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| 1 | Guidance law with impact time and impact angle constraints显示文摘A novel closed-form guidance law with impact time and impact angle constraints is pro- posed for salvo attack of anti-ship missiles, which employs missile's normal acceleration (not jerk) as the control command directly. Firstly, the impact time control problem is formulated as tracking the designated time-to-go (the difference between the designated impact time and the current flight time) for the actual time-to-go of missile, and the impact angle control problem is formulated as tracking the designated heading angle for the actual heading angle of missile. Secondly, a biased proportional navigation guidance (BPNG) law with designated heading angle constraint is constructed, and the actual time-to-go estimation for this BPNG is derived analytically by solving the system differential equations. Thirdly, by adding a feedback control to this constructed BPNG to eliminate the time-to-go errorthe difference between the standard time-to-go and the actual time-to-go, a guidance law with adjustable coefficients to control the impact time and impact angle simultaneously is developed. Finally, simulation results demonstrate the performance and feasibility of the proposed approach. | Zhang Youan Ma Guoxin Liu Aili | 2013 | Chinese Journal of Aeronautics2013，26，4： | 50 |
| 2 | Exosome-functionalized polyetheretherketone-based implant with immunomodulatory property for enhancing osseointegration显示文摘The host immune response effecting on biomaterials is critical to determine implant fates and bone regeneration property.Bone marrow stem cells(BMSCs)derived exosomes(Exos)contain multiple biosignal molecules and have been demonstrated to exhibit immunomodulatory functions.Herein,we develop a BMSC-derived Exos-functionalized implant to accelerate bone integration by immunoregulation.BMSC-derived Exos were reversibly incorporated on tannic acid(TA)modified sulfonated polyetheretherketone(SPEEK)via the strong interaction of TA with biomacromolecules.The slowly released Exos from SPEEK can be phagocytosed by co-cultured cells,which could efficiently improve the biocompatibilities of SPEEK.In vitro results showed the Exos loaded SPEEK promoted macrophage M2 polarization via the NF-κB pathway to enhance BMSCs osteogenic differentiation.Further in vivo rat air-pouch model and rat femoral drilling model assessment of Exos loaded SPEEK revealed efficient macrophage M2 polarization,desirable new bone formation,and satisfactory osseointegration.Thus,BMSC-derived Exos-functionalized implant exerted osteoimmunomodulation effect to promote osteogenesis. | Lei Fan Pengfei Guan Cairong Xiao Huiquan Wen Qiyou Wang Can Liu Yian Luo Limin Ma Guoxin Tan Peng Yu Lei Zhou Chengyun Ning | 2021 | Bioactive Materials2021，6，9： | 11 |
| 3 | Highly Stretchable and Transparent Ionic Conductor with Novel Hydrophobicity and Extreme-Temperature Tolerance显示文摘Highly stretchable and transparent ionic conducting materials have enabled new concepts of electronic devices denoted as iontronics,with a distinguishable working mechanism and performances from the conventional electronics.However,the existing ionic conducting materials can hardly bear the humidity and temperature change of our daily life,which has greatly hindered the development and real-world application of iontronics.Herein,we design an ion gel possessing unique traits of hydrophobicity,humidity insensitivity,wide working temperature range(exceeding 100℃,and the range covered our daily life temperature),high conductivity(10^(-3)~10^(-5) S/cm),extensive stretchability,and high transparency,which is among the bestperforming ionic conductors ever developed for flexible iontronics.Several ion gel-based iontronics have been demonstrated,including large-deformation sensors,electroluminescent devices,and ionic cables,which can serve for a long time under harsh conditions.The designed material opens new potential for the real-world application progress of iontronics. | Lei Shi Kun Jia Yiyang Gao Hua Yang Yaming Ma Shiyao Lu Guoxin Gao Huaitian Bu Tongqing Lu Shujiang Ding | 2020 | Research2020，，1： | 7 |
