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Search Results: 1 - 10 of 323503 matches for " <br>吴加奇 "
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Effects of molten slag on coal gasification reaction with CO2 at elevated temperature
高温下渣熔融对煤焦-CO2气化反应特性的影响

WU Jia-qi,XU Shen-qi,ZHOU Zhi-jie,YU guang-suo,WANG Fu-chen,<br>,许慎启,周志杰,于广锁,王辅臣
燃料化学学报 , 2012,
Abstract: The CO2 gasification reactivity of coal chars blended with different proportions of coarse slag were investigated by using an STA449F3 thermo-balance in the isothermal mode at the temperature range from 900 ℃ to 1 380 ℃.The thermal behavior of the sample was studied using thermo-gravimetric analysis and differential scanning calorimetry(TG-DSC),and the two regions(i.e.the low temperature region and the high temperature region) for the gasification reactivity and carbon conversion of coal chars were defined according to the flow temperature of coal ash fusion.The gasification reactivity and carbon conversion of coal chars with coarse slag added are improved in the low temperature region.But the addition of coarse slag decreases the carbon conversion,and the gasification reactivity of coal chars blended with coarse slag to certain ratio also decreases in the high temperature region.It is indicated that the initial gasification reaction of coal chars is chemically controlled in the low temperature region,and diffusively controlled in the high temperature region.
A METHOD OF SPEEDY COMPARISON OF SQUENCES AND TIS TO IDENTIFY PCR PROUCT
一种快速序列比较方法及其在PCR扩增产物判定中的应用

Wu Jiajin,<br>
生物物理学报 , 1995,
Abstract: For increasing spaal of sequence comparison, some improvemnts, based on analysis two important faCtors f (1) disk access time and (2) searching, locating and translating time, which slow down the sped of comparison, are suggestal. An example of identifying products of PCR indicateS that the program is useful.
高温下渣熔融对煤焦-co2气化反应特性的影响
,许慎启,周志杰,于广锁,王辅臣
燃料化学学报 , 2012,
Abstract: ?在sta449f3型热天平上采用等温热重法研究了加入不同比例粗渣的煤焦在反应温度900~1380℃的气化反应性。利用热重-差示扫描量热法(tg-dsc)对煤焦的热行为进行分析,主要考察了加入不同比例粗渣、反应温度对煤焦反应性的影响。结果表明,煤焦-co2反应过程中,气化反应性和碳转化率可根据煤灰熔融流动温度分为相对低温段和高温段。在低温段,加入粗渣增加了煤焦的气化反应性和碳转化率;在高温段,加入粗渣会减小煤焦的碳转化率,并当粗渣加入量超过一定比例时,会降低煤焦的气化反应性。气化初期反应速率可根据粗渣熔融流动温度分为低温区域的化学反应控制和高温区域的扩散控制。
DOUBLE WAVE DESCRIPTION OF QUANTIZED RLC CIRCUIT WITH EXTERNAL SOURCE
有源RLC电路量子化的双波描述

Wu Qixue,<br>
光子学报 , 2002,
Abstract: 采用正则变换量子化以及规范变换方案,得到有源RPL电路量子化哈密顿算符及其波函数,引入双波函数描述其量子状态,得到了电荷,电流等物理量的时间演化方程,对有源RLC电路给出更完整的描述。
现代三角洲动力沉积过程与沉积体系发育机制评述:以珠江三角洲为例
Reviews on Sediment Dynamics and Depositional Systems in the Modern Delta, with a Particular Emphasis on the Pearl River Delta
 [PDF]


Climate Change Research Letters (CCRL) , 2012, DOI: 10.12677/CCRL.2012.13014
Abstract: 全球变化和海平面上升背景下大型三角洲体系的响应机制与应对措施,将是关系到区域和全局性的环境与生态安全问题。现代珠江三角洲是一个受构造活动与地貌控制、河流与潮汐共同作用的内陆架浅水型三角洲,在世界大型海岸三角洲研究中具有独特的地位。过去由于水下三角洲勘探与研究不足,尤其动力沉积过程与潮汐沉积地层研究的薄弱,致使现代珠江三角洲发育演变规律长期成为学术界争论的焦点问题。本文将从三角洲类型与地层模型、三角洲动力沉积过程、珠江三角洲等三个方面进行评述,提出三角洲研究的突破口在于从三个时间尺度,即现代动力沉积过程、百年尺度的高分辨率沉积地层和千年尺度的沉积体系,探讨三角洲发育演变与动力沉积机制。
The responses and countermeasures of coastal megadeltas to global change and intense human activities are highly involved with environmental and ecological safeties over regional and even global scales. The modern Pearl Riverdelta (approximately 6000 years B.P.) is an inner-shelf or shoal-water delta controlled by tectonics and topography, and subject to combined fluvial and tidal forcing, and thus it plays a unique role among coastal megadeltas in the world. Since there is a great lack in exploration on the submerged delta and a large gap in understanding sediment dynamics and tidal stratigraphy, the evolution of the modernPearldelta has longly been a disputing focus in the sedimentological community. This paper will focus on three themes: classification and model of deltas, sediment dynamics, and thePearl Riverdelta evolution. Then it follows that future investigations should be devoted to three different processes or systems with distinct time scales in the delta or estuary: sediment dispersal, stratigraphic succession, and depositional system, and further to understanding the evolution and mechanism of the delta.
DISTRIBUTION PATTERNS OF CIS-TRANSCRIPTION ELEMENTS IN5'' REGULATIVE REGIONS OF VERTEBRATE ACTIN GENES
脊椎动物肌动蛋白基因顺式转录元件的分布模式

