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Predicting the 2-dimensional airfoil by using machine learning methods
Thinakaran, K.,Rajasekar, R.,Santhi, K.,Nalini, M. Techno-Press 2020 Advances in computational design Vol.5 No.3
In this paper, we develop models to design the airfoil using Multilayer Feed-forward Artificial Neural Network (MFANN) and Support Vector Regression model (SVR). The aerodynamic coefficients corresponding to series of airfoil are stored in a database along with the airfoil coordinates. A neural network is created with aerodynamic coefficient as input to produce the airfoil coordinates as output. The performance of the models have been evaluated. The results show that the SVR model yields the lowest prediction error.
Ch. Santhi Sundar Raj,K. Rama Prasad,K. Ramanuja Rao,Natnael Teshale A. 원광대학교 기초자연과학연구소 2019 ANNALS OF FUZZY MATHEMATICS AND INFORMATICS Vol.18 No.2
In this paper, we introduce the notion of $L$-fuzzy sublattice of a bounded lattice with truth values in a complete lattice satisfying the infinite meet distributive law and prove certain general properties of these, by observing that these form an algebraic fuzzy set system.
Tongue-lip adhesion in Pierre Robin sequence
K. S. Krishna Kumar,Suresh Vylopilli,Anand Sivadasan,Ajit Kumar Pati,Saju Narayanan,Santhy Mohanachandran Nair 대한구강악안면외과학회 2016 대한구강악안면외과학회지 Vol.42 No.1
Patients with Pierre Robin sequence exhibit varying degrees of airway obstruction and feeding difficulty. In some patients, airway obstruction may be profound, warranting surgical intervention to maintain a patent airway. The purpose of this article is to highlight the advantages of the tongue-lip adhesion procedure for the management of airway obstruction in such patients compared to the currently available options.
R. Santhi,T. E. Sheeja,K. S. Krishnamurthy 한국식물생명공학회 2016 Plant biotechnology reports Vol.10 No.4
microRNAs (miRNAs) are small non-coding RNAs that execute regulation of gene expression at the post-transcriptional level. Information on turmeric miRNAs is very rare. In the present study, we have identified 27 conserved and 40 non-conserved miRNA families by high-throughput Illumina sequencing and downstream in silico analysis. We could also identify 97 novel candidate miRNAs specific to turmeric. Selected miRNAs were validated by stem-loop RT-PCR and northern blotting. The targets were predicted for identified miRNAs and were found to be involved in plant growth and development, stress response and metabolism. Expression pattern of selected conserved miRNAs in response to drought stress was analyzed by stem-loop qRT-PCR. This is the first report on miRNA content of turmeric transcriptome, which might serve as a foundation for more future work on miRNA based gene regulation in this medicinally important spice crop.
Development of fontanelle and paranasal sinuses in the skull of prenatal buffalo (Bubalus bubalis)
Lakshmi, M. Santhi,Rao, T.S. Chandrasekhara,Rajalakshmi, K. The Korean Society of Veterinary Science 2013 大韓獸醫學會誌 Vol.53 No.2
The maxillary sinus appeared first among the sinuses of the skull at 92 days of prenatal stage. The early formation of frontal sinus was observed at 157 days in the cranial most part of the frontal bone while the early formation of palatine sinus was observed at 170 days. A total of five fontanelles were observed in prenatal skulls of buffalo. The largest and unpaired fontanelle was anterior fontanelle. The mastoid and sphenoidal fontanelle were paired. The ossification of anterior fontanelle was first observed at 164 days. All the fontanelles were ossified completely prenatally.
Evaluation of seismic response of soft-storey infilled frames
M. Helen Santhi,G. M. Samuel Knight,K. Muthumani 한국계산역학회 2005 Computers and Concrete, An International Journal Vol.2 No.6
In this study two single-bay, three-storey space frames, one with brick masonry infill in the second and third floors representing a soft-storey frame and the other without infill were designed and their 1:3 scale models were constructed according to non-seismic detailing and the similitude law. The models were excited with an intensity of earthquake motion as specified in the form of response spectrum in Indian seismic code IS 1893-2002 using a shake table. The seismic responses of the soft-storey frame such as fundamental frequency, mode shape, base shear and stiffness were compared with that of the bare frame. It was observed that the presence of open ground floor in the soft-storey infilled frame reduced the natural frequency by 30%. The shear demand in the soft-storey frame was found to be more than two and a half times greater than that in the bare frame. From the mode shape it was found that, the bare frame vibrated in the flexure mode whereas the soft-storey frame vibrated in the shear mode. The frames were tested to failure and the damaged soft-storey frame was retrofitted with concrete jacketing and, subjected to same earthquake motions as the original frames. Pushover analysis was carried out using the software package SAP 2000 to validate the test results. The performance point was obtained for all the frames under study, therefore the frames were found to be adequate for gravity loads and moderate earthquakes. It was concluded that the global nonlinear seismic response of reinforced concrete frames with masonry infill can be adequately simulated using static nonlinear pushover analysis.