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Search Results: 1 - 10 of 345366 matches for " 吕莉娇<br>LI Qiang "
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Hom-Jordan李代数的交换扩张
Abelian extensions of Hom-Jordan Lie algebras
李强,马丽丽,王晓燕,吕莉娇<br>LI Qiang, MA Li-li, WANG Xiao-yan, LYU Li-jiao
- , 2018, DOI: 10.6040/j.issn.1671-9352.0.2018.059
Abstract: 摘要： 通过Hom-Jordan李代数T的表示,得到构造Hom-Jordan李代数T⊕V的充分必要条件。证明了Hom-Jordan李代数的等价交换扩张给出相同的表示。通过交换扩张的截面得到一个2-上圈。
Abstract: Using representations of Hom-Jordan Lie algebras T, the sufficient and necessary conditions of constructing Hom-Jordan Lie algebra T⊕V are obtained. The equivalent abelian extensions of Hom-Jordan Lie algebras giving the same representation is proved. A 2-cocycle by a section of the abelian extension is obtained
The effect of molecular weight of chitosan on soil''''s carbon, nitrogen and soil respiration
不同分子量壳聚糖对土壤碳、氮及呼吸的影响
ZHANG Wen-Qing,LU Wei-Jiao,CHEN Qiang,LI Hui-Xin,<br>张文清,吕伟娇,陈强,李辉信
生态学报 , 2006,
Abstract: The molecular weight (MW) of chitosan added to the soil ecosystem has an apparent influence on the microbial biomass carbon and nitrogen (MBCN) from soil, soil respiration rate (SRR) and the mineral nitrogen e.g. NO_3-N and NH_4-N in soil, all of which increase with the amount of chitosan used. In the case of chitosan with lower MW, the MBCN, SRR and the NH_4-N increase rapidly first, and then gradually decrease. When chitosan with either medium or high MW was applied, no apparent change was observed on the MBCN and SRR at the initial period, starting from the 14 th day they increase rapidly, followed by the decrease after 34 days. The changes of NO_3-N follow the same trend as that the MBCN and SRR exhibited. This is in contrast to the NH_4-N. The latter increases significantly at the beginning of the addition of chitosan with lower molecular weight to the soil, and then slows down. When chitoson with medium MW was applied, the changes of NH_4-N were directly associated with the concentration of chitoson. After chitoson with high MW was added to the soil, one cannot observe the considerable changes of NH_4-N until the 24 th day.
The lichen genus Lecanora from Bailong river valley of Gansu province, China
甘肃白龙江流域的茶渍属地衣
LU Lei,WANG Chen-Lei,REN Qiang,SHI Xiu-Li,ZHAO Zun-Tian,<br>吕蕾,王辰磊,任强,史秀莉,赵遵田
微生物学报 , 2008,
Abstract:
The lichen genus Lecanora from Bailong river valley of Gansu province, China
甘肃白龙江流域的茶渍属地衣
LU Lei,WANG Chen-Lei,REN Qiang,SHI Xiu-Li,ZHAO Zun-Tian,<br>吕蕾,王辰磊,任强,史秀莉,赵遵田
菌物学报 , 2008,
Abstract:
Application of fuzzy control in brushless DC servo system
基于模糊控制的直流无刷伺服控制系统
LI Qiang,LIANG Li,<br>李 强,梁 莉
控制理论与应用 , 2003,
Abstract: The paper introduces a fuzzy algorithm for processing the computer-control servo system, where high speed and accurate were required. The property in steady-state deviation, regulating time and response time of the fuzzy-controlled servo system was analyzed. DSP digital processor performed the servo control. By Matlab language, the response of the fuzzy control was simulated, and then a control algorithm combined PI control with fuzzy control was formulated.
Novel image scrambling algorithm based on changing pixel values
基于单一像素值改变的图像置乱新算法
HE Li-ming,QIANG Sai-li,<br>何立明,强赛莉
计算机应用研究 , 2012,
Abstract: Aiming at the safe problem of digital image transmission, this paper presented a new image scrambling algorithm based on changing the pixel values. The algorithm improved the Vigenere encryption algorithm, made it can be applied in the digital image encryption. Experimental result shows that, the image which is encrypted by this algorithm has a high safety, compared with the traditional image scrambling algorithm based on changing the single pixel. The method has a better ability of resist noise, it also has better flexibility, it can encrypt any size of digital images. The scrambling degree of the encrypted image has the close relationship with the choice of keyword, and it can encrypt any size of digital images. So the above superiorities of this algorithm make it suitable for digital image of the network transmission process, and other fields which have higher safety requirements for digital images.
