GaAs1-xPx:N中N杂质态发光性质研究

学位：理学硕士院系专业：物理与机电工程学院物理学系_无线电物理学号：xy00004

废食用油脂固定床酶法合成生物柴油研究

利用废食用油脂合成生物柴油，既能够实现废弃物的清洁利用，又能提供可再生的绿色能源。采用固定化假丝酵母脂肪酶为催化剂，在三级固定床反应器内，采用分级流加甲醇的方式，每级醇油摩尔比为1：1，探讨了酶质量分数、溶剂质量分数、水质量分数、温度、反应液流速等与产物中甲酯质量分数的关系。实验结果表明，当油中酶、溶剂、水的质量分数分别为25％，15％，10％，反应液流速为1．2mL／min，温度为45℃时，产物中甲酯质量分数达到最大值91．08％，其中油酸甲酯质量分数最高。产品经过精制后，理化性质符合美国和德国生物柴油标准，绝大多数指标优于我国O^#柴油

Electrical load management terminal apparatus based on demand response

本实用新型公开了一种基于需求响应的用电负荷管理终端装置，包括控制器模块、电能微处理器模块、电能采集模块、通信模块、存储模块和参数监测模块；所述电能采集模块与电能微处理器模块连接；所述电能微处理器模块、通信模块、参数监测模块和存储模块分别与所述控制器模块连接。本实用新型不仅能够根据自设的控制策略对用电负荷进行控制，还能够在基于需求响应的基础上实现对用电负荷的实时控制，实现了用电负荷的有效管理，有效的缓解了高峰时段电力供应紧张的局面，大大提高了发电机组的运行效率，并且具有较高控制精确度的优点

Exploitation and utilization of material resource of biodiesel

Biodiesel&nbsp;is&nbsp;one&nbsp;of&nbsp;the&nbsp;important&nbsp;measures&nbsp;to&nbsp;solve&nbsp;the&nbsp;problems&nbsp;of&nbsp;energy&nbsp;shortage&nbsp;and&nbsp;environmental&nbsp;pollution.&nbsp;During&nbsp;developing,&nbsp;the&nbsp;shortage&nbsp;of&nbsp;raw&nbsp;materials&nbsp;is&nbsp;the&nbsp;bottleneck&nbsp;of&nbsp;scale.&nbsp;China&nbsp;is&nbsp;short&nbsp;of&nbsp;oil&nbsp;resource&nbsp;and&nbsp;arable&nbsp;land,&nbsp;but&nbsp;is&nbsp;abundant&nbsp;of&nbsp;oil&nbsp;plants,&nbsp;agricultural&nbsp;residues&nbsp;and&nbsp;other&nbsp;lignocellulosic&nbsp;biomass.&nbsp;On&nbsp;the&nbsp;basis&nbsp;of&nbsp;the&nbsp;national&nbsp;conditions&nbsp;of&nbsp;China,&nbsp;the&nbsp;source&nbsp;of&nbsp;biodiesel&nbsp;raw&nbsp;materials&nbsp;is&nbsp;analysed,&nbsp;the&nbsp;factors&nbsp;of&nbsp;classification&nbsp;standard&nbsp;of&nbsp;raw&nbsp;materials&nbsp;are&nbsp;studied,&nbsp;and&nbsp;four&nbsp;measures&nbsp;to&nbsp;solve&nbsp;the&nbsp;shortage&nbsp;of&nbsp;materials&nbsp;resource&nbsp;are&nbsp;proposed.</span

THE PHONON SIDEBAND STRUCTURE ON N_X LUMINESCENCE IN GaAs_(1-x)P_x∶N ALLOYS

本文采用荧光窄化技术，对低组分的gAAS（1-X）PX∶n（X＝0.76，0.65）混晶材料中nX束缚激子的声子伴线进行了研究.在低温下，选择激发nX带时，我们得到了与gAP∶n低温发光谱中类似的声子伴线结构.根据实验结果，给出了混晶中各种声子的能量.另外，对组分为X＝0.76的gAAS（1-X）PX∶n混晶样品，我们还首次观察并分析了多声子重现光谱.luorescence line narrowing technology has been used to study the phonon sidebands of Nx-bound excitons in GaAs1-xPx: N in details.Under selective excitation into inhomogenously broadened Nx band at low temperature, the sharp phonon sidebands like those in low temperature PL spectrum For GaP: N are observed.According to the experimental results, we obtained the energy values of various phonons in GaAs1-xPx: N alloys with the composition x=0.76 and 0.65.The photoluminescence spectrum with periodically repeated phonon sideband structure For GaAs1-xPx: N (x=0.76) is observed and analyzed For the First time.国家和福建省自然科学基

生物柴油原料资源利用与开发

发展生物柴油产业是解决我国石化能源短缺与环境污染问题的一个重要措施。在生物柴油产业发展过程中,原料不足成为规模化的瓶颈。我国现阶段油脂资源短缺,耕地资源匮乏,野生油料植物资源丰富,秸秆类农林废弃物资源量巨大。在结合我国国情基础上,分析现今我国生物柴油原料的来源,探讨建立生物柴油原料等级标准应重点考虑的指标,提出解决原料资源的四个措施

