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Just-in-time purchasing was evolved from the just-in-time (JIT) manufacturing, which is a technique that in simple terms calls for the reduction of inventory by having materials ready at each point in the manufacturing process, just in time to be used.
JIT is typically implemented while it translates into production and delivery of finished goods just in time to be sold, subassemblies just in time to be assembled into finished goods, fabricated parts just in time to go into subassemblies, and purchased materials just in time to be transformed into fabricated parts [1].
Acknowledgements This paper is sponsored by Project of the Education Department of Zhejiang Province (GK080807) and National Natural Science Foundation of China (No. 70903021).
Gunasekaran, Just-in-time purchasing: An investigation for research and applications, International Journal of Production Economics, 59(1999), 77–84

A Novel Shield Gate 4H-SiC MOSFET with Reduced Reverse Recovery Losses Disen Peng1,a, Quanyuan Feng2,b* 1The School of Information Science and Technology, Southwest Jiaotong University, China apengdisen@my.swjtu.edu.cn, bfengquanyuan@swjtu.edu.cn Keywords: 4H-SiC MOSFET, shield gate, reverse recovery losses.
Parameter Con-ATMOS ATMOS-SSG P-Shield left region width, WP-S1, [μm] 0.7 0.7 P-Shield bottom of right region width, WP-S2, [μm] 1.0 1.0 N+ region width, WN+, [μm] 0.7 0.7 P-body region width, Wp-body, [μm] 0.7 0.7 CSL region maximal width, WCSL, [μm] 1.2 1.2 P -Shield region thickness, TPS, [μm] 1.4 1.8 N+ region thickness, TN+, [μm] 0.4 0.4 P-body region thickness, Tp-body, [μm] 0.5 0.5 CSL region maximal thickness, TCSL, [μm] 0.5 0.9 The side of Gate oxide thickness, TO_S, [nm] 100 100 The bottom of Gate oxide thickness, TO_B, [nm] 100 200 Shield gate thickness, TSG, [μm] / 0.2 Shield gate width, WSG, [μm] / 0.8 N-drift region concentration, Nd, [cm-3] 8E15 8E15 CSL region concentration, NCSL, [cm-3] 2E16 2E16 Substrate region concentration, NSub, [cm-3] 1E19 1E19 P-Shield region concentration, NPS, [cm-3] 1E18 1E18 Materials and Experimental Methods The power device structure discussed refers to 4H-SiC asymmetric cell Trench MOSFET(ATMOS) structure [7].
Zhang, "A Novel SiC Asymmetric Cell Trench MOSFET With Split Gate and Integrated JBS Diode," in IEEE Journal of the Electron Devices Society, vol. 9, pp. 713-721, 2021, doi: 10.1109/JEDS.2021.3097390
Applied Mechanics and Materials, vol. 121–126, Trans Tech Publications, Ltd., Oct. 2011, pp. 1585–1589

Enzymatic Preparation of Carp Roes’ Hydrolysate with Ca-binding Capacity Yuhuan Li1,a Hai Huang1,2,b* 1.Rizhao polytechnic, China 2.Food science engineering college, Ocean university of China, China 1email:rzliyuhuan@163.com,2email:jxfifagoal@163.com Corresponding author Keywords：Carp roes，Enzymatic preparation，Ca-binding Abstract: The enzymolysis to defatted carps with trypsin protease can obtain enzymatic hydrolysate with Calcium chelation activity.
Materials and methods 2.1 Materials Carp eggs (from the sunshine aquaculture market); 12KU / g flavor protease, 190 KU / g trypsin, 42 KU / g papain, 54 KU / g alkaline protease (Nanning Pombo biological Engineering Co., Ltd); 103 KU/g Alcalase, 150 KU / g neutral protease (Novozymes A/S), Chelex-100 resin (BIO-RAD Company); Folin-Phenol Reagent (Shanghai Sangon), and other analytical reagents.
Journal of Korean Industrial and Engineering Chemistry. 1994, 5, 547–559

Materials and Methods Materials. 2- (dimethyl amino) ethyl methacrylate stabilized with MEHQ (DMAEMA, Mw 157.21.
This study was supported by the Program for Promotion of Fundamental Studies in Health Sciences of the National Institute of Biomedical Innovation（NIBIO）.
The Journal of Gene Medicine 1 (199)156–165

