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科学事业单位财会工作的电算化问题探析
,
科技进步与对策 , 2000,
Abstract: 围绕科学事业单位财务电算化问题,分析了我国财务软件中的缺陷及发展趋势。科学事业单位财会工作电算化财务软件
Nonlocal dark soliton and its linear stability analysis
非局域暗孤子及其稳定性分析

Gao Xing-Hui,Zhang Cheng-Yun,Tang Dong,Zheng Hui,Lu Da-Quan,Hu Wei,<br>,张承云,唐冬,郑晖,陆大全,胡巍
物理学报 , 2013,
Abstract: Due to its future use in communication area, nonlocal spatial optical soliton has been a hot research topic recently. However, because of its special border condition, little research has been done on spatial dark solitons especially on its linear stability. In this paper, a method to analyze linear stability of nonlocal spatial dark soliton is put forward, moreover a numerical simulation and analysis is done on the linear stability of (1+1)-dimensional fundamental and second-order dark soliton in thermal nonlinear medium. Numerical results show that (1+1)-dimensional fundamental nonlocal dark solitons are always stable in their entire existence domain, while second-order dark solitons are oscillatorily unstable and the width of unstable domain depends on propagation constant and nonlocality degree of thermal nonlinear medium. The propagation graphs of initial input with noise addition confirms the correctness of linear stability analysis results.
THE STRUCTURE AND ENERGY FLOW OF GRASSHO PPERS ON STIPA GRANDIS GRASSLAND IN INNER MONGOLIA
大针茅草原蝗虫的群落结构和能流研究

Qiu Xinghui,<br>邱
生态学报 , 1997,
Abstract: 大针茅草原蝗虫的常见种类有11种,其中7种属蝗亚科。毛足棒角蝗短星翅蝗和鼓翅皱膝蝗狭翅雏蝗分别构成蝗虫早、中、晚期的优势种类蝗虫九落的物 丰富度及多样性指数在蝗虫的性中期较高。蝗虫的次级生产力为5.18kJ/m^2.a,是地上净初级生产国物0.18%。通过整个蝗虫群落的能流为16.84kJ/m^2.a不同的蝗虫各 在生态秕有流中具有不同的贡献;其中毛尼中棒角蝗天整个蝗虫 能流中直着十分重要的作用,
Multi-direction Propagation of the Tropical Convection during the Onset Period of the South China Sea Summer Monsoon
南海夏季风爆发前后深对流传播的多向性

GAO Hui,<br>
大气科学 , 2009,
Abstract: Based on the daily outgoing long-wave radiation(OLR) dataset from NCEP/NCAR during 1979-2004,the features of the zonal and meridional propagations of the tropical convection during the onset period of the South China Sea(SCS) summer monsoon(SCSSM) are analyzed in this paper.Results indicate that the directions of both the zonal propagation and the meridional counterpart are quite different.For example,for the zonal propagation,the deep convection can propagate either from the Bay of Bengal(BOB) to SCS,or fr...
Influence of nonlocalization degree on the interaction between spatial dark solitons
非局域程度对空间暗孤子相互作用的影响

Gao Xing-Hui,Yang Zhen-Jun,Zhou Luo-Hong,Zheng Yi-Zhou,Lu Da-Quan,Hu Wei,<br>,杨振军,周罗红,郑一周,陆大全,胡巍
物理学报 , 2011,
Abstract: The interaction between dark solitons in nonlocal self-defocusing media is investigated. Numerical results show that there is a critical condition for interaction between dark solitons in nonlocal self-defocusing medium. Under the critical condition, dark solitons will neither attract nor repell each other because the attractive force and repulsive force between them are identical. Beyound the critical condition, dark solitons may attract or repell each other depending on the nonlocalization degree and distance between them. The value of the critical condition is found.
Experimental and theoretical investigations of spatial dark solitons in nonlocal nonlinear medium
非局域非线性介质中空间暗孤子的理论和实验研究

Zhou Luo-Hong,Gao Xing-Hui,Yang Zhen-Jun,Lu Da-Quan,Guo Qi,Cao Wei-Wen,Hu Wei,<br>周罗红,,杨振军,陆大全,郭旗,曹伟文,胡巍
物理学报 , 2011,
Abstract: In this paper, we investigate spatial dark solitons in nonlocal nonlinear media. Based on the nonlocal nonlinear Schr dinger equation and the diffusion equation, the numerical solutions with different propagation constants are obtained by using the Newton iterative method. And it is found that there exist dark soliton solutions .and the relation between the width of dark soliton and the degree of nonlocality for any propagation constant under arbitrary nonlocal degrees different propagation constants. In experiments, we observe the formation of the spatial dark solitons in the solution of dye. The influence of Gaussian background on dark solitons is also discussed, and the numerical results are in agreement with the experimental results.
Applications of spectral renormalization method to the research of nonlocal optical spatial soliton
光谱重置法在非局域空间光孤子研究中的应用

