Results 11 to 20 of about 836,196 (139)
Guangtongxin yanjiu, 2015 介绍了可见光组网技术的优势并对其在航天器内应用的可行性进行了分析,提出了系统组网的实现方案并进行了功率余量计算,结果表明,可见光组网技术可以应用于航天器内的局域网组网。最后分析了可见光组网技术的难点,对其未来在航天器内的应用进行了展望。
董振龙
doaj +2 more sources
Guangtongxin yanjiu, 2018 为了降低红绿蓝发光二极管（RGB-LED）可见光通信系统解复用过程中滤光造成的光能量损失,设计了一种基于分光解复用法的RGB-LED可见光通信系统。介绍了分光解复用法的原理和结构组成,对比了分光解复用法与常用的滤光解复用法在解复用过程中的光能量损失,由对比结果可知,分光解复用法可降低滤光造成的光能量损失,提高光源的利用率。利用光通信仿真软件对通信系统进行了仿真测试,仿真结果显示,在相同误码率条件下,采用分光解复用法的系统能有效延长信号的传输距离。
朱明兴 +6 more
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Guangtongxin yanjiu, 2013 VLC（可见光通信）是一种新兴的无线光通信技术,它兼具照明和通信,具有多项优势和广阔的应用前景,已成为近年来研究的热点,结合MIMO（多输入多输出）等技术,可以大大提高其通信速率。研究人员已经提出了多种可用于VLC的MIMO模型和技术,国际上基于MIMO的光通信系统的研究有多点漫射MIMO系统、像素化MIMO系统、非成像MIMO系统和成像MIMO系统。文章对这些系统进行了探讨,总结了各种光MIMO通信模型的优缺点,可作为深入理解和进一步研究可见光MIMO通信技术的基础。
黄星星 +5 more
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, 1980 用TEA CO_2激光辐照纯BCl_3气体,观察到可见荧光具有多种过程。系统地测量了可见荧光的空间、时间、光谱结构,以及它们随激光能量、BCl_3气压等参数的依赖关系。用简化碰撞动力学模型讨论了BCl_3可见荧光过程,得到有效振动温度、可见荧光强度的分析表达式和ρT_延≌C/K(T_ν)的简单关系 ...
黄南堂 +3 more
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Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Esophageal squamous cell carcinoma (ESCC) remains associated with frequent local recurrence and distant metastasis despite advances in radiochemotherapy and immunotherapy, highlighting the need for therapeutic strategies that improve both local tumor control and systemic antitumor immune responses.
Dongdong Wang +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT The past few decades have witnessed multiple outbreaks of pandemics. Hygiene in public facilities is one of the key factors in maintaining public health security. Escalator belts, as frequently touched by passengers, become a potential medium for spreading pathogens.
Yang Xu +12 more
wiley +1 more source
The Evolution of Metal Halide Perovskite Transistors
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Metal halide perovskites (MHPs) offer a revolutionary pathway for next‐generation field‐effect transistors (FETs) because of their exceptional carrier mobilities and cost‐effective processability. However, their transition to practical electronics is significantly challenged by intrinsic instability and imbalanced charge transport. This review
Jiangnan Xia +8 more
wiley +1 more source
, 2007 以硝酸盐为原料、柠檬酸为阻隔剂、EDTA为络合剂经溶胶．凝胶法制备SrBi2O4，并主要考察热处理温度对SrBi2O4晶体结构、光吸收性能以及可见光光催化活性等性能的影响。采用X射线粉末衍射仪、紫外可见分光光度计、电化学工作站、比表面测定仪、差热．热重联用仪对SrBi2O4粉体的物理化学性质进行了表征，通过亚甲基兰在可见光光照下的光催化降解来表征其可见光催化活性。结果表明：SrBi2O4的吸收带边位于可见光区域，且随热处理温度升高而红移；其可见光活性随热处理温度升高而增大。800 ...
刘良军 +4 more
core +3 more sources
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Metal nanoclusters provide abundant catalytically active sites and unique electronic structures that are highly beneficial for enhancing photocatalytic performance; however, their practical application is often hindered by poor photostability.
Yiying Qin +6 more
wiley +1 more source