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Artículos de revistas sobre el tema "Micro-Attentions"

Autor: Grafiati

Publicado: 14 de diciembre de 2024

Última modificación: 31 de julio de 2025

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1

Luo, Liang, Zheng Yi Jiang, Dong Bin Wei, and Xiaofeng He. "Study on Micro Hydroforming of Metals." Advanced Materials Research 887-888 (February 2014): 1133–38. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.1133.

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Micro hydroforming has an ability to manufacture complex 3D micro parts at a high production rate and has drawn increasing attentions. Brief understanding of macro hydroforming, for instance, deep drawing, is necessary to understand the principle of micro hydroforming. Then, special phenomena, such as size effects, occurred at micro scale are discussed and the related theories explaining these phenomena are introduced. Based on the similarities and differences between micro and macro hydroforming, experiments and simulation which consider the size effects are reviewed.

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2

Takalkar, Madhumita A., Selvarajah Thuseethan, Sutharshan Rajasegarar, Zenon Chaczko, Min Xu, and John Yearwood. "LGAttNet: Automatic micro-expression detection using dual-stream local and global attentions." Knowledge-Based Systems 212 (January 2021): 106566. http://dx.doi.org/10.1016/j.knosys.2020.106566.

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3

Huang, Bo Wun, Jung Ge Tseng, and Chien Hua Chang. "Finite Element Analysis on Vibration of a Piezoelectric Micro Pump." Applied Mechanics and Materials 789-790 (September 2015): 861–64. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.861.

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Due to the rise of biological and MEMS technology in recent years, some micro flow system components have been paid attentions to developed by many investigators. The importance of micro-pumps manufactured is higher than the other part of micro flow system since it is the power source of the entire micro-flow system and responsible for driving working fluid in the microfluidic system. In actual operation, the instability and bad dynamic characteristics of the micro-pump will cause larger fluid flow mobility error, such as transport behavior and response procedures failure, etc., and even damag

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4

Liu, Ting Ting, Wei Su, Tao Yang, Bin Han, and Chao Wang. "Research on Characteristics of Mercury Droplet Flow in Micro Acceleration Switch." Key Engineering Materials 562-565 (July 2013): 328–33. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.328.

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Unlike the solid-solid contact of traditional micro acceleration switch, liquid metal can be utilized to solve the disadvantage of solid-solid contact, such as contact wear and signal bounce. Liquid-metal micro switches have demonstrated no contact bounce, low switch-on time, low contact resistance, long life, and the capability to handle large currents. So the liquid-metal micro acceleration switches have attracted researcher’s attentions increasingly. To investigate the flow characteristics of mercury droplet in micro acceleration switch, this paper establishes numerical models of micro acce

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5

Luo, Yuehao, Robert Smith, and Lork Green. "Exploring instantaneous micro-imprinting technology on semi-cured epoxy resin coating based on relationship between forming precision and curing degree." Chemical Industry and Chemical Engineering Quarterly 22, no. 1 (2016): 47–53. http://dx.doi.org/10.2298/ciceq150119018l.

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Nano/micro-imprinting technology base on polymer material coating has attracted the increasing attentions throughout the world in the past several decades, and it is progressively developing into the hot topic at present, in which, how to improve the manufacturing efficiency is becoming the urgent issue to be resolved. Polymer?s curing process is exactly complicated and sophisticated, which involves simultaneously performing physical and chemical changes, when the curing reaction reaches certain level, the system will abruptly transform into insoluble, non-melting gel with rapidly increased vi

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6

Keighobadi, J., J. Faraji, and S. Rafatnia. "Chaos Control of Atomic Force Microscope System Using Nonlinear Model Predictive Control." Journal of Mechanics 33, no. 3 (2016): 405–15. http://dx.doi.org/10.1017/jmech.2016.89.

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AbstractOwing to robust and optimal specification, model predictive control method has received wide attentions over recent years. Since in certain operational conditions, an Atomic/scanning Force Microscope (AFM) shows chaos behavior, the chaos feedback control of the AFM system is considered. According to the nonlinear model of forces interacting between the tip of micro cantilever and the substrate of AFM; the nonlinear control methods are proposed. In the paper, the chaos control of a micro cantilever AFM based on the nonlinear model predictive control (NMPC) technique is presented. Throug

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7

Luo, Liang, Zheng Yi Jiang, Dong Bin Wei, Hideki Sato, Tsuyoshi Furushima, and Ken-Ichi Manabe. "A Numerical Study of Micro Hydro Deep Drawing of SUS304 Sheets." Applied Mechanics and Materials 846 (July 2016): 524–29. http://dx.doi.org/10.4028/www.scientific.net/amm.846.524.