Liu Tao,Wu Jiajin,<br>刘涛,
生物物理学报 , 1999,
Abstract: 脊椎动物肌动蛋白各亚型的表达具有严格的与物种无关的组织特异性; 本文改进和完善了一种顺式元件匹配预测方法, 在实验资料的基础上, 统计出5 种顺式元件的核苷酸分布权重矩阵模式, 对脊椎动物β细胞质亚型和α平滑肌亚型肌动蛋白基因的5' 调控区进行顺式元件的匹配预测和序列分析,获得了相应亚型的特异性的顺式元件编码分布模式,并分析了其进化趋势。
灌溉方式对黄淮稻区优质粳米品质的影响
,,陈博聪,信彩云,陈峰,王瑜,孙召文,清**
应用生态学报 , 2014,
Abstract: 为探明不同水深处理对优质稻米的影响,研究了湿润、浅水、深水3种灌溉方式对优质粳稻(圣稻14、圣稻2572、圣稻18)籽粒外观、稻米直链淀粉、蛋白质含量及淀粉rva谱的影响,分析了稻米品质与理化指标之间的关系.结果表明:浅水灌溉下籽粒面积、周长、粒长、稻米蛋白质含量显著高于其他灌溉方式,垩白率和垩白度的表现相反;rva谱的最高黏度和热浆黏度值以湿润灌溉最高,深水灌溉最低,最终黏度值以深水灌溉最低;不同品种rva谱的崩解值、消减值、回复值及稻米直链淀粉含量对3种灌溉方式的响应存在明显的基因型差异.圣稻14以湿润灌溉的食味品质最好,圣稻18则以深水灌溉最好.相关分析表明,稻米rva谱特征值与稻米外观指标及蛋白质含量之间存在显著的相关性.回归与通径分析表明,粒型是影响崩解值与消减值的主要因子,而稻米蛋白质与直链淀粉含量是影响回复值的主要因子.?
DOUBLE-WAVE DESCRIPTION OF THE MOTION OF ONE-DIMENSIONAL CHARGED HARMONIC OSCILLATOR IN THE PERPENDICULAR UNIFORM MAGNETIC FIELD AND UNIFORM ELECTRIC FIELD
互相垂直的均匀磁场和电场中一维带电谐振子的双波描述

Wu Qi-Xue,<br>
物理学报 , 2000,
Abstract: 研究互相垂直的均匀磁场和电场中一维带电谐振子的量子单波及量子双波的描述
DOUBLE-WAVE FUNCTION DESCRIPTION FOR THE MOTION OF CHARGED PARTICLE IN BOTH UNIF ORM MAGNETIC FIELD AND THREE-DIMENSIONAL HARMONIC OSCILLATOR POTENTIAL FIELD
带电粒子在均匀磁场与三维各向同性谐振子场中运动的双波描述

WU QI-XUE,<br>
物理学报 , 2000,
Abstract: Double-wave function quantum theory is applied to describe the motion of charged particle in both uniform magnetic field and three-dimensional harmonic oscillat or potential field.Quantum results and classical limit results are derived respe ctively.A comparison between the classical limit results and those of classical mechanics is made.
DOUBLE-WAVE DESCRIPTION OF THE MOTION OF SPINNING ELECTRON IN BOTH ELECTROMAGNETIC FIELD AND TWO-DIMENSIONAL HARMONIC OSCILLATOR POTENTIAL FIELD
有旋电子在电磁场及二维谐振子场中运动的双波描述

WU QI-XUE,<br>
物理学报 , 2000,
Abstract: 研究有旋非相对论性电子在相互垂直的均匀电磁场及二维谐振子场中运动的量子单波及量子双波描述.
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