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| 1 | Investigating the dynamic mechanical behaviors of polyurea through experimentation and modeling显示文摘Polyurea is widely employed as a protective coating in many fields because of its superior ability to improve the anti-blast and anti-impact capability of structures.In this study,the mechanical properties of polyurea XS-350 were investigated via systematic experimentation over a wide range of strain rates(0.001-7000 s^-1)by using an MTS,Instron VHS,and split-Hopkinson bars.The stress-strain behavior of polyurea was obtained for various strain rates,and the effects of strain rate on the primary mechanical properties were analyzed.Additionally,a modified rate-dependent constitutive model is proposed based on the nine-parameter Mooney-Rivlin model.The results show that the stress-strain curves can be divided into three distinct regions:the linear-elastic stage,the highly elastic stage,and an approximate linear region terminating in fracture.The mechanical properties of the polyurea material were found to be highly dependent on the strain rate.Furthermore,a comparison between model predictions and the experimental stress-strain curves demonstrated that the proposed model can characterize the mechanical properties of polyurea over a wide range of strain rates. | Hao Wang Ximin Deng Haijun Wu Aiguo Pi Jinzhu Li Fenglei Huang | 2019 | Defence Technology(防务技术)2019，15，6： | 13 |
| 2 | Jet formation and penetration mechanism of W typed shaped charge显示文摘Existing classical shaped charges are well knownfor their longer jets capable of achieving large hole depth tohole diameter ratios in metallic targets.However,in some sit-uations,there arises demand to obtain 1:1 ratio for hole depthto hole diameter which is beyond normal shaped chargescapability.A new variant of shape charge,named W typedshape charge(WSC),is proposed in this paper,which canmeet the demand of 1:1 ratio,and is based on the geometrythat can produce annular jets upon proper initiation scheme.In this paper,we present formation and penetration resultsof WSC based on three different schemes.We also showthat not all WSC designs can form annular jets,only annu-larly initiated WSC,which also fulfils the 'Internal-ExternalLiners Equal-Impulse' criterion,has the capability to formannular jet.The experimental and numerical results show thatwhen the ratio between annular initiation ring diameter andthe charge diameter is 0.75,an annular jet is formed,whichwas also supported by high speed photographs performedin vacuum.2D numerical simulations are performed withindigenously developed simulation software,where Eulerianapproach with multi-material interface tracking algorithm isutilized,to find various mechanisms involved during jet for-mation process.The calculation results are found in goodagreement with the experimental results,indicating that theinterface treatment algorithm proposed in this paper can notonly deal with large deformation problem,but also depictclearly the variation of materials interface.It is especially suitable for simulation of the process from liner collapse toformation of shaped charge jet. | Cheng Wang Fenglei Huang Jianguo Ning State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology, 100081 Beijing, China | 2009 | Acta Mechanica Sinica2009，25，1： | 7 |
| 3 | Health-related quality of life among rural residents aged 45-69 years in Hua County, Henan Province, China: Results of ESECC Trial for esophageal cancer screening with endoscopy显示文摘Objective: There have been few population-based studies evaluating health related quality of life(HRQOL) in rural populations in China, and this study aimed to assess the current status of and risk factors for HRQOL in a general rural population in high risk region of esophageal cancer in China.Methods: From November 2015 to September 2016, 12,085 permanent residents aged 45–69 years from 257 villages in the Endoscopic Screening for Esophageal Cancer in China(ESECC) trial(Clinical Trials.gov:NCT01688908) randomly selected from Hua County, Henan Province, China were interviewed. The EQ-5 D-3 L,a generic measure of HRQOL, and a questionnaire were used to assess their HRQOL and potential risk factors.Results: Among all the participants, 30.62% of the participants reported problems in at least one EQ-5 D dimension. Pain/discomfort(25.52%) was the most frequently reported problem followed by anxiety/depression(7.97%), mobility(5.82%), usual activities(2.61%) and self-care(1%). These rural residents had a mean EQ-5 D index score of 0.948, and lower EQ-5 D index scores were associated with older age, female