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Micro forming is a promising technology and has drawn global attentions due to the urgent requirements on miniaturised products. Micro hydro deep drawing (MHDD) is a typical micro forming method and its products are widely applied in various fields, such as micro electro-mechanical systems (MEMS), medical and aerospace areas. However, tiny sizes of both products and tools are obstacles to investigate this novel technology. Therefore, finite element method (FEM) is adopted and modified to study the influence of processing parameters on micro drawing process and produced products. In this study,

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8

Wang, Jingjing, Baozheng Xu, Yinfang Zhu, and Junyuan Zhao. "Microcantilever sensors for biochemical detection." Journal of Semiconductors 44, no. 2 (2023): 023105. http://dx.doi.org/10.1088/1674-4926/44/2/023105.

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Abstract Microcantilever is one of the most popular miniaturized structures in micro-electromechanical systems (MEMS). Sensors based on microcantilever are ideal for biochemical detection, since they have high sensitivity, high throughput, good specification, fast response, thus have attracted extensive attentions. A number of devices that are based on static deflections or shifts of resonant frequency of the cantilevers responding to analyte attachment have been demonstrated. This review comprehensively presents state of art of microcantilever sensors working in gaseous and aqueous environmen

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9

Liu, Zhong-Peng, Si-Nan Song, and Mu Zhang. "Facile Fabrication of Fluorine-Free Superhydrophobic Surfaces with SiO2 Monospheres." Journal of Nanoelectronics and Optoelectronics 16, no. 2 (2021): 208–12. http://dx.doi.org/10.1166/jno.2021.2934.

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Recently, superhydrophobic surface on various type of substrates have attracted much attentions in electronics field. In this work, the classic Stöber method was used to prepare spherical silica particles with different particle sizes by adding different amounts of electrolyte (potassium chloride), giving rise to size distribution ranging from 300 nm to 2.55 yitm. Herein we constructed a micro-nano lotus-like structure in a facile way, achieving a superhydrophobic surface with using any Fluorine related chemicals. In the sense, the silica particles modified with HMDS were sprayed to prepare hy

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10

Xu, Yanping, and Xiaoyi Bao. "Micro-structured fibers and their applications in fiber-optic sensors and random fiber lasers." Canadian Journal of Physics 96, no. 4 (2018): 359–65. http://dx.doi.org/10.1139/cjp-2017-0304.

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Micro-structured fibers are important devices that have drawn intensive attentions and proved to be powerful platforms for various applications over the past decades due to their remarkable merits and advantages, such as small footprint, immunity to electromagnetic interferences, light weight, high physical flexibility, and low cost. Modifications in optical fibers can be used as light-steering elements to excite and couple back different core and cladding modes and form various in-fiber structures, including in-line fiber interferometer, fiber micro-cantilever, fiber random gratings, and so o

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11

Yang, Wenqing, Liguang Wang, and Bifeng Song. "Dove: A biomimetic flapping-wing micro air vehicle." International Journal of Micro Air Vehicles 10, no. 1 (2017): 70–84. http://dx.doi.org/10.1177/1756829317734837.

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This paper describes the design and development of the Dove, a flapping-wing micro air vehicle (FWMAV), which was developed in Northwestern Polytechnical University. FWMAVs have attracted international attentions since the past two decades. Since some achievements have been obtained, such as the capability of supporting an air vehicle to fly, our research goal was to design an FWMAV that has the ability to accomplish a task. Main investigations were presented in this paper, including the flexible wing design, the flapping mechanism design, and the on-board avionics development. The current Dov

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12

Zhang, Xiao Quan, and L. Tian. "Three-Dimensional Simulation of Micro Air Vehicles with Low-Aspect-Ratio Wings." Key Engineering Materials 339 (May 2007): 377–81. http://dx.doi.org/10.4028/www.scientific.net/kem.339.377.

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Micro Air Vehicles (MAVs) are catching more and more attentions for their broad application in civilian and military fields. Since the theories on the aerodynamics of low Reynolds number are not maturely presented and the wind-tunnel experiments cost long periods and great expenses. The numerical simulation based on computational fluid dynamics (CFD) is a good method to choose. Through three-dimensional simulation of the wings, the aerodynamic characteristics of the flows around MAVs can be easily obtained. The tip vortices produced around low-Reynolds-number and low-aspect-ratio wings can inc

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13

Qiao, Ling, Tao Han, Hong Tao Wang, Lai Hui Han, and Shi Wei Gu. "Microscopic Study on Mechanical Properties of Different Microregions during In-Service Welding." Materials Science Forum 944 (January 2019): 841–53. http://dx.doi.org/10.4028/www.scientific.net/msf.944.841.

