浅谈CFG桩复合地基技术

简述了CFG桩复合地基技术，并对CFG桩复合地基的基本原理进行了论述，说明了它是一种具有材料来源方便。环保、工程造价低等优点，并可大为推广的地基处理形式，为施工与设计人员提供了技术参考。     

夏热冬冷地区居住建筑夏季人员开窗行为实测与建模研究

开关窗是建筑使用者控制室内热环 境和改善室内空气品质最直接且简单的手 段,同时对建筑节能也有重要影响,因此对 人员开关窗行为的定量化描述是非常必要 的。本研究通过对夏热冬冷地区—?—自贡市 7户住宅夏季人员开窗行为的实际监测,得到 以下结论：发现实测样本中存在三种明显差 异的典型开窗行为,分别是习惯性开窗型、 高强度开窗型和习惯性关窗型;对非环境因 素分析得出,一天中不同时段以及家庭成员 吸烟与否对开窗概率影响显著,而是否为工 作日以及住户所在楼层对开窗概率无明显影 夏热冬冷地区居住建筑夏季人员开窗行为实测与建模研究 * 刘奕巧　王新如　崔　颖　魏　绅　潘　嵩　LIU Yiqiao, WANG Xinru, CUI Ying, WEI Shen, PAN Song Measurement and Modelling of Occupants’ Window Opening Behavior in Residential Buildings in the Hot Summer and Cold Winter Regions in Summer 中图分类号 TU228 文献标识码 B 文 章 编 号 2095-6304（2021）05-15-09 作者简介 刘奕巧： 吉林建筑大学寒地建筑综合节能教育部重点实 验室,马来亚大学机械工程学院,博士研究生 王新如（ 通讯作者）：天津商业大学机械工程学院,讲 师,xinru5263@ticu.edu.cn 崔　颖：宝武清洁能源武汉有限公司 魏　绅： 伦敦大学学院巴特莱特可持续建筑学院,副教授 潘　嵩： 吉林建筑大学寒地建筑综合节能教育部重点 实验室,北京工业大学绿色建筑环境与节能 技术重点实验室,教授 *寒地建筑综合节能教育部重点实验室开放课题项目; 河北省国际科技合作基地（20594501D）;“十三五”国 家重点研发计划(2017YFC0702200) 响;对于环境因素而言,当室外温度超过32 ℃,开窗概率开始降低,空调开启比例升高;室外温 度超过37 ℃,空调开启比例达到100%,但开窗比例仍有11.1%;建立了基于二元逻辑回归的夏季 高强度开窗行为预测模型,模型的预测准确率达到了86%,而室外温度是该模型最为重要的预 测因子。本文的研究成果可以用于细化能耗模拟软件及室内空气品质评价软件对该类型住宅建 筑开窗行为特征的描述,对住宅建筑节能设计、运行、改造以及住宅室内空气品质和热舒适研 究均有一定程度的参考意义。     

Biological assessments of a mixture of endocrine disruptors at environmentally relevant concentrations in water following UV/H2O2 oxidation

Numerous studies have investigated degradation of individual endocrine disrupting compounds (EDCs) in lab or natural waters. However, natural variations in water matrices and mixtures of EDCs in the environment may confound analysis of the treatment efficiency. Because chemical based analytical methods cannot represent the combined or synergistic activities between water quality parameters and/or the EDC mixtures at environmentally relevant concentrations (microg L(-1)-ng L(-1)), bioanalytical assessments of residual estrogenic activity in treated water were used to evaluate the performance of the UV based advanced oxidation process for estrogenic contaminants in water. Four EDCs including estradiol (E(2)), ethinyl estradiol (EE(2)), bisphenol-A (BPA) and nonylphenol (NP) were spiked individually or as a mixture at mug L(-1)-ng L(-1) in laboratory or natural river water. The removal rates of estrogenic activity were quantitatively evaluated by in vitro yeast estrogen screen (YES) and in vivo Vitellogenin (VTG) assays with Japanese medaka fish (Oryzias latipes). UV in combination with 10 ppm H(2)O(2) as an oxidation process was capable of decreasing in vitro and in vivo estrogenic activity, however, in vivo estrogenic activity of the EDC mixture in natural water was not completely removed at UV fluence up to 2000 mJ cm(-2). The removal rates of in vitro estrogenic activity of the EDC mixtures were lower than those observed for single compounds, and slower in natural waters, likely due to lower steady-state concentrations of hydroxyl radicals (*OH) in the presence of *OH scavengers from the water matrix and EDC mixture.     

Antimicrobial activity of biodegradable polysaccharide and protein-based films containing active agents

Significant interest has emerged in the introduction of food packaging materials manufactured from biodegradable polymers that have the potential to reduce the environmental impacts associated with conventional packaging materials. Current technologies in active packaging enable effective antimicrobial (AM) packaging films to be prepared from biodegradable materials that have been modified and/or blended with different compatible materials and/or plasticisers. A wide range of AM films prepared from modified biodegradable materials have the potential to be used for packaging of various food products. This review examines biodegradable polymers derived from polysaccharides and protein-based materials for their potential use in packaging systems designed for the protection of food products from microbial contamination. A comprehensive table that systematically analyses and categorizes much of the current literature in this area is included in the review.     

探讨图形的平面设计及其作品赏析

图形是平面设计中重要的组成部分,因此,在图形的内容、形状、形式、形态等方面都对平面设计发挥着重要影响。本文认为,要增强平面设计作品欣赏能力,就需要在设计者的配合下不但要多关注大众心理,而且要善于观察消费者,在创意中注重融入更多的情感性。     

水下混凝土施工中导管故障与处理

在水下混凝土施工浇注时,导管经常出现进水、塞管、埋管等问题,通过分析产生这些问题的原因,提出了相应的处理方法和预防措施。     

预测铁水脱硫剂消耗的动力学模型

本文从扩散动力学原理出发,对确定铁水喷射脱硫反应效率的一种方法进行了讨论。文中所推导出的数学模型,是炼钢工作者预测简单或复杂成份脱硫剂的消耗知费用的有用工具。本文还含有预测的情况与工厂操作数据进行比较的曲线图,以及对模型使用条件限度的说明。