Table of Content

25 November 2016, Volume 36 Issue 6

Previous Issue    Next Issue

An inexact reasoning method based on Choquet integral

CHEN Aixia,LIANG Zhiyong,FENG Huimin

2016, 36(6):  561-565.  DOI: 10.3969/j.issn.1000-1565.2016.06.001

Asbtract ( 525 )   PDF (373KB) ( 315 )  

References | Related Articles | Metrics

Fuzzy rule,which expresses the causation of the fuzzy knowledge,is one of the important tools in fuzzy reasoning.When the interaction exists among fuzzy propositions in a fuzzy rule set,the parameter weight is displaced by the fuzzy measure,and an inexact reasoning algorithm based on Choquet integral is proposed.This method is mainly used in the incomplete inductive reasoning.

On-line shopping evaluation model on the basis of multi-granularity linguistic information and its application

GUO Zixue,ZHANG Pei

2016, 36(6):  566-573.  DOI: 10.3969/j.issn.1000-1565.2016.06.002

Asbtract ( 453 )   PDF (450KB) ( 369 )  

References | Related Articles | Metrics

Customers are not able to see all the information about the products because of on-line shopping products' flatten characteristic,so on-line shopping comments have become the main channel for customers to obtain information about the products.In their daily lives,because of the evaluator's personal experience,personality and knowledge,they have different levels of evaluation language for all the indexes of on-line shopping activities.To boost the efficient development of e-commerce,based on the diversities of linguistic evaluation set of the indexes of on-line shopping evaluation,the method of the combination of multi-granular linguistic information and on-line shopping evaluation should be adopted to investigate the on-line shopping evaluation and decision-making model in the multi-granularity language environment.Results show that:the application of multi-granularity language for investigating on-line shopping evaluation is very helpful to improve the quality of evaluation and shows a positive effect on boosting the development of e-commerce.

Analysis of design index and structural mechanics of durabble asphalt pavement in desert areas

YANG Sanqiang,LIU Na,ZHANG Shuai,DU Erxia

2016, 36(6):  574-582.  DOI: 10.3969/j.issn.1000-1565.2016.06.003

Asbtract ( 442 )   PDF (1272KB) ( 436 )  

References | Related Articles | Metrics

In this paper,pavement performance index PCI,road surface deflection and pavement rutting are proposed as the design indexes of pavement structure by analyzing the desert region harsh natural environment under heavy load traffic asphalt pavement condition and using finite element analysis.We obtained the durability of the desert region asphalt pavement structure stress distribution.The results showed that different wheel load on road surface and the maximum vertical deformation has an approximate linear relationship.Along with increase of the axial load,the maximum vertical deformation gradually increases.The maximum tensile stress of the road surface is symmetrical distributed with the wheel axis.The shear stress in the pavement structure increases with the increase of depth,and the shear stress recches peak value at 5 cm away from road sorface.The research results can provide theoretical support and technical guidance for the selection and structural design of the asphalt pavement in the desert region.

Living oxygen concentration effect on NO removal efficiency on pulsed discharge

ZHANG Miao,WANG Xiaojun,CHENG Xueliang,ZHANG Lianshui

2016, 36(6):  583-589.  DOI: 10.3969/j.issn.1000-1565.2016.06.004

Asbtract ( 423 )   PDF (802KB) ( 256 )  

References | Related Articles | Metrics

As an essential pollution gas,NO gas has drawn attentions for investigating its removal microscopic mechanism,in order to improve the removal efficiency.The fluorescence technique has been applied to analyze the NO removal dynamics with O₂ or without O₂ using negative pulsed streamer discharge plasma.Results indicate that,without the participation of O₂,the direct collision dissociation between energetic electrons and NO molecular have played a major role for NO removal.Such a removal reacting pathway can be presented as NO+e^*→NO^*+e→N^*+O^*+e,which produces O and N atoms and then O₂ and N₂ molecules.With more oxygen,the major removal reaction of NO has been changed to the oxidation reaction to yield NO₂ rather than the former reduction reaction.

