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The deterioration of water quality leads to a reduction and blocking on material circulation of the aquatic ecosystem, a decrease on the degree of energy supply and an obstacle on information transfer, which result in a decline in the level of biological diversity.
Table 2 River connected gate dam block mark The barrier characteristics of migratory fish Water and material circulation barrier characteristics score No barrier No regulating effect on runoff 0 Fishway, and normal operation Regulating on runoff, and discharge meet the ecological base flow -25 No fishway, and have barrier effect on migration of part fish Regulating on runoff, and discharge don’t meet the ecological base flow -75 Completely block migration channel Cause zero flow on part time -100 Water quality status. (1) the water temperature variation degree is represented by actual measured average water temperature on the assessment year month by month and the average monthly temperature variation of the maximum value for many years
Advances in Water Science , 2005,16(3):349-355
Journal of Hydraulic Engineering ,2006,37(3): 253-258
Journal of the North American Benthological Society, 1997,16: 439-447.

Effect of Austempering Parameters on Microstructure and Tensile/Impact Behaviours of Micro-Alloyed TRIP-Assisted Steel Vadym Zurnadzhy1,2,a*, Vasily Efremenko1,2,b, Hossam Halfa3,c, Bohdan Efremenko1,d, Alexander Azarkhov1,e, Yuliia Chabak1,2,f, Natalia Zaichuk4,g 1Pryazovskyi State Technical University, 87555 Mariupol (Dnipro), Ukraine 2Institute of Materials Research, Slovak Academy of Sciences, 04001 Kosice, Slovakia 3Central Metallurgical Research and Development Institute, Eltebbin, Helwan, Cairo, 12422, Egypt 4Lutsk National Technical University, 43018 Lutsk, Ukraine avadim.zurnadzhy@gmail.com, bvgefremenko@gmail.com, chossamhalfa@gmail.com, dbodyaefr@gmail.com, ealexazarhov@gmail.com, fjulia.chabak25@gmail.com, gn.zaichuk@lntu.edu.ua Keywords: TRIP-assisted steel, Bainite, Retained austenite, Mechanical properties, Fracture Abstract.
Materials and Methods The low-carbon TRIP-assisted steel with a chemical composition of 0.20 wt% C, 1.79 wt% Si, 1.73 wt% Mn, 0.55 wt% Cr, 0.20 wt% Mo, 0.11 wt% V, 0.045 wt% Nb, 0.009 wt% S, and 0.013 wt% P was smelted in an induction furnace and poured into graphite molds to obtain the round bars of 50 mm diameter.
Acknowledgements This work was funded by Ministry of Education and Science of Ukraine under the projects No. 0123U100374.
Journal of Friction and Wear 33 (2012), 153–159

The larger MR fluid particles allow for stable, highly magnetizable materials and reversible particle aggregation.
Giant deformational effect, tuneable elastic modulus, non-homogeneous deformation and quick response to magnetic field open new opportunities for using such materials for various applications.
Doina Bica, to her outstanding contribution to magnetic fluids science.
Buschow (Ed), Handbook of Magnetic Materials, vol.16, chap.3 (2006) pp.127-208 5.
Sudarshan, Journal of Intelligent Material Systems and Structures,17,393( 2006) 62.

So far, the most accepted processes happen during the plasma sterilization are the inactivation of genetic materials by UV irradiation, erosion of microorganisms by etching and erosion of microorganisms through intrinsic photodesoption, [11].
Although UV radiation is well known for its effects on DNA and other nucleic materials but according to M.
They lost the protoplast with all of the genetic materials.
Materials Life Soc., 23, 120-127 (2011)
Yahia: International Journal of Pharmaceutics, Vol. 226 (2001), p. 1

So biopesticides can be interpreted as all biological materials, whether in the form of plants, animals, microbes, or protozoa that can be used to destroy pests and causes of disease in humans, animals and plants.
In addition to these materials, the EPA also includes. 5.
Genetically engineered plants (plant-incorporatedprotectant), which can produce materials (proteins) that are toxic to pests, such as the Bt gene from the bacterium Bacillus thuringiensis.
Research Material The materials used in this study: 1.
Indonesian Journal of Chemical Analysis

This new class of materials is being developed in our research group [8-10].
The detailed equations are not repeated here to save journal space.
Acknowledgement The authors acknowledge financial support from the Hungarian Academy of Sciences under the grant number OTKA K101781.
Ishida, Formation of immiscible alloy powders with egg-type microstructure, Science, 297 (2002) 990-993
Kaptay, A new class of engineering materials: particles stabilized metallic emulsions and monotectic alloys, Metall.

