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Journal of Materials Science & Technology 2022年第3期98卷 212-218页

作者： junmao hong Le Kang Xiaofeng Shi Renbo Wei Xianmin Mai Duo Pan Nithesh Naik Zhanhu Guo School of Environment and Safety Engineering School of Materials Science and TechnologyInstitute of Advanced Energy Materials and SystemsNorth University of ChinaTaiyuanChina School of Chemical Engineering Northwest UniversityXi’an 710069China School of Urban Planning and Architecture Southwest Minzu UniversityChengdu 610041China Key Laboratory of Materials Processing and Mold(Zhengzhou University) National Engineering Research Center for Advanced Polymer Processing TechnologyMinistry of EducationZhengzhou UniversityZhengzhou 450000China Department of Mechanical&Manufacturing Engineering Manipal Institute of TechnologyManipal Academy of Higher EducationManipalKarnataka 576104India Integrated Composites Laboratory(ICL) Department of Chemical&Biomolecular EngineeringUniversity of TennesseeKnoxvilleTN 37996United States

A novel Fe/Co metal organic complex nanosheet modified by 1,4-dicarboxybenzene(BDC),i.e.,FeCo@BDC,was prepared,and highly efficient removal performance for trace lead(Ⅱ)(Pb^(2+))was demonstrated in the neutral aqueous *** removal rates were higher than 95%and the adsorption was equilibrated in 15 *** isotherms and kinetics for the adsorption Pb^(2+)by the FeCo@BDC adsorbents followed Langmuir model and pseudo-second-order model,*** maximum adsorption capacity was 220.48 mg g^(-1).The FeCo@BDC adsorbents also own a prominent regeneration *** prominent performance of in the removal of trace Pb^(2+)makes FeCo@BDC an ideal candidate as commercial adsorbent materials.

关键词： Metal organic complex Nanosheet Trace level Lead(Ⅱ) Adsorption

Prominent removal of trace lead(Ⅱ)ions from polluted water by terephthalic acid reformed Al/Zn metal organic nanoflakes

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Particuology 2024年第1期84卷 81-88页

作者： Junhua Li Lingshu Gao junmao hong Xiaofeng Shi Sifang Kong Jingyu Wang Hassan Algadi Benbin Xu Zhanhu Guo School of Chemistry and Chemical Engineering North University of ChinaTaiyuan030051China School of Traffic&Environment Shenzhen Institute of Information TechnologyShenzhen518172China Department of Electrical Engineering Faculty of EngineeringNajran UniversityNajran11001Saudi Arabia Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon TyneNE18STUK

Terephthalic acid reformed Al/Zn metal organic nanoflake was prepared and functionalized with trie-thylamine(T-AlZn).Without adding terephthalic acid,there was no product of metal organic nanoflake.T-AlZn has a remarkable performance in removing trace lead(Ⅱ)ions(Pb^(2+)).The adsorption equipoise with the removal rate≥97%was reached within 35 *** removal rates of T-AlZn for Pb^(2+)declined by only 16.73%after four *** adsorption of T-AlZn for Pb^(2+)follows the Langmuir isotherms model and pseudo-second-order dynamics *** utmost adsorption competence was calculated as 215.27 mg g^(-1).The T-AlZn adsorbent exhibits a bright prospect in the adsorption for Pb^(2+)and is a considerable candidate in the disposal of industrial sewage.

关键词： Metal organic complex Nanoflake Trace level Pb^(2+) Adsorption

Preparation of Mg,N-co-doped lignin adsorbents for enhanced selectivity and high adsorption capacity of As(Ⅴ) from wastewater

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Particuology 2021年第5期19卷 206-213页

作者： Xiaofeng Shi junmao hong Chao Wang Sifang Kong Junhua Li Duo Pan Jing Lin Qinglong Jiang Zhanhu Guo School of Environment and Safety Engineering Institute of Advanced Energy Materials and SystemsNorth University of ChinaTaiyuan 030051China School of Traffic&Environment Shenzhen Institute of Information TechnologyShenzhen 518172China School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450001China Integrated Composites Laboratory(ICL) Department of Chemical and Bimolecular EngineeringUniversity of TennesseeKnoxvilleTN 37996USA Department of Chemistry and Physics University of ArkansasPine BluffAR 71601USA

