Search Results - "Chang-Kyung Ryoo"

Time-to-go weighted optimal guidance with impact angle constraints by RYOO, Chang-Kyung, CHO, Hangju, TAHK, Min-Jea

“…In this paper, the optimal guidance law with terminal constraints of miss distance and impact angle is presented for a constant speed missile against the…”
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Scaling Effect on Silicon Nitride Memristor with Highly Doped Si Substrate by Kim, Sungjun, Jung, Sunghun, Kim, Min‐Hwi, Chen, Ying‐Chen, Chang, Yao‐Feng, Ryoo, Kyung‐Chang, Cho, Seongjae, Lee, Jong‐Ho, Park, Byung‐Gook

“…A feasible approach is reported to reduce the switching current and increase the nonlinearity in a complementary metal–oxide–semiconductor (CMOS)‐compatible…”
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High-Altitude Terminal Control of Anti-Air Missiles With a Terminal Booster and Front Lateral Impulse Thrusters by Jeon, Ha-Min, Kang, Tae Young, Park, Jongho, Ryoo, Chang-Kyung

“…We propose a high-altitude terminal control scheme for anti-air missiles that uses a terminal booster and one-off front lateral impulse thrusters. The terminal…”
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Quaternion Based Three-Dimensional Impact Angle Control Guidance Law by Kim, Jeong-Hun, Park, Sang-Sup, Park, Kuk-Kwon, Ryoo, Chang-Kyung

“…This article deals with a guidance law for impact angle control (IAC) in the 3-D space. Extended from the 2-D IAC law, the proposed guidance law is derived…”
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An Autonomous Space Navigation System Using Image Sensors by Hong, Ju-Hyeon, Park, Woosung, Ryoo, Chang-Kyung

“…Space navigation has been a research topic for decades, with autonomy within its remit being a challenging area. Conventional space navigation approaches are…”
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Design and Electrical Characterization of 2-T Thyristor RAM With Low Power Consumption by Kim, Youngmin, Kwon, Min-Woo, Ryoo, Kyung-Chang, Cho, Seongjae, Park, Byung-Gook

“…In this letter, a Si-based two-terminal (2-T) thyristor random-access memory (TRAM) device is designed and characterized, and its operation window and power…”
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Three-Dimensional nand Flash Architecture Design Based on Single-Crystalline STacked ARray by KIM, Yoon, YUN, Jang-Gn, PARK, Byung-Gook, PARK, Se Hwan, KIM, Wandong, JOO YUN SEO, KANG, Myounggon, RYOO, Kyung-Chang, OH, Jeong-Hoon, LEE, Jong-Ho, SHIN, Hyungcheol

“…Various critical issues related with 3-D stacked nand Flash memory are examined in this paper. Our single-crystalline STacked ARray (STAR) has many advantages…”
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Emulation of spike-timing dependent plasticity in nano-scale phase change memory by Kang, Dae-Hwan, Jun, Hyun-Goo, Ryoo, Kyung-Chang, Jeong, Hongsik, Sohn, Hyunchul

“…The spike-timing dependent plasticity (STDP) of biological synapses, which is known to be a function of the formulated Hebbian learning rule of human…”
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Impact Angle Control Law with Sinusoidal Evasive Maneuver for Survivability Enhancement by Lee, Jin-Ik, Ryoo, Chang-Kyung

“…In this paper, a new guidance law to enhance the survivability of anti-ship missiles against anti-air threats is presented. Sinusoidal maneuver acceleration is…”
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Energy Optimal Waypoint Guidance Synthesis for Antiship Missiles by Ryoo, Chang-Kyung, Shin, Hyo-Sang, Tahk, Min-Jea

“…Planar waypoint guidance synthesis methods for antiship missiles (ASMs) using optimal guidance laws are proposed. The energy optimal trajectory optimization…”
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Guidance Synthesis for Evasive Maneuver of Anti-Ship Missiles Against Close-In Weapon Systems by Kim, Yoon-Hwan, Ryoo, Chang-Kyung, Tahk, Min-Jea

