Results 131 to 140 of about 45,703 (205)
ABSTRACT The rapid expansion of data‐intensive applications has highlighted the fundamental limitations of traditional CMOS‐based von Neumann architectures, particularly in terms of power efficiency, latency, and flexibility. Spin logic devices utilizing spin–orbit torque (SOT) present a promising pathway for nonvolatile, low‐power, and in‐memory ...
Ke‐Yi Wu +5 more
wiley +1 more source
作为宿主的“第二套基因组”,消化道微生物与宿主的营养吸收和免疫抵御等功能紧密相关。与陆生哺乳动物相比,海洋哺乳动物鲸类的消化道微生物是目前国内外关注较少的研究领域。已有研究表明,鲸类消化道微生物极易受到食物和栖息地环境等因素的影响,然而现阶段研究手段以基于粪便样品进行高通量测序为主。本文对鲸类消化道微生物的研究手段、群落结构、功能特征和调控策略等方面的进展进行总结和分析,并对未来发展方向提出展望和建议。
万晓玲, 郑劲松, 郝玉江, 王丁
doaj
针对阻抗定位法所存在的问题,回顾了高压输电线路行波测距装置的发展历史,介绍了目前国内研究进展。讨论了目前的故障测距装置中的传感器、高速数据采集、GPS同步单元等几个关键部分的研究情况,同时也对它们今后的发展与改进提出了自己的看法。根据现场调研的情况对装置在实际运行中遇到的一些问题进行了总结,并给出了解决办法。同时也对输电线路行波故障定位装置的发展提出了建议与展望。
方力谦, 李晓明, 黄斌
doaj
Distribution of 210Po and 210Pb in the Prydz Bay and its adjacent sea areas and their estimate of particulate organic matter export [PDF]
本研究依托中国第29次南极科学考察航次获得的210Po、210Pb数据,研究了普里兹湾及其邻近海域210Po、210Pb的生物地球化学行为,计算出颗粒有机物的输出通量,揭示了普里兹湾及其邻近海域的颗粒动力学特征。 普里兹湾及其邻近海域D210Po和D210Pb的比活度分别占到T210Po和T210Pb的90%以上,P210Po和P210Pb的份额不足10%。D210Po和D210Pb比活度在陆架区表现为低值,且由陆架向深海逐渐升高,反映了陆架区210Po、210Pb的清除作用强于陆坡及深海区 ...
胡慧娜
core
ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo +6 more
wiley +1 more source
ABSTRACT Water governance has emerged as a critical analytical framework for addressing the complexity of socioecological water systems in contexts of increasing climate vulnerability and anthropogenic pressure. This study presents a systematic review and bibliometric analysis of 50 scientific articles indexed on water governance published between 2018
Roger Pichis‐García +1 more
wiley +1 more source
系列"组学"技术的发展推动了基础研究水平的提高和深入。代谢组学作为一门新兴学科,着重研究的是生物整体、器官或组织的内源性代谢物质的代谢途径及其所受内在或外在因素影响下代谢整体的变化轨迹来反映某种病理生物过程。目前,代谢组学已广泛应用于生物学和医学相关的很多领域,在肝脏、心脏、肿瘤、肾脏等疾病中也有较深入的研究。本文就代谢组学的研究进展进行综述 ...
陆荣华, 杜玉君
doaj
ABSTRACT Transnational collaboration is critical for water‐security innovation, yet actor configurations and thematic priorities remain poorly characterized. We surveyed 92 Australian and Brazilian researchers from the Tropical Water Research Alliance (TWRA), analyzing 11 sets of binary variables on collaboration modes, stakeholders, implementation ...
A. P. Matei +7 more
wiley +1 more source
血管内皮生长因子(vascular endothelial growth factor,VEGF)是Mazur在研究胃肠道间质瘤过程中发现的一种具有血管再生的内皮细胞丝裂原,并于1983年报道[1],于1989首次从牛垂体滤泡星形胶质细胞体外培养液中分离提纯[2],随后对其结构、作用进行研究。最早的研究表明VEGF在肿瘤的发生、发展过程中扮演着重要角色。近年来VEGF的基础研究取得较大进展,其在缺血性心脑血管疾病 ...
韩英博 +3 more
doaj

