工业工程最新文献

筛选
英文 中文
Understanding the environmental impact and risks of organic additives in plastics: A call for sustained research and sustainable solutions 了解塑料中有机添加剂的环境影响和风险:呼吁开展持续研究并提出可持续的解决方案
IF 5.3 2区 环境科学与生态学
Emerging Contaminants Pub Date : 2024-07-06 DOI: 10.1016/j.emcon.2024.100388
Zehui Wang , Gang Liang , Shanxue Jiang , Fang Wang , Haifeng Li , Bingru Li , Hong Zhu , Anxiang Lu , Wenwen Gong
{"title":"Understanding the environmental impact and risks of organic additives in plastics: A call for sustained research and sustainable solutions","authors":"Zehui Wang ,&nbsp;Gang Liang ,&nbsp;Shanxue Jiang ,&nbsp;Fang Wang ,&nbsp;Haifeng Li ,&nbsp;Bingru Li ,&nbsp;Hong Zhu ,&nbsp;Anxiang Lu ,&nbsp;Wenwen Gong","doi":"10.1016/j.emcon.2024.100388","DOIUrl":"https://doi.org/10.1016/j.emcon.2024.100388","url":null,"abstract":"<div><p>The pervasive use of plastics in modern society necessitates the incorporation of organic additives to enhance their performance. However, the leachability of these additives and their potential adverse effects on environmental and biological health have raised significant concerns. This review provides a comprehensive evaluation of the factors influencing the release of organic additives from plastics and examines their detrimental impacts on organisms and humans. It discusses effective degradation techniques, such as photodegradation and biodegradation, to mitigate these adverse effects. Furthermore, this review explores recent advancements in eco-friendly plastic additives, including bio-based plasticizers, flame retardants, antioxidants, and environmentally friendly non-biobased additives. It highlights their potential as alternatives to traditional additives. This review integrates the latest research findings and emerging trends, underscoring the need for continued research and development of sustainable solutions. It aims to facilitate the transition to environmentally friendly degradation techniques and greener plastic additives. This effort contributes to environmental protection and sustainable development, providing crucial guidance and insights for future research and practical applications.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000891/pdfft?md5=30b8067a5f66741f010e118448b9961b&pid=1-s2.0-S2405665024000891-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141583441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Amphiphilic block and random copolymers: aggregation and hydrophobic modification on metal-free tanned collagen fibers 两亲嵌段共聚物和无规共聚物:无金属鞣革胶原纤维上的聚集和疏水改性
Journal of Leather Science and Engineering Pub Date : 2024-07-03 DOI: 10.1186/s42825-024-00163-9
Yudan Yi, Xinxin Fan, Qijun Li, Ya-nan Wang
{"title":"Amphiphilic block and random copolymers: aggregation and hydrophobic modification on metal-free tanned collagen fibers","authors":"Yudan Yi,&nbsp;Xinxin Fan,&nbsp;Qijun Li,&nbsp;Ya-nan Wang","doi":"10.1186/s42825-024-00163-9","DOIUrl":"10.1186/s42825-024-00163-9","url":null,"abstract":"<div><p>Hydrophobicity enhancement of metal-free leather, which is crucial for improving its comprehensive performance, can be achieved by using amphiphilic copolymer retanning agents. However, the relationship between the sequential structure and the hydrophobic modification effect of amphiphilic copolymers remains unclear. Herein, an amphiphilic block copolymer was synthesized using stearyl methacrylate and 2-(dimethylamino)ethyl methacrylate via atom transfer radical polymerization, and the corresponding random copolymer with similar monomer compositions and molecular weights was prepared for comparison. The aggregation behavior of block and random copolymers was investigated. DLS and TEM results indicate that the block copolymer exhibits a larger aggregate size than the corresponding random copolymer. Molecular dynamics simulations suggest that the block copolymer aggregate exhibit a thicker hydrophilic shell and