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| 1 | Scheduling algorithms for two-stage reentrant hy-brid flow shops:minimizing makespan under themaximum allowable due dates显示文摘 | Choi Hyunseon Kim Hyungwon Lee Dongho etal | 2009 | The InternationalJournal of Advanced Manufacturing Technology2009,42,910: | 1 |
| 2 | Hierarchical hidden Markov model with application to joint anal- ysis of ChIP - chip and ChiP - seq data显示文摘 | Hyungwon Choi Debashis Ghosh | 2009 | Bioinformations2009,25,14: | 1 |
| 3 | High -coverage ATPG for datapath circuits with unimplemented blocks 显示文摘 | HYUNGWON K HAYES J P | 2001 | IEEE Trans Computer - Aided Design2001,20,2: | 1 |
| 4 | Alternations in the gut microbiota and metabolome with newly diagnosed unstable angina显示文摘Gut microbiota plays an important role in coronary heart disease, but its compositional and functional changes in unstable angina(UA) remain unexplored. We performed metagenomic sequencing of 133 newly diagnosed UA patients and 133 sex-and age-matched controls, and profiled the fecal and plasma metabolomes in 30 case-control pairs. The alpha diversity of gut microbiota was increased in UA patients:the adjusted odds ratios(ORs) per standard deviation increase in Shannon and Simpson indices were 1.30(95% confidence interval, 1.01-1.70) and 1.36(1.05-1.81), respectively. Two common species(depleted Klebsiella pneumoniae and enriched Streptococcus parasanguinis;P ≤ 0.002) and three rare species(depleted Weissella confusa, enriched Granulicatella adiacens and Erysipelotrichaceae bacterium 6_1_45;P ≤ 0.005) were associated with UA. The UA-associated gut microbiota was depleted in the pathway of Lphenylalanine degradation(P = 0.001), primarily contributed by Klebsiella pneumoniae. Consistently, we found increased circulating phenylalanine in UA patients(OR = 2.76 [1.17-8.16]). Moreover, Streptococcus parasanguinis was negatively correlated with fecal citrulline(Spearman's r_(s)=-0.470, P = 0.009), a metabolite depleted in UA patients(OR = 0.26 [0.08-0.63]). These findings are informative to help understand the metabolic connection between gut microbiota and UA. | Xuezhen Liu Miaoyan Shen Han Yan Pinpin Long Haijing Jiang Yizhi Zhang Lue Zhou Kuai Yu Gaokun Qiu Handong Yang Xiulou Li Xinwen Min Meian He Xiaomin Zhang Hyungwon Choi Chaolong Wang Tangchun Wu | 2022 | Journal of Genetics and Genomics2022,49,3: | 1 |
| 5 | Effect of taper ratio on vibration and stability of a composite thin-walled spinning shaft显示文摘 | SUNGSOO N HYUNGWON Y LIVIU L | 2006 | Thin-Walled Structures2006,44,3: | 1 |
| 6 | Synthesis and characterization of Eu3+ doped Lu2O3 nanophosphor using a solution-combustion method显示文摘 | Sungho Cho Hyungwon Lee Chiwoong Moon Jaehyung Kim Jikoon Park Gyerok Jeon Rena Lee Sanghee Nam | 2010 | Journal of Sol - Gel Science and Technology2010,,2: | 1 |
| 7 | Optimal Design of, Frequency Selective Surface by Genetic Algorithm 显示文摘 | Shim Hyungwon | 2010 | International Journal of preci- sion engineering and manufacturing2010,10,5: | 1 |
| 8 | Overcoming the penetration depth limit in optical microscopy:Adaptive optics and wavefront shaping显示文摘Despite the unique advantages of optical microscopy for molecular specific high resolution imaging of living structure in both space and time,curent applications are mostly limited to research settings.This is due to the aberrations and multiple scattering that is induced by the inhomogeneous refractive boundaries that are inherent to biological systems.However,recent developments in adaptive optics and wavefront shaping have shown that high resolution optical imaging is not fundamentally limited only to the observation of single cells,but can be significantly enhanced to realize deep tissue imaging.To provide insight into how these two closely related fields can expand the limits of bio imaging,we review the recent progresses in their performance and applicable range of studies as well as potential future research directions to push the limits of deep tissuse imnaging. | Cheolwoo Ahn Byungjae Hwang Kibum Nam Hyungwon Jin Taeseong Woo Jung-Hoon Park | 2019 | Journal of Innovative Optical Health Sciences2019,,4: | 0 |
