2013 Vol. 28, No. 5
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2013, 28(5)
:1-4.
doi: 10.3969/j.issn.2095-476X.2013.05.001
Abstract:
The morus alba polysaccharide viscosity were measured using Brookfield viscometer, the effect of temperature, shear rate and pH value on the viscosity of morus alba polysaccharide were investigated. The results showed that morus alba polysaccharide solution was a pseudoplastic fluid, as the temperature increase the viscosity decreased gradually, and the relationship between temperature and viscosity was in line with Arrhenius model. The available mathematical model of temperature and concentration on the comprehensive effect of morus alba polysaccharides solution viscosity could predict by using η=-5.924 5exp(2.48/RT-0.1238C+3.421×10-4C2), the scope of application was temperature 20~80℃, concentration 1%~8%; the effects of shear rate on viscosity could be fitting by Power law model η=Mγn, viscosity decreased with increasing shear rate; The morus alba polysaccharide was a neutral polysaccharide when viscosity decreased under overly acid or alkali and the highest viscosity under neutral condition.
The morus alba polysaccharide viscosity were measured using Brookfield viscometer, the effect of temperature, shear rate and pH value on the viscosity of morus alba polysaccharide were investigated. The results showed that morus alba polysaccharide solution was a pseudoplastic fluid, as the temperature increase the viscosity decreased gradually, and the relationship between temperature and viscosity was in line with Arrhenius model. The available mathematical model of temperature and concentration on the comprehensive effect of morus alba polysaccharides solution viscosity could predict by using η=-5.924 5exp(2.48/RT-0.1238C+3.421×10-4C2), the scope of application was temperature 20~80℃, concentration 1%~8%; the effects of shear rate on viscosity could be fitting by Power law model η=Mγn, viscosity decreased with increasing shear rate; The morus alba polysaccharide was a neutral polysaccharide when viscosity decreased under overly acid or alkali and the highest viscosity under neutral condition.
2013, 28(5)
:5-10.
doi: 10.3969/j.issn.2095-476X.2013.05.002
Abstract:
The process formula of wholemeal bread by mixing black-grained whole-wheat flour with bread flour was studied. Using specific volume of bread, sensory quality scores as evaluation indexes, the effect of black-grained whole-wheat flour, water, yeast, sugar proportion on the quality of bread were investigated by single-factor experiments, and the process formula was optimized by response surface analysis(RSA). The optimum formula was as follows: 23% black-grained wholemeal flour, 52% water, 1.3% yeast and 21% sugar. The bread made at the optimum conditions exhibited the specific volume of 5.21 cm3/g and sensory quality score of 85.37. Compared with the ordinary bread, the wholemeal bread had good taste and soft texture with reduced staling rate and prolonged shelf life and its appearance properties and inherent quality improved greatly.
The process formula of wholemeal bread by mixing black-grained whole-wheat flour with bread flour was studied. Using specific volume of bread, sensory quality scores as evaluation indexes, the effect of black-grained whole-wheat flour, water, yeast, sugar proportion on the quality of bread were investigated by single-factor experiments, and the process formula was optimized by response surface analysis(RSA). The optimum formula was as follows: 23% black-grained wholemeal flour, 52% water, 1.3% yeast and 21% sugar. The bread made at the optimum conditions exhibited the specific volume of 5.21 cm3/g and sensory quality score of 85.37. Compared with the ordinary bread, the wholemeal bread had good taste and soft texture with reduced staling rate and prolonged shelf life and its appearance properties and inherent quality improved greatly.
2013, 28(5)
:11-15.
doi: 10.3969/j.issn.2095-476X.2013.05.003
Abstract:
The fermentation medium and conditions for monascus pigment production by monascus were studied. The results showed that the optimal medium composition for producing monascus pigments was as follows: glucose 30 g/L, NaNO3 15 g/L, ZnSO4 0.05 g/L and MnSO4 0.05 g/L, medium initial pH=3, liquid volume 30 mL/250 mL, incubation time 120 h. Under these conditions, color value of monascus producing monascus pigment reached 16.91 U/mL.