more concentrated distribution of cationic DMA block than the random copolymer aggregate. Subsequently, the block and random copolymers were used for the hydrophobic modification of metal-free tanned collagen fibers (CFs). The block copolymer shows superior binding capacity to CFs than the random one because of its larger size and more concentrated charge distribution. Hence, the block copolymer can form a dense and uniform hydrophobic film on the surface of collagen fibrils and endow CFs with higher hydrophobicity than the random one. This work provides theoretical guidance for modulating the hydrophobicity of CFs by tailoring the sequential structure of amphiphilic copolymers, which is expected to inspire the manufacturing of high-performance metal-free leather.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-024-00163-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141495484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cover Image, Volume 4, Number 2, June 2024 封面图片,第 4 卷第 2 号,2024 年 6 月
IF 3.4
国际机械系统动力学学报(英文) Pub Date : 2024-07-03 DOI: 10.1002/msd2.12120
{"title":"Cover Image, Volume 4, Number 2, June 2024","authors":"","doi":"10.1002/msd2.12120","DOIUrl":"https://doi.org/10.1002/msd2.12120","url":null,"abstract":"<p><b>Cover Caption</b>: A velocity-based space–time finite element method (v-ST/FEM) is presented for analyzing dynamic soil–structure interaction in earth structures such as dams, tunnels, and embankments subjected to vibrational loading from high-speed trains, road traffic, underground explosions, and earthquakes. The method incorporates the Lysmer–Kuhlemeyer viscous boundary conditions to truncate the unbounded soil domain and includes time-dependent boundary conditions to model energy flow. The v-ST/FEM is third-order accurate in time. It introduces negligible numerical dispersion error, thus enabling precise computation of the dynamic responses of soils and structures during long-duration earthquake motions.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":60486,"journal":{"name":"国际机械系统动力学学报(英文)","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/msd2.12120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141556607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Environmental genotoxicity assessment of nanoparticles using human airway epithelial model 利用人体气道上皮细胞模型评估纳米颗粒的环境遗传毒性
IF 5.3 2区 环境科学与生态学
Emerging Contaminants Pub Date : 2024-07-02 DOI: 10.1016/j.emcon.2024.100386
Sirirak Hemmaphan , Kotchapawn Somprasong , Narisa K. Bordeerat
{"title":"Environmental genotoxicity assessment of nanoparticles using human airway epithelial model","authors":"Sirirak Hemmaphan ,&nbsp;Kotchapawn Somprasong ,&nbsp;Narisa K. Bordeerat","doi":"10.1016/j.emcon.2024.100386","DOIUrl":"https://doi.org/10.1016/j.emcon.2024.100386","url":null,"abstract":"<div><p>Because of the growing use of nanoparticles (NPs) in manufacturing consumer goods, it is essential to identify new <em>in vitro</em> approaches to assess their toxicity and improve risk assessment. Humans are exposed to NPs from contaminated aerosol via multiple routes, such as inhalation, ingestion, and dermal absorption. Human airway epithelial cells are a promising tool for assessing the genotoxicity of NPs <em>in vitro</em>. This study aims to evaluate the genotoxic effects of titanium dioxide (TiO<sub>2</sub>), zinc oxide (ZnO), and silver oxide (AgO) NPs on human bronchial/tracheal epithelial cells (HBTECs) using the comet assay. The exposure duration was set to 24 h, and two- (2D) and three-dimensional (3D) spheroid models were used. The genotoxicity of TiO<sub>2</sub> NPs in 2D and 3D HBTEC cells was not statistically significant based on the concentration points examined <em>in vitro</em>. ZnO NPs at concentrations ranging from 10 to 50 μg/mL, when exposed to 2D HBTEC cultures for 24 h, did not show any genotoxic effects. However, genotoxicity was observed at higher