Results 31 to 40 of about 2,020,061 (284)

Emerging applications of large language models in ecology and conservation science

open access: yesConservation Biology, EarlyView.
Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides   +5 more
wiley   +1 more source

“一锅法”合成叔胺 [PDF]

open access: yes, 2006
以氨基酸甲酯的盐酸盐为原料,用“一锅法”高产率地合成了一系列N-取代叔胺,其结构经1H ...
袁小红, 徐春霞, 张国林
core  

Institutional lessons from the Nordic management model

open access: yesConservation Biology, EarlyView.
Abstract To improve wildlife management outcomes, in terms of reaching management goals and increasing legitimacy, Nordic countries have developed institutional systems involving stakeholders that aim for a more inclusive and participatory model.
Jens Nilsson   +2 more
wiley   +1 more source

超声融合成像在联合手术或操作的肝肿瘤消融术中疗效评估的应用

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2017
【目的】比较超声(US)与计算机断层扫描(CT)或磁共振(MR)的融合成像(US-CT/MR融合成像)以及超声与三 维超声融合(US-US融合成像)在联合其他手术或操作的肝肿瘤消融术中疗效评估应用的价值。【方法】本研究纳入2015年 8月至2015年12月期间联合其他手术或操作(包括开腹手术、腹腔镜手术、人工胸腹水等)的肝肿瘤消融治疗患者,分别对 同一患者采用US-CT/MR融合成像和US-US融合成像结合超声造影进行术中即时消融疗效评估,比较两种融合成像技术适 用率、融合配准成功率及操作时间 ...
龙颖琳   +5 more
doaj  

用丙烯合成新选矿起泡 - 混合六碳醇 MPA

open access: yes, 1983
用丙烯合成新选矿起泡 - 混合六碳醇 ...
待填写
core  

Effects of restoration practices on biodiversity in temperate and boreal forests

open access: yesConservation Biology, EarlyView.
Abstract Several restoration practices are used to mitigate and compensate for the negative effects of large‐scale forestry on biodiversity in temperate and boreal forests. A comprehensive synthesis of the benefits of these practices across taxa is missing. We conducted a systematic review and meta‐analysis on this topic.
Malin Tälle   +2 more
wiley   +1 more source

强噪声下光纤激光相干合成突破千路

open access: yesChinese Journal of Lasers, 2023
Qi Chang   +7 more
semanticscholar   +1 more source

多取代氢化萘化合物、其合成方法及用途

open access: yes, 2011
本发明属于有机化学领域,涉及多取代氢化萘化合物、其合成方法及用途,具体涉及手性的多取代十氢或/和八氢萘化合物及其合成方法和用途。本发明的目的是:提供手性的多取代十氢或/和八氢萘化合物,并采用齐墩果烷型或乌苏烷型五环三萜类化合物作为原料制备该化合物,本发明的多取代十氢或/和八氢萘化合物用于合成含有多氢萘结构片段的药物或者香料以及它们的类似物。本发明方法简单易行,成本低,产率高 ...
张国林, 杨海君
core  

Extreme site fidelity in long‐distance migratory shorebirds in Australia and potential implications for conservation

open access: yesConservation Biology, EarlyView.
Abstract Site fidelity is the tendency for animals to repeatedly return to the same locations, either within or between years. Site fidelity enables animals to utilize knowledge of previously visited locations, including assessments of seasonal variations in health and mortality risks (e.g., predation), resource availability, and social benefits such ...
Tobias A. Ross   +13 more
wiley   +1 more source

熔态还原炼铁-汽油合成-发电系统集成与模拟

open access: yes, 1999
吨铁净能耗的29.5%用于烧结和焦化工序,在提高原料的理化性能之后,部分能耗未得到充分回收和利用,是高炉炼铁系统能耗高的一个重要原因,该系统的颗粒物和SO_2的排放量分别占钢铁工业总排放量的68.2%和 73.7%。熔态还原-汽油合成-发电系统,可以解决熔态还原的尾气利用问题,联合循环发电和煤基汽油合成的造气投资成本及运行费用高的问题。本系统的污染物排放量远低于现有工艺。生产相同数量的产品时,二段法熔态还原-煤气联合循环发电、二段法熔态还原-煤气蒸汽发电、一段法熔态还原-煤气联合循环发电 ...
张夏
core  

Home - About - Disclaimer - Privacy