The fermentation medium and conditions for monascus pigment production by monascus were studied. The results showed that the optimal medium composition for producing monascus pigments was as follows: glucose 30 g/L, NaNO3 15 g/L, ZnSO4 0.05 g/L and MnSO4 0.05 g/L, medium initial pH=3, liquid volume 30 mL/250 mL, incubation time 120 h. Under these conditions, color value of monascus producing monascus pigment reached 16.91 U/mL.
2013, 28(5)
:16-20.
doi: 10.3969/j.issn.2095-476X.2013.05.004
Abstract:
The effect of Acidithiobacillus ferrooxidans on copper recovery in wastes printed circuit boards(PCBs) was investigated. PCBs addition times and amounts adversely inhibited bacterial growth and thus lowered copper leaching capacity, therefore multiple point's addition strategy could improve leaching copper and reduce inhibition of cell growth. The results showed that when multiple PCBs additions 18 g/L(4 g/L at 48 h, 6 g/L at 96 h and 8 g/L at 144 h) were developed, copper extraction reached 80% after 240 h cultivation. The suggesting strategy of copper leaching from waste PCBs was feasible and effective.
The effect of Acidithiobacillus ferrooxidans on copper recovery in wastes printed circuit boards(PCBs) was investigated. PCBs addition times and amounts adversely inhibited bacterial growth and thus lowered copper leaching capacity, therefore multiple point's addition strategy could improve leaching copper and reduce inhibition of cell growth. The results showed that when multiple PCBs additions 18 g/L(4 g/L at 48 h, 6 g/L at 96 h and 8 g/L at 144 h) were developed, copper extraction reached 80% after 240 h cultivation. The suggesting strategy of copper leaching from waste PCBs was feasible and effective.
2013, 28(5)
:21-25.
doi: 10.3969/j.issn.2095-476X.2013.05.005
Abstract:
The pathogen was obtained by separating the cucumber bacterial wilt plant, and by comparing with the closely-related species 16Sr DNA sequence, it was identified as Erwinia tracheiphila and specific primers ET-P1/ET-P2 was designed. A 794 bp cucumber bacterial wilt special band can be amplified by optimizing the PCR amplification of ET-P1/ET-P2 primers with the detection sensitivity of 100 fg/μL, and can amplify the DNA of bacterial wilt cucumber and rhizosphere soil. The molecular diagnosis technology of cucumber bacterial wilt.
The pathogen was obtained by separating the cucumber bacterial wilt plant, and by comparing with the closely-related species 16Sr DNA sequence, it was identified as Erwinia tracheiphila and specific primers ET-P1/ET-P2 was designed. A 794 bp cucumber bacterial wilt special band can be amplified by optimizing the PCR amplification of ET-P1/ET-P2 primers with the detection sensitivity of 100 fg/μL, and can amplify the DNA of bacterial wilt cucumber and rhizosphere soil. The molecular diagnosis technology of cucumber bacterial wilt.
2013, 28(5)
:26-29.
doi: 10.3969/j.issn.2095-476X.2013.05.006
Abstract:
In order to study the influence of different leaf parts on robust flavor style flue-cured tobacco comprehensive quality, the main variety NC89 of Xiang county in He'nan province was chosen for the research, the conventional chemical ingredients and flavoring substances content of the whole leaves and different leaf parts were measured, and their sensory quality were evaluated respectively. The results showed that the conventional chemical ingredients and flavoring substances distribution of NC89 was uneven, the effect of different cutting location on the quality of aroma quality, aroma, concentration, aftertaste, strength and offensive odor was significant. Cut tobacco quality composite scores were as follows: tip 1/3(285.12) > leaves 1/3(274.48) > full blade(267.47) > leaf base 1/3(263.43).
