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| 1 | Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores显示文摘Alumina ceramics with different sintering temperatures in argon atmosphere were obtained using stereolithography-based 3D printing.The effects of sintering temperature on microstructure and physical and mechanical properties were investigated.The results show that the average particle size,shrinkage,bulk density,crystallite size,flexural strength,Vickers hardness,and nanoindentation hardness increased with the increase in sintering temperature,whereas the open porosity decreased with increasing sintering temperature.No change was observed in phase composition,chemical bond,atomic ratio,and surface roughness.For the sintered samples,the shrinkage in Z direction is much greater than that in X or Y direction.The optimum sintering temperature in argon atmosphere is 1350℃with a shrinkage of 3.0%,3.2%,and 5.5%in X,Y,and Z directions,respectively,flexural strength of 26.7 MPa,Vickers hardness of 198.5 HV,nanoindentation hardness of 33.1 GPa,bulk density of 2.5 g/cm^3,and open porosity of 33.8%.The optimum sintering temperature was 70℃higher than that sintering in air atmosphere when achieved the similar properties. | He LI Yongsheng LIU Yansong LIU Qingfeng ZENG Kehui HU Zhigang LU Jingjing LIANG | 2020 | Journal of Advanced Ceramics2020，9，2： | 13 |
| 2 | Hierarchical Ni-Co-S@Ni-W-O core-shell nanosheet arrays on nickel foam for high-performance asymmetric supercapacitors显示文摘镍钴硫化物(Ni-Co-S ) 由于他们的优秀传导性和高电气化学的电容在电子设备为申请吸引了广泛的注意。为了便于 Ni-Co-S,优秀的率能力和这些的周期的稳定性的大规模实际申请,混合物必须充分被利用。因此,镍泡沫上的层次 Ni-Co-S@Ni-W-O (Ni-Co-S-W ) 核心 / 壳混血儿 nanosheet 数组经由一个灵巧的三步的热水的方法此处被设计并且综合,由在氩空气下面在一个管状的炉子退火列在后面。混合结构直接作为一个自立的电极被装配,它展出了 1,988 F | Weidong He Zhifu Liang Keyu ji Qingfeng Sun Tianyou Zhai Xijin Xu | 2018 | Nano Research2018，11，3： | 7 |
| 3 | Zeolitic Imidazolate Framework 8-Derived Au@ZnO for Efficient and Robust Photocatalytic Degradation of Tetracycline显示文摘Summary of main observation and conclusion Tetracycline (TC) and other antibiotics accumulated in groundwater and soil pollute ecological environment and threaten human health. Gold nan oparticles doped on photocatalysts are able to enhance the photodegradation efficiency during removing these antibiotics, but preparation of Au nanoparticles of well-dispersion on photocatalysts remains challenging. In this work, zeolite imidazolate (ZIF-8) was employed as the precursor to prepare Au@ZnO photocatalyst via impregnation and in-situ reduction method to efficiently degrade the tetracycline in the aqueous solution. Au nanoparticles are of 10 nm in size and uniformly dispersed on the surfaces of ZnO microstructures. The as-prepared Au@ZnO is able to remove 85.5% of TC of 0.010 mg/mL within 2h, presenting higher photocatalytic activity than pure ZnO catalyst. Most importantly, the catalyst shows its superior stability after five cycles without structure and activity changing. The mechanism of the photocatalytic degradation was discussed in detail. | Bijun Gao Jin Zhou Hongliang Wang Guping Zhang Jinghui He Qingfeng Xu Najun Li Dongyun Chen Hua Li Jianmei Lu | 2019 | Chinese Journal of Chemistry2019，37，2： | 6 |
| 4 | A phosphatidic acid-binding lncRNA SNHG9 facilitates LATS1 liquid–liquid phase separation to promote oncogenic YAP signaling显示文摘Long noncoding RNAs(lncRNAs)are emerging as a new class of important regulators of signal transduction in tissue homeostasis and cancer development.Liquid–liquid phase separation(LLPS)occurs in a wide range of biological processes,while its role in signal transduction remains largely undeciphered.In this study,we uncovered a lipid-associated lncRNA,small nucleolar RNA host gene 9(SNHG9)as a tumor-promoting lncRNA driving liquid droplet formation of Large Tumor Suppressor Kinase 1(LATS1)and inhibiting the Hippo pathway.Mechanistically,SNHG9 and its associated phosphatidic acids(PA)interact with the C-terminal domain of LATS1,promoting LATS1 phase separation and inhibiting LATS1-mediated YAP phosphorylation.Loss of SNHG9 suppresses xenograft breast tumor growth.Clinically,expression of SNHG9 positively correlates with YAP activity and breast cancer progression.Taken together,our results uncover a novel regulatory role of a tumor-promoting lncRNA(i.e.,SNHG9)in signal transduction and cancer development by facilitating the LLPS of a signaling kinase(i.e.,LATS1). | Rui-Hua Li Tian Tian Qi-Wei Ge Xin-Yu He Cheng-Yu Shi Jun-Hong Li Zhen Zhang Fang-Zhou Liu Ling-Jie Sang Zuo-Zhen Yang Ya-Zhuo Liu Yan Xiong Qingfeng Yan Xu Li Huai-Qiang Ju Jian Liu Liang-Jing Wang Jian-Zhong Shao Wenqi Wang Tianhua Zhou Aifu Lin | 2021 | Cell Research2021，31，10： | 6 |
