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| 1 | Hierarchical graphene@MXene composite foam modified with flower-shaped FeS for efficient and broadband electromagnetic absorption显示文摘Developing high-performance broadband microwave absorption material becomes an urgent concern in the field of electromagnetic protection.In this work,an ultralight magnetic composite foam was con-structed by electrostatic self-assembly of MXene on the surface of graphene skeletons,and subsequent hydrothermal anchoring of flower-shaped FeS clusters.Under the synergistic effect of MXene coating in-creasing conductive loss and FeS clusters improving magnetic loss,the rational construction of hierarchi-cal impedance structure in foam can effectively promote the entrance and consumption of more incident electromagnetic waves.The minimum reflection loss(RL min)reaches-47.17 dB at a thickness of 4.78 mm,and the corresponding effective absorption bandwidth(EAB)is up to 6.15 GHz.More importantly,the microwave absorption performance of composite foam can be further optimized by controlling the load-ing of MXene and thermal treatment at a low temperature.The maximum of EAB for GMF-300 can be extended to an unprecedented value of 11.20 GHz(covering 6.10-17.30 GHz). | Shuangshuang Li Xinwei Tang Xu Zhao Shijie Lu Jiangtao Luo Zheyuan Chai Tiantian Ma Qianqian Lan Piming Ma Weifu Dong Zicheng Wang Tianxi Liu | 2023 | Journal of Materials Science & Technology2023，，2： | 4 |
| 2 | Chinese expert consensus on conversion therapy for hepatocellular carcinoma(2021 edition)显示文摘Recent advances in systemic and locoregional treatments for patients with unresectable or advanced hepatocellular carcinoma(HCC)have resulted in improved response rates.This has provided an opportunity for selected patients with initially unresectable HCC to achieve adequate tumor downstaging to undergo surgical resection,a‘conversion therapy’strategy.However,conversion therapy is a new approach to the treatment of HCC and its practice and treatment protocols are still being developed.Review the evidence for conversion therapy in HCC and develop consensus statements to guide clinical practice.Evidence review:Many research centers in China have accumulated significant experience implementing HCC conversion therapy.Preliminary findings and data have shown that conversion therapy represents an important strategy to maximize the survival of selected patients with intermediate stage to advanced HCC;however,there are still many urgent clinical and scientific challenges for this therapeutic strategy and its related fields.In order to summarize and learn from past experience and review current challenges,the Chinese Expert Consensus on Conversion Therapy for Hepatocellular Carcinoma(2021 Edition)was developed based on a review of preliminary experience and clinical data from Chinese and non-Chinese studies in this field and combined with recommendations for clinical practice.Sixteen consensus statements on the implementation of conversion therapy for HCC were developed.The statements generated in this review are based on a review of clinical evidence and real clinical experience and will help guide future progress in conversion therapy for patients with HCC. | Hui-Chuan Sun Jian Zhou Zheng Wang Xiufeng Liu Qing Xie Weidong Jia Ming Zhao Xinyu Bi Gong Li Xueli Bai Yuan Ji Li Xu Xiao-Dong Zhu Dousheng Bai Yajin Chen Yongjun Chen Chaoliu Dai Rongping Guo Wenzhi Guo Chunyi Hao Tao Huang Zhiyong Huang Deyu Li Gang Li Tao Li Xiangcheng Li Guangming Li Xiao Liang Jingfeng Liu Fubao Liu Shichun Lu Zheng Lu Weifu Lv Yilei Mao Guoliang Shao Yinghong Shi Tianqiang Song Guang Tan Yunqiang Tang Kaishan Tao Chidan Wan Guangyi Wang Lu Wang Shunxiang Wang Tianfu Wen Baocai Xing Bangde Xiang Sheng Yan Dinghua Yang Guowen Yin Tao Yin Zhenyu Yin Zhengping Yu Bixiang Zhang Jialin Zhang Shuijun Zhang Ti Zhang Yamin Zhang Yubao Zhang Aibin Zhang Haitao Zhao Ledu Zhou Wu Zhang Zhenyu Zhu Shukui Qin Feng Shen Xiujun Cai Gaojun Teng Jianqiang Cai Minshan Chen Qiang Li Lianxin Liu Weilin Wang Tingbo Liang Jiahong Dong Xiaoping Chen Xuehao Wang Shusen Zheng Jia Fan 无 | 2022 | Hepatobiliary Surgery and Nutrition2022，11，2： | 4 |
