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Online since: August 2023
Authors: Jason J. Keleher, Kiana A. Cahue, Piper M. Smith, Joseph L. Powell, Adam T. Caridi, Ryan J. Gentile
This work will focus on the rationale design of p-CMP cleaning systems for emerging materials (silicon carbide (SiC)) that activate the cleaning chemistry via external stimuli such as megasonic energy.
While significant work has been done on p-CMP cleaning processes for legacy materials, limited research has been reported on emerging substrates like SiC.
At the 17th International Symposium on Semiconductor Cleaning Science and Technology (2022), Cahue et al. reported that traditional PVA brush scrubbing conditions exhibited cleaning performance with supramolecular chemistries with particle removal efficiencies (PRE) north of 85%.[24] Due to the slurry particle loading and aggressive oxidation conditions required for SiC CMP, the post-clean surface roughness (Ra) increased, and significant signs of scratching formed during cleaning.
Tan, Materials (Basel). 6 (2013) 1285–1309; doi:10.3390/ma6041285
Keleher, ECS Journal of Solid State and Technology, 11(12), 123006; https://dx.doi.org/10.1149/2162-8777/aca932 [24] K.
Online since: August 2011
Authors: Peng Bing Zhao, Yao Yao Shi
Its semi-finished product is forged by Titanium Alloy, High Temperature Alloy and other intractable materials.
Experimental Equipments, Materials and Tools.
In this experiment, the necessary equipments, materials and tools are: Vertical Machining Center (850); Horizontal Universal Milling Machine (320mm); Cutting Force Dynamometer (KISTLER 9255B); Transient Signal Recorder (DEWE 3010); two pieces of specimen materials (100mm×81mm×50mm); Plunge milling tool (Φ=12mm); Disc milling tool (Φ=160mm, cutting width=14mm, the number of teeth is 14).
Wang: Journal of Nanjing University of Aeronautics &Astronautics.
Wang: Concise Manual of Metal Cutting (Shanghai Science and Technology Press, China 2007).
Online since: February 2016
Authors: Aleksey Kondratyuk, Rudolf E. Vitske, Vladimir P. Nesterenko
Traditional natural materials (metals, alloys and other structural materials) cannot often meet these high and conflicting requirements.
Therefore, new types of structural materials are created on the basis of fundamental and applied research.
One of the widespread types of new materials is plastic mass.
Kulkov, Polymer composite materials.
Mulenkov and others, Russian Physics Journal 5/2, (2012), 151-155.
Online since: September 2013
Authors: Zhi Qiang Li, Hui Ying Zhao, Guo Qing Zhang, Huan Huan Li, He Chun Yu
For the porous material the orifice is uniform and isotropic, ==, yet for most of the porous material, the orifice is anisotropic and not uniform, and the , , are not equal, the permeability of arbitrary direction is as the Eq. 3:
It shall be assumed as follows in the research process of the guideway: (1) The gas flow in the porous material abides by the Darcy’s law. (2) The gas flow in the porous material and clearance is isothermal viscous flow. (3) There exists the influence of the slip flow on the surface of the guideway [6]. (4) The porous material has the characteristics of isotropy, uniform breathability and no surface obstruction.
The material of the guideway adopts Jinan black granite, its main physical parameters are shown in Table1.
Acknowledgements This work is supported by the National Science and Technology Major Project under Grant No.
No.1 (2008), p.52 (in Chinese) [6] S.Yoshimoto and K.Kohno:J.Journal of Tribology.Vol.123 (2001), p.501
Online since: October 2010
Authors: Guo Feng Du, Yan Zhao, Chao Ma, Si Ping Yu
Nowadays, colleges and universities have not only the mission of transforming nature and creating material civilization but also the responsibility of remolding and affecting the society.
[2] Wang Peiwei and Li Fan: Science& Technology Progress and Policy, 2000(7): p.94-95
[3] Liu Changyun and Wang Enwei: Journal of Beijing University of Chemical Technology (Social Science Edition), 2006(3), p.23~27
[4] Xu Haoyi: Journal of Hunan Institute of Engineering (2005) No.9), p.89~91
[5] Wang Jingying: Theoretical Education Evaluation and Educational Practice (Northeast Normal University Press, 2002) [6] Zhao Yan: Study on the Co-Operative Education Quality Evaluation and Indicators System (Huazhong University of Science and Technology, 2008).
Online since: March 2015
Authors: Yang Yang, Jun Yan Fan, Ling Rui Zhang
These methods have been widely used in various fields such as information project selection, material selection, management decisions, strategy selection, and problems relating to decision-making.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (No. 71463035).