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In-service welding has been gaining considerable attentions due to its significant economic benefits. At high temperature, several technical difficulties exist during repair process and burn-through has been one of the critical issues. To reveal the physical nature of burn-through, finite element simulation and molecular dynamics simulation are combined to investigate the micro dynamic properties of different micro regions in welded joint and the effect of crack on the microdynamic behavior in the process of material failure. The results indicate that burn-through is a failure process under th

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14

Chen, Kan, Pei Dong Zhu, and Yue Shan Xiong. "Measuring the Use of Real-Name Policy in Micro-Blogging of China." Applied Mechanics and Materials 519-520 (February 2014): 257–61. http://dx.doi.org/10.4028/www.scientific.net/amm.519-520.257.

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Real-name policy has been adopted in some specific fields of China for several years. As the leading micro-blogging service of China, Weibo has introduced the real name policy in 2012. However, the question is that how the real-name policy is used is still unknown. In this paper, with a dataset of 158,979 accounts crawled from Weibo, we conduct a deep measurement and analysis on the use of real-name policy. We find that although the rule has been promoted for several years, the proportion of verified users is still small. Our work also shows that famous people tend to use their real names to g

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15

Zhang, Ruihan, Qiang Lu, and Hanqing Zhao. "The learnable CPG model based on Wilson-Cowan oscillator." Journal of Physics: Conference Series 2632, no. 1 (2023): 012003. http://dx.doi.org/10.1088/1742-6596/2632/1/012003.

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Abstract The central pattern generator (CPG) is a micro circuit in neural system and it can generate rhythmic signals to regulate locomotion. The researchers have investigated the features of the CPG, and they have paid more attentions to the the programmable characteristic. In this address, a new learnable CPG based on Wilson-Cowan oscillator is established. The sine signal, the complex signal, the chaotic signal and angles of compass-like robot are used as input to test the new programmable central pattern generator. The simulations present that the learnable CPG has the ability to learn dif

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16

Kang, Chun Mao, Jin Yan Ji, Jun Li Zhao, et al. "Facile Fabrication of Super-Hydrophobic Surface on Aluminum and its Effects in Accelerating Underwater Bubble Bursting." Materials Science Forum 789 (April 2014): 154–56. http://dx.doi.org/10.4028/www.scientific.net/msf.789.154.

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Facile fabrication of bio-mimic super-hydrophobic surfaces has attracted attentions in both fundamental research and practical application. In this article, we developed a simple one step etching method to fabricate a super-hydrophobic surface on aluminum surface. The contact angel of water reaches 155.9° without coating any low energy materials. Surface morphology clearly demonstrates a combination of micro/nanohierarchical structures. Moreover, such surface remarkably shortens the bursting time of air bubbles under water. For a middle size bubble about 1mm, the bursting time at super-hydroph

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17

Yan, Ting Ting, Si Yu Wu, Qing Hua Chen, Qing Mei Liu, and Jia Rong Yang. "A Novel Biodegradable Phosphate Coating on AZ31B Alloy." Applied Mechanics and Materials 707 (December 2014): 158–62. http://dx.doi.org/10.4028/www.scientific.net/amm.707.158.

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Mg and its alloys draw more and more attentions to be used as biodegradable medical materials. But the rapid degradation of those materials limits their clinical applications. In this article, a phosphate coating was prepared on AZ31B magnesium alloy to improve its anti-corrosion property. Morphology, composition and corrosion resistance of the coating were studied. The SEM research showed that the coating that composed of rod-like phosphates with small amount of random distributed micro-voids was approximately10-20μm in thickness. The XRD analysis indicated that the coating was mainly compose

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18

Li, Xiao Peng, Hui Fan Nie, Zhi Jie Zhao, and Gui Qiu Song. "Review and Prospect of the Research of Vibration and Friction Mechanism of Machine Joint Surfaces." Applied Mechanics and Materials 121-126 (October 2011): 3487–92. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3487.

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The machine joint surfaces are necessary to form the functions of the complex mechanical system. Because the macro or micro relative motions may appear in the machine joint surfaces, the vibration and friction phenomena will be excited, then the singularities, disturbances and faults of the mechanical system may be appeared when the machine equipments in the running process. These undesired phenomena will have adverse effect on the efficiency, precision, reliability and lifetime of the mechanical equipment. In order to ensure the functions and properties of the mechanical system, more attentio

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19

Shao, Zhen Wei, Zi Wei Xu, Xiu Yun Zhang, Gui Wu Liu, Hao Hua Li, and Guan Jun Qiao. "Formation Mechanisms of the Point Defects from the 4H-SiC (0001) Surface to the Interior Layers: First Principle Calculation." Key Engineering Materials 697 (July 2016): 771–76. http://dx.doi.org/10.4028/www.scientific.net/kem.697.771.

