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| 1 | Enhanced Poly(ethylene terephthalate)Hydrolase Activity by Protein Engineering显示文摘Poly(ethylene terephthalate)hydrolase(PETase)from Ideonella sakaiensis exhibits a strong ability to degrade poly(ethylene terephthalate)(PET)at room temperature,and is thus regarded as a potential tool to solve the issue of polyester plastic pollution.Therefore,we explored the interaction between PETase and the substrate(a dimer of the PET monomer ethylene terephthalate,2PET),using a model of PETase and its substrate.In this study,we focused on six key residues around the substrate-binding groove in order to create novel high-efficiency PETase mutants through protein engineering.These PETase mutants were designed and tested.The enzymatic activities of the R61A,L88F,and I179F mutants,which were obtained with a rapid cell-free screening system,exhibited 1.4 fold,2.1 fold,and 2.5 fold increases,respectively,in comparison with wild-type PETase.The I179F mutant showed the highest activity,with the degradation rate of a PET film reaching 22.5 mg perμmol·L^-1 PETase per day.Thus,this study has created enhanced artificial PETase enzymes through the rational protein engineering of key hydrophobic sites,and has further illustrated the potential of biodegradable plastics. | Yuan Ma Mingdong Yao Bingzhi Li Mingzhu Ding Bo He Si Chen Xiao Zhou Yingjin Yuan | 2018 | Engineering2018，4，6： | 10 |
| 2 | Engineering feature design for level set based structural optimization 显示文摘 | Mingdong Zhou Michael Yu Wang | 2013 | Computer-Aided Design2013，45，12： | 1 |
| 3 | Engineered model simpli-fication for simulation based structural design显示文摘 | ZHOU Mingdong MICHAEL Y W | 2012 | Computer-Aided Design and Applications2012，9，1： | 1 |
| 4 | Application and Residue Pollution of Mulching Films in Xinjiang显示文摘In order to study current situation of application,recycling and residue pollution of mulching films in Xinjiang,and accurately grasp pollution degree of residue of mulching films,this paper made an empirical analysis on residue of mulching films in 31 typical counties and cities in Xinjiang. Results indicate that( i) use of mulching films in Xinjiang is wide and there is great difference in use and residue recycling between cities and counties. Planting area and planting structure jointly influence use of mulching films,and the use of mulching films is significantly correlated with recycling of mulching films,but not correlated with recycling rate of mulching films.( ii) There are significant differences in distribution of residue of mulching films,highest in North Xinjiang and South Xinjiang,followed by East Xinjiang,and the lowest in West Xinjiang.( iii) There are significant differences in distribution of residue of mulching films between different crop fields. Residue of mulching films in cotton field is the key problem of pollution. | Mingdong ZHOU Hong HOU Hegan DONG Haiying SU Xiaohui QIN | 2016 | Asian Agricultural Research2016，8，1： | 1 |
| 5 | Engineered model simplification for simulation based structural design显示文摘 | Zhou Mingdong Michael Y W | 2012 | Computeraided Design and Ap plications2012，9，1： | 1 |
| 6 | Elucidating the Molecular Mechanism of Dynamic Photodamage of Photosystem II Membrane Protein Complex by Integrated Proteomics Strategy显示文摘Photosystem II(PSII),as a multiple-subunit chloroplast membrane-associated pigment-protein complex on the thylakoid membrane,is a primary target of light-induced photodamage.However,the overall molecular details of the conformation and composition dynamics of PSII photodamage are still controversial.In this study,we investigated systematically the dynamic conformation,degradation,and oxidation processes of PSII photodamage by integrating chemical cross-linking and top-down proteomics strategies. | Ye Zhou Zheyi Liu Mingdong Yao Jun Chen Yanan Xiao Guangye Han Jian-Ren Shen Fangjun Wang | 2022 | CCS Chemistry2022，4，1： | 1 |
| 7 | Extractive and catalytic oxidative desulfurization of gasoline by methyltrioxorhenium in ionic liquids显示文摘 | Zhou Mingdong Meng Wenye Li Yang | 2014 | Energy Fuels2014，28，： | 1 |
| 8 | Nanoliposomes containing Eucalyptus citriodora as antibiotic with specific antimicrobial activity显示文摘 | Lin Lin Haiying Cui Hui Zhou Xuejing Zhang Christian Bortolini Menglin Chert Lei Liu and Mingdong Dong | 2015 | Chemical Communications2015，51，： | 1 |