In order to study the influence of different leaf parts on robust flavor style flue-cured tobacco comprehensive quality, the main variety NC89 of Xiang county in He'nan province was chosen for the research, the conventional chemical ingredients and flavoring substances content of the whole leaves and different leaf parts were measured, and their sensory quality were evaluated respectively. The results showed that the conventional chemical ingredients and flavoring substances distribution of NC89 was uneven, the effect of different cutting location on the quality of aroma quality, aroma, concentration, aftertaste, strength and offensive odor was significant. Cut tobacco quality composite scores were as follows: tip 1/3(285.12) > leaves 1/3(274.48) > full blade(267.47) > leaf base 1/3(263.43).
2013, 28(5)
:30-34.
doi: 10.3969/j.issn.2095-476X.2013.05.007
Abstract:
The content of non-volatile organic acids and total particulate matter(TPM) pH value of representational brands of domestic cigarette samples were measured and the mathematical analysis about the effect of organic acid on the mainstream smoke total particulate matter pH value was carried out. The results showed that the malic acid, n-pentadecanoic acid and oleic acid had significant influence on the pH of total particulate matter in cigarette smoke. In the 11 kinds of non-volatile organic acids, linoleic acid, oleic acid, malic acid, palmitic acid, oxalic acid and linolenic acid had a great influence on the pH of total particulate matter in cigarette smoke. In conclusion, malic acid and oleic acid exert a greater influence on the pH of total particulate matter in cigarette smoke.
The content of non-volatile organic acids and total particulate matter(TPM) pH value of representational brands of domestic cigarette samples were measured and the mathematical analysis about the effect of organic acid on the mainstream smoke total particulate matter pH value was carried out. The results showed that the malic acid, n-pentadecanoic acid and oleic acid had significant influence on the pH of total particulate matter in cigarette smoke. In the 11 kinds of non-volatile organic acids, linoleic acid, oleic acid, malic acid, palmitic acid, oxalic acid and linolenic acid had a great influence on the pH of total particulate matter in cigarette smoke. In conclusion, malic acid and oleic acid exert a greater influence on the pH of total particulate matter in cigarette smoke.
2013, 28(5)
:35-38.
doi: 10.3969/j.issn.2095-476X.2013.05.008
Abstract:
The effect of HXD pneumatic drying, CO2 expansion and different HXD expanded cut tobacco blending ratios on cigarette comprehensive quality was studied. The results showed that expanded cut tobacco with HXD pneumatic drying could increase whole cut rate and reduce small stands rate of the blends, cut tobacco structure and elasticity were better; In the test brands, sensory quality of cigarette with HXD expanded cut tobacco was better when blending ratios were the same; the optimum blending ratio of HXD expanded cut tobacco was 15%.
The effect of HXD pneumatic drying, CO2 expansion and different HXD expanded cut tobacco blending ratios on cigarette comprehensive quality was studied. The results showed that expanded cut tobacco with HXD pneumatic drying could increase whole cut rate and reduce small stands rate of the blends, cut tobacco structure and elasticity were better; In the test brands, sensory quality of cigarette with HXD expanded cut tobacco was better when blending ratios were the same; the optimum blending ratio of HXD expanded cut tobacco was 15%.
2013, 28(5)
:39-42,58.
doi: 10.3969/j.issn.2095-476X.2013.05.009
Abstract:
Using flue-cured tobacco varieties RG11 as raw materials, the influence of simple sequence repeat(SSR) amplification on flue-cured tobacco SSR analysis of polymerase chain reaction(PCR) system of the main ingredients and among was studied, and the results showed that flue-cured tobacco SSR-PCR for 20 μL system, including template DNA 35 ng, 1.5 U TaqDNA polymerase, 2.375 mmol/L MgCl2, 0.6 mmol/L dNTPs, 0.4 μmol/L primer.
Using flue-cured tobacco varieties RG11 as raw materials, the influence of simple sequence repeat(SSR) amplification on flue-cured tobacco SSR analysis of polymerase chain reaction(PCR) system of the main ingredients and among was studied, and the results showed that flue-cured tobacco SSR-PCR for 20 μL system, including template DNA 35 ng, 1.5 U TaqDNA polymerase, 2.375 mmol/L MgCl2, 0.6 mmol/L dNTPs, 0.4 μmol/L primer.