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With the extended applications of hexagonal silicon carbide (h-SiC) in the various fields, particularly in the application of the electronic devices, more and more attentions have been focused on the micro structures as well as their physical properties of h-SiC surface. In this study, we have performed the first principal calculations to compare the formation energies of four typical defects (Vc, Vsi, CI and SiI) on the 4H-SiC (0001) surface as well as in the interior layers. Due to the surface reconstruction and the reduced lattice constrain, the optimized structures of the defects on/near t

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20

Han, Liang, Jing Song Jin, and Wei Zhang. "A Conceptual Design of a Measuring System of Tennis Batting Motion Attitude Based on MEMS Sensors." Applied Mechanics and Materials 198-199 (September 2012): 1053–56. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.1053.

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Tennis is a very elegant sport, with a strong sense of competitiveness and appreciation, which has gained more and more attentions in our country, and it tends to be a fashion. This project is to achieve the measurement of tennis batting motion attitude in three dimensional space using a combination of the three-axis MEMS(Micro-electromechanical Systems) sensors, and make research on the principle of measurement system, composition and data acquisition. Body posture measurement system is to measure the attitude measurement in human movement, it can be applied to study the movement posture or t

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21

Wu, Chang Fu. "Analysis and Realization of Critical Points on Hardware Design of FPGA." Advanced Materials Research 950 (June 2014): 133–38. http://dx.doi.org/10.4028/www.scientific.net/amr.950.133.

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FPGA is one kind of important devices that can realize many functions. As the development of communication technology and computer science, more and more technologies are invented and more and more hardware design technologies are sifted out. Therefore, the hardware design based on ASIC can be not fit on the new theories realization. As a new device, FPGA has many advantages including strength function, shorter design circle, less money, more flexible and more intelligent design tools. More and More hardware designs of FPGA are pay more attentions. Therefore, it is significant to make analysis

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22

Xie, Xiaofan, Yunfei Li, Gong Wang, et al. "Femtosecond Laser Processing Technology for Anti-Reflection Surfaces of Hard Materials." Micromachines 13, no. 7 (2022): 1084. http://dx.doi.org/10.3390/mi13071084.

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The anti-reflection properties of hard material surfaces are of great significance in the fields of infrared imaging, optoelectronic devices, and aerospace. Femtosecond laser processing has drawn a lot of attentions in the field of optics as an innovative, efficient, and green micro-nano processing method. The anti-reflection surface prepared on hard materials by femtosecond laser processing technology has good anti-reflection properties under a broad spectrum with all angles, effectively suppresses reflection, and improves light transmittance/absorption. In this review, the recent advances on

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23

Sheikh, Irfan Ahmed. "Prospects for Interest-Free Micro Finance in India: An Empirical Study." Journal of Islamic Economic and Business Research 1, no. 1 (2021): 15–39. http://dx.doi.org/10.18196/jiebr.v1i1.11578.

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Despite the growth of Islamic banking and finance, in recent times due attention were given to the issue of Islamic microfinance. It is so because, as per various estimates over two billion people across globe are still living in a miserable poverty which is a global challenge and India not being an exception. Since the Poverty remains, a continuous challenge throughout the human history so as the efforts to overcome poverty. Among various efforts a conventional micro finance a “new model” received global recognition and a hope. But even if successful stories in bringing development and eradic

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24

Zhou, Xiang Ming, Reza Madanipour, and Seyed Ghaffar. "Impact Properties of Hemp Fibre Reinforced Cementitious Composites." Key Engineering Materials 711 (September 2016): 163–70. http://dx.doi.org/10.4028/www.scientific.net/kem.711.163.

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The construction industry has seen an incredibly fast increase in utilizing natural fibres for making low-cost building materials to achieve sustainable construction. One of such applications is natural fibre-reinforced cementitious materials for either structural or non-structural purpose. Impact properties are engineering properties received increasing attentions from engineering community for structural materials. This research therefore studies impact resistance of hemp fibre reinforced cementitious composites at early ages. Hemp fibre with various lengths, 10 mm and 20 mm, are utilized to

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25

Guo, Lei, Guang Li, and Zhilin Gan. "Effects of surface roughness on CMAS corrosion behavior for thermal barrier coating applications." Journal of Advanced Ceramics 10, no. 3 (2021): 472–81. http://dx.doi.org/10.1007/s40145-020-0449-7.

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AbstractCalcium-magnesium-alumina-silicate (CMAS) corrosion is an important cause for thermal barrier coating (TBC) failure, which has attracted increased attentions. In this study, some thermal barrier coating (TBC) materials including YSZ (yttria partially stabilized zirconia), GdPO4, and LaPO4 were prepared into bulks, and the effects of their surface roughness on wettability and spreading characteristics of molten CMAS were investigated. As-fabricated and polished bulks with different surface roughness were exposed to CMAS corrosion at 1250 °C for 1 and 4 h, following by macro and micro ob

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26

Fukuda, Toshio, and Hidemi Hosokai. "Special Issue on Micro-Machine." Journal of Robotics and Mechatronics 3, no. 1 (1991): 1. http://dx.doi.org/10.20965/jrm.1991.p0001.

