Results 61 to 70 of about 4,754 (162)
Research Review of CO2 Capture, Utilization and Storage Technology in Zhejiang Province [PDF]
[Introduction] The green and low-carbon transformation and industrial restructuring under the premise of energy security is a serious challenge faced by Zhejiang Province to achieve its "carbon peaking and carbon neutrality" goals.
Chenglong HOU +6 more
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ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
wiley +1 more source
基于农地利用、水稻种植、畜禽养殖、秸秆焚烧4大方面25类主要碳源和17类主要农作物碳汇,测算了山东省2000-2015年及全省17个地级市2000年、2007年、2015年的农业碳排放量和碳汇量,在此基础上计算出农业净碳汇量和净碳汇强度,并对其时空演化特征进行分析。结果表明,2000-2015年间山东省农业净碳汇总量和净碳汇强度均呈上升趋势,分别增长33.05%和39.14%,农业发展的碳效应以碳汇为主,减排增汇效果明显;农业净碳汇量区域差异明显且随时间的变化呈扩大趋势,存在净碳汇量持续增长型 ...
吕斯涵, 张小平
doaj
Carbon emission forecasting in Zhejiang Province based on LASSO algorithm and grey model [PDF]
Under the green and low-carbon development goal of achieving "carbon peaking and carbon neutrality" in China, cyclical analysis and accurate prediction of carbon emissions are of great importance.
DU Wei +3 more
core +1 more source
ABSTRACT The transformative potential of gallium nitride high electron mobility transistors (GaN HEMTs) in advancing carbon‐neutral power systems remains bottlenecked by contact resistance (Rc) at the metal–semiconductor (M‐S) interface, a critical determinant of switching losses and frequency response.
Ji‐Zhou Zhang +8 more
wiley +1 more source
碳纤维拉索具有轻质和超高抗拉强度的优点,适用于建筑结构的受拉构件中,其应用的推广有助于推进建筑行业节能减排的进行。国内目前尚未出台关于碳纤维索结构设计方面的规范和标准,高强度、大吨位的碳纤维索在我国房屋建筑中尚无应用先例。为了推进碳纤维索的研究和应用,在美的全球创新园区项目中,局部应用了强度等级为2 800 MPa的高强度碳纤维平行筋索,其中规格为7×139拉索的破断荷载达14 991 kN。文章介绍了在项目中碳纤维索的力学性能和承载力的确定过程及碳纤维索结构的抗震计算和防连续倒塌计算 ...
李明菲, 邢佳宇
doaj +2 more sources
Engineering 2D Materials for High‐Current‐Density Electrocatalytic Water Splitting
ABSTRACT Water electrolysis is a key method for sustainable hydrogen production, using water as an abundant resource. However, efficient and stable operation at high current densities remains challenging due to energy losses, catalyst degradation, and limited ion–electron transport.
Tianqi Guan +8 more
wiley +1 more source
以陕西省为例,运用1989-2008年全省耕地、林地、草地、建设用地的面积数据和全省煤炭、石油、天然气消耗数据以及2006年11个地级市耕地、林地、草地和建设用地面积数据,采用回归分析、IDW插值和Hopfield神经网络对其进行模拟,分析不同土地利用方式的碳排放效益,得出以下主要结论:(1)1989-2008年,全省的碳排放总量大体呈增加的趋势,年均增加178.869万t.(2)建设用地和耕地是主要碳源,林地和草地是主要碳汇.(3)2006年的断面数据表明,陕西省碳排放总量存在明显的区域差异 ...
苏雅丽, 张艳芳
doaj
ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du +9 more
wiley +1 more source
以两种常见的有机废弃物牛粪和稻秆为原料,利用Eisenia foetida生产蚓粪,采用室内培养试验,研究了蚓粪在重金属污染的酸性土壤中对有机碳含量和形态、土壤酸度及Cu、Pb形态的影响。结果表明:在2.5%~10%的蚓粪用量下,土壤总有机碳含量增加了25%~83%,除牛粪蚓粪组的可溶性有机碳显著高于稻秆蚓粪外(P<0.05),其余形态两种蚓粪间土壤有机碳含量无显著差异。蚓粪使土壤pH(H2O)值提升0.38~1.13个单位,同时交换性氢和铝的含量分别降低41%~77%和57%~94 ...
周 +7 more
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