| 3 | Monitoring micro-structural evolution during aluminum sintering and understanding the sintering mechanism of aluminum nanoparticles:A molecular dynamics study显示文摘In this work, molecular dynamics simulations have been performed to explore the structural evolution and underlying sintering mechanism of aluminum nanoparticles. The structural evolution during sintering was firstly monitored through radial distribution function and atomic migration, and the underlying sintering mechanism was further quantitatively characterized in terms of average displacement, mean squared distance(MSD), radius ratio(i.e., the ratio of the neck radius to the particle radius), shrinkage and radius of gyration, crystalline orientations, particle size, etc. Results show that the surface atoms of nanoparticles are more active than the internal atoms, favoring the mechanical rotation of nanoparticles during sintering. During the sintering process, average displacement, radius ratio and the shrinkage rate have undergone three stages with increasing the temperature:(1) a slow increase and subsequent abrupt hike after reaching the sintering temperature;(2) an almost plateau region over a wide span of temperature;(3) finally a sharp increase again after reaching the melting temperature. In contrast, MSD remains basically unchanged before melting, close to zero, followed by a sudden increase after melting temperature. Although the radius of gyration also experiences three stages, nonetheless it exhibits almost completely contrary trend. It has also been found that both sintering temperature and melting temperature demonstrate an almost linear increase with the increase of nanoparticle size ranging from4.0, 6.0, 8.0 to 10.0 nm in diameter. Finally, we also found that the particle direction has limited effect on neck growth during sintering. | Jun Jiang Pengwan Chen Weifu Sun | 2020 | Journal of Materials Science & Technology2020，54，22： | 3 |
| 4 | A family net of giant pandas in the Tangjiahe Natural Reserve:Assessment of current individual migration显示文摘In the present study, formalin-fixed feces, oli-gonucleotide fingerprinting and SRY-gene based sexing were used to construct a family net for giant pandas in the Tang-jiahe Natural Reserve and to assess contemporary gene flow (migration) in this population. A total of 124 fecal samples were attributed to 37 individuals (22 females and 15 males) that were then analyzed for family relationships. Based on DNA fingerprints, the deduced family net revealed the fol-lowing facts: (i) First-order relatives possessed similarities from 50% to 90%, and similarities between unrelated indi-viduals or distant relatives were as high as 77%, indicating that the Tangjiahe pandas are characterized by high genetic similarity; (ii) 15 matings were identified and 5 ones oc-curred between close relatives, implying that there is poten-tial for inbreeding to impact the pandas; (iii) four mating pairs and 5 offspring presented long distance migrations, demonstrating the intra-reserve habitat is continuous; (iv) four pairs of full sibs (also female-male dyads) dispersed short distance and all of them gave birth to highly inbred offspring, reflecting long distance migration is vital for in-breeding avoidance; (v) 17 adult individuals dispersed short or moderate distance and formed three clusters on the land-scape, indicating that it is necessary to find out whether there is a negative factor impacting the pandas. | WAN Qiuhong FANG Shengguo LI Jianguo ZHANG Liming OU Weifu XIAN Fanghai CHEN Wanli | 2005 | Chinese Science Bulletin2005，50，17： | 3 |
| 5 | Ultralight and ordered lamellar polyimide-based graphene foams with efficient broadband electromagnetic absorption显示文摘The development of high-performance microwave absorption materials with strong absorption capacity and broad bandwidth is highly desirable in the field of electromagnetic pollution protection.Herein,ultralight polyimide-based graphene foam with ordered lamellar structure is precisely designed and controllably constructed by bidirectional freezing process.More lamellar interfaces formed inside the foam per unit volume effectively facilitate the layer-by-layer dissipation for the vertical incident electromagnetic waves,thereby endowing the foam with efficient broadband electromagnetic absorption performance.More importantly,electromagnetic absorption performance can be controllably adjusted by optimizing impedance distribution and microstructure of skeletons.As a result,the optimized foam with an ultralow density of 9.10 mg/cm^(3)presents a minimum reflection loss value of-61.29 dB at 9.25 GHz and an effective absorption bandwidth of 5.51 GHz(7.06-12.57 GHz,covering the whole X band) when the thickness is 4.75 mm. | Yawei Zhang Shuangshuang Li Xinwei Tang Wei Fan Qianqian Lan Le Li Piming Ma Weifu Dong Zicheng Wang Tianxi Liu | 2022 | Journal of Materials Science & Technology2022，，7： | 3 |