| 4 | Promoting Bone Mesenchymal Stem Cells and Inhibiting Bacterial Adhesion of Acid-Etched Nanostructured Titanium by Ultraviolet Functionalization显示文摘Titanium(Ti) and its alloys are used extensively in orthopedic implants because of their excellent biocompatibility,mechanical properties and corrosion resistance. However,titanium-based implant materials face many severe complications,such as implant loosening due to poor osseointegration and bacterial infections,which may lead to implant failure. Hence,preparing a biomaterial surface,which enhances the interactions with host cells and inhibits bacterial adhesion,may be an optimal strategy to reduce the incidence of implant failure. This study aims to improve osseointegration and confer antibacterial properties on Ti through a combination of two surface modifications including nanostructuring generated by acid etching and ultraviolet(UV) light treatment.Our results showed that without UV treatment,the acid etching treatment of Ti surface was effective at both improving the adhesion of bone mesenchymal stem cells(BMSCs) and increasing bacterial adhesion. A further UV treatment of the acid-etched surface however,not only significantly improved the cell adhesion but also inhibited bacterial adhesion. The acid-etched nanostructured titanium with UV treatment also showed a significant enhancement on cell proliferation,alkaline phosphatase(ALP) activity and mineralization. These results suggest that such nanostructured materials with UV treatment can be expected to have a good potential in orthopedic applications. | Guobo Lan Mei Li Ying Tan Lihua Li Xiaoming Yang Limin Ma Qingshui Yin Hong Xia Yu Zhang Guoxin Tan Chengyun Ning | 2015 | Journal of Materials Science & Technology2015，31，2： | 7 |
| 5 | Hierarchical peony-like FeCo-NC with conductive network and highly active sites as efficient electrocatalyst for rechargeable Zn-air battery显示文摘Carbon materials featuring hierarchical pores and atomically dispersed metal sites are promising catalysts for energy storage and conversion applications.Herein,we developed a facile strategy to construct functional carbon materials with a fluffy peony-like structure and dense binary FeCo-Nx active sites(termed as f-FeCo-CNT).By regulating the metal content in precursors,a three-dimensional(3D)interconnected conductive carbon nanotubes network was in-situ formed throughout the atomically dispersed FeCo-NC matrix during pyrolysis.Taking advantage of rich pore hierarchy and co-existence of highly active FeCo-Nx sites and beneficial FeCo alloy nanoparticles,the f-FeCo-CNT material exhibited excellent bifunctional performance towards oxygen reduction reaction/oxygen evolution reactions(ORR/OER)with respect to the atomically dispersed FeCo-NC(SA-f-FeCo-NC)and commercial Pt/C+Ru02 mixture,surpassing the SA-f-FeCo-NC with a 20 mV higher ORR half-wave potential and a 100 mV lower OER overpotential(at 10.0 mA/cm^2).Remarkably,the f-FeCo-CNT-assembled Zn-air battery(ZAB)possessed a maximum specific power of 195.8 mW/cm^2,excellent rate capability,and very good cycling stability at large current density of 20.0 mA/cm^2.This work provides a facile and feasible synthetic strategy of constructing low-cost cathode materials with excellent comprehensive ZAB performance. | Yiyan Wang Anuj Kumar Mang Ma Yin Jia Yu Wang Ying Zhang Guoxin Zhang Xiaoming Sun Zifeng Yan | 2020 | Nano Research2020，13，4： | 5 |
| 6 | Noninvasive assessment of renal fractional flow reserve: are we there yet?显示文摘 | QiXiaolong Fan Guoxin Li Zhiwei Ma Wanrong Yang Changqing | 2014 | Chinese Medical Journal2014，，5： | 2 |
| 7 | A Comparative Study on Different Parallel Solvers for Nonlinear Analysis of Complex Structures显示文摘 | Lei Zhang Guoxin Zhang Lixiang Wang Zhaosong Ma Shihai Li Zhiqiang Hu | 2013 | Mathematical Problems in Engineering2013，，： | 1 |
