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Current Issue
       Volume 35 Issue 3, 25 March 2018 Previous Issue   Next Issue
    For Selected: View Abstracts Toggle Thumbnails
    Optimization for Soxhlet Extraction of Total Flavonoids from Eggplant Root by Using Response Surface Methodology   Collect
    WANG Ya-hong, JIA Ying-chao
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 1-6.   doi:10.16039/j.cnki.cn22-1249.2018.03.001
    Abstract     PDF(399KB)
    Response surface methodology was applied to optimize the soxhlet extraction of total flavonoids from
    eggplant root． The optimum particle size 50mu of eggplant root powder was determined by the relationship
    between the pretreatment and extraction rate of eggplant root． Thanol concentration    ， extraction time and the
    amount of solvent were selected as the investigation factors and the yield of total flavonoids was used as the
    response values．On the basis of single factor experiment    ，the extraction process of total flavonoids was optimized
    by using the response surface methodology．Experiment result showed that the ptimum extraction technology was
    determined as follows    : ethanol concentration 42%，extraction time 3．5h，the amount of solvent 26ml / g，powder
    mesh of 50．Under the optimum extraction conditions    ，the predictive and experimental values of total flavonoids
    from eggplant root were 0．424% and 0．425%    ，respectively，the relative error between themwas 0．24%．
    Related Articles | Metrics
    Research Progress on Extraction Technology and Component Analysis of Volatile Flavor Compounds in Plants   Collect
    PAN Hong-wei, ZHOU Hong-li
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 7-10.   doi:10.16039/j.cnki.cn22-1249.2018.03.002
    Abstract     PDF(191KB)
    In this paper， some usual methods of extractions of volatile flavor compounds from plants were
    introduced    ， mainly including hydrodistillation extraction，solvent extraction，simultaneous distillation extraction，
    supercritical fluid extraction， ultrasound-assisted extraction， solid-phase micro extraction， and the extracted
    components were analyzed separately．
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    Analysis of Pressure Sealing Technology Research   Collect
    YAN Zhen-han, CHEN Qing
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 11-14.   doi:10.16039/j.cnki.cn22-1249.2018.03.003
    Abstract     PDF(281KB)
    The principle of pressure sealing technology is briefly summarized through understanding of the
    technical definition of pressure sealing．The research mainly includes the premise of pressure sealing and the
    classification of pressure sealing． In this paper    ， three common pressure sealing techniques are introduced:
    injection pressure sealing， bonding technology with pressure packing and strong tape seal technology． The
    principle    ， composition and characteristics of three technologies are introduced respectively． In order to
    enumerate two innovative research results    ， this paper expounds the significance of pressure-sealing technology
    in engineering practice．
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    Research on the Piezoelectric Pump Application in Continuous Ink Supply System of the Inkjet Printer   Collect
    SUN Xiao-feng, YU Wen-xin, ZHU Ming-wei, JIE Meng, JIANG De-lon
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 15-18.   doi:10.16039/j.cnki.cn22-1249.2018.03.004
    Abstract     PDF(264KB)
    In order to solve the problems of backflow ink in inner cartridges to external cartridges and ink
    drying blocked pipeline if never used in the inkjet printer with continuous ink supply system    ， the micro
    piezoelectric pump with valve installed in the pipeline for the system    ， and performance of the piezoelectric
    pump were tested．The test results showed that    : maximum output flow rate of the piezoelectric pump up to 8
    mL /min    －1 in the continuous ink pipeline for device， the maximum output pressure can reach 1． 1 kPa;
    piezoelectric pump reverse cut-off pressure is 65 cmH2O， the minimum self-priming height can reach 70
    cmH
    2O．The above test results show that the piezoelectric pump has structure design of small size， good
    performance    ，the problems of continuous ink supply system can be completely solved after installation．
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    New Technology of Compound Rare Earth Salt Conversion on Copper Alloy Surface   Collect
    LV Xue-fei, LIU Shuang, GAN Shu-kun
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 19-22.   doi:10.16039/j.cnki.cn22-1249.2018.03.005
    Abstract     PDF(246KB)
    In this paper，the new technology of composite rare earth passivation of copper alloy was obtained by
    orthogonal test．The surface of passivated sample was characterized by scanning electron microscopy．The new
