2014 Vol. 29, No. 1
Display Method: |
2014, 29(1)
:1-6.
doi: 10.3969/j.issn.2095-476X.2014.01.001
Abstract:
Using nucleotide as medium,a new method for data hiding in secondary structure of RNA was proposed to protect the security of secret messages.Firstly the secret message was encoded into a RNA sequence,which was then embedded in reference RNA sequence.With the free energy as constraint condition,the position information could be got by prediction software RNA structure.After receiving the reference sequence and position information,the intended recipient recovered the secret information through prediction software and constraint restoration.The simulation results showed that the data hiding scheme had high stability and security.It could be used in secret communication.
Using nucleotide as medium,a new method for data hiding in secondary structure of RNA was proposed to protect the security of secret messages.Firstly the secret message was encoded into a RNA sequence,which was then embedded in reference RNA sequence.With the free energy as constraint condition,the position information could be got by prediction software RNA structure.After receiving the reference sequence and position information,the intended recipient recovered the secret information through prediction software and constraint restoration.The simulation results showed that the data hiding scheme had high stability and security.It could be used in secret communication.
2014, 29(1)
:7-14.
doi: 10.3969/j.issn.2095-476X.2014.01.002
Abstract:
Structural DNA nanotechnology was systematic summarized,including the research status of DNA self-assembly,DNA origami and SST self-assembly.In the design of Zhengzhou University of Light Industry badge for instance,DNA origami and SST self-assembly were introduced to devise and establish DNA structural model of school badge with hollow structure.With this example,structural DNA nanotechnology was valued and investigated.The main application of the technique was in the aspects of the assembly of guiding inorganic nanoparticles with precision,the equipment of nano-bio-chip,as well as the combination with micro-machining technology.In view of this it was proposed that structural DNA nanotechnology would play a more active role in the application field of nano-electronic circuits and devices,nano-optoelectronics,biosensors of high sensitivity and high
Structural DNA nanotechnology was systematic summarized,including the research status of DNA self-assembly,DNA origami and SST self-assembly.In the design of Zhengzhou University of Light Industry badge for instance,DNA origami and SST self-assembly were introduced to devise and establish DNA structural model of school badge with hollow structure.With this example,structural DNA nanotechnology was valued and investigated.The main application of the technique was in the aspects of the assembly of guiding inorganic nanoparticles with precision,the equipment of nano-bio-chip,as well as the combination with micro-machining technology.In view of this it was proposed that structural DNA nanotechnology would play a more active role in the application field of nano-electronic circuits and devices,nano-optoelectronics,biosensors of high sensitivity and high
2014, 29(1)
:15-21.
doi: 10.3969/j.issn.2095-476X.2014.01.003
Abstract:
DNA strand displacement as a new kind of technology has been used in the construction of artificial biochemical logic circuit depending on the DNA molecular component.The research progress of DNA strand displacement technology in many fields was reviewed, including logic gate operation model, biochemical logic circuit and neural network, DNA nanorobotics, DNA reaction network and so on.The related applications of DNA strand displacement technology obtained experimental verification through the design and the simulation of half adder/full adder and encoder logic operation models.Based on these,it was put forward that constructing dynamic and functional nanomachines, integrating DNA logic gates and building DNA computer system structure were to be the development direction of application of DNA strand displacement technology.
DNA strand displacement as a new kind of technology has been used in the construction of artificial biochemical logic circuit depending on the DNA molecular component.The research progress of DNA strand displacement technology in many fields was reviewed, including logic gate operation model, biochemical logic circuit and neural network, DNA nanorobotics, DNA reaction network and so on.The related applications of DNA strand displacement technology obtained experimental verification through the design and the simulation of half adder/full adder and encoder logic operation models.Based on these,it was put forward that constructing dynamic and functional nanomachines, integrating DNA logic gates and building DNA computer system structure were to be the development direction of application of DNA strand displacement technology.
2014, 29(1)
:22-28.
doi: 10.3969/j.issn.2095-476X.2014.01.004
Abstract:
Some existing DNA computing softwares, such as caDNAno tools, Visual DSD tools and NUPACK tools,were reviewed.Based on the caDNAno and Visual DSD, two DNA self-assembly models were described,which are respectively corresponding to Zhengzhou University of Light Industry badge and the prime number judging.After that, the application and feasibility of related softwares was discussed.And then, it was pionted that software platforms design was an important issue in the research of DNA self-assembly computation.
