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Coupled biodegradation of p-nitrophenol and p-aminophenol in bioelectrochemical system:Mechanism and microbial functional diversity

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Journal of Environmental Sciences 2021年第10期33卷 134-144页

作者： jianjun luo Yuxi Xu Jing Wang Libin Zhang Xinbai Jiang Jinyou Shen Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China

Biodegradation mechanisms and microbial functional diversity during coupled pnitrophenol(PNP)and p-aminophenol(PAP)degradation were studied in a bioelectrochemical *** in the biocathode and PAP in the bioanode were almost completely removed within 28 hr and 68 hr *** degradation followed the steps including hydrating hydroxyalkylation,dehydrogenating carbonylation,and hydrolating ring cleavage,*** analysis based on the KEGG and egg NOG database annotations revealed the microbial composition and functional genes/enzymes related to phenol degradation in the *** predominant bacteria genera were Lautropia,Pandoraea,Thiobacillus,Ignavibacterium,Truepera and *** recognized biodegradation genes/enzymes related to pollutant degradation were as follows:pmo,hbd,&ppo for phenol degradation,nzba,amie,&badh for aromatic degradation,and CYP&p450 for xenobiotics degradation,*** co-occurrence of ARGs(antibiotic resistant genes),such as ade F,Mex J,Erm F,PDC-93 and Escherichiacolimdf A,etc.,were annotated in CARD database during the biodegradation *** Proteobacteria&Actinobacteria phylum was the primary host of both the biodegradation genes&ARGs in this *** microbial functional diversity ensured the effective biodegradation of the phenol pollutants in the bioelectrochemical system.

关键词： Phenols biodegradation Functional diversity Functional gene Metagenome

Tribotronic transistor sensor for enhanced hydrogen detection

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Nano Research 2017年第11期10卷 3857-3864页

作者： Yaokun Pang Libo Chen Guofeng Hu jianjun luo Zhiwei Yang Chi Zhang Zhong Lin Wang Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 100083 China National Center for Nanoscience and Technology(NCNST) Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China School of Material Science and Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA

Hydrogen detection with a high sensitivity is necessary for preventing potential explosions and *** this study,a novel ZnO tribotronic transistor is developed by coupling a ZnO field effect transistor （FET） and triboelectric nanogenerator in free-standing mode and is used as a sensor for hydrogen detection at room *** modulated performances of the hydrogen sensor are demonstrated by investigating its output characteristics at different sliding distances and hydrogen *** applying an external mechanical force to the device for sliding electrification,the detection sensitivity of the ZnO tribotronic transistor sensor is improved,with a significant enhancement achieved in output current by 62 times at 500 ppm hydrogen and 1 V bias *** study demonstrates an extension of the applications of emerging tribotronics for gas detection and a prospective approach to improve the performance of the hydrogen sensor via human-interfacing.

关键词： tribotronics triboelectric nanogenerator ZnO hydrogen detection sensitivity

Analysis of the p53/CEP-1 regulated non-coding transcriptome in C. elegans by an NSR-seq strategy

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Protein & Cell 2014年第10期5卷 770-782页

作者： Derong Xu Guifeng Wei Ping Lu jianjun luo Xiaomin Chen Geir Skogerbo Runsheng Chen Laboratory of Non-coding RNA Institute of Biophysics University of Chinese Academy of Sciences Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100080 China Key Laboratory of Forest Protection State Forestry Administration/Research Institute of Forest Ecology Environment andProtection Chinese Academy of Forestry Beijing 100091 China

In recent years, large numbers of non-coding RNAs （ncR- NAs） have been identified in C. elegans but their functions are still not well studied. In C. elegans, CEP-1 is the sole homolog of the p53 family of genes. In order to obtain transcription profiles of ncRNAs regulated by CEP-1 under normal and UV stressed conditions, we applied the ＇not-so- random＇ hexamers priming strategy to RNA sequencing in C. elegans, This NSR-seq strategy efficiently depleted rRNA transcripts from the samples and showed high technical replicability. We identified more than 1,000 ncR- NAs whose apparent expression was repressed by CEP-1, while around 200 were activated. Around 40% of the CEP-1 activated ncRNAs promoters contain a putative CEP-1- binding site. CEP-1 regulated ncRNAs were frequently clustered and concentrated on the X chromosome. These results indicate that numerous ncRNAs are involved in CEP-1 transcriptional network and that these are espe- cially enriched on the X chromosome in C. elegans.

