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| 1 | Chemical composition of PM_(2.5) during winter in Tianjin,China显示文摘PM2.5 samples for 24 h were collected during winter in Tianjin,China. The ambient mass concentration and chemical composition of the PM2.5 were determined. Ionic species were analyzed by ion chromatog-raphy,while carbonaceous species were determined with the IMPROVE thermal optical reectance(TOR) method,and inorganic elements were measured by inductively coupled plasma-atomic emission spec-trometer. The daily PM2.5 mass concentrations ranged from 48.2 to 319.2 g/m3 with an arithmetic average of 144.6 g/m3. The elevated PM2.5 in winter was mostly attributed to combustion sources such as vehicle exhaust,heating,cooking and industrial emissions,low wind speeds and high relative humidity(RH) ,which were favorable for pollutant accumulation and formation of secondary pollutants. By chem-ical mass balance,it was estimated that about 89.1% of the PM2.5 mass concentrations were explained by carbonaceous species,secondary particles,crustal matters,sea salt and trace elements. Organic material was the largest contributor,accounting for about 32.7% of the total PM2.5 mass concentrations. SO42-,NO3-,Cl- and NH4+ were four major ions,accounting for 16.6%,11.5%,4.7% and 6.0%,respectively,of the total mass of PM2.5. | Jinxia Gu Zhipeng Bai Weifang Li Liping Wu Aixia Liu Haiyan Dong Yiyang Xie | 2011 | Particuology2011，9，3： | 60 |
| 2 | Cold-chain transportation in the frozen food industry may have caused a recurrence of COVID-19 cases in destination:Successful isolation of SARS-CoV-2 virus from the imported frozen cod package surface显示文摘Coronavirus disease 2019(COVID-19)pandemic has spread in 220 countries/regions towreak havoc to human beings around theworld.At present,the second wave of COVID-19 has begun in many European countries.The complete control of COVID-19 is very urgent.Although China quickly brought the virus under control,there have been eight sporadic outbreaks in China since then.Both in Xinfadi of Beijing and Dalian outbreak of COVID-19,environmental swab samples related to imported cold chain food were tested nucleic acid positive for SARS-CoV-2.In this outbreak in Qingdao,we directly isolated SARS-CoV-2 from the cod outer package's surface swab samples.This is the first time worldwide,SARS-CoV-2 were isolated from the imported frozen cod outer package's surface,which showed that imported frozen food industry could import SARS-CoV-2 virus. | Peipei Liu Mengjie Yang Xiang Zhao Yuanyuan Guo Liang Wang Jing Zhang Wenwen Lei Weifang Han Fachun Jiang William J.Liu George F.Gao Guizhen Wu | 2020 | Biosafety and Health2020，2，4： | 41 |
| 3 | Rational design of nitrogen doped hierarchical porous carbon for optimized zinc-ion hybrid supercapacitors显示文摘Aqueous rechargeable zinc-ion hybrid supercapacitors are considered to be a promising candidate for large-scale energy storage devices owing to their high safety,long life,and low price.In this paper,a nitrogen doped hierarchical porous carbon is evaluated as the cathode for aqueous rechargeable zinc-ion hybrid supercapacitors.Benefiting from the synergistic merits of excellent structural features of N-HPC and tiny zinc dendrite of Zn anode in ZnSO4 electrolyte,the zinc-ion hybrid supercapacitor exhibits excellent energy storage performance including high capacity of 136.8 mAh·g^−1 at 0.1·Ag^−1,high energy density of 191 Wh·kg^−1,large power density of 3,633.4 W·kg^−1,and satisfactory cycling stability of up to 5,000 cycles with a capacity retention of 90.9%.This work presents a new prospect of developing high-performance aqueous rechargeable zinc ion energy storage devices. | Penggao Liu Yang Gao Yangyang Tan Weifang Liu Yanping Huang Jun Yan Kaiyu Liu | 2019 | Nano Research2019，12，11： | 10 |
