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Search Results: 1 - 10 of 131596 matches for " Li Hou "
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Entropy, Free Radical and Life System  [PDF]
Honghu Li, Junhua Hou
Open Journal of Biophysics (OJBIPHY) , 2016, DOI: 10.4236/ojbiphy.2016.64009
Abstract: Effects of entropy and free radical in life system are elucidated. The results indicate that living organism can maintain normal activities only if a suitable free radicals inside living organism can be guaranteed. Excessive free radical should be eliminated to reduce entropy in living organism. Some ways provided to eliminate excessive free radical, reduce entropy and keep health.
Applications of High-Efficiency Abrasive Process with CBN Grinding Wheel  [PDF]
Yali Hou, Changhe Li, Yan Zhou
Engineering (ENG) , 2010, DOI: 10.4236/eng.2010.23026
Abstract: High-efficiency abrasive process with CBN grinding wheel is one of the important techniques of advanced manufacture. Combined with raw and finishing machining, it can attain high material removal rate like turning, milling and planning. The difficult-to-grinding materials can also be ground by means of this method with high performance. In the present paper, development status and latest progresses on high-efficiency abrasive machining technologies with CBN grinding wheel relate to high speed and super-high speed grinding, quick point-grinding, high efficiency deep-cut grinding, creep feed deep grinding, heavy-duty snagging and abrasive belt grinding were summarized. The efficiency and parameters range of these abrasive machining processes were compared. The key technologies of high efficiency abrasive machining, including grinding wheel, spindle and bearing, grinder, coolant supplying, installation and orientation of wheel and workpiece and safety defended, as well as intelligent monitor and NC grinding were investigated. It is concluded that high efficiency abrasive machining is a promising technology in the future.
Effective Mass of Acoustic Polaron in Quantum Dots  [PDF]
Hao Li, Junhua Hou, Xiaofeng Duan
World Journal of Condensed Matter Physics (WJCMP) , 2015, DOI: 10.4236/wjcmp.2015.51005
Abstract: The variational effective mass with respect to the e-p coupling constant for different values of cutoff wave vector is performed in quantum dot. The self-trapping transition of acoustic polaron in quantum dot is reconsidered by character of the effective mass curve varying with the e-p coupling. The holes are determined to be self-trapped in AlN quantum dot systems.
Analysis on Bilingual Public Signs in the View of Audience Theory—A Case Study of City Traffic Public Signs in Xi’an  [PDF]
Wenmin Li, Xue Wang, Shihan Hou
Open Journal of Modern Linguistics (OJML) , 2015, DOI: 10.4236/ojml.2015.52014
Abstract: This paper, with the audience theory as its theoretical guide and by taking a case study on Bilingual traffic Public Signs in Xi’an, especially on bilingual station names of Xi’an Metro Line 2, first briefly discusses how an important role city traffic public signs play in serving the audience, facilitating tourism as well as disseminating Chinese culture through the international audience. Second, it analyzes the problems existing in the present bilingual public signs in China and the counter-productive effects they are likely to bring about. And finally proposal for a new system of bilingual station names of Xi’an Metro Line 2 is put forward, which, the author believes, will not only offer the exact information wanted but make the audience abroad feel at home.
Studies on the in Vitro Dissolution of Insoluble Volatile Drug from Su-Anxin Nasal Inhalant and Its Correlation on the Nose Steady Self-Controllable Expiration and Inspiration at Night  [PDF]
Xiaodong Li, Guoxiang Xie, Suyun Li, Chao Hou
Pharmacology & Pharmacy (PP) , 2011, DOI: 10.4236/pp.2011.22008
Abstract: In the paper, the in vitro dissolution of borneol in 12 hours from 6 batches of optimized inhalant samples were investigated. As a new dosage form, the in vitro release apparatus of nasal inhalant was invented and a pushing bump was used according to the simulation of the nose expiration and inspiration. Based on the data of r2 in the profile and similar factor f2 from 6 linear release tendencies, a good controlled release and a zero order tendency were observed. It can be suggested that there is a good correlation between the in vitro controlled release and the nose steady self-controllable expiration and inspiration, which will contribute to the trend of insoluble volatile drug controlled release and the effect of quick absorption in nasal pulmonary delivery to cure severe or acute cardiovascular or lung diseases at patients' sleeping, such as angina or breathing obstruction. Also, it was concluded that the prescription composed of insoluble volatile drugs can be prepared to be nasal inhalant from which drugs can be absorbed through nose steady self-controllable inspiration to the lung then into the blood and have a great effectiveness improvement of bioavailability at night timing drug delivery system.
