CAN总线在汽车轮胎监测系统中的应用设计

针对当前独立的汽车轮胎监测系统存在的弊端提出一种新的实现方案,动态监测汽车各轮胎的参数,并把动态参数通过CAN总线传输到汽车驾驶室仪表上,实现汽车轮胎故障预警功能.该方案增加了系统的可靠性、灵活性,扩展了汽车轮胎压力监测系统的使用场合,在大型车辆的安全系统中有很高的实用价值.     

染料敏化太阳能电池对电极的研究进展

简要说明了染料敏化太阳能电池中对电极的作用,指出对电极是染料敏化太阳能电池的重要研究方向。详细介绍了各类对电极的特点和制备工艺,通过对比发现,铂对电极性能最好,但高成本限制了它的应用;价格低廉、性能较高的碳和聚合物对电极的发展前景广阔。最后论述了对电极的发展方向和国内外的研究现状。     

2－氨基－4－氯苯酚的合成研究

提出了以对二氯苯为原料，经硝化，水解和还原三步合成２－氨基－４－氯苯酚的讨了影响反应的因素。产品总收率达７７％。     

The h-p version of the finite element method

The paper is the second in the series of two analyzing the h-p version of the finite element method. It generalizes the results of the first part (Guo, Babuska 1986) and presents computational results.Supported by the NSF Grant DMS-8315216Partially supported by ONR Contract N00014-85-K-0169     

一种新型的激光—等离子体辅助化学气相沉积装置的研究

为探索用激光离子体共同辅助化学气相沉积过程以实现室温沉积的可能性，设计并制造了一种新型的ＣＶＤ装置，实际了ＳｉＨ４－ＮＨ３－Ｎ２体系制取Ｓｉ３Ｎ４膜的试验。结果表明，激光和等离子体是可以相互促进，共同辅助ＣＶＤ过程的，且两者均处于较代的能量水平。     

A π-extended tetrathiafulvene derivative: Synthesis and photoluminescence properties

Solid-state emissive organic materials have received increasing attention due to their prospective applications in large-area. Here, a novel π-extended tetrathiafulvene derivative DPD with donor-π-donor structure has been newly developed to produce the prominent characteristic of aggregation-induced enhanced emission (AIEE) that exhibits higher fluorescence quantum efficiency in solid film compare to its solutions. The AIEE mechanism of DPD was studied in detail through photophysical investigations and can be dominant attributed to the formed excimer state of DPD and J-aggregates in solid state.     

Investigation of Nitrite Production Pathway in Integrated Partial Denitrification/Anammox Process via Isotope Labelling Technique and the Relevant Microbial Communities

In this study,the nitrogen removal performance of partial denitrificaiton/anammox(PDA) process was investigated by using an UASB reactor.High total nitrogen(TN) removal efficiency(91.97%) was achieved at an influent nitrogen loading rate of 0.64 kg/(m³·d).Anammox bacteria did execute the function of converting nitrate to nitrite in PDA system according to ¹⁵N isotope labeling experiments and the contribution was approximately 36.3%.Candidatus＿Brocadia,Candidatus＿Kuenenia an...     

路灯双侧交错布置方式和设计要求

道路照明灯具的布置方式与灯具的安装高度、间距等密不可分,采用双侧交错灯具布置方式应满足《城市道路照明设计标准》(CJJ 45—2015)的相关要求。为使相关照明值达到规范标准,分析此种布置方式的设计要求。     

Molecular and Physiological Responses of Citrus sinensis Leaves to Long-Term Low pH Revealed by RNA-Seq Integrated with Targeted Metabolomics

Low pH-induced alterations in gene expression profiles and organic acids (OA) and free amino acid (FAA) abundances were investigated in sweet orange [Citrus sinensis (L.) Osbeck cv. Xuegan] leaves. We identified 503 downregulated and 349 upregulated genes in low pH-treated leaves. Further analysis indicated that low pH impaired light reaction and carbon fixation in photosynthetic organisms, thereby lowering photosynthesis in leaves. Low pH reduced carbon and carbohydrate metabolisms, OA biosynthesis and ATP production in leaves. Low pH downregulated the biosynthesis of nitrogen compounds, proteins, and FAAs in leaves, which might be conducive to maintaining energy homeostasis during ATP deprivation. Low pH-treated leaves displayed some adaptive responses to phosphate starvation, including phosphate recycling, lipid remodeling, and phosphate transport, thus enhancing leaf acid-tolerance. Low pH upregulated the expression of some reactive oxygen species (ROS) and aldehyde detoxifying enzyme (peroxidase and superoxidase) genes and the concentrations of some antioxidants (L-tryptophan, L-proline, nicotinic acid, pantothenic acid, and pyroglutamic acid), but it impaired the pentose phosphate pathway and V_E and secondary metabolite biosynthesis and downregulated the expression of some ROS and aldehyde detoxifying enzyme (ascorbate peroxidase, aldo-keto reductase, and 2-alkenal reductase) genes and the concentrations of some antioxidants (pyridoxine and γ-aminobutyric acid), thus disturbing the balance between production and detoxification of ROS and aldehydes and causing oxidative damage to leaves.