Analysis on discharge current characteristics of line-roller high-voltage electrostatic separator

ZHANG Jiaxi,SUN Bo,CUI Zhao,ZHU Junlu,ZHANG Zisheng

2016, 36(6):  589-595.  DOI: 10.3969/j.issn.1000-1565.2016.06.005

Asbtract ( 637 )   PDF (1515KB) ( 449 )  

References | Related Articles | Metrics

In order to improve the efficiency of high-voltage electrostatic separation,the characteristics of discharge current on the roller surface were explored.The experimental device of high-voltage discharge was made.The influence of different location wires on discharge current on roller surface was studied.The results indicated that:under the same conditions,with the decrease of corona wire diameter,the discharge current became bigger.The current on the surface of roller was close to a normal state.When two corona lines were used to discharge,the spatial distribution of the current had larger range and higher intensity.When three corona lines were used to discharge,at one position,the current distribution measured was wider and relatively stable where the angle between two outer corona lines and the distance between the corona line and the surface of the roller were 60° and 45 mm respectively.In this case,the angle between two outboard peaks was about 72°.It is advantageous for the electric charge of the material to be sorted,as the efficiency of sorting is improved.The simulation provides a theoretical foundation for electrostatic separator design.

Kinetic and thermodynamic study of U(Ⅵ)adsorption onto kaolin

LIANG Shimin,YU Tao

2016, 36(6):  596-603.  DOI: 10.3969/j.issn.1000-1565.2016.06.006

Asbtract ( 516 )   PDF (1083KB) ( 278 )  

References | Related Articles | Metrics

By static adsorption experiments,the effects of pH,ionic strength,adsorption time,solid-liquid ratio,temperature,humic acid on the adsorption of U(Ⅵ)onto kaolin were studied.Based on macroscopic adsorption experiments,the adsorption process was analyzed by thermodynamics and kinetics methods,and the kaolin samples were characterized by X-ray diffraction and scanning electron microscopy.The results show that pseudo-second-order kinetic model can be used to describe the adsorption of uranium on kaolin.Through the study of pH and ionic strength,the effect of pH on the adsorption of uranium is greater than the effect of the ionic strength on the adsorption of uranium.The presence of HA reduces the adsorption in a high pH range,while enhances the adsorption at low pH values.The adsorption of U(Ⅵ)onto kaolin could be described by Freundlich isothermal adsorption equation.The adsorption of U(Ⅵ)onto kaolin is an endothermic process,mainly occurs on the surface as a monomolecular layer.

Effects of reactive diluents type on chemical structure and property of epoxy resin system

LI Shanjian,DENG Shuanghui,FENG Yunlong,LIU Chaofan,LIU Zuozhen

2016, 36(6):  604-613.  DOI: 10.3969/j.issn.1000-1565.2016.06.007

Asbtract ( 1112 )   PDF (1200KB) ( 1055 )  

References | Related Articles | Metrics

The chemical reactivity and network and properties after curing of diglycidyl ether of bisphenol A(DGEBA)/amine systems were studied using viscosity analysis,different scanning calorimetry analysis(DSC),thermogravimetric analysis and universal testing machine.using three different diluents,including 1,4-butanediol diglycidyl ether,phenyl glycidyl ether and decylglycide ether.The result showed that the addition of aromatic diluents PGE into DGEBA curing system accelerated the curing reaction to a certain extent,resulted in enhancement of tensile and flexural strength and modulus,but led to a reduction of both elongation and the impact strength.However,the addition of the other two diluents had the contrary effects on these properties and the DGE which had the longest fatty chain segment had the most obvious effects.All tested modified epoxy compositions had lower thermal stability than unmodified epoxy resin.- DOI:10.3969/j.issn.1000-1565.2016.06.007活性稀释剂对环氧树脂结构和性能的影响李山剑¹,邓双辉²,冯云龙²,刘超凡¹,刘坐镇^1,2(1.华东理工大学 材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海 200237;2.华东理工大学 华昌聚合物有限公司,上海防腐蚀新材料工程技术研究中心,上海 200237)摘 要:选用3种具有不同分子结构和官能度的缩水甘油醚——1,4-丁二醇二缩水甘油醚(BDDGE)、苯基缩水甘油醚(PGE)和癸基缩水甘油醚(DGE)作为活性稀释剂,通过黏度、DSC、热重分析和万能实验机等方法考察了其对双酚A环氧-胺固化体系的反应活性、交联网络结构和性能的影响.结果表明:芳香类稀释剂的加入,对环氧-胺固化体系的反应活性影响不大甚至有所提升,且固化物的强度和模量提高,韧性降低;而脂肪族稀释剂则明显降低了固化体系的反应活性,随着脂肪链长度的增加,固化物的强度和模量下降,韧性提高;3种稀释剂的加入均降低了环氧体系的耐热性能.关键词:环氧树脂;活性稀释剂;反应活性;交联结构;性能中图分类号:O631 文献标志码:A 文章编号:1000-1565(2016)06-0604-10Effects of reactive diluents type on chemical structure and property of epoxy resin systemLI Shanjian¹,DENG Shuanghui²,FENG Yunlong²,LIU Chaofan¹,LIU Zuozhen^1,2(1.Key Laboratory for Special Functional Polymers and Related Technology of Ministry of Education,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237; 2.Shanghai Engineering Research Center of New Anti-corrosion Materials,Sino Polymer Co Ltd,East ChinaUniversity of Science and Technology,Shanghai 200237,China)Abstract: The chemical reactivity and network and properties after curing of diglycidyl ether of bisphenol A(DGEBA)/amine systems were studied using viscosity analysis,different scanning calorimetry analysis(DSC),thermogravimetric analysis and universal testing machine.using three different diluents,including 1,4-butanediol diglycidyl ether,phenyl glycidyl ether and decylglycide ether.The result showed that the addition of aromatic diluents PGE into DGEBA curing system accelerated the curing reaction to a certain extent,resulted in enhancement of tensile and flexural strength and modulus,but led to a reduction of both elongation and the impact strength.However,the addition of the other two diluents had the contrary effects on these properties and the DGE which had the longest fatty chain segment had the most obvious effects.All tested modified epoxy compositions had lower thermal stability than unmodified epoxy resin.- 收稿日期:2016-07-01 基金项目:上海市重大科技攻关项目(12dz1100401);上海工程技术研究中心能力提升项目(13DZ2280900) 第一作者:李山剑(1992—),男,江苏如皋人,华东理工大学在读硕士研究生.E-mail:lsj262728@126.com 通信作者:刘坐镇(1965—),男,河南新密人,华东理工大学教授,主要从事热固性树脂及其复合材料的研究.E-mail:lzz@hchp.com.cn第6期李山剑等:活性稀释剂对环氧树脂结构和性能的影响

