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Screening on oil-decomposing microorganisms and application in organic waste treatment machine

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Journal of Environmental Sciences 2005年第3期17卷 440-444页

作者： LUYi-tong CHENXiao-bin ZHOUPei LIZhen-hong DepartmentofResourcesandEnvironmentalScience ShanghaiJiaotongUniversityShanghai201101China

As an oil-decomposable mixture of two bacteria strains(Bacillus sp. and Pseudomonas sp.), Y3 was isolated after 50 d domestication under the condition that oil was used as the limited carbon source. The decomposing rate by Y3 was higher than that by each separate individual strain, indicating a synergistic effect of the two bacteria. Under the conditions that T=25—40℃,pH=6—8, HRT(Hydraulic retention time)=36 h and the oil concentration at 0.1%, Y3 yielded the highest decomposing rate of 95.7 %. Y3 was also applied in an organic waste treatment machine and a certain rate of activated bacteria was put into the stuffing. A series of tests including humidity, pH, temperature, C/N rate and oil percentage of the stuffing were carried out to check the efficacy of oil-decomposition. Results showed that the oil content of the stuffing with inoculums was only half of that of the control. Furthermore, the bacteria were also beneficial to maintain the stability of the machine operating. Therefore, the bacteria mixture as well as the machines in this study could be very useful for waste treatment.

关键词： oil-decomposing microorganism screening application organic waste treatment machine decomposing rate

A New Coupled KdV Equation： Painlevé Test

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Communications in Theoretical Physics 2006年第6期45卷 965-968页

作者： tong bin JIA Man LOU Sen-Yue Department of Physics Shanghai Jiao Tong University Shanghai 200030 China Department of Physics Ningbo University Ningbo 315211 China

A new type of coupled Korteweg de-Vries equation is found to be Painlevé-integrable. The new model is a special case which can be used to describe two-layer fluids with different dispersion relations.

关键词： coupled KdV equation dispersion relations integrability

Crystallization, Mechanical and Flame-retardant Properties of Poly(lactic acid) Composites with DOPO and DOPO-POSS

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Chinese Journal of Polymer Science 2018年第7期36卷 871-879页

作者： Lin Jia Wen-Chao Zhang bin tong Rong-Jie Yang National Engineering Research Center of Flame Retardant Materials School of Materials Science and Engineering Beijing Institute of Technology

Poly（lactic acid）（PLA） composites with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide （DOPO） and DOPO- containing polyhedral oligomeric silsesquioxane （DOPO-POSS） were prepared via melting extrusion and injection molding. The crystallization, mechanical, and flame-retardant properties of PLA/DOPO and PLA/DOPO-POSS were investigated by differential scanning calorimetry （DSC）, X-ray diffraction （XRD）, tensile testing, thermogravimetric analysis （TGA）, limiting oxygen index （LOI）, and cone calorimeter test. The DSC results showed that the DOPO added could act as a plasticizer as reflected by lower glass transition temperature and inhibited crystallization of part of the PLA; the DOPO-POSS acted like a filler in the PLA matrix and slightly improved the crystallinity of the PLA matrix. The XRD and DSC analyses indicated that the PLA composites by cold molding injection were amorphous, and the PLA composites following a heat treatment in an oven at 120 ℃for 30 min achieved crystallinity. All the PLA and its composites after heat treatment had improved mechanical properties. The thermogravimetric analysis （TGA） tests showed that the PLA, DOPO and DOPO-POSS decomposed separately in the PLA/DOPO and PLA/DOPO-POSS, respectively. The cone calorimeter tests offered clear evidence that addition of the DOPO-POSS resulted in an evident reduction of 25% for the peak of heat release rate （p-HRR）. It was also confirmed that the crystalline flame-retardant PLA composites after heat treatment had better flame retardant properties than the amorphous PLA composites prepared by the cold molding.