Among various environmental problems,water pollution has drawn more and more *** develop an adsorbent with enhanced selectivity and high capacity for As(V)oxyanion,a novel lignin-based adsorbent was prepared by doping with N and modifying with Mg^(2+),using thiethylenetetramine(TETA)and MgCl_(2) as the source of N and Mg^(2+),respectively.N-doped lignin(NL)shows a high selectivity for As(Ⅴ),which is further enhanced by modifying with Mg^(2+)(MNL).MNL shows an excellent *** adsorption isotherms and kinetics of MNL for As(Ⅴ)follow Langmuir isotherms model and pseudo-second-order kinetics model,*** adsorption of MNL for As(Ⅴ)achieved a maximum adsorption capacity of 687.46 mg g^(−1) and the equilibrium was established within 30 *** study offers a novel idea on the recycle of the waste of paper industry and provides a new technology for As(Ⅴ)adsorption from wastewater.

关键词： Adsorbents Doping Heavy metals Adsorption Selectivity

A Study of Neutron Star Structure in Strong Magnetic Fields that includes Anomalous Magnetic Moments

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Chinese Journal of Astronomy and Astrophysics 2003年第4期3卷 359-374页

作者： Guang-junmao AkiraIwamoto Zhu-XiaLi InstituteofHighEnergyPhysics ChineseAcademyofScienceBeijing100039 JapanAtomicEnergyResearchInstitute TokaiNakaIbaraki319-1195Japan ChinaInstituteofAtomicEnergy Beijing102413

We study the effect of strong magnetic fields on the structure of neutron star. We find that if the interior field is on the same order as the surface field currently observed, then the influences of the field on the star's mass and radius are negligible; if the field is as large as that estimated from the scalar virial theorem, then considerable effects will be induced. The maximum mass of the star will be increased substantially while the central density is greatly reduced. The radius of a magnetic star can be larger by about 10% ~ 20% than a nonmagnetic star of the same mass.

关键词： stars: neutron stars stars: magnetic fields equation of state

Bionic Mechanism and Kinematics Analysis of Hopping Robot Inspired by Locust Jumping

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Journal of Bionic Engineering 2011年第4期8卷 429-439页

作者： Diansheng Chen junmao Yin Kai Zhao Wanjun Zheng Tianmiao Wang Robotic Institute Beihang University Beijing 100191 P. R. China

A flexible-rigid hopping mechanism which is inspired by the locust jumping was proposed, and its kinematic characteris- tics were analyzed. A series of experiments were conducted to observe locust morphology and jumping process. According to classic mechanics, the jumping process analysis was conducted to build the relationship of the locust jumping parameters. The take-offphase was divided into four stages in detail. Based on the biological observation and kinematics analysis, a mechanical model was proposed to simulate locust jumping. The forces of the flexible-rigid hopping mechanism at each stage were ana- lyzed. The kinematic analysis using pseudo-rigid-body model was described by D-H method. It is confirmed that the proposed bionic mechanism has the similar performance as the locust hind leg in hopping. Moreover, the jumping angle which decides the jumping process was discussed, and its relation with other parameters was established. A calculation case analysis corroborated the method. The results of this paper show that the proposed bionic mechanism which is inspired by the locust hind limb has an excellent kinematics performance, which can provide a foundation for design and motion planning of the hopping robot.

关键词： hopping robot flexible-rigid mechanism bionic mechanism kinematics

Prototype Design and Experimental Study on Locust Air-Posture Righting

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Journal of Bionic Engineering 2014年第3期11卷 459-468页

作者： Diansheng Chen junmao Yin Kewei Chen Kai Zhao Benguang Zhang Robotics Institute Beihang University Beijing 100191 P. R. China

Locust has the capacity to maintain a righting posture and glide through attitude adjustment after leaping. A prototype inspired by the dynamic mechanism of attitude adjustment of locusts was developed. The prototype consists of a pair of wings driven by a four-bar mechanism, and a 2 Degree of Freedom （DOF） tail to imitate the movement of the locust abdomen. The power source, microcontroller, wireless data transmission module, and attitude sensors are contained in the fuselage. Experiments imitating the flight of locust were conducted to determine the mechanism of locust Subsequent Attitude Adjustment （SAA）. The tethered prototype was driven by the movement of the tail and the flapping of the wings. Results show that the pitch and yaw of the tail, and the asymmetric action of the flapping wings significantly influence the posture of the prototype. These findings suggest that both the wiggling abdomen and flapping wings contribute to the locust SAA in the air. This research lays the groundwork and technical support for the probable design and development of practical jumping robots with attitude adjustment function.