| 8 | Separation-enrichment method for airborne disease spores based on microfluidic chip显示文摘Airborne diseases are likely to cause crop yield reduction,which has aroused widespread concern.In this study,a two-stage separation-enrichment structure microfluidic chip with a compound field for separation and enrichment of the greenhouse crops airborne disease spores directly from gas flow was developed.The chip is mainly composed of three parts:arc structure pretreatment channel,semicircular electrode structure and collection tank.COMSOL 5.1 software was used to simulate the designed microfluidic chip.30μm particles were used to represent P.xanthii spores,25μm particles were used to represent P.cubensis spores,and 16μm particles were used to represent B.cinerea spores.The simulation results showed that the separation and enrichment efficiency of 16μm particles,25μm particles,and 30μm particles was 88%,91%,and 94%,respectively.The experimental verification results were observed under a microscope.The results showed that the separation and enrichment efficiency of B.cinereal spores,P.cubensis spores and P.xanthii spores was 75.7%,83.8%and 89.4%,respectively.As a result,the designed microfluidic chip can be used to separate and enrich the spores of airborne diseases of greenhouse crops,which can provide a basis for the research of real-time monitoring technology for greenhouse airborne diseases. | Yafei Wang Xiaodong Zhang Ning Yang Guoxin Ma Xiaoxue Du Hanping Mao | 2021 | International Journal of Agricultural and Biological Engineering2021，14，5： | 1 |
| 9 | A GPU-Based Parallel Procedure for Nonlinear Analysis of Complex Structures Using a Coupled FEM/DEM Approach显示文摘 | Lixiang Wang Shihai Li Guoxin Zhang Zhaosong Ma Lei Zhang Zhiqiang Hu | 2013 | Mathematical Problems in Engineering2013，，： | 1 |
| 10 | Suggesiton of improve the bay window efficacy of residential building显示文摘 | Ma Guoxin | 2008 | China building establishment2008，，11： | 1 |
| 11 | Gastroenteritis Outbreak Caused by Campylobacter jejuni — Beijing, China, August, 2019显示文摘Summary What is already known about this topic?Campylobacter genus bacteria are recognized as some of the leading causes of the bacterial diarrheal illness in both developing and developed countries.Recent pilot surveillance study revealed Campylobacter is the most common pathogen in the diarrheal cases using the enhanced filtration methods in Beijing.One outbreak caused by multi-drug resistant Campylobacter coli(C.coli)was identified in 2018. | Ying Li Guilan Zhou Peng Gao Yixin Gu Hairui Wang Shuang Zhang Yanchun Zhang Yuanyuan Wang Hongbo Jing Chao He Guoxin Zhen Hongmei Ma Yindong Li Jianzhong Zhang Maojun Zhang | 2020 | China CDC weekly2020，2，23： | 1 |
| 12 | AlGaN/AlN/GaN/SiC HEMT structure with high mobility GaN thin layer as channel grown by MOCVD显示文摘 | Xiaoliang Wang Guoxin Hu Zhiyong Ma Junxue Ran Cuimei Wang Hongling Xiao Jian Tang Jianping Li Junxi Wang Yiping Zeng Jinmin Li Zhanguo Wang | 2006 | Journal of Crystal Growth2006，，： | 1 |
| 13 | Ependymal cell proliferation and apoptosis following acute spinal cord injury in the adult rat显示文摘BACKGROUND: Studies have reported that spinal cord injury can induce the reactive proliferation of ependymal cells and secondarily cause the apoptosis of nerve cells. However, there is no generally accepted theory on the apoptotic characteristics of ependymal cells in the injured spinal cord. OBJECTIVE: To observe the reactive proliferation and apoptosis of ependymal cells in adult rats following acute spinal cord injury. DESIGN, TIME AND SETTING: A randomized control study based on neuropathology was performed in the Third Military Medical University of Chinese PLA between 2005 and 2007. MATERIALS: Forty healthy, adult, Wistar rats were included in the present study. METHODS: Moderate spinal cord injury was established in twenty rats using Feeney's method, while the remaining 20 rats served as controls and were only treated with laminectomy. All rats were injected intraperitoneally with 1.25 mL of BrdU solution (10 mg BrdU/mL saline) 3 times at 4 hours intervals during the 12 hours prior to sacrifice. MAIN OUTCOME MEASURES: Ependymal cell proliferation and apoptosis in the rat spinal cord were determined