Hala Abdulaziz M ALWARTHAN¹, Mohammad Saud AL ANAZI¹, Narasimha R. PARINE¹, Ramesa Shafi BHAT^1,*, Ghadah ALAMRO¹, Ftoon ALJARBOU¹, Sooad K AL-DAIHAN¹

BIOCELL, Vol.43, No.2, pp. 51-58, 2019, DOI:10.32604/biocell.2019.07019

Abstract Tankyrase1 plays an essential role in cancer progression by regulating telomere length. The study aimed to determine expression of TNKS1 and its regulation in colorectal cancer (CRC) in 20 samples from Saudi patients. mRNA expression of TNKS1 in CRC and paired normal tissues was measured by qRT-PCR. Epigenetic modification of TNKS1 promoter was determined by methylation-specific PCR while somatic mutation was analyzed by Sanger sequencing in exon 10 of the gene. All cancerous and normal tissues expressed TNKS1, but level of expression in CRC tissues was significantly associated with tumor stage though no other parameters; age, gender, and tumor location,… More >

L. Susmel^1,2, D. Taylor², R. Tovo¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.1, No.2, pp. 81-86, 2007, DOI:10.3970/icces.2007.001.081

Abstract This paper investigates some practical aspects related to the use of the Theory of Critical Distances (TCD) when employed to estimate notch fatigue limits. The accuracy of different formalisations of the theory was checked by using experimental data taken from the literature. This exercise allowed us to confirm that the simplest formalisation of the TCD, in which both critical distance and critical stress are material constants [1], is also the most accurate one, giving predictions falling within an error interval of about ±20%. The TCD is also accurate when applied to notches having large opening angles. More >

Xia Li^1,2, Peifeng Niu^1,*, Jianping Liu², Qing Liu²

CMES-Computer Modeling in Engineering & Sciences, Vol.117, No.1, pp. 29-57, 2018, DOI:10.31614/cmes.2018.04020

Abstract An improved teaching-learning-based optimization (I-TLBO) algorithm is proposed to adjust the parameters of extreme learning machine with parallel layer perception (PELM), and a well-generalized I-TLBO-PELM model is obtained to build the model of NO_X emissions of a boiler. In the I-TLBO algorithm, there are four major highlights. Firstly, a quantum initialized population by using the qubits on Bloch sphere replaces a randomly initialized population. Secondly, two kinds of angles in Bloch sphere are generated by using cube chaos mapping. Thirdly, an adaptive control parameter is added into the teacher phase to speed up the convergent speed. And then, according to… More >

Jing Tang¹, Mei-e Fang^1,*, Guozhao Wang²

CMES-Computer Modeling in Engineering & Sciences, Vol.115, No.2, pp. 263-280, 2018, DOI: 10.3970/cmes.2018.01702

Abstract ωB-splines have many optimal properties and can reproduce plentiful commonly-used analytical curves. In this paper, we further propose a non-stationary subdivision method of hierarchically and efficiently generating ωB-spline curves of arbitrary order of ωB-spline curves and prove its Ck−2-continuity by two kinds of methods. The first method directly prove that the sequence of control polygons of subdivision of order k converges to a Ck−2-continuousωB-spline curve of order k. The second one is based on the theories upon subdivision masks and asymptotic equivalence etc., which is more convenient to be further extended to the case of surface subdivision. And the problem… More >

Yufeng Nie, Yu Zhang, Yiqiang Li, Gu YT

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.4, pp. 123-124, 2011, DOI:10.3970/icces.2011.019.123

Abstract When the set of nodes distributed randomly is applied to approximate function, the size of the domain support of point has a great influence on the validity and accuracy of approximation. In order to study the radius of the support domain, this paper gives a new concept of the node density firstly, which not only can characterize the density level of distribution of the node and its calculation algorithm is simple, but also is easy to determine the radius of the support domain; Secondly, based on the concept of the node density, an algorithm which is used to search nodes… More >

Takahide Nakamura

The International Conference on Computational & Experimental Engineering and Sciences, Vol.19, No.4, pp. 115-116, 2011, DOI:10.3970/icces.2011.019.115

Abstract No limitation exists virtually in target size for the classical simulation of atoms with the O(N) algorithms on parallel machines. On the other hand, the time step cannot be changed and hence the total simulation time still remains short. It is meaningful to increase the time step by the coarse-graining the atomic system. The coarse-grained particle (CGP) method has been proposed for such purposes, but it is applicable only to crystalline solids at zero-temperature limit [1,2]. The total energy of the CGP system is defined as the statistical ensemble average of the atomistic Hamiltonian under some certain constraint. For analytic… More >

Zeng Xiangfu, Ma Shaopeng, Ma Qinwei, Chen Pengwan

The International Conference on Computational & Experimental Engineering and Sciences, Vol.17, No.4, pp. 111-112, 2011, DOI:10.3970/icces.2011.017.111

Abstract In order to measure the attitude parameters of the projectile, a high-speed 3-dimensional digital image correlation (H3D-DIC) system is designed and constructed. In the H3D-DIC system, two high-speed cameras are used to capture the images of the projectile from two different directions and the 3-dimensional coordinates of the markers painted on projectile are obtained by processing the images using stereovision techniques. Because of the difference on the resolution of the two cameras, the images captured are with different magnification. Therefore, a new correlation program, in which the parameter of pixel size is also included in the correlation schedule, is designed… More >

Ke JI, nlong Chen, Lina Zhang, Xinhua Ji

The International Conference on Computational & Experimental Engineering and Sciences, Vol.17, No.2, pp. 35-36, 2011, DOI:10.3970/icces.2011.017.035

Abstract The Stress distribution of contact area in engineering structure is complex. Automatic whole-field measurement of photo-elasticity is a feasibility method to solve the contact problem. However, the problem of isoclinic and isochromatic interaction is important in phase-shifting techniques in photo-elasticity. The technique named 8-step phase shifting technique is applied to solve the problem of isoclinic fringe pattern influenced by isochromatic fringe patterns in integer order and half-integer order. Isoclinic parameter in the range of [0,I/2] is given by the method.

Based on the eight-step phase shifting technique, some methods to determine the first principal stress direction of the model… More >

Y.S. Chen, Y.H. Huang, B. Yeung, L. Liu, Y.Y. Hung

The International Conference on Computational & Experimental Engineering and Sciences, Vol.20, No.1, pp. 21-22, 2011, DOI:10.3970/icces.2011.020.021

Abstract Active thermography is an optical-based non-contact inspection method for full-field and quantitative measurement of surface radiation to predict potential faults or inner structure of a test object. The mechanism of the active thermography inspection is to excite the test object using appropriate thermal excitation methods and measure the corresponding thermal response. Active thermography conducts testing in a more controllable way and offer more reliable results compared to passive thermography. This paper reports the development of integrated systems featured some advanced excitation methods and thermal image processing methods. Experiments have been conducted on samples with disbonds, delaminations, internal cracks or voids,… More >

Dongsheng Zhang

The International Conference on Computational & Experimental Engineering and Sciences, Vol.20, No.1, pp. 5-6, 2011, DOI:10.3970/icces.2011.020.005

Abstract Composites which are considered to be a sort of high-performance materials have been used in the aerospace industry, as well as other industries. Due to the high quality standards and the applicable safety purposes, highly precise and non-destructive test methods are highly demanded for both manufacturing and maintenance. This talk describes the portable shearography device which is developed in Shanghai University. The laser projection and inspection sensor are integrated and mounted on the tripod to meet the requirement of field inspections. Two loading systems including thermal and vibrating are introduced to achieve repeatable test results. Real-time phase shifting dramatically improves… More >