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Defence Technology（防务技术） 2024年第3期33卷 374-385页

作者： Bihui hong Wenbin Li Yiming Li Zhiwei guo Binyou Yan Ministerial Key Laboratory of ZNDY Nanjing University of Science and TechnologyNanjing 210094China State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China Xiamen Tungsten Co. Ltd.Xiamen 361004China

This paper proposes a type of double-layer charge liner fabricated using chemical vapor deposition(CVD)that has tungsten as its inner *** feasibility of this design was evaluated through penetration ***-layer charge liners were fabricated by using CVD to deposit tungsten layers on the inner surfaces of pure T2 copper *** microstructures of the tungsten layers were analyzed using a scanning electron microscope(SEM).The feasibility analysis was carried out by pulsed X-rays,slug-retrieval test and static penetration *** shaped charge jet forming and penetration law of inner tungsten-coated double-layer liner were studied by numerical simulation *** results showed that the double-layer liners could form well-shaped *** errors between the X-ray test results and the numerical results were within 11.07%.A slug-retrieval test was found that the retrieved slug was similar to a numerically simulated *** with the traditional pure copper shaped charge jet,the penetration depth of the double-layer shaped charge liner increased by 11.4% and>10.8% *** summary,the test results are good,and the numerical simulation is in good agreement with the test,which verified the feasibility of using the CVD method to fabricate double-layer charge liners with a high-density and high-strength refractory metal as the inner liner.

关键词： Shaped charge Chemical vapor deposition Tungsten Double-layer charge liner X-ray Penetration

Liver transplantation following two conversions in a patient with huge hepatocellular carcinoma and portal vein invasion:A case report

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World Journal of Gastroenterology 2024年第36期30卷 4071-4077页

作者： Li-Cong liang Wen-Sou Huang Zhao-Xiong guo hong-Ji You Yong-Jian guo Ming-Yue Cai Li-Teng Lin guo-Ying Wang Kang-Shun Zhu Department of Minimally Invasive Interventional Radiology The Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510260Guangdong ProvinceChina Department of Nuclear Medicine The Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510260Guangdong ProvinceChina Department of Hepatobiliary Surgery The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou 510120Guangdong ProvinceChina

BACKGROUND Surgical resection and liver transplantation(LT)are the most effective curative options for hepatocellular carcinoma(HCC).However,few patients with huge HCC(>10 cm in diameter),especially those with portal vein tumor thrombus(PVTT),can receive these *** internal radiation therapy(SIRT)can be used as a conversion therapy for them because it has the dual benefit of shrinking tumors and increasing residual hepatic ***,in patients with huge HCC,high lung absorbed dose often prevents them from receiving *** SUMMARY A 35-year-old man was admitted because of emaciation and pain in the hepatic region for about 1 *** computed tomography scan showed a 20.2 cm×19.8 cm tumor located in the right lobe–left medial lobes with right portal vein and right hepatic vein *** the pathological type of HCC was confirmed by biopsy,two conversions were *** first one was drug-eluting bead transarterial chemoembolization plus hepatic arterial infusion chemotherapy and lenvatinib and sintilimab,converted to SIRT,and the second one was sequential SIRT with continued systemic *** tumor size significantly decreased from 20.2 cm×19.8 cm to 16.2 cm×13.8 cm,then sequentially to 7.8 cm×6.8 *** the meantime,the ratio of spared volume to total liver volume increased gradually from 34.4%to 55.7%,then to 62.9%.Furthermore,there was visualization of the portal vein,indicating regression of the tumor ***,owing to the new tumor in the left lateral lobe,the patient underwent LT instead of resection without major *** Patients with inoperable huge HCC with PVTT could be converted to SIRT first and accept surgery sequentially.

关键词： Hepatocellular carcinoma Two conversions Liver transplantation Yttrium-90 resin microspheres Transarterial chemoembolization Hepatic arterial infusion chemotherapy Case report

New process for treating boron-bearing iron ore by flash reduction coupled with magnetic separation

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International Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 473-484页

作者： Qipeng Bao Lei guo hong Yong Sohn Haibin Zuo Feng Liu Yongliang Gao Zhancheng guo State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Department of Materials Science&Engineering University of UtahUtah 84112USA China ENFI Engineering Corporation Beijing 100038China

Boron is an important industrial raw material often sourced from minerals containing different compounds that cocrystallize,which makes it difficult to separate the mineral phases through conventional *** study proposed a new treatment called flash reduction-melting separation(FRMS)for boron-bearing iron *** this method,the concentrates were first flash-reduced at the temperature under which the particles melt,and the slag and the reduced iron phases disengaged at the particle *** reduc-tion and melting effects were achieved above 1550℃.The B_(2)O_(3) content in the separated slag was over 18wt%,and the B content in the iron was less than 0.03wt%.The proposed FRMS method was tested to investigate the effects of factors such as ore particle size and tem-perature on the reduction and melting steps with and without pre-reducing the raw *** mineral phase transformation and morphology evolution in the ore particles during FRMS were also comprehensively analyzed.