| 6 | Stereocompfexed Poiy(iactide) Composites toward Engineering Plastics with Superior Toughness, Heat Resistance and Anti-hydrolysis显示文摘Polyl(lactide),PLA,suffers from bitleness and low heat deflection temperature(HDT),which limits its application as an engineering plastic.In this work,poly(L-lactide)/poly(D-lactide)/ethylene-vinyl acetate glycidyl methacrylate random copolymer(PLLA/PDL A/EVM-GMA=1/1/x)composites were prepared by melt blending,and the in situ formed EVM-g PLA copolymers improved the compatibility between PLA and EVM-GMA.Subsequently,the blends were subjected to a two-step annealing process during compression molding,i.e.first annealing at 120℃ to rapidly form a certain amount of stereocomplex(sc)crystallites as nucleation sites,and then annealing at 200℃ to guide the formation of new sccrystallites.Both differential scanning calorimetry(DSC)and wide angle X-ray dffrction(WAXD)measurements confirmed the formation of highly stereocomplexed PLA products.Mechanical results showed that the PLLA/PDLA blend with 20 wt%of EVM-GMA had a notched impact strength up to 65 kJ/m2 and an elongation at break of 48%,while maintaining a tensile strength of 40 MPa.Meanwhile,dynamic mechanical analysis(DMA)and heat deflection tests showed that the PLA composite had an HDT up to 142℃ which is 90℃ higher than that of normal PLA products.Scanning electron microscopy(SEM)confirmed the fine dispersion of EVM-GMA particles,which facilitated to understand the toughening mechanism.Furthermore,the highly stereocomplexed PLA composites simultaneously exhibited excellent chemical and hydrolysis resistance.Therefore,these fascinating properties may extend the application range of sc PLA material as an engineering bioplastic. | Bao-Gou Wu WeiJun Yang De-Yu Niu WeiFu Pong Ming-Qing Chen Tian-Xi Liu Ming-Liang Du Pi-Ming Ma | 2020 | Chinese Journal of Polymer Science2020，38，10： | 3 |
| 7 | Three-Dimensional Normal Stress for Controlling Electronic Structure and Magnetic Property of Fe2Ge显示文摘A system study of the three-dimensional normal stress for regulating electronic structure and magnetic property of Fe_2Ge is studied. The density states of Fe more than 92% contribution come from Fe 3d,the density states of Ge mainly contributed from Ge 4p and Ge 4s,and the Fe 3d spin induces the Ge 4p electron transfer. The inductive effect increases germanium electron energy,weakens the Fe spin density of states,opposes the stability of the ferromagnetic state. The magnetic moment varies from 5 to 3 μB with the stress charges from-30 to 30 GPa. The charge of Fe is negative whereas the Ge atom is positively charged,the Fe atom loses charge,the charge transfers to the Ge atom. The unevenly distributed charge forms the newoccupy state and spin polarization state in the Fe_2Ge electron structure system. The Fe is the electron donor,the total electron is transferred to Ge,but the total numbers of gain electron and total numbers of lost electron are not equal,so the Fe_2Ge electron system may have hybridization between the Fe 3d state and Ge 4p state.The magnetic of Fe_2Ge mainly comes from the unoccupied Fe 3d orbital,the Fe 3d is positive spinpolarization state and the spin-polarization strength is decreased,the Ge 4p is negative spin-polarization state and the spin-polarization strength are increased. M oreover,electrons-spin polarization is relevant to the structure parameters of the Fe_2Ge system,and controls spin-polarized electronic behavior by means of adjusting ferromagnetic. | Weifu Cen Lin Lyu Yinye Yang Meihui Fan | 2018 | Journal of Harbin Institute of Technology(New Series)2018，25，6： | 2 |