Research progress of H₂O₂ oxidation in purifying coal-fired flue gas

ZHAO Yi,HAN Yuhong,WANG Han

2016, 36(6):  614-619.  DOI: 10.3969/j.issn.1000-1565.2016.06.008

Asbtract ( 455 )  

References | Related Articles | Metrics

Gaseous pollutants emitted from coal combustion are very harmful to environment and human health.As a green oxidant,H₂O₂ has thus received much attention in removing pollutants in coal-fired flue gas in recent years.A review of H₂O₂ oxidation technology to remove SO₂,NO and Hg⁰ in flue gas both at home and abroad is briefly summarized,including H₂O₂ oxidation coupling technique,Fenton oxidation and Fenton-like oxidation. The important influencing parameters,removal efficiency and mechanism are discussed.Meanwhile,new techniques such as photocatalysis-Fenton,H₂O₂ gasification and heterogeneous catalytic oxidation in purifying coal-fired fuel gas are introduced.The results provide reference for achieving greater purification efficiency in the field.

First description of the male of Theridion obscuratum Zhu, 1998(Araneae:Theridiidae)

ZHANG Feng,JIN Chi

2016, 36(6):  620-622.  DOI: 10.3969/j.issn.1000-1565.2016.06.009

Asbtract ( 605 )   PDF (775KB) ( 300 )  

References | Related Articles | Metrics

The male of Theridion obscuratum Zhu,1998 is described here for the first time based on specimens collected from Wuyi Mountain,Fujian Province,China.Detailed diagnosis,description and illustrations are presented.

Isolation and identification of Bacillus capable of degrading cellulose from the feces captive giant panda of in north China

WU Hongmin,GUO Wei,GUO Xiaojun,ZHOU Xian,ZHU Baocheng

2016, 36(6):  623-634.  DOI: 10.3969/j.issn.1000-1565.2016.06.010

Asbtract ( 550 )   PDF (1598KB) ( 418 )  