Evaluation of Natural Flocculants for Conventional Water Treatment Ayo Samuel Afolabia, Rudzani Sigwadib, Ambali Saka Abdulkareemc and Corina Mary Mateescud Department of Civil and Chemical Engineering, College of Science, Engineering and Technology University of South Africa, P/Bag X6, Florida 1710, Johannesburg, South Africa.
The production of potable water from most raw water sources usually entails the use of a coagulation/flocculation stage to remove turbidity in the form of suspended and colloidal material [1, 2].
Organic compounds originate from decaying plants and animal matters and from agricultural runoffs, which constitute natural humic material to synthetic organics used as detergents, pesticides, herbicides, and solvents.
Materials and Experimental Procedure The jar test is the most widely used method for evaluating and optimizing the flocculation processes, and this equipment was used in this experiment.
Medical Journal 61 (1984) 712-716

To achieve higher energy efficiency, cost and reliability, the wide bandgap (WBG) power semiconductor materials such as silicon carbide (SiC) offers great potential to replace Si-IGBT because of its wider bandgap, lower voltage drop, faster switching, higher breakdown voltage, higher operating temperature [1-2] and its material properties are shown in Table I.
The material properties between SiC and Si-IGBT Methods To investigate the advantage of SiC in the power module and inverter’s application, we make some assumptions to compare the performance between SiC and Si-IGBT at different ambient temperatures.
Narsimha Raju, Comparative Loss Evaluation of Si IGBT Versus SiC Mosfet (Silicon Carbide) for three phase SPWM Inverter, in Indian Journal of Science and Technology, vol. 8, no. 28, pp. 1928-1935, Oct. 2015.

Omar, The ScientificWorld Journal, (2013), ID 752175. ].
Okumiya, Materials Science Forum, 638-642 (2010), 431-436. ].
Roberti, Materials and Corrosion, 61(2010) 218-221. ,[] A.

New Mechatronic System for Gait Rehabilitation - Functional Requirements Petre Lucian SEICIU 1,a , Ileana CIOBANU 2,b*, Tadeusz MIKOŁAJCZYK3,c, Andreea Georgiana MARIN2,d , Mihai BERTEANU 2,4,e 1Politehnica University, Machine Elements and Tribology Department, Faculty of Mechanical Engineering and Mechatronics, Bucharest, Romania 2Elias University Hospital, Rehabilitation Medicine Department, Bucharest, Romania 3University of Science and Technology, Department of Production Engineering, Bydgoszcz, Poland 4Carol Davila University, Faculty of Medicine, Rehabilitation Medicine Department, Elias Hospital, Bucharest, Romania alucian.seiciu@as.info.ro, bileanacuk@yahoo.co.uk, c tami@utp.edu.pl, dandreea.budrica@yahoo.com, emberteanu@gmail.com Keywords: gait rehabilitation, mechatronic system, ambiental rehabilitation.
References [1] Keller T., Veneman J., Robotics for Neurorehabilitation: Current State and Future Challenges, Applied Mechanics and Materials, Vol. 245, pp. 3-8, 2013 [2] RELIVE, online at: http://www.omtr.pub.ro/cesit/granturi/RELIVE/parteneri.html, 2016 [3] Briscoe R., Grush R.
Journal of the Optical Society of America 1945, 35(5): 357 372., Gillam B, Borsting E.
Applied Mechanics and Materials Vol. 811, 2015, 347-352

According to our collating of previous materials, the connotation of intensive land use mainly focuses on 4 aspects: (1) Intensive land use is to constantly upgrade the efficiency of urban land use through increasing the stock land input, improving the operating management and other approaches under the premise of rational urban layout, optimized land-use structure and sustainable development.
Along with the upgraded economic development level and science and technology, the efficiency of urban land use will be also increased continuously, and the intensive use of urban land shall be the target we are pursuing in constantly
Funds: Funding the Zaozhuang University Youth Science and technology project References [1] Jiating Wang.
Journal of Capital University of Economics. 2009(03)
Chinese Journal of Mechanical Engineering. 2006(06)

The interior wall coating is environmental benign material in building industry.
Introduction Interior wall coating is one of decoration materials widely used in buildings.
Most of the material contains petroleum-based solvents which emit volatile organic compounds (VOCs).
Materials and methods Materials: high quality starch(Wuming Starch Plant,Guangxi), kaolin(Maoming Xinli Mine Products Development Co., Ltd.
Journal of maoming university, 12(4):18-20. (2002)