2013, 28(5)
:43-46.
doi: 10.3969/j.issn.2095-476X.2013.05.010
Abstract:
By the single factor test on the controlling parameter which influences the ventilation rate of cigarette, combined with the response surface methodology with three factors at three levels, the influence of process parameters on the ventilation rate of cigarette was studied. The results showed that the cigarette weight and the coefficient of kinematic friction of tipping paper, as well as the no-glue area of tipping paper, had significant influence on the ventilation rate of cigarette. When process parameters as follows: ventilation rate 48.0%, cigarette weight 0.88 g, coefficient of kinematic friction of tipping paper 0.36 and noglue area of tipping paper 165 mm2, the optimal control effect was obtained. The regression equation model that established in test was effective and significant, it could guide control the stability of the ventilation rate.
By the single factor test on the controlling parameter which influences the ventilation rate of cigarette, combined with the response surface methodology with three factors at three levels, the influence of process parameters on the ventilation rate of cigarette was studied. The results showed that the cigarette weight and the coefficient of kinematic friction of tipping paper, as well as the no-glue area of tipping paper, had significant influence on the ventilation rate of cigarette. When process parameters as follows: ventilation rate 48.0%, cigarette weight 0.88 g, coefficient of kinematic friction of tipping paper 0.36 and noglue area of tipping paper 165 mm2, the optimal control effect was obtained. The regression equation model that established in test was effective and significant, it could guide control the stability of the ventilation rate.
2013, 28(5)
:47-49.
doi: 10.3969/j.issn.2095-476X.2013.05.011
Abstract:
In view of the problem with insufficient of the users interest, data sparsity in filter algorithm system, a collaborative filtering recommendation algorithm based on users interest was proposed. The algorithm introduced the user interest weights, established evaluation user-item matrix, through cluster analysis, makes similarity calculation and finally got the recommended results. The experimental results showed that the algorithm could effectively use the interest of user, and improve the quality of recommendation.
In view of the problem with insufficient of the users interest, data sparsity in filter algorithm system, a collaborative filtering recommendation algorithm based on users interest was proposed. The algorithm introduced the user interest weights, established evaluation user-item matrix, through cluster analysis, makes similarity calculation and finally got the recommended results. The experimental results showed that the algorithm could effectively use the interest of user, and improve the quality of recommendation.
2013, 28(5)
:50-53.
doi: 10.3969/j.issn.2095-476X.2013.05.012
Abstract:
To introduce modified collaborative filtering recommendation algorithm to knowledge recommendation system, the user cluster was carried out by calculating the similarity of learning objectives, background and cognitive competence between the different learners and then completing recommendation using collaborative filtering algorithm in the user cluster. The results showed that this method could improve the accuracy and efficiency of recommendation, and could meet user's meeds. In the process of knowledge recommendation, it also exits new user problem, real-time problem similar to traditional collaborative filtering recommendation. The specific solution method will be the main content of future research.
To introduce modified collaborative filtering recommendation algorithm to knowledge recommendation system, the user cluster was carried out by calculating the similarity of learning objectives, background and cognitive competence between the different learners and then completing recommendation using collaborative filtering algorithm in the user cluster. The results showed that this method could improve the accuracy and efficiency of recommendation, and could meet user's meeds. In the process of knowledge recommendation, it also exits new user problem, real-time problem similar to traditional collaborative filtering recommendation. The specific solution method will be the main content of future research.
2013, 28(5)
:54-58.
doi: 10.3969/j.issn.2095-476X.2013.05.013
Abstract:
Aiming at the problems of error uneveness in regular hexagon grid location algorithm and nodes redundancy in the square grid positioning algorithm, a new centroid localization algorithm based on the anchor nodes equilateral triangular distribution was proposed. The algorithm used the theory of meshing to verify the rationality of the grid and explored the effects of parameter on this new algorithm through experiments. The simulation results showed that the algorithm in the case of simple structure, relatively small hardware investment and power consumption, improved node localization accuracy. However, the number of anchor nodes and computation have increased in this algorithm, subject to future improvements.