Synthesis and characterization of comb-type grafted hydrogels Ping Zhang*, Shipu Li, Xinyu Wang, Honglian Dai Biomedical Materials and Engineering Research Center, Wuhan University of Technology，Wuhan 430070, P.
Experimental Section Materials.
Journal of Applied Polymer Science 1998, 67: 805-814 [4] Annaka, M.; Tanaka, C.; Nakahira, T.; Sugiyama, M.; Aoyagi, T.; Okano, T.
Progress in Polymer Science ; 1992; 17;163-249

Dynamic and mitigation analysis of seismic pounding effect on multi-span highway bridges subjected to spatial earthquakes Yong Li 1, 3, a, Liang Zhao 2, b, Hang Sun 3, c, Jingbo Liu 1, d 1 Department of Civil Engineering, Tsinghua University, Beijing, China,100084 2 Jilin Communications Planning and Design Institute, Jilin, China,130000 3 College of architecture and civil engineering, Beijing University of Technology, Beijing, China,100124 3 School of Transportation Science and Engineering, Harbin Institute of Technology, China, 150090 a lyncdw@126.com, b Zhaoliang_1973@126.com, c bridge_hit@126.com, d liujb@tsinghua.edu.cn Keywords: Highway bridge; Pounding; Spatial earthquake; Seismic control; Seismic response; Damper; Nonlinear analysis.
Specific methods, including inserting gaskets made of rubber or other elastic materials between girders or girder and abutment to buffer the impact and restrict the girder displacement, and expanding the gap between the expansion joints to prevent the pounding on newly-constructed bridges, are applied according to the codes.
Acknowledgement This research is financially supported by National Natural Science Foundation of China (Grant number: 51008102).
[9] Sang-Hoon Kim, Masanobu Shinozuka, Effects of seismically induced pounding at expansion joints of concrete bridges, Journal of Engineering Mechanics, 129, 1225~1234, 2003
Lia, Semi-active control of highway bridges with pounding effect by using magneto rheological dampers under earthquake excitations, International Conference on Smart Materials and Nanotechnology in Engineering, 2007

Rafik BENTRAIA2,b, Hocine BENSAHA3,c, Mohamed AZLAOUI4,d 1,4University of Djelfa, Faculty of Science and Technology, Hydraulic Department, Algeria 2Kasdi-Merbah University -Ouargla, Algeria 3Unité de Recherche Appliquée en Énergies Renouvelables, URAER, Centre de Développement des Énergies Renouvelables, CDER, 47133, Algérie ar.zegait@univ-djelfa.dz, bm.bentraia@univ-ouragla.dz, cbensaha_hocine@uraer.dz, dm.azlaoui@univ-djelfa.dz Keywords: Constraint, Cost, Efficiency, Isolated site, Pastoral well, Solar pumping, Abstract.
Situation of the study area Materials and Methods A solar pumping system (Fig.2) generally consists of a photovoltaic generator, an electro-pump group, command and control electronics, and a storage part [25].
Workshop on Materials and Concepts for Photovoltaic Solar Cells: Issues and Challenges (WMCPV’20). 1-6p [3] Funk D (2010).
Eastern Africa Social Science Research Review, 29(2), 113-132
[20] Zegait.R, Bensaha.H, Addoun.T.(2021); Water management and the agricultural development constraints in the Algerian Sahara (Case of the M'Zab Valley); Journal of water and land development; N°50, pp. 175–181 [21] Boubou N. (2019).

Radon (222Rn) and thoron (220Rn) gases enter into the indoor air through exhalation from soil and building materials used in walls, floors and ceilings [7].
Materials and Methods 2.1.
Selection of house and deployment protocol: Radon level in an environment depends upon several factors such as geology of the location (such as hilly, fault, mineralization), environmental conditions (cold, hot, ventilated, dust level), type of house (Mud, Thatch, Bamboo, Modern), type of building materials used in the house and closing/opening period of door/window (i.e. living style).
Miles, Development of maps of radon-prone areas using radon measurements in houses, Journal of Hazardous Materials 61 (1998) 53–58
Wasiolek, Evaluation of the effectiveness of several air-cleaners for reducing the hazard from indoor radon progeny, Aerosol Science & Technology 19 (1993) 268-278.