Some existing DNA computing softwares, such as caDNAno tools, Visual DSD tools and NUPACK tools,were reviewed.Based on the caDNAno and Visual DSD, two DNA self-assembly models were described,which are respectively corresponding to Zhengzhou University of Light Industry badge and the prime number judging.After that, the application and feasibility of related softwares was discussed.And then, it was pionted that software platforms design was an important issue in the research of DNA self-assembly computation.
2014, 29(1)
:29-33.
doi: 10.3969/j.issn.2095-476X.2014.01.005
Abstract:
The traditional technology of alcoholic fermentation and acetic fermentation was used to produce vinegar.The influence to technique parameters of the alcoholic fermentation caused by temperature,proportion of buckwheat with sorghum and usage of lees was investigated.The influence to technique parameters of the acetic fermentation caused by ethanol concentration,temperature and inoculations dosage was also investigated.The method of orthogonal design was employed to determine the optimal technological conditions of the vinegar.The optimal conditions for alcoholic fermentation were found as follows:temperature 32℃,proportion of buckwheat and sorghum 45%,the usage of lees 5.5%.The optimal acetic fermentation conditions were obtained as follows:ethanol concentration of 5.0%,temperature 36℃,inoculations dosage of 5%.Accordingly brewed buckwheat vinegar meets the national standard.It has not only the quality of traditional vinegar,but also the unique health benefits of buckwheat.
The traditional technology of alcoholic fermentation and acetic fermentation was used to produce vinegar.The influence to technique parameters of the alcoholic fermentation caused by temperature,proportion of buckwheat with sorghum and usage of lees was investigated.The influence to technique parameters of the acetic fermentation caused by ethanol concentration,temperature and inoculations dosage was also investigated.The method of orthogonal design was employed to determine the optimal technological conditions of the vinegar.The optimal conditions for alcoholic fermentation were found as follows:temperature 32℃,proportion of buckwheat and sorghum 45%,the usage of lees 5.5%.The optimal acetic fermentation conditions were obtained as follows:ethanol concentration of 5.0%,temperature 36℃,inoculations dosage of 5%.Accordingly brewed buckwheat vinegar meets the national standard.It has not only the quality of traditional vinegar,but also the unique health benefits of buckwheat.
2014, 29(1)
:34-37.
doi: 10.3969/j.issn.2095-476X.2014.01.006
Abstract:
To investigate the inhibition effect of Pu'er tea extract,the Staphylococcus aureus(S.aureus) was used as test bacteria.The inhibition effects of Pu'er tea extract from water,75% ethanol and 95% ethanol on minimal inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were studied by paper diffusion methods.The results indicated that the Pu'er tea extract concentration within the range of 4~20 mg/mL had a strong inhibitory effect against S.aureus and the inhibitory effect increased with the concentration.95% ethanol extract on S.aureus inhibitory effect was more obvious,and both its MIC and MBC were 0.63 mg/mL.
To investigate the inhibition effect of Pu'er tea extract,the Staphylococcus aureus(S.aureus) was used as test bacteria.The inhibition effects of Pu'er tea extract from water,75% ethanol and 95% ethanol on minimal inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were studied by paper diffusion methods.The results indicated that the Pu'er tea extract concentration within the range of 4~20 mg/mL had a strong inhibitory effect against S.aureus and the inhibitory effect increased with the concentration.95% ethanol extract on S.aureus inhibitory effect was more obvious,and both its MIC and MBC were 0.63 mg/mL.
2014, 29(1)
:38-43,53.
doi: 10.3969/j.issn.2095-476X.2014.01.007
Abstract:
The biosorption mechanism,influential factors,adsorbent desorption,kinetics models and equilibrium isotherm models of biosorption treatment of heavy metal ions using yeasts were reviewed.It also concluded that the keys to realize the industrial application of yeast biosorption in wastewater were decreasing the costs,simplifying the procedures.The future research will focus on the biosorption mechanism and the optimum biosorption conditions,the immobilization technology of yeasts and the reuse or regeneration of yeasts.
