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The Influence of Sulfurization Time and H2S Concentration on the Properties of Cu2ZnSnS4 Thin Films Min Xiea, Daming Zhuangb, Ming Zhaoc, Bojian Lid, Jun Songe Key Lab of Advanced Processing and Manufacturing, Ministry of Education, School of Material Science and Engineering, Tsinghua University, Beijing, 100084, China axieminabc@163.com, bdmzhuang@tsinghua.edu.cn, claoming97@gmail.com, dbillyli8866@163.com, esongjun@tsinghua.edu.cn Keywords: Thin films; CZTS; Sulfurization time; H2S concentration Abstract.
All of these advantages make CZTS one of the most promising materials for thin film solar cells.

Application of Cementing Technology for Shale Gas Horizontal well in Jiaoshiba Block of Fuling Area Yunhai Cui1, a, Haiping Yang1, b, Jian Feng2, c and Yu Song 3, d 1Sinopec Petroleum Engineering Jianghan Corporation, Qianjiang 433124, China 2State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China 3Petrochina Coalbed Methane Company Limited Xinzhou Branch, Xinzhou 036600, China azjcyh2005@sohu.com, b476787643@qq.com, cfengjianswpu@gmail.com, dsyonmsn@gmail.com Keywords: Cementing technology, shale gas, horizontal well, Jiaoshiba Block.
Based on field practice and analysis, it is found that weighted mud displacement has the following disadvantages: A Generally, weighted mud has a larger viscosity, which is not profitable to increase the pump speed and improve the displacement efficiency; B It takes a lot of labor power and material resources for the preparation of weighted mud, resulting in the increase of workload and loss of materials; C The weighted mud remained in the wellbore may affect the well logging in the later stage.

Solis1,d 1Civil Engineering Department, College of Engineering Education, University of Mindanao, Davao City 8000, Philippines assales@umindanao.edu.ph, bm.mabida.476187@umindanao.edu.ph, cm.mamza.476663@umindanao.edu.ph, dk.solis.476854@umindanao.edu.ph Keywords: Pervious Paver Blocks (PPB), High-Density Polyethylene (HDPE), Polypropylene (PP), Compressive Strength, Infiltration Rate Abstract.
This study can also be a basis for future researchers interested in developing novel materials from plastic wastes and help contribute to green construction.
Materials and Methods Materials and Resources.
Chang, “Pervious pavement blocks made from recycled polyethylene terephthalate (PET): Fabrication and engineering properties,” Sustain., vol. 12, no. 16, 2020 [9] S.
Lawagon, “Properties of Fiber Cement Boards Influenced by BSCH (Banana Stem and Corn Husk) Fibers and Citric Acid Addition,” Key Eng.

Perez1,e,* 1Nanotechnology Research Laboratory, Department of Chemical Engineering, University of the Philippines Diliman, Quezon City, Philippines, 1101 1Chemical Engineering Department, Adamson University, Ermita, Manila, Philippines, 1000 aedgarclydelopez09@gmail.com, bmilozafra1097@gmail.com, crenyn.gavan@gmail.com, dvillenaemild@gmail.com, ejdperez@up.edu.ph Keywords: humic acid, silver nanoparticles, colorimetric nanosensor, copper sensing Abstract.
Methodology Materials.
Santana, Humic acids: Structural properties and multiple functionalities for novel technological developments, Materials Science and Engineering C. 62 (2016) 967–974. https://doi.org/10.1016/j.msec.2015.12.001
Perez, Humic Acid Functionalized - Silver Nanoparticles as Nanosensor for Colorimetric Detection of Copper (II) Ions in Aqueous Solutions, Key Eng Mater. 831 (2020) 142–150. https://doi.org/10.4028/www.scientific.net/KEM.831.142
Janas, Copper recovery from industrial wastewater - Synergistic electrodeposition onto nanocarbon materials, Water Resour Ind. 26 (2021). https://doi.org/10.1016/j.wri.2021.100156.