| 8 | New discrete element models for elastoplastic problems显示文摘The discrete element method (DEM) has attractivefeatures for problems with severe damages, but lack oftheoretical basis for continua behavior especially for nonlinearbehavior has seriously restricted its application.The present study proposes a new approach to developingthe DEM as a general and robust technique for modeling theelastoplastic behavior of solid materials. New types of connectivelinks between elements are proposed, the inter-elementparameters are theoretically determined based onthe principle of energy equivalence and a yield criterion anda flow rule for DEM are given for describing nonlinear behaviorof materials. Moreover, a numerical scheme, which canbe applied to modeling the behavior of a continuum as wellas the transformation from a continuum to a discontinuum,is obtained by introducing a fracture criterion and a contactmodel into the DEM. The elastoplastic stress wave propagationsand the tensile failure process of a steel plate aresimulated, and the numerical results agree well with thoseobtained from the finite element method (FEM) and correspondingexperiment, and thus the accuracy and efficiencyof the DEM scheme are demonstrated. | Ming Cheng Weifu Liu Kaixin Liu LTCS and Department of Mechanics and Aerospace Engineering,College of Engineering, Peking University, 100871 Beijing, China | 2009 | Acta Mechanica Sinica2009，25，5： | 2 |
| 9 | First Principle Calculation of Electromagnetic Mechanism for Fe_2Si Bulk Material显示文摘The electronic structure and the magnetic properties of Fe_2Si bulk have been calculated by the first-principle density function theory method. The band structure shows that the hexagonal Fe^2 Si bulk is ferromagnetic which is a metal structure under spin-up, and a semiconductor with the band gap of 0.518 eV under spin-down. The density of states shows the Fe^1 3d–spin and Fe^3 3d–spin in the electronic system are the main factors that is the source of the ferromagnetic properties of Fe_2Si bulk. The electronic structure Si-ions is 3s23p6 and that of Fe-ions is e_g^2↑e_g^(*1)↓t_(2g)~3↑. The molecular magnetic moment of Fe_2Si is 2.00 μB. The potential diagram of Fe_2Si bulk shows the formation of covalent and ionic bonds between the Fe atom and the Si atom, it leads to the center charge of Fe is polarized and off center position. These special properties of Fe_2Si bulk are mainly caused by d-d exchange and p-d hybridization. The results offer a certain reference for the magnetic semiconductor Fe_2Si material. | 李瑞杰 CEN Weifu 杨吟野 Lü Lin XIE Quan | 2019 | Journal of Wuhan University of Technology(Materials Science)2019，34，1： | 2 |
| 10 | Electroless Deposition of Silver Particle on Graphite Nanosheets 显示文摘 | Weifu Sun Guohua Chen Lilong Zheng | 2008 | Scripta Materiallia2008，59，10： | 1 |
| 11 | 唐家河国家级自然保护区概况显示文摘本文对唐家河自然保护区的自然环境、森林资源、教学科研价值、环保和旅游功能作了全面介绍,对存在的问题也作了阐述。 | Ouany Weifu(The Admimistration of TanJiahe National Nature Reserve,Qingchuan,Sichuan 628100) | 1997 | 大自然探索1997，，4： | 1 |
| 12 | Sustainability: the capacity of smokeless biomass pyrolysis for energy production, global carbon capture and sequestration 显示文摘 | James Weifu Lee Bob Hawkins Danny M Day | 2010 | Energy & Environmental Science2010，3，： | 1 |
| 13 | Microstructure and cavitation erosion characteristics of A1-Si alloy coating pre- pared by electrospark deposition 显示文摘 | Wang Weifu Wang Maocai Sun Fengjiu | 2008 | Surface & Coatings Technolo- gy2008，202，： | 1 |
| 14 | Flame retardant synergism of rubber and Mg(OH)2 in EVA composites显示文摘 | Gui Hua Zhang Xiaohong Dong Weifu | 2007 | Polymer2007，，48： | 1 |
| 15 | Electroless deposition of silver particles on graphite nanosheets显示文摘 | Sun Weifu Chen Guohua Zheng Lilong | 2008 | Scr Mater2008，59，10： | 1 |
| 16 | 显示文摘 | Yang Lihe Dong Weifu Shi Dongjian | 2011 | Journal of Functional Materials2011，42，3： | 1 |
| 17 | A-central BMO Estimate for commutators of singular Integral operators with Rough Kernels 显示文摘 | Zun Weifu | 2005 | Ac- ta Math2005，3，： | 1 |
| 18 | Nanjing metropolitan cir- cle cultural creative industry development of the basic conditions and its strategic orientation 显示文摘 | Zhai DongPing Zhang WeiFu Zhou ChangFu | 2011 | Jiang-huai Tribune2011，，03： | 1 |
| 19 | Induction effects of host plants on insecticide susceptibility and detoxification enzymes of Bemisia tabaci (Hemiptera: Aleyrodidae)显示文摘 | WenXie ShaoliWang QingjunWu YuntaoFeng HuipengPan XiaoguoJiao LongZhou XinYang WeiFu HaiyuanTeng BaoyunXu YoujunZhang | 2010 | Pest. Manag. Sci2010，，1： | 1 |
| 20 | Induction effects of host plants on insecticide susceptibility and detoxification enzymes of Bemisia tabaci (Hemiptera: Aleyrodidae)显示文摘 | WenXie ShaoliWang QingjunWu YuntaoFeng HuipengPan XiaoguoJiao LongZhou XinYang WeiFu HaiyuanTeng BaoyunXu YoujunZhang | 2010 | Pest Manag Sci2010，，1： | 1 |
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