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Frontiers of Environmental Science & Engineering 2019年第6期13卷 35-43页

作者： Siqi Li min zheng Shuang Wu Yu Xue Yanchen Liu Chengwen Wang Xia Huang State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Advanced Water Management Centre The University of QueenslandSt.Lucia QLD 4072Australia China Academy of Urban Planning&Design Beijing 100084China

The ultrasonic treatment of sludge has been considered as an effective method to facilitate the partial nitritation of municipal *** study aims to reveal the effects of ultrasound on ammoniaoxidizing bacteria(AOB)and nitrite-oxidizing bacteria(NOB).The impact factors including ultrasonic irradiation time and intensity,sludge concentration,thermal effect and released free radicals were *** maximized difference between the changes in AOB and NOB activities were obtained with 10 g mixed liquor suspended solids(MLSS)/L,using 0.9 kJ/mL ultrasonic energy density and 12 h interval *** increased ultrasonic intensity destroyed the floc structure of activated sludge,increased the microbial death,and decreased the cellular ATP ***,the mechanism exploration indicated that the mechanical shearing could be a critical factor in achieving the nitritation with inhibitory effect on nitrite oxidation.

关键词： Ultrasonic treatment Optimal control Nitrifying bacteria Mechanism analysis

Thermodynamics on Sulfur Migration in CaSO4 Oxygen Carrier Reduction by CO

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Chemical Research in Chinese Universities 2017年第6期33卷 979-985页

作者： ZHONG Simei zheng min PU Sixu XING Yanbin LI Kongzhai WANG Hua State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Faculty of Metallurgical and Energy Engineering Faculty of Chemical Engineering Kunming University of Science and Technology Kunming 650093 P. R. China

CaSO4 is an attractive oxygen carrier for chemical looping combustion（CLC） because of its high oxygen capacity and low price. The utilization of a CaSO4 oxygen cartier suffers the problems of sulfur release, and deacti- vation caused by sulfur loss. With respect to the fact that partial sulfur release could be recaptured and then recycled to CaSO4 by CaO sorbent, the mixture of CaSO4-CaO can be treated as an oxygen carrier. Thermodynamics of CaSO4 and CaSO4-CaO reduction by CO have been investigated in this study. The sulfur migrations, including the sulfur migration from CaSO4 to gas phase, mutual transformation of sulfur-derived gases and sulfur migration from gas phase to solid phase, were focused and elucidated. The results show that the releases of S2, S8, COS and CS2 from CaSO4 oxygen carrier are spontaneous, while SO2 can be released at high reaction temperatures above 884 ℃. SO2 is the major emission source of sulfur at low CO/CaSO4 molar ratios, and COS is the major part of the byproducts as soon as the ratio exceeds 4 at 900℃. Under CO atmosphere, all the sulfur-derived gases, SO2, S2, S8 and CS2, involved are thermodynamically favored to be converted into COS substance, and are spontaneously absorbed and solidified by CaO additive just into CaS species, which may be recycled to CaSO4 as oxygen carrier in the air reactor. But high reaction temperatures and high CO2 concentrations are adverse to sulfur capture.

关键词： Chemical looping combustion CO2 separation CaSO4 oxygen carrier Sulfur migration Sulfur capture

Energy consumption pattern and indoor thermal environment of residential building in rural China

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Energy and Built Environment 2020年第3期1卷 327-336页

作者： Baiyi Li Liyao You min zheng Yao Wang Ziguang Wang Faculty of Architecture Southwest Jiaotong UniversitySichuanChina Chengdu Shude High School SichuanChina Sichuan Institute of Building Research SichuanChina

With the continuous deepening of China’s rural construction and development,people’s living conditions are improved day by day,while accompanied by energy and environment crisis *** paper mainly analyzes the energy consumption pattern and the indoor environment of rural households in China and discusses the energy-saving optimization strategies for improving the thermal environment of *** surveys and field surveys were conducted in three villages in Guanghan,*** measurement results show that the annual indoor temperature range of the region in the summer is 15-31℃and the relative humidity range is 34%-96%.The average indoor temperatures in summer and winter are 28℃and 16℃*** indoor thermal environment of rural buildings is usually poor and cannot meet the requirements of Chinese *** the same time,the architectural design and energy consumption pattern of rural households are different from those in urban areas as countryside has unique ***,we put forward certain energy-saving improvement measures at the end of the article.