European Journal of Operational Research, 130(3), pp653-664
Huazhong University of Science and Technology Press,1990.
The International Journal of Quality and Reliability Management, 19(2-3), pp122-136
Online since: February 2014
Authors: Wei Fu Liu, Shuang Long Liu, Hong Ying Han
Clastic reservoir sedimentation models Sedimentary geology as other natural sciences as strictly follows the development process of inductive and deductive science general rule, namely, the development of simple, complex to simple trajectory.
Chinese Journal of Geology.
Earth Science Frontiers.
Journal of Palaeogeography.
Earth Science Frontiers.
Online since: September 2013
Authors: Bo Wei Lei, Bing Wu, Zhen Jiang Yu, Zhi Yan Zhao, Zhi Guo Guo
Figure 6 E-R map 4 The introduction of system function First,it provides all kinds of information management and technical support which is necessary for on-site rescue in emergency rescue;Second,it provides emergency exercises and training service for mine rescue crew,the group's leadership and ordinary workers in the daily work; finally, it also provide the management of base relief material, technical data, personnel and the monitor of practice roadway and practice mine.The system which is based on the database information management system establishes the system portal site integrating real-time monitoring system .
Visualization research on regional prediction of coal and gas outburst based on GIS.Journal of Liaoning Technical University(Natural Science), ,2008,6:337-339.
Coal Science and Technology, 2005, (1):1-3.
Journal of Chongqing University of Science and Technology(Natural Sciences Edition), 2012, (1):128-130.
Online since: October 2013
Authors: Xiao Liu, Ting Fang Zi Tang
Study of Constructed Wetland Plant Growth by Computer Image Processing (CIP) Xiao Liu1,a and Tingfangzi Tang2,b 1College of Civil and Architectural Engineering, Kunming University of Science and Technology, Kunming 650500, China 2Beijing China Sciences Environment Protection Co., Ltd, Beijing 100080, China akmliuxiao@163.com, btingfztang@yahoo.com.cn Keywords: computer image processing (CIP); constructed wetland; plant growth information Abstract: This paper developed a kind of non-destructive measurement for the growth process of constructed wetland plant: doing image acquisitions of constructed wetland plant regularly through digital camera imaging; introducing image files to computer through interface, displaying them on the screen of computer; developed “constructed wetland plant image and growth information extraction software” under Visual C++ compiling integrated environment, users could acquire plant contour(realized by image edge recognition) and plant size(characterized
Introduction With the rapid development of computer technology, Computer Image Processing (CIP) has been widely used in the fields of national security defense, industry, medicine, agriculture, surveying and mapping, criminal investigation and environmental science.
Material and Methods 2.1 Experimental design Experiments were conducted in the yard of Tian Jin Hydraulic Science Institute (39°10’N, 117°10’ E).Select Phragmites communis (reed) which has good pollution resistance ability and aesthetic property as monitoring plant.
References [1] Gao, G.Z., Hong, Y., He, Z.Y., Yu, L.F., The application of the image processing technology in the fire fighting simulative training, Journal of national university of defense technology, 25(2003), 49–53
[3] Gong, C.L., Yin, Q., Kuang, D.B., “Remote sensing information extraction of urban environment,” Journal of infrared and millimeter waves, 26(2007), 448–450
Online since: August 2013
Authors: Ding Xie, Qiong Zhang, Jing Zhu, Xiang Hong Li, Xiao Wen Li, Min Sheng
Research hotspots in trehalose synthase gene engineering Ding Xie1, a, Qiong Zhang1,b , Xiang-hong Li 1,c, Jing Zhu 1,d, Min Sheng1,e, and Xiao-wen Li1,f 1 College of Chemical and Biology, Changsha University of Science and Technology, Changsha, Hunan 410114, China acslg5148495@126.com,bzhangqiong6526@163.com, cxianghongli@hotmail.com, dzhujing6329@sina.com, e275987281@qq.com, flixw5619@yahoo.com Keywords: Bacterial strains; Enzymology properties; Molecular mod ification.
Instead of maltose, the starch, such as the broken rice, is taken as raw material.
Acknowledgment This study is supported by Hunan Province Natural Science Fund Committee and Hengyang City Hall Natural Science Fund (11JJ8001), Science and Technology key project of Changsha City (K1205230-11) and The construct program of the key discipline in Hunan province.
Shaw: Journal of Agricultural and Food Chemistry, Vol.54(2006), p. 7098 [9] Y.T.
Wei: Journal of molecular catalysis B: Enzymatic Vol. 90 (2013), p. 26