生物柴油转化效果测定方法的研究

It&nbsp;is&nbsp;various&nbsp;in&nbsp;raw&nbsp;materials,&nbsp;catalyst,&nbsp;technological&nbsp;process&nbsp;for&nbsp;the&nbsp;production&nbsp;of&nbsp;biodiesel.&nbsp;In&nbsp;order&nbsp;to&nbsp;compare&nbsp;the&nbsp;different&nbsp;methods,&nbsp;it&nbsp;is&nbsp;necessary&nbsp;to&nbsp;set&nbsp;up&nbsp;a&nbsp;kind&nbsp;of&nbsp;suitable,&nbsp;universal&nbsp;method.&nbsp;On&nbsp;a&nbsp;basis&nbsp;of&nbsp;analyzing&nbsp;the&nbsp;relevant&nbsp;methods&nbsp;both&nbsp;at&nbsp;home&nbsp;and&nbsp;abroad,&nbsp;a&nbsp;method&nbsp;is&nbsp;proposed,&nbsp;in&nbsp;which&nbsp;gas&nbsp;chromatography&nbsp;is&nbsp;used&nbsp;to&nbsp;measure&nbsp;the&nbsp;reaction&nbsp;product,&nbsp;methyl&nbsp;heptadecanoate&nbsp;is&nbsp;used&nbsp;as&nbsp;standard&nbsp;substance,&nbsp;internal&nbsp;standard&nbsp;method&nbsp;is&nbsp;used&nbsp;for&nbsp;calculating&nbsp;the&nbsp;con.&nbsp;version&nbsp;rate&nbsp;and&nbsp;productivity.</span

Recent Progress in Non-Precious Metal Oxygen Reduction Reaction Catalysts with an Encapsulation Structure

燃料电池中广泛使用的铂基催化剂价格昂贵、储量低、容易失活，因此亟待开发廉价、高效非铂催化剂. 过渡金属(Fe、Co、Ni等)/杂原子共掺杂催化剂、杂原子掺杂（N、P、S、F等）碳材料以及碳材料包覆过渡金属复合物是目前发现的几类性能优异的非贵金属氧还原催化剂. 其中碳材料包覆过渡金属催化剂作为一类新型的高性能催化剂，对其研究还有待深入. 本文主要阐述了国内外在包覆型非贵金属氧还原催化剂方面的研究进展，从合成，性能，机理等方面对该类催化剂进行了总结，力求助益于该类催化剂的发展.Platinum-based materials, the state-of-the-art catalysts for fuel cells, suffer from prohibitive costs, limited resources and insufficient durability. Accordingly, tremendous efforts were made in searching for efficient, durable and inexpensive alternatives to precious-metal electrocatalysts for the oxygen reduction reaction (ORR). Transition-metals (Fe, Co)/nitrogen co-doped hybrids, heteroatom (N, P, S, F, et al) doped carbons and composites with transition-metals encapsulated in graphitic layers are reported as the most efficient non-precious metal ORR catalysts. Among the various non-precious metal ORR catalysts, transition-metals encased in graphitic layer catalysts are a novel type of catalysts for ORR with high activity and durability, and thus, the in-depth researches are highly desirable. Here, we present the recent research progress in transition-metals encased catalysts from the aspects of synthesis, activity and catalytic mechanism, in an effort to promote the developments of these catalysts.科技部973项目（No. 2012CB215500）、国家自然科学基金项目（No. 21373199，No. 21433003）、中国科学院先导专项（No. XDA09030104）、吉林省科技发展项目（No. 20130206068GX，No. 20140203012SF，No. 20102204）和吉林省自然科学基金项目（No. 20150101066JC）资助作者联系地址：1. 中国科学院长春应用化学研究所，电分析国家重点实验室，吉林 长春 130022；2. 中国科学院长春应用化学研究所，先进化学电源实验室，吉林 长春 130022Author's Address: 1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; 2. Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Changchun 130022, China通讯作者E-mail：[email protected]

Marine information gathering, transmission, processing, and fusion: current status and future trends

海洋信息的获取、传输、处理和融合,不仅在海洋科学研究、环境调查、资源开发、权益维护与安全防卫中发挥重要的作用,也因其应用环境的特殊性而成为信息科学研究的热点之一.海洋信息技术近30年的发展分享信息理论的丰富成果,同时突显出传播物理、信号处理以及海洋环境的紧密关系,这种结合在其他信息领域较为少见.本文主要关注海上目标探测、识别理论及方法;水下目标探测机理和识别方法;水下通信与海空一体信息传输;海洋环境遥感遥测理论与方法;海洋数据处理与信息融合方法与技术等.旨在通过对海洋信息获取、传输、处理和融合前沿研究的评述,凝练若干海洋信息关键科学问题,为我国海洋信息基础理论与方法的发展提供思路.Marine information gathering, transmission, processing, and fusion play an important role in many areas, such as marine science research, environmental expedition, resource exploitation, and security and defense.Owing to its specific application environment, it has also become a popular information science research area.Like other branches of information science, the development of marine information technology over the last thirty years has benefited significantly from advances and achievements in general information theory. However, the manner in which it highlights the close bonding among propagation physics, signal processing, and the marine environment is seldom seen in other areas. This paper first gives a comprehensive overview of the current status of the theory and methods used in surface target acquisition, underwater target recognition, underwater communications and sea-air integrated information transmission, oceanic remote sensing, and data processing and information fusion. Subsequently, with the aim of helping to advance fundamental research on marine information important scientific problems to be addressed are presented.国家自然科学基金(批准号:61531017,61431020,61431005,61531015,61531018,41376104)资助项