References | Related Articles | Metrics

This study aimed at screening strains of Bacillus sp.capable of degrading cellulose and identifying the species of purpose strains.8 dung samples of giant panda were treated in water bath at high temperature.Congo red decolorizing ring method was used to screen the strains before DNS method to test the highest enzyme activity.The results showed that 8 strains of 126 strains isolated in dung of giant panda had highly efficient cellulose-degrading capability.Through morphological,physiological and biochemical analysis and the sequence analysis of 16S rDNA gene,8 strains were identified.The strains are all Bacillus sp.,including 1 Bacillus subtilis(2N-14),1 B.axarquienis(2N-12),2 B.siamensis(Y-6、Y-10),and 4 B.methylotrophicus(2N-10、2L-9、2L-24、3X-10).The test shows that there were many strains(Bacillus sp.)capable of cellulose degradation in the dung of giant panda.The giant panda-derived B.axarquienis,B.siamensis were isolated and cultivated for the first time,which enriched the research of giant panda intestinal flora and provided new sources of strains for efficient production of cellulose. Exploring the efficiency of- 2016年 河北大学学报(自然科学版) 2016第36卷 第6期 Journal of Hebei University(Natural Science Edition) Vol.36 No.6DOI:10.3969/j.issn.1000-1565.2016.06.010华北地区圈养大熊猫粪便中产纤维素酶芽孢杆菌菌株的分离与鉴定武红敏,郭威,郭晓军,周贤,朱宝成(河北农业大学 生命科学学院,河北 保定 071001)摘 要:为分离筛选大熊猫肠道中具有纤维素降解能力的芽孢杆菌菌株,首先对8份大熊猫粪便进行高温水浴处理,利用刚果红平板法进行初筛和复筛,DNS法测定酶活力.结果分离出126株菌株,其中8株菌株纤维素降解能力较强.结合形态特征、生理生化特征和16S rDNA序列分析,鉴定8个菌株均属于芽孢杆菌属,其中1株枯草芽孢杆菌(Bacillus subtilis),1株阿萨尔基芽孢杆菌(B.axarquienis),2株西姆芽孢杆菌(B.siamensis),4株甲基营养型芽孢杆菌(B.methylotrophicus).实验表明大熊猫肠道中存在多种降解纤维素的芽孢杆菌,其中新发现的有大熊猫源的阿萨尔基芽孢杆菌和西姆芽孢杆菌,丰富了大熊猫肠道菌群的研究,并为高效生产纤维素酶提供新的菌种来源.探究了大熊猫消化道内高效的纤维素降解菌,有利于实现高纤维类饲料资源化利用.关键词:大熊猫;粪便;芽孢杆菌;纤维素酶中图分类号:S858.9 文献标志码:A 文章编号:1000-1565(2016)06-0623-12Isolation and identification of Bacillus capable of degradingcellulose from the feces captive giant panda of in north ChinaWU Hongmin,GUO Wei,GUO Xiaojun,ZHOU Xian,ZHU Baocheng(College of Life Sciences,Agriculture University of Hebei,Baoding 071001,China)Abstract:This study aimed at screening strains of Bacillus sp.capable of degrading cellulose and identifying the species of purpose strains.8 dung samples of giant panda were treated in water bath at high temperature.Congo red decolorizing ring method was used to screen the strains before DNS method to test the highest enzyme activity.The results showed that 8 strains of 126 strains isolated in dung of giant panda had highly efficient cellulose-degrading capability.Through morphological,physiological and biochemical analysis and the sequence analysis of 16S rDNA gene,8 strains were identified.The strains are all Bacillus sp.,including 1 Bacillus subtilis(2N-14),1 B.axarquienis(2N-12),2 B.siamensis(Y-6、Y-10),and 4 B.methylotrophicus(2N-10、2L-9、2L-24、3X-10).The test shows that there were many strains(Bacillus sp.)capable of cellulose degradation in the dung of giant panda.The giant panda-derived B.axarquienis,B.siamensis were isolated and cultivated for the first time,which enriched the research of giant panda intestinal flora and provided new sources of strains for efficient production of cellulose. Exploring the efficiency of- 收稿日期:2015-12-22 基金项目:河北省科技计划项目(12236606);保定市科学研究与发展计划项目(15ZN017) 第一作者:武红敏(1990—),女,河北藁城人,河北农业大学在读硕士研究生.E-mail:873659445@qq.com 通信作者:朱宝成(1962—),男,河北沧州人,河北农业大学教授,博士生导师,主要从事农牧微生物应用技术研究. E-mail:zhu2222@126.com河北大学学报(自然科学版) 第36卷第6期武红敏等:华北地区圈养大熊猫粪便中产纤维素酶芽孢杆菌菌株的分离与鉴定cellulose degradation bacteria in the digestive tract of panda is beneficial for the resource utilization of high fiber feed.