| 4 | Failure Analysis of Aviation Torsional Springs显示文摘裂缝和破裂发生在汇编进程期间到在航空机制使用的扭力的弹簧的一种类型。除视觉检查以外,另外的试验性的技术使用了因为调查:1 ) 由扫描电子显微镜学(SEM ) 的破裂特征,损坏形态学和金属断面的显微镜观察, 2 ) 盖住的光谱分析, 3 ) 裂缝的 metallographic 观察并且 4 ) 氢内容测试。结果通过制造过程和试验性的数据的分析被获得。因为微观结构的变化都没被发现,失败与材料无关。裂缝和破裂在内部表面上开始,裂缝在镉 plating 前并且在弯屈以后开始。没有明显的压力腐蚀裂缝在裂缝来源区域附近被发现。裂缝的开的方向与剩余一致春天的张力的应力内部表面,和弹簧是容易的联系在弯屈的春天和镉 plating 之间的氢媒介。裂缝被引起由导致氢在剩余的行动下面裂开推迟张力的应力和氢。 | HOU Weiguo ZHANG Weifang LIU Xiao WANG Zongren DING Meili | 2011 | Chinese Journal of Aeronautics2011，24，4： | 7 |
| 5 | Triglycerides and ratio of triglycerides to high-density lipoprotein cholesterol are better than liver enzymes to identify insulin resistance in urban middle-aged and older non-obese Chinese without diabetes显示文摘 | Sun Yu Li Wenjuan Hou Xinguo Wang Chuan Li Chengqiao Zhang Xiuping Yang Weifang Ma Zeqiang Wang Weiqing Ning Guang Zheng Huizhen Ma Aixia Song Jun Lin Peng Liang Kai Liu Fuqiang Gong Lei Wang Meijian Xiao Juan Yan Fei Yang Junpeng Wang Lingshu Tian Meng Liu Jidong Zhao Ruxing Zhu Ping Chen Li | 2014 | Chinese Medical Journal2014，，10： | 7 |
| 6 | Optimal Design and Force Control of a Nine-Cable-Driven Parallel Mechanism for Lunar Takeoff Simulation显示文摘Traditional simulation methods are unable to meet the requirements of lunar takeo simulations, such as high force output precision, low cost, and repeated use. Considering that cable-driven parallel mechanisms have the advantages of high payload to weight ratio, potentially large workspace, and high-speed motion, these mechanisms have the potential to be used for lunar takeo simulations. Thus, this paper presents a parallel mechanism driven by nine cables. The purpose of this study is to optimize the dimensions of the cable-driven parallel mechanism to meet dynamic workspace requirements under cable tension constraints. The dynamic workspace requirements are derived from the kinematical function requests of the lunar takeo simulation equipment. Experimental design and response surface methods are adopted for building the surrogate mathematical model linking the optimal variables and the optimization indices. A set of dimensional parameters are determined by analyzing the surrogate mathematical model. The volume of the dynamic workspace increased by 46% after optimization. Besides, a force control method is proposed for calculating output vector and sinusoidal forces. A force control loop is introduced into the traditional position control loop to adjust the cable force precisely, while controlling the cable length. The e ectiveness of the proposed control method is verified through experiments. A 5% vector output accuracy and 12 Hz undulation force output can be realized. This paper proposes a cable-driven parallel mechanism which can be used for lunar takeo simulation. | Wangmin Yi Yu Zheng Weifang Wang XiaoqiangTang Xinjun Liu Fanwei Meng | 2019 | Chinese Journal of Mechanical Engineering2019，32，4： | 5 |
| 7 | 17α-Ethynylestradiol biodegradation in different river-based groundwater recharge modes with reclaimed water and degradation-associated community structure of bacteria and archaea显示文摘This study investigated 17α-ethynylestradiol(EE2) biodegradation process and primary metabolic pathways associated with community structures of microorganism during groundwater recharge using reclaimed water. The attenuation rate is 1.58 times higher in wetting and drying alternative recharge(WDAR) than in continual recharge(CR). The primary biotransformation pathways of EE2 in WDAR system began with the oxidation of C-17 on ring D to form a ketone group, and D-ring was subsequently hydroxylated and cleaved. In the CR system, the metabolic pathway changed from the oxidation of C-17 on ring D to hydroxylation of C-4 on ring A, and ring A or B subsequently cleaved; this transition was related to DO, and the microbial community structure. Four hundred fifty four pyrosequencing of 16 s r RNA genes indicated that the bacterial communities in the upper layer of the WDAR