| 5 | Machine learning in nuclear physics at low and intermediate energies显示文摘Machine learning(ML)is becoming a new paradigm for scientific research in various research fields due to its exciting and powerful capability of modeling tools used for big-data processing tasks.In this review,we first briefly introduce the different methodologies used in ML algorithms and techniques.As a snapshot of many applications by ML,some selected applications are presented,especially for low-and intermediate-energy nuclear physics,which include topics on theoretical applications in nuclear structure,nuclear reactions,properties of nuclear matter,and experimental applications in event identification/reconstruction,complex system control,and firmware performance.Finally,we present a summary and outlook on the possible directions of ML use in low-intermediate energy nuclear physics and possible improvements in ML algorithms. | Wanbing He Qingfeng Li Yugang Ma Zhongming Niu Junchen Pei Yingxun Zhang | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，8： | 3 |
| 6 | Contents Variation Analysis ofγ-Amino Butyric Acid in Semen sojae praeparatum Fermentation Using Online Pre-Column Derivatization-HPLC显示文摘This paper reported the contents variation analysis ofγ-amino butyric acid(GABA)in Semen sojae praeparatum(SSP)which is a famous traditional Chinese medicine.High performance liquid chromatography(HPLC)was used and GABA was derivatized by online pre-column derivatization with o-phthalaldehyde(OPA).To validate this method,the precision,stability,repeatability and recovery were discussed.In the concentration range from 0.0125 to 0.400 mg/m L,the calibration curve for GABA was linear and the regression equation was obtained with correlation coefficient(R2)of 0.9999.Relatively high levels of GABA exist in SSP and the content changes of GABA at different time points during the fermenting process were detected.At the'yellow cladding'stage,GABA level was very low or even undetectable;the'secondary fermentation'stage witnessed a rapid increase of GABA content to 1.39-5.52 mg/g,which remained stable after 18 days of'secondary fermentation'.This study demonstrated that GABA was generated at the'secondary fermentation'stage,revealing the significance and rationality of the'secondary fermentation'stage in the fermenting process of SSP.On the other hand,it suggested the downside of taking soy isoflavones as the only measurement in existing quality assessment and optimization approach for the fermenting process of SSP. | WENG Meizhi HE Jing REN Jiaxiu LIANG Yonghong CHEN Qingfeng SU Mingsheng WANG Liyuan XIE Xiaomei | 2021 | Wuhan University Journal of Natural Sciences2021，26，1： | 2 |
| 7 | A mini-review on ZnIn_(2)S_(4)-Based photocatalysts for energy and environmental application显示文摘As one of the most attractive and eco-friendly technologies,semiconductor photocatalysis is demonstrated as a potential strategy to solve global energy shortage environmental pollution problems.Regarding semiconductor-based photocatalysts,Zinc indium sulfide(ZnIn_(2)S_(4)) with various morphological structures has become research hotspots owing to its superior visible light absorption,high chemical durability and low cost.Nevertheless,the photocatalytic activity of pristine ZnIn_(2)S_(4) is unsatisfactory due to limited range of visible light absorption and fast recombination rate of light-induced electrons and holes.Different modification strategies,such as metal deposition,element doping,vacancy engineering and semiconductor combination,have been systematically developed for enhancing the photocatalytic performance of ZnIn_(2)S_(4) materials.In order to promote further developments of ZnIn_(2)S_(4) in photocatalytic applications,this mini-review summarizes the progress of recent research works for the construction of highly activity ZnIn_(2)S_(4)-based photocatalysts for the first time.In addition,the typical applications of ZnIn_(2)S_(4)-based photocatalytic materials have been critically reviewed and described such as in hydrogen evolution from photocatalytic water splitting,carbon dioxide photoreduction,and treatment of water pollution.The current challenges and further prospects for the development of ZnIn_(2)S_(4) semiconductor photocatalysts are finally pointed out. | Guping Zhang Hao Wu Dongyun Chen Najun Li Qingfeng Xu Hua Li Jinghui He Jianmei Lu | 2022 | Green Energy & Environment2022，7，2： | 2 |