Insecticidal acticity of the botanical extracts from 5 Chinese herbs against phorid flies

WANG Qian,SHI Congying,ZHANG Zheng,HUANG Zipiao,SONG Qian

2016, 36(6):  635-640.  DOI: 10.3969/j.issn.1000-1565.2016.06.011

Asbtract ( 532 )   PDF (428KB) ( 302 )  

References | Related Articles | Metrics

Using the residue method,with water as the negative control,we measured the insecticidal acticity of the botanical extracts from 5 Chinese herbs against phorid flies.The results showed that in the selected five concentrations,the insecticidal activity of Stemona japonica and Sophora flavescens is significant,under 50 mg/mL mass concentration,12 h after treatment,the insecticidal activity were 85.00%,81.67%,after 24 h,reached 100.00%.Melia toosendan、Gentiana scabra,Phryma leptostachya,take second place.Through LC₅₀ determination,the results showed that the 24 h LC₅₀ of St.japonica and So.flavescens were 13.790 mg/mL and 18.668 mg/mL.Field control effect test showed that the extract of St.japonica and So.flavescens has good efficacy against phorid flies,the control effect is 73.66% and 71.27% after three days,around 75.00% after 7 days,compared with clear water control.We recommend in production to use 50 mg/mL St.japonica and 75 mg/mL So.flavescens alternatively, at the beginning of the phorid flies season.

Preventive effects and mechanisms of different vessels fermented Shuidouchi on constipation

FENG Xia,ZHAO Xin

2016, 36(6):  641-649.  DOI: 10.3969/j.issn.1000-1565.2016.06.012

Asbtract ( 565 )   PDF (998KB) ( 305 )  

References | Related Articles | Metrics

The preventive effects and mechanisms of different vessels fermented Shuidouchi ethanol extract on activated carbon induced constipation were researched.After the mice being treated with different vessels fermented Shuidouchi by lavage,it was found that the body weight of control group(activated carbon induced- DOI:10.3969/j.issn.1000-1565.2016.06.012不同容器发酵水豆豉对便秘的防治效果及机制冯霞^1,2,3,4,赵欣^1,2,3,4(1.重庆第二师范学院 重庆市功能性食品协同创新中心,重庆 400067;2.重庆第二师范学院 重庆市功能性食品工程技术研究中心,重庆 400067;3.重庆第二师范学院 功能性食品研发重庆市工程实验室,重庆 400067;4.重庆第二师范学院 生物与化学工程系,重庆 400067)摘 要:对不同容器发酵水豆豉乙醇提取物的便秘预防效果及作用机制进行了研究.对活性炭诱导便秘的小鼠灌胃不同容器发酵水豆豉提取物后发现对照组(活性炭诱导便秘)小鼠的体重下降最多,活性炭在小肠中的推进率最低,排出首粒黑便的时间也最长;相比于对照组玻璃容器发酵水豆豉(GVFS)提取物可以缓解便秘小鼠的体重下降,提高活性炭的推进率和减少排出首粒黑便时间.同时相对于对照组,GVFS可以提高小鼠血清MTL、Gas、ET、AchE、SP、VIP的水平和降低SS水平,且对这些血清水平的影响显著强于陶瓷容器发酵水豆豉(CVFS)提取物和塑料容器发酵水豆豉(PVFS)提取物.RT-PCR实验结果显示GVFS组小鼠的c-Kit、SCF、GDNF mRNA表达高于PVFS、CVFS组和对照组,而TRPV1、NOS表达仅高于正常组.由此可见,水豆豉具有良好的便秘预防效果,且玻璃容器发酵提取物能够使水豆豉具有更好的效果,主要原因可能是由于GVFS含有较高含量的大豆异黄酮.关键词:水豆豉;容器;便秘;活性炭;小鼠中图分类号:TS201.4 文献标志码:A 文章编号:1000-1565(2016)06-0641-09Preventive effects and mechanisms of different vessels fermented Shuidouchi on constipationFENG Xia^1,2,3,4,ZHAO Xin^1,2,3,4(1.Chongqing Collaborative Innovation Center for Functional Food,Chongqing University of Education,Chongqing 400067,China; 2.Chongqing Engineering Research Center of Functional Food,Chongqing University of Education,Chongqing 400067,China; 3.Chongqing Engineering Laboratory for Research and Development of Functional Food,Chongqing University of Education,Chongqing 400067,China; 4.Department of Biological and Chemical Engineering,Chongqing University of Education,Chongqing 400067,China )Abstract:The preventive effects and mechanisms of different vessels fermented Shuidouchi ethanol extract on activated carbon induced constipation were researched.After the mice being treated with different vessels fermented Shuidouchi by lavage,it was found that the body weight of control group(activated carbon induced- 收稿日期:2016-05-01 基金项目:重庆市工程技术研究中心建设项目(cstc2015yfpt_gcjsyjzx0027);重庆高校创新团队建设计划项目(CXTDX201601040) 第一作者:冯霞(1976—),女,江西宜春人,重庆第二师范学院副教授,主要从事食品营养和功能性食品的研究.E-mail:fengxiacqec@126.com 通信作者:赵欣(1981—),男,重庆人,蒙古族,重庆第二师范学院教授,博士,主要从事食品营养和功能性食品的研究.E-mail:zhaoxin@cque.edu.cn第6期冯 霞等:不同容器发酵水豆豉对便秘的防治效果及机制constipation)mice lost weight the most,the gastrointestinal transit rate was lowest,and the first black stool defecation time was longest.The glass vessel fermented Shuidouchi(GVFS)extract could inhibit the mice body weight lost,increase the gastrointestinal transit rate and decrease the first black stool defecation time compared to the control group.Meanwhile,GVFS could raise the mice serum MTL,Gas,ET,AchE,SP,VIP levels and reduce SS level compared to the control group,and these changes of serum levels were significantly stronger than ceramic vessel fermented Shuidouchi(CVFS)and plastic vessel fermented Shuidouchi(PVFS).By the RT-PCR experiment,the results showed that the c-Kit,SCF,GDNF mRNA expressions of GVFS group mice were higher than those of PVFS,CVFS group mice and control group mice,and TRPV1,NOS expressions of GVFS group mice were only higher than the normal group.From these results,Shuidouchi has favorable constipation preventive effects,and the glass vessel fermentation could make the Shuidouchi have better effects,and the main reason might be that GVFS contained high content of soybean isoflavone.