gender, lower levels of household annual per capita income, living alone, using shallow wells as main source of drinking water, exposure to family members smoking, testiness, unhealthy dietary habits, overweight or obesity, upper gastrointestinal cancer related symptoms and chronic diseases.Conclusions: Rural residents in China have a relatively low quality of life. Health promotion programs in this population should focus on the elderly, especially elderly women and the elderly living alone. Improving basic living circumstances and primary medical care services should be priorities. Results of this study will also serve as the basis for the cost-utility evaluation in our ESECC screening trial. | Hui Wang Yaqi Pan Chuanhai Guo Fenglei Li Ruiping Xu Mengfei Liu Zhen Liu Fangfang Liu Hong Cai Yang Ke Zhonghu He | 2018 | Chinese Journal of Cancer Research2018，30，2： | 3 |
| 4 | Preparation of Diamond-like Carbon Films on the Surface of Ti Alloy by Electro-deposition显示文摘In this paper, diamond-like carbon (DLC) fi[ms were deposited on Ti alloy by electro-deposition. DLC films were brown and composed of the compact grains whose diameter was about 400 nm. Examined by XPS, the main composition of the films was carbon. In the Raman spectrum, there were a broad peak at 1350 cm-1 and a broad peak at 1600 cm-1, which indicated that the films were DLC films. | Fenglei SHEN Hongwei WANG Dijiang WEN School of Materials Engineering,Suzhou University,Suzhou 215021,China | 2004 | Journal of Materials Science & Technology2004，20，3： | 3 |
| 5 | Biophysical studies of the interaction between a triazole derivative and bovine serum albumin by multi-spectroscopic and molecular modeling methods显示文摘The interaction between 3-thiol-4-(2,4-dichlorobenzylideneamino)-5-methyl-4H-1,2,4-triazole (CBTZ) and bovine serum albumin (BSA) under physiological conditions was investigated by fluorescence,UV-vis absorption and circular dichroism (CD) spectroscopy as well as molecular modeling methods. The result of fluorescence experiment indicates the static quenching as a result of the formation of the CBTZ-BSA complex. The binding constants (Ka) at different temperatures were calculated according to the modified Stern-Volmer equation. The enthalpy change (-H) and entropy change (-S) were determined based on the van′t Hoff equation. Both negative-H and-S indicated that van der Waals and hydrogen-bonding forces were the dominant intermolecular forces to stabilize the CBTZ-BSA complex. Site marker competitive replacement experiments demonstrated that binding of CBTZ to BSA primarily took place in sub-domain IIA (Sudlow's site I). The binding distance (r = 7.2 nm) between CBTZ and the tryptophan residue of BSA was estimated according to the theory of fluorescence resonance energy transfer (FRET). The conformational studies by circular dichroism (CD) and three-dimensional fluorescence spectroscopy showed that the presence of CBTZ induced minor changes of the secondary structure of BSA. Molecular modeling study further confirmed the binding mode obtained experimentally. | FU JiaXin WANG KaiWei GE YuShu JIANG FengLei SUN XiaoHong LIU Yang LIU Yi | 2011 | Science China Chemistry2011，54，5： | 2 |
| 6 | Simulation-based optimization of control policy on multi-echelon inventory system for fresh agricultural products显示文摘As fresh agricultural products are perishable and vulnerable,reducing inventory cost is a strategic target for supply chain enterprises.How to design a reliable multi-echelon inventory control policy is still a great challenge.Therefore,the inventory cost of a three-level fresh agricultural products inventory system was firstly mathematically analyzed.Then,the simulation-based optimization model of the multi-echelon inventory system for fresh agricultural products was proposed by using the Flexsim simulation software and the improved particle swarm optimization algorithm.Finally,the multi-echelon inventory system is simulated based on a large number of survey data.Simulation results demonstrate that the proposed simulation-based optimization model of multi-echelon inventory system for fresh agricultural products can provide decision-making and technical support for the formulation of inventory control policy,and also it shows that the modeling of system simulation is an effective method to solve the problem of complex system. | Guangyin Xu Jihao Feng Fenglei Chen Heng Wang Zhenfeng Wang | 2019 | International Journal of Agricultural and Biological Engineering2019，12，2： | 2 |
