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Impact factors and improvement measures of enviroment quality in cleaning operating room
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作者 陈小娣 《外科研究与新技术》 2011年第4期266-266,共1页
Objective To analyze the factors that impact the environment quality of cleaning operating room and to discuss improvement measurement. Methods Environment bacteria testing results and prevalence of surgical incision ... Objective To analyze the factors that impact the environment quality of cleaning operating room and to discuss improvement measurement. Methods Environment bacteria testing results and prevalence of surgical incision infection in cleaning operating room were retro- 展开更多
关键词 Impact factors and improvement measures of enviroment quality in cleaning operating room
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MATHEMATICAL MODEL OF SELF-REPAIRING FLIGHT CONTROL 被引量:2
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作者 王永 詹训慧 +1 位作者 吴刚 胡寿松 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2003年第2期178-183,共6页
The most prospective method for certain structural failures and damages that cannot employ redundancy is self-repairing techniques, to ensure especially the maximum flight safety. Based on the characters of self-repai... The most prospective method for certain structural failures and damages that cannot employ redundancy is self-repairing techniques, to ensure especially the maximum flight safety. Based on the characters of self-repairing aircraft, this paper states some basic assumptions of the self-repairing aircraft, and puts forward some special new conceptions concerning the self-repairing aircraft: control input, operating input, command input, repair input and operating and control factor as well as their relationships. Thus it provides a simple and reliable mathematical model structure for the research on the self-repairing control of the aircraft. 展开更多
关键词 SELF-REPAIRING flight control mathematical model operating and control factor
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An algorithm and its application for obtaining some kind of infinite-dimensional Hamiltonian canonical formulation 被引量:6
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作者 任文秀 阿拉坦仓 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第11期3154-3160,共7页
Using factorization viewpoint of differential operator, this paper discusses how to transform a nonlinear evolution equation to infinite-dimensional Hamiltonian linear canonical formulation. It proves a sufficient con... Using factorization viewpoint of differential operator, this paper discusses how to transform a nonlinear evolution equation to infinite-dimensional Hamiltonian linear canonical formulation. It proves a sufficient condition of canonical factorization of operator, and provides a kind of mechanical algebraic method to achieve canonical 'σ/σx'-type expression, correspondingly. Then three examples are given, which show the application of the obtained algorithm. Thus a novel idea for inverse problem can be derived feasibly. 展开更多
关键词 nonlinear evolution equation infinite-dimensional Hamiltonian canonical system factorization of differential operator COMMUTATOR
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Operator-Based Robust Nonlinear Control for SISO and MIMO Nonlinear Systems With PI Hysteresis 被引量:3
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作者 Shuhui Bi Lei Wang +1 位作者 Shengjun Wen Mingcong Deng 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2018年第2期523-530,共8页
In this paper, operator based robust nonlinear control for single-input single-output(SISO) and multi-input multi-output(MIMO) nonlinear uncertain systems preceded by generalized Prandtl-Ishlinskii(PI) hysteresis is c... In this paper, operator based robust nonlinear control for single-input single-output(SISO) and multi-input multi-output(MIMO) nonlinear uncertain systems preceded by generalized Prandtl-Ishlinskii(PI) hysteresis is considered respectively. In detail, by using operator based robust right coprime factorization approach, the control system design structures including feedforward and feedback controllers for both SISO and MIMO nonlinear uncertain systems are given, respectively.In which, the controller design includes the information of PI hysteresis and its inverse, and some sufficient conditions for the controllers in both SISO and MIMO systems should be satisfied are also derived respectively. Based on the proposed conditions, influence from hysteresis is rejected, the systems are robustly stable and output tracking performance can be realized.Finally, the effectiveness of the proposed method is confirmed by numerical simulations. 展开更多
关键词 Index Terms-Generalized PI hysteresis operator based robustright coprime factorization robust nonlinear control.