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Much attention has been paid to the micronization of machine systems founded on the silicon-based semiconductor technology which are greatly different imagewise from the conventional machines. As a result, studies are being actively carried out on micro-machines. In addition, studies on extremely micro actuators and sensors based on the conventional precision processing techniques are also being conducted. These techniques have begun to support studies and developments of micro-robots which are based on new concepts of machine systems. The following techniques may be contained in the basic tec

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27

Khan, Akhtar, and Kalipada Maity. "Parametric Optimization of Some Non-Conventional Machining Processes Using MOORA Method." International Journal of Engineering Research in Africa 20 (October 2015): 19–40. http://dx.doi.org/10.4028/www.scientific.net/jera.20.19.

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Non-conventional manufacturing techniques are most widely used in industries in order to achieve high accuracy and desirable product quality. Therefore, the selection of an appropriate machining parameter has become a crucial job before starting the operation. Several optimization methods are available to resolve the upstairs situation. The current study explores a novel technique namely multi-objective optimization on the basis of ratio analysis (MOORA) to solve different multi-objective problems that are encountered in the real-time manufacturing industries. This study focuses on the applica

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28

Zhang, Huiling, Ruping Liu, Huiqing Zhao, et al. "Research Progress of Biomimetic Memristor Flexible Synapse." Coatings 12, no. 1 (2021): 21. http://dx.doi.org/10.3390/coatings12010021.

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With the development of the Internet of things, artificial intelligence, and wearable devices, massive amounts of data are generated and need to be processed. High standards are required to store and analyze this information. In the face of the explosive growth of information, the memory used in data storage and processing faces great challenges. Among many types of memories, memristors have received extensive attentions due to their low energy consumption, strong tolerance, simple structure, and strong miniaturization. However, they still face many problems, especially in the application of a

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29

Hu, Yusheng, Ziyun Yu, Genlian Fan, et al. "Simultaneous enhancement of strength and ductility with nano dispersoids in nano and ultrafine grain metals: a brief review." REVIEWS ON ADVANCED MATERIALS SCIENCE 59, no. 1 (2020): 352–60. http://dx.doi.org/10.1515/rams-2020-0028.

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AbstractGrain refinement is the most universal and effective method of strengthening metallic materials, which is known as the “Hall-Petch” relationship. However, when grain size is refined to sub-micro regime (Ultrafine Grain, UFG) or even nano regime (Nano Grain, NG), the plasticity of metallic materials becomes poor. Massive studies indicate that the low strain hardening ability resulted from the enhanced dynamic recovery and lack of dislocation accumulation in fine grains is the main reason for low ductility in UFG/NG metals. To resolve this “strength-ductility” conflict, different strateg

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30

Zemedu, Chaluma, and Wubshet Ibrahim. "Analysis of Non-Linear on the House Convection Stream of Couple Stress Micro-Polar Nano-Fluids Past Vertical Cone with Non-Fourier’s Heat and Non-Fick’s Mass Fluxes." Journal of Nanofluids 12, no. 4 (2023): 919–29. http://dx.doi.org/10.1166/jon.2023.1938.

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The main goal of this study is to analyze the effects of different governing parameters such as buoyancy forces, and thermal relaxation time parameter in non-linear convection flow on the combined two fluids couple stress and micro-polar nano-fluid over a vertical cone with non-isothermal surface with heat and mass transfer with non-Fourier’s heat and non-Fick’s Mass fluxes numerically. The mathematical modeling for the stream difficulty has been made with fitting similarity transformation by non-dimension variable. Major non-linear boundary value difficulties were hooked on combined high regu

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31

Lanquetin, J. P., and S. Tchukriel. "L’impact de l’informel dans le travail infirmier en psychiatrie." European Psychiatry 29, S3 (2014): 646. http://dx.doi.org/10.1016/j.eurpsy.2014.09.010.

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Cette recherche en soins vise à identifier, nommer, qualifier et surtout caractériser les fonctions de l’informel dans le soin infirmier en psychiatrie, particulièrement dans l’écart entre soins programmés et soins non programmés. Il s’agit alors d’objectiver les savoirs faire mobilisés, mais aussi leurs impacts et leurs spécificités. Les objectifs de cette recherche en soins infirmiers (RSI) sont mobilisés sur trois niveaux d’investigations : en direction du patient, du professionnel et de l’équipe.Cette recherche multicentrique a connu sa phase d’enquêtes de terrain auprès d’équipes de soins

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Jawad, Muhammad. "Insinuation of Arrhenius Energy and Solar Radiation on Electrical Conducting Williamson Nano Fluids Flow with Swimming Microorganism: Completion of Buongiorno's Model." East European Journal of Physics, no. 1 (March 2, 2023): 135–45. http://dx.doi.org/10.26565/2312-4334-2023-1-17.

