Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: June 2005
Authors: D. Bernal-Rodríguez, N.N. Treviño, Lorena L. Garza-Tovar, Leticia M. Torres-Martínez
Sol-gel technique has many advantages compared to the conventional methods in preparing raw materials and catalysts.
However, until now the number of photocatalyst materials has been limited.
For solid state materials the only band observed appeared between 600-480 cm-1, that are attributed to M-O bonds for each compound.
Band gap energy Eg, for materials were calculated by using the equation α(hυ)=A(hυ - Eg) m/2.
Elsevier Science, Lausanne, 1993
Online since: June 2017
Authors: J.P. Gomes, W.M. Paiva Barbosa de Lima, A.G. Barbosa de Lima, P. Morais Pessôa, R. Swarnakar
Gava, Principles of food science.
International Journal of Refrigeration, 24 (2001) 1544-170
Journal of Food Engineering, 84 (2008) 509-541
International Journal of Refrigeration. 32 (2009a) 932-1943
International Journal of Refrigeration, 32 (2009b) 359-368
Online since: July 2019
Authors: Taye Girma Debelee, Abrham Gebreselasie, Friedhelm Schwenker, Mohammadreza Amirian, Dereje Yohannes
Classification of Mammograms Using Texture and CNN Based Extracted Features Taye Girma Debelee1,a, Abrham Gebreselasie2,b, Friedhelm Schwenker3,c, Mohammadreza Amirian4,d, and Dereje Yohannes5,e 1Addis Ababa Science and Technology University, Ethiopia; Ulm University,Germany 2Addis Ababa Science and Technology University, Ethiopia 3Ulm University, Germany 4Zurich University of Applied Sciences, Switzerland 5Addis Ababa Science and Technology University, Ethiopia atayegirma@gmail.com, bkgabrham@gmail.com, cfriedhelm.schwenker@uni-ulm.de, dmohammadreza.amirian@zhaw.ch, ederejey@yahoo.com Keywords: Breast Cancer, Mammogram, Modified Adaptive K-Means, Segmentation, Texture Feature, Classifiers Abstract In this paper, a modified adaptive K-means (MAKM) method is proposed to extract the region of interest (ROI) from the local and public datasets.
The results that they obtained with SVM classifier were the best compared to other three classifiers and achieved classification accuracy was 78%.Materials and Methods In this section the proposed approach indicated in Fig 3 is explained in the following subsections.
Gayathri, Approaches for Automated Detection and Classification of Masses in Mammograms, International Journal of Engineering and Computer Science 3:(2014)9097-9011
Salem, Automatic classification of masses from digital mammograms, 35th National Radio Science Conference (NRSC) (2018)495-502
Shi., An Improved K-Means Clustering Algorithm Based on an Adaptive Initial Parameter Estimation Procedure for image segmentation, International Journal of Innovative Computing Information and Control 13:5(2017):1509-1525 [35] S.
Online since: October 2019
Authors: Tran Quoc Toan, Huynh Thi Kieu Linh, Thien Hien Tran, Ngo Thi Quyen, Thuy Trang Le Ngoc, Phan Minh Quan
Material and Methods 2.1.
Materials Fresh Mandarins were purchased in Thu Duc wholesale market in Vietnam.
All of materials with different sizes (50g/ size) were extracted in hydro-distillation method for 90min at 110 ºC.
The yield attained at ground materials peaked at 5%.
This is because as the size of the material decreased, the interfacial area between the material and solvent was enlarged, enhancing the ability of the solvent to attract compounds of the materials, especially polar solvents such as water.
Online since: August 2011
Authors: Ye Fa Tan, Chun Hua Zhou, Hua Tan, Yi Qiang Tu, Xiao Long Wang, Long He
Experimental Procedure Experiment Materials and Preparation.
In addition, the multi-plastic deformation may decrease the potential of the coating materials.
Chen: Materials Science and Engineering, Vol. 308 (2001), p. 277-282 [6] N.