    technology was evaluated by nitric acid drip method．The results show that the copper alloy treated with the new
    composite rare earth has good corrosion resistance．
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    Mechanical Structure Design of the Chocolate 3D Printer   Collect
    SONG Qi, LIU Peng, CHEN X, LIU Tong
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 23-26.   doi:10.16039/j.cnki.cn22-1249.2018.03.006
    Abstract     PDF(251KB)
    The chocolate 3D printing technology has been researched in this paper．We focus on the chocolate
    continue filling and the printing accuracy    ，a high-precision chocolate 3D printer with continue filling system has
    been designed．The Descartes coordinates system was applied in the injector controlling to improve the printing
    accuracy．Moreover    ， a rolling screw was used instead of the piston in the extruding system to the keep the
    continuous printing    ， and the heating system was added to the injector and the feeding box to control the
    temperature of the chocolate．
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    Design and Modal Analysis of Ozone Disinfection Cleaning Machine for Fruits and Vegetables   Collect
    HAN Jie, WANG Kai-bao, ZHOU Zhen-qiang, LIU Yu-li, SONG Chun-lei, QIN Qing-kun
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 27-30.   doi:10.16039/j.cnki.cn22-1249.2018.03.007
    Abstract     PDF(286KB)
    According to the ozone disinfection method， a new kind of ozone disinfection method is developed．
    Implements of fruits and vegetables disinfection and cleaning    ， through electronic type of ozone generator to
    produce    ，and transport it to sink in， make the ozone fully contact with the fruit and vegetable， finally realizes
    the efficient cleaning．This product is suitable for the family use and refit    ， and can also be used in restaurants
    and hotels．
    Related Articles | Metrics
    Analysis of the Design and Dynamic Characteristics of Recyclable Garbage Crushing Device   Collect
    ZHOU Zhen-qiang, WANG Kai-bao, CHEN Yu-tian, HAN Ji, HOU Dai-bing, GUO Wen-qi
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 31-35.   doi:10.16039/j.cnki.cn22-1249.2018.03.008
    Abstract     PDF(398KB)
    the design of a kind of applicable to a variety of waste material of broken， meet the needs of a
    variety of garbage crushing recycled garbage crusher．This study for recyclable garbage crushing device as a
    whole structure design    ，and put forward for the first time use of tertiary crushing system for garbage crushing
    design    ，solve the traditional crushing waste less species，and implements the recyclable garbage broken．
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    Experimental Study on Pneumatic Space Bending Flexible Joint   Collect
    LIU Hong-bo, LIU Qi
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 36-39.   doi:10.16039/j.cnki.cn22-1249.2018.03.009
    Abstract     PDF(363KB)
    In this paper， we develop a new type pneumatic space bending flexible joint， which are mainly
    composed of elastic rubber tube and constrain components． The joint is equivalent to three artificial muscle
    connected in parallel    ，which has three degrees of freedom．The joint can elongate in axial direction and bend
    arbitrarily in space when supplied the air pressure．The axial elongation and space bending of the joint has been
    done by the experimental device and the relationship deformation of joint and air pressure is required．The study
    of this paper laid the foundation for further application of the joint．
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    The Structural Design and Parameter Analysis of the Chair Structure of Quadriplegia of Cerebral Palsy   Collect
    ZHU Qi-rui, ZHANG Yu-feng, LI Yang-xin, WU Dong-jun, BI Shuai-nan, ZHOU Rui-jie, YOU Sai-sai
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 40-44.   doi:10.16039/j.cnki.cn22-1249.2018.03.010
    Abstract     PDF(429KB)
    In this paper， according to the basic demand of cerebral palsy children ＇ s limbs rehabilitation
    training    ，design a set of can be aided auxiliary standing， walking and eating a variety of rehabilitation training
    functions such as institution．According to the principle of this modular design has developed a training to assist
    children with cerebral palsy rehabilitation of multi－functional chair limbs rehabilitation training．Through a series of theoretical analysis    ，the design parameters of the various structures of the quadriplegia of cerebral palsy
    were determined．
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    Research on the Design of Coastal Beach Cleaning Vehicles   Collect
    WU Dong-jun, ZHANG Yu-feng, ZHOU Rui-jie, LIU Hong-liang, ZI Tian-cheng
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 45-47.   doi:10.16039/j.cnki.cn22-1249.2018.03.011
    Abstract     PDF(264KB)
    Focus on environmental pollution problem of the sandy beach， a garbage collector with garbage
