Results 21 to 30 of about 13,997 (106)
ABSTRACT Aiming at the problems of insufficient forming quality and poor surface performance in the preparation of Ti‐6Al‐4V alloy by laser powder bed fusion (LPBF), this study proposed a laser in situ forging additive manufacturing (LIF‐AM) technology, which integrates LPBF with femtosecond laser in situ shock forging and realizes defect control and ...
Peng He +10 more
wiley +1 more source
轻钢建筑以其生产过程清洁、材料可回收等优势成为建筑产业节能减排的重要切入点,但该看法仅是对单一阶段减排效应的定性认知,关于其全生命周期的节碳成效及节碳成本尚无定量论证。采用LCA-LCC方法,利用eFootprint工具对轻钢住宅及钢筋混凝土住宅的碳足迹进行精确测算,评估轻钢建筑的节碳成效,并在此基础上依据技术经济原理对比二者的成本及减排效果。结果显示轻钢住宅相比传统钢筋混凝土住宅可实现全生命周期23%的碳减排,材料可回收利用的特性对碳减排率贡献最大;实现1kg二氧化碳当量的减排仅需多支出0.35元 ...
郑晓云, 张爱阳, 席冰冰
doaj
ABSTRACT Many metallic components are frequently subjected to coupled environments of friction and vibration, stemming from interfacial contact and relative motion between mating parts or external stimuli. Consequently, it is imperative for these components to exhibit a synergy of high wear resistance and superior damping properties.
Ze Pu +12 more
wiley +1 more source
ABSTRACT Bengaluru, a primary metropolitan centre in India, is currently grappling with the dual crises of urban flooding and severe groundwater depletion. These challenges are driven by rapid urbanization, which has seen built‐up areas increase from 42% to 86% over two decades, resulting in a dramatic loss of vegetation and wetlands.
S. Biswas, S. V. B. Patel, B. Maheshwari
wiley +1 more source
污水处理厂作为典型的高耗能市政基础设施,在污水处理过程中不仅消耗大量电力,还会产生甲烷(CH4)、氧化亚氮(N2O)等温室气体排放,是我国重点碳排放场景之一,建设零碳污水处理厂是推动实现“双碳”目标的重要实践。基于国际公认的温室气体核算标准,并结合灰色预测模型,为污水处理厂构建了碳排放的核算与预测体系。同时围绕零碳污水处理厂建设的核心目标,研究提出了绿色电力替代、工艺优化、节能改造、能碳管理、碳抵消五条减碳路径。以C镇污水处理厂为例,依据其能源、污水处理、废弃物等方面相关活动数据 ...
李刚, 卓超凡, 骆跃军, 宋文超
doaj +4 more sources
ABSTRACT Introduction Following rapid iterations in media technologies, Chinese millennials (born between 1980 and 1995) find themselves in a paradoxical state where digital saturation exists alongside fatigue, making them central practitioners of digital minimalist behavior.
Chao Zhang, Yinze Hao, Jingwen Li
wiley +1 more source
ABSTRACT Rapid urbanisation and persistent socio‐economic inequality continue to entrench multidimensional poverty within South Africa's urban informal settlements, with women and female‐headed households experiencing disproportionate deprivation. This study analysed primary household survey data collected in 2023 from 322 households across three ...
Adrino Mazenda +3 more
wiley +1 more source
锅炉连排疏水水质比生水优良,并且带有一定热能,直接外排,会造出水资源与能源浪费。通过对热电厂连排系统的技术改造,将连排疏水及其热能全部回收利用,对热电厂节能减排起到良好的作用,同时大量减轻员工的工作强度。对此改造技术可以进一步推广,有效解决热电厂能源浪费问题。
杨海燕 +4 more
doaj +2 more sources
ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang +5 more
wiley +1 more source
Defining and identifying relevant stakeholders to advance effective conservation
The challenge of defining stakeholders in environmental science and an approach for refining existing definitions. Abstract Stakeholder is a contested term that has spawned a multitude of ad hoc definitions. The ambiguity of these definitions has oftentimes impeded transdisciplinary research in environmental governance and conservation science because ...
Milan Büscher +5 more
wiley +1 more source