Aiming at the problems of error uneveness in regular hexagon grid location algorithm and nodes redundancy in the square grid positioning algorithm, a new centroid localization algorithm based on the anchor nodes equilateral triangular distribution was proposed. The algorithm used the theory of meshing to verify the rationality of the grid and explored the effects of parameter on this new algorithm through experiments. The simulation results showed that the algorithm in the case of simple structure, relatively small hardware investment and power consumption, improved node localization accuracy. However, the number of anchor nodes and computation have increased in this algorithm, subject to future improvements.
2013, 28(5)
:59-61.
doi: 10.3969/j.issn.2095-476X.2013.05.014
Abstract:
The FP-Growth algorithm of frequent itemsets mining algorithm was applied to the graduate information management system. The FP tree of transaction data set to compress and storaged in this algorithm, and then re-uses FP tree to get all the frequent itemsets. The system could find out the relationship between the employment information and education information, based on a large number of graduates information, so as to provide guidance or data support.
The FP-Growth algorithm of frequent itemsets mining algorithm was applied to the graduate information management system. The FP tree of transaction data set to compress and storaged in this algorithm, and then re-uses FP tree to get all the frequent itemsets. The system could find out the relationship between the employment information and education information, based on a large number of graduates information, so as to provide guidance or data support.
2013, 28(5)
:62-65.
doi: 10.3969/j.issn.2095-476X.2013.05.015
Abstract:
In order to solve the high cost and long development cycle of the surrent call center system, a general framework call center system using digital voice card was designed. The system based on the computer telephone integration(CTI) technology, taking Microsoft. NET as the platform, SQL Server 2005 as the background database, C# language as a development tool, and using the three layer structure of. NET. The experimental results showed that the system, with its good scalability, shorten development cycle and reduce development cost.
In order to solve the high cost and long development cycle of the surrent call center system, a general framework call center system using digital voice card was designed. The system based on the computer telephone integration(CTI) technology, taking Microsoft. NET as the platform, SQL Server 2005 as the background database, C# language as a development tool, and using the three layer structure of. NET. The experimental results showed that the system, with its good scalability, shorten development cycle and reduce development cost.
2013, 28(5)
:66-69.
doi: 10.3969/j.issn.2095-476X.2013.05.016
Abstract:
Aiming at the resampling and requantization error caused by image rotation and scaling transformation, the improved Zernike moment method was proposed, that is, first the target area in the image was normalized shapely, and then the Zernike moments were normalized. The experimental data showed that the improved Zernike moments not only had rotation invariance, but also had the scale invariance which didn't have before improved. The classification results of the target to be identified based on the minimum distance classifier showed that the improved Zernike moments had a higher recognition rate. Its shortcomings are not applicable to the complex situations of target image background.
Aiming at the resampling and requantization error caused by image rotation and scaling transformation, the improved Zernike moment method was proposed, that is, first the target area in the image was normalized shapely, and then the Zernike moments were normalized. The experimental data showed that the improved Zernike moments not only had rotation invariance, but also had the scale invariance which didn't have before improved. The classification results of the target to be identified based on the minimum distance classifier showed that the improved Zernike moments had a higher recognition rate. Its shortcomings are not applicable to the complex situations of target image background.
2013, 28(5)
:70-73.
doi: 10.3969/j.issn.2095-476X.2013.05.017
Abstract:
It is well known that the two-dimensional facial expression data contains limited information, and the poor performance of the facial expression recognition under the condition of changing illumination and posture. In order to overcome these shortcomings of the 2D facial expression, In this paper, we propose and explore a novel method to recognize human facial expression in 3D based on Self Organizing Map(SOM). In the method, the mean and variance are used to describe the convex and concave surface of the face which become the facial expression change characteristics datas. The simulation experimental results showed that the effect of using the classification and recognition of SOM network was superior to the AdaBoost algorithm.