关键词： Poly(lactic acid) DOPO-POSS Crystallization Mechanical property Flame retardancy

Ambient air temperature effects on the temperature of sewage sludge composting process

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Journal of Environmental Sciences 2005年第6期17卷 1004-1007页

作者： HUANG Qi-fei CHEN tong-bin GAO Ding HUANG Ze-chun Chinese Research Academy of Environmental Sciences Beijing 100012 China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China

Using data obtained with a full-scale sewage sludge composting facility, this paper studied the effects of ambient air temperature on the composting temperature with varying volume ratios of sewage sludge and recycled compost to bulking agent. Two volume ratios were examined experimentally, 1 ： 0 ： 1 and 3 ： 1 ： 2. The results show that composting temperature was influenced by ambient air temperature and the influence was more significant when composting was in the temperature rising process： composting temperature changed 2.4-6.5℃ when ambient air temperature changed 13℃. On the other hand, the influence was not significant when composting was in the high-temperature and/or temperature falling process： composting temperature changed 0.75-1.3℃ when ambient air temperature changed 8-15℃. Hysteresis effect was observed in composting temperature＇s responses to ambient air temperature. When the ventilation capability of pile was excellent（at a volume ratio of 1：0：1）, the hysteresis time was short and ranging 1.1-1.2 h. On the contrary, when the proportion of added bulking agent was low, therefore less porosity in the substrate（at a volume ratio of 3：1：2）, the hysteresis time was IonQ and ranging 1.9-3.1 h.

关键词： sewage sludge composting ambient air temperature hysteresis

Expression levels of GSTA2 and APOD genes might be associated with carotenoid coloration in golden pheasant(Chrysolophus pictus) plumage

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Zoological Research 2016年第3期37卷 144-150页

作者： Guang-Qi GAO Li-Shuang SONG bin tong Guang-Peng LI Research Center for Laboratory of Animal Science Inner Mongolia University

Carotenoids, which generate yellow, orange, and red colors, are crucial pigments in avian plumage. Investigations into genes associated with carotenoid- based coloration in avian species are important; however, such research is difficult because carotenoids cannot be synthetized in vertebrates as they are only derived from dietary sources. Here, the golden pheasant （Chrysolophus pictus） was used as a model in analysis of candidate gene expression profiles implicated in carotenoid binding and deposition. Using mass and Raman spectrometry to confirm the presence of carotenoids in golden pheasant feathers, we found C40H540 and C40H5602 in feathers with yellow to red colors, and in the rachis of iridescent feathers. The global gene expression profiles in golden pheasant skins were analyzed by RNA-seq and all six carotenoid binding candidate genes sequenced were studied by real- time PCR. STAR4, GSTA2, Scarbl, and APOD in feather follicles showed different expressions in red breast and orange nape feathers compared with that of iridescent mantle feathers. Further comparison of golden pheasant yellow rump and Lady Amherst＇s pheasant （Chrysolophus amherstiae） white nape feathers suggested that GSTA2 and APOD played a potential role in carotenoid-based coloration in golden pheasant.

关键词： Expression Carotenoid coloration Candidate genes Golden pheasant Feather

An AIEE polyelectrolyte as a light-up fluorescent probe for heparin sensing in full detection range

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Science China Chemistry 2013年第9期56卷 1239-1246页

作者： CHEN DongYang SHI Jianbing WU YanMei tong bin ZHI JunGe DONG YuPing School of Materials Science and Engineering Beijing Institute of Technology School of Chemistry Beijing Institute of Technology

Polyelectrolyte PTPEPyH, containing tetraphenylethene (TPE) and pyridinium, was synthesized. Its optical properties were investigated with spectroscopies and the results showed that there were two emission-enhanced stages in the interaction between positive-charged PTPEPyH and negative-charged biomacromolecule heparin. The mechanism was very different due to the reduced non-radiative energy loss and the change of surroundings. The polyelectrolyte PTPEPyH, compared with ChS and HA, also showed high selectivity for heparin in the buffer solution and could be used as a potential bio-probe for heparin quantification in the clinical full range.