concentrations. In contrast, treatment of 2D HBTEC cultures with AgO NPs increased the percentage of tail DNA damage from 50 to 100 μg/mL in a concentration-dependent manner. Within a controlled laboratory environment, ZnO and AgO NPs exhibited a reduction in the length of the tail in 3D spheroid cells. When evaluating genotoxicity, spheroids (3D) represent <em>in vivo</em>-like cell behavior more accurately than monolayer cultures (2D). Collectively, our findings illustrate the harmful effects of NPs on genetic material and emphasize the significance of employing cell culture models to evaluate the risk of toxicity.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405665024000878/pdfft?md5=a3503e6b0acd0c962874a059db274da1&pid=1-s2.0-S2405665024000878-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unlocking the potential: A comprehensive review on blast furnace slag and silica analog adsorbents for sustainable industrial and pharmaceutical pollution control and resource utilization 释放潜力:高炉矿渣和二氧化硅类似物吸附剂用于可持续工业和制药污染控制及资源利用的综合评述
IF 5.3 2区 环境科学与生态学
Emerging Contaminants Pub Date : 2024-07-02 DOI: 10.1016/j.emcon.2024.100387
Qing-Guo Dong , Jing Li , Zhi-Qing Kang , Muhammad Imran Anwar , Muhammad Asad , Baoji Miao , Shuanghu Wang , Ayesha Younas
{"title":"Unlocking the potential: A comprehensive review on blast furnace slag and silica analog adsorbents for sustainable industrial and pharmaceutical pollution control and resource utilization","authors":"Qing-Guo Dong ,&nbsp;Jing Li ,&nbsp;Zhi-Qing Kang ,&nbsp;Muhammad Imran Anwar ,&nbsp;Muhammad Asad ,&nbsp;Baoji Miao ,&nbsp;Shuanghu Wang ,&nbsp;Ayesha Younas","doi":"10.1016/j.emcon.2024.100387","DOIUrl":"https://doi.org/10.1016/j.emcon.2024.100387","url":null,"abstract":"<div><p>Blast furnace slag (BFS) is a secondary material generated during the process of producing iron in blast furnaces, prompting scholars to concentrate on its efficient management and broad application for the creation of valuable commodities. This study examines the mineral composition, adsorption characteristics, and utilization of BFS and its silica counterparts. Recent developments in the application of BFS and its functionalized materials for pollution mitigation are examined, specifically concentrating on the elimination of nitrogen, phosphorus, metal ions, pharmaceutical effluents, waste oils, and dye molecules from wastewater. Moreover, these inexpensive adsorbents exhibit significant specific surface areas, possess microporous configurations, and contain alkaline components like calcium oxide, magnesium oxide, and aluminum oxide. This review further elucidates the present state of BFS-based adsorbents in the absorption of acid gases, with a specific focus on CO₂. The problems associated with widespread BFS usage are analyzed, and potential solutions for effective resource utilization are discussed.</p></div>","PeriodicalId":11539,"journal":{"name":"Emerging Contaminants","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S240566502400088X/pdfft?md5=41d23923a9bc42ffb40b425fb5bbf4ae&pid=1-s2.0-S240566502400088X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On-demand engineered double-network gelatin/silicate composited hydrogels with enhanced wet adhesion and stable release of bioactive ion for promoting wound healing 按需设计的明胶/硅酸盐双网复合水凝胶具有更强的湿粘附性和生物活性离子的稳定释放,可促进伤口愈合
Journal of Leather Science and Engineering Pub Date : 2024-07-02 DOI: 10.1186/s42825-024-00161-x
Xiaomin Luo, Lufeng Ji, Fen Ao, Chen Yang, Jiang Chang, Changyu Yin, Huijun Ren, Ming Teng, Liuying Li, Xinhua Liu
