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Yapa Mudiyanselage1,b, Seung Yup Jang1,2,c, Adam Morgan2,d, Woongje Sung1,e 1College of Nanotechnology Science and Engineering, University at Albany, State University of New York, Albany, New York, 12203 USA 2NoMIS Power Corporation, Albany, New York, 12203 USA asdeboer@albany.edu, bdyapamudiyanselage@albany.edu, csjang3@albany.edu, dadam.morgan@nomispower.com, ewsung@albany.edu Keywords: 4H-SiC, MOSFET, Channel Density, Layout Design.
Introduction 4H-SiC's superior material properties enable thinner, more heavily doped drift layers that can withstand high breakdown voltages, resulting in lower specific on-resistance (Ron,sp) and making unipolar devices more viable compared to silicon-based counterparts.
The key benefit of this additional JFET and channel region is the large increase in channel density.

When decoupling, the engineering semantics should be considered.
In fact, in applications, the engineering semantics is always having been used, but confusions come when the SMs is without intact engineering semantic and well organizational structure.
SM Mapping with Engineering Semantics.
For example, the systematic engineering dimension is given, and then the views will come from material, energy and information; and when it refers the multidisciplinary, the views will be focused from the various disciplines.
Yu: Chinese Journal of Mechanical Engineering, 2005-10(16),pp.878-881 [6] Y.J.

The materials are 42CrMo4.
Q: Key Engineering Materials Vol. 861 (2020), p. 514
Allwood: Procedia Engineering Vol. 207 (2017), p. 1248
Hua: Materials and Design Vol. 58 (2014), p. 508
Hirt: Production Engineering Vol. 7 (2013), p. 611

The disadvantages of liquid fire extinguishing agents include low heat removal from heated surfaces, due to the effect of film boiling, which is a necessary condition for stopping the burning of solid combustible materials [7].
Using potash while alumogel producing (aluminum hydroxide), in comparison to soda ash, increases the relative fire-extinguishing efficiency on 35 % in extinguishing solid combustible materials. 2.
Aluminum hydroxide, in the process of extinguishing solid combustible materials, forms a layer on the surface of the material, which consist of solid oxide and water (2Al(OH)3→Al2O3+3H2O), this leads to creation a fire-extinguishing and fire-proof insulating effect. 5.
Kodryk, Theoretical Prerequisites for Creating a Fire-Extinguishing Solution Based on Water-Absorbing Polymer Ecoflocf-07 for Extinguishing Fires in Ecosystems et al., Key Engineering Materials, 927 (2022) 87–104 https://doi.org/10.4028/p-647f1v [15] F.Y.
Pankin, Tushenie lesnyh gorjuchih materialov gidrogeljami na osnove gidroksida aljuminija [Fire extingushing of forest flammable materials by hydrogels based on aluminum hydroxide] Lesotehnicheskij zhurnal [Foresty Engineering Journal], 9 1 (33) 76–84 doi:10.12737/article_5c92016e1314b2.49705560 [22] A.I.

Prediction of diffusion coefficients in liquid and solids William Yi Wang1, a, Bi-Cheng Zhou1, b, Jiajia Han3,c, Hua Zhi Fang1,d, ShunLi Shang 1, e, Yi Wang1, f, Xi Dong Hui 2, g, and Zi-Kui Liu1,h 1 Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA 2 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China 3 Department of Materials Science and Engineering, Xiamen University, Xiamen 361005, China a yuw129@psu.edu; b zhoubicheng@gmail.com; c jacer2313@gmail.com; ; d huf12@psu.edu; e sus26@psu.edu; f yuw3@psu.edu; g xdhui@ustb.edu.cn; h dr.liu@psu.edu Keywords: Eyring’s model; Vacancy migration; Interstitial sites; Mean square displacement; Oxidation; Deformation electron density.
Introduction Diffusion is an important materials property, dominating the applications of numerous materials, including metallic alloys, energy storage compounds, polymers and glasses.
Deformation and fracture of Li-ion battery materials are intimately related to Li diffusion in host particles [17].
First-principles calculations were carried out on the LION clusters at the Pennsylvania State University supported by the Materials Simulation Center and the Research Computing and Cyberinfrastructure unit at the Pennsylvania State University.

