电力部门有望在脱碳过程中发挥关键作用,并且能源,运输和工业部门的逐步电气结合了发电混合物的深度脱碳。Achieving an (almost) full decarbonization of the power sector requires a complete elimination of unabated fossil fuel use and a large deployment of low-carbon energy sources, variable renewable technologies, such as wind and solar photovoltaic, alongside with dispatchable sources such as hydroelectric power, nuclear and fossil-fuel technologies with carbon capture, utilization and sequestration (CCUS).开发互连,创新的存储技术,需求侧措施以及能源载体的使用,这种氢也可能在未来的电力系统中起主要作用。电力部门有望朝着更大,更复杂,更集成的系统发展,并与宽阔的能源部门相连。
Hydrops is most important prognostic factor – in the context of complete heart block and in the absence of an option to deliver and pace the heart rate it is almost always fatal and consideration to a palliative care pathway should be given Presence of structural heart disease next most important prognostic factor – greater than 80% mortality in presence of atrioventricular block Ectopic related bradycardia usually has a good prognosis, and can be患有低风险心动过速的人受到期待。在存在抗RO/抗LA抗体的情况下,先天性心脏块通常表现在18至28周之间。抗体有时会引起心内膜纤维弹性或更严重的瓣膜疾病或扩张的心肌病。二级心脏阻滞或完全心脏阻滞导致胎儿心动过缓。进展到完整的块可以很快发生,
ABSTRACT: Gallium phosphide (GaP) is a III − V semiconductor with remarkable optoelectronic properties, and it has almost the same lattice constant as silicon (Si). However, to date, the monolithic and large-scale integration of GaP devices with silicon remains challenging. In this study, we present a nanoheteroepitaxy approach using gas-source molecular-beam epitaxy for selective growth of GaP islands on Si nanotips, which were fabricated using complementary metal − oxide semiconductor (CMOS) technology on a 200 mm n-type Si(001) wafer. Our results show that GaP islands with sizes on the order of hundreds of nanometers can be successfully grown on CMOS-compatible wafers. These islands exhibit a zinc-blende phase and possess optoelectronic properties similar to those of a high-quality epitaxial GaP layer. This result marks a notable advancement in the seamless integration of GaP- based devices with high scalability into Si nanotechnology and integrated optoelectronics. ■ INTRODUCTION
在托斯卡纳,恩尔绿色权力意大利人管理着世界上最古老,最具创新性的地热综合体,该建筑具有34种植物,共有37个生产组,位于比萨,锡耶纳和格罗塞托省之间。Geothermal energy, with its 916 MW of installed capacity and an annual production of almost 6 billion KWh, in addition to satisfying 34% of the regional electricity needs and representing more than 70% of Tuscan production from renewable sources, provides useful heat to heat about 13 thousand users, 26 hectares of greenhouses, farms and artisan businesses, also feeding an important sustainable tourism chain with 60 thousand annual visits to museum地热地区的中心,植物和自然事件。数字可以巩固当地的影响和从托斯卡纳温暖心脏的企业家结构的可持续发展的开放范围。
COVID-19 在许多方面颠覆了世界;它对全球教育的影响是巨大的。尤其具有颠覆性的是从面对面教学到虚拟教学的转变。教育工作者和学生不必共同创建和维护促进面对面对话的学习空间,而是必须迅速掌握一种截然不同的教学方式。更复杂的是,人们认为虚拟课程将在很大程度上同步进行,而不是过渡到 COVID-19 之前在线学习的典型异步形式。这种背景强调了设计和实施教学和学习体验的重要性,这些体验通过主动学习来促进学生的参与 (Sharoff, 2019)。然而,由于在疫情初期突然转向在线教学,准备时间有限,许多教育工作者争先恐后地创建以前设计的面对面课程的在线版本 (Almost, 2020; Carolan, 2020; Williams, 2020)。鉴于 Sharoff (2019) 的说法,在线教学最重要的方面之一是经过深思熟虑并清晰表达的设计,这一点具有挑战性。
Self-induced transparency (SIT) in two-level atomic sys- tems is one of the most well-known coherent pulse prop- agation phenomena: Above a certain intensity threshold, the absorption of a pulse by resonant transitions decreases strongly and the medium becomes almost completely trans- parent, which is accompanied by a considerable reduction in the group velocity (for reviews, see Refs.[1 - 4])。这是McCall和Hahn [5,6]的首次报道,他们通过使用半经典描述,证明了两级培养基通过强吸收与2π脉冲透明。现在,这种半经典模型是研究原子相干性的效果[7-9]的量子optics教科书中的标准。已经提出了SIT孤子作为脉冲挤压状态产生的候选[10],量子非过度测量结果[11],以及量子信息存储和检索[12]。此外,随着微观结构纤维技术的最新进展[13],也考虑了通过气体填充的单模单型晶体纤维在sit solitons中产生的生成[14],这简化了ES横向效应。在所有这些进步中,量子噪声和量子相关性起着不可捕获的主要作用
The textile and clothing industry is a significant global sector due to its economic and social contributions. However, it is one of the most polluting industries. There has been a significant uptake of research on circular economy implementation to reduce its environmental impacts. Nevertheless, there is a critical gap in reviewing how the research field is evolving and what the core focus and underlying assumptions of the existing research are. This paper utilises bibliometrics, content analysis, and problematisation to comprehensively examine the state of research. Analysing 132 primary documents dating from January 2014 to April 2023, this study reveals that sustainability-oriented innovation and transition challenges are the core focus of existing research. Technology-oriented circularity and its positive impact on sustainability is the in-house assumption that almost all studies are founded on. Besides unpacking the risk of such assumptions, this study provides tangible sug gestions for future research on circular economy disruption, its rebound effect, and sustainability-oriented innovation. Although the time lag and language biases may have impacted the representation of current research trends, findings from this study can facilitate academic research and industry practice in implementing circular economy practices for a more sustainable future.
讲座-3 模糊逻辑当我们说模糊逻辑时,那就是我们在物理设备中遇到的变量,模糊数字用于描述这些变量,并且在设计控制器时使用此方法,它就是模糊逻辑控制器。 - 让我们采取三个陈述:零,几乎零,接近零。 - 零恰好是零,真值为 1 - 如果它几乎为 0,那么我可以认为在负 1 到 1 之间,0 附近的值是 0,因为这几乎为 0。
简介:旗舰事后评论对科学的评论有风险。批评有时会提出强烈的反应反应。人们如此努力工作,领导者不喜欢看到自己的策略在抨击中。批评家通常不能轻松解决他们提出的问题,即使问题是正确的,这些问题在很大程度上仍未得到解答。当赌注高且大量资金等待交付时,火车(或船舶)一旦发射,就不应该脱轨(也不是沉没)。它必须按计划继续保持最初的推力。在管理功效方面,该项目的领导层不回答批评的典型原因是“让猴子保持批评家的肩膀”(Oncken and Wass,1974; Cover,1999)。积极主动可能是摆脱猴子并打开建筑对话的更好方法。问题就变成了:为了一门更好的科学,可以做什么?这通常是我在神经性论文谈判结束时被问到的问题,或者在对全球神经科学计划的详细评论后收到的评论(Frégnac和Laurent,2014年;Frégnac,2017年,2017年,2021年)。My motivation to write about flagships and global neuro- science comes from my long involvement in interdisciplinary consortia, first as the biology coordinator for almost 15 years in successive European Future and Emerging Technology (FET) projects (Life-Like Perception, Bio-I3, Open-FET: Sensemaker, FACETS, Brain-I-Nets, BrainScaleS), then as an active participant in the ramp-up phase of the