{"title":"On-demand engineered double-network gelatin/silicate composited hydrogels with enhanced wet adhesion and stable release of bioactive ion for promoting wound healing","authors":"Xiaomin Luo,&nbsp;Lufeng Ji,&nbsp;Fen Ao,&nbsp;Chen Yang,&nbsp;Jiang Chang,&nbsp;Changyu Yin,&nbsp;Huijun Ren,&nbsp;Ming Teng,&nbsp;Liuying Li,&nbsp;Xinhua Liu","doi":"10.1186/s42825-024-00161-x","DOIUrl":"10.1186/s42825-024-00161-x","url":null,"abstract":"<div><p>Silicate bioceramics have demonstrated great potential in hydrogel dressings for wound healing due to their special origins of promoting endothelial cell angiogenesis and inhibiting apoptosis of cardiomyocyte. However, there are still some deficiencies, such as insufficient biological activity, instability of silicate ion release, and lower wet adhesion on wounds with tissue exudate, limiting their further clinical applications. Herein, inspired by mussels, a multifunctional double-network hydrogel (FS/PAM-Gel-PDA) wound dressing composited gelatin with silicate ceramic powder with satisfactory wet adhesion, stable release of bioactive ions, hemostasis, and the ability of promoting vascular regeneration was engineered through specifically grafting dopamine to gelatin and introducing ferrous silicate ceramic powder into the hydrogel. The comprehensive experimental results substantiate that the FS/PAM-Gel-PDA has wet-adhesion strength of up to 21.78 kPa, and remains stably adherent to porcine myocardial tissues intuitively after bending, twisting, soaking in water, and stretching. The test results of ion release behavior in vitro show that the oxidation and agglomeration of ferrous silicate ceramic powder can be effectively inhibited by using dopamine to form an antioxidant layer on the surface of ceramic powder, and thus, the stable release of Fe<sup>2+</sup> and SiO<sub>4</sub>\u0000<sup>4−</sup> effective ions can be realized. The animal experiment exhibits that FS/PAM-Gel-PDA can achieve rapid hemostasis in the lethal liver defect model. Meanwhile, the FS/PAM-Gel-PDA reveals the remarkable ability to promote wound healing in a full-thickness skin injury model, which can obviously accelerate skin re-epithelialization. To sum up, the FS/PAM-Gel-PDA has excellent wet adhesion and stable release of active ions to accelerate angiogenesis, which shows great potential in promoting wound healing.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":640,"journal":{"name":"Journal of Leather Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://JLSE.SpringerOpen.com/counter/pdf/10.1186/s42825-024-00161-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141495495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quasi-static and dynamic compressive behaviour of additively manufactured Menger fractal cube structures 门格尔分形立方体结构的准静态和动态压缩行为
IF 5
Defence Technology(防务技术) Pub Date : 2024-07-01 DOI: 10.1016/j.dt.2023.12.010
Damith Mohotti , Dakshitha Weerasinghe , Madhusha Bogahawaththa , Hongxu Wang , Kasun Wijesooriya , Paul J. Hazell
{"title":"Quasi-static and dynamic compressive behaviour of additively manufactured Menger fractal cube structures","authors":"Damith Mohotti ,&nbsp;Dakshitha Weerasinghe ,&nbsp;Madhusha Bogahawaththa ,&nbsp;Hongxu Wang ,&nbsp;Kasun Wijesooriya ,&nbsp;Paul J. Hazell","doi":"10.1016/j.dt.2023.12.010","DOIUrl":"10.1016/j.dt.2023.12.010","url":null,"abstract":"<div><p>This paper presents the first-ever investigation of Menger fractal cubes' quasi-static compression and impact behaviour. Menger cubes with different void ratios were 3D printed using polylactic acid (PLA) with dimensions of 40 mm × 40 mm × 40 mm. Three different orders of Menger cubes with different void ratios were considered, namely M1 with a void ratio of 0.26, M2 with a void ratio of 0.45, and M3 with a void ratio of 0.60. Quasi-static Compression tests were conducted using a universal testing machine, while the drop hammer was used to observe the behaviour under impact loading. The fracture mechanism, energy efficiency and force-time histories were studied. With the structured nature of the void formation and predictability of the failure modes, the Menger geometry showed some promise compared to other alternatives, such as foams and honeycombs. With the increasing void ratio, the Menger geometries show force-displacement behaviour similar to hyper-elastic materials such as rubber and polymers. The third-order Menger cubes showed the highest energy absorption efficiency compared to the other two geometries in this study. The findings of the present work reveal the possibility of using additively manufactured Menger geometries as an energy-efficient system capable of reducing the transmitting force in applications such as crash barriers.