Research on a High-Efficiency LED Driving Circuit Based on Buck Topology  [PDF]
Renbo Xu, Hongjian Li, Yongzhi Li, Xiaomao Hou
Circuits and Systems (CS) , 2011, DOI: 10.4236/cs.2011.24048
Abstract: A high efficiency LED(Light Emitting Diode) driver based on Buck converter, which could operate under a wide AC input voltage range(85V~265V) and drive a series of high power LEDs, is presented in this paper. The operation principles, power loss factors of the LED driver in this study are analyzed and discussed in detail and some effective ways to improve efficiency are proposed through system design considerations. To verify the feasibility, a laboratory prototype is also designed and tested for an LED lamp which consists of 16 LUMILEDS LEDs in series. Experimental results show that a high efficiency of 92% at I0=350mA can be achieved and the studied driver might be practical for driving high power LEDs. In the last, the overall efficiency over 90% is gained through some experiments under variable input and output voltages and verifies the validity of the designed driver.
1-(2,6-Dichlorobenzoyl)-3-(3-nitrophenyl)thiourea dimethylformamide solvate
Min Li,Dongxiao Hou
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536809055056
Abstract: In the title compound, C14H9Cl2N3O3S·C3H7NO, the two aromatic rings enclose a dihedral angle of 32.93 (12)°. The thiourea molecule exists in its thione form in the solid state with typical C=S and C—N bond lengths. In the crystal, N—H...O hydrogen bonds exist between the thiourea and carbonyl groups on the same and neighboring molecules. In addition, each dimethylformamide solvate molecule forms a hydrogen bond to one N atom of the thiourea group.
Modeling and Simulating of Uncertain Quality Abnormity Diagnosis
Shiwang Hou,Mengqun Li
Research Journal of Applied Sciences, Engineering and Technology , 2013,
Abstract: There is much fuzzy uncertain information during the diagnosis of quality abnormity. The effective utilization model of that can provide important decision-making support. In this study, we consider three main types of fuzzy production rules, which can be used in fuzzy quality abnormity diagnosis problem and their presentation models are constructed by use of Fuzzy Reasoning Petri Nets (FRPNs). Considering of the graphic representation and logic structure of FRPNs, we propose the method for simulating model using Matlab toolbox state flow. By establishing a corresponding relationship between FRPNs rules and state flow block diagram, three simulating models for the three corresponding FRPNs’ basic structure are developed. Finally, we give an application case of the proposed model. Taking place truth degree data of FRPNs as input, the diagnosis process and results can be shown dynamically in the state flow simulating model under Matlab environment. The result illustrated that the method proposed can give reliable information for process maintenance and abnormal causes’ location.
Linke Hou & Xiaowu Li
International Journal of Research and Reviews in Applied Sciences , 2010,
Effects of gluon damping rate on the viscosity coefficient of the quark-gluon plasma at finite chemical potential
Hou Defu,Li Jiarong
Physics , 1997, DOI: 10.1016/S0375-9474(97)00045-6
Abstract: By considering the Debye screening and damping rate of gluons, the viscosity coefficient of the quark-gluon plasma was evaluated via real-time finite temperature QCD in the relaxation time approximation at finite temperature and chemical potential . The results show that both the damping rate and the chemical potential cause considerable enhancements to the viscosity coefficient of hot dense quark-gluon plasma.
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