从光色的物理性研究到艺术色彩设计应用

着重揭示光色的内在规律,以及来自于自然的色彩内在结构,传递着形成色彩关系的基本规律和调和规律,为人们提供色彩设计的语素,启示着色彩设计构思的灵感,是设计师进行色彩设计的有力工具,因而成为我们自觉地认识色彩和创造色彩的有效手段。     

国内外关于提高焦炭质量研究的最新进展

通过新日铁、蒂森*克虏伯、法国索拉克等公司的研究结果,详细介绍了焦炭反应后强度CSR与反应性CRI对高炉操作的影响,介绍了美国钢铁协会确定的高炉对焦炭质量指标的要求,煤的性质对焦炭CSR、CRI等性能的影响以及焦炭稳定性和硬度与高温强度之间的关系、CSR的预测模型、高煤比高炉对焦炭质量的要求和国内外对提高焦炭质量的研究状况等,并分析了鞍钢在焦炭质量方面与世界先进高炉之间的差距.     

利用CRI改善人工湿地系统堵塞情况的研究

人工湿地是人为设计建造用于处理污水的工程设施,存在着系统水力负荷偏小、占地面积大、系统供氧不足、氮磷的去除效率偏低、易堵塞等弱点。人工快速渗滤污水处理系统(CRI)是污水土地处理法中的一种类型,系统基本的处理机理是有控制地将污水投放于特定渗滤介质的表面,使其在向下渗透的过程中达到净化污水的过程。实验研究了将CRI作为人工湿地系统的前置处理单元改善人工湿地易堵塞的问题,并对改善原因作了分析,得出利用人工快速滤与人工湿地处理系统组合后,可以有效地改善堵塞状况,同时较一般未设预处理设施的人工湿地可以较长时间运行的结论。     

焦炭钝化技术的研究

以硼酸作钝化剂,通过系列试验考察了钝化剂浓度、焦炭质量和钝化方式对焦炭钝化效果的影响,并探讨了硼酸改善焦炭热性能的机理.试验结果表明,硼酸作为钝化剂可显著改善焦炭的热性能,硼酸溶液浓度越大,其钝化效果越显著,硼酸对中等强度焦炭的钝化效果最为明显,钝化方式对钝化效果无明显影响.     

Industrial Experiment on Coke Spraying With ZBS Additive in Blast Furnace

In order to improve the thermal properties of coke, an industrial experiment on the coke spraying with ZBS additive solution was carried out at coking plant and No. 6 blast furnace （2 000 m^3 ） of Kunming Iron and Steel Co Ltd. The coke reaction index （CRI） of the coke spraying with ZBS additive solution decreases by 10. 56 %, and the coke strength after reaction （CSR） increases by 7.80% in comparison with those of the un-sprayed coke. During the experiment, the average iron output increases by 66. 69 t/d, and the coke rate is reduced by 5. 21 kg per ton iron, while the fluctuation of furnace temperture is small, and sulphur content in hot metal and 100% of hot metal are acceptable.     

混凝气浮-SBR-CRI组合工艺处理低浓度农药废水

采用混凝气浮-SBR-CRI组合工艺处理合肥循环经济示范园内的农药废水,结果表明:混凝气浮作为预处理措施,能够有效去除悬浮物和部分有机物;在生化池中添加大粪,提高了废水的可生化性,补充了碳源,使CODCr、BOD5、NH3-N和TP的去除率分别在80%、90%、70%、90%以上;CRI作为深度处理工艺,进一步降低废水毒性,确保系统出水达标排放。中试研究证明该组合工艺处理低浓度农药废水经济可行。     

Color rendering: Beyond pride and prejudice

It is a truth, universally ignored, that a single metric of color rendering must be in want of another. Evidence presented here, together with those from an earlier study, strongly suggest that the quest for a single metric to quantify color rendering will be in vain. Rather, the strengths of color rendering index (CRI) and of gamut area index (GAI) † seem to counteract the weaknesses of one another, such that together they can be used to guide lighting practitioners in choosing a source that will provide good color rendering of most objects in most applications. The present study was conducted to determine whether sources, both warm and cool, with high levels of both CRI (above 80) and GAI (above 80 and less than 100) were judged better than ones with high levels of just CRI or just GAI. The results support the conclusion that a two‐metric system of color rendering is needed for general illumination applications. © 2010 Wiley Periodicals, Inc. Col Res Appl, 2010     

人工快速渗滤处理水中氨氮的实验研究

针对的氮污染问题,采用人工快速渗滤法去除污水中的氨氮。研究了不同的渗滤介质,不同干湿比,不同的氨氮浓度,以及不同的渗滤介质高度对于去除效果的影响。结果表明:在不同干湿比的情况下,去除效果最好的渗滤介质为表层土,其次是煤灰,最后是沙子;其去除效果的好坏相对应的干湿比依次为23∶1、10∶1、4∶1;对于废水的进水浓度,在相同的情况下,进水浓度越高,其去除氨氮的效果越好;渗滤介质越高的渗滤系统去除效果越好。     

Facile synthesis of the desired red phosphor Li2Ca2Mg2Si2N6:Eu2+ for high CRI white LEDs and plant growth LED device

The red emission with suitable peak wavelength and narrow band is acutely required for high color rendering index (CRI) white LEDs without at the cost of the luminous efficacy. Herein, the Li₂Ca₂Mg₂Si₂N₆:Eu²⁺ red phosphor was prepared with facile solid-state method using Ca₃N₂, Mg₃N₂, Si₃N₄, Li₃N, and Eu₂O₃ as the safety raw materials under atmospheric pressure for the first time, which shows red emission peaking at 638 nm with full width at half maximum (FWHM) of 62 nm under blue light irradiation and becomes the desired red phosphor to realize the balance between luminous efficacy and high CRI in white LEDs. The morphology, structure, luminescence properties, thermal quenching behavior, and chromaticity stability of the Li₂Ca₂Mg₂Si₂N₆:Eu²⁺ phosphor are investigated in detail. Concentration quenching occurs when the Eu²⁺ content exceeds 1.0 mol%, whereas high-temperature photoluminescent measurements show a 32% drop from the room-temperature efficiency at 423 K. In view of the excellent luminescence performances of Li₂Ca₂Mg₂Si₂N₆:Eu²⁺ phosphor, a white LEDs with CRI of 91 as a proof-of-concept experiment was fabricated by coating the title phosphor with Y₃Al₅O₁₂:Ce³⁺ on a blue LED chip. In addition, the potential application of the title phosphor in plant growth LED device was also demonstrated. All the results indicate that Li₂Ca₂Mg₂Si₂N₆:Eu²⁺ is a promising red-emitting phosphor for blue LED-based high CRI white LEDs and plant growth lighting sources.     

添加剂对焦炭热性质影响的研究

焦炭热强度是反映焦炭在高炉中性能的重要指标,可以通过向焦炭中添加某些物质,达到改善焦炭热强度的目的。在所有起作用的添加剂中,其成本与改质效果差异很大,本研究通过两种添加剂的不同配比试验,可以找到能发挥最大经济效益的配合比例。此外,对添加剂改变焦炭微观结构的情况进行了研究,对比了改质前后、反应前后焦炭微观结构的变化,探讨了添加剂改变焦炭热性质的机理。