| 9 | Effect of Degradable Plastic Film Mulching on Cotton Yield in Yuli County显示文摘Nine kinds of biodegradable plastic film and one kind of conventional PE film are used to conduct experiment in the field,and study the effect of degradable plastic film on cotton yield. The results show that there is no difference in cotton yield between Treatment II,III,and ordinary PE film,and other kinds of degradable plastic film significantly reduce yield,with yield reduction of 6. 5%-16. 7%. The yield differences among treatments are mainly affected by the number of plants harvested. | Mingdong ZHOU Xiaohui QIN Xiangjin WANG Hegan DONG Daorui DONG | 2016 | Asian Agricultural Research2016，8，6： | 1 |
| 10 | Pyrolyzing soft template-containing poly(ionic liquid)into hierarchical N-doped porous carbon for electroreduction of carbon dioxide显示文摘Heteroatom-doped carbon materials have demonstrated great potential in the electrochemical reduction reaction of CO_(2)(CO_(2)RR)due to their versatile structure and function.However,rational structure control remains one challenge.In this work,we reported a unique carbon precursor of soft template-containing porous poly(ionic liquid)(PIL)that was directly synthesized via free-radical self-polymerization of ionic liquid monomer in a soft template route.Variation of the carbonization temperature in a direct pyrolysis process without any additive yielded a series of carbon materials with facile adjustable textural properties and N species.Significantly,the integration of soft-template in the PIL precursor led to the formation of hierarchical porous carbon material with a higher surface area and larger pore size than that from the template-free precursor.In CO_(2)RR to CO,the champion catalyst gave a Faraday efficiency of 83.0%and a current density of 1.79 mA·cm^(-2)at-0.9 V vs.reversible hydrogen electrode(vs.RHE).The abundant graphite N species and hierarchical pore structure,especially the unique hierarchical small-/ultramicropores were revealed to enable better CO_(2)RR performance. | Mingdong Sun Zhengyun Bian Weiwei Cui Xiaolong Zhao Shu Dong Xuebin Ke Yu Zhou Jun Wang | 2022 | Chinese Journal of Chemical Engineering2022，35，3： | 1 |
| 11 | Functionalized Polyphosphoester via Living Ring-opening Polymerization and Photochemical Thiol-ene Click Reaction显示文摘Poly(ethylene phosphonate)was synthesized via the living ring-opening polymerization of cyclic phos-phonate monomer catalyzed by organocatalyst.The pendant vinyl ftmctionalities were employed to perform the pho-tochemical click reactions wi&tMols.We demonstrated that both small thiol molecules and macromolecular thiols could be efficiently coupled into the PPE side chains,enabling the rapid and efficient functionalization of polyphos-phoesters(PPE). | WANG Ying WANG Qiliao HOU Liman ZHOU Mingdong DONG Dewen ZHANG Ning | 2019 | Chemical Research in Chinese Universities2019，35，2： | 0 |
| 12 | Ionic porous polyamide derived N-doped carbon towards highly selective electroreduction of CO_(2)显示文摘Electrochemical CO_(2) reduction reaction(CO_(2) RR) has attracted growing attention in energy storage and sustainable production of fuels and chemicals. N-doped carbon materials are preferred metal-free electrocatalysts, but it remains one challenge to finely engineer the active sites and porosity. Herein, we demonstrated that ionic porous polyamides were a kind of versatile precursors to prepare functional carbon materials in a one-step pyrolysis process. The polyamide precursors allowed the maintenance of abundant N species at high temperatures. The existence of ionic moieties and large specific surface area of the precursors promoted the formation of larger porosity carbon with a large specific surface area and sufficient active graphitic-N species by controlling the pyrolysis temperature. The catalyst was highly selective in the CO_(2) RR to produce CO with a maximum Faraday efficiency above 99%, attributable to the improved mass transfer in a large porosity system. This work shows that ionic polyamides are promising carbon precursors for the fabrication of metal-free electrocatalysts for CO_(2) RR. | Mingdong Sun Dongxin Pan Tingting Ye Jing Gu Yu Zhou Jun Wang | 2023 | Chinese Journal of Chemical Engineering2023，55，3： | 0 |