关键词： Rural residential building Energy Indoor thermal environment Hot summer and cold winter zone China

9-Anthracenecarboxaldehyde Functionalized Second Generation Poly(amidoamine) Dendrimers: Synthesis and Metal Absorption

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Chinese Chemical Letters 2006年第9期17卷 1251-1254页

作者： Xu min HE Wei zheng Pei Xie YANG Hai Ping XIA Department of Materials Science and Technology College of Chemistry and Chemical Engineering Xiamen University Fujian 361005

In this paper we report the peripheral functionalization of amine-terminated second generation poly（amidoamine）（PAMAM） with 9-anthracenecarboxalehyde and the preparation of dendrimer-encapsulated metal salts. The... 详细信息

关键词： Dendrimer PAMAM 9-anthracenecarboxaldehyde metal coordination

Amplitude-Squared Squeezing in a Kerr-Nonlinear Blackbody

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Communications in Theoretical Physics 2007年第5期47卷 933-936页

作者： WU Zi-Xia CHENG Ze ZHANG Yan-min CHENG zheng-Ze Department of Physics Huazhong University of Science and Technology Wuhan 430074 China

We find that amplitude-squared squeezing of the photon field is present in a new blackbody, namely, a Kerr- nonlinear blackbody. The squeezing effect decreases as temperature T increases. The amount of the amplitude-squared squeezing in a Kerr-nonlinear blackbody is much larger than the corresponding squeezing in normal blackbody, and the degree of amplitude-squared squeezing is much larger than the amplitude squeezing for the same range of parameters in a Kerr-nonlinear blackbody.

关键词： Kerr-nonlinear blackbody amplitude-squared squeezing nonpolariton

Evaluation criteria, major types, characteristics and resource prospects of tight oil in China

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Petroleum Research 2016年第1期1卷 1-9页

作者： Chengzao Jia Caineng Zou Jianzhong Li Denghua Li min zheng China National Petroleum Corporation Beijing 100724China Research Institute of Petroleum Exploration and Development Beijing 100083China

Tight oil refers to a petroleum play that occurs in a free or adsorbed state in source rocks or tight reservoir rocks(e.g.,sandstone and carbonate rock)interbedded with or close to source *** oil has generally not experienced large-scale,long-distance *** to such a definition and its characteristics,10 key indices are proposed for tight oil resource evaluation in *** oil reservoirs are divided into three groups in terms of porosity and *** oil can be classified into three types according to the contact relationship between the tight oil reservoirs and source rocks,i.e.,tight lacustrine carbonate oil,tight deep-lake gravity flow sandstones oil,and tight deep-lake deltaic sandstones *** China,tight oil resources are widely distributed and significant exploration discoveries have been achieved in the sixth member and seventh member of the Triassic Yanchang Formation in the Ordos Basin,the Permian Lucaogou Formation in the Junggar Basin,the Middle-Lower Jurassic strata of the Sichuan Basin,and the Cretaceous Qingshankou and Quantou Formations in the Songliao *** total geological resources of tight oil in China assessed by using the“analog”method are estimated to be(10.67-11.15)×10^(9) *** into account of the future prospects of petroleum development,tight oil may become a realistic alternative to the conventional oil resources in China.

关键词： tight oil evaluation criteria classification reservoir characteristics resource potential

Arabidopsis mitochondrial single-stranded DNA-binding proteins SSB1 and SSB2 are essential regulators of mtDNA replication and homologous recombination

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Journal of Integrative Plant Biology 2022年第10期64卷 1952-1965页

作者： Jie Qian min zheng Lingyu Wang Yu Song Jiawen Yan Yi‐Feng Hsu School of Life Sciences Southwest UniversityChongqing 400715China

Faithful DNA replication is one of the most essential processes in almost all living ***,the proteins responsible for organellar DNA replication are still largely unknown in ***,we show that the two mitochondriontargeted single-stranded DNA-binding(SSB)proteins SSB1 and SSB2 directly interact with each other and act as key factors for mitochondrial DNA(mt DNA)maintenance,as their single or double loss-of-function mutants exhibit severe germination delay and growth *** mt DNA levels in mutants lacking SSB1 and/or SSB2 function were two-to four-fold higher than in the wild-type(WT),revealing a negative role for SSB1/2 in regulating mt DNA *** analysis indicated that SSB1 functions upstream of mitochondrial DNA POLYMERASE IA(POLIA)or POLIB in mt DNA replication,as mutation in either gene restored the high mt DNA copy number of the ssb1-1 mutant back to WT *** addition,SSB1 and SSB2 also participate in mitochondrial genome maintenance by influencing mt DNA homologous recombination(HR).Additional genetic analysis suggested that SSB1 functions upstream of ORGANELLAR SINGLE-STRANDED DNABINDING PROTEIN1(OSB1)during mt DNA replication,while SSB1 may act downstream of OSB1and MUTS HOMOLOG1 for mt DNA ***,our results yield new insights into the roles of the plant mitochondrion-targeted SSB proteins and OSB1 in maintaining mt DNA stability via affecting DNA replication and DNA HR.