    classification ability was designed by the software of Solidworks． The main structure of the garbage collector
    include stander    ， sand shovel mechanism， sand screening mechanism， chain gear transmission mechanism and
    collection device．The garbage on the sand beach can be collected    ，screened and classified by garbage collector．
    Base on the above research    ，a prototype of the garbage collector was produced．
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    Catalytic Performance of Sulfonic Acid Resins on the Transalkylation of Dinonylphenol with Phenol   Collect
    JIANG Di, QIN Ti-zhi, HAN Ming-xuan, ZHANG Zhi-hui, ZHANG Yu
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 48-51.   doi:10.16039/j.cnki.cn22-1249.2018.03.012
    Abstract     PDF(238KB)
    The transalkylation of dinonylphenol with phenol was carried out using a batch reactor with sulfonie
    acid io-exchange polystyrene resin as catalysts．The composition and mechanical properties of sulfonated resin
    were characterized by FTIR and particle strength test． Results show that the optimal reaction condition is as
    follows    : reaction temperature，150～ 155 ℃ ; phenol: nonylphenol ( molar ratio) ，10 1; catalyst dosage，10wt%;
    reaction time，3～ 3．5 h．In this case，the conversion of dinonylphenol is above 90% and the yield of nonylphenol
    is above 70%．By this process    ，dinonylphenol，the by-product of nonylphenol industry process，could be utilized
    effectively．The economic benefits of the nonylphenol industry device would be improved．
    Related Articles | Metrics
    Preparation and Study of Nano-crystal Doped with Rare Earth Ions   Collect
    SU Ji-yi, QU Ming-lei, MA Hong-tu
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 52-57.   doi:10.16039/j.cnki.cn22-1249.2018.03.013
    Abstract     PDF(455KB)
    In this paper，BaWO4 powders with ideal luminescence properties were synthesized by hydrothermal
    method    ，using polyethylene glycol as a complexing agent．The effects of pH， reaction temperature and reaction
    time on synthesis of samples were studied．Parallel tests were used to observe the differences．The results were
    used to determine the best method．The products are characterized by X－ray diffraction and scanning electron
    microscope．The results show that the luminous intensity is best when the pH = 9    ， T = 200 ℃ ， and time is 12
    hours    ，concentration ratio of Yb3+ /Tm3+ is 7 1，doping concentration of Tm3+ ions is 1．0mol%．
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    Preparation and Characterization of Er3+，Y3+，Yb3+ Co-doped Al2O3 Luminescence Materials   Collect
    ZHANG Yun-peng
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 58-63.   doi:10.16039/j.cnki.cn22-1249.2018.03.014
    Abstract     PDF(302KB)
    With the development of optical communications， Light-emitting materials used for the amplifier
    used in optical communication and amplifier requirements more and more and more demanding． In optical
    communication systems    ，due to the structure of the rare earth-doped fiber amplifier makes it impossible to be
    integrated    ，people began to consider the development of planar erbium doped waveguide amplifier ( EDWA) ．It
    is use of optical waveguides doped rare earth erbium ions to achieve stimulated emission pumping light under．
    Of Y    3+，Yb3+，and of Er3+ co-doped Al2O3 powders，an attempt to increase of Er3+ in the matrix dispersion and
    uniformity．Reduce the photon quenching centers in the material of the erbium －doped ions concentration    ， to
    study the modulation of different concentrations of Yb    3+ co-doped material microstructure． And luminescent
    properties of Al    2O3 were investigated， in order to obtain excellent performance of the alumina
    luminous materials．
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    Proof of the Manifold of n Manifold   Collect
    MI Ya-wei
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 64-66.   doi:10.16039/j.cnki.cn22-1249.2018.03.015
    Abstract     PDF(161KB)
    In differential geometry， we learned that what is product manifold．Most product manifold theorem
    proved only two differential manifold product manifold． So for n differential manifold    ， whether also can prove
    that their product manifold article proves the product n differential manifold theorem of the manifold．
    Related Articles | Metrics
    The Lower Bounds of Energy for Some Circulant Graph   Collect
    XU You-zhuan, ZHOU Hou-qing
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 67-72.   doi:10.16039/j.cnki.cn22-1249.2018.03.016
    Abstract     PDF(249KB)
    The energy of a graph G is the sum of the absolute values of the eigenvalues of the adjacency matrix of
    G． In this paper    ，using formula of circulant matrix eigenvalue and the inequality technique，we discuss some lower