| 7 | Highly efficient and multidimensional extraction of targets from complex matrices using aptamer-driven recognition显示文摘吸附物广泛地在基础被采用并且使用了象分离技术,生物工学,和环境科学那样的研究区域。选择和可重用性是为吸附物的二个很重要的要求。Aptamers 展览完成式选择和容易的新生,它使他们成为特别地有效的吸附材料。此处,我们讲道理地设计了新奇基于 aptamer 的吸附物并且从一个水的解决方案在目标的抽取 / 分离调查了他们的性能。这些吸附物能有选择地从包含背景混合物的复杂样品矩阵提取目标。而且,没有吸附能力的重要损失,他们能容易也被再循环。尤其是,吸附物没影响孤立的生物样品的活动,揭示他们为 biomolecules 的纯化 / 分离的潜力。合成吸附物用基于 aptamer 的吸附物和多孔的聚合物被构造,显示从水的答案的高度有效的目标分离。最后,分离列被构造,并且在水的答案的目标被这些列高效地分开。这里描述的 aptamerbased 吸附物在分离技术,生物工学,和环境相关的区域为潜在的应用展出大诺言。 | Jie Wang Haijing Shen Chi Huang Qinqin Ma Yaning Tan Fenglei Jiang Chao Ma Quan Yuan | 2017 | Nano Research2017，10，1： | 2 |
| 8 | An analytical for the motion of debris clouds induced by hypervelocity impact projectiles with different shapes on multi-plate structures显示文摘 | Wang Qingtao Zhang Qingming Huang Fenglei | 2014 | International Journal of Impact Engineering2014，74，15： | 1 |
| 9 | Penetration concrete targets experiments with non-ideal & high velocity between 800 and 1 100 m/s显示文摘 | Wu Haijun Wang Yinan Huang Fenglei | 2008 | International Journal of Modern Physics B2008，22，9： | 1 |
| 10 | Field test and evaluation on crop dividers of sugarcane chopper harvester显示文摘In South China,the tropical weather and climate result in severe sugarcane lodging problems which greatly hinders sugarcane mechanical harvesting.The main function of the crop divider is to lift lodged canes and facilitate base-cut cane feeding.In this study,a series of field tests were conducted on crop dividers of Liugong 4GQ-180 sugarcane chopper harvester.The tests were designed to identify the relationships of the performance index(maximum lifting height of sugarcane)and the main influencing factors(machine forward speed,rotational speed of inside scrolls,and ground clearance of crop divider toes).The single factor test was conducted to determine optimum range of these test factors:the forward speed(FS)was 2.0-4.0 km/h,the rotational speed of inside scrolls(RS)was 100-140 r/min,and the toe ground clearance(GC)was 0-5 cm.The orthogonal test(three factors and three levels)was carried out to determine the optimal combination of operating parameters:FS was 2.0 km/h,RS was 115 r/min,and GC was 0 cm.In addition,the range analysis of orthogonal test results revealed that the order of each test factor affecting crop divider performance was RS,FS,GC.This study was expected to provide valuable references for the optimal operation of sugarcane harvester crop dividers. | Jing Bai Shaochun Ma Fenglei Wang Haonan Xing Jinzhi Ma Jiwei Hu | 2021 | International Journal of Agricultural and Biological Engineering2021，14，1： | 1 |
| 11 | Temporal and spatial change detecting (1998–2003) and predicting of land use and land cover in Core corridor of Pearl River Delta (China) by using TM and ETM+ images显示文摘 | Fenglei Fan Yunpeng Wang Zhishi Wang | 2008 | Environmental Monitoring and Assessment (-)2008，，1： | 1 |
| 12 | Land use and land cover change in GangZhou China from 1998 to2003 based on landsat TM/ETM+ imagery显示文摘 | FAN Fenglei WENG Qihao WANG Yunpeng | 2007 | Sensors2007，7，7： | 1 |
| 13 | Preparation of TiO 2 Hollow Microspheres by a Novel Vesicle Template Method and Their Enhanced Photocatalytic Properties显示文摘 | Wang Ran Cai Xia Shen Fenglei | 2015 | Talanta2015，144，1： | 1 |
| 14 | Spectroscopic study on the interaction between naphthalimide–polyamine conjugates and DNA显示文摘 | Zhiyong Tian Zhonghua Zhao Fenglei Zang Yueqiao Wang Chaojie Wang | 2014 | Journal of Photochemistry & Photobiology, B: Biology2014，，： | 1 |
| 15 | Galangin mitigates glucocorticoid-induced osteoporosis by activating autophagy of BMSCs via triggering the PKA/CREB signaling pathway显示文摘Glucocorticoid-induced osteoporosis(GIOP),one of the most common and serious adverse effects associated with glucocorticoid administration,manifests as decreased bone formation and increased bone resorption,eventually culminating in bone loss.Galangin(GAL)is a flavonoid extracted from the medicinal herbal galangal that possesses a variety of pharmacological activities and can inhibit osteoclastogenesis.However,the effects of GAL on GIOP remain unclear.Our study aims to explore the effects of GAL on GIOP in mice and the underlying mechanism.Our results show that GAL markedly mitigates the severity of dexamethasone(Dex)-induced osteoporosis in mice and potentiates osteogenic differentiation in mouse bone marrow-derived mesenchymal stem cells(BMSCs).Furthermore,GAL also significantly counteracts Dex-mediated suppression of osteogenic differentiation and autophagy in human BMSCs.GAL augments PKA/CREB-mediated autophagic flux in BMSCs and the bones of osteoporotic mice.GAL-mediated osteogenic differentiation in Dex-treated BMSCs is significantly decreased by the PKA inhibitor H89 and autophagy inhibitor 3-methyladenine.Collectively,our data indicate that GAL can ameliorate GIOP,partly by augmenting the mineralization of BMSCs by potentiating PKA/CREB-mediated autophagic flux,highlighting its potential therapeutic use in treating glucocorticoid-related osteoporosis. | Chenying Zeng Shan Wang Huimin Gu Fenglei Chen Ziming Wang Jinteng Li Zhongyu Xie Pei Feng Huiyong Shen Yanfeng Wu | 2023 | Acta Biochimica et Biophysica Sinica2023，55，8： | 0 |