</p></div>","PeriodicalId":58209,"journal":{"name":"Defence Technology(防务技术)","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214914723003331/pdfft?md5=aa0320c33e9559fd81a84e78688e2fe6&pid=1-s2.0-S2214914723003331-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139029880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Redefining biofuels: Investigating oil palm biomass as a promising cellulose feedstock for nitrocellulose-based propellant production 重新定义生物燃料:研究油棕生物质作为硝化纤维素推进剂生产的纤维素原料的前景
IF 5
Defence Technology(防务技术) Pub Date : 2024-07-01 DOI: 10.1016/j.dt.2023.09.014
Khoirul Solehah binti Abdul Rahim , Alinda binti Samsuri , Siti Hasnawati binti Jamal , Siti Aminah binti Mohd Nor , Siti Nor Ain binti Rusly , Hafizah binti Ariff , Nur Shazwani binti Abdul Latif
{"title":"Redefining biofuels: Investigating oil palm biomass as a promising cellulose feedstock for nitrocellulose-based propellant production","authors":"Khoirul Solehah binti Abdul Rahim ,&nbsp;Alinda binti Samsuri ,&nbsp;Siti Hasnawati binti Jamal ,&nbsp;Siti Aminah binti Mohd Nor ,&nbsp;Siti Nor Ain binti Rusly ,&nbsp;Hafizah binti Ariff ,&nbsp;Nur Shazwani binti Abdul Latif","doi":"10.1016/j.dt.2023.09.014","DOIUrl":"10.1016/j.dt.2023.09.014","url":null,"abstract":"<div><p>This review paper explores the potential of oil palm biomass as a valuable cellulose source for the production of nitrocellulose-based propellants, contributing to the green revolution and sustainable energy solutions. It highlights the availability of the corresponding biomass in Malaysia and in line with global studies, the chemical compositions, as well as a brief description of current technologies for converting biomass of oil palm into value added products specifically cellulose. Steps to achieve maximum utilization of biomass from oil palm industry for cellulose production and prospective source for nitrocellulose-based propellant are also proposed. The methodology section outlines the pre-treatment of lignocellulosic fibres, cellulose extraction, and nitrocellulose production processes. Overall, the review underscores the prospective of palm oil biomass as a sustainable cellulose source for propellant manufacturing, while acknowledging the need for further research and advancements in the field.</p></div>","PeriodicalId":58209,"journal":{"name":"Defence Technology(防务技术)","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214914723002581/pdfft?md5=ed2a500120feff61a0805abe6ea32e8e&pid=1-s2.0-S2214914723002581-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134995160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent progress on impact induced reaction mechanism of reactive alloys 活性合金冲击诱导反应机理研究的最新进展
IF 5
Defence Technology(防务技术) Pub Date : 2024-07-01 DOI: 10.1016/j.dt.2023.11.002
Yansong Yang, Chuanting Wang, Yuanpei Meng, Yue Ma, Lei Guo, Yuan He, Zhichao Sun, Yong He
{"title":"Recent progress on impact induced reaction mechanism of reactive alloys","authors":"Yansong Yang,&nbsp;Chuanting Wang,&nbsp;Yuanpei Meng,&nbsp;Yue Ma,&nbsp;Lei Guo,&nbsp;Yuan He,&nbsp;Zhichao Sun,&nbsp;Yong He","doi":"10.1016/j.dt.2023.11.002","DOIUrl":"10.1016/j.dt.2023.11.002","url":null,"abstract":"<div><p>In recent years, in order to improve the destructive effectiveness of munitions, the use of new types of destructive elements is an important way to improve destructive effectiveness. As a new type of reactive material, reactive alloy contains a large portion of reactive