Experimental comparison of two acceleration approaches for K-nearest neighbors

ZHAI Junhai,WANG Tingting,ZHANG Mingyang,WANG Yaoda,LIU Mingming

2016, 36(6):  650-656.  DOI: 10.3969/j.issn.1000-1565.2016.06.013

Asbtract ( 480 )   PDF (526KB) ( 353 )  

References | Related Articles | Metrics

K-NN(K-nearest neighbors)is a famous data mining algorithm with wide range of applications.The idea of K-NN is simple and it is easy to implement. Both computational time and space complexity of K-NN are all O(n),where,n is the number of instances in a training set.When K-NN encountered larger training sets,especially faced with big data sets,the efficiency of K-NN becomes very low,even K-NN is impracticable.Two acceleration approaches for K-nearest neighbors are experimentally compared on 8 data sets.The two acceleration approaches are the CNN and MapReduce based K-NN.Specifically,in Hadoop environment,this paper implements K-NN with MapReduce,and experimentally compares with CNN on 8 data sets. Some valuable conclusions are obtained,and may be useful for researchers in related fields.

Prediction of the risk of offenders based on big data

MA Guofu,WANG Zixian,MA Shengli

2016, 36(6):  657-666.  DOI: 10.3969/j.issn.1000-1565.2016.06.014

Asbtract ( 641 )   PDF (958KB) ( 804 )  

References | Related Articles | Metrics

Based on the analysis of current status of offenders recidivism prediction and risk assessment,we proposed an architecture system of identification and prediction of the risk of offenders based on big data.Aiming at different value density and different data types,in the model layer of the system,we described application algorithm of identification and prediction of offenders risk for the statistical model,outlier detection model,integrated classification model of architecture system. In particular,using R software package,we conducted integrated classification identification and prediction experiments,and gives the classification prediction error.The architecture system of identification and prediction of the risk of offenders is based on big data,can realize personalized and accurate early warning for offenders risk,and provide a reliable guarantee for the safety of offenders supervision in the big data era.

An approach to achieve color image super resolution based on space conversion

ZHAO Hong,CHANG Zhuo,YANG Gang

2016, 36(6):  667-672.  DOI: 10.3969/j.issn.1000-1565.2016.06.015

Asbtract ( 492 )   PDF (600KB) ( 287 )  

References | Related Articles | Metrics

Three channels of color image have a close correlation.Super resolution in the RGB space is easy to break the relevance and cause artifacts.However,there is a little relevance between three channels in the lαβ color space.In this paper,a new approach to achieve color image super resolution is presented,which used the concept of space conversion. Super resolution is performed separately in the lαβ channels.The experimental results demonstrate that the approach is effective and will minimally break the relevance between the color channels.