关键词： ludwigite boron-bearing iron concentrate flash reduction melting separation boron

Hybrid vibration isolation optimization of a flexible manipulator based on neural network agent model

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Chinese Journal of Aeronautics 2024年第5期37卷 482-505页

作者： Yongxin ZHANG liang LI Dingguo ZHANG Wei-Hsin LIAO Xian guo School of Science Nanjing University of Science and TechnologyNanjing 210094China Department of Mechanical and Automation Engineering The Chinese University of Hong KongHong KongChina

Segmented Active Constrained Layer Damping(SACLD)is an intelligent vibration-damping structure,which could be applied to the sectors of aviation,aerospace,and transportation engineering to reduce the vibration of flexible ***,machine learning technology is widely used in the engineering field because of its efficient multi-objective *** dynamic simulation of a rotational segmental flexible manipulator system is presented,in which enhanced active constrained layer damping is carried out,and the neural network model of Genetic Algorithm-Back Propagation(GA-BP)algorithm is *** suppression and structural optimization of the SACLD manipulator model are studied based on vibration mode and damping *** modal responses of the SACLD manipulator model at rest and rotation are *** addition,the four model indices are optimized using the GA-BP neural network:axial incision size,axial incision position,circumferential incision size,and circumferential incision ***,the best model for vibration suppression is obtained.

关键词： Machine learning Vibration suppression Flexible manipulator Segmented active constrained layer damping Structural optimization

High-Quality van der Waals Epitaxial CsPbBr3 Film Grown on Monolayer Graphene Covered TiO2 for High-Performance Solar Cells

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Energy & Environmental Materials 2024年第4期7卷 239-246页

作者： Zhaorui Wen Chao liang Shengwen Li Gang Wang Bingchen He Hao Gu Junpeng Xie Hui Pan Zhenhuang Su Xingyu Gao guo hong Shi Chen Institute of Applied Physics and Materials Engineering University of Macau MOE Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter State Key Laboratory for Mechanical Behavior of Materials School of Physics Xi'an Jiaotong University Shanghai Institute of Applied Physics Chinese Academy of Sciences Department of Materials Science and Engineering & Center of Super-Diamond and Advanced Films City University of Hong Kong

Two-dimensional materials have been widely used to tune the growth and energy-level alignment of ***,their incomplete passivation and chaotic usage amounts are not conducive to the preparation of highquality perovskite ***,we succeeded in obtaining higher-quality CsPbBr3films by introducing large-area monolayer graphene as a stable physical overlay on top of TiO2substrates.

关键词： all-inorganic perovskite solar cells buried interface modification monolayer graphene van der Waals epitaxial growth

Mechanical Behavior Based on Aggregates Microstructure of Ultra-high Performance Concrete

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Journal of Wuhan University of Technology(Materials Science) 2024年第3期39卷 673-681页

作者：丁庆军 ZHOU Changsheng 张高展 guo hong LI Yang ZHANG Yongyuan guo Kaizheng School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Advanced Building Materials Key Laboratory of Anhui Province School of Material Science and Chemical EngineeringAnhui Jianzhu UniversityHefei 230601China China Railway 17th Bureau Group Co. Ltd.Taiyuan 030006China

We developed ultra-high performance concrete(UHPC)incorporating mullite sand and brown corundum sand(BCS),and the quartz sand UHPC was utilized to prepare for *** properties of compressive strength,elastic modulus,ultrasonic pulse velocity,flexural strength,and toughness were *** electron microscopy and nanoindentation were also conducted to reveal the underlying mechanisms affecting macroscopic *** to the superior interface bonding properties between mullite sand and matrix,the compressive strength and flexural toughness of UHPC have been significantly *** sand and BCS aggregates have higher stiffness than quartz sand,contributing to the excellent elastic modulus exhibited by *** stiffness and volume of aggregates have a more significant impact on the elastic modulus of UHPC than interface performance,and the latter contributes more to the strength of *** study will provide a reference for developing UHPC with superior elastic modulus for structural engineering.

关键词： ultra-high performance concrete mechanical properties fine aggregates microstructure nanoindentation

Designing salt stress-resilient crops:Current progress and future challenges

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Journal of Integrative Plant Biology 2024年第3期66卷 303-329页

作者： Xiaoyan liang Jianfang Li Yongqing Yang Caifu Jiang Yan guo State Key Laboratory of Plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijing 100094China State Key Laboratory of Nutrient Use and Management College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100194China Center for Crop Functional Genomics and Molecular Breeding China Agricultural UniversityBeijing 100094China Frontiers Science Center for Molecular Design Breeding China Agricultural UniversityBeijing 100193China

Excess soil salinity affects large regions of land and is a major hindrance to crop production ***,understanding the molecular mechanisms of plant salt tolerance has scientific importance and practical *** recent decades,studies have characterized hundreds of genes associated with plant responses to salt stress in different plant *** studies have substantially advanced our molecular and genetic understanding of salt tolerance in plants and have introduced an era of molecular design breeding of salt-tolerant *** review summarizes our current knowledge of plant salt tolerance,emphasizing advances in elucidating the molecular mechanisms of osmotic stress tolerance,salt-ion transport and compartmentalization,oxidative stress tolerance,alkaline stress tolerance,and the trade-off between growth and salt *** also examine recent advances in understanding natural variation in the salt tolerance of crops and discuss possible strategies and challenges for designing salt stress-resilient *** focus on the model plant Arabidopsis(Arabidopsis thaliana)and the four most-studied crops:rice(Oryza sativa),wheat(Triticum aestivum),maize(Zea mays),and soybean(Glycine max).

