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Nickel phosphide on Ni foam as anode and peroxymonosulfate as the chemical oxidizer for effective direct urea fuel cell

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Journal of Environmental Sciences 2021年第12期33卷 84-91页

作者： Jingwei Hao Shen zhao Ran Mao Xu zhao Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

The direct urea fuel cell(DUFC) is a low cost and competitive approach for contemporaneous urine or urea-contaminated wastewater treatment and electricity generation. However,the lack of efficient urea oxidation reaction(UOR) electrocatalysts and suitable electron acceptors remains a challenge for practical applications. Here, we developed a DUFC system using Ni2 P@Ni foam as the anode and peroxymonosulfate(PMS) as the chemical *** Ni2 P@Ni foam anode showed a high oxidation activity for UOR with an onset potential of 0.30 V vs. Ag/Ag Cl and Tafel slope of 34.4 m V/dec. PMS with high theoretical potential improved the cell voltage to 1.43 V. A power density of DUFC up to 4.91 m W/cm2 was achieved using PMS at room temperature, which was approximately twice as high as using H2 O2(2.38 m W/cm2). NiII/NiⅢwas the redox active species on the Ni2 P anode in the DUFC process, and NiIIwas electrochemically oxidized to NiⅢ, which reverted to NiII by urea reduction. When real human urine was used as the fuel, a power density of 4.46 m W/cm2 can be achieved at room temperature. This DUFC with high cell performance showed potential application in urea wastewater treatment.

关键词： Direct urea fuel cell(DUFC) Ni2P Peroxymonosulfate Urine

The latest development on amine functionalized solid adsorbents for post-combustion CO_(2)capture:Analysis review

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Chinese Journal of Chemical Engineering 2021年第7期34卷 17-43页

作者： Peiyu zhao Guojie Zhang Huangyu Yan Yuqiong zhao Heze Branch Qilu University of Technology(Shandong Academy of Sciences)Biological Engineering Technology Innovation Center of Shandong ProvinceHeze 274000China Key Laboratory of Coal Science and Technology Ministry of Education and Shanxi ProvinceTaiyuan University of TechnologyTaiyuan 030024China

Global warming and associated global climate change have led to serious efforts towards reducing CO_(2)emissions through the CO_(2)capture from the major emission ***_(2)capture using the amine functionalized adsorbents is regard as a direct and effective way to reducing CO_(2)emissions due to their large CO_(2)adsorption amount,excellent CO_(2)adsorption selectivity and lower energy requirements for adsorbent ***,large number of achievements on the amine functionalized solid adsorbent have been recorded for the enhanced CO_(2)capture in the past few *** view of this,we review and analyze the recent advances in amine functionalized solid adsorbents prepared with different supporting materials including mesoporous silica,zeolite,porous carbon materials,metal organic frameworks(MOF)and other composite porous *** addition,amine functionalized solid adsorbents derived from waste resources are also reviewed because of the large number demand for cost-effective carbon dioxide adsorbents and the processing needs of waste *** the importance of the stability of the adsorbent in practical applications,advanced research in the capture cycle stability has also been summarized and ***,we summarize the review and offer the recommendations for the development of amine-based solid adsorbents for carbon dioxide capture.

关键词： Solid adsorbents Amine functionalized CO_(2)capture Adsorption Review

CDK6 inhibits lymphoid cell infiltration and represents a prognostic marker in HPV+ squamous cell carcinoma of head and neck

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Chinese Journal of Cancer Research 2019年第6期31卷 901-909页

作者： Chuanhao Tang Li Lin wei Zhou Xiang Liu Yali Fu Lingling Zhang Li Li Xiangyi Wang Libo zhao Jun Liang Libo zhao Jun Liang Department of Medical Oncology Peking University International Hospital