Gulenc: Materials and Design, Vol.23 (2002), p.721-725 [10] A.
Peter, et a1: International Journal of Refractory Metals &{TTP}-250 Hard Materials, Vol. 18 (2000), p. 307-322
Online since: September 2013
Authors: Xin Miao Chen
According to the rich practical experience of the effective English teaching field, scientific research experience and the actual investigation, the author comprehensively analyzed the present situation of current college English listening teaching, conducted the English teaching mode that based on podcasting technology, used bilateral W-test of effective results, and the count materials were dealt with test, eventually the author obtained that the achievement of college English listening teaching based on podcasting technology was significant, it could effectively improve the level of English listening, and at the same time it provided the new teaching mode and scientific path for the college English listening teaching.
The mode analysis of College English listening by using podcasting technology teaching With the rapid development of modern science and technology, all kinds of computer network, multimedia technology has come to the classroom teaching, the teaching methods of the new modern multimedia technology has been rapidly applied to the whole nation.
The research on independent teaching mode of university English listening based on the network .Jilin Engineering and Technical Teachers College Journal,2012(03):72-74 [4] Chen Suqin.
Promoting general metacognitive awareness .Instructional Science,2011(9): 55-59
Online since: May 2012
Authors: Zhen Bao Li, Pei Zhong Zhao, Hua Ma, Kun Song, Chen Wang
Table 1 and 2 are mechanical properties of materials.
Conclusions (1) In this simulation work, based on the ABAQUS software, damage factors in the plastic damage model are adopted for concrete material, and the bilinear hardening model for reinforcement, in which the reinforcement is set as the embedded region.
Acknowledgements This work was financially supported by the National Natural Science Foundation (51078011) and Key scientific and technological project of Beijing Municipal Education Commission (KZ201110005009).
[2] Zhenbao Li, Chunyang Liu, Hua Ma: Journal of Beijing University of Technology.
[7] Zhongqiang Wang, Zhiwu Yu: Journal of Building Material.
Online since: May 2010
Authors: Hartmut Bartelt
Fiber Bragg Gratings in Small Diameter Fibers Due to their small diameters, optical fibers are attractive sensor elements to be embeded in structural materials.
By embedding sensors such as fiber Bragg gratings into the material it becomes possible to monitor the structural behaviour during production and/or operation.
Fiber Bragg Gratings in Fiber tapers The interaction of the guided light in an FBG with the surrounding material can be used for a refractive sensor.
Journal of Lightwave Technology 15(8) (1997), pp. 1263-1276
Journal of Electronic Science and Technology of China 6(4) (2008), 1.
Online since: September 2011
Authors: Jian Wang, Hong Bing Yang
How to find a high strength and low cost of new style greenhouse construction material is an urgent issue in grape rain cultivation.
The multi-span grape rain shed using the new style material is discussed in this paper.
The loads of grape rain shed mainly include dead load such as steel weight, cover material weight, and the dead loads value is 3Nm-1.
Zhang: Journal of Fruit Science, Vol. 26(2009) No.6, P.847.
Giannoulis: Journal of Wind Engineering and Industrial Aerodynamics, Vol. 98(2010) No.12, P. 919
Online since: December 2013
Authors: Qian Zhang, Shu Cai Li, Li Ping Li, Qian Qing Zhang
However, with the deepening of the knowledge about rock medium and its engineering characteristics, the elastic and elasto-plastic theories are found to often have obvious defects in the description and processing for time effect and rheological characteristics of rock material, and the time effect phenomena only can be explained from the rheological point.
The detrital components of highly-weathered breccia are mainly formed by detritus as well as a small amount of mineral fragments with interstitial materials of sand, silt, clay and chemical precipitation.
[2] Guo Zhi: Study of incompetent rock rheological process and strength, Journal of Engineering Geology, 4 (1996), 75-79
T.: Creep of rocks, Journal of Geology, 47 (1939), 225-251
Science in China. 30 (2000), 104-111.