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The enriched thermal mechanisms and progressive of nanomaterial has enthused scientists to give devotion to this area in current days. The versatile and synthesizing utilization of such particles embrace energy production, solar systems, heating and cooling monitoring processes, renewable energy systems, cancer treatments, hybrid-powered motors and Nano electronics. Furthermore, in this era of biotechnology and bioengineering, the bio convection of Nano fluids provides for some enthralling applications, such as enzymes, biosensors and biofuels. With such magnetic applications and attentions. A

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33

Liu, Shuyang, Baojiang Sun, Jianchun Xu, Hangyu Li, and Xiaopu Wang. "Study on Competitive Adsorption and Displacing Properties of CO2 Enhanced Shale Gas Recovery: Advances and Challenges." Geofluids 2020 (December 23, 2020): 1–15. http://dx.doi.org/10.1155/2020/6657995.

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CO2 enhanced shale gas recovery (CO2-ESGR) draws worldwide attentions in recent years with having significant environmental benefit of CO2 geological storage and economic benefit of shale gas production. This paper is aimed at reviewing the state of experiment and model studies on gas adsorption, competitive adsorption of CO2/CH4, and displacement of CO2-CH4 in shale in the process of CO2-ESGR and pointing out the related challenges and opportunities. Gas adsorption mechanism in shale, influencing factors (organic matter content, kerogen type, thermal maturity, inorganic compositions, moisture

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34

Pebrianti, Dwi, Wong Jack Kee, Luhur Bayuaji, and Achmad Solichin. "Navigating Urban Skies: Obstacle Avoidance Strategies for Quadrotor MAVs." Journal of Physics: Conference Series 2866, no. 1 (2024): 012039. http://dx.doi.org/10.1088/1742-6596/2866/1/012039.

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Abstract Micro Aerial Vehicles (MAVs) has gained attentions since more than two decades ago starting from the applications in air combat up to civil applications such as packet deliveries, environmental monitoring, and surveillance. In an environment such as cities that grows denser, navigation and control for drones becomes challenging to ensure safe navigation around buildings and other obstacles. This study proposes an approach for obstacle avoidance for MAVs by using ultrasonic sensors. Four sensors are strategically positioned to cover the front, right, back, and left directions. Addition

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35

Wang, Yuedan, Rong Yan, Quanwei Shi, et al. "Effects of microgravity and hypergravity on platelet functions." Thrombosis and Haemostasis 101, no. 05 (2009): 902–10. http://dx.doi.org/10.1160/th08-11-0750.

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SummaryMany serious thrombotic and haemorrhagic diseases or fatalities have been documented in human being exposed to micro-gravity or hypergravity environments, such as crewmen in space, roller coaster riders, and aircrew subjected to high-G training. Some possible related organs have been examined to explore the mechanisms underlying these gravity change-related diseases. However, the role of platelets which are the primary players in both thrombosis and haemostasis is unknown. Here we show that platelet aggregation induced by ristocetin or collagen and platelet adhesion to von Willebrand fa

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Tao, Zhi, Weidong Fang, Haiwang Li, et al. "Hydrophobicity induced drag reduction: Perspectives from the slip length." Journal of Applied Physics 133, no. 5 (2023): 054701. http://dx.doi.org/10.1063/5.0141310.

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Hydrophobicity has been developed in many areas, whose potentials in drag reduction at microscale have attracted numerous attentions for expanding the practical applications in fields of on chip devices, materials synthesis, and enhanced heat transfer. In this article, we select polydimethylsiloxane (PDMS) as the base material, whose hydrophobic modifications have been well developed. Among them, hydrofluoric acid treated one shows great performance and leads us to two types of microchannels, the straight and U-shaped, with enhanced hydrophobicity (from 91° to 106°). The coefficients of the pr

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Adenuga, AH, OA Omotesho, RO Babatunde, DP Popoola, and G. Opeyemi. "Effect of Fadama III programme on poverty status of rice farming households in Patigi local government area of Kwara state, Nigeria." Journal of Agriculture, Forestry and the Social Sciences 11, no. 2 (2015): 80–91. http://dx.doi.org/10.4314/joafss.v11i2.8.