Zheng Rui,Gao Xing-Hui,Cao Wei-Wen,Chen Li-Xi,Lu Da-Quan,Guo Qi,Wu Li-Jun,Hu Wei,<br>郑睿,,曹伟文,陈利霞,陆大全,郭旗,吴立军,胡巍
物理学报 , 2010,
Abstract: 利用光谱重置法在数值上求解非局域非线性薛定谔方程,快速准确地计算出非局域非线性介质中空间光孤子的波形,并得到在不同非局域程度下形成孤子的临界功率和临界束宽的关系.研究结果表明,在任意非局域程度条件下都可以形成稳定的空间光孤子.在响应函数不同时分别与解析解进行对比,发现数值解和解析解只有在强非局域和弱非局域这两种极限条件下是一致的,并给出了对应解析解的有效范围.
Preliminary Study on the Adsorption of Quinolones to Kaolin
高岭土对喹诺酮类抗生素吸附特性的初步研究

GAO Peng,MO Ce-hui,LI Yan-wen,WU Xiao-lian,ZOU Xing,HUANG Xian-dong,LIU Li-wei,<br>,莫测,李彦文,吴小莲,,黄显东,刘利伟
环境科学 , 2011,
Abstract: 以高岭土为吸附剂进行2种喹诺酮类抗生素(诺氟沙星和环丙沙星)的静态吸附实验,考察平衡时间、初始浓度、pH值、阳离子种类与强度等对吸附性能的影响.结果表明,高岭土对诺氟沙星和环丙沙星的吸附过程均符合二级反应动力学方程,吸附速率常数分别为0.021 kg/(mg·h)和0.156 kg/(mg·h);诺氟沙星和环丙沙星可划分为初始快速吸附阶段和随后缓慢吸附阶段;诺氟沙星和环丙沙星的吸附等温线均能较好地符合Freundlich方程和Langmuir方程,吸附容量(lgKf)分别为2.026和2.273,最大吸附量(Qm)分别为135.14 mg/kg和142.86 mg/kg;高岭土对诺氟沙星和环丙沙星的吸附效果在pH值为5时最好,其次在6~8之间;阳离子对高岭土吸附诺氟沙星和环丙沙星有不同程度的影响,价态越高,影响越大;Ca2+浓度对诺氟沙星和环丙沙星吸附量的影响明显,分别由Ca2+浓度为0.01 mg/L时的92.07mg/kg和96.71mg/kg,降低为Ca2+浓度0.1 mg/L时的58.12 mg/kg和58.85 mg/kg.本研究为含抗生素废水的处理提供了一个途径.
昆虫毒理学发展与展望
希武,韩召军,,刘泽文
应用昆虫学报 , 2010,
Abstract: 论文对昆虫毒理学的发展现状以及我国昆虫毒理学工作者今年取得的成绩进行论述,并对昆虫毒理学的发展做了展望。从研究思路、昆虫毒理学家的数量、发表sci论文数、杀虫药剂的创制以及毒理机制和杀虫药剂抗药性研究等方面与国外进行了比较。
高水平应力巷道连续“双壳”治理底臌实验研究
杨本生,贾永丰,孙利,,
煤炭学报 , 2014,
Abstract: 基于深井工程软岩巷道严重底臌这一状况,以河北陶二煤矿扩大区北大巷条件为工程背景,对连续“双壳”如何有效控制深井软岩巷道底臌进行了实验研究。通过现场地应力测量、解算,确定了巷道围岩应力状态,采用自行设计的双向加载试验台,进行深井软岩巷道不同侧压系数时底板围岩变形失稳特征的相似模拟实验,得到底板位移场变化规律及围岩应力分布状态。模拟实验结果表明:底板连续“双壳”加固巷道底臌量较原支护巷道平均减小53%;底板浅孔注浆(浅部壳体)提高岩体承载能力,深孔锚索束注浆(深部壳体)扩大岩体承载范围,浅深壳体共同承载、协同变形有效控制了底板围岩稳定。最后揭示了连续“双壳”治理底臌机理。
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