The biosorption mechanism,influential factors,adsorbent desorption,kinetics models and equilibrium isotherm models of biosorption treatment of heavy metal ions using yeasts were reviewed.It also concluded that the keys to realize the industrial application of yeast biosorption in wastewater were decreasing the costs,simplifying the procedures.The future research will focus on the biosorption mechanism and the optimum biosorption conditions,the immobilization technology of yeasts and the reuse or regeneration of yeasts.
2014, 29(1)
:44-47.
doi: 10.3969/j.issn.2095-476X.2014.01.008
Abstract:
Starting from the analysis of the current Chinese dietary transition problem and the relationship with high incidence of the diseasecardiovascular disease,the main factors causing increase in serum cholesterol levels and the cholesterol-regulating nutraceuticals and functional foods was reviewed.The diet characteristics resulted in the increase of serum cholesterol were high-fat,high-calorie,low-carbohydrate and low fiber compounds.The natural compounds for serum cholesterol regulation were HMG-CoA reductase inhibitors,LDL receptor activators,NPC1L1 competitors,intestinal ACAT inhibitors,bile acid re-absorption inhibitor/bile acid binding resin and CETP inhibitors.The cholesterol-regulating functional foods included dietary fibers,hawthorn flavonoids,apple polyphenols,buck wheat,etc.
Starting from the analysis of the current Chinese dietary transition problem and the relationship with high incidence of the diseasecardiovascular disease,the main factors causing increase in serum cholesterol levels and the cholesterol-regulating nutraceuticals and functional foods was reviewed.The diet characteristics resulted in the increase of serum cholesterol were high-fat,high-calorie,low-carbohydrate and low fiber compounds.The natural compounds for serum cholesterol regulation were HMG-CoA reductase inhibitors,LDL receptor activators,NPC1L1 competitors,intestinal ACAT inhibitors,bile acid re-absorption inhibitor/bile acid binding resin and CETP inhibitors.The cholesterol-regulating functional foods included dietary fibers,hawthorn flavonoids,apple polyphenols,buck wheat,etc.
2014, 29(1)
:48-53.
doi: 10.3969/j.issn.2095-476X.2014.01.009
Abstract:
The relationships between the appearance quality and chemical composition index in flue-cured tobacco leaves in Baoshan tobacco-growing areas were studied.The results indicated that:1)descriptive statistics results showed that the flue-cured tobacco appearance quality in Baoshan area indicators,on average belong to the upper level,nicotine,total nitrogen was in the appropriate scope,total sugar,reducing sugar,protein and potassium content were higher and the chlorine content was low.2) simple correlation showed that tobacco appearance quality index had significant correlation with chemical composition.3)canonical correlation analysis results showed that the Canonical variable significant difference at 1% level (λ1=0.882 6**),group Ⅰ (u1,v1) typical variables,a linear combination of reflect in a certain range,with the increase of nicotine,total nitrogen and alkaline nitrogen ratio,sugar alkali than the decrease of the value,the appearance quality of the tobacco leaf color and oil content has a tendency to increase;Canonical variable significant difference at 1% level (λ2=0.760 7**),the first Ⅱ for typical variable (u2,v2),suggests that within a certain range,with the chemical composition of potassium,total sugar and the rise and fall of chlorine,tobacco maturity with the same change trend.4)grey correlation analysis showed that the smoke and baoshan district tobacco appearance quality correlation was the largest chemical composition of protein,total nitrogen,total sugar and reducing sugar,etc.
The relationships between the appearance quality and chemical composition index in flue-cured tobacco leaves in Baoshan tobacco-growing areas were studied.The results indicated that:1)descriptive statistics results showed that the flue-cured tobacco appearance quality in Baoshan area indicators,on average belong to the upper level,nicotine,total nitrogen was in the appropriate scope,total sugar,reducing sugar,protein and potassium content were higher and the chlorine content was low.2) simple correlation showed that tobacco appearance quality index had significant correlation with chemical composition.3)canonical correlation analysis results showed that the Canonical variable significant difference at 1% level (λ1=0.882 6**),group Ⅰ (u1,v1) typical variables,a linear combination of reflect in a certain range,with the increase of nicotine,total nitrogen and alkaline nitrogen ratio,sugar alkali than the decrease of the value,the appearance quality of the tobacco leaf color and oil content has a tendency to increase;Canonical variable significant difference at 1% level (λ2=0.760 7**),the first Ⅱ for typical variable (u2,v2),suggests that within a certain range,with the chemical composition of potassium,total sugar and the rise and fall of chlorine,tobacco maturity with the same change trend.4)grey correlation analysis showed that the smoke and baoshan district tobacco appearance quality correlation was the largest chemical composition of protein,total nitrogen,total sugar and reducing sugar,etc.
