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197 articles for “L.S. Lee”
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Research ArticleOpen accessIn the author namesAge-Based Association of Glaucoma with the Prevalence of Diabetes and Hypertension at a National Hospital in SeoulSun Jung Lee, Tae Su Jang, Jae Kyung KimGlaucoma can have profound consequences on vision. Although diabetes and hypertension have been suggested as risk factors for glaucoma, their relevance in epidemiological studies remains controversial. Accordingly, we investigated whether diabetes and hypertension, as well as factors such as age and sex, affected the risk of glaucoma. From May 30, 2022, to June 24, 2022, 1152 patients were selected from … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 2 · 5 May 2023 · 5,263 accessesView PDFCite
Research ArticleOpen accessIn the author namesDesign and Analysis of a Helium-Assisted Hybrid Drone for Flight Time EnhancementGeronimo Macias, Kooktae LeeIn this study, a new design of a helium-assisted hybrid drone is proposed for flight time enhancement. As is widely known, most of the drones with a Vertical Take-Off and Landing (VTOL) feature have a short operation time, limiting their capability to carry out sustainable operations for the given missions. Thus, with the clear goal of enhancing flight time, this … …American Journal of Engineering and Applied Sciences, Vol. 15, Issue 4 · 23 Dec 2022 · 6,373 accessesView PDFCite
Research ArticleOpen accessIn the author namesGenotype Screening of Bovine Brachyspina in Taiwan Holstein CowsChun Hsuan Chao, Yi Ming Chen, Kuo Hua LeeThis study analyzed carrier frequencies of the genetic defect bovine brachyspina (BS) in the Holstein cows in Taiwan. In total, 1688 cows from 31 herds were included in the analysis, performed using the Igenity-Prime 50K single-nucleotide polymorphism chip. Of the 1688 cows, 68 (5.09%) were BS carriers (BY), a frequency lower than that reported in Taiwan previously. In Taiwan, the … …American Journal of Animal and Veterinary Sciences, Vol. 15, Issue 3 · 14 Aug 2020 · 6,971 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Design of MAC Model Based on the Separation of Duties and Data Coloring: DSDC-MACSoon-Book Lee, Yoo-Hwan Kim, Jin-Woo Kim, Chee-Yang SongAmong the access control methods for database security, there is Mandatory Access Control (MAC) model in which the security level is set to both the subject and the object to enhance the security control. Legacy MAC models have focused only on one thing, either confidentiality or integrity. Thus, it can cause collisions between security policies in supporting confidentiality and integrity … …Journal of Computer Science, Vol. 16, Issue 1 · 19 Jan 2020 · 7,459 accessesView PDFCite
Research ArticleOpen accessIn the author namesPoisson Quasi-Maximum Likelihood Estimator-based CUSUM Test for Integer-Valued Time SeriesSangyeol LeeThis study considers the parameter change test for integer-valued time series models based on the Poisson quasi-maximum likelihood estimates. As a change point test, we consider the score vector-based CUSUM test and show that its limiting null distribution takes the form of a function of Brownian bridges. Moreover, the residual-based CUSUM tests are considered as alternatives. For evaluation, we conduct … …Journal of Mathematics and Statistics, Vol. 15, Issue 1 · 1 Oct 2019 · 7,650 accessesView PDFCite
Research ArticleOpen accessIn the author namesWettability and Interfacial Tension Alteration of Rare-Earth Doped Yttrium Iron Garnet under Influence of Electromagnetic WavesLau Zhen Yin, Lee Kean Chuan, Beh Hoe Guan et al.Yttrium Iron Garnet (YIG) doped with rare-earth elements have shown to alter the magnetic properties of garnet nanoparticles (NPs), which is believed to have direct influence on the wettability, interfacial tension and viscosity alteration of garnet nanofluids. In this study, Y2.8R0.2Fe5O12 (R = Lanthanum (La), Neodymium (Nd) and Samarium (Sm)) NPs were synthesized by using the sol gel auto-combustion method … …American Journal of Applied Sciences, Vol. 16, Issue 6 · 25 Jul 2019 · 7,684 accessesView PDFCite
Research ArticleOpen accessIn the author namesHybrid, Hybrid Flexible and Fully Online Learning through Students' EyesDolapo Adeniji-Neill, Courtney Lee Weida, Anne MungaiHybrid and fully online studies and classrooms are no longer fringe elements of learning or knowledge acquisition; they have become integral part of learning in the 21st century. Like all modes and styles of learning, they depend on continuous research for best practices in order to remain relevant in terms of effectiveness and growth. This study is a collaboration between … …Journal of Social Sciences, Vol. 14, Issue 1 · 28 Sep 2018 · 8,273 accessesView PDFCite
Research ArticleOpen accessIn the author namesSpousal Interaction and Breast Cancer Screening Among Korean AmericansUsha Menon, Eunice Lee, Jennifer Kue et al.Breast cancer screening rates for Korean Americans (KA) are low, leading to higher morbidity and mortality of the screening interventions tested, almost none account for family interactions and communication between KA couples. The purpose of this study was to explore communication patterns between KA wives and husbands about breast cancer screening after attending an educational program on breast health. Couples … …International Journal of Research in Nursing, Vol. 9, Issue 1 · 30 Mar 2018 · 7,240 accessesView PDFCite
Research ArticleOpen accessIn the author namesPoly(3,4-Ethylenedioxythiophene):Poly(4-Styrenesulfonate) Anode for ITO-Free Organic Light-Emitting DiodesKeanchuan Lee, Martin WeisOrganic Light-Emitting Diodes (OLEDs) devices using flexible substrates are envisioned for flexible, low-cost and roll-to-roll mass production. However, transparent conductive oxides such as indium tin oxide (ITO) do not fit the requirements of flexible devices, fabricated without vacuum-based technology. Hence, conductive polymer poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) has been proposed as an alternative approach to transparent conductive electrodes. The secondary doping of PEDOT:PSS … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 1 · 8 Jan 2018 · 7,590 accessesView PDFCite
Research ArticleOpen accessIn the author namesZinc Composition and its Effect on Magnetic Properties of Nickel-Zinc Ferrite Prepared Via Sol-gel TechniqueLee Kean Chuan, Hasnah Mohd ZaidNickel-Zinc (Ni-Zn) ferrite (Ni1-xZnxFe2O4) with different Zinc composition (x = 0, 0.25, 0.50, 0.75 and 1.0) were prepared and synthesized by applying sol-gel technique and the morphological characterization is done by X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscope (FESEM) to confirm the formation of Ni-Zn ferrite nanoparticle and estimate the particle sizes. Magnetic study was also performed using … …American Journal of Applied Sciences, Vol. 15, Issue 2 · 8 Jan 2018 · 8,064 accessesView PDFCite