关键词： aggregation-induced emission enhancement (AIEE) tetraphenylethene (TPE) heparin quantification pyridinium biosensor

Preparation and Chiral Selectivity of BSA-Modified Ceramic Membrane

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Chinese Chemical Letters 2006年第5期17卷 649-652页

作者： Cai Lian SU Rong Ji DAI bin tong Yu Lin DENG School of Life Science and Technology Beijing Institute of Technology Beijing 100081 School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081

An affinity-transport system, containing porous ceramic membranes bound with bovine serum albumin （BSA） was used for chiral separation of racemic tryptophan. The preparation of BSA modified ceramic membrane included three steps. Firstly, the membrane was modified with amino group using silanization with an amino silane. Secondly, the amino group modified membrane was bound with aldehyde group using gluteraldehyde. Finally, BSA was covalently bound on the surface of the ceramic membrane. Efficient separation of racemic tryptophan was carded out by performing permeation cell experiments, with BSA modified, porous ceramic membranes.

关键词： Ceramic membrane chiral separation bovine serum albumin.

Establishment of a nonradioactive assay for 2′5′oligoadenylate synthetase and its application in chronic hepatitis C patients receiving interferon-α

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World Journal of Gastroenterology 1998年第1期4卷 75-78页

作者： tong Wen-bin ZHANG Chun-Ying FENG Bai-Fang TAO Qi-Min Institute of Hepatology People's Hospital Beijing Medical University Beijing 100044 China Dept. Gastrointest. and Liver Dis. USC School of Medicine Los Angeles CA 90033 1975 Zonal Avenue United States Department of Laboratory Medicine Beijing Medical University China Institute of Hepatology People's Hospital Beijing Medical University China

IM To establish a nonradioactive assay for 2′5′ oligoadenylate synthetase (25 AS) and to measure the 25AS in peripheral blood mononuclear cell (PBMC) extracts of patients with chronic hepatitis C before IFNα injection, 24 hours and one month after the first injection.METHODS 25AS in cell extracts of PBMCs from 10 normal persons and 15 chronic hepatitis C patients were determined with PEI cellulose thinlayer chromatography.RESULTS The assay of 25AS in human PBMC was found to be rapid, sensitive, specific and reliable. The 25AS activity of PBMC in normal persons was in a quite low level (20%), and it was increased about tenfolds after stimulation of IFN (197%), (P<001). In 15 chronic hepatitic C patients, the basal levels of 25AS before IFN treatment were higher than those of normal persons, being much higher in the group showing poor response to IFN treatment, but 24h after the first injection of IFNα the 25AS level showed a more rapid and much greater rise in those patients with a good response.CONCLUSION 25AS may be a useful parameter of biological response during the IFN therapy..

关键词： 2′5′oligoadenylate synthetase/analysis interferon-alpha chromatography,thin layer hepatitis C/enzymes

Morphology of irradiated PMMA membranes prepared by phase inversion with supercritical CO_2

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Nuclear Science and Techniques 2013年第6期24卷 36-42页

作者： TANG Zhongfeng CHEN Youshuang QIU Guangnan tong bin LI Hua TANG Xiaoxing KONG Xiangbo Shanghai Institute of Applied Physics Chinese Academy of Sciences Key Lab of Nuclear Radiation and Nuclear Energy Technology Chinese Academy of Sciences College of Biological and Chemical Engineering Guangxi University of Science and Technology Shenzhen Changyuan Electronics Materials Co. Ltd

Poly(methyl methacrylate)(PMMA)pellets are irradiated using 60Co gamma-ray in air and successfully formed by hot pressing at constant *** irradiated PMMA membranes are prepared by supercritical carbon dioxide(scCO2)as a physical blowing agent using the pressure quench *** of foaming conditions such as adsorbed dose,saturation temperature,pressure on the morphology and cell size of the microcellular PMMA membranes are investigated in *** results showed that the irradiated PMMA membranes possess spherically closed-cell structure with uniform cell *** have a high cell density compared with virgin *** cell size uniformity becomes poor at dose lower than 10 kGy,but increases with the dose at dose higher than 10 *** mean cell diameter is less than 10μm and the cell density increases with increasing *** average cell size of irradiated PMMA membranes decreases and cell density increases with increased saturation temperature and *** changes in morphology of membranes are attributed to the gamma-ray radiation and scCO2synergistic effect.

关键词： PMMA 超临界CO2 制备聚(甲基丙烯酸甲酯) 超临界二氧化碳相转化聚甲基丙烯酸甲酯膜