| 16 | The STX17-SNAP47-VAMP7/VAMP8 complex is the default SNARE complex mediating autophagosome–lysosome fusion显示文摘Autophagosome–lysosome fusion mediated by SNARE complexes is an essential step in autophagy.Two SNAP29-containing SNARE complexes have been extensively studied in starvation-induced bulk autophagy,while the relevant SNARE complexes in other types of autophagy occurring under non-starvation conditions have been overlooked.Here,we found that autophagosome–lysosome fusion in selective autophagy under non-starvation conditions does not require SNAP29-containing SNARE complexes,but requires the STX17-SNAP47-VAMP7/VAMP8 SNARE complex.Further,the STX17-SNAP47-VAMP7/VAMP8 SNARE complex also functions in starvation-induced autophagy.SNAP47 is recruited to autophagosomes following concurrent detection of ATG8s and PI(4,5)P2 via its Pleckstrin homology domain.By contrast,SNAP29-containing SNAREs are excluded from selective autophagy due to inactivation by O-GlcNAcylation under non-starvation conditions.These findings depict a previously unknown,default SNARE complex responsible for autophagosome–lysosome fusion in both selective and bulk autophagy,which could guide research and therapeutic development in autophagy-related diseases. | Fenglei Jian Shen Wang Rui Tian Yufen Wang Chuangpeng Li Yan Li Shixuan Wang Chao Fang Cong Ma Yueguang Rong | 2024 | Cell Research2024，34，2： | 0 |
| 17 | In situ surface-confined fabrication of single atomic Fe-N_(4) on N-doped carbon nanoleaves for oxygen reduction reaction显示文摘Controllable fabrication of Fe-N-C based single-atom catalysts(SACs)for enhanced electrocatalytic performance is highly desirable but still challenging.Here,an in situ surface-confined strategy was demonstrated for the synthesis of single atomic Fe-N_(4))on N-doped carbon nanoleaves(L-FeNC).The in situ generated Zn3[Fe(CN)6]2 could not only serve as a protection layer against collapse of nanoleaves but also provide abundant Fe source for the formation of Fe-N moieties during pyrolysis,leading to high surface area and high graphitization degree of L-FeNC simultaneously.Benefiting from abundant Fe-N_(4))active sites,enhanced mass and charge transfer,the as-prepared L-FeNC manifested a half-wave potential of 0.89 V for oxygen reduction reaction(ORR)in 0.1 M KOH.A maximum power density of 140 m W cm^(-2)and stable discharge voltage even after operation for 50,000 s have been demonstrated when the L-FeNC was used as air cathode for Zn-air battery.This work not only provided a unique surfaceconfined strategy for the synthesis of two-dimensional nanocarbons,but also demonstrated the significant benefit from rational design and engineering of Fe-N-C SACs,thus offering great opportunities for fabrication of efficient energy conversion and storage devices. | Xiaojing Jiang Jianian Chen Fenglei Lyu Chen Cheng Qixuan Zhong Xuchun Wang Ayaz Mahsud Liang Zhang Qiao Zhang | 2021 | Journal of Energy Chemistry2021，30，8： | 0 |
| 18 | A host-guest approach to fabricate metallic cobalt nanoparticles embedded in silk-derived N-doped carbon fibers for efficient hydrogen evolution显示文摘Hydrogen evolution reaction(HER) plays a key role in generating clean and renewable energy. As the most effective HER electrocatalysts, Pt group catalysts suffer from severe problems such as high price and scarcity. It is highly desirable to design and synthesize sustainable HER electrocatalysts to replace the Pt group catalysts. Due to their low cost, high abundance and high activities, cobalt-incorporated N-doped nanocarbon hybrids are promising candidate electrocatalysts for HER. In this report, we demonstrated a robust and eco-friendly host-guest approach to fabricate metallic cobalt nanoparticles embedded in N-doped carbon fibers derived from natural silk fibers. Benefiting from the onedimensional nanostructure, the well-dispersed metallic cobalt nanoparticles and the N-doped thin graphitized carbon layer coating, the best Cobased electrocatalyst manifests low overpotential(61 mV@10 mA/cm^2) HER activity that is comparable with commercial 20% Pt/C, and good stability in acid. Our findings provide a novel and unique route to explore high-performance noble-metal-free HER electrocatalysts. | Fenglei Lyu Qingfa Wang Han Zhu Mingliang Du Li Wang Xiangwen Zhang | 2017 | Green Energy & Environment2017，2，2： | 0 |