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Concern about the menace posed by poverty has led the Nigerian government over the years to devote considerable attentions to alleviating its scourge through various aids and programmes. However, little is known as to the extent to which the objectives of these programmes have been achieved. This study was therefore carried out to examine the micro level effect of the National Fadama III Programme on poverty status of rice farming households in Patigi Local Government Area of Kwara State, Nigeria. A purposive- two stage random sampling technique was used to select 60 beneficiaries and 60 non-b

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Deng, Jie, Zhu Peng, Zhe Xiao, Shuang Song, Hui Dai, and Luming Li. "Porous Doped Carbons from Anthracite for High-Performance Supercapacitors." Applied Sciences 10, no. 3 (2020): 1081. http://dx.doi.org/10.3390/app10031081.

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Carbon-based materials, as some of the most important electrode materials for supercapacitors (SC), have spurred enormous attentions. Now, it is highly desirable but remains an open challenge to design stable and high-capacity carbons for further enhancing supercapacitive function. Here, a facile chemical activation recipe is introduced to develop biomass-derived functional carbons using cheap and abundant natural resources, anthracite, as the heteroatom-rich carbon sources, and potassium hydroxide (KOH) as activator. These porous carbons have high BET surface areas of roughly 2814 m2 g−1, lar

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Semez, Gianfranco, Carmen Todea, Daliana Mocuta, Ioana Tuta Sas, and Ruxandra Luca. "Chemical and Morphologic Analysis of Titanium Dental Implants: X-ray Photoemission Techniques (XPS) and Scanning Electron Microscopy (SEM) with EDX Analysis." Revista de Chimie 69, no. 2 (2018): 474–77. http://dx.doi.org/10.37358/rc.18.2.6130.

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Nowadays the implants rehabilitations are used deeply by clinicians. The importance to technological improvement is working to find the best surface of the fixture to obtain a good and stable osteointegration. By the use of the Energy Dispersive X-ray (EDX) analysis and the X-ray Photoemission Spectroscopy (XPS) evaluate the surface quality of commercial implants. The XPS analysis was made to evaluate the chemical elements that compose the material surface of the implant and determine the state of atomical connections. The EDX analysis was performed to evaluate the characteristic qualitative a

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Citton, Yves. "Automatic Endo-Attention, Creative ExoAttention: the Egocidal and Ecocidal Logic of Neoliberal Capitalism." New Formations 98, no. 98 (2019): 101–18. http://dx.doi.org/10.3898/newf:98.07.2019.

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The beginning of the twenty-first century could be characterised by the externalisation of attention, following the externalisation of our other faculties: the term 'exo-attention' can be used to refer to the increasing number of electrical devices performing attentional tasks for us outside of our bodies. At the same time, the logic of industrial production continues to demand human beings to develop automated gestures commanded by the planetary assembly line, intellectual gestures being now added to bodily gestures. This automation of our 'endo-attention' cannot be considered as a temporary

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Okura, Shoma, Hao Pan, Yasuhiro Okamoto, Akira Okada, Yoshihiro Sakino, and Tomoharu Kato. "Fundamental Study on Influence of Residual Stress Distribution on Fatigue Strength in ns Pulsed Laser Peening for Welded High-Strength Steel." Defect and Diffusion Forum 441 (March 26, 2025): 61–68. https://doi.org/10.4028/p-ii6dii.

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Due to the recent increase in energy consumption, global environmental issues have attracted attentions in order to continue the sustainable development of society [1]. Currently, scrap-and-build becomes a mainstream in the field of constructions, which would use and /or dispose a large amount of materials. This situation results in massive energy consumption with a significant environmental impact [2]. Therefore, it is important to consider sustainable systems in the construction industry. In many countries, a lot of structures had been constructed during the period of rapid economic growth i

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Umaru, Isaac John, Iseko Iyoko Kingsly, Edom Favour Ogochukwu, et al. "Anticancer effect of Copper Activated Plasma Water on MCF7 Breast Cancer Cells." African Journal of Clinical Medicine and Pharmacy Research 2, no. 1 (2025): 86–117. https://doi.org/10.58578/ajcmpr.v2i1.4721.

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Broad biological activities of “plasma-activated water” (PAW) have drawn great attentions recently. Treatment of water using gas discharge plasma led to acidic solutions with excellent and broad antibacterial activity. Because PAW caused severe membrane damages in bacteria and diffused freely in extracellular matrix, PAW also demonstrated good anti-biofilm activity. However, further studies revealed that trace amounts of metal ions (mainly copper) in PAW brought by plasma treatment played key roles in bacteria inactivation. The contribution of metal ions to the antibacterial activity varied am

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Li, Bin. "Unlocking Failure Mechanisms and Improvement of Practical Li-S Pouch Cells through in Operando Pressure Study." ECS Meeting Abstracts MA2022-01, no. 1 (2022): 109. http://dx.doi.org/10.1149/ma2022-011109mtgabs.

