Results 31 to 40 of about 14,981 (164)
Experimental Measurement of Interdiffusivities and Calculation of Diffusion Kinetics in Some bcc Ti-based Alloys Systems [PDF]
, 2016 钛合金具有比强度高、耐蚀性好、耐热性好及良好的生物相容性等特点，在航空、航天、冶金、汽车及医用等领域得到了广泛的应用。由于钛合金的许多热处理工艺和相变均与合金元素的扩散行为密切相关，因此，有必要对材料的扩散动力学进行实验分析和理论计算。然而，目前由于缺乏相关的扩散实验数据，钛基合金动力学数据库还很不完善。因此，本研究通过扩散偶法，实验测定了部分钛基二元系中bcc相的互扩散系数，并基于文献报道的扩散实验信息和本研究得到的实验数据，利用DICTRA软件进行动力学参数的优化与计算。同时，基于文献报道的实验信息，
罗奕胜
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Adsorption kinetics of sodium dodecyl sulfonate onto hematite [PDF]
, 2016 The adsorption kinetics and conformation change of sodium dodecyl sulfonate(SDS) onto Fe2O3-coated crystal sensors were studied by quartz crystal microbalances with dissipation(QCM-D).
KOU Jue +3 more
core +1 more source
A more‐than‐human political ecology of Indonesian songbird trade
Conservation Biology, EarlyView.Abstract Since its inception, conservation science has considered wildlife trade a problem. In focusing on conservation outcomes, conservationists almost completely ignore the welfare of traded animals and plants and the harms they endure. We developed a political ecology approach that incorporates the interconnectedness of people with animals and ...
Sicily Fiennes +9 more
wiley +1 more source
Micro/Nanoelectrodes technique and Its Applications in Surface diffusion [PDF]
, 2015 “无表面扩散，则无异相催化。”——盖博·索马杰。表面扩散作为固体表面科学中的基础研究之一，在能源材料、化学工业和环境保护等许多重要领域中扮演着十分重要的角色。 虽然目前已广泛建立了多达几十种能够在超高真空或者气相环境中系统研究表面扩散的实验方法。然而在电化学体系中，对于电极表面吸附物种表面扩散行为的研究无论在实验上还是理论上都是极具挑战的。微纳电极技术为电化学领域的研究带来了更高的空间及时间分辨率，从而许多在常规尺寸电极上无法直接观测的现象却在微纳电极上显得尤为突出，例如吸附物种的表面扩散 ...
王玮
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Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, EarlyView.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
Gaoya dianqi, 2003 介绍了虚拟样机实验仿真技术的技术路线,运用机械系统动力学自动分析软件ADAMS建立了某真空断路器操动机构的动力学仿真参数化模型,仿真分析了机构的运动学和动力学特性,并与试验结果进行了对比。结果表明,所开发的参数化仿真模型为真空断路器操动机构的开发设计和性能分析提供了一种高效的现代设计方法。
王恪典, 徐海波
doaj
Study on the Preparation and Biomedical Properties of Multi-Scale Polymeric Nanomaterials [PDF]
, 2015 生物高分子材料的发展关系到现代医学的进步，与人的身体健康和生命质量息息相关。随着高分子制备技术的重大突破，纳米尺度的高分子材料以其独特的生物医学性能，逐渐成为生物材料领域的研究热点。本论文采用多种高分子纳米材料的制备技术，包括链内交联法、自组装法、无皂乳液聚合法和表面接枝法，设计合成了多种尺度的高分子纳米材料（从超细纳米粒子到二维纳米层），并系统地评价了它们的生物医学性能。研究工作在高分子纳米材料的设计与合成、拓展其在生物医学领域的应用等方面具有积极的意义。主要研究内容如下： 1.
宋存峰
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Emerging applications of large language models in ecology and conservation science
Conservation 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
Multi-wavelength Emissions for Sgr A* and Low-Luminosity Active Galactic Nuclei [PDF]
, 2015 黑洞吸积一直是高能天体物理的一个重要过程。本文主要讨论了Sagittarius~A$^\star$(\sgra)的宁静态和耀发态，以及低光度活动星系核系统的多波段辐射，寄希望于对\sgra\的吸积和抛射过程，以及低光度活动星系核的中心引擎有一个统一深入的理解。本文可以主要分为以下四个部分： 在第二章，我们利用现有的法拉第旋转量（RM）观测讨论了\sgra\的喷流模型。在过去二十多年里，已经有多个理论模型被用来解释\sgra\的宁静态辐射。辐射低效吸积流和喷流模型是其中的两个竞争模型。利用对\sgra ...
李亚平
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT Generative artificial intelligence (GenAI) has emerged as a powerful tool in the Informal Digital Learning of English (IDLE) environment, offering personalized, interactive, and innovative language learning experiences that may enhance learning engagement.
Jin Liu, Meilu Liu, Yuan Yao, Dechao Li
wiley +1 more source