Study on Solid State Fermentation of the Mycelium from Amanita vittadinii
白鳞粗柄鹅膏菌丝的固态发酵
Li Zongju Qiang Likun,<br>李宗菊,强莉坤
微生物学报 , 2002,
Abstract: 近年来 ,因鹅膏菌肽类毒素可用于分子生物学、医学、农学等领域而具广阔的开发前景1] 。但由于鹅膏菌资源有限 ,而人工合成的毒素又不具活性 ,所以目前尚难以开发利用。加之鹅膏菌大多属于外生菌根真菌 ,虽然已在少数种的菌根合成方面取得了一些进展2～ 4 ] ,但至今该属中绝大部份种仍属于自然界中难培养或未能培养的微生物 ,难以人工、半人工栽培。因此 ,目前国内还没有一种能规模化开发的毒素产品。而现在作为生化试剂的肽类毒素全部来源于欧美的毒鹅膏子实体 ,售价在每克 1 0万美元以上。所以 ,研究如何开发利用我国的鹅膏菌及其毒素具…
Research on water quality simulation and prediction of small scenic water body
小型景观湖水质模拟及应用研究
Huang Li,He Qiang,Peng Shujuan,<br>黄莉,何强,彭述娟
环境工程学报 , 2011,
Abstract: For size and using of gray water,the water quality of small scenic water body is relatively changed faster with environment conditions and inflows than larger and deeper water body.The eutrophication progress is also faster in small scenic water.EFDC and WASP model can be linked to establish hydro-quality model to simulate and predict the water quality variation of small scenic water body.The model was calibrated and verified by field test data and applied to Minzhu Lake under different water quality contro...
A probe into the maintaining mechanism of one type of the double-ridges processes of West Pacific subtropical high
一类西太平洋副热带高压双脊线过程维持机制初探
QI Li,ZHANG Zu-Qiang,HE Jin-Hai,CHEN Hua,<br>祁莉
地球物理学报 , 2008,
Abstract: Based on statistical analysis of the 156 double-ridges processes of West Pacific subtropical high from May to Oct.in 1979~2005,it is found in this paper that 87.82% of the double-ridges processes occur because a new ridge is born on the southern flank and there is distinct "seasonal phase-lock",i.e.there are two peaks in the occurring frequency during mid-Jul.and mid-Sep.The composite analysis of the most typical pattern of "born in south and existing in south" shows that the formation,maintenance and disappearance of this type of double-ridges processes have close relationship with propagation of the easterly waves from southeast to northwest on the periphery of the southern flank of subtropical high.The evolution of the anomalous circulation at 500 hPa shows weakening and disappearing of the ridge on the northern flank accords well with the climate laws.The anomalous cyclone before the trough of easterly waves affects only the position of the northern ridge,while the anomalous anticyclonic circulation behind the trough of easterly waves is favorable to the development and maintenance of the southern ridge,therefore,the subtropical high is anomalously in the south when this type of double-ridges processes come to end.It can be seen after further analysis that the interaction between the easterly waves and West Pacific subtropical high changes the distribution of vertical motion in the subtropical high regions.On one hand,it changes the distribution of meridional wind,thus the geostrophic vortivity develops in the ridge region on the south of the subtropical high at 500 hPa.On the other hand,it causes inhomogeneity of the vertical distribution of diabetic heating,triggering anomalous cyclonic circulation between two ridges and anticyclonic circulation in the ridge region on the south.Therefore,the interaction between the easterly waves and West Pacific subtropical high may result in discontinuous retreat of the subtropical high to the south,which has ominous significance for the prediction of subtropical high.
Key Technologies and Applications of Internet of Things
物联网关键技术与应用
LIU Qiang,CUI Li,CHEN Hai-ming,<br>刘强,崔莉,陈海明
计算机科学 , 2010,
Abstract: The Internet of things (IoT) has been paid more and more attention by the government, academe and industry all over the world. This paper introduced the concept of IoT, the basic characteristics and attributes. It also described the system structure, development phases and the future trend. The key technologies of Io T were discussed taking the wireless sensor network as an example. The application of IoT was illustrated by its typical use in environment monitoring.
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