2014, 29(1)
:54-58.
doi: 10.3969/j.issn.2095-476X.2014.01.010
Abstract:
The difference of volatile aromatic compounds (VAC) in flue-cured tobacco from China,Zimbabwe and Brazil was analyzed using the basic descriptive statistics single factor,ANOVA and principal component analysis.The results showed that:1) for all kinds of flavor material in flue-cured tobacco,domestic tobacco was less than Zimbabwe's and Brazil's,while Zimbabwe's had the highest total amount of VAC,followed by Brazil,and the domestic tobacco was lower than both;2)domestic tobacco and Brazil,Zimbabwe tobacco had significantly differences in all kinds of flavor ingredients besides neophytadiene and furans;3) tobacco integrated quality ranked as Zimbabwe> Brazil> Domestic.
The difference of volatile aromatic compounds (VAC) in flue-cured tobacco from China,Zimbabwe and Brazil was analyzed using the basic descriptive statistics single factor,ANOVA and principal component analysis.The results showed that:1) for all kinds of flavor material in flue-cured tobacco,domestic tobacco was less than Zimbabwe's and Brazil's,while Zimbabwe's had the highest total amount of VAC,followed by Brazil,and the domestic tobacco was lower than both;2)domestic tobacco and Brazil,Zimbabwe tobacco had significantly differences in all kinds of flavor ingredients besides neophytadiene and furans;3) tobacco integrated quality ranked as Zimbabwe> Brazil> Domestic.
2014, 29(1)
:59-62.
doi: 10.3969/j.issn.2095-476X.2014.01.011
Abstract:
The application of Maillard reaction products in tobacco flavoring,tobacco sheet,tobacco biological technology etc.were reviewed.It was pointed out:the quality of Maillard reaction products should be improved,flavor substance should be developed similar to leaf color,fragrance and natural aroma,cracking and flavor aroma of coordination in the suction,which could cover the miscellaneous gas,and make people feel happy in aspiration in order to produce nicotine,replacing harmless Maillard reaction products.
The application of Maillard reaction products in tobacco flavoring,tobacco sheet,tobacco biological technology etc.were reviewed.It was pointed out:the quality of Maillard reaction products should be improved,flavor substance should be developed similar to leaf color,fragrance and natural aroma,cracking and flavor aroma of coordination in the suction,which could cover the miscellaneous gas,and make people feel happy in aspiration in order to produce nicotine,replacing harmless Maillard reaction products.
2014, 29(1)
:63-66,82.
doi: 10.3969/j.issn.2095-476X.2014.01.012
Abstract:
The impact of time,temperature and Baume degree on the viscosity of sizing liquor A on the basis of paper-making reconstituted tobacco product A was studied.The results showed that,with the increase of flowing time,the viscosity of coating liquid A increased gradually when Baume degree was over 25°Bé,while it had no influence to the viscosity when Baume degree lower than 25°Bé;and Baume degree had great influence on the viscosity of coating liquid.It could be concluded that the following favorable coating conditions should be satisfied for paper-making reconstituted tobacco manufacturing: Baume degree of coating liquid was about 24~25°Bé and temperature was 60~65℃.
The impact of time,temperature and Baume degree on the viscosity of sizing liquor A on the basis of paper-making reconstituted tobacco product A was studied.The results showed that,with the increase of flowing time,the viscosity of coating liquid A increased gradually when Baume degree was over 25°Bé,while it had no influence to the viscosity when Baume degree lower than 25°Bé;and Baume degree had great influence on the viscosity of coating liquid.It could be concluded that the following favorable coating conditions should be satisfied for paper-making reconstituted tobacco manufacturing: Baume degree of coating liquid was about 24~25°Bé and temperature was 60~65℃.