Firstly, the material parameters inside NASGRO equation have been treated stochastically, according to material property statistical definition, as found in [12].
Focusing on material properties, it might happen that the monitored crack propagation on the considered specimen undergoes a trend which is characterized by a very low probability according to the prior knowledge on material properties (as confirmed in Fig. 2.a).
Surely, the optimization of the damage characterization algorithms is the key aspect to be considered to obtain a reliable prognosis, though particle filter can help mitigating the effect of outlier measures because of the limits imposed by the DSS boundaries.
Manes, Crack propagation on helicopter panel: Experimental test and analysis, Engineering Fracture Mechanics, 75 (2008) 866–879
Goel, The statistical nature of fatigue crack propagation, Technical report AFFDL-TR-78-43 (1978), School of Mechanical Engineering, Purdue University

Principal Component Analysis of Processing Properties Of Light Wool Fabrics Tong-hong Xu1, 2, a, Ping Gu 1, b, Hong Sun 2, c 1 College of Textile and Clothing Engineering, Soochow University, Suzhou, 215021 China 2Changzhou Textile and Garment Institute, Changzhou, 213164 China a xth_196299@sina.com.cn, b guping@suda.edu.cn, c sunhong220@126.com Key words: FAST testing system; processing properties; sewing shrinkage; light wool fabric; principal component analysis.
In order to analyze home and abroad wool fabric difference influenced on garment processing, predict potential problem, provide base material for fabric relevant technology adjusted and suit productive enterprises optimizing technology.

This research is based on existing research work, make full use of characteristics of remote sensing image reflects the material properties, the macroscopic characteristics and remote sensing image processing to extract implicit information advantage, the Kunlun Altun - transitional zone in harsh environment, complex geological conditions, to carry out a detailed interpretation of remote sensing and geologic integrated research, extraction structure information and information from a variety of rock units of orogenic belt technology, methods and various resolution remote sensing images, through the study of regional main faults (ductile, brittle) and different types of geological body, dividing into frame, with different rock mass, different rock assemblages, linear and banded structure as the structure interpretation of the elements, and with the test and the geological analysis of the field structures dating, qualitative comprehensive study of regional geological structure, structural
Acknowledgments This study was financially supported by the research Foundation of Key Laboratory of Continental Dynamics (BJ12148).
International Journal of Engineering Research &Technology,2012,1（6）:1-5.

THE ISSUE OF LOW CYCLE FATIGUE SCOPE IN THE DESCRIPTION OF TWO-PARAMETER FATIGUE CHARACTERISTICS Grzegorz SZALA University of Technology and Life Sciences in Bydgoszcz, Faculty of Mechanical Engineering, Department of Machine Design, ul.
The analysis of experimental data shows that this number depends on the type of material (for instance steel type), and may differ significantly from those given above.
The statement "dominate" is of key importance.

Analysis of polycyclic aromatic hydrocarbons using gas chromatography–mass spectrometry with multiphoton ionization technique Adan Li1, a 1Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China aadanli@ysu.edu.cn Keywords: polycyclic aromatic hydrocarbons (PAHs), resonance-enhanced multiphoton ionization(REMPI), ionization efficiency, excited-state lifetime Abstract.
Material and methods Apparatus Fig. 1 shows the experimental setup in this study.

Study on temperature uniformity and rising rate of high-power lithium-ion battery pack Bo Wang1,a, Yu-ming Nie1,b, Zhan-ji Yin1,c, Zhi-tong He1,d 1 Key Laboratory of Operation Safety Technology on Transport Vehicles, Ministry of Transport, PRC, Research Institute of Highway Ministry of Transport, Beijing, Courtyard 8#, Xitucheng Road, Haidian District,100088,China ab.wang@rioh.cn, bym.nie@rioh.cn, cpgss111@163.com, dzt.he@rioh.cn Keywords: high-power lithium-ion battery pack; thermal management; temperature uniformity; temperature rising rate Abstract.
Test battery pack consist of 40 3.6V/8Ah high-power Lithium-ion Battery in series circuit (cathode material is potassium manganate) and 4 temperature sensors were set at equal distance between battery cell; refer to Fig.2.
Thermal characterization of li-ion cells using calorimetric techniques[C] Energy Conversion Engineering Conference and Exhibit, Las Vegas,2000:962-967 [2]Ahmad A.