| 8 | ALUMINIUM ELECTROLYSIS AT 800~900℃—A NEW APPROACH TO ENERGY SAVINGS显示文摘The freezing points of cryolite-alumina melts with the addition of AIF3,CaF2,MgF2 andLiF were measured.It was found that there was a wide range of lower freezing points below800℃.Various physico-chemical and electro-chemical properties at 30℃ above the correspond-ing freezing points were measured.Current efficiences in a laboratory bench scale 100A cellwere high(85~90% at 800~900 C),was low.It is assumed thataluminium electrolysis maybe carried out at 800~900 C with lower energy consumption. | Qiu,Zhuxian He,Minghong Li,Qingfeng Northeastern University,Shenyang 110006,China | 1993 | 中国有色金属学会会刊:英文版1993，3，4： | 2 |
| 9 | A quasi-3D Fano resonance cavity on optical fiber end-facet for high signal-to-noise ratio dip-and-read surface plasmon sensing显示文摘Surface plasmon devices mounted at the end-facets of optical fibers are appealing candidates for rapid and point-of-care sensing applications,by offering a special dip-and-read operation mode.At present,these devices’noise-equivalent limits-of-detection lag far behind the free-space counterparts,leaving them incapable of most biosensing applications.Here we report a quasi-3D Fano resonance cavity and its fabrication method to fundamentally improve the quality factor and coupling efficiency for fiber-coupled surface plasmon resonance.In this device,the Fano resonance combines the high coupling efficiency of a Fabry-Pérot etalon and the high quality factor resonance of a plasmonic crystal cavity.The quasi-3D device was fabricated on a planar substrate and transferred to a single-mode fiber end-facet,which requires a low-adhesion yet surface-plasmon-tunneling interface between the device and the planar substrate.Such an interface was realized with a nanocap-slit unit structure,of which the plasmonic crystal was consisted.A noise-equivalent limit of detection of~10-7 RIU was experimentally obtained,allowing bovine serum albumin physical adsorption to be distinguished at ng mL-1 level concentrations.Therefore,breaking through the long-standing signal-to-noise ratio bottleneck,this work makes fiber end-facet surface plasmon devices into one of high sensitivity label-free sensing technologies.At the same time,it provides an enabling top-down fabrication technology for making 3D plasmonic structures on fiber end-facets at the nanometer scale. | Xiaqing Sun Zeyu Lei Hao Zhong Chenjia He Sihang Liu Qingfeng Meng Qingwei Liu Shengfu Chen Xiangyang Kong Tian Yang | 2022 | Light(Advanced Manufacturing)2022，3，4： | 2 |
| 10 | Design Fe-based Eutectic Medium-Entropy Alloys Fe_2NiCrNb_x显示文摘High-entropy alloys have attracted broad research interests due to their unique and intriguing mechanical properties. As a category of high-entropy alloys, eutectic high-entropy alloys combine the advantages of eutectic and high-entropy alloys, with excellent mechanical properties and casting properties. Some eutectic high-entropy alloys have been developed and shown exciting properties. In this paper, based on the physical metallurgy of eutectic high-entropy alloy, medium-entropy alloy Fe_(2)NiCrNb_(x) was designed. The as-cast alloy is composed of FCC and Laves phases, Nb element promotes the formation of primary Laves phase, and the hardness of the alloy increases with the increase in Nb element. Among the four alloys, the eutectic chemical composition at eutectic point is Fe_(2)NiCrNb_(0.34);the alloy has a good strength and plastic balance. The ultimate comprehensive strength is 2267 MPa, and the fracture strain is 30.8%. The experiment data and analyses identified the eutectic points and the excellent mechanical behavior. Moreover, the expensive Co element was replaced by Fe element. This cheap medium-entropy alloy has promising prospect in the consideration of the cost performance ratio. | Jiafen Song Zishu Chai Jian Zheng Qingfeng Wu Feng He Zenan Yang Junjie Li Jincheng Wang Haiou Yang Zhijun Wang | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，8： | 2 |
| 11 | Time-Frequency(scale) Analysis and Diagnosis for Nonstationary Dynamic Signals of Machinery显示文摘TimeFrequency(scale)AnalysisandDiagnosisforNonstationaryDynamicSignalsofMachineryHeZhengjiaMengQingfengZhaoJuyuanLiuXinmingDe... | He Zhengjia Meng Qingfeng Zhao Juyuan Liu Xinming Dept. of Mechanical Engineering, Xi’an Jiaotong University Xi’an, 710049 P.R. CHINA | 1996 | International Journal of Plant Engineering and Management1996，1，1： | 2 |
| 12 | Data-Driven Hybrid Neural Fuzzy Network and ARX Modeling Approach to Practical Industrial Process Identification显示文摘Dear editor,This letter presents a practical industrial process identification scheme.More specifically,to improve the identification accuracy of practical process,a decoupled identification scheme is developed based on neural fuzzy network and autoregressive exogenous(ARX)model,which is based on multi-signal sources.The multiple signal sources include binary signals and random signals.Experimental results of pH neutralization process show that developed identification scheme can provide accurate identification accuracy. | Feng Li Tian Zheng Naibao He Qingfeng Cao | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，9： | 2 |