It is well known that the two-dimensional facial expression data contains limited information, and the poor performance of the facial expression recognition under the condition of changing illumination and posture. In order to overcome these shortcomings of the 2D facial expression, In this paper, we propose and explore a novel method to recognize human facial expression in 3D based on Self Organizing Map(SOM). In the method, the mean and variance are used to describe the convex and concave surface of the face which become the facial expression change characteristics datas. The simulation experimental results showed that the effect of using the classification and recognition of SOM network was superior to the AdaBoost algorithm.
2013, 28(5)
:74-77.
doi: 10.3969/j.issn.2095-476X.2013.05.018
Abstract:
Aiming at how to monitor road traffic flow with real-time intelligent and determine the real-time traffic conditions, a road traffic flow imformation acquisition and release system based on video was designed. Using improved Gaussian method, the road background was extracted and updated, then the vehicle number was calculated by background subtraction and feature extraction which improved the efficiency of traffic flow statistics and had application value.
Aiming at how to monitor road traffic flow with real-time intelligent and determine the real-time traffic conditions, a road traffic flow imformation acquisition and release system based on video was designed. Using improved Gaussian method, the road background was extracted and updated, then the vehicle number was calculated by background subtraction and feature extraction which improved the efficiency of traffic flow statistics and had application value.
2013, 28(5)
:78-84.
doi: 10.3969/j.issn.2095-476X.2013.05.019
Abstract:
Based on the Bayesian parameters estimation theory, prospecting from the reducing amount of calculation and improving computational efficiency, the deterministic sampling methods such as the GaussHermite filtering, extended Kalman filtering, and Sigma-points Kalman filtering algorithms and the random sampling methods of particles filtering algorithms were reviewed, the research field and development direction of Bayesians optimal theory were presented, which could design the new efficient and high-precision particle filtering algorithm from the sampling function design, resampling technique and Gauss approximate method. At the same time, designing the box particle filtering algorithms became the new idea of the particle filtering algorithm.
Based on the Bayesian parameters estimation theory, prospecting from the reducing amount of calculation and improving computational efficiency, the deterministic sampling methods such as the GaussHermite filtering, extended Kalman filtering, and Sigma-points Kalman filtering algorithms and the random sampling methods of particles filtering algorithms were reviewed, the research field and development direction of Bayesians optimal theory were presented, which could design the new efficient and high-precision particle filtering algorithm from the sampling function design, resampling technique and Gauss approximate method. At the same time, designing the box particle filtering algorithms became the new idea of the particle filtering algorithm.
2013, 28(5)
:85-88.
doi: 10.3969/j.issn.2095-476X.2013.05.020
Abstract:
Aiming at the maintenance environment requirement for curing room of building material specimen, DS18B20, reed liquid level sensor and AT89S52 were adopted to consist the controller with low power consumption, low cost, high expansibility, simple structure and strong anti-jamming capability, as well as excellent adaptability to the complex environment. This system realized the network dynamic monitoring of specimen curing site using MCGS configuration software, and it characterized by good human-machine conversation, and clear and visualized configuration figure. Data acquisition, real-time control, overrun alarm, storage, online query analysis and print management can be conducted for a variety of monitoring parameters.
Aiming at the maintenance environment requirement for curing room of building material specimen, DS18B20, reed liquid level sensor and AT89S52 were adopted to consist the controller with low power consumption, low cost, high expansibility, simple structure and strong anti-jamming capability, as well as excellent adaptability to the complex environment. This system realized the network dynamic monitoring of specimen curing site using MCGS configuration software, and it characterized by good human-machine conversation, and clear and visualized configuration figure. Data acquisition, real-time control, overrun alarm, storage, online query analysis and print management can be conducted for a variety of monitoring parameters.
2013, 28(5)
:89-92.
doi: 10.3969/j.issn.2095-476X.2013.05.021
Abstract:
In order to realize intelligent management of cement samples, cement wireless measurement and control device was designed using WSN RFID technology, with the MSP430F149 as the core equipped with state monitoring module, wireless communication module, sound-light alarm module. The system realized real-time monitoring of the status of samples, automatic recognition of cement samples, storage test data and overrun alarm, and traceability and real-time monitoring of cement laboratory sample were achieved.