by BrdU and nestin immunofluorescence double-labeling, as well as the TUNEL method, at 1, 3, 7, and 14 days after operation. RESULTS: In the moderate spinal cord injury rats, nestin expression was observed in the cytoplasm of ependymal cells. One day immediately following surgery, ependymal cells were BrdU-labeled. The number of BrdU-positive cells increased at 3 days, reached a peak at 7 days, and gradually reduced thereafter. The ependyma developed from a constitutive monolayer cells to a multi-layer cell complex. Some BrdU/Nestin double-positive ependymal cells migrated out from the ependyma. TUNEL-positive cells were also detected in the ependyma in the central region, as well as ischemic regions of the injured spinal cord. In addition, TUNEL-positive cells were visible in the ependyma. No TUNEL-positive ependymal cells were observed in the normal spinal cord. CONCLUSION: Proliferating ependymal cells induced apoptosis in the central and surrounding region following spinal cord injury. | Xu Wang Jun Qian Yanchao Ma Guoxin Nan Shuanke Wang Yayi Xia Youcheng Zhang | 2008 | Neural Regeneration Research2008，3，10： | 1 |
| 14 | Inhibitory effects of tetramethylpy razine on platelets during cardiopumonary bypass and arterial thrombus for mation in dogs显示文摘 | Wu Guoxin Wu Jinchang MA Haitao | 1992 | Acta Pharmacol Sin1992，13，4： | 1 |
| 15 | Catalytic depolymerization/degradation of alkali lignin by dual-component catalysts in supercritical ethanol显示文摘Depolymerization of lignin is an important step to obtain lignin monomer for the synthesis of functional bio-polymers.In this paper,catalytic degradation/depolymerization of an alkali lignin was investigated in a supercritical ethanol system.The process conditions were optimized in terms of lignin monomer yield,and the liquid products and solid residue were characterized.Results show that the conversion rate of the alkali lignin was improved in both the Ni7Au3 catalyzed and Nickel-catalyzed systems with supercritical ethanol as the solvent.The maximum lignin conversion rate was 69.57%and 68%respectively for the Ni7Au3 and Nickel-based catalysis systems.Gas chromatography/mass spectroscopy(GC/MS)analysis indicated that the catalytic depolymerization products of alkali lignin were mainly monomeric phenolic compounds such as 2-methoxyphenol.The highest yield of 2-methoxyphenol(84.72%)was achieved with Ni7Au3 as the catalyst. | Cheng Zou Haizhu Ma Yunpu Guo Daliang Guo Guoxin Xue | 2018 | Journal of Bioresources and Bioproducts2018，3，1： | 0 |
| 16 | Sensitively detecting antigen of SARS-CoV-2 by NIR-Ⅱ fluorescent nanoparticles显示文摘Early detection of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection is an efficient way to prevent the spread of coronavirus disease 2019(COVID-19).Detecting SARS-CoV-2 antigen can be rapid and convenient,but it is still challenging to develop highly sensitive methods for effective diagnosis.Herein,a lateral flow assay(LFA)based on fluorescent nanoparticles emitting in the second near-infrared(NIR-II)window is developed for sensitive detection of SARS-CoV-2 antigen.Benefiting from the NIR-II fluorescence with high penetration and low autofluorescence,such NIR-II based LFA allows enhanced signal-to-background ratio,and the limit of detection is down to 0.01 ng·mL^(−1)of SARS-CoV-2 antigen.In the clinical swab sample tests,the NIR-II LFA outperforms the colloidal gold LFA with higher overall percent agreement with the polymerase chain reaction test.The clinical samples with low antigen concentrations(~0.015–~0.068 ng·mL^(−1))can be successfully detected by the NIR-II LFA,but fail for the colloidal gold LFA.The NIR-II LFA can provide a promising platform for highly sensitive,rapid,and cost-effective method for early diagnosis and mass screening of SARS-CoV-2 infection. | Ruibin Hu Tao Liao Yan Ren Wenming Liu Rui Ma Xinyuan Wang Qihui Lin Guoxin Wang Yongye Liang | 2022 | Nano Research2022，15，8： | 0 |
