TN247 2001010114法布里-珀罗腔对相位噪声测量的影响=Phasenoise measurement by F-P cavity[刊,中]/张云,张天才,李廷鱼,谢常德(山西大学光电研究所.山西,太原(030006))∥光学学报.-2000,20(4).-465-471从理论上讨论了通过法布里-珀...TN247 2001010114法布里-珀罗腔对相位噪声测量的影响=Phasenoise measurement by F-P cavity[刊,中]/张云,张天才,李廷鱼,谢常德(山西大学光电研究所.山西,太原(030006))∥光学学报.-2000,20(4).-465-471从理论上讨论了通过法布里-珀罗腔将输入场的相位噪声转换为强噪声的过程,分析了腔参数对输入场相位噪声测量的影响,并对自由运转时单模量子阱激光器相位噪声进行了测量。图7参9(严寒)TN247 2001010215激光功率检测自动化装置研制=Development of anautomatic laser power measurement展开更多
Pulsed electric field is an innovative method for non-thermal food processing. The effects of pulsed electric field on cell disintegration and mass transfer in sugar beet were studied. Sugar beet slices were treated b...Pulsed electric field is an innovative method for non-thermal food processing. The effects of pulsed electric field on cell disintegration and mass transfer in sugar beet were studied. Sugar beet slices were treated by various Field strengths （0.5-6 kV cm^-1）, capacity of capacitors （0.5, 8 and 32 μF） and pulse numbers （1-100 pulses）. The cell disintegration index and energy input for each treated sample was evaluated. The results showed that the cell membrane of PEF （Pulsed Electric Field） treated samples using 2 kV cm^-1, 8 μF after 20 pulses, and 3 kV cm1, 8 μF after 10 pulses were rapidly disintegrated in less than 1 min. Most important parameters during cell permeabilization were the total energy input followed by field strength. Energy efficiency index was defined as cell disintegration index per energy input unit. The maximum efficiency index was achieved using 2 kV cm^-1, 8 μF after 5 pulses. Comparison between PEF pretreatment and thermal method showed that large amount of sugar may be extracted after PEF pretreatment using field strength of 2 Kv cm^-1, 8μF in less than 10 min at ambient temperature. In.addition, the consumed energy for thermal treatment was approximately 20 to 50 times more than PEF pretreatment. Optimizing the field conditions in PEF treatment is an important factor to achieve high amount of sugar extraction from sugar beet.展开更多
Global financial crisis and subsequent protectionist measures of US government motivated Indian government to look for opportunities towards ASEAN nations through ＂Look East Policy.＂ While scouting for opportunities...Global financial crisis and subsequent protectionist measures of US government motivated Indian government to look for opportunities towards ASEAN nations through ＂Look East Policy.＂ While scouting for opportunities, it was found that Indonesian air services market is buoyant and promising where Indonesia has recently liberalized its open sky policies for inviting domestic as well as foreign investment. Time is appropriate for Indian government to negotiate on how India can participate in Indonesian domestic market and provide air services to its consumers. The paper tries to analyze how Indian private domestic airlines can enter into the markets of Indonesia and whether they would be able to provide such services. It further tries to examine that certain value addition services in terms of auxiliary air services are currently required for Indonesia. To that extent, how is India going to capitalize such opportunities by providing such competitive value addition services？ Indonesia is currently witnessing frequent air accidents and making safety as a major concern for consumers. It tries to argue whether India can provide technical and other support services to reduce such hazards. The research methodology includes Input-Output Table calculating using WIOD （World Input Output Database） database. National Input-Output Table for analyzing Indonesian air services was also consulted for authors＇ own calculations展开更多
One of the problems encountered in the operation of a leachate treatment in a landfill is the quantity of the fluctuating leachate. Therefore, information on the precise prediction about the quantity of leachate produ...One of the problems encountered in the operation of a leachate treatment in a landfill is the quantity of the fluctuating leachate. Therefore, information on the precise prediction about the quantity of leachate produced in a landfill is required. This information can be obtained by using an ANN （artificial neural networks） model. In this study, a prediction on a leachate generation for a period of 15 days was made. The input for the ANN model consists of data such as rainfall, temperature, humidity, duration of solar radiation, and the landfill characteristics, while the output is the leachate landfills production in Minamiashigara, Japan. The ANN algorithm uses a BP （back propagation） with LM （Levenberg-Marquadrt） training type. By using the input-output data pairs, the training of ANN model was conducted in order to obtain the values of the weights that describe the relationship between the input-output data. Furthermore, with the trained ANN model, the prediction of leachate generation for a period of 15 days was made. The study result shows that the prediction accuracy ofleachate generation of ANN-C model, with a correlation coefficient （r） of 0.924, is quite good. Thus, the prediction of leachate generation using artificial neural network model can be recommended for predicting leachate generation in the future. In this study, a prediction on a leachate generation for a period of 15 days was made. The quantity of leachate generation in a landfill can be obtained by using ANN for future periods. By entering data for future periods （t ＋1） in ANN models, the leachate generation for the period （t ＋1） can be predicted.展开更多
