县域村镇体系规划编制中的若干问题及对策探讨

阐述对县域村镇体系规划的概念、特性的认识,分析我国县域村镇体系规划编制存在的问题,提出对于提高我国县域体系规划编制科学性的若干探讨,并从兼顾承上启下、探寻有效切入点、更新编制理念、协调各方利益以及注重规划实施等方面进行了初步探讨.     

珠海市会同古村落及历史建筑特征

本文从村落选址、总体格局、空间布局以及街巷体系等方面总结了会同古村落的特色,并对传统民居、祠堂以及碉楼等三种类型村落建筑进行分析,包括建筑平面布局、基本功能以及典型建筑特征等方面。     

建筑工程安全生产管理的特点与措施

随着我国市场经济的迅猛发展,建筑行业已经成为社会经济的重要支柱之一。在建筑行业高速发展的今天,探讨建筑工程施工质量和安全的管理,可以促进建筑工程施工质量与安全管理水平的提高,有利于建筑行业的健康快速发展。     

工程项目联合承包的特点及其运用

最近这些年,随着国内乃至国际市场的竞争越来越激烈,很多企业面临被淘汰的威胁,为了适应企业发展的需要,纷纷采用联合承包的模式,效果非常显著。本文主要介绍了工程项目联合承包的特点及其运用,并且根据自身的体会,对联合承包在实际施工中的运用提出了几点改进建议。     

浅析新型管材在小区供水管网中的应用

本文以新型给水管材 PP-R 管为例论述了管材的种类、特点,分析了在小区供水工程中的施工安装操作要领及注意事项,为新型管材在县城小区给水中的应用提供了一定的技术指导。     

基于气候特征的夏热冬冷地区被动式建筑节能设计策略——以武汉市为例

气候是建筑的本源,也是建筑节能的本源。建筑节能以自然气候特征为基础,在建筑的规划和方案设计阶段,对建筑的能源消耗在源头开始堵截。以我国地域广阔的夏热冬冷地区的武汉市为例,探究该地区被动式(或气候适应性)建筑节能设计策略,为建筑的绿色节能发展提供借鉴。     

磷石膏料浆专用阀设计

介绍了磷石膏料浆的生产过程及其工况特性,给出了磷石膏料浆专用阀的技术参数、工作原理、结构特点和设计方法。     

高紧凑性交叉斜盘式功率传输机构的特性

为提高朗肯循环中膨胀机的密封性能及功率密度,设计了一种交叉斜盘式功率传输机构来消除活塞与气缸之间的侧向力。建立了交叉斜盘机构的数学模型,分析了机构直线驱动活塞原理及高功率密度实现原理。在此基础上,建立缸内热力学模型,分析缸内气压随主轴转角的关系,并进行了数值计算和仿真分析。通过分析交叉斜盘机构传动过程中的摩擦损耗,研究了机构功率传输特性,进行了气动及电机拖动实验,实验结果与仿真结果基本一致。     

豫西潭玉沟银多金属矿地质特征与勘查评价

潭玉沟银多金属矿床为构造蚀变岩型矿床,银矿石类型主要为多金属硫化物—钾长石型银矿石、多金属硫化物—石英脉型银矿石、多金属硫化物—白云石型银矿石等3类;矿石中的主要有用组分为银,以独立银矿物或含银铜矿物形式存在,矿石中有用组分银、铅(锌)分布不均匀且交互变化。在矿床勘查评价中,应加强综合研究,在科学论证的基础上,制定矿床综合工业指标,确定矿石的工业利用前景。     

Alternative work schedule interventions in the Australian construction industry: a comparative case study analysis

Project‐based construction workers in the Australian construction industry work long and irregular hours and experience higher levels of work‐to‐family conflict and burnout than office‐based workers, giving rise to an interest in alternative work schedules as a means of supporting work–life balance. Alternative work schedules were implemented in four case study construction projects in Australia. Interventions differed between projects, with two implementing a compressed work week, and the others introducing reduced hours schedules (one of which was optional). Data were collected from each case study project, using various combinations of focus groups, surveys, interviews and daily diary collection methods. The results were mixed. The compressed work week appears to have been favourably received where it was introduced. However, waged workers still expressed concerns about the impact on their weekly ‘take‐home’ pay. Attempts to reduce work hours by changing from a six‐ to a five‐day schedule (without extending the length of the working day between Monday and Friday) were less favourably received. Waged workers, in particular, did not favour reduced hours schedules. The results confirm the existence of two distinct labour markets operating in the Australian construction industry and markedly different responses to alternative work schedules, based upon whether workers are waged or salaried. The results clearly show that attempts to improve work–life balance must take the structural characteristics of the industry's labour markets into consideration in the design of interventions. The impact of alternative work schedules is likely to be moderated by institutional working time regimes within the construction industry.