我国消防员灭火救援中伤亡情况研究

为分析我国消防员灭火救援中伤亡的原因,减少消防员伤亡事故的发生,统计了消防部队2005年~2013年共发生的70起消防员灭火救援中伤亡情况、伤亡原因,并对比美国消防员灭火救援中伤亡情况。结果表明,造成我国消防员灭火救援中伤亡的原因既有灭火救援危险性高的客观原因,也有消防员灭火救援经验缺乏、消防员防护装备配备不科学、安全保障技术应用不当等主观原因。要减少消防员灭火救援中伤亡事故的发生,应从提高消防员灾害事故现场风险评估能力、科学配备消防装备、提高消防员灭火救援专业能力和安全保障技术应用能力等方面加以改进。     

桑金钱菌的纯化培养及多糖获取

采用组织分离法,从桑树上分离到一菌种,鉴定为担子菌亚门层菌纲伞菌目口蘑科冬菇属真菌类。经培养,该菌种适宜生长温度为22℃,适宜生长培养基为马铃薯培养基。在液体培养基中震荡培养得到大量菌丝,经冷冻干燥、微波提取后得粗多糖,含量为5.36%左右。     

Urban Land-banking Planning： A New Instrument to Regulate Urban Land Supply-demand of Nanjing City

It is the major purpose of the paper to present the urban land-banking planning and its functions of promoting the urban land-banking system and land use administration. The urban land-banking system has the potential attribute of acting as an irreplaceable role in urban land administration, but its unexpected function-deviation has impacted its implementation effect in China. A few city governments are attempting to deal with the problem by the urban land-banking planning which is expected to contribute to the extension of urban function, optimization of urban patterns, promotion of urban core competitiveness and overall construction of the urban value chain. In this paper, we primarily discuss the necessity, functions, purposes and main contents of the urban land-banking planning. Subsequently, the implementing situation of the urban land-banking system in Nanjing is analyzed, including its integrated mode, spatio-temporal quantitative distribution and main characteristics. Finally, the background and targets including total, compositions, space, and regulation points are gradually introduced to present the Nanjing land-banking planning version 2.     

Correlation between Urban Land Change Process and Socioeconomic Development since the 1980s in Jiangsu Province

Studying the process and characteristics of urban land change in different phases of urbanization and different economic development is much important for understanding urban land change and management at a macro level. Taking the example of Jiangsu Province, the present paper studied the correlation between urban land change process and socioeconomic development from 1981 to 2003 on the basis of statistical data. The results showed the following three aspects. First, urban land area has changed periodically and the research duration can be divided into two periods: from 1981 to 1994 and from 1995 to 2003. In each period, the changing trend is the same, i.e. slow at first and then quick. Studying from the comprehensive change status, the characteristic of fluctuant change is significant with three acute change pinnacles in 1988, 1991 and 2002 which were corresponded to turning point years of economic development phases of Jiangsu Province respectively. Second, the synchronization between urban land change and urbanization level change is not strict. With the evolution of urbanization phases, the change pace of urbanization level increased remarkably, but urban land change rate did not increase significantly accordingly. Third, the area of urban land has exponentially increased with the increase of per capita GDP. In different economic development levels classified by per capital GDP, land resource cost for economic development is different, respectively 29.01 hm2, 26.34 hm2, 26.22 hm2, and 11.14 hm2 for the increase of 100 million RMB GDP when the per capita GDP is under 1000, 1000–2000, 2000–5000 and over 5000 RMB.     

水的后置侵入对瓦斯解吸影响试验研究

利用自主设计的外液条件下瓦斯解吸试验装置,首次进行了无水侵入和外来水侵入后含瓦斯煤的瓦斯解吸对比试验.共进行6组,瓦斯吸附平衡压力分别为3.5 MPa、3.0 MPa、2.5 MPa、2.0 MPa、1.5MPa、1.0MPa,环境压力分别为3.0 MPa、2.5 MPa、2.0 MPa、1.5 MPa、1.0MPa、0.5 MPa,含瓦斯煤的内外压力差为0.5 MPa,获得了相关试验数据以及6组瓦斯累积解吸量变化对比曲线.结果表明,在对含瓦斯煤实施水力压裂后,外来水的后置侵入不仅会使瓦斯解吸量大大减少,而且还会使瓦斯解吸的终止时间提前；在压差为0.5 MPa条件下,有水侵入后的瓦斯解吸量仅为无水侵入时瓦斯解吸量的23％～45％,平均降低了67.5％,同时瓦斯解吸终止时间提前约1h.水的后置侵入对瓦斯解吸具有损害作用,该损害作用源于水在孔隙中形成的毛细管阻力.因此,在评价是否采用水力压裂时,应从煤层渗透率、水驱气、水对瓦斯解吸损害影响3个方面综合考虑.     

某人工湿地系统对水中持久性有机污染物去除效果的分析

采用固相萃取样品前处理技术和气相色谱/电子捕获检测器(GC/ECD)及气相色谱/质联联用(GC/MS)分析方法,对某人工湿地系统进、出水中持久性有机污染物(包括多环芳烃、多氯联苯、有机氯农药)的质量浓度进行了分析和对比,以研究该湿地水中持久性有机物的污染水平及湿地对它们的处理效果.结果表明,多环芳烃检出19种,以二环为主,萘及其同系物约占总量的71%;有机氯农药只检出HCH的4种异构体和七氯;多氯联苯检出5种,以二氯代为主.这3类物质的浓度水平明显低于以往的研究结果,且低于国家地表水环境质量标准(GB 3838-2002).对于持久性有机物浓度较低的水源水,湿地对以上3类物质的去除效果不明显.     

乌鲁木齐市城市环境综合整治定量考核初步研究

城市环境综合整治定量考核是中国为保护和改善城市环境质量而实行的一种行政性管理制度。该项制度目前采用20项指标,综合衡量一个城市的环境质量等级,并进行城市间的相互比较。乌鲁木齐市自1989年参加城考以来,成绩一直不理想,特别是环境空气质量得分不理想。本文采用通常方案和减排方案对2008年城考结果进行预测。结果表明,只有采取减排方案,才能改变乌鲁木齐市在全国城考中排名落后的状况。     

重油生物脱硫菌的筛选

本实验由菌种采集开始，经过富集培养、平板分离、选样、摇瓶培养等步骤，筛选出了具有较好脱硫能力的菌株，并通过紫外分光光度计和气相色谱仪初步检测了它们的脱硫能力。     

落实节能减排举措推进企业持续发展

近年来,凌钢积极落实科学发展观,不断推进管理创新、技术创新和体制创新,积极推进清洁生产和能源审计工作,加强源头和过程控制,努力建设资源节约型和环境友好型企业,促进了增长方式转变和经济效益提高.