Pseudo-plastic Behavior of a Film Foam Flow with Carbon Dioxide as the Internal Gas Phase Dongxing DU1,a, Yingge LI2,b and Shijiao Sun1,c 1 Shandong Provincial Key Laboratory of Polymer Material Advanced Manufacturing Technology Colledge of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, P.R.
China 2Colledge of Automation & Electronic Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P.R.
Eq.(1) can be re-arranged in the same shape as Newtonian fluid in the engineering application.
Nutt, “Foam Enhanced Oil-Recovery from Sand Packs”, Chemical Engineering Research and Design, Vol.63, No.3(1985), p.101
Patzek, “Field Application of Foam for Mobility Improvement and Profile Control”, SPE Reservoir Engineering, Vol.11 (1996), p.79

Effect of DC Poling Field on Domain Behavior in Lead-Free Piezoelectric Ceramics Toshio Ogawa1,a, Masahito Furukawa2,b and Takeo Tsukada2,c 1Department of Electrical and Electronic Engineering, Shizuoka Institute of Science and Technology Fukuroi, Shizuoka 437-8555, Japan 2Materials & Process Development Centre, TDK Corporation, Narita, Chiba 286-8588, Japan aogawa@ee.sist.ac.jp, bfurufuru@jp.tdk.com, cttsukada@jp.tdk.com Keywords: domain, lead free, piezoelectric ceramics, poling field dependence Abstract.
Introduction Material research on lead-free piezoelectric ceramics has received much attention because of global environmental considerations.
The key practical issue is the difficulty in realizing excellent piezoelectric properties, such as electromechanical coupling factors and piezoelectric strain constants.

The fluid used is the liquid diesel (Fluent’s material).
So the key objective of this paper is studying the flow field characteristics in three ultrasound path.
Iacovides, et.al: ASME Journal of Fluids Engineering,Vol. 108 (1986), p.214 [6] M.

China 88lingzi@163.com Key words: SOHO, Home Office, Space Design.
If giving consideration to the level of comfort, SOHO furniture shall be healthy, complying with human engineering.
Through the rapid development and accumulation in the 30 years after the opening-up and reform policy was implemented, there are large quantities of people in Mainland China who have possessed the modern material elements and working environment for personal independent work or home office.

Research on the optimization of the lower arm of WEDM taper machine Qi Jingxing1,a, Mao Zhixing2,b, Cai Changtao3,c, Luo Dongdong4,d 1,2,3,4College of Mechanical Engineering and Automation,Xihua University,Chengdu 610039, China aEmail:prcqjx@126.com,bEmail:zhuge04@163.com,cEmail:cct0622@mail.xhu.edu.cn, dEmail: 709542986@qq.com Keywords: the lower arm of DK7725 WEDM Taper Machine; Lightweight; Goal Driven Optimization; Optimization design Abstract: Taking the lower arm of DK7725 WEDM Taper Machine as the research object, this paper uses the ANSYS Workbench collaborative simulation environment to analyze equivalent stress and deformation of the lower arm in the different working conditions, find the weak part of Lower Arm, analyze static structure of the lower arm, and improve lightweight design.
The ANSYS Workbench is a convenient tool, using the AWE of DOE method analyze taper lower arm structure of machine tool.Through analyzing the static characteristic, we can find the weak part of the working process of the lower arm there.Through satisfiying the requirement of stiffness and strength, we can complete DK7725 taper machine optimization and improve the arm by using goal-driven optimized structure of input parameters. 2．The finite element analysis of machine tool the lower arm 2.1 The establishment of the finite element model Finite element model is the basis of finite element analysis, the reasonable modeling is the key to the accurate finite element analysis.
In order to improve the steady state performance of the lower arm and reduce the material utilization rate, to achieve its lightweight design, we optimize the model structure and size.