Results 11 to 20 of about 9,752 (235)
The Photogrammetric Record, Volume 37, Issue 179, Page 285-305, September 2022., 2022 This paper aims to study and quantify the induced error due to the deflection of verticals (DOV) when integrating different sensors, focusing on GNSS and INS for 3D mapping in airborne mapping. It is shown that the DOV effect should be considered for direct georeferencing because the DOV components are in the order of (or larger than) INS uncertainty ...
Mohammad Bagherbandi +3 more
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Human Brain Mapping, Volume 41, Issue 13, Page 3720-3736, September 2020., 2020 The current study tested how self‐language production and other‐language comprehension interact within a language switching context. We found that other language behaviors affect our own language production via a series of attentional control areas, namely, the left dorsolateral prefrontal cortex, anterior cingulate cortex, and left precuneus, but ...
Huanhuan Liu +4 more
wiley +1 more source
, 2020 无毒环保且稳定的非铅双钙钛矿材料因具有和铅基钙钛矿相似的三维结构, 被认为是铅基钙钛矿材料最有前景的替代品之一. 本文采用溶液法制备了一种新型非铅双钙钛矿材料Cs2TeCl6, 利用金刚石对顶砧高压装置和高压原位同步辐射X射线衍射、紫外-可见吸收光谱技术, 对其在高压下的晶体结构、光学带隙和电子结构演化进行了深入研究.
姚盼盼 +3 more
semanticscholar +1 more source
Em Tese, 2021 Apresento e analiso duas traduções decassilábicas de trechos da obra de Hesíodo feitas no século XIX, a saber: trechos da Theogonia, por José Bonifácio (1825), e trechos de As Obras e os Dias, por João Félix Pereira (1876); faço apontamentos sobre as escolhas dos tradutores, tendo em vista suas próprias considerações, em seus prefácios, a respeito de ...
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Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
自然科学研究钛酸铋钠（简称BNT）陶瓷作为无铅陶瓷的一种，具有优良的电致应变、剩余极化以及高的居里温度等性能，可以应用在储能、制动器、电容器和脉冲等领域。采用在钛酸铋钠陶瓷中掺入Sr元素，并于1170℃下高温固相烧结，制备陶瓷样品。利用XRD、SEM、介电测试仪、铁电分析仪等仪器，测试分析（Bi0.5Na0.5-xSrx）TiO3陶瓷的晶体结构、微观形貌、介电性能以及储能密度。材料在x=0.02时晶粒尺寸最为均匀；XRD表明了材料具有典型的钙钛矿结构、无第二相生成；在1kV、1Hz的条件下，x=0 ...
骏 李 +5 more
semanticscholar +1 more source
地矿测绘黄石- 广济铅锌成矿带是鄂东南矿集区核心铅锌成矿带,章山铅锌多金属矿床地处矿带中部 ,前人对其矿床成因争议较大,长期制约勘查突破。本文以该矿床为研究对象,系统开 展硫、铅、碳、氧同位素测试分析,示踪成矿物质来源与成矿机制。测试结果显示, 闪锌矿206Pb/204Pb为18.1481~18.4877,δ34S值集中于10‰左右,碳氧同位素值介于海 相碳酸盐岩范围。研究表明,成矿物质以赋矿地层供给为主,成矿过程受热化学还原 作用主导,矿床成因与MVT铅锌矿床高度吻合。该成果明确矿床成因类型,为鄂东南地 ...
凯伟 杜 +3 more
semanticscholar +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Developing multifunctional luminescent materials with tunable spectra is crucial for plant lighting and information–security applications. To address the critical requirement of plant photosynthesis for blue and red spectral components, a novel lead‐free double perovskite Cs2NaGdCl6: Sb3+, Pr3+ phosphor was designed and synthesized via a ...
Huangyao Chen +7 more
wiley +1 more source
生态环境与保护, 2019 研究环境样品地表水中铜、铅、锌、镉用电感耦合等离子体质谱法测定。选择不同的实验条件,确定了最佳的分析方法,并通过标准样品和实验样品的分析,验证了方法的准确度和精密度。通过与原子吸收分光光度法进行比对分析,证明此方法快速方便、准确度高、检出限低、精密度好。
戴 长常
semanticscholar +1 more source