“…In this paper, we propose a guidance synthesis method for enhancing anti-ship missiles' survivability against ship-borne CIWS (close-in weapon system). Using…”
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Fault tolerant control for satellites with four reaction wheels by Jin, Jaehyun, Ko, Sangho, Ryoo, Chang-Kyung

“…The authors propose a simple and effective fault tolerant control method for satellites with four reaction wheels. The proposed method is based on dynamic…”
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Recursive time-to-go estimation for homing guidance missiles by Tahk, Min-Jea, Ryoo, Chang-Kyung, Cho, Hangju

“…This paper addresses the problem of computing accurate time-to-go estimates, which is an important issue in implementing various optimal guidance laws…”
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Novel Protruded-Shape Unipolar Resistive Random Access Memory Structure for Improving Switching Uniformity through Excellent Conductive Filament Controllability by Ryoo, Kyung-Chang, Kim, Sungjun, Oh, Jeong-Hoon, Jung, Sunghun, Jeong, Hongsik, Park, Byung-Gook

“…Resistive random access memory (RRAM) with a new structure which can effectively control switching area and electric field is proposed. It has been verified…”
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Novel U-Shape Resistive Random Access Memory Structure for Improving Resistive Switching Characteristics by Ryoo, Kyung-Chang, Oh, Jeong-Hoon, Jung, Sunghun, Jeong, Hongsik, Park, Byung-Gook

“…We firstly propose a novel U-shape resistive cell structure which is the best fit for generating low power resistive random access memory (RRAM) with…”
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3-D Floating-Gate Synapse Array With Spike-Time-Dependent Plasticity by Choi, Hyun-Seok, Wee, Dae-Hoon, Kim, Hyungjin, Kim, Sungjun, Ryoo, Kyung-Chang, Park, Byung-Gook, Kim, Yoon

“…This paper proposes a 3-D floating-gate (FG) synapse array for neuromorphic applications. The designed device has certain advantages over previous planar FG…”
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Areal and Structural Effects on Oxide-Based Resistive Random Access Memory Cell for Improving Resistive Switching Characteristics by Ryoo, Kyung-Chang, Oh, Jeong-Hoon, Jung, Sunghun, Jeong, Hongsik, Park, Byung-Gook

“…A new technical improvement in understanding the resistive switching characteristics of unipolar resistive random access memory (RRAM) is investigated. It is…”
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Circuit-level simulation of resistive-switching random-access memory cross-point array based on a highly reliable compact model by Kim, Min-Hwi, Kim, Sungjun, Ryoo, Kyung-Chang, Cho, Seongjae, Park, Byung-Gook

“…In this study, a simple, reliable, and universal circuit model of bipolar resistive-switching random-access memory (RRAM) is presented for the circuit-level…”
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Ring Contact Electrode Process for High Density Phase Change Random Access Memory by Ryoo, Kyung-Chang, Song, Yoon Jong, Shin, Jae-Min, Park, Sang-Su, Lim, Dong-Won, Kim, Jae-Hyun, Park, Woon-Ik, Sim, Ku-Ri, Jeong, Ji-Hyun, Kang, Dae-Hwan, Kong, Jun-Hyuck, Jeong, Chang-Wook, Oh, Jae-Hee, Park, Jae-Hyun, Kim, Jeong-In, Oh, Yong-Tae, Kim, Ji-Sun, Eun, Seong-Ho, Lee, Kwang-Woo, Koh, Seong-Pil, Fai, Yung, Koh, Gwan-Hyob, Jeong, Gi-Tae, Jeong, Hong-Sik, Kim, Kinam

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Effect of Oxidation Amount on Gradual Switching Behavior in Reset Transition of Al/TiO 2 -Based Resistive Switching Memory and Its Mechanism for Multilevel Cell Operation by Oh, Jeong-Hoon, Ryoo, Kyung-Chang, Jung, Sunghun, Park, Yongjik, Park, Byung-Gook

“…To analyze and explain the gradual reset switching property of the bipolar switching resistive random access memory (RRAM) for multilevel cell (MLC) operation,…”
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