| 13 | Protoncon ductivity of phosphoric acid doped polybenzimidazole and its composites with inorganic proton conductors显示文摘 | He Ronghuan Li Qingfeng Xiao Gang | 2003 | J Membr Sci2003，226，： | 1 |
| 14 | Study on a new air-gap membrane distillation module for desalination 显示文摘 | Geng Hongxin Wu Haoyun Li Pingli He Qingfeng | 2014 | Desalination2014，334，1： | 1 |
| 15 | Experimental study of hollow fiber AGMD modules with energy recovery for high saline water desalination 显示文摘 | Geng Hongxin He Qingfeng Wu Haoyun Li Pingli Zhang Chunyao Chang Heying | 2014 | Desalination2014，344，： | 1 |
| 16 | The CO poisoning effect in PEMFCs operational at temperatures up to 200 ℃ 显示文摘 | Li Qingfeng He Ronghuan Gao Ji-An | 2003 | Journal of the Electrochemical Society2003，150，12： | 1 |
| 17 | In vitro and in vivo study of thymosin alphal biodegradable in situ forming poly ( lac- tide-co-glycolide) implants显示文摘 | Qingfeng Liu He Zhang Guichen Zhou | 2010 | Int J Pharm2010，397，12： | 1 |
| 18 | Impact of Untreated Sedimentation Tank Sludge Water Recycle on Water Quality During Treatment of Low Turbidity Water显示文摘The overall purpose of this research is to examine the impact of untreated sedimentation tank sludge water( USTSW) recycle on water quality during treatment of low turbidity water in coagulation—sedimentation processes. 950 m L of raw water and different concentrations of 50 m L USTSW are injected into six 1 000 m L beakers without coagulant.The results indicate that USTSW characterized as accumulated suspended solids and organic matter has active ingredients,which possess the equivalent function of coagulant. The optimal blended water turbidity is in the range of 10-20 NTU,within which USTSW recycle achieves the highest save coagulant rate. The mechanism of strengthening coagulation effect when USTSW recycle mainly depends on the chemical effect and physical effect. What is more,through scanning electron microscopy( SEM),it is found that the floc structures with USTSW recycle are more compact than those without USTSW recycle. Besides,the water quality parameters of color,NH3-N,CODMn,UV254,total aluminum,total manganese when USTSW recycle is better than the raw water without recycle,indicating that USTSW recycle can improve water quality with strengthening coagulation effect. | Ronggang Xu Yongpeng Xu Fuyi Cui Li He Dong Wang Qingfeng Su | 2015 | Journal of Harbin Institute of Technology(New Series)2015，22，4： | 1 |
| 19 | Research and development of Chinese anti-COVID-19 drugs显示文摘The outbreak and spread of coronavirus disease 2019(COVID-19)highlighted the importance and urgency of the research and development of therapeutic drugs.Very early into the COVID-19 pandemic,China has begun developing drugs,with some notable progress.Herein,we summarizes the anti-COVID-19 drugs and promising drug candidates originally developed and researched in China.Furthermore,we discussed the developmental prospects,mechanisms of action,and advantages and disadvantages of the anti-COVID-19 drugs in development,with the aim to contribute to the rational use of drugs in COVID-19 treatment and more effective development of new drugs against severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and the variants.Neutralizing antibody is an effective approach to overcome COVID-19.However,drug resistance induced by rapid virus mutation will likely to challenge neutralizing antibodies.Taking into account current epidemic trends,small molecule drugs have a crucial role in fighting COVID-19 due to their significant advantage of convenient administration and affordable and broad-spectrum.Traditional Chinese medicines,including natural products and traditional Chinese medicine prescriptions,contribute to the treatment of COVID-19 due to their unique mechanism of action.Currently,the research and development of Chinese anti-COVID-19 drugs have led to some promising achievements,thus prompting us to expect even more rapidly available solutions. | Xiwei Ji Xiangrui Meng Xiao Zhu Qingfeng He Yimin Cui | 2022 | Acta Pharmaceutica Sinica B2022，12，12： | 1 |
| 20 | Vapour losses of molten low temperature electrolytes in aluminum electrolysis 显示文摘 | Zhuxian Qiu Minghong He Qingfeng Li | 2000 | Aluminum2000，76，3： | 1 |
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