关键词： molecular design breeding salt stress-resilient crop salt tolerance

The journey towards physiology and pathology: Tracing the path of neuregulin 4

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Genes & Diseases 2024年第2期11卷 687-700页

作者： Min Chen Jieying Zhu hongyang Luo Wangjing Mu liang guo School of Exercise and Health and Shanghai Frontiers Science Research Base of Exercise and Metabolic Health Shanghai University of SportShanghai 200438China

Neuregulin 4 (Nrg4),an epidermal growth factor (EGF) family member,can bind to and activate the ErbB4 receptor tyrosine ***4 has five different isoforms by alternative splicing and performs a wide variety of ***4 is involved in a spectrum of physiological processes including neurobiogenesis,lipid metabolism,glucose metabolism,thermogenesis,and *** pathological processes,Nrg4 inhibits inflammatory factor levels and suppresses apoptosis in inflammatory *** addition,Nrg4 could ameliorate obesity,insulin resistance,and cardiovascular ***,Nrg4 improves non-alcoholic fatty liver disease (NAFLD) by promoting autophagy,improving lipid metabolism,and inhibiting cell death of ***,Nrg4 is closely related to the development of cancer,hyperthyroidism,and some other ***,elucidation of the functional role and mechanisms of Nrg4 will provide a clearer view of the therapeutic potential and possible risks of Nrg4.

关键词： Angiogenesis Cardiovascular diseases Inflammation Insulin resistance Lipid and glucose metabolism NAFLD Neurobiogenesis Obesity

Tracing the sources of nutrients through the Tsushima/Korea Strait

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Acta Oceanologica Sinica 2024年第6期43卷 142-152页

作者： Jing Zhang Xinyu guo Lei Zhu Jianlong Feng liang Zhao Key Laboratory of Marine Resource Chemistry and Food Technology Ministry of EducationTianjin 300457China College of Marine and Environmental Science Tianjin University of Science and TechnologyTianjin 300457China Center for Marine Environmental Studies Ehime UniversityMatsuyama 790-8577Japan

The nutrients from the East China Sea(ECS) through the Tsushima/Korea Strait(TS) strongly impact the eco system of the Japan Sea(JS).The complex origins of the Tsushima Warm Current and the various nutrient sources in the ECS result in complex spatial-temporal variations in nutrients in the *** a physical-biological model with a tracking technique,we studied the effects of nutrient sources from the ECS on the *** all the nutrient sources,the Kuroshio has the highest nutrient concentrations in the *** maximum concentration occurs at the bottom,while those of rivers and atmospheric depo sition occur at the surface,and that of the Taiwan Strait occurs in the middle *** nutrient transport through the TS exhibits similar seasonal variations,as does the volume *** transport of nutrients from the Kuroshio accounts for more than 85% of the *** transport of nutrients from the Taiwan Strait is greater during autumn and *** transport of dissolved inorganic nitrogen(DIN) from both rivers and atmospheric deposition through the TS peak in *** transport cannot be equated with volume *** DIN in the less saline zone originates not only from rivers but also from atmospheric deposition and the *** transport of nutrients from the Taiwan Strait is not as significant as its volume transport in the TS.

关键词： dissolved inorganic nitrogen dissolved inorganic phosphate East China Sea Japan Sea nutrient transport

Collective Movement Simulation:Methods and Applications

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Machine Intelligence Research 2024年第3期21卷 452-480页

作者： Hua Wang Xing-Yu guo Hao Tao Ming-liang Xu School of Computer and Artificial Intelligence Zhengzhou UniversityZhengzhou450001China Engineering Research Center of Intelligent Swarm Systems Ministry of EducationZhengzhou450001China National Supercomputing Center in Zhengzhou Zhengzhou450001China China Ship Development and Design Center Wuhan430060China

Collective movement simulations are challenging and important in many areas,including life science,mathematics,physics,information science and public *** this survey,we provide a comprehensive review of the state-of-the-art techniques for collective movement *** start with a discussion on certain concepts to help beginners understand it more ***,we analyze the intelligence among different collective objects and the emphasis in different ***,we classify existing collective movement simulation methods into four categories according to their effects,namely versatility,accuracy,dynamic adaptability,and assessment feedback ***,we introduce five applications of layout optimization,emergency control,dispatching,unmanned systems,and other derivative ***,we summarize possible future research directions.

关键词： Collective movement simulation multiple objects multiple discipline simulation effect collective intelligence