system were more diverse than those found in the bottom layer of the CR system; this result was reversed for archaea. Unweighted Uni Frac and taxonomic analyses were conducted to relate the change in bacterial community structure to the metabolic pathway. Microorganism community diversity and structure were related to the concentrations of dissolved oxygen, EE2 and its intermediates in the system. Five known bacterial classes and one known archaeal class, five major bacterial genera and one major archaeal genus might be involved in EE2 degradation. The findings of this study provide an understanding of EE2 biodegradation in groundwater recharge areas under different recharging modes and can facilitate the prediction of the fate of EE2 in underground aquifers. | Weifang Ma Jiaji Sun Yangyao Li Xiaoxiu Lun Dan Shan Chao Nie Miaomiao Liu | 2018 | Journal of Environmental Sciences2018，30，2： | 5 |
| 8 | Arsenic(V)removal from groundwater by GE-HL nanofiltration membrane:effects of arsenic concentration,pH,and co-existing ions显示文摘A laboratory-scale investigation was performed to study arsenic(As(V))removal by negatively charged GE-HL nanofiltration(NF)membrane in simulated drinking water.Effects of As(V)concentration(0–200μg·L–1),pH,and co-ions and counter-ions were investigated.The NF membrane presented good stability,and the rejection rates exceeded 90%.The rejection rates of As(V)decreased with the increase of As(V)concentration,while it increased with the increase of pH(reached 96%at pH 6.75).Moreover,a negative relationship was observed between the co-existing ions of Cl^(–),Na^(+),SO_(4)^(2–),and Ca^(2+)and the removal of As(V),in which bivalent ions presented more significant effects than monovalent ions. | Xiaowei WANG Wenjun LIU Desheng LI Weifang MA | 2009 | Frontiers of Environmental Science & Engineering2009，3，4： | 5 |
| 9 | Opening of the inward rectifier potassium channel alleviates maladaptive tissue repair following myocardial infarction显示文摘里面的整流器钾水流(IK1 ) 的激活隧道被报导了与室的心律不齐的抑制被联系。在这研究,我们测试了与 zacopride (ZAC ) IK1 隧道开在心肌的梗塞以后涉及织物修理的调整的假设。Sprague-Dawley 老鼠服从于冠的动脉结扎, ZAC intraperitoneally 被管理(15 諟?牦吗? | Chengfang Liu Enli Liu Tiane Luo Weifang Zhang Rongli He | 2016 | Acta Biochimica et Biophysica Sinica2016，48，8： | 4 |
| 10 | A CCAAT-binding factor,SlNFYA10,negatively regulates ascorbate accumulation by modulating the D-mannose/L-galactose pathway in tomato显示文摘Ascorbic acid(AsA),an important antioxidant and growth regulator,and it is essential for plant development and human health.Specifically,humans have to acquire AsA from dietary sources due to their inability to synthesize it.The AsA biosynthesis pathway in plants has been elucidated,but its regulatory mechanism remains largely unknown.In this report,we biochemically identified a CCAAT-box transcription factor(SlNFYA10)that can bind to the promoter of SlGME1,which encodes GDP-Man-3’,5’-epimerase,a pivotal enzyme in the D-mannose/L-galactose pathway.Importantly,SlNFYA10 simultaneously binds to the promoter of SlGGP1,a downstream gene of SlGME1 in the Dmannose/L-galactose pathway.Binding assays in yeast and functional analyses in plants have confirmed that SlNFYA10 exerts a negative effect on the expression of both SlGME1 and SlGGP1.Transgenic tomato lines overexpressing SlNFYA10 show decreased levels of SlGME1 and SlGGP1 abundance and AsA concentration in their leaves and fruits,accompanied by enhanced sensitivity to oxidative stress.Overall,SlNFYA10 is the first CCAAT-binding factor identified to date to negatively regulate the AsA biosynthetic pathway at multiple sites and modulate plant responses to oxidative stress. | Weifang Chen Tixu Hu Jie Ye Bing Wang Genzhong Liu Ying Wang Lei Yuan Jiaming Li Fangman Li Zhibiao Ye Yuyang Zhang | 2020 | Horticulture Research2020，7，1： | 3 |