2014, 29(1)
:67-69,78.
doi: 10.3969/j.issn.2095-476X.2014.01.013
Abstract:
In order to improve the measurement accuracy of thermal shrinkage rate of tear tape,an automatic test facility for thermal shrinkage rate of tear tape for cigarette was designed.It was put forward to use tension sensor to determine the tensioning state of the tear tape for cigarette in both sample and measure conditions,and use displacement sensor to monitor the change in length.The designed device was used to test thermal shrinkage rate and according to the test results,this device had good accuracy and repeatability.The facility could meet requirements from this test method.
In order to improve the measurement accuracy of thermal shrinkage rate of tear tape,an automatic test facility for thermal shrinkage rate of tear tape for cigarette was designed.It was put forward to use tension sensor to determine the tensioning state of the tear tape for cigarette in both sample and measure conditions,and use displacement sensor to monitor the change in length.The designed device was used to test thermal shrinkage rate and according to the test results,this device had good accuracy and repeatability.The facility could meet requirements from this test method.
2014, 29(1)
:70-73.
doi: 10.3969/j.issn.2095-476X.2014.01.014
Abstract:
Aiming at the problem that the cigarette filter rod spice line was difficult to achieve accurate positioning when it converged into the tow nozzle entrance,according to KDF2 filter rod forming machine,the spice line positioning technology was improved.A positioning hole was arranged on the tow nozzle bracket,it could get into cold bonding room directly converging with tow.The spice line could adjust the export position.The improved results showed that,the fragrance line location value of incense linear filter rod was 3.84 mm on average,the error was less than ±1 mm.It completely eliminated seam open phenomenon when the spice liquid was mixed with hot glue.The qualification rate of filter rod reached 99.44%.
Aiming at the problem that the cigarette filter rod spice line was difficult to achieve accurate positioning when it converged into the tow nozzle entrance,according to KDF2 filter rod forming machine,the spice line positioning technology was improved.A positioning hole was arranged on the tow nozzle bracket,it could get into cold bonding room directly converging with tow.The spice line could adjust the export position.The improved results showed that,the fragrance line location value of incense linear filter rod was 3.84 mm on average,the error was less than ±1 mm.It completely eliminated seam open phenomenon when the spice liquid was mixed with hot glue.The qualification rate of filter rod reached 99.44%.
2014, 29(1)
:74-78.
doi: 10.3969/j.issn.2095-476X.2014.01.015
Abstract:
Fe3O4-chitosan (CTS) imprinted nanoparticles were prepared by one-step coprecipitation using Zn2+ as template and glutaraldehyde as a crosslinking agent.The nanoparticles were characterized by X-ray diffraction (XRD),Fourier transform infrared spectroscopy (FTIR) and thermo gravimetric analysis (TG) respectively.The effect of pH,initial concentration of Zn2+ and temperature on adsorption of Zn2+ was also studied by atom adsorption spectroscopy (AAS) and finally the adsorption of various heavy metal ions was discussed.The results showed that the nanaoparticles were successfully covered with chitosan,and their original spinel structure hadn't changed.The amount of chitosan was about 10.2%(wt).The suitable pH was 6.When the initial concentration of Zn2+ was 200 mg/L,the adsorption capacity reached its maximum value which was about 28.9 mg/g.Decreasing temperature benefited the adsorption process and the nanoparticles showed selective adsorption of zinc ions.
Fe3O4-chitosan (CTS) imprinted nanoparticles were prepared by one-step coprecipitation using Zn2+ as template and glutaraldehyde as a crosslinking agent.The nanoparticles were characterized by X-ray diffraction (XRD),Fourier transform infrared spectroscopy (FTIR) and thermo gravimetric analysis (TG) respectively.The effect of pH,initial concentration of Zn2+ and temperature on adsorption of Zn2+ was also studied by atom adsorption spectroscopy (AAS) and finally the adsorption of various heavy metal ions was discussed.The results showed that the nanaoparticles were successfully covered with chitosan,and their original spinel structure hadn't changed.The amount of chitosan was about 10.2%(wt).The suitable pH was 6.When the initial concentration of Zn2+ was 200 mg/L,the adsorption capacity reached its maximum value which was about 28.9 mg/g.Decreasing temperature benefited the adsorption process and the nanoparticles showed selective adsorption of zinc ions.