关键词： p53/CEP-1 C. elegans ncRNA removalrRNA NSR-seq high technical replicability

A Robust Singularity Avoidance Method with Improved Path Tracking Performance for Autonomous Manipulation 36

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A Robust Singularity Avoidance Method with Improved Path Tra...

Low-complexity Stabilization Control of Combined Spacecraft with an Unknown Captured Object 36

第36届中国控制会议

作者： Mingming Wang jianjun luo Jianping Yuan Chen Xu Science and Technology on Aerospace Flight Dynamics Laboratory Northwestern Polytechnical University Research Institute of Northwestern Polytechnical University in Shenzhen

ISBN: (纸本)9781538629185

As an inherent characteristic of articulated manipulator,singularity is an inevitable issue while a manipulator is tracking a path defined in its *** this paper,a new singular task reconstruction（STR） method based on the concept of manipulability ellipsoid is proposed to solve kinematic and algorithmic singularity *** projecting the desired task onto the direction of manipulability ellipsoid’s semi-axes when the manipulator approaches its singular configuration,the modified task impedes the manipulator to enter its singularity region,and simultaneously guarantees improved path tracking performance as compared to a standard Damper Least-Squares（DLS） ***,this algorithm can be simply extended in the framework of task-priority based *** from an online evaluation of singular value and eigenvector of the Jacobian matrix,this new method does not require prior knowledge of an emerging singular *** performance and effectiveness of the proposed STR algorithm is demonstrated by simulation works.

关键词： Singular task reconstruction path tracking task-priority

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Low-complexity Stabilization Control of Combined Spacecraft ...

Enhancing magnetic properties of anisotropic NdDyFeCoNbCuB powder by applying magnetic field at high temperature during hydrogen desorption

第36届中国控制会议

作者： Caisheng Wei jianjun luo Chen Xu Jianping Yuan National Key Laboratory of Aerospace Flight Dynamics Northwestern Polytechnical University

ISBN: (纸本)9781538629185

This paper investigates a low-complexity prescribed performance control approach for combined spacecraft with an unknown captured object in the presence of external disturbance. First, a prescribed performance function with appropriate parameters is selected for the filtered state variables involving the attitude and angular velocity. Then, a low-complexity robust prescribed performance controller is developed without any priori knowledge of the inertial information of combined *** dramatically decreases the complexity of controller design for combined spacecraft with large uncertainty owing to the fact that the tedious identification of inertial property is avoided. Finally, an illustrative example is employed to validate the effectiveness of proposed control approach in terms of stabilizing the combined spacecraft.

关键词： Nonlinear Control Prescribed Performance Spacecraft Non-cooperative Target

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Rare Metals 2010年第5期29卷 480-485页

作者： luo jianjun P. De Rango D. Fruchart MEI Jinna HU Rui LI Jinshan ZHOU Lian State Key Laboratory of Solidification Processing Northwestern Polytechnic University Xi'an 710072 China Matière Condensée Matériaux et Fonctions ( MCMF ) lnstitut Néel CNRS BP 166 38042 Grenoble Cedex 9 Francec Consortium de Recherches pour l'Emergence de Technologies Avancées ( CRETA ) CNRS BP 166 38042 Grenoble Cedex 9 France

Anisotropic powder was prepared with precursor （NdDy）-（FeCoNbCu）-B sintered magnets by hydrogen decrepitation, desorption, and subsequent annealing treatment. The hydrogen desorption was performed in magnetic fields of 0, 1, 3, and 5 T. The orientation of tetragonal phase grains of the powder was evaluated from the hysteresis loops measured by extraction magnetometer. Residual hydrogen content of the powder was evaluated by thermal-magnetic analysis. The powder with Hcj, Br, and （BH）max of 1138 kA.m^-1, 1.029 T, and 172.5 kJ.m^-3, respectively, was achieved under the condition of the magnetic field of 3 T. Magnetic properties of the powder, especially, the remanence of the powder, are enhanced upon magnetic fields, which is due to better orientation of powder particles and less residual hydrogen in the powder resulted from the magnetic field during the hydrogen desorption process.

