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Discriminative Minimum Statistics Projection Coefficient Feature for Acoustic Context Recognition Deng Shi-Wen1,2, a, Zhang Chao-Zhu1,b and Wang Chao2,c 1College of Information and Communication Engineering, Harbin Engineering University, China 2School of Mathematical Sciences, Harbin Normal University, China adengswen@gmail.com, bzhangchaozhu@hrbeu.edu.cn, cwangchao514@126.com Keywords: Acoustic environment recognition (AER), background sound, audio context, context-aware, partial least squares analysis Abstract.
The environmental sounds used for the material are collected from freesound.org [18].
Cai: A flexible framework for key audio effects detection and auditory context inference, IEEE Trans.

Experimental Study on Softening Treatment of Weak Acid Hydrogen Type Resin to Viscous Oil Sewage Xiao Ge1,a, Ying Xu2,b,Bin Dong3,c,Zuwen Liu4,d 1,4School of Resource and Environmental Engineering, University of Jiangxi for Science and Technology,Ganzhou 341000,PR China 2School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, PR China 3School of Environmental Science and Engineering,Tongji University,Shanghai 200092,PR China agwdagx50534@126.com,b787332991@qq.com, ctj_dongbin@163.com dliu_zwfm@sohu.com Keywords: weak acid resin; hydrogen type; softening; viscous oil sewage Abstract:This essay presents an experimental study about softening effect of weak acid hydrogen type resin on viscous oil sewage of an oil production plant through ion exchange technique, and the test results show that: when the first level of ion exchange column adopts weak acid hydrogen type resin and the second level adopts weak acid sodium type resin,
Within the ion exchange method, it is a key to choose proper resin; research shows that large-pore type weak acid cation resin has strong capacity to absorb Ca2+ and Mg2+ from viscous oil sewage, with high absorption capacity and thorough absorption[7,8].
Water quality index and test apparatus 1.1 Water quality index Table 1 is the water quality index of the effluent of viscous oil sewage reuse treatment process of an oil production plant; the second-level filtration effluent is generated from the viscous oil sewage through sedimentation and air floatation and then through a double-filter material filter and a multi-media filter in sequence, wherein the alkalinity is above 10 times higher than hardness, so as to be the typical “negative hard water”.

Specifically, the first key scandal involved Ford (2000–2001), where several accidents reported due to faulty tires resulted in 103 deaths; hence 14.4 million tires were recalled [61, 62].
The normative pressure arises from customers demanding ecologically sustainable vehicles and being willing to pay extra to get renewable materials in their cars [61, 67].  
Literature Review The automobile manufacturing industry is a key industrial and economic force worldwide, which confronts strict emission regulations [27, 42].
Likewise, green technology is related to production technology, such as cleanups for reducing pollution and the materials used to produce environmentally friendly cars [26].
Research in Engineering Design. 29 (2018) 39-53

Wijaya3,d 1Department of Mechanical Engineering and Industrial, Universitas Teuku Umar, Aceh, Indonesia 2Department of Mechanical Engineering and Industrial, Universitas Syiah Kuala, Aceh, Indonesia 3Master program for Computer Science, Faculty of Mathematics and Natural Science, Universitas Gajah Mada, Yogyakarta, Indonesia airwansyah@utu.ac.id, bRizkiagamsyahputra@utu.ac.id, cfaridjayadi@utu.ac.id, radenwijaya@ut.ac.id Keywords: Agriculture, Unmanned Aerial Vehicles, Monitoring System.
The design process is methodically delineated, encompassing estimations, calculations, material selection, conceptual designs, and VTOL UAV prototype testing.
PID Control Proportional-Integral-Derivative (PID) control is a key technique for stabilizing UAVs [10].
To optimize aerodynamic performance in horizontal flight, the central hub can be clad with lightweight materials specifically engineered to enhance lift and reduce drag.
In: Futuristic trends in agriculture engineering & food sciences, vol. 3B.