By analyzing theoretical scheme of quantum controlling through photon addition,we propose a new optical field whose density operator asρ=λ(1-λ)l:Ll(-λ2aa/1-λ)e-λaa:(here::denotes normal ordering symbol),which is...By analyzing theoretical scheme of quantum controlling through photon addition,we propose a new optical field whose density operator asρ=λ(1-λ)l:Ll(-λ2aa/1-λ)e-λaa:(here::denotes normal ordering symbol),which is named Laguerre-polynomialweighted chaotic state.We show that such state is the solution to the master equation d/dtρ=-κ(aaρ+ρaa-aρa-aρa),describing a diffusion channel,with the initial number state|l l|,andλ=1/(1+κt).This new state is characteristic of possessing photon number l+κt at time t,so the photon number by adjusting the diffusion parameterκcan be controlled.This master equation is solved using the summation method within ordered product of operators and the entangled state representation.The physical difference between the diffusion and the amplitude damping is noted.展开更多
Abstract Magnetic resonance electrical impedance tomography （MREIT, for short） is a new medical imaging technique developed recently to visualize the cross-section conduc- tivity of biologic tissues. A new MREIT ima...Abstract Magnetic resonance electrical impedance tomography （MREIT, for short） is a new medical imaging technique developed recently to visualize the cross-section conduc- tivity of biologic tissues. A new MREIT image reconstruction method called harmonic Bz algorithm was proposed in 2002 with the measurement of Bz that is a single component of an induced magnetic flux density subject to an injection current. The key idea is to solve a nonlinear integral equation by some iteration process. This paper deals with the convergence analysis as well as the error estimate for noisy input data Bz, which is the practical situation for MREIT. By analyzing the iteration process containing the Laplacian operation on the input magnetic field rigorously, the authors give the error estimate for the iterative solution in terms of the noisy level 6 and the regularizing scheme for determining ABz approximately from the noisy input data. The regularizing scheme for computing the Laplacian from noisy input data is proposed with error analysis. Our results provide both the theoretical basis and the implementable scheme for evaluating the reconstruction accuracy using harmonic Bz algorithm with practical measurement data containing noise.展开更多
文摘TN247 2001010114法布里-珀罗腔对相位噪声测量的影响=Phasenoise measurement by F-P cavity[刊,中]/张云,张天才,李廷鱼,谢常德(山西大学光电研究所.山西,太原(030006))∥光学学报.-2000,20(4).-465-471从理论上讨论了通过法布里-珀罗腔将输入场的相位噪声转换为强噪声的过程,分析了腔参数对输入场相位噪声测量的影响,并对自由运转时单模量子阱激光器相位噪声进行了测量。图7参9(严寒)TN247 2001010215激光功率检测自动化装置研制=Development of anautomatic laser power measurement
文摘Pulsed electric field is an innovative method for non-thermal food processing. The effects of pulsed electric field on cell disintegration and mass transfer in sugar beet were studied. Sugar beet slices were treated by various Field strengths （0.5-6 kV cm^-1）, capacity of capacitors （0.5, 8 and 32 μF） and pulse numbers （1-100 pulses）. The cell disintegration index and energy input for each treated sample was evaluated. The results showed that the cell membrane of PEF （Pulsed Electric Field） treated samples using 2 kV cm^-1, 8 μF after 20 pulses, and 3 kV cm1, 8 μF after 10 pulses were rapidly disintegrated in less than 1 min. Most important parameters during cell permeabilization were the total energy input followed by field strength. Energy efficiency index was defined as cell disintegration index per energy input unit. The maximum efficiency index was achieved using 2 kV cm^-1, 8 μF after 5 pulses. Comparison between PEF pretreatment and thermal method showed that large amount of sugar may be extracted after PEF pretreatment using field strength of 2 Kv cm^-1, 8μF in less than 10 min at ambient temperature. In.addition, the consumed energy for thermal treatment was approximately 20 to 50 times more than PEF pretreatment. Optimizing the field conditions in PEF treatment is an important factor to achieve high amount of sugar extraction from sugar beet.