关键词： Arabidopsis mitochondria mtDNA replication mtDNA recombination SSB

Effect of Lactiplantibacillus plantarum and Saccharomyces cerevisiae fermentation on the multi-scale structure and physicochemical properties

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Food Bioscience 2023年第2期52卷 783-790页

作者： Xiaoqing Xie min zheng Yanan Bai Ziqi Zhang min Zhang Zhifei Chen Xinzhong Hu Juxiu Li College of Food Science and Engineering Northwest A&F University22 Xinong Road Yangling712100ShaanxiPR China Engineering Research Center of Grain and Oil Functionalized Processing Universities of Shaanxi Province22 Xinong Road Yangling712100ShaanxiPR China College of Food Engineering and Nutritional Science Shaanxi Normal UniversityXi’an710119ShaanxiPR China

Modified starch was better suitable for food processing,and fermentation was one of the effective methods to modify *** study investigated the separate and synergistic fermentation of Lactiplantibacillus plantarum and Saccharomyces cerevisiae could whether affect the multi-scale structure and physicochemical properties of highland barley starch(HBS).The results of multi-scale structure determination of HBS showed that compared with unfermented HBS(32.27%),fermentation showed a significant increase in relative crystallinity(35.49-39.81%),while the crystal type of HBS as observed from X-ray diffraction(A-type crystalline pattern)did not *** small angle X-ray scattering revealed that fermentation reduced the amorphous region and increased the crystalline layer thickness of the ***,the changes in the physicochemical properties showed that the peak viscosity,trough viscosity,and final viscosity of HBS were reduced after fermentation,and the aging of starch gel was delayed *** results showed that Lactiplantibacillus plantarum and Saccharomyces cerevisiae fermentations improve the physicochemical properties of HBS by modifying the multi-scale structure of starch,especially the synergistic fermentation effect was more effective.

关键词： Fermentation Highland barley starch Multi-scale structure Physicochemical properties

Natural polypeptides treat pollution complex： Moistureresistant multi-functional protein nanofabrics for sustainable air filtration

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Nano Research 2018年第8期11卷 4265-4277页

作者： Huafeng Tian Xuewei Fu min zheng Yu Wang Yichao Li Aimin Xiang Wei-Hong Zhong School of Material and Mechanical Engineering Beijing Technology and Business University Beijing 100048 China School of Mechanical and Materials Engineering Washington State University Pullman Washington 99164 USA School of Aerospace Engineering Huazhong University of Science and Technology Wuhan 430074 China

Development of ＂green＂ multi-functional air filters with features such as excellent filtration efficiency eco-friendliness, and environmental stability are critically required to address the increasing concerns of polluted air. Natural proteins, such as soy protein and gelatin, are attractive candidates as multi-functional air-filtration materials owing to the rich functional groups; however, these bio-materials are vulnerable to moisture, which limits their broad application in practice. In this work, a hydrophobic protein of zein derived from abundant corn is modified for the first time to produce high-performance nanofilters via electrospinning. The zein nanofabrics are fabricated with the aid of a non-toxic solvent and co-electrospinning agent, poly（ethylene oxide）. The results reveal that the zein-based nanofabrics show high efficiency for the simultaneous removal of particulate matters of different sizes ranging from 0.1 to 10 btm （〉 99.5%） and certain gaseous toxic chemicals （〉 70%）. In addition, the zein nanofabrics show excellent moisture-resistance and good adhesion to the cellulose paper towel used as the air-filter substrate. This study demonstrates that nanofabrics based on hydrophobic natural proteins such as zein are promising materials for developing multi-functional ＂green＂ air filters.

关键词： zein nanofabric multi-functionalair-filtration water-resistant protein air-filter

Adult rhabdomyosarcoma originating in the temporal muscle,invading the skull and meninges:A case report

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World Journal of Clinical Cases 2021年第18期9卷 4866-4872页

作者： Geng-Huan Wang He-Ping Shen zheng-min Chu Jian Shen Department of Neurosurgery The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina Department of Neurology The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina

BACKGROUND Rhabdomyosarcoma(RMS)is a rare malignant tumor of mesenchymal origin that mainly affects *** cell/sclerosing RMS(SSRMS)is even *** is a new subtype that was added to the World Health Organization disease classification in *** the best of our knowledge,this is the first reported case of adult SSRMS disease classification originating in the temporal *** SUMMARY SSRMS originating in the temporal muscle of a male adult enlarged rapidly,destroyed the skull,and invaded the *** tumor was completely removed,and the postoperative pathological diagnosis was *** recovery was good and chemotherapy and radiotherapy were given after the *** up for 3 mo,no tumor *** RMS is one of the differential diagnoses for head soft tissue tumors with shortterm enlargement and skull *** computed tomography or magnetic resonance imaging is necessary for early detection of tumor invasion of the skull and brain tissue.

关键词： Rhabdomyosarcoma Temporal Muscle Skull Dura Mater Adult Case report