关键词： attitude adjustment locust air-posture righting prototype design wiggling tail flapping wing

Two Alternative Routes to MS_2 Nanotubes

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Journal of Materials Science & Technology 2007年第2期23卷 185-188页

作者： Yanqing LIU Changsheng LI Jinghai YANG Zhong HUA junmao LI Kehong YAN Shuhuo ZHAO College of Physics Jilin Normal University Siping 136000 China School of Material Science and Engineering Jiangsu University Zhenjiang 212013 China

Inorganic tubular nanostructure MS2 （M=Mo, W, Nb, Ta） were synthesized by two alternative routes. Thermal decomposition method was used for producing fullerence-like MS2 （M=Mo, W） nanotubes on Al2O3 template using ammonium sulfur respectively; NbS2, and TaS2 nanotubes were obtained successfully by reducing corresponding metal trisulfide in a stream of H2 （mixed with N2 in some cases） at elevated *** experimental procedure, and the characterization of associated results, were evaluated using X-ray diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM） and high resolution transmission electron microscopy （HRTEM）. The result reveals that products are composed of high density of MS2 tubular nanostructures with the diameter of 100 nm and length of tens of micrometers. And no mistake, these 1-D （one-dimensional） tubular nanomaterials added quantities and varieties in the growing family of nanotubes of inorganic layered materials.

关键词： Dichalcogenide Nanotube Thermal decomposition Gas-solid reaction

Uptake of albumin nanoparticle surface modified with glycyrrhizin by primary cultured rat hepatocytes

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World Journal of Gastroenterology 2005年第20期11卷 3075-3079页

作者： Sheng-junmao Shi-XiangHou RuHe Liang-KeZhang Da-PengWei Yue-QiBi HuiJin WestChinaSchoolofPharmacy SichuanUniversityChengdu610041SichuanProvinceChina

AIM: To investigate the uptake difference between bovine serum albumin nanoparticle (BSA-NP) and bovine serum albumin nanoparticles with their surface modified byglycyrrhizin (BSA-NP-GL) and to develop a novel hepatocyte targeting BSA-NP-GL based on active targeting technology mediated by specific binding site of GL on rat cellular membrane. METHODS: Calcein loaded bovine serum albumin nanoparticles (Cal-BSA-NP) were prepared by desolvation process. Glycyrrhizin was conjugated to the surface reactive amino groups (SRAG) of Cal-BSA-NP by sodium periodate oxidization, which resulted in calcein-loaded bovine serum albumin nanoparticles with their surface modified by glycyrrhizin (Cal-BSA-NP-GL). The morphology of the two types of prepared nanoparticles (NP) was observed by transmission electron microscopy. The diameter of NP was measured with a laser particle size analyzer. The interaction between Cal-BSA-NP-GL and primary cultured hepatocytes was studied through cellular uptake experiments. The uptake amount of Cal-BSA-NPGL and Cal-BSA-NP by rat hepatocytes was determinedby fluorospectrophotometry. Uptake characteristics were investigated through experiments of competitive inhibition of specific binding site of GL. RESULTS: Both Cal-BSA-NP-GL and Cal-BSA-NP had regular spherical surfaces. The average diameter of CalBSA-NP-GL and Cal-BSA-NP was 77 and 79 nm respectively. The uptake amount of the two NP by hepatocytes reached its maximum at 2 h after incubation. The uptake amount of Cal-BSA-NP-GL by rat hepatocytes was 4.43-fold higher than that of Cal-BSA-NP. There was a significant difference in the uptake of Cal-BSA-NP-GL and Cal-BSA-NP by hepatocytes (P＜0.01). The uptake of Cal-BSA-NP-GL was inhibited when GL was added previously to isolated rat hepatocytes, and the uptake of Cal-BSA-NP was not affected by ***: A binding site of GL is present on the surface of rat hepatocytes, BSA-NP-GL may be internalized via this site by hepatocytes and can be used as a

关键词： Glycyrrhizin Surface modified Bovine serum albumin Nanoparticles Hepatocytes

Greenspace’s value orientations of ecosystem service and socioeconomic service in China

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Ecosystem Health and Sustainability 2022年第1期8卷 135-150页