Dye Sensitized Solar Cells based on ZnO Nanorod/TiO2 Nanoparticle Composite Films Hui Tong1,a, Miki Inada2,b, Yumi Tanaka2,c, Naoya Enomoto2,d and Junichi Hojo2,e 1Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan 2Department of Applied Chemistry, Faculty of Engineering, Kyushu University, Fukuoka 819-0395, Japan a huitong@kyudai.jp, b inada@cstf.kyushu-u.ac.jp, c yutanaka@cstf.kyushu-u.ac.jp, d enomoto@cstf.kyushu-u.ac.jp, eCorresponding author, email: jhojo@cstf.kyushu-u.ac.jp.
Key words: ZnO, TiO2, Composite film, Dye sensitized solar cell, Sol-gel method Abstract ZnO nanorod/TiO2 nanoparticle composite films were prepared by a sol-gel method, in which the slurry of TiO2 nanoparticles (NPs) were penetrated into ZnO nanorod arrays.
Among the various approaches adopted for improving DSSCs, one structural design for the photoelectrode material, typically consisting of semiconductor oxide made of TiO2 NPs coated with a monolayer of sensitizer, has been extensively investigated [3].

Schmidt3 1 School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, China 2 China Association for Peaceful Use of Military Industry & Technology, China 3 Institut für Produktionstechnik (wbk), Universität Karlsruhe(TH), Germany a rita_xie@bit.edu.cn Key words: Tool wear, "Differential" wear rate model, Finite element method, Milling operation Abstract.
Usui's characteristic equation of adhesive wear, wear rate is dependent on temperature at tool face, normal stress and relative sliding velocity at tool/chip and tool/work interface, as shown in eq. 1 )exp( ffsCvw θλσ − =& (1) where w& is wear rate, i.e. the wear volume per unit area and unit time; sv is the relative sliding velocity of workpiece material on the tool face, fσ the normal stress, fθ the absolute temperature; C and λ are constants, their value for the combination of carbon steel and carbide P20 are given in Table 1.
Kitagawa: Journal of Engineering for Industry, Vol.100 (1978) No.5, pp. 236-243

The temperature fluctuation can cause changes in material properties, geometrical size and mechanical properties, which would affect the temperature coefficient of bias and scale factor of the SRA.
Hence the temperature has been one of the most important error sources limiting the SRA performance, and the key challenge for engineering application of SRA.
Su, Optics and Precision Engineering, vol. 18, no. 12, pp. 2583-2589, 2010.

Forchel2 1 Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK 2 Technsche Physick, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany 2 Technische Physik, Institute of Nanostructure Technologies and Analytics, Universität Kassel, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany (present address) 3 Faculty of Electrical Engineering, Bulevar kralja Aleksandra 73, 11120 Belgrade, Serbia and Montenegro 4 Institute of Physics, Pregrevica 118, 11080 Belgrade, Serbia and Montenegro a d.indjin@leeds.ac.uk Keywords: Intersubband Transitions, Molecular Beam Epitaxy, Quantum Cascade Laser.
It has been pointed out that the injector doping density is one of key parameters in QCL optimisation [16-19, 22-24].
Similar effects have been reported for 3QW designs with lower Al content (33%) in the barrier material [2,5].

This “flat” warehousing concept is an effective way to the pursuit of material storage optimization.
The key point is, with classification ability of the knowledge base unchanged, to delete irrelevant or unimportant ones.
MilitaryVirtual Warehousin’s designing and managing.structure and analysis [J].Logistic engineering college transaction，2004，（3）
MilitaryVirtual Warehousing Organise’s struggle analysis [J], Logistic engineering college transaction，2006，（3）

. [35] ü ü ü ü ü ü ü ü ü ü Remove materials and equipment with known low quality
Ali, "Impact of the Feasibility Study on the Construction Projects," in 2nd International Conference on Sustainable Engineering Techniques (ICSET 2019), IOP Conference Series: Materials Science and Engineering, 2019
[38] ICE, Creating Value in Engineering: Design and Practice Guide, London: The Institute of Civil Engineers,Thomas Telford, 1996
Using BIM as a lean management tool in constructioAin Shams Engineering Journal, vol. 12, no. 2, 2022
Design for conArchitectural Engineering and Design Management, vol. 18, no. 3, pp. 279-298, 2020