Objective:We investigated the correlations between cyclin-dependent kinase 4/6(CDK4/6)levels and human papillomavirus(HPV)infection state in head and neck squamous cell cancer(HNSCC).The aim was to explore the potential value of CDK4/6 inhibitors in the treatment of ***:Multiomic sequencing data for HNSCC were obtained from The Cancer Genome Atlas(TCGA),and the mRNA levels and copy number variations(CNVs)of CDK4 and CDK6 were strictly *** survival(OS)curves were produced using the Kaplan-Meier method,and survival differences between groups were assessed by the log-rank ***,gene set enrichment analysis(GSEA)was applied to interrogate CDK4/6-associated molecular pathways in HPV-positive(HPV+)and HPV-negative(HPV-)***,lymphoid cell infiltrates in each type of HNSCC were explored,and the correlations between CDK4/6 expression and lymphoid infiltrates were explored by Tumor Immune Estimation Resource(TIMER)***:Overexpression of either CDK6 or CDK4 was not a relevant factor for OS in HPV-HNSCC(CDK6:top 40%*** 40%,P=0.885;CDK4:top 40%*** 40%,P=0.267).In HPV+HNSCC,CDK6 but not CDK4 was a relevant factor for OS(CDK6:top 40%*** 40%,P=0.002;CDK4:top 40%*** 40%,P=0.452).GSEA found that overexpressed CDK6 in HPV+HNSCC inhibited pathways involved in the tumor immune response,suggesting its roles in antitumor *** analysis results revealed that CDK6 but not CDK4 accumulation was negatively correlated with the number of tumor-infiltrating lymphocytes specific for HPV+HNSCC,which led to tumor response ***:CDK6,but not CDK4,is a poor prognostic marker specific in HPV+HNSCC *** CDK6 might stimulate tumor progression by suppressing lymphocytes infiltration independent of its kinase *** abrogating its kinase activity using current CDK4/6 inhibitors was not enough to block its tumor promotion function.

关键词： HNSCC HPV CDK4/6 immune infiltration

Deep Learning for EMG-based Human-Machine Interaction:A Review

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IEEE/CAA Journal of Automatica Sinica 2021年第3期8卷 512-533页

作者： Dezhen Xiong Daohui Zhang Xingang zhao Yiwen zhao State Key Laboratory of Robotics Shenyang Institute of AutomationInstitutes for Robotics and Intelligent ManufacturingChinese Academy of SciencesShenyang 110016 University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Robotics Shenyang Institute of AutomationInstitutes for Robotics and Intelligent ManufacturingChinese Academy of SciencesShenyang 110016China

Electromyography(EMG)has already been broadly used in human-machine interaction(HMI)*** how to decode the information inside EMG signals robustly and accurately is a key problem for which we urgently need a ***,many EMG pattern recognition tasks have been addressed using deep learning *** this paper,we analyze recent papers and present a literature review describing the role that deep learning plays in EMG-based *** overview of typical network structures and processing schemes will be *** progress in typical tasks such as movement classification,joint angle prediction,and force/torque estimation will be *** issues,including multimodal sensing,inter-subject/inter-session,and robustness toward disturbances will be *** attempt to provide a comprehensive analysis of current research by discussing the advantages,challenges,and opportunities brought by deep *** hope that deep learning can aid in eliminating factors that hinder the development of EMG-based HMI ***,possible future directions will be presented to pave the way for future research.

关键词： Accuracy deep learning electromyography(EMG) human-machine interaction(HMI) robustness

Atherosclerosis,its risk factors,and cognitive impairment in older adults

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Journal of Geriatric Cardiology 2020年第7期17卷 434-440页

作者： Yun-Li XING Michael A Chen Ying SUN Moni B Neradilek Xi-Ting WU Dai ZHANG wei HUANG Yining CUI Qi-Qi YANG Hong-wei LI Xue-Qiao zhao Department of Geriatrics and Gerontology Beijing Friendship HospitalCapital Medical UniversityBeijingChina Division of Cardiology University of WashingtonSeattleWAUSA The Mountain-Whisper-Light Statistics SeattleWAUSA Cardiovascular Center Beijing Friendship HospitalCapital Medical UniversityBeijingChina