In order to realize intelligent management of cement samples, cement wireless measurement and control device was designed using WSN RFID technology, with the MSP430F149 as the core equipped with state monitoring module, wireless communication module, sound-light alarm module. The system realized real-time monitoring of the status of samples, automatic recognition of cement samples, storage test data and overrun alarm, and traceability and real-time monitoring of cement laboratory sample were achieved.
2013, 28(5)
:93-97.
doi: 10.3969/j.issn.2095-476X.2013.05.022
Abstract:
In order to achieve the exact tracking of the motor current, decrease the torque's wave motion of the direct motor, the control strategy of the two-dimensional fuzzy controller of phase-lead compensation and fuzzy self-adaptive PID control were proposed. The simulation results showed that the controller reduced the overshoot and shorted the response time. With stable output response and good dynamic performance and steady-state precision, it improved the system of anti-interference ability and robustness.
In order to achieve the exact tracking of the motor current, decrease the torque's wave motion of the direct motor, the control strategy of the two-dimensional fuzzy controller of phase-lead compensation and fuzzy self-adaptive PID control were proposed. The simulation results showed that the controller reduced the overshoot and shorted the response time. With stable output response and good dynamic performance and steady-state precision, it improved the system of anti-interference ability and robustness.
2013, 28(5)
:98-101.
doi: 10.3969/j.issn.2095-476X.2013.05.023
Abstract:
It is composed of two wave-guide waffle-iron harmonic filters. HFSS proves that designed filter with the voltage standing wave ratio and the insertion loss band is low, the design makes the power-handling capacity of filter is high and the filter reliability is well, the filter can be applied to various reconnaissance equipments with harmonic. It isn't only controlling secondary and thrice harmonic but also controlling fourth harmonic, especially it can cut down 80 dB fourth harmonic.
It is composed of two wave-guide waffle-iron harmonic filters. HFSS proves that designed filter with the voltage standing wave ratio and the insertion loss band is low, the design makes the power-handling capacity of filter is high and the filter reliability is well, the filter can be applied to various reconnaissance equipments with harmonic. It isn't only controlling secondary and thrice harmonic but also controlling fourth harmonic, especially it can cut down 80 dB fourth harmonic.
2013, 28(5)
:102-104.
doi: 10.3969/j.issn.2095-476X.2013.05.024
Abstract:
For uncertain time-delay system with input delay, the integral controller with memory was designed by using Lyapunov stability theory and a special lemma, which made the system asymptotically stable in finite time and the delay-dependent stability criterion was also given. A numerical example showed the effectiveness of the proposed design method.
For uncertain time-delay system with input delay, the integral controller with memory was designed by using Lyapunov stability theory and a special lemma, which made the system asymptotically stable in finite time and the delay-dependent stability criterion was also given. A numerical example showed the effectiveness of the proposed design method.
2013, 28(5)
:105-108.
doi: 10.3969/j.issn.2095-476X.2013.05.025
Abstract:
According to the actual situation, the two-type-risk model with the arrival of the term policies and the occurrences of the claim happen as binominal process by considering the investment income was discussed based on the classical model. Then the formula of ultimate ruin probability and the Lundberg inequality were derived.
According to the actual situation, the two-type-risk model with the arrival of the term policies and the occurrences of the claim happen as binominal process by considering the investment income was discussed based on the classical model. Then the formula of ultimate ruin probability and the Lundberg inequality were derived.
Journal Information
Founded in 1986， bimonthly
Administered by：The Education Department Henan Province
Sponsored by：Zhengzhou University of Light Industry
Editor-in-chief：Wei Shizhong
Executive Editor-in-Chief：Zou Lin
Subeditor：Qu Shuanghong
Edited & published by：Editorial Department of Journal of Light Industry
CN 41-1437/TS
ISSN 2096-1553
Address：136 Science Avenue, Zhengzhou City, Henan Province, China
Postal Code：450001
Tel：(086)0371-86608635
(086)0371-86608633
