共查询到20条相似文献,搜索用时 265 毫秒
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当今,在绿色照明概念的倡导下,各种照明技术不断的涌现。光纤照明和LED灯作为新兴的照明技术,始终走在绿色照明领域的前沿。 相似文献
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现代照明观念将“照明品质”与“节能效益”结合,研究如何在满足人类生活的基本需求之下更提供高品质照明,并节约能源,正是现代照明技术研究与产业发展的一致方向。 相似文献
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上海武宁南路道路照明水平评价邓新昌董志云(上海市区路灯管理所)张国峰杨春龙(复旦大学上海市200433)道路照明主要是功能照明。人们通常用五项指标来衡量一条道路的照明水平,这五项指标包括:(1)路面平均亮度。在观察对象的亮度低于眩光亮度情况下,被察对... 相似文献
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LED照明取代传统的白炽灯等已成为不可逆转的趋势,但是目前的LED照明技术与市场却也存在着诸多方面有待我们去完善,并为之而加倍努力。[编者按] 相似文献
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首尔半导体(“Seoul Semiconductor Company Ltd.”前称“汉城半导体”)般份上市编号:KOSDOQ 046890]宣布推出“暖白Acriche”环保照明技术,有关的新产品可应用于日常照明产品,现正式在照明市场推出。Acriche乃崭新的半导体照明技术,无需变流器或镇流器便可以直接应用于交流电器插头(110伏特/220伏特)。容易取代直流电LED照明,创造更光亮的照明环境。 相似文献
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Joachim Ritter 《照明设计》2010,(4):116-117
过去一些年中,灯光的质量成功地变成照明行业背后的驱动力一这是好事,因为好的照明的参数从根本上说理应面对人们的需求。现在我们正在见证照明技术的回归成为争论的首要话题。 相似文献
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当今.在绿色照明概念的倡导下.各种照明技术的涌现,光纤照明始终走在绿色照明领域的前沿。光纤照明作为新兴的照明技术。目前市场上及一般的大众对它的了解并不是很全面、很充分。光纤照明是极具个性色彩,能够满足人们对光环境的不同需求.每一照明系统有多达数百种设计新颖及切割精细的水晶等配件可供选择。目前整个光纤照明行业还处于发展和推广阶段,正由于光纤照明是非常前卫和艺术的照明产品.所以无论是设计师还是厂家、客户在意识上对光纤照明的应用都存在着不少的误区。在此,笔者作为行业中人借本刊与大家进行一下探讨。[编者按] 相似文献
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阐述了沙溪口水电厂照明存在的问题,介绍了整改实 案及所取得的效果,并对水电厂照明设计提出了具体建议。 相似文献
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《电气》2011,(2):14-18
With the incessant development of power market reform,the existing cross-subsidy in electricity tariffs has become a critical problem in China’s power industry development.On the basis of the theories of cross-subsidy and electricity universal service,the authors take foreign countries’ experience as reference to design several solutions to cross-subsidies in electricity tariffs in different phases of China’s power industry development.Furthermore,the application and implementation of these solutions are analyzed in this paper. 相似文献
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The author suggests that the confidence which many biologists have in problem-solving methods is unwarranted and that there are very important limitations in almost all current methods for solving biological problems. The standard problem solving approach that computer scientists use is outlined. An example of an error in an evolutionary tree problem-the case of the African Eve-is discussed 相似文献
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无色透明材料形成的单层薄膜,其颜色由干涉色决定。以白光照射其表面,随薄膜厚度的增加,将出现一系列色彩,这是由薄膜干涉所致。我们可以根据薄膜颜色,估计薄膜厚度。显然,当厚度增大到后界面的影响可以忽略不计的程度(相当于只有一个界面的半无限大情形,本文简称“厚膜”),则“厚膜”颜色恢复为无色透明。半透明材料在基底上形成的薄膜系统,以白光照射所呈现的颜色,由于基底及吸收的影响,则不能简单地以薄膜干涉来分析。对于半透明薄膜系统,首先测量它的光强反射率谱和透射率谱,运用传递矩阵[1]方法计算出薄膜的介质光学常数,再以光学常数计算单层薄膜与“厚膜”的光强透射率谱与反射率谱及它们的色坐标。以菲涅耳公式计算出的反射率谱为半无限大介质反射率谱,这时的色坐标可视为“厚膜”的色坐标。 相似文献
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A survey is provided of Japanese research on ceramic materials for substrates, microwave dielectric ceramics, piezoelectric ceramics, semiconducting ceramics, and superconducting ceramics. Novel processing technologies are described, covering the use of amorphous materials, superfine powders, lamination, multilayer thin films, porous ceramics, and superlattices 相似文献
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Recent progress in inverse problems in electrocardiology 总被引:5,自引:0,他引:5
The considerable progress achieved in the inverse problem of electrocardiography over the last decade has provided grounds for optimism about the possibility of approaching significant clinically relevant applications in the next decade. However, there are a number of basic questions that still remain. In addressing these questions, the authors feel it is important to seek solutions that emphasize physiological rather than mathematical significance. This approach leads to twin requirements for useful inverse solutions: accuracy, defined in a physiologically meaningful (and not just averaged and mathematical) sense, and reliability, not only to measurement noise but also to geometric modeling errors and other uncertainties that are inescapable in practical application. Studies using analytically tractable models may still be relevant, but it seems more important to find solutions to practical inverse problems, which will move the field toward wider acceptance and credibility 相似文献
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