| 13 | Controlling the Si/C ratio in SiC matrix based on the modified polymethysilane for C/C-SiC composites with enhanced mechanical properties显示文摘Fabricating SiC matrix with controllable Si/C ratio for C/C-SiC composites via precursor infiltration and pyrolysis is difficult to realize due to the absence of suitable precursors.Here,SiC precursors with Si-rich(Si/C=1.23),nearstoichiometric(Si/C=1.01),and C-rich(Si/C=0.88)pyrolyzed ceramics at 1200℃ were successfully synthesized by the novel modification of polymethysilane.The structure and ceramization of synthesized SiC precursors were studied,and C/C-SiC composites with similar Si/C ratio in SiC matrix were also fabricated.The results revealed that the defects and Young’s modulus of SiC matrix and the thermal residual stress on pyrolytic carbon coated carbon fiber were determined by the Si/C ratio.As a result,the Si/C ratio exerted significant effects on the crack deflection behavior and the mechanical properties of the composites.The composites with near-stoichiometric SiC matrix showed excellent mechanical properties because of the effective crack deflection and the moderate Young’s modulus of their SiC matrix.The flexural strength,flexural modulus,and compressive strength were 423±27 MPa,33.41±4.52 GPa,and 393±8 MPa,respectively.Meanwhile,after a heat treatment at 1600℃,the role of carbon fiber toughening was improved and accompanied by a decrease in mechanical properties for all composites,which was attributed to the increased defects in SiC matrix and the damaged interfaces by the thermal residual stress. | Mingdong Liao Xiebo Hu Chenghao Zhong Ping Xu Xiaodong Wang Ze Zhang Peng Zhou Mingyu Zhang Zhean Su Qizhong Huang | 2024 | Journal of Advanced Ceramics2024，13，2： | 0 |
| 14 | Noise Pollution Reduction through a Novel Optimization Procedure in Passive Control Methods显示文摘This paper proposes a novel optimization framework in passive control techniques to reduce noise pollution.The geometries of the structures are represented by Catmull-Clark subdivision surfaces,which are able to build gap-free Computer-Aided Design models and meanwhile tackle the extraordinary points that are commonly encountered in geometricmodelling.The acoustic fields are simulated using the isogeometric boundary elementmethod,and a density-based topology optimization is conducted to optimize distribution of sound-absorbing materials adhered to structural surfaces.The approach enables one to perform acoustic optimization from Computer-Aided Design models directly without needingmeshing and volume parameterization,thereby avoiding the geometric errors and time-consuming preprocessing steps in conventional simulation and optimization methods.The effectiveness of the present method is demonstrated by three dimensional numerical examples. | Haojie Lian Leilei Chen Xiao Lin Wenchang Zhao Stephane P.A.Bordas Mingdong Zhou | 2022 | Computer Modeling in Engineering & Sciences2022，，4： | 0 |
| 15 | Physical Changes Trends and Urban-Rural Comparative Research of Han Children Aged 7 in Hunan显示文摘 | Yufeng Guo Hongyan Zhou Mingdong Xiao | 2015 | International English Education Research2015，，2： | 0 |
| 16 | Broadening of appropriate demulsifier dosage range for latexcontaining wastewater by sulfate addition显示文摘Investigation of demulsification of polybutadiene latex (PBL)wastewater by polyaluminum chloride (PAC)indicated that there was an appropriate dosage range for latex removal.The demulsifieation mechanism of PAC was adsorption-charge neutralization and its appropriate dosage range was controlled by zeta potential.When the zeta potential of the mixture was between -15and 15mV aider adding PAC,the demulsification effect was good.Decreasing the latex concentration in chemical oxygen demand (COD)from 8.0g/L to 0.2g/L made the appropriate PAC dosage range narrower and caused the maximum latex removal efficiency to decrease from 95%to 37%.Therefore,more accurate PAC dosage control is required.Moreover,-adding 50mg/L sulfate broadened the appropriate PAC dosage range,resulting in an increase in maximum latex removal efficiency from 37%to 91%for wastewater of 0.2g COD/L.The addition of sulfate will favor more flexible PAC dosage control in demulsification of PBL wastewater. | Shengzhi Zheng Yudong Song Yiming Li Lidong Sun Bin Hu Mingdong An Yuexi Zhou | 2018 | Frontiers of Environmental Science & Engineering2018，12，6： | 0 |
| 17 | New analysis model for rotor-bearing systems based on plate theory显示文摘The purpose of this work is to develop a new analysis model for angular-contact,ball-bearing systems on the basis of plate theory instead of commonly known approaches that utilize spring elements.Axial and radial stiffness on an annular plate are developed based on plate,Timoshenko beam,and plasticity theories.The model is developed using theoretical and inductive methods and validated through a numerical simulation with the finite element method.The new analysis model is suitable for static and modal analyses of rotor-bearing systems.Numerical examples are presented to reveal the effectiveness and applicability of the proposed approach. | Zhinan ZHANG Mingdong ZHOU Weimin DING Huifang MA | 2019 | Frontiers of Mechanical Engineering2019，14，4： | 0 |
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