Objective To examine the association of atherosclerotic cardiovascular disease(ASCVD)and its risk factors with cognitive impairment in older *** Six hundred and fourteen subjects,aged≥65 years,from one center(2016–2018)underwent clinical,laboratory assessments and the Montreal Cognitive Assessment(Mo CA).Using regression analysis,the relationship between ASCVD and its risk factors was evaluated in subjects with and without cognitive impairment(MoCA score<26).Results Older age(b=-1.3 per 5 years,95%CI:-1.7 to-0.9,P<0.001),history of stroke(b=-1.6,95%CI:-3.0 to-0.3,P=0.01),and myocardial infarction(MI;b=-2.2,95%CI:-3.6 to-0.8,P=0.003)were independently associated with lower MoCA scores,whereas more education(b=1.5 per 3 years,95%CI:1.1 to 1.9,P<0.001),higher body mass index(BMI;b=0.5 per 3 kg/m^2,95%CI:0.0 to 1.0,P=0.04),higher estimated glomerular filtration rate(eGFR;b=0.8 per 15 U,95%CI:0.1 to 1.4,P=0.03),left ventricular ejection fraction(LVEF;b=0.4 per 5%,95%CI:0 to 0.8,P=0.04)and statin use(b=1.3,95%CI:0.3 to 2.3,P=0.01)were associated with a higher MoCA *** impairment was independently associated with older age(OR=1.51 per 5 yrs,95%CI:1.28 to 1.79,P<0.001),less education(OR=0.55 per 3 years,95%CI:0.45 to 0.68,P<0.001),lower BMI(OR=0.78 per 3 kg/m^2,95%CI:0.62 to 0.98,P=0.03)and higher levels of high sensitivity c-reactive protein(hsCRP;OR=1.08 per 1 mg/L,95%CI:1.02 to 1.15,P=0.01).Conclusions Beyond age,cognitive impairment was associated with prior MI/stroke,higher hsCRP,statin use,less education,lower eGFR,BMI and LVEF.

关键词： Atherosclerosis Cognitive impairment Correlation Older adults Risk factors

Z-scheme heterojunction of SnS_(2)-decorated 3DOM-SrTiO_(3) for selectively photocatalytic CO_(2) reduction into CH4

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Chinese Chemical Letters 2020年第10期31卷 2774-2778页

作者： Wenjie He Xingxing Wu Yifei Li Jing Xiong Zhiling Tang Yuechang wei Zhen zhao Xiao Zhang Jian Liu State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China Key Laboratory of Optical Detection Technology for Oil and Gas China University of PetroleumBeijing 102249China

The rapid recombination of photoinduced electron-hole pairs as well as the deficiency of high-energy carriers restricted the redox ability and products ***,the heterojunction of SnS_(2)-deco rated three-dimensional ordered macropores(3DOM)-SrTiO_(3) catalysts were in-situ constructed to provide transmit channel for high-energy electron *** suitable band edges of SnS_(2) and SrTiO_(3) contribute to the Z-scheme transfer of photogenerated *** 3DOM structure of SrTiO_(3)-based catalyst possesses the slow light effect for enhancing light adsorption efficiency,and the surface alkalis strontium is benefit to the boosting adsorption for CO_(2).The in-situ introduced SnS_(2) decorated on the macroporous wall surface of 3DOM-SrTiO_(3) altered the primary product from CO to *** Z-scheme electron transfer from SnS_(2) combining with the holes in SrTiO_(3) occurred under full spectrum photoexcitation,which improved the excitation and utilization of photogene rated electrons for C02 multi-electrons *** a result,(SnS_(2))3/3 DOM-SrTiO_(3) catalyst exhibits higher activity for photocatalytic CO_(2) reduction to CH4 compared with single SnS_(2) or 3 DOM-SrTiO_(3),i.e.,its yield and selectivity of CH4 are 12.5μmol g^(-1) h^(-1) and 74.9%,re *** present work proposed the theoretical foundation of Z-scheme heterojunction construction for enhancing photocatalytic activity and selectivity for CO_(2) conversion.

关键词： 3DOM-SrTiO3 SnS_(2) Z-scheme heterojunction CO_(2)conversion CH4 selectivity

Algebraic Method‑Based Point‑to‑Point Trajectory Planning of an Under‑Constrained Cable‑Suspended Parallel Robot with Variable Angle and Height Cable Mast

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Chinese Journal of Mechanical Engineering 2020年第4期33卷 45-62页

作者： Tao zhao Bin Zi Sen Qian Jiahao zhao School of Mechanical Engineering Hefei University of TechnologyHefei 230009China Chemical Science and Engineering College North Minzu UniversityYinchuan 750021China

