银锌矿选矿试验研究（增刊）

内蒙古某银锌矿为含低品位铅锌的硫化银矿石,其中银品位为151.1g/t, 铅、锌品位分别为0.27%和0.56%,硫含量为1.30%,鉴于矿石中铅品位比较低,难以单独富集为铅精矿,采用原矿优先选银（铅）-选银（铅）尾矿锌硫混选-锌硫分离工艺进行试验,最终可以获得银品位为9848.81g/t、铅品位为17.41%,银、铅回收率分别为85.40%和88.46%的银精矿,其中锌含量为4.00%、硫含量为34.77%;可以获得锌品位50.95%,锌回收率为66.71%的锌精矿,其中银、铅和硫的含量分别为801.41g/t、0.44%和33.25%。试验指标比较理想。     

A New Strategy for Preparation of NiAl Bronze/Zn Composite by Friction Stir Processing

In this work, we successfully prepared a NAB/Zn composite using Zn wires by friction stir processing (FSP). During FSP, Zn-containing α matrix and (Fe, Ni)Al phases and nano α and CuZn grains with the size of less than 10 nm are formed on the top surface. The average microhardness of the composite is increased by 15 pct compared with the alloy without Zn, which originates from fine grains, CuZn particles strengthening, and more β′ phase.

     

大厚度临氢Cr-Mo钢在辊式淬火线生产工艺的开发与应用

根据舞钢300 mm厚板辊式淬火线工艺特点,结合以往采用淬火槽生产大厚度临氢Cr-Mo钢的经验及其性能要求,对钢板成分设计和正火加速冷却过程关键工艺参数进行研究,确定了大厚度临氢Cr-Mo钢板在舞钢300 mm厚板淬火线合适的正火加速冷却工艺,成功实现了大厚度临氢Cr-Mo钢板的批量生产.检验结果表明:由300 mm厚板辊式淬火线生产的大厚度临氢Cr-Mo钢板,力学性能稳定,完全满足严格的使用要求,同时板型控制效果良好,在国内临氢压力容器制造领域得到广泛应用.     

运用精益管理DMAIC模型分析供销差产生的原因及措施

城镇燃气供销差反映燃气企业管理水平的综合性指标之一。将精益管理DMAIC模型应用到供销差管理管理中,分析了产生管道燃气供销差的原因,提出了降低供销差的措施。     

有限方向检测法在高程点线矛盾检查中的应用

地形图生产中,对于人工采集的等高线和高程点,需要检查两者之间是否存在矛盾。在介绍常规高程点线矛盾检查方法的基础上,提出了一种有限方向检测法检查高程点线矛盾检查的手段,阐述了有限方向检测法的基本原理,给出提高方法运行速度和节约方法占有内存的措施。并编写了相应的程序,通过实际生产验证表明:该方法检查结果正确,检查速度快,适应性强,很少发现漏判,没有发现误判。     

谈新机场建设对周边地区规划的影响

以大连新机场为例,从机场规划角度入手,介绍了场址确定后,利用净空障碍物面和噪声标准初步限定周边地区的规划高度和地块规划性质,并建议城市规划者协调统一两者的关系,为机场和周边地区和谐发展做出正确引导。     

风景园林专业实践型人才培养模式的探索

通过对开设风景园林专业院校的办学现状分析,探索了风景园林专业实践型人才培养模式,从课程设置、毕业设计等方面进行阐述,提出了风景园林专业实践型人才培养要从根本上做到发挥地域优势、突出自身教育特色的教育观点。     

A framework of critical resource chain for project schedule analysis

Analysing a schedule is beneficial to help stakeholders understand the scheduled project. Project schedules, which create time plans based on the critical path method (CPM) or on resource‐constrained project scheduling problem (RCPSP) optimization, are targets herein. The Theory of Constraints (TOC) treats a schedule as a system. Schedule elements are suspected constraints and a goal depends on the schedule creation policy. Resource information is further surveyed herein to identify true constraints. A framework is proposed to integrate identified constraints on a schedule, and the critical resource chain concept is introduced. Three scenarios illustrate the proposed framework under different scheduling considerations. Results explain schedule constraints, and several schedule analysis issues are discussed.