| 11 | Oxide cathodes for sodium-ion batteries:Designs,challenges,and perspectives显示文摘Sodium-ion batteries(SIBs),which are an alternative to lithium-ion batteries(LIBs),have attracted increasing attention due to their low cost of Na resources and similar Na storage mechanism to LIBs.Compared with anode materials and electrolytes,the development of cathode materials lags behind.Therefore,the key to improving the specific energy and promoting the application of SIBs is to develop high-performance sodium intercalation cathode materials.Transition-metal oxides are one of the most promising cathode materials for SIBs owing to their excellent energy density,high specific discharge capacity,and environmentally friendly nature.In the present work,the latest progress in the research of transition-metal oxides is summarized.Moreover,the existing challenges are discussed,and a series of strategies are proposed to overcome these drawbacks.This review aims at providing guidance for the development of metal oxides in the next stage. | Tao Chen Baixue Ouyang Xiaowen Fan Weili Zhou Weifang Liu Kaiyu Liu | 2022 | Carbon Energy2022，4，2： | 3 |
| 12 | Effects of psycho-scene-drama on empathic ability of patients with chronic schizophrenia显示文摘Objective:The purpose of the current study was to determine the effects of psycho-scene drama on the empathic ability of patients with chronic schizophrenia.Methods:One hundred sixteen in-patients with chronic schizophrenia were randomly di-vided into study and control groups(n=58 cases each).The original anti-psychotic drugs were not changed in either group.In the study group,the therapy was combined with psychological scene drama with a treatment course of 3 months.Before and after treatment,the interpersonal reaction index scale(Chinese version[IRI-C]),negative syndrome scale(SANS),social function assessment scale for patients with mental diseases(SSPI),Rosenberg self-esteem scale(SES),the emotional-social loneliness inventory(ESLI),and the Texas social behavior inventory(TSBI)were utilized for measurements.Results:A comparison of the IRI-C total,PT,FS,and EC factor scores before and after treatment in the study group was significantly different(P<0.01);the PD factor score before and after treatment was not statistically significant(P>0.05).A comparison of the IRI-C total score and each factor score before and after treatment in the control group was not significantly different(P>0.05).A comparison of the IRI-C total,PT,and EC factor scores between the study and control groups after treatment was significantly different(P<0.05).A comparison of the FS factor score between the study and control groups before and after treatment was significantly different(P<0.01);the PD factor score was not significantly different(P>0.05).A comparison of the SANS total,SSPI total,SES total,and ESLI total scores between the two groups after treatment was significantly different(P<0.05).Conclusion:The psycho-scene drama can improve the empathic ability of patients with chronic schizophrenia,improve the negative symptoms and social function,increase the self-esteem and self-confidence,and reduce the loneliness in social interactions. | Hongmei Tian Weifang Niu Ping Liu Na Wang Huijing Yu Zhanhong Zhao | 2014 | Family Medicine and Community Health2014，2，4： | 2 |
| 13 | Novel optical properties and induced magnetic moments in Ru-doped hybrid improper ferroelectric Ca3Ti2O7显示文摘Hybrid improper ferroelectric Ca3Ti2O7 and Ca3Tii 9RuO.iO7 ceramics were successfully synthesized by conventional solid-state reaction method.Two strongest diffraction peaks located around 2θ=33°shifted towards the lower angle region with Ru substitution,reflecting structure variation.Grain growth and higher oxygen vacancy concentration after doping resulted in a reduction in the coercive field about 20 kV/cm.Optical bandgap estimated by UV-vis diffuse reflectance(DR)spectrum and X-ray photoelectron spectroscopy(XPS)valence band spectra showed a decreasing trend due to the existence of impurity energy level upon Ru doping,which was consistent with the results of first-principles calculations.The origin of the unexpected induced magnetic moments in Ru-dope Ca3Ti2O7 is also discussed. | Xingxing WU Shouyu WANG Winnie WONG-NG Qiang GU Yao JIANG Chao WANG Shuang MA Weifang LIU | 2021 | Journal of Advanced Ceramics2021，10，1： | 2 |