| 9 | Acceleration Workspace of Cooperating Multi-Finger Robot Systems显示文摘We present a mathematical method for acceleration workspace analysis of cooperating multi-finger robot systems using a model of point-contact with friction.A new unified formulation from dynamic equations of cooperating multi-finger robots is derived considering the force and acceleration relationships between the fingers and the object to be handled.From the dynamic equation,maximum translational and rotational acceleration bounds of an object are calculated under given constraints of contact conditions,configurations of fingers,and bounds on the torques of joint actuators for each finger.Here,the rotational acceleration bounds can be applied as an important manipulability index when the multi-finger robot grasps an object.To verify the proposed method,we used a set of case studies with a simple multi-finger mechanism system.The achievable acceleration boundary in task space can be obtained successfully with the proposed method and the acceleration boundary depends on the configurations of fingers. | Hyungwon Shim Jihong Lee | 2008 | Journal of Bionic Engineering2008,5,2: | 0 |
| 10 | An Energy-Efficient 12b 2.56 MS/s SAR ADC Using Successive Scaling of Reference Voltages显示文摘This paper presents an energy efficient architecture for successive approximation register(SAR)analog to digital converter(ADC).SAR ADCs with a capacitor array structure have been widely used because of its simple architecture and relatively high speed.However,conventional SAR ADCs consume relatively high energy due to the large number of capacitors used in the capacitor array and their sizes scaled up along with the number of bits.The proposed architecture reduces the energy consumption as well as the capacitor size by employing a new array architecture that scales down the reference voltages instead of scaling up the capacitor sizes.The proposed 12-bit SAR ADC is implemented in Complementary Metal Oxide Semiconductor(CMOS)0.13 um library using Cadence Virtuoso design tool.Simulation results and mathematical model demonstrate the overall energy savings of up to 97.3%compared with conventional SAR ADC,67%compared with the SAR ADC with split capacitor,and 35%compared with the resistor and capacitor(R&C)Hybrid SAR ADC.The ADC achieves an effective number of bits(ENOB)of 11.27 bits and consumes 61.7 uW at sampling rate of 2.56 MS/s,offering an energy consumption of 9.8 fJ per conversion step.The proposed SAR ADC offers 95.5%reduction in chip core area compared to conventional architecture,while occupying an active area of 0.088 mm2. | Hojin Kang Syed Asmat Ali Shah HyungWon Kim | 2022 | Computers, Materials & Continua2022,,7: | 0 |
| 11 | A Low-Power 12-Bit SAR ADC for Analog Convolutional Kernel of Mixed-Signal CNN Accelerator显示文摘As deep learning techniques such as Convolutional Neural Networks(CNNs)are widely adopted,the complexity of CNNs is rapidly increasing due to the growing demand for CNN accelerator system-on-chip(SoC).Although conventional CNN accelerators can reduce the computational time of learning and inference tasks,they tend to occupy large chip areas due to many multiply-and-accumulate(MAC)operators when implemented in complex digital circuits,incurring excessive power consumption.To overcome these drawbacks,this work implements an analog convolutional filter consisting of an analog multiply-and-accumulate arithmetic circuit along with an analog-to-digital converter(ADC).This paper introduces the architecture of an analog convolutional kernel comprised of low-power ultra-small circuits for neural network accelerator chips.ADC is an essential component of the analog convolutional kernel used to convert the analog convolutional result to digital values to be stored in memory.This work presents the implementation of a highly low-power and area-efficient 12-bit Successive Approximation Register(SAR)ADC.Unlink most other SAR-ADCs with differential structure;the proposed ADC employs a single-ended capacitor array to support the preceding single-ended max-pooling circuit along with minimal power consumption.The SARADCimplementation also introduces a unique circuit that reduces kick-back noise to increase performance.It was implemented in a test chip using a 55 nm CMOS process.It demonstrates that the proposed ADC reduces Kick-back noise by 40%and consequently improves the ADC’s resolution by about 10%while providing a near rail-to-rail dynamic rangewith significantly lower power consumption than conventional ADCs.The ADC test chip shows a chip size of 4600μm^(2)with a power consumption of 6.6μW while providing an signal-to-noise-and-distortion ratio(SNDR)of 68.45 dB,corresponding to an effective number of bits(ENOB)of 11.07 bits. | Jungyeon Lee Malik Summair Asghar HyungWon Kim | 2023 | Computers, Materials & Continua2023,,5: | 0 |