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Online since: January 2022
Authors: Sherzod Ataullaev, Bobokhon Mavlanov, Sadriddin Fozilov, Farkhod Bobokulov, Hasan Fozilov
Where: C1 and C2 - stages of heating raw materials and hydrogen; В1 - reactions on the catalyst surface; A1 - hydrogenates of normal structure; A2 - hydrogenates of cyclic structure; A3-split hydrogenates.
This scheme consists of: 1 - lines of raw materials (deasphalted); 2 - hydrogen; 3 - heated deasphalted material; 4 - heated hydrogen; 5 - normal structure hydrogenizate; 6 - hydrogenate of cyclic structure; 7 - split hydrogenate; 8-normal hydrogenate; 9-isomerized hydrogenate; 10- split hydrogenate.
Changes in pressure during the hydrogenation of deasphaltesate material.
Abdurakhimov, Scientific and technical bases for the development of technological systems for the production and processing of cottonseed oil, Diss. doctor of technical sciences.
Rustamov, Study of system analysis and simulation of the process of destructive hydrogenation of deasphaltesate in the presence of nickel-molybdenum catalysts, Journal of Science and Technology Development. 5 (2019) 233-237
Online since: October 2009
Authors: Ji Gao, Rui Zhang, Guo Qiang Cao, Gui Mu Zhang
Introduction The study of the dynamic destructive mechanism of various solid materials under a high pressure water jet lies in the center of theoretical investigation of a hydro jet.
Damage mechanics theory is able to reflect the physical process of dynamic destruction of different types of materials [1].
The reason was that isotropic materials were adopted at the model but there were some defects in the practical molding sand.
Maejima: International Journal of Rock Mechanics & Mining Sciences, Vol. 41 (2004), pp.833-847
Lu: International Journal of Engineering Science, Vol. 41 (2003), pp.917-920.
Online since: June 2015
Authors: Mohd Firdaus Malek, Mohamad Rusop, Mohamad Hafiz Mamat, A. Ishak
However, the control of doping can modify the electronic properties, particularly the energy gap states and conductivity in the semiconductor materials by controlling the ratio of sp3 / sp2 carbon [1,2].
[2] Shu Liu, Guangfu Wang, Zhenghao Wang, Study of the conductivity of nitrogen doped tetrahedral amorphous carbon films, Journal of Non-Crystalline Solids 353 (2007) 2796-2798
Koidl, rf-plasma deposited amorphous hydrogenated hard carbon thin films: Preparation, properties, and applications, Journal of Application Physics 54 (1983) 4590-4595
Davis, Nitrogen doping of tetrahedral amorphous carbon, Diamond and Related Materials 4 (1995) 441-444
Jimbo, Photovoltaic characteristics of boron-doped hydrogenated amorphous carbon on n-Si substrate prepared by rf plasma enhanced CVD using trimethylboron, Diamond and Related Materials 12 (2003) 687-690.
Online since: September 2017
Authors: Shih Chung Wei, Pei Tung Yang, Frank X. Gu, Kung Bin Sung, Chii Wann Lin
Summary We have successfully imaged different material coated on gold surface.
We expected a more accurate analyzed in monitoring the change of material thickness by further calculation and fitting.
Acknowledgement We thanks to the National Science Council of Taiwan (Project Nos.NSC102-2218-E-002-014-MY3 and 103-2917-I-002-168) for their financial support and the Center for Emerging Material and Advanced Devices of National Taiwan University for its hardware support.
Weiland, et al., "Imaging of Cell/Substrate Contacts of Living Cells with Surface Plasmon Resonance Microscopy," Biophysical Journal, vol. 76, pp. 509-516, 1// 1999
Kawata, "Excitation of surface-plasmon polaritons by a focused laser beam," Journal of the Optical Society of America B, vol. 15, pp. 1381-1386, 1998/04/01 1998
Online since: May 2012
Authors: Na Ning, Lian Hai Ren
Materials and methods of experiment 1.1 Materials and reagents Materials was the waste cooking oil of Beijing Technology and Business University Eastern student cafeteria, which was a dark brown oily liquid after mixing and filtering solids.