2014, 29(1)
:79-82.
doi: 10.3969/j.issn.2095-476X.2014.01.016
Abstract:
Zinc electrodeposition was introduced on the surface of hydrogen absorbing alloy electrodes.The morphology and electrochemical properties of the electrodes were characterized by using scanning electronic microscope (SEM),cyclic voltammetry,electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge tests.The results showed that after zinc electrodeposition,the electron transfer rate on the surface of the electrodes was accelerated and the contact resistance decreased,thus resulting in a polarization reduction of the electrodes.Furthermore,after zinc electrodeposition,the charge voltage of the batteries decreased,the discharge capacity at 1 C rate increased by 15.3% and the discharge plateau voltage increased 22 mV,the charge-discharge property was improved obviously.
Zinc electrodeposition was introduced on the surface of hydrogen absorbing alloy electrodes.The morphology and electrochemical properties of the electrodes were characterized by using scanning electronic microscope (SEM),cyclic voltammetry,electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge tests.The results showed that after zinc electrodeposition,the electron transfer rate on the surface of the electrodes was accelerated and the contact resistance decreased,thus resulting in a polarization reduction of the electrodes.Furthermore,after zinc electrodeposition,the charge voltage of the batteries decreased,the discharge capacity at 1 C rate increased by 15.3% and the discharge plateau voltage increased 22 mV,the charge-discharge property was improved obviously.
2014, 29(1)
:83-85.
doi: 10.3969/j.issn.2095-476X.2014.01.017
Abstract:
In order to get viscosity evaluation parameters of hand cream and provide reference for its production by using AR-2000ex rheological testing machine,the rheological properties were studied based on experiments of viscosity-shear rate and oscillatory.The results showed that the viscosity of hand cream droped significantly in low shear rate,but the viscosity was low and tended to fixed value in high shear rate.Within strain interval of less than 2.0%,hand cream was in the linear viscoelastic region.The storage modulus G' increased with the increase of strain,and the loss modulus G" increased to a maximum value of 308.4 Pa at first,then decreased throughout the test period.
In order to get viscosity evaluation parameters of hand cream and provide reference for its production by using AR-2000ex rheological testing machine,the rheological properties were studied based on experiments of viscosity-shear rate and oscillatory.The results showed that the viscosity of hand cream droped significantly in low shear rate,but the viscosity was low and tended to fixed value in high shear rate.Within strain interval of less than 2.0%,hand cream was in the linear viscoelastic region.The storage modulus G' increased with the increase of strain,and the loss modulus G" increased to a maximum value of 308.4 Pa at first,then decreased throughout the test period.
2014, 29(1)
:86-89.
doi: 10.3969/j.issn.2095-476X.2014.01.018
Abstract:
Using thermal transfer label white single-layer hot melt ink as the research object,adding different kinds of titanium dioxide,different dosage of titanium dioxide,ultramarine blue,hyperdispersant,filler,whiteness meter was used to test the ink sample whiteness and determine ink sample after printing in black socks whiteness as ink covering power indexes.Experiment results showed that the performance of the titanium dioxide,the amount of titanium pigment and ink thickness of the coating had significantly positive effect on the ink whiteness and hiding power.The R-706 titanium dioxide effect was the best when the dosage was 50 g,and the ultramarine blue,hyperdispersant,filter had little significantly effect on the whiteness and hiding power.
Using thermal transfer label white single-layer hot melt ink as the research object,adding different kinds of titanium dioxide,different dosage of titanium dioxide,ultramarine blue,hyperdispersant,filler,whiteness meter was used to test the ink sample whiteness and determine ink sample after printing in black socks whiteness as ink covering power indexes.Experiment results showed that the performance of the titanium dioxide,the amount of titanium pigment and ink thickness of the coating had significantly positive effect on the ink whiteness and hiding power.The R-706 titanium dioxide effect was the best when the dosage was 50 g,and the ultramarine blue,hyperdispersant,filter had little significantly effect on the whiteness and hiding power.