metal elements (Al, Mg, Ti, Zr, etc.), which breaks up under high-velocity impact conditions, generating a large number of high-temperature combustible fragments, which undergo a violent combustion reaction with air. Compared with traditional metal polymers (Al-PTFE) and other reactive composites, it has higher density and strength, excellent mechanical properties and broader application prospects. Currently, researchers have mainly investigated the impact energy release mechanism of reactive alloys through impact tests, and found that there are several important stages in the process of the material from fragmentation to reaction, i.e., impact fragmentation of the material, rapid heating and combustion reaction. This paper focuses on three problems that need to be solved in the impact-induced energy release process of reactive alloys, namely: the fragmentation mechanism and size distribution law of the fragments produced by the impact of the material on the target, the relationship between the transient temperatures and the size of the fragments, and the reaction temperatures and size thresholds of the fragments to undergo the chemical reaction. The current status of the research of the above problems is reviewed, some potential directions to reveal the impact induced reaction mechanism of reactive alloy is discussed.</p></div>","PeriodicalId":58209,"journal":{"name":"Defence Technology(防务技术)","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214914723002908/pdfft?md5=923ecfd697ea520de94f8c8815b11852&pid=1-s2.0-S2214914723002908-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135510197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Underwater four-quadrant dual-beam circumferential scanning laser fuze using nonlinear adaptive backscatter filter based on pauseable SAF-LMS algorithm 基于稀疏SAF-LMS算法的非线性自适应后向散射滤波器水下四象限双波束周向扫描激光引信
IF 5
Defence Technology(防务技术) Pub Date : 2024-07-01 DOI: 10.1016/j.dt.2023.06.011
Guangbo Xu , Bingting Zha , Hailu Yuan , Zhen Zheng , He Zhang
{"title":"Underwater four-quadrant dual-beam circumferential scanning laser fuze using nonlinear adaptive backscatter filter based on pauseable SAF-LMS algorithm","authors":"Guangbo Xu ,&nbsp;Bingting Zha ,&nbsp;Hailu Yuan ,&nbsp;Zhen Zheng ,&nbsp;He Zhang","doi":"10.1016/j.dt.2023.06.011","DOIUrl":"10.1016/j.dt.2023.06.011","url":null,"abstract":"<div><p>The phenomenon of a target echo peak overlapping with the backscattered echo peak significantly undermines the detection range and precision of underwater laser fuzes. To overcome this issue, we propose a four-quadrant dual-beam circumferential scanning laser fuze to distinguish various interference signals and provide more real-time data for the backscatter filtering algorithm. This enhances the algorithm loading capability of the fuze. In order to address the problem of insufficient filtering capacity in existing linear backscatter filtering algorithms, we develop a nonlinear backscattering adaptive filter based on the spline adaptive filter least mean square (SAF-LMS) algorithm. We also designed an algorithm pause module to retain the original trend of the target echo peak, improving the time discrimination accuracy and anti-interference capability of the fuze. Finally, experiments are conducted with varying signal-to-noise ratios of the original underwater target echo signals. The experimental results show that the average signal-to-noise ratio before and after filtering can be improved by more than 31 dB, with an increase of up to 76% in extreme detection distance.</p></div>","PeriodicalId":58209,"journal":{"name":"Defence Technology(防务技术)","volume":null,"pages":null},"PeriodicalIF":5.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214914723001782/pdfft?md5=f82a9aa8dfdfa1de35dc39928907f3ac&pid=1-s2.0-S2214914723001782-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44025419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信