Results 21 to 30 of about 2,352,425 (243)

Power swing detecting method using principal components analysis

Energy Reports, 2021
During power swing, the distance protection is easily affected by the oscillations of voltage and current which may lead to the mal-operation of the protection. Therefore, a power swing detecting unit is needed to cooperate with distance protection.
Hao Wang, Yuanyuan Dai, Luchuan Fu, Feng Liu, Jianli Hu, Xinzhou Dong, Xiaoning Kang, Wenzhong Li   +7 more
doaj   +1 more source

Nasopalpebral lipoma coloboma syndrome

Indian Journal of Ophthalmology, 2011
Nasopalpebral lipoma-coloboma syndrome is characterized by nasopalpebral lipoma and eyelid coloboma. We report a case of a 16-year-old Indian girl who reported to us with this rare syndrome.
N Suresh Babu, D Raviprakash, Ravi Kumar
doaj   +1 more source

Stock price prediction using principal components.

PLoS ONE, 2020
The literature provides strong evidence that stock price values can be predicted from past price data. Principal component analysis (PCA) identifies a small number of principle components that explain most of the variation in a data set.
Mahsa Ghorbani, Edwin K P Chong
doaj   +1 more source

Molecular characterization of drug-resistant and drug-sensitive Aspergillus isolates causing infectious keratitis

Indian Journal of Ophthalmology, 2011
Purpose: To study the susceptibilities of Aspergillus species against amphotericin B in infectious keratitis and to find out if drug resistance had any association with the molecular characteristics of the fungi.
Niranjan Nayak, Gita Satpathy, Sujata Prasad, Jeewan S Titiyal, R M Pandey, Rasik B Vajpayee   +5 more
doaj   +1 more source

Macular hole in Behçet′s disease

Indian Journal of Ophthalmology, 2011
Objective: To investigate the clinical features, prevalence, role of surgical intervention and the visual prognosis of macular holes (MH) in patients with Behcet′s disease (BD).
Hassan Al-Dhibi, Marwan Abouammoh, Essam Al-Harthi, Abdulrahman Al-Gaeed, Jorgen Larsson, Emad Abboud, Imtiaz Chaudhry   +6 more
doaj   +1 more source

Principal components′ analysis of multifocal electroretinogram in retinitis pigmentosa

Indian Journal of Ophthalmology, 2011
Aims : To determine waveforms of multifocal electroretinogram (mfERG) in patients with retinitis pigmentosa (RP) contributing significantly to the overall retinal response by using principal components′ analysis.
Aniruddha Maiti, Mahesh Uparkar, Sundaram Natarajan, Nishikanth Borse, Jaydeep Walinjkar   +4 more
doaj   +1 more source

Characteristics of Principal Components in Stock Price Correlation

Frontiers in Physics, 2021
The following methods are used to analyze correlations among stock returns. 1) The meaningful part of the correlation is obtained by applying random matrix theory to the equal-time cross-correlation matrix of assets returns.
Wataru Souma
doaj   +1 more source

Integrating Data Transformation in Principal Components Analysis [PDF]

Principal component analysis (PCA) is a popular dimension-reduction method to reduce the complexity and obtain the informative aspects of high-dimensional datasets.
Hu, Jianhua, Huang, Jianhua Z., Maadooliat, Mehdi   +2 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Investigating dark energy experiments with principal components [PDF]

We use a principal component approach to contrast different kinds of probes of dark energy, and to emphasize how an array of probes can work together to constrain an arbitrary equation of state history w(z). We pay particular attention to the role of the
, , , A.J. Albrecht ., B.A. Bassett, B.A. Bassett, Gong-Bo Zhao, HST collaboration, J. Tang, L. Knox, Levon Pogosian, M. Tegmark ., R. Caldwell, R. de Putter, Robert G Crittenden, SDSS collaboration, Supernova Cosmology Project collaboration, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, T.D. Kitching, WMAP collaboration, WMAP collaboration, Z. Ivezic .   +22 more
core   +1 more source