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EFFECTS OF COMPOUND ACUPUNCTURE AND MEDICINE ANESTHESIA ON TNF AND INF-Γ CONTENTS IN THE PATIENT OF PNEUMONECTOMY
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作者 周红 童稳圃 +2 位作者 朱余明 施伶俐 闵屹华 《World Journal of Acupuncture-Moxibustion》 2006年第4期13-18,共6页
Objective To explore effects of acupuncture on senJm tumor necrosis factor (TNF) and ,γ-inter- feron (INF-γ) contents in the operative patient of lung cancer. Methods In the first stage, electroacupuncture (EA... Objective To explore effects of acupuncture on senJm tumor necrosis factor (TNF) and ,γ-inter- feron (INF-γ) contents in the operative patient of lung cancer. Methods In the first stage, electroacupuncture (EA) stimulation was given to 25 cases of lung cancer before operation, once daily for 3 consecutive days, with continuous EA stimulation during operation; EA was given once each day from the 5^th-7^th days after operation. In the second stage, EA was added from the 8^th- 10^th days after operation in 30 cases, once daily. Serum TNF and INF-γ contents were compared before and after operation. Results Serum TNF content on the 8th day after operation in the first stage study was lower (P〈0.05) and on the 12th day after operation in the second stage study was higher (P〈0.05) in the compound anesthesia group than that in the general anesthesia group; serum INF-γ contents in the compound anesthesia group on the 8^th day after operation in the first stage and on the 12^th day after operation in the second stage were significantly higher than those in the general anesthesia group (P〈0.01, P〈0.05). Conclusion Acupuncture can regulate serum TNF and INF-γ contents in the patient of operation of lung cancer, with dual-directional regulation on immunologic function. 展开更多
关键词 Acupuncture Compound acupuncture and medicine anesthesia Operation of lung cancerTumor necrosis factor Type interferon
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Barut–Girardello Coherent States for Nonlinear Oscillator with Position-Dependent Mass 被引量:1
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作者 Naila Amir Shahid Iqbal 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第7期41-48,共8页
Using ladder operators for the non-linear oscillator with position-dependent effective mass, realization of the dynamic group SU(1,1) is presented. Keeping in view the algebraic structure of the non-linear oscillator,... Using ladder operators for the non-linear oscillator with position-dependent effective mass, realization of the dynamic group SU(1,1) is presented. Keeping in view the algebraic structure of the non-linear oscillator, coherent states are constructed using Barut–Girardello formalism and their basic properties are discussed. Furthermore, the statistical properties of these states are investigated by means of Mandel parameter and second order correlation function. Moreover,it is shown that in the harmonic limit, all the results obtained for the non-linear oscillator with spatially varying mass reduce to corresponding results of the linear oscillator with constant mass. 展开更多
关键词 position-dependent mass nonlinear oscillator Schdinger factorization Ladder operators su(1 1) algebra Barut–Girardello coherent states sub-poissonian statistics
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Analysis of aerobic granular sludge formation based on grey system theory
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作者 Cuiya Zhang Hanmin Zhang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2013年第4期710-716,共7页
Based on grey entropy analysis, the relational grade of operational parameters with aerobic granular sludge's granulation indicators was studied. The former consisted of settling time (ST), aeration time (AT), su... Based on grey entropy analysis, the relational grade of operational parameters with aerobic granular sludge's granulation indicators was studied. The former consisted of settling time (ST), aeration time (AT), superficial gas velocity (SGV), height/diameter (H/D) ratio and organic loading rates (OLR), the latter included sludge volume index (SVI) and set-up time. The calculated result showed that for SVI and set-up time, the influence orders and the corresponding grey entropy relational grades (GERG) were: SGV (0.9935) 〉 AT (0.9921) 〉 OLR (0.9894) 〉 ST (0.9876) 〉 H/D (0.9857) and SGV (0.9928) 〉 H/D (0.9914) 〉 AT (0.9909) 〉 OLR (0.9897) 〉 ST (0.9878). The chosen parameters were all key impact factors as each GERG was larger than 0.98. SGV played an important role in improving SVI transformation and facilitating the set-up process. The influence of ST on SVI and set-up time was relatively low due to its dual functions. SVI transformation and rapid set-up demanded different optimal I-I/D ratio scopes (10-20 and 16-20). Meanwhile, different functions could be obtained through adjusting certain factors' scope. 展开更多
关键词 aerobic granular sludge grey system theory operational impact factor granulation process
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QCD factorization semi-inclusive deep inelastic scattering diffractive deep inelastic scattering
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作者 周高亮 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第2期204-212,共9页
The operator level proof of factorization theorem exhibited in [ar Xiv:hep-ph/1307.4194] is extended to the semi-inclusive deep inelastic scattering process(SIDIS). Factorization theorem can be proved at operator l... The operator level proof of factorization theorem exhibited in [ar Xiv:hep-ph/1307.4194] is extended to the semi-inclusive deep inelastic scattering process(SIDIS). Factorization theorem can be proved at operator level if there are not detected soft hadrons. The key point is that the initial one-nucleon state is the eigenstate of QCD. 展开更多
关键词 QCD Factorization of Semi-Inclusive DIS Process at Operator Level
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QCD factorization Drell–Yan process
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作者 周高亮 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第2期193-203,共11页
An alternative proof of factorization theorem for Drell–Yan process that works at operator level is presented in this paper. Contributions of interactions after the hard collision for such inclusive processes are pro... An alternative proof of factorization theorem for Drell–Yan process that works at operator level is presented in this paper. Contributions of interactions after the hard collision for such inclusive processes are proved to be canceled at operator level according to the unitarity of time evolution operator. After this cancellation, there are no longer leading pinch singular surface in Glauber region in the time evolution of electromagnetic currents. Effects of soft gluons are absorbed into Wilson lines of scalar-polarized gluons. Cancelation of soft gluons is attribute to unitarity of time evolution operator and such Wilson lines. 展开更多
关键词 A Proof of Factorization Theorem of Drell–Yan Process at Operator Level
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