关键词： permanent magnets hydrogen absorbing materials anisotropy magnetic measurements magnetic properties

Self-powered ammonia synthesis under ambient conditions via N_(2) discharge driven by Tesla turbine triboelectric nanogenerators

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Microsystems & Nanoengineering 2021年第1期7卷 109-116页

作者： Kai Han jianjun luo Jian Chen Baodong Chen Liang Xu Yawei Feng Wei Tang Zhong Lin Wang CAS Center for Excellence in Nanoscience Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083P.R.China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049P.R.China Center on Nanoenergy Research School of Physical Science and TechnologyGuangxi UniversityNanning 530004P.R.China School of Material Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332-0245USA

Ammonia synthesis using low-power consumption and eco-friendly methods has attracted increasing ***,based on the Tesla turbine triboelectric nanogenerator(TENG),we designed a simple and effective self-powered ammonia synthesis system by N_(2) *** the driving of the simulated waste gas,the Tesla turbine TENG showed high rotation speed and high *** addition,the performance of two Tesla turbine TENGs with different gas path connections was systematically investigated and discussed.A controllable series-parallel connection with the control of gas supply time was also *** advantage of the intrinsic high voltage,corona discharge in a N_(2) atmosphere was simply realized by a Tesla turbine *** the flow of N_(2),the generated high-energy plasma can immediately react with water molecules to directly produce *** self-powered system achieved a yield of 2.14μg h^(−1)(0.126μmol h^(−1))under ambient conditions,showing great potential for large-scale synthesis.

关键词： synthesis. ammonia synthesis

Synthesis and characterization of yttrium hydroxide and oxide microtubes

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Rare Metals 2009年第5期28卷 445-448页

作者： WANG Shijin ZHONG Shengliang WEN Zubiao WANG Yuling WANG Shangping CHEN jianjun XU Rong luo Longfei College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 China

Hexagonal microtubes with hexagonal phase Y（OH）3 were successfully synthesized by a facile solvothermal method at 160°C for 12 h in the absence of surfactants or templates via a crystal transformation route. Scanning electron microscopy （SEM） results demonstrate that the prepared hexagonal microtubes are with a wall thickness of 50-100 nm, an outer diameter of 1 μm, and lengths going up tens of micrometers. Cubic phase Y2O3 microtubes were obtained after thermal treatment of the Y（OH）3 microtubes at 700 oC for 4 h. Eu^3＋-doped Y2O3 microtubes with strong red emission at 610 nm were also prepared and their photoluminescence （PL） properties were studied. The possible mechanism for the formation of the microtubes was briefly discussed.

关键词： inorganic compounds chemical synthesis luminescence microstructure

Development of a Novel Endovascular Brachytherapy Stent:A Proof-of-concept Study

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Journal of Clinical and Translational Hepatology 2021年第5期9卷 711-718页

作者： Nan Du Jingqin Ma Zihan Zhang Yongjie Zhou Minjie Yang Wen Zhang jianjun luo Zhiping Yan Department of Interventional Radiology Zhongshan HospitalFudan UniversityShanghaiChina Shanghai Institution of Medical Imaging ShanghaiChina

Background and Aims:Endovascular implantation of iodine-125(125I)seeds strand combined with stent is an effective method of treatment for portal vein tumor *** aim of this study was to develop a novel endovascular brachytherapy stent(EVB-Stent)and to evaluate its feasibility of ***:An EVB-Stent was implanted into the main portal vein(MPV)in a live porcine model via the percutaneous transhepatic *** samples were collected and tested before and after operation,as well as before ***-photon emission computed tomography(SPECT)combined with CT(SPECT/CT)scan were performed directly after operation and CT scan was performed 2 months after *** the CT scan was performed,all animals were euthanized and histologically ***:The novel stent was successfully positioned in all six *** deterioration of liver function was observed during the 2-month follow-up ***/CT revealed the uniform distribution of radiation around the seeds strand,and the hottest spot was near the center of the *** patency of the stented MPV was confirmed using CT *** tissue-accumulated absorbed dose was 31,822.11 mGy at 10 mm transversely away from the midpoint of the 125I seeds strand,with a half-life of 59.4 *** examination results showed no significant atrophy or inflammation of adjunct liver tissue,and no obvious intima thickening or thrombosis were detected in the stented ***:A liver porcine model was used to demonstrate that the transhepatic placement of a novel endovascular brachytherapy stent,EVB-Stent,is both technically feasible and safe.

关键词： Portal vein tumor Tumor thrombus Brachytherapy Stent Iodine-125 seeds strand