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Controlling Three-Dimensional Electron-Electron Correlation via Elliptically Polarized Intense Laser Field
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作者 Jian-Xing Hao Xiao-Lei Hao +2 位作者 Wei-Dong Li Shi-Lin Hu Jing Chen 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第4期30-34,共5页
The three-dimensional electron-electron correlation in an elliptically polarized laser field is investigated based on a semiclassical model. Asymmetry parameter α of the correlated electron momentum distribution is u... The three-dimensional electron-electron correlation in an elliptically polarized laser field is investigated based on a semiclassical model. Asymmetry parameter α of the correlated electron momentum distribution is used to quantitatively describe the electron-electron correlation. The dependence of α on elliptieity e is totally different in three directions. For the z direction (maJor polarization direction), α first increases and reaches a maximum at ε = 0.275, then it decreases quickly. For the y direction in which the laser field is always absent, the ellipticity has a minor effect, and the asymmetry parameter fluctuates around α = -0.15. However, for the x direction (minor polarization direction), α increases monotonously with ellipticity though starts from the same value as in the y direction when ε = 0. The behavior of α in the x direction actually indicates a transformation from the Coulomb interaction dominated correlation to the laser field dominated correlation. Therefore, our work provides an efficient way to control the three-dimensional electron electron correlation via an elliptically polarized intense laser field. 展开更多
关键词 controlling Three-Dimensional Electron-Electron Correlation via Elliptically Polarized Intense Laser Field RII
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Response characteristics of sonar receiver under intense sound pulse 被引量:1
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作者 Kaizhuo Lei Qunfei Zhang Ziliang Qiao Lingling Zhang Qiang Huang Shiqing Wang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2012年第6期843-848,共6页
For anti-jamming and anti-countermeasure techniques of the sonar receiver, the response characteristics of the automatic gain control (AGC) circuit and the survivability of the prime circuit under strong interferenc... For anti-jamming and anti-countermeasure techniques of the sonar receiver, the response characteristics of the automatic gain control (AGC) circuit and the survivability of the prime circuit under strong interference are analyzed by simulations and experiments. An AGC simulation model based on the voltage control amplifier VCA810 prototype is proposed. Then static and dynamic simulations are realized with single frequency signal and linear frequency modulated (LFM) signal commonly used in the active sonar. Based on intense sound pulse (ISP) interference experiments, the real-time response characteristics of each module of the receiver are studied to verify the correctness of the model as well as the simulation results. Simulation and experiment results show that, under 252 dB/20 μs ISP interference, the specific sonar receiver will produce sustained cut top oscillation above 30 ms, which may affect the receiver and block the regular sonar signal. 展开更多
关键词 sonar receiver response characteristic simulationand experiment strong interference intense sound pulse (ISP) automatic gain control (AGC).
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Intelligent Controller of Digital High Intensity Discharge Lamp
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《Beijing Review》 2006年第44期53-53,共1页
High-intensity discharge (HID) lamps include these types of electrical lamps: mercury vapor, metal halide (also HQI), high-pressure sodium, low-pressure sodium and less commonly, xenon short-arc lamps. The light-produ... High-intensity discharge (HID) lamps include these types of electrical lamps: mercury vapor, metal halide (also HQI), high-pressure sodium, low-pressure sodium and less commonly, xenon short-arc lamps. The light-producing element of these lamp types is a well-stabilized arc discharge contained within a refractory envelope (arc tube) with wall loading in excess of 3 W/cm (19.4 W/in.). Compared to fluorescent and incandescent lamps, HID lamps produce a much larger quantity of light in a relatively small package. With tests made by the National Quality Supervision 展开更多
关键词 Intelligent controller of Digital High intensity Discharge Lamp HID
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Intelligent Controller of Digital High Intensity Discharge Lamp
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《Beijing Review》 2008年第52期21-21,共1页
High intensity discharge (HID) lamps include these types of electrical lamps: mercury vapor, metal halide (also hydraulic quantity indicator),
关键词 HID Intelligent controller of Digital High intensity Discharge Lamp
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Comparison of Space Glucose Control and Routine Glucose Management Protocol for Glycemic Control in Critically Ⅲ Patients: A Prospective, Randomized Clinical Study 被引量:4
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作者 Biao Xu Wei Jiang +4 位作者 Chun-Yao Wang Li Weng Xiao-Yun Hu Jin-Min Peng Bin Du 《Chinese Medical Journal》 SCIE CAS CSCD 2017年第17期2041-2049,共9页
Background:The Space Glucose Control (SGC) system is a computer-assisted device combining infusion pumps with the enhanced Model Predictive Control algorithm to achieve the target blood glucose (BG) level safely.... Background:The Space Glucose Control (SGC) system is a computer-assisted device combining infusion pumps with the enhanced Model Predictive Control algorithm to achieve the target blood glucose (BG) level safely.The objective of this study was to evaluate the efficacy and safety of glycemic control by SGC with customized BG target range of 5.8-8.9 mmol/L in the critically ill patients.Methods:It is a randomized controlled trial of seventy critically ill patients with mechanical ventilation and hyperglycemia (BG 〉 9.0 mmol/L).Thirty-six patients in the SGC group and 34 in the routine glucose management group were observed for three consecutive days.Target BG for both groups was 5.8-8.9 mmol/L.The primary outcome was the percentage time in the target range.Results:The percentage time within BG target range in the SGC group (69 &#177; 15%) was significantly higher than in the routine management group (52 &#177; 24%;P 〈 0.01).No measurement was 〈2.2 mmol/L,and there was only one episode of hypoglycemia (2.3-3.3 mmol/L) in each group.The average BG was significantly lower in the SGC group (7.8 &#177; 0.7 mmol/L) than in the routine management group (9.1 &#177; 1.6 mmol/L,P 〈 0.001).Target BG level was reached earlier in the SGC group than routine management group (2.5 &#177; 2.9 vs.12.1 &#177; 15.3 h,P =0.001).However,the SGC group performed worse for daily insulin requirement (59.8 &#177; 39.3 vs.28.4 &#177; 36.7 U,P =0.001)and sampling interval (2.0 &#177; 0.5 vs.3.7 &#177; 0.5 h,P 〈 0.001) than the routine management group did.Multiple linear regression showed that the intervention group remained a significant individual predictor (P 〈 0.001) of the percentage time in target range.Conclusions:The SGC system,with a BG target of 5.8-8.9 mmol/L,resulted in effective and reliable glycemic control with few hypoglycemic episodes in critically ill patients with mechanical ventilation and hyperglycemia.However,the workload was increased.Trial Registration:http://www.clinicaltrials.gov,NCT 02491346;https://www.clinicaltrials.gov/ct2/show/NCT02491346?term=NCT0 2491346&amp;cond=Hyperglycemia&amp;cntry1=ES%3ACN&amp;rank=1. 展开更多
关键词 Critical Illness: Glucose control in Intensive Care HYPERGLYCEMIA Space Glucose control Enhanced Model Predictive control
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