    bounds of energy for some circulant graph    ，and extend the conclusion in some literatures．
    Related Articles | Metrics
    Selection and Application of DC LED Driver   Collect
    SUN Jing-yang
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 73-77.   doi:10.16039/j.cnki.cn22-1249.2018.03.017
    Abstract     PDF(253KB)
    LED as the twenty-first century green lighting source has been widely concerned， its luminous
    principle is different from the traditional light source    ，DC LED using DC drive light，the traditional light source
    is AC drive light    ，if the LED driver circuit fails，then the LED light source cannot be normal light，therefore，the
    driving circuit of the DC LED light source is of vital importance to the overall life of the lamp．This paper first
    describes the principle of LED light source and LED volt －ampere characteristics    ， on the low voltage， weak
    current drive circuit described    ， explain the difference between constant voltage drive and constant current
    drive    ，analysis of several common LED light source drive circuit， introduce the selection and application of
    several driving circuits on different kinds of light sources．In conclusion    ，suitable and reasonable drive circuit，
    the cost of LED light source，life is a very important part．
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    Development on Database of Rubber Bladder Forming Process Parameters   Collect
    ZHANG Peng
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 78-82.   doi:10.16039/j.cnki.cn22-1249.2018.03.018
    Abstract     PDF(374KB)
    In order to store the process parameters and related information applied to the rubber bladder
    forming sheet    ，applying Access 2007 and Visual Basic 6．0 to develop database．Access 2007 is used to store
    relevant data    ，Visual Basic 6．0 is applied for developing，operating，managing，and is used as a visual interface．
    The database developed is set different levels    ， and given a certain authority．Administrators can retrieve， add，
    delete，save to the database， while the average user has only the operational privileges of the query． The
    database can provide reliable basic information for the precise design of related molds and the development of
    forming process    ，which can replace some materials manual，process manual，and make up the deficiency in the
    manual．
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    Internet +720° Panoramic Image Display Platform Design and Implementation   Collect
    BAI Xue, BAI Yong-guo, DING Wen-hao
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 83-86.   doi:10.16039/j.cnki.cn22-1249.2018.03.019
    Abstract     PDF(556KB)
    In the " Internet +" and the era of big data， combined the panoramic image technology with the
    students＇ real life    ，and introduced design and implement the Internet +720° panoramic image display platform
    concept and put into practice    ， which not only is a test to the students ＇ innovative entrepreneurial practice
    ability    ，but also to improve the students＇ quality of innovation and entrepreneurship．It is a certain extent also
    provides rich innovative and entrepreneurial practice inside and outside the schools．Furthermore    ，in this way，it
    accumulates the experiences．
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    Geochemical Characteristics and Geological Significance of the Mudstone of the Coal Bearing Rock Series in the Gujiao Mining Area of Shanxi Province   Collect
    ZHANG Hai-tao
    Journal of Jilin Institute of Chemical Technology, 2018, 35(3): 87-90.   doi:10.16039/j.cnki.cn22-1249.2018.03.020
    Abstract     PDF(230KB)
    Gujiao coal mining area is rich in coal resources．To identify the element parameters， sedimentary
    environment and source of sediments in this area    ，not only can provide information for studying the development
    of geological movement    ，but also guarantee the safe mining of coal mines．According to the Gujiao mining area
    coal bearing strata in the mudstone samples for chemical detection    ， the research showed that the high field
    strength elements and trace elements in the study area and lithophile elements content than the content in the
    upper crust    ，and close to the pro content of iron and chalcophile elements and light rare earth elements in the
    crust    ，and are enriched in hree phenomenon in the rare earth elements．According to Sr /Cu， V /( V + Ni) and
    other indicators can be judged at the time of dry climate    ，the overall performance of the transitional sedimentary
    environment reducing anaerobic environment in sedimentary facies    ， and the formation of mudstone source in
    clastic sediments    ，also found that the Shanxi group also contains some granite material，which indicated that the
    provenance of coal the Department should be in the active continental margin and continental contact
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