姜黄素-碳纳米管-离子液体修饰电极对盐酸羟胺电催化氧化性能研究

以N-辛基吡啶六氟磷酸盐离子液体为分散剂,制备羧基碳纳米管-离子液体均匀分散体系,制备碳纳米管修饰电极。并通过电化学沉积,制备得到姜黄素-碳纳米管-离子液体修饰电极。修饰电极的电化学性能研究表明,该电极具有较低的背景电流响应,对盐酸羟胺具有明显的电化学催化氧化作用。阳极电位为0.25 V时,盐酸羟胺在修饰电极上氧化电流显著增大,在5.0～455μmol/L浓度范围内,氧化电流和盐酸羟胺浓度呈线性响应。     

伊犁河谷不同土地利用方式下土壤有机碳含量与土壤理化性质相关性分析

通过对伊犁河谷地区四种典型土地利用类型（耕地,草地,园地和林地）0~60cm土层深度土壤有机碳含量与理化性质（速效氮、磷、钾,蔗糖酶活性,脲酶活性,过氧化氢酶活性）进行测定并分析土壤有机碳与理化性质的剖面分布特征及内在联系。结果表明：有机碳含量、速效氮、磷、钾、蔗糖酶、脲酶和过氧化氢酶的含量都随着土壤深度增加而降低。其中草地的有机碳含量、耕地的速效氮含量、园地的速效钾、速效磷含量、林地的蔗糖酶、脲酶、过氧化氢酶活性都高于其余三种土地利用方式。耕地的有机碳含量与速效氮、速效钾、速效磷和蔗糖酶活性在0.01水平上显著相关,园地的有机碳含量与速效氮、钾,脲酶和过氧化氢酶在0.01水平上显著相关,草地的有机碳含量与速效氮、磷、钾和两种酶活性（蔗糖酶和脲酶）呈极显著相关（P<0.01）,林地的有机碳含量与速效钾,脲酶和过氧化氢酶呈极显著相关（P<0.01）。     

高尔夫俱乐部低碳供应链管理研究

当前,低碳发展已成为世界发展的重要趋势,低碳发展也自然成为高尔夫俱乐部管理的重要方向。本文在低碳经济这个大的背景下,阐述了低碳供应链与高尔夫俱乐部低碳供应链管理的内涵、内容与运作流程,进而提出实施高尔夫俱乐部低碳供应链管理的主要途径。     

功能性纤维在非织造过滤材料中的应用

文章论述了功能性纤维在非织造过滤材料中的应用和作用机理,并详细列举了当前一些功能性纤维制造的非织造过滤材料的性能和应用。     

农业碳排放变化及驱动力研究-以滁州市为例

研究基于碳排放测算模型,从滁州农业生产中4个主要方面的碳源,测算了滁州2000-2009年农业碳排放量,并在此基础上进一步通过Kaya恒等式变形对滁州农业碳排放影响因素进行分解。研究结果表明：自2000年以来滁州农业碳排放总量和碳排放效率总体呈现上升态势,碳排放强度呈现缓慢下降趋势;生产模式因素、生产资料效率因素对碳排放量具有一定的抑制作用,但效果不够显著,分别累计实现15．66％、97．05％的碳减排;而经济规模因素、人口规模因素则对农业碳排放具有较强推动作用,分别累计产生195．86％、16．85％的碳增量。     

海洋浮游藻类细胞外碳酸酐酶活性分析

分析了海洋浮游藻类细胞外碳酸酐酶（细胞外ＣＡ）活性与无机碳浓度以及藻细胞质膜氧化还原活性之间的关系．     

The carbon footprint of active sport tourists: an empirical analysis of skiers and boarders

ABSTRACT

This study estimated the annual carbon footprint of active sport tourists caused by snow-sport-related travel in the context of day trips, vacations, training courses, and competitions in 2015. Information about individual travel behaviour, sport profile, environmental consciousness, and socio-economic characteristics was collected using a nationwide online survey of adult skiers and boarders living in Germany (n?=?523). The average annual carbon footprint of snow sport tourists was 431.6?kg of carbon dioxide equivalent emissions in 2015. Boarders had a higher carbon footprint than skiers. Regression analyses revealed that income and number of snow days had a significant positive effect on annual carbon footprint, while environmental consciousness was insignificant. This finding can be explained with the value–action gap and the low-cost hypothesis, suggesting that environmental attitudes were not associated with pro-environmental behaviour in terms of a lower carbon footprint because snow-sport-related travel was perceived as a high-cost situation by respondents. Segmenting respondents by snow-sport-related travel behaviour yielded two clusters, frequent travellers (56% boarders) and occasional riders (43% skiers), which differed with regard to annual carbon footprint, club membership, number of snow days, and performance level. This study contributes to the literature on active sport tourism and carbon footprinting.     

Shear strengthening of pre-damaged reinforced concrete beams with carbon fiber reinforced polymer sheet strips

This paper presents the results of an experimental investigation on the response of pre-damaged reinforced concrete (RC) beam strengthened in shear using applied-epoxy unidirectional carbon fiber reinforced polymer (CFRP) sheet. The reasearch included four test rectangular simply supported RC beams in shear capacity. One is the control beam, two RC beams are damaged to a predetermined degree from ultimate shear capacity of the control beam, and the last beam is left without pre-damaged and then strengthened with using externally bonded carbon fiber reinforced polymer to upgrade their shear capacity. We focused on the damage degree to beams during strengthening, therefore, only the beams with side- bonded CFRPs strips and horizontal anchored strips were used. The results show the feasibility of using CFRPs to restore or increase the load-carrying capacity in the shear of damaged RC beams. The failure mode of all the CFRP-strengthened beams is debonding of CFRP vertical strips. Two prediction available models in ACI-440 and fib European code were compared with the experimental results.     

对炭还原氧化铜实验的探讨

本文对炭还原氧化铜实验用正交实验法研究了最佳实验条件，并对此实验进行了一些探讨和改进，找出了提高实验成功率的有效途径。     

低碳休闲:休闲体育发展之路

对低碳休闲体育发展的意义、现状及路径进行考察。认为低碳休闲是休闲体育发展的社会要求、自身要求及个体要求;现阶段低碳体育休闲开始受到重视,设备逐步投入,低碳休闲体育观念被大众接受。通过加强休闲教育,加大经费投入,挖掘区域体育文化特色等路径来实现低碳体育休闲。