To avoid impacts and vibrations during the processes of acceleration and deceleration while possessing flexible working ways for cable-suspended parallel robots(CSPRs),point-to-point trajectory planning demands an under-constrained cable-suspended parallel robot(UCPR)with variable angle and height cable mast as described in this *** end-effector of the UCPR with three cables can achieve three translational degrees of freedom(DOFs).The inverse kinematic and dynamic modeling of the UCPR considering the angle and height of cable mast are *** motion trajectory of the end-effector comprising six segments is *** connection points of the trajectory segments(except for point P3 in the X direction)are devised to have zero instantaneous velocities,which ensure that the acceleration has continuity and the planned acceleration curve achieves smooth *** trajectory is respectively planned using three algebraic methods,including fifth degree polynomial,cycloid trajectory,and double-S velocity *** results indicate that the trajectory planned by fifth degree polynomial method is much closer to the given trajectory of the *** simulation and experiments are accomplished for the given trajectory based on fifth degree polynomial *** the points where the velocity suddenly changes,the length and tension variation curves of the planned and unplanned three cables are compared and *** OptiTrack motion capture system is adopted to track the end-effector of the UCPR during the *** effectiveness and feasibility of fifth degree polynomial planning are validated.

关键词： Under-constrained cable-suspended parallel robot Variable angle and height cable mast Inverse kinematic and dynamic modeling Algebraic method Point-to-point trajectory planning

LncR NA H19 and Target Gene-mediated Cleft Palate Induced by TCDD

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Biomedical and Environmental Sciences 2017年第9期30卷 676-680页

作者： GAO Li Yun ZHANG Feng Quan zhao wei Hui HAN Guang Liang WANG Xiao LI Qiang GAO Shan Shan WU wei Dong School of Public Health Xinxiang Medical UniversityXinxiang 453003HenanChina Department of Physiologyand Neurobiology Xinxiang Medical UniversityXinxiang 453003HenanChina

This study investigated the role of long non‐coding RNAs（lnc RNAs） in the development of the palatal tissues. Cleft palates in mice were induced by 2,3,7,8‐tetrachlorodibenzo‐p‐dioxin（TCDD）. Expression levels of long non‐coding RNA H19（lncR NA H19） and insulin‐like growth factor 2（IGF2） gene were measured by quantitative real‐time polymerase chain reaction（q RT‐PCR）. The rate of occurrence of cleft palate was found to be 100% by TCDD exposure, and TCDD could cause short upper limb, cerebral fissure, webbed neck, and short neck. The expression levels of lnc RNA H19 and IGF2 gene specifically showed embryo age‐related differences on E13, E14, and E15 in the palatal tissues. The expression levels of lnc RNA H19 and IGF2 gene showed an inverse relationship on E13, E14, and E15. These findings demonstrated that lnc RNA H19 and IGF2 can mediate the development of mouse cleft palate.

关键词： LncR NA H19 and Target Gene-mediated Cleft Palate Induced by TCDD RNA IGF Figure

Calibration of the superconducting gravimeter based on a cold atom absolute gravimeter at NIM

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Chinese Physics B 2018年第12期27卷 250-255页

作者： Qiyu Wang Jinyang Feng Shaokai Wang wei Zhuang Yang zhao Lishuang Mou Shuqing Wu National Institute of Metrology Beijing 100029China China Jiliang University Hangzhou 310018China

The scale factor of a superconducting gravimeter(SG) is usually calibrated by using simultaneous and co-located gravity measurements with the FG5-type absolute gravimeter(AG). In this paper, another new kind of absolute gravimetercold atom gravimeter(CAG) is first reported to calibrate the SG. Five-day side-by-side gravity measurements have been carried out by using our CAG(NIM-AGRb-1) to calibrate the SG(iGrav-012) located at Changping Campus of the National Institute of Metrology(NIM) of China. A weighted least-squares method is applied to determine the scale factor and the result is given as(-928.01 ± 0.73) nm·s^(-2)·V^(-1) with a precision of 0.79‰. We have demonstrated that a calibration precision of 1‰ level can be achieved after 3 days of parallel observations at spring tide. The obtained calibration results are then compared with the previous calibration by FG5 X-249, which shows that the calibration precision obtained by using NIM-AGRb-1 was slightly higher than FG5 X-249 with the same time interval. The factors affecting the calibration precision are analyzed in the calibrations by means of different AGs. Finally, several calibration experiments for SG iGrav-012 are discussed. The final scale factor is estimated as(-927.58 ± 0.36) nm·s^(-2)·V^(-1) with an accuracy of 0.39‰. Our main results demonstrate that the CAGs can be used for high-precision calibrations of SGs.

关键词： cold atom gravimeter calibration superconducting gravimeter scale factor