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Lithium-sulfur (Li-S) batteries have been considered a promising candidate for next-generation high-energy density storage technology due to their low cost and high theoretical capacity. However, since 2017, more and more attentions have been paid to the gap of lab cell characterization (coin cell) and prototype cell (pouch cell) development since misinterpretations and false expectations are frequently reported: material property impacts are often over-interpreted, while parameters with indirect impact (e.g., electrode and separator porosity, tortuosity, and pressure on cell stack) are neglec

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Yang, Bing, Jing Cheng, Yunxiang Yang, Bo Zhang, and Jianxin Li. "MERTA: micro-expression recognition with ternary attentions." Multimedia Tools and Applications, June 24, 2019. http://dx.doi.org/10.1007/s11042-019-07896-4.

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Jiang, Mingming, Kai Tang, Peng Wan, Tong Xu, Haiying Xu, and Caixia Kan. "Single microwire near-infrared exciton-polariton light-emitting diode." Nanoscale, 2020. http://dx.doi.org/10.1039/d0nr07305a.

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Exciton-polaritons, which inherited from the strong coupling between photon modes of microresonators and excitons in semiconductor micro-/nanostructures, have drawn observably attentions due to their essential significance for fabricating coherent light...

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Xu, Haiying, Juan Xu, Mingming Jiang, et al. "Exciton-polariton light-emitting diode based on single ZnO super- lattice microwire heterojunction with performance enhanced by Rh nanostructures." Physical Chemistry Chemical Physics, 2023. http://dx.doi.org/10.1039/d2cp05446a.

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One-dimensional (1D) wirelike superlattice micro/nanostructures have caused considerable attentions for potential applications due to their versatility and capability of modulating optical and electrical characteristics. In this study, 1D superlattice microwires...

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Song, Yuhui, Yifei Cao, Sichen Huang, et al. "Plasmon-induced nonlinear response on gold nanoclusters." Chinese Physics B, January 4, 2024. http://dx.doi.org/10.1088/1674-1056/ad1a8b.

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Abstract Plasmon-induced nonlinear response has attracted great attentions in micro-nano optics and optoelectronics applications, yet the underlying microscopic mechanism remains elusive. In this study, the nonlinear response of gold nanoclusters when exposed to femtosecond laser pulse was investigated using time-dependent density functional theory (TDDFT). It was observed that the third-order tunneling current was augmented in plasmonic dimers, owing to a greater number of electrons in the dimer being excited from occupied to unoccupied states. These findings provide profound theoretical insi

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Cao, Jinchen, Leilei Li, and Cheng Zhang. "The coalescence of Cu nanoparticles with different interfacial lattice structures: A molecular dynamics study." Modern Physics Letters B, December 30, 2020, 2150149. http://dx.doi.org/10.1142/s0217984921501499.

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With the popularization of 3D printing technology, micro/nanoparticles sintering technology has drawn lots of attentions all over the world. Here, molecular dynamic simulation is employed to discuss the effects of different interfacial lattice structures, different diameter of nanoparticles, and different heating rates on the coalescence of metallic Cu nanoparticles. The results showed that the diameter of nanoparticles determine the melting point of the system. Besides, the interfacial lattice structure, diameter of nanoparticles, and heating rate have an influence on the initial sintering te

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Feng, Yuming, Junkao Liu, Jie Deng, Zhang Shijing, and Yingxiang Liu. "A review on droplet-based 3D printing with piezoelectric micro-jet device." Smart Materials and Structures, May 16, 2024. http://dx.doi.org/10.1088/1361-665x/ad4cac.

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Abstract The droplet-based 3D printing with piezoelectric micro-jet device (PMJD), also known as fabrication with droplet ejection, has shown its unique advantages exceeding typical processing in direct rapid manufacturing (DRM) of miniature and complicated metal parts, function components, and other heterogeneous devices. Recently, the droplet-based 3D printing with higher printing velocity, controllable precision and smaller printing volume is need more and more in additive manufacturing (AM) fields, which promotes the development of the droplet-based printing technology to a faster, accurat

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Zhu, Yichen, and Jinjun Wang. "Experimental investigation on flow structures of steadily translating low-aspect-ratio wings in low Reynolds number flow." 14th International Symposium on Particle Image Velocimetry 1, no. 1 (2021). http://dx.doi.org/10.18409/ispiv.v1i1.109.

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In recent decades, Micro Air Vehicles (MAVs) have been a hot topic for their promising future. But the promotions of MAVs are hindered by their short endurances. To solve this problem, inspirations are brought from migratory butterflies who utilize the ‘flapping-gliding’ skill during long-distance migration to improve the flight efficiency. The butterfly’s gliding flights, which can be simplified by considering the steadily translating fixed wings, have drawn high attentions. Previous studies mainly focus on the aerodynamics of the low-aspect-ratio fixed wings at Re ≈ 105 via force measurement

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