2014, 29(1)
:90-93.
doi: 10.3969/j.issn.2095-476X.2014.01.019
Abstract:
Aiming at the problem that high efficiency video coding(HEVC)as a new generation of video coding standards increased the computation complexity and influenced the coding efficiency,a fast intra prediction algorithm was proposed.It used SAMD value and the depth of the adjacent encoded block to screen the block type selection.The experimental results showed that the algorithm provided averagely 40.95% reduction of intra coding time compared with the one accepted by HM5.0 with unimportant loss of PSNR and a slight increase of bite-rate.
Aiming at the problem that high efficiency video coding(HEVC)as a new generation of video coding standards increased the computation complexity and influenced the coding efficiency,a fast intra prediction algorithm was proposed.It used SAMD value and the depth of the adjacent encoded block to screen the block type selection.The experimental results showed that the algorithm provided averagely 40.95% reduction of intra coding time compared with the one accepted by HM5.0 with unimportant loss of PSNR and a slight increase of bite-rate.
2014, 29(1)
:94-97,108.
doi: 10.3969/j.issn.2095-476X.2014.01.020
Abstract:
In order to screen the spreading spam over Internet telephony(SPIT) user,a recognition method was built based on weighted k-means and support vector machine(SVM).This method built a communication network model according to historical communication activities of customers,and clustered semi-supervised by weighted k-means algorithm.Then it equally selected part of customers data from each classified cluster as the training set and finally processed the rest data by using SVM method.Experimental data showed that this method could make the classification more refined and had forecast function and certain ability of machine learning.It can be used for the discovery of important customers,relevant customers and service recommendation,etc
In order to screen the spreading spam over Internet telephony(SPIT) user,a recognition method was built based on weighted k-means and support vector machine(SVM).This method built a communication network model according to historical communication activities of customers,and clustered semi-supervised by weighted k-means algorithm.Then it equally selected part of customers data from each classified cluster as the training set and finally processed the rest data by using SVM method.Experimental data showed that this method could make the classification more refined and had forecast function and certain ability of machine learning.It can be used for the discovery of important customers,relevant customers and service recommendation,etc
2014, 29(1)
:98-102.
doi: 10.3969/j.issn.2095-476X.2014.01.021
Abstract:
An optimization algorithm DCluStream was proposed which processed data over sliding window.The method adopted online-offline clustering framework of CluStream.The real time of the data object coming and out of sliding window was introduced into the characteristics of the cluster,adjusting the window size reasonably in the limited memory resources environment.Using the time decay mechanism on historical data could reduce the impact of new data object,which could get better clustering results.The experimental results showed that compared with the algorthm CluStream,data processing efficiency of the algorithm was relatively higher with saving memory.
An optimization algorithm DCluStream was proposed which processed data over sliding window.The method adopted online-offline clustering framework of CluStream.The real time of the data object coming and out of sliding window was introduced into the characteristics of the cluster,adjusting the window size reasonably in the limited memory resources environment.Using the time decay mechanism on historical data could reduce the impact of new data object,which could get better clustering results.The experimental results showed that compared with the algorthm CluStream,data processing efficiency of the algorithm was relatively higher with saving memory.
2014, 29(1)
:103-108.
doi: 10.3969/j.issn.2095-476X.2014.01.022
Abstract:
In view of the characteristics and requirements of the tobacco industry,the first batch management business model of the tobacco industry that could trace most of the cigarette accessories' smallest packaging unit of the whole supply chain was designed.By using the service-oriented design methods,it abstracted the batch management function into various batch services and selected the batch management technology components needed to design.It finally developed a batch management information platform,batch bar code management subsystem and handheld applications,and deployed the corresponding bar code printers and handheld devices.Application showed that the model achieved the full life cycle digital management of accessories' smallest particle size and supported precise quality tracing and production machine feeding error protection,all of which were of great significance in improving cigarette product quality.
In view of the characteristics and requirements of the tobacco industry,the first batch management business model of the tobacco industry that could trace most of the cigarette accessories' smallest packaging unit of the whole supply chain was designed.By using the service-oriented design methods,it abstracted the batch management function into various batch services and selected the batch management technology components needed to design.It finally developed a batch management information platform,batch bar code management subsystem and handheld applications,and deployed the corresponding bar code printers and handheld devices.Application showed that the model achieved the full life cycle digital management of accessories' smallest particle size and supported precise quality tracing and production machine feeding error protection,all of which were of great significance in improving cigarette product quality.
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