Journal of Dongguan University of Technology, 2010, 17(3):92-96
Science &Technology Information, 2009, (24):455-457
Journal of Agricultural Mechanization Research, 2010, (4):189-191
Journal of Liaoning University (Natural Sciences Edition), 2008, 35(2):147-149
Online since: February 2014
Authors: Shuo Zhang, Jin Yun Pu, Dong Zhen Li
The bulkhead material is low-carbon steel.
There are two methods, one is arranging fire-retardant materials at the upper ceiling of cabin used for insulation, and another is installing automatic fire sprinkler system in the cabin, to be able to effectively control the scale of the fire.
Fire Science and Technology,2003,22(4):281–284
China Safety Science Journal,2003,13(6):29–32
China Safety Science Journal,2001,10(6):63-67.
Online since: February 2011
Authors: Yu Bo Chai, Guo Qi Xu, Jun Liang Liu, Xue Hua Wang
For its rigid,endurance material quality,high density, and color like redwood, it could be used as redwood to some extend.
Materials and methods Firstly all the test-pieces were dried to no water, and then divided into two groups: one was for being thermal-treated and the other one was without used as control group.
Mechanical behavior of Eucalyptus wood modified by heat [J] .Wood Science and Technology, 2000, 34: 39-43
[4] SHUICHI DOI,MASAKAZU AOYAMA,SHIGERU YAM—AUCHI,et a1.Changes of decay and termite durability of Japanese larch (1arix leptolepis) wood due to high temperature kiln drying process[J].Journal of wood Science,2005,51(5):526—530
Journal of the Japan Wood Research Society, 2000, 46(2):77-87
Online since: October 2012
Authors: J.S. Mohammed Ali, Nurihan Omar, Y. Aminanda, S. Najwa S. Mohd, S.M. Kashif
World is currently focusing on alternate material sources that are environment friendly and biodegradable in nature.
The damaged area does not mean that a material is more fragile than the other but simply that the way the impact energy is absorbed by the composite
References [1] Li Yulong , Study of similarity law for Bird impact on structure, Chinese Journal of Aeronautics. 21(6) (2008) 512 – 517
[4] Aminanda., “Experimental analysis and modeling of the crushing of honeycomb cores”, Applied Composite Materials, 12 (3-4) (2005) 213-227
Karmaker, “Effect of water absorption on dimensional stability and impact energy of jute fiber reinforced polypropylene”, Journal of Materials Science Letters. 16 (1997) 462-464.
Online since: June 2025
Authors: Mohamed M. Mahmoud, Adel Mohamed H. Elmetwalli, Asaad Derbala, El-Khatib S. Ismail
Materials and Methods The proposed methodological approach of this study has three phases, as shown in Figure 1.
So, the components and raw materials were used with the specifications listed in Table 1 because they were the optimum in the hydraulic tests.
The efficiency of the materials and components used that were created, which aims to reach the highest level of reducing and improving the percentage of salts present in GGW and reducing it by the average of effective for TN is 57.14%, and Total phosphorous is 55.5 %.
Therefore, during the design of this system, consider using materials that help improve water quality to the highest possible degree and achieve a quality suitable for use in agriculture and irrigation.
Helmy, "Performance of an integrated household greywater treatment system for water optimization and reuse," Applied Water Science, vol. 14, no. 11, 2024
Online since: March 2013
Authors: Heng Liu, Zhao Yang Zeng, Yi Min Guo
Introduction Almost all microwave-absorbing samples are made of composite materials.
Therefore, the interaction between microwave and materials is equivalent to current transmission on lines.
Thus a three-dimension impedance simulation of mixed medium are carried out to calculate the effective parameters for microwave absorbing materials.
Nuo, Three-dimension finite differences simulation for periodic structures, Journal of China University of Geoscience, 09(2009),135-140 (in Chinese)
Gao, Electro-magnetic parameter calculation for epoxy-ferrite materials, Journal of Aeronautical Materials, 24(2004), 15-20