| 17 | Single-atom Zn for boosting supercapacitor performance显示文摘Single-atom metal-incorporated carbon nanomaterials(CMs)have shown great potential towards broad catalytic applications.In this work,we show that N-doped porous CMs embedded with redox-able Zn atoms exhibit superior capacitive performance.High Zn(~2.72 at.%)/N(~12.51 at.%)doping were realized by incorporating Zn2+and benzamide into the condensation and carbonization of formamide and subsequent annealing at 900℃.The Zn and N species are mutually benefited during the formation of ZnN4 motif.The as-obtained Zn1NC material affords a very large capacitance of 621 F·g^(−1)(at 0.1 A·g^(−1)),superior rate capability(~65%retention at 100 A·g^(−1)),and excellent cycling stability(0.00044%per cycle at 10 A·g^(−1)).These merits are attributed to the high Zn/N loading,atomic Zn-boosted pseudocapacitive behavior,large specific surface area(~1,085 m^(2)·g^(−1)),and rich pore hierarchy,thus ensuring both large pseudo-capacitance(e.g.,~37.9%at 10 mV·s^(−1))and double-layer capacitance.Besides of establishing a new type of high Zn/N-loading carbon materials,our work uncovers the capacitive roles of atomically dispersed metals in CMs. | Zongge Li Danni Wang Huifang Li Mang Ma Ying Zhang Zifeng Yan Stefano Agnoli Guoxin Zhang Xiaoming Sun | 2022 | Nano Research2022，15，3： | 0 |
| 18 | Extraction of Actinide Ion by Asymmetrical N,N′-dimethyl-N,N′-dioctyl-diglycolamide显示文摘In order to develop sustainable nuclear energy,agreat effort has been made for designing new extractants to selectively separate all actinides from nitric acid solutions of dissolution of spent fuel.Among those,tetraalkyldiglycolamide(TRDGA)ligands,such as N,N,N′,N′-tetra-octyldiglycolamide(TODGA)and N,N,N′,N′-tetra-isobutyl diglycolamide(TiBDGA),have shown great promise. | YANG Suliang ZHANG Yan LIU Qian ZHOU Jin MA Siqi TIAN Guoxin | 2018 | 中国原子能科学研究院年报2018，，1： | 0 |
| 19 | Study on Coordination of Amidoxime Small Molecule Ligand with Uranyl Ion under Seawater Condition显示文摘It has been found that uranium concentration in seawater is consistent in various locations around the world,even at depths up to 5 000 feet,at 3 parts per billion(ppb).With constant uranium concentration of 3ppb in a total of 1.3×1022 liters of seawater,the estimated amount of uranium is about 4billion tons in the ocean,and uranium exists mainly in U(Ⅵ)oxidation state as uranyl carbonates,about 98%. | LIU Tingting TIAN Guoxin YANG Suliang LIU Qian MA Fuqiu XUE Yun | 2018 | 中国原子能科学研究院年报2018，，1： | 0 |
| 20 | Numerical investigation of co-flow jet airfoil with parabolic flap显示文摘Both the Active Flow Control(AFC)and the variable-camber technology are considered as efficient ways to enhance the aerodynamic performance of an aircraft.The present study investigated the feasibility of the combination of a Co-Flow Jet(CFJ)airfoil and a parabolic flap,where the Reynolds Average Navier-Stokes(RANS)equations and the Spalart-Allmaras(S-A)turbulence model were exploited for the numerical simulation.Several significant geometric parameters,including the injection slot location,the suction slot location,the injection slot angle,the suction slot angle and the airfoil Suction Surface Translation(SST),were selected to study their effects on the aerodynamics of the proposed configuration.Then,an optimized design was created and compared with the baseline airfoil.The results show that the CFJ airfoil combined with the parabolic flap is more beneficial to the aerodynamic performance enhancement at small angles of attack.It is preferable to locate the injection slot at a 2%chord-wise location and the suction slot at a 75%chord-wise location.Both the decrease of the injection slot angle and the augmentation of the suction slot angle could reduce the drag.Furthermore,the SST of 0.5%chord is selected due to its high gain in the corrected aerodynamic efficiency at small angles of attack.Compared with the baseline,the optimized design could increase the lift coefficient and the corrected lift-to-drag ratio by 32.1%and 93.8%respectively at the angle of attack a=4°. | Ruochen WANG Xiaoping MA Guoxin ZHANG Pei YING Xiangyu WANG | 2023 | Chinese Journal of Aeronautics2023，36，5： | 0 |
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