9 results for “Sun-Ju Choi”

Research ArticleOpen accessIn the author namesFeedback Control of Quad-Rotors with a Matlab-Based SimulatorStephen Armah, Sun Yi, Wonchang Choi, Dongchul ShinPrecise regulation of position and attitude (roll, pitch and yaw) is one of the most critical tasks to be considered in designing controllers for quadrotor types of Unmanned Aerial Vehicles (UAVs). The MATLAB-based simulator for quadrotors using PD-feedback control to achieve stabilization was developed. MATLAB/Simulink models are used to design and validate the control algorithms and the simulation results are … …American Journal of Applied Sciences, Vol. 13, Issue 6 · 23 Jun 2016 · 7,871 accessesView PDF Cite

Research ArticleOpen accessIn the author namesCYCLIC CHOLECYSTOKININ ANALOGUES EXHIBIT HIGH BLOOD STABILITY AND BINDING AFFINITY WITH CHOLECYSTOKININ RECEPTOREun-Ha Joh, Jae Cheong Lim, Jin Joo Kim et al.Recently, incidence of Cholecystokinin (CCK) receptor is recognized as a factor that determines the aggressive phenotype of pancreatic cancer. In this study, a novel Cholecystokinin (CCK) analogues; DOTA-Nle-cyclo (Glu-Trp-Met-Asp-Phe-Lys-NH2) (DOTA-cCCK) and DOTA-Nle-cyclo (Glu-Trp-Nle-Asp-Phe-Lys-NH2) (DOTA-[Nle]-cCCK) were synthesized and radiolabeled and the targeting abilities on the CCK receptor were evaluated for new CCK receptor targeting agents searching. Peptides were prepared through a … …OnLine Journal of Biological Sciences, Vol. 14, Issue 1 · 2 Jan 2014 · 7,559 accessesView PDF Cite

Research ArticleOpen accessIn the author namesRobust Positioning of Laser Beams Using Proportional Integral Derivative and Based Observer-Feedback ControlKwabena A. Konadu, Sun Yi, Wonchang Choi, Taher Abu-LebdehHigh-precision positioning of laser beams has been a great challenge in industry due to inevitable existence of noise and disturbance. The work presented in this study addresses this problem by employing two different control strategies: Proportional Integral Derivative (PID) control and state feedback control with an observer. The control strategies are intended to stabilize the position of a laser beam … …American Journal of Applied Sciences, Vol. 10, Issue 4 · 19 Apr 2013 · 6,874 accessesView PDF Cite

Research ArticleOpen accessIn the author namesTime-Delay Estimation using the Characteristic Roots of Delay Differential EquationsSun Yi, Wonchang Choi, Taher Abu-LebdehProblem statement: For ordinary dynamic systems (i.e., non-delayed), various methods such as linear least-squares, gradient-weighted least-squares, Kalman filtering and other robust techniques have been widely used in signal processing, robotics, civil engineering. On the other hand, time-delay estimation of systems with unknown time-delay is still a challenging problem due to difficulty in formulation caused. Approach: The presented method makes use … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 7 Apr 2012 · 8,090 accessesView PDF Cite

Review ArticleOpen accessIn the abstractThe Impact of Di-2-Ethylhexyl Phthalate (DEHP) in Focus on the Reproductive System and Toxicity in Rat or Mammalian ModelVenkataramanaiah Poli, Srinivasulu Reddy MotireddyAbsalan, F., Saremy, S., Mansouri, E., Moghadam, M. T., Moghadam, A. R. E., & Razie, G. (2016). Effects of Mono-(2-Ethylhexyl) Phthalate and Di-(2-Ethylhexyl) Phthalate Administrations on Oocyte Meiotic Maturation, Apoptosis and Gene Quantification in Mouse Model. Cell Journal, 18(4), 503–513. https://doi.org/10.22074/cellj.2016.4717 Acevedo‐Rodriguez, A., Kauffman, A. S., Cherrington, B. D., Borges, C. S., Roepke, T. A., & Laconi, M. (2018). Emerging … …American Journal of Pharmacology and Toxicology, Vol. 19, Issue 1 · 6 Jun 2024 · 13,008 accessesView PDF Cite

Research ArticleOpen accessIn the abstractNutrient Contents per Serving of Twelve Varieties of Cooked Rice Marketed in JordanJafar M. El-Qudah, Basem F. Dababneh, Ala'a A. Al-Bakheit et al.Jordan imports rice from different countries without any quality preferences. Twelve varieties of cooked rice marketed in Jordan were analyzed. The content per serving of these varieties were computed for energy, protein, carbohydrates, fat, calcium, sodium, potassium, magnesium, manganese, copper, iron and phosphorous. The protein content per serving found to range from 0.49 g for La Cigala rice to 6.2 … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 3 · 30 Sep 2008 · 8,034 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordCharacterization of Biochemical Compositions, Volatile Compounds and Sensory Profiles of Cabernet Sauvignon Wine in Successive Vintages (2008-2017)Yufeng Ding, Yanli Ma, Suping Li et al.Cabernet Sauvignon grape is an emblematic cultivar of Huailai region, China, allowing obtaining wines accounts for a large proportion of national consumption. This work aimed to determine the differences in basic parameters, organic acids, phenolics, volatile compounds and sensory profiles of Cabernet Sauvignon wines of successive vintages (2008-2017). The total organic acids content ranged from 7.03 to 42.33 g L-1, … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 3 · 17 Aug 2020 · 6,979 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordAnalysis on Characteristics of Corn Farmers on Selecting Seeds Under the Seed Subsidy in China: A Case Study in Liaoning and Hebei Provinces, ChinaNing-Ning Sun, Shoichi Ito, Qianhui Gao et al.The Seed Subsidy (SS) is the direct subsidy to encourage farmers cultivate with high quality seeds, which was introduced to nationwide farmers by Chinese government since 2004. China is the second biggest corn producer in the world and the government has provided SS for the corn producers since 2004. As the government allocated an increasing amount of budgets on SS … …American Journal of Economics and Business Administration, Vol. 4, Issue 2 · 22 May 2013 · 7,170 accessesView PDF Cite