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Padiyar, Analysis of Subsynchronous Resonance in Power Systems, Vol. 471, Springer Science & Business Media, (1999) [3] DH Baker, G.E.
Gao, Research on SSO caused by HVDC based on eigenvalue analysis, In Advanced Materials Research, Trans Tech Publications Ltd, 2012, Vol. 383, pp. 4792-4798 [7] H.
Tang, and YN Li, Research of Sub-synchronous Oscillations in HVDC and SSDC Designing, in Advanced Materials Research, Trans Tech Publications Ltd, 2014, Vol. 960, pp. 1062-1067 [8] T.
Yingyin, Design and Implementation of Subsynchronous Damping Controller for HVDC, In Journal of Physics, Conference Series, IOP Publishing, 2020, April, Vol. 1486, No. 6, p. 062033, [15] D.J.
Jiang, Design of HVDC Supplementary Subsynchronous Damping Controller, Advanced Materials Research, 2014, Trans Tech Publ, Vol. 960, pp. 1017-1021

Comprehensive Evaluation on Sensitivity of Ecological Environment in Chengde Chun Li1,a, Jinping Qian2, b College of Resource and Environment Sciences, Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang 050024, China chunlizhpdp@126.com Keywords: ecological environment, sensitivity comprehensive evaluation, Chengde Abstract.
According to the materials of soil types in Chengde, the classification result of soil texture factor’s influence on soil erosion sensitivity has been worked out with the use of ArcGIS.
Vegetation coverage The ground vegetation influence on the land desertification is the important factors,The higher the vegetation coverage are not easy to prosperous soil desertification.According to the present situation of the ecological environment in the investigation of remote sensing image material in Chengde,We divided Chengde city into non-sensitive area , slightly sensitive area, medium sensitive area, highly sensitive area and extremely sensitive area.Non-sensitive area includes most parts of Chengde City,which the vegetation coverage is high, not easy to cause land desertification;slightly sensitive area includes Fengning County, plateaux in dam of Weichang County, the east of Luanping County and the south of Xinglong,which the vegetation coverage is moderate area;medium sensitive area includes Fengning County Yuer Mountain, Sichakou, Grassland, Weichang County YudaoMouth, Xilongtou and Nanshanju and so on, which areas vegetation coverage is less ;highly sensitive area includes
The number of the days winter monsoon wind speed is greater than the sand wind speed Wind speed only in more than a critical value until circumstances may blow and handling of soil particle material to the air,Therefore,Wind speed is the effect of soil particles of handling important factors.According to the research,sand wind speed wind of soil mass is 6 m/s, So choose the data of the number of days spring wind speed more than 6m/s in Chengde,and the standards in 《Ecological function division interim rules》,Chengde city will be divided into general area, slightly sensitive, medium sensitive area, highly sensitive area and extremely sensitive area.General area includes Yuerya Town , Nianzi Town, Dongdadi, Huanjian, Mubeiloutai, Mengziling, Dushigouzi, Tashan, Huapiliuzi and Kuancheng Country of Kuancheng Country ;Xiabancheng south and Bajia of Chengde Country;Bgualing Town, Gushanzi Town, Gualanyu Town, Banbishan Town, Lanqiying Town, Moguyu Town, Dazhangzi Town and Anziling Town of
(Air, water, and soil pollution. 1999) [3] Ouyangzhihua, Wangxiaoke and Miaohong:The research of the ecological environmental sensitivity of China and the method of the regional differences.( Acta Ecologica Sinica.2000) [4] Xiguangcai, Kangmuyi and Zhaocongju: The ecological sensitivity evaluation research of Fukang city(Journal of Beijing Normal University (Natural Science ).2007)

Introduction Whenever two materials are joined an interface is created.
Junction can be treated as a sandwich material which can modulate the transport properties of individual materials.
The easiest set up for low melting materials is the resistive heating method.
An interface is defined as the region exhibiting properties differing from the joined materials.
Sen and Suchitra Sen, Journal of Materials Research 7, 1377, 1992

Al-Ayedc, Naceur Hamdi*a,c Cédric Fischmeisterb, Christian Bruneaub aUniversity of Carthage, Higher Institute of Sciences and Technology of Environment of Borj Cedria, B.P. 1003, 2050, Hammam-Lif, Tunisia. * E-mail: naceur.hamdi@isste.rnu.tn bUMR6226: CNRS-Université de Rennes1, Institut des Sciences Chimiques, Organometallics: Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 35042 Rennes Cedex, France.
Shafiee, Antinociceptive properties of new coumarin derivatives bearing substituted 3, 4-dihydro-2H-benzothiazines, Journal of Pharmaceutical Sciences 22 (2014) 9-17
Mckeown, Phthalocyanine Materials, Cambridge: Cambridge University Press, 1998
Science. 287 ( 2000) 1503-1506
Schäfer, Oils and Fats as Renewable Raw Materials in Chemistry, Angew.