作者： Xia Yao Tao Lin Shoukai Sun Guoqin Zhang Hao Zhou Laurence Jones Wenhui Liu Yiyi Huang Meixia Lin junmao Zhang Yuan Chena hong Ye Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamenFujianChina University of Chinese Academy of Sciences BeijingPekingChina Swiss Tropical and Public Health Institute BaselSwitzerland Faculty of Philosophy and Natural Sciences University of BaselBaselSwitzerland Nanjing Institute of Environmental Sciences Ministry of Ecology and Environment of the People’s Republic of ChinaNanjingJiangsuChina Environment Centre Wales Centre for Ecology&HydrologyBangorUK Coastal and Ocean Management Institute Xiamen UniversityFujianChina

Background:Natural ecosystems provide necessary services for human beings,including ecosystem service values(ESVs)and socioeconomic service values(SSVs).The value orientations of ESVs and SSVs are mainly related to people’s interaction with *** study reclassified greenspace from a perspective of exposed and non-exposed greenspace based on the level of interaction by people and *** applied an expert questionnaire to survey the SSVs value orientations of forestland,grassland,wetland,and water bodies,and quantitatively compared the value orientations between the ESVs and SSVs of greenspace in ***:(1)The values of exposed greenspace were relatively far higher than nonexposed greenspace,as it had both ESVs and SSVs.(2)The forestland and grassland had relatively high ESVs and SSVs,and are the priority for both the exposed and non-exposed greenspace.(3)Wetland had relatively high ESVs but low SSVs,which was unpopular for exposed greenspace.(4)The ESVs and SSVs of water body were relatively ***:Greenspace had both ESVs and SSVs when they are exposed to *** study provided an innovative perspective to explore the value orientations of greenspace,which provides an actionable scientific basis for greenspace planning,design and construction in human habitat.

关键词： Greenspace exposure ecosystem service values socioeconomic service values value orientations

Global nitrogen input on wetland ecosystem:The driving mechanism of soil labile carbon and nitrogen on greenhouse gas emissions

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Environmental Science and Ecotechnology 2020年第4期4卷 26-38页

作者： Mengli Chen Lian Chang junmao Zhang Fucheng Guo Jan Vymazal Qiang He Yi Chen College of Environment and Ecology Key Laboratory of the Three Gorges Reservoir Region’s Eco-EnvironmentMinistry of EducationChongqing UniversityChongqing400045China Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment Ministry of EducationChongqing400045China Department of Applied Ecology Faculty of Environmental SciencesCzech University of Life Sciences Prague16521Prague 6Czech Republic

Greenhouse gas emissions from wetlands are significantly promoted by global nitrogen input for changing the rate of soil carbon and nitrogen cycling,and are substantially affected by soil labile carbon and nitrogen ***,the driving mechanism by which soil labile carbon and nitrogen affect greenhouse gas emissions from wetland ecosystems under global nitrogen input is not well *** out the driving factor of nitrogen input on greenhouse gas emissions from wetlands is critical to reducing global warming from nitrogen ***,we synthesized 72 published studies(2144 paired observations)of greenhouse gas fluxes and soil labile compounds of carbon and nitrogen(ammonium,nitrate,dissolved organic carbon,soil microbial biomass nitrogen and carbon),to understand the effects of labile carbon and nitrogen on greenhouse gas emissions under global nitrogen *** the data set,nitrogen input significantly promoted carbon dioxide,methane and nitrous oxide emissions from *** particular,at lower nitrogen rates(<100 kg ha^(-1)$·yr^(-1))and with added ammonium compounds,freshwater wetland significantly promoted carbon dioxide and methane *** was the largest nitrous oxide source under these *** meta-analysis also revealed that nitrogen input stimulated dissolved organic carbon,ammonium,nitrate,microbial biomass carbon and microbial biomass nitrogen accumulation in the wetland *** variation-partitioning analysis and structural equation model were used to analyze the relationship between the greenhouse gas and labile carbon and nitrogen *** results revealed that dissolved organic carbon(DOC)is the primary factor driving greenhouse gas emission from wetlands under global nitrogen input,whereas microbial biomass carbon(MBC)more directly affects greenhouse gas emission than other labile carbon and nitrogen.

关键词： Wetland Greenhouse gas Nitrogen deposition Fertilization Soil labile compounds