文摘Global financial crisis and subsequent protectionist measures of US government motivated Indian government to look for opportunities towards ASEAN nations through ＂Look East Policy.＂ While scouting for opportunities, it was found that Indonesian air services market is buoyant and promising where Indonesia has recently liberalized its open sky policies for inviting domestic as well as foreign investment. Time is appropriate for Indian government to negotiate on how India can participate in Indonesian domestic market and provide air services to its consumers. The paper tries to analyze how Indian private domestic airlines can enter into the markets of Indonesia and whether they would be able to provide such services. It further tries to examine that certain value addition services in terms of auxiliary air services are currently required for Indonesia. To that extent, how is India going to capitalize such opportunities by providing such competitive value addition services？ Indonesia is currently witnessing frequent air accidents and making safety as a major concern for consumers. It tries to argue whether India can provide technical and other support services to reduce such hazards. The research methodology includes Input-Output Table calculating using WIOD （World Input Output Database） database. National Input-Output Table for analyzing Indonesian air services was also consulted for authors＇ own calculations
文摘One of the problems encountered in the operation of a leachate treatment in a landfill is the quantity of the fluctuating leachate. Therefore, information on the precise prediction about the quantity of leachate produced in a landfill is required. This information can be obtained by using an ANN （artificial neural networks） model. In this study, a prediction on a leachate generation for a period of 15 days was made. The input for the ANN model consists of data such as rainfall, temperature, humidity, duration of solar radiation, and the landfill characteristics, while the output is the leachate landfills production in Minamiashigara, Japan. The ANN algorithm uses a BP （back propagation） with LM （Levenberg-Marquadrt） training type. By using the input-output data pairs, the training of ANN model was conducted in order to obtain the values of the weights that describe the relationship between the input-output data. Furthermore, with the trained ANN model, the prediction of leachate generation for a period of 15 days was made. The study result shows that the prediction accuracy ofleachate generation of ANN-C model, with a correlation coefficient （r） of 0.924, is quite good. Thus, the prediction of leachate generation using artificial neural network model can be recommended for predicting leachate generation in the future. In this study, a prediction on a leachate generation for a period of 15 days was made. The quantity of leachate generation in a landfill can be obtained by using ANN for future periods. By entering data for future periods （t ＋1） in ANN models, the leachate generation for the period （t ＋1） can be predicted.
基金supported by the National Natural Science Foundation of China(Grant Nos.11175113 and 11264018)the Natural Science Foundation of Jiangxi Province of China(Grant No 20132BAB212006)
文摘By analyzing theoretical scheme of quantum controlling through photon addition,we propose a new optical field whose density operator asρ=λ(1-λ)l:Ll(-λ2aa/1-λ)e-λaa:(here::denotes normal ordering symbol),which is named Laguerre-polynomialweighted chaotic state.We show that such state is the solution to the master equation d/dtρ=-κ(aaρ+ρaa-aρa-aρa),describing a diffusion channel,with the initial number state|l l|,andλ=1/(1+κt).This new state is characteristic of possessing photon number l+κt at time t,so the photon number by adjusting the diffusion parameterκcan be controlled.This master equation is solved using the summation method within ordered product of operators and the entangled state representation.The physical difference between the diffusion and the amplitude damping is noted.
基金supported by the National Natural Science Foundation of China(No.91330109)the Research Found for the Doctoral Program of Higher Education of China(No.20110092110018)
文摘Abstract Magnetic resonance electrical impedance tomography （MREIT, for short） is a new medical imaging technique developed recently to visualize the cross-section conduc- tivity of biologic tissues. A new MREIT image reconstruction method called harmonic Bz algorithm was proposed in 2002 with the measurement of Bz that is a single component of an induced magnetic flux density subject to an injection current. The key idea is to solve a nonlinear integral equation by some iteration process. This paper deals with the convergence analysis as well as the error estimate for noisy input data Bz, which is the practical situation for MREIT. By analyzing the iteration process containing the Laplacian operation on the input magnetic field rigorously, the authors give the error estimate for the iterative solution in terms of the noisy level 6 and the regularizing scheme for determining ABz approximately from the noisy input data. The regularizing scheme for computing the Laplacian from noisy input data is proposed with error analysis. Our results provide both the theoretical basis and the implementable scheme for evaluating the reconstruction accuracy using harmonic Bz algorithm with practical measurement data containing noise.