The obtained results showed that power loss in polymer bearings is at least six times less than in conventional white metal ones indicating that polymer journal bearings are more energy efficient and environmentally friendly [15].
Materials and Method An in-situ study is carried out on board of several ships of different types; i.e. container ships, general cargo ships, and bulk carrier ships.
In 1988, Pearl presented the most important application of Bayes formula, called “Bayesian Networks” (BN) and which has a wide application in several fields of science, such as medicine, systems security analysis, image treatment and decision-making [32].
Vulic, ‘Environmental Friendly Ship Propulsion System: Case of Aft Stern Tube Bearing’, in 2012 International Conference on Offshore and Marine Technology: Science and Innovation, Rio Grande, Brazil, 2012, pp. 13–16
J. of Engineering Science and Technology Review 10 (4) (2017), pp. 185- 190

Jana3,c 1,Department of Mathematics, University of Gour Banga, Malda 732 103, India 2Faculty of Military Science, Stellenbosch University, Saldanha 7395, South Africa 3Department of Applied Mathematics, Vidyasagar University, Midnapore 721 102, India atutusanasd@yahoo.co.in, b subhajitchakraborty7@gmail.com, c makinded@gmail.com, djana261171@yahoo.co.in Keywords: MHD flow, stretching cylinder, varaible thermal conductivity, entropy analysis, Bejan number Abstract: The present study is related to entropy analysis during magnetohydrodynamic (MHD) boundary layer flow of a viscous incompressible electrically conducting fluid past a stretching cylinder with convective heating in the presence of a transverse magnetic field.
Therefore while the transverse magnetic field serves to decelerate the fluid flow i.e. achieve flow regulation, the counter-productive effect of heating the fluid is also caused and this requires smart use of magnetic fields so that desired material characteristics are achieved and excessive temperatures not generated.
Makinde, Second law analysis of boundary layer flow with variable fluid properties, ASME - Journal of Heat Transfer, 139(10) (2017) Article# 104505
Nkansah-Gyekye, Numerical investigation into entropy generation in a transient generalized Couette flow of nanofluids with convective cooling, Sadhana - Academy Proceedings in Engineering Science, 40(7) (2015) 2073–2093
Makinde, Entropy analysis for MHD boundary layer flow and heat transfer over a flat plate with a convective surface boundary condition, International Journal of Exergy 10 (2) (2012) 142-154

Increasing the rate of chemical processes in the case of bulk materials can be very slow.
Gvozdeva, Sunscreens, Raw materials and Packaging, 3 (2002) 8-10
Gladkov, New sunprotection materials, Raw materials and Packaging, 1 (2005) 57-60
Sviridova, Sun protective materials.
Li, Toxic potential of materials at the nanolevel, Science, 311 (2006) 622-627

Deifalla2,b* 1Assistant Professor, Physics and Applied Sciences, Future University in Egypt, New Cairo, Egypt 2Professor, Structural engineering and construction management, Future University in Egypt, New Cairo, Egypt a Soliman.alkhatib@fue.edu.eg, b*Ahmed.deifalla@fue.edu.eg Keywords: reliability index, two-way shear, lightweight concrete, EC2.
Those variabilities include and are not limited to the following: (1) random distribution of loads, material properties, and geometric; (2) variation due to small sample size; (3) variabilities of strength methods due to the simplification of actual behavior; (4) design, and construction errors; and (5) lack of knowledge of the real behavior.
International Journal of fatigue 133 (2020)105454
Materials and Structures.

Comparative Analysis of Energy Production and Simulation Software for Photovoltaic Systems in Multiple Moroccan Sites Younes FAOUZI1,a, Omkaltoume EL FATNI1,b, Abderrahim MAFTOUH1,c*, Bouchra LAARABI2,d and Abdelfattah BARHDADI2,e 1LPHE-Modelling and Simulations, Faculty of Sciences, Mohammed V University in Rabat, B.P. 1014, Rabat, Morocco. 2Physics of Semiconductors and Solar Energy Research Team (PSES), Energy Research Center, Ecole Normale Supérieure, Mohammed V University in Rabat, B.P. 5118, Rabat, Morocco.
ayounes_faouzi@um5.ac.ma, bo.elfatni@um5r.ac.ma, cabderrahim_maftouh@um5.ac.ma, dbouchra_laarabi@um5.ac.ma, eabdelfettah.barhdadi@ens.um5.ac.ma *Corresponding author: Abderrahim Maftouh, LPHE-Modelling and Simulations, Faculty of Sciences, Mohammed V University in Rabat, B.P. 1014, Rabat, Morocco.
The report presents a detailed simulation study of 20 mini photovoltaic production plants distributed across Morocco, addressing two key points: a) a comparative analysis of various technologies (Monocrystalline silicon (Mono-si), Polycrystalline silicon (Poly-si), and Amorphous silicon (A-si)) across all sites, and b) an evaluation of simulation results obtained from PVsyst and SAM for the three technologies (Mono-si, Poly-si, and Amorphous-si) across all sites. 2 Materials and Methods 2.1 Geographical and Climatic Conditions This research article presents a comprehensive study aimed at drawing grid-connected photovoltaic yield maps for the entire country of Morocco.
Popoola, Recent advances in solar photovoltaic materials and systems for energy storage applications: a review. 
International Journal on Engineering Applications (IREA), 10 (2022) 252-264

Otsuka 1,c 1 National Institute for Material Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan 2 Multi-disciplinary Materials Research Center, Xi'an Jiaotong University, Xi'an, 710049, China 3 Department of Physics, Xi'an Jiaotong University, Xi'an, 710049, China a WANG.Yu@nims.go.jp, bREN.Xiaobing@nims.go.jp, cOTSUKA.Kazuhiro@nims.go.jp Keywords: Ti-Ni, martensitic transition, strain glass transition, point defects, shape memory effect, ferroic glass.
Acknowledgment The present work was supported by Grant-in-Aid for Scientific Research (B) of JSPS, National Science Foundation of China, and National Basic Research Program of China under Grant No. 2004CB619303 as well as 111 project of China.
Angell: Science Vol. 267 (1995), p. 1924
Ren: Progress in Materials Science Vol. 50 (2005), p. 511
Viehland: Journal of Applied Physics Vol. 88 (2000), p. 3433