| 19 | High-speed penetration of ogive-nose projectiles into thick concrete targets:Tests and a projectile nose evolution model显示文摘The majority of the projectiles used in the hypersonic penetration study are solid flat-nosed cylindrical projectiles with a diameter of less than 20 mm.This study aims to fill the gap in the experimental and analytical study of the evolution of the nose shape of larger hollow projectiles under hypersonic penetration.In the hypersonic penetration test,eight ogive-nose AerMet100 steel projectiles with a diameter of 40 mm were launched to hit concrete targets with impact velocities that ranged from 1351 to 1877 m/s.Severe erosion of the projectiles was observed during high-speed penetration of heterogeneous targets,and apparent localized mushrooming occurred in the front nose of recovered projectiles.By examining the damage to projectiles,a linear relationship was found between the relative length reduction rate and the initial kinetic energy of projectiles in different penetration tests.Furthermore,microscopic analysis revealed the forming mechanism of the localized mushrooming phenomenon for eroding penetration,i.e.,material spall erosion abrasion mechanism,material flow and redistribution abrasion mechanism and localized radial upsetting deformation mechanism.Finally,a model of highspeed penetration that included erosion was established on the basis of a model of the evolution of the projectile nose that considers radial upsetting;the model was validated by test data from the literature and the present study.Depending upon the impact velocity,v0,the projectile nose may behave as undistorted,radially distorted or hemispherical.Due to the effects of abrasion of the projectile and enhancement of radial upsetting on the duration and amplitude of the secondary rising segment in the pulse shape of projectile deceleration,the predicted DOP had an upper limit. | Xu Li Yan Liu Junbo Yan Zhenqing Shi Hongfu Wang Yingliang Xu Fenglei Huang | 2024 | Defence Technology(防务技术)2024，32，2： | 0 |
| 20 | Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction显示文摘Taking CL-20(Hexanitrohexaazaisowurtzitane)-based aluminized explosives with high gurney energy as the research object, this research experimentally investigates the work capability of different aluminized explosive formulations when driving metal flyer plates in the denotation wave propagation direction.The research results showed that the formulations with 43 μm aluminum(Al) powder particles(The particle sizes of Al powder were in the range of 2~43 μm) exhibited the optimal performance in driving flyer plates along the denotation wave propagation direction. Compared to the formulations with Al powder 13 μm, the formulations with Al powder 2 μm delivered better performance in accelerating metal flyer plates in the early stage, which, however, turned to be poor in the later stage. The CL-20-based explosives containing 25% Al far under-performed those containing 15% Al. Based on the proposed quasi-isentropic hypothesis, relevant isentropy theories, and the functional relationship between detonation parameters and entropy as well as Al reaction degree, the characteristic lines of aluminized explosives in accelerating flyer plates were theoretically studied, a quasi-isentropic theoretical model for the aluminized explosive driving the flyer plate was built and the calculation methods for the variations of flyer plate velocity, Al reaction degree, and detonation product parameters with time and axial positions were developed. The theoretical model built is verified by the experimental results of the CL-20-based aluminized explosive driving flyer plate. It was found that the model built could accurately calculate the variations of flyer plate velocity and Al reaction degree over time. In addition, how physical parameters including detonation product pressure and temperature varied with time and axial positions was identified. The action time of the positive pressure after the detonation of aluminized explosives was found prolonged and the downtrend of the temperature was slowed down and even reversed to a slight rise due to the aftereffect reaction between the Al powder and the detonation products. | Hongfu Wang Yan Liu Fan Bai Chao He Yingliang Xu Qiang Zhou Chuan Xiao Fenglei Huang | 2024 | Defence Technology(防务技术)2024，32，2： | 0 |
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