| 14 | Single-phase P2-type layered oxide with Cu-substitution for sodium ion batteries显示文摘The development of high-performance layered oxide cathodes for sodium ion batteries (SIBs) continues to facing be hindered by severe challenges to date.Herein,a single-phase P2-Na0.67Mn0.6Ni0.2Co0.1Cu0.1O2(NMNCC) comprising multiple-layer-oriented stacked nanoflakes is designed and synthesized via a simple sol-gel method.The large lattice parameters ensure a large three-dimensional frame,which enables the diffusion of sodium ions.Owing to its optimal morphology structure modulation transition metal substitution strategy,the MNCC electrode delivers a reversible capacity of 131.3 mAh g^-1 at 0.1 C with retention of 86.7%after 200 cycles.In addition,it provides an initial capacity of 86.7 mAh g^-1,and a retention of 80.0%after 500 cycles even at a current density of up to 1 A g^-1.The stable single-phase structure and slight volume shrinkage observed after Na+extraction further delay structural degradation.High Na+mobility and low Na+diffusion resistance are also guarantee the excellent rate performance of the NMNCC electrode.Thus,we determine that the NMNCC cathode is significant in the advancement of promising novel layered oxide cathodes. | Tao Chen Weifang Liu Yi Zhuo Hang Hu Maolan Zhu Ruizheng Cai Xinxin Chen Jun Yan Kaiyu Liu | 2020 | Journal of Energy Chemistry2020，29，4： | 2 |
| 15 | Mixed matrix membrane containing metal oxide nanosheets for efficient CO_(2)separation显示文摘The two-dimensional(2D)nanosheet zinc cobaltate(ZnCo_(2)O_(4))was added into polyether block amide(Pebax)matrix to prepare mixing matrix membrane(MMM)for separating carbon dioxide(CO_(2))/methane(CH4)gas mixture.The 2D porous ZnCo_(2)O_(4)nanosheets were composed of chemically interconnected metal oxide nanoparticles.The ZnCo_(2)O_(4)nanoparticles in the nanosheets constructed large-quantity pores of 11.78 nm and provided abundant transfer channels for gas molecule.Moreover,the synergistic effect of bimetallic Zn^(2+)and Co^(2+)would promote the generation of oxygen vacancies(Oδ-),which could provide more CO_(2)(Cδ+)adsorption sites,thereby increased the selectivity of the membrane.The large aspect ratio of the ultra-thin ZnCo_(2)O_(4)nanosheets showed better dispersion in the membrane.The pure gas separation performance data showed the CO_(2)permeability and CO_(2)/CH4 selectivity of Pebax/ZnCo_(2)O_(4)membrane were 139.10 Barrer and 15.38,respectively,when the filling amount was 0.5 wt%.Compared with pure Pebax membrane,the separation performance(permeability and selectivity)were increased with 165.67%and 75.57%,respectively. | Weifang Zhu Fu Liu Minmin Gou Ruili Guo Xueqin Li | 2021 | Green Chemical Engineering2021，2，1： | 2 |
| 16 | A novel synthetic small molecule YF-452 inhibits tumor growth through antiangiogenesis by suppressing VEGF receptor 2 signaling显示文摘Tumor angiogenesis is characterized by abnormal vessel morphology, endowing tumor with highly hypoxia and unresponsive toward treatment. To date, mounting angiogenic factors have been discovered as therapeutic targets in antiangiogenic drug development. Among them, vascular endothelial growth factor receptor 2 (VEGFR2) inhibitors exerts potent antiangiogenic activity in tumor therapy. Therefore, it may provide a valid strategy for cancer treatment through targeting the tumor angiogenesis via VEGFR2 pathway. In this study, we established a high-profile compounds library and certificated a novel compound named N-(N-pyrrolidylacetyl)-9-(4-bromobenzyl)-1,3,4,9-tetrahydro-β-carboline (YF-452), which remarkably inhibited the migration, invasion and tube-like structure formation of human umbilical vein endothelial cells (HUVECs) with little toxicity invitro. Rat thoracic aorta ring assay indicated that YF-452 significantly blocked the formation of microvascular exvivo. In addition, YF-452 inhibited angiogenesis in chick chorioallantoic membrane (CAM) and mouse corneal micropocket assays. Moreover, YF-452 remarkably suppressed tumor growth in xenografts mice model. Furthermore, investigation of molecular mechanism revealed that YF-452 inhibited VEGF-induced phosphorylation of VEGFR2 kinase and the downstream protein kinases including extracellular signal regulated kinase (ERK), focal adhesion kinase (FAK) and Src. These results indicate that YF-452 inhibits angiogenesis and may be a potential antiangiogenic drug candidate for cancer therapy. | Yongrui Liu Yuan He Feifei Yang Xiaonan Cong Jinhua Wang Shihong Peng Dan Gao Weifang Wang Liping Lan Xuexiang Ying Mingyao Liu Yihua Chen Zhengfang Yi | 2017 | Science China(Life Sciences)2017，60，2： | 2 |
| 17 | Synthesis and characterization of a sensitive and selective Fe^(3+) fluorescent sensor based on novel sulfonated calix[4]arene-based host-guest complex显示文摘A novel fluorescent sensor was prepared from sulfonated calix[4]arene(SC4A)by the host-guest com-plexation method using the fluorescent dye rhodamine B(RB)as a structure-directing agent.The crystal structure of the host-guest complex(RB@(SC4A)_(3))was confirmed by X-ray diffraction studies while its performance and sensing mechanism for metal ion pollutants were characterized using fluorescence and nuclear magnetic resonance spectroscopies.The results showed that RB@(SC4A)_(3) had a triangular branch structure resulting from host-guest mediation of the interactions between the three SC4A host molecules and the three terminal groups of the guest molecule RB.The host-guest complex exhibited sensitive and selective sensing towards Fe^(3+)ions via a fluorescence quenching mechanism.The results indicated that RB@(SC4A)_(3) could be a promising sensitive and selective fluorescent sensor for metal ion pollutants mon-itoring.It also provided new insights into the synthesis of calixarene-based host-guest complex. | Ran Cen Ming Liu Jihong Lu Weifang Zhang Jingjing Dai Xi Zeng Zhu Tao Xin Xiao | 2022 | Chinese Chemical Letters2022，33，5： | 2 |
| 18 | Rational modulation of emerging MXene materials for zinc-ion storage显示文摘Currently,emerging battery technologies are being studied intensively.The lack of ideal electrode materials remains a key hindrance to further development of new batteries.The novel MXene material,due to its unique structural characteristics and physicochemical properties,shows the ability to enhance the electrochemical performance of the electrode.In addition to the adjustable layer spacing,because of excellent electrical conductivity,rich chemical composition,and controllable surface chemistry,MXene has the potential for use in diverse applications as an ideal electrode material in various battery systems.This review covers the recent progress achieved in research of the zinc-ion energy storage of MXenes,including MXene-based cathodes,MXenederived cathodes,MXene-modified zinc anodes,and electrolyte additives.Moreover,further structural design and reaction mechanisms of MXenes in zinc-ion storage are explored. | Penggao Liu Weifang Liu Kaiyu Liu | 2022 | Carbon Energy2022，4，1： | 2 |
| 19 | Screening and identification of a novel organic solvent-stable lipaseproducer 显示文摘 | Shu liu Yao weifang Wei Fengxu | 2009 | Annals of Microbiology2009，59，3： | 1 |
| 20 | Poly(N-Vinylpyrrolidone)-Grafted Poly(Dimethylsiloxane)Surfaces with Tunable Microtopography and Anti-Biofouling Properties显示文摘 | Liu Xiaoli Tong Weifang Wu Zhaoqiang | 2013 | RSC Adv2013，3，14： | 1 |
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