http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
HAPL: Heterogeneous Array of Programmable Logic Using Selective Mask Patterning
Youngsoo Shin,Insup Shin,Donkyu Baek,Duckhwan Kim,Seungwhun Paik IEEE 2014 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS PART 1 R Vol.61 No.1
<P>A structured ASIC, one kind of programmable logic device (PLD), consists of a homogeneous array of programmable logic elements, or called tiles. The architecture of each tile is supposed to be very general so that any kind of logic can be implemented on it; this is the main reason why a structured ASIC has an inherently limited performance, together with a large area requirement compared to an ASIC. This balances the little mask cost of structured ASIC. We tilt this balance by introducing a small number of different types of tile, each with its own architecture, which can be deployed across different designs by the use of a simple blocking mask. This is made possible by a new photolithography concept called selectively patterned masks (SPM), which we propose. We address the practical issues of SPM, including mask cost and manufacturing time. We introduce the heterogeneous array of programmable logic (HAPL), which is a new structured ASIC which takes advantage of SPM. HAPL has its own tile and routing architectures, and supporting CAD tools for packing and routing. Extensive experiments in 45-nm technology are used to assess HAPL and compare it with ASIC. A HAPL design that is optimized for area is about twice the size of its ASIC counterpart. A delay-optimized HAPL design exhibits a post-layout delay which is, on average, 1.35 that of an equivalent ASIC.</P>
Data-centered persuasion: Nudging user's prosocial behavior and designing social innovation
Shin, Youngsoo,Kim, Jinwoo Elsevier 2018 Computers in Human Behavior Vol.80 No.-
<P><B>Abstract</B></P> <P>By employing individuals' behavioral data collected from routinely used devices, a more effective ‘nudging’ toward changes in individuals' attitudes and behavior can be implemented. To examine the persuasive effect on inducing prosocial behaviors, two types of system concepts were designed, namely shared value systems. We manipulated the usage context of these systems and tested the effects with two independent variables: the status of the system agent and the valence of the agent's feedback. As a result, this study revealed that users' satisfaction and intention for prosocial behavior increased after they experienced the shared value system based on the concept of self-preferential value. Interaction effects were also found between the status of the system agent and the valence of the agent's feedback.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A data-centered model of persuasion for behavior changes is discussed. </LI> <LI> The persuasive effect of employing users' behavior data in the systems is examined. </LI> <LI> Users prefer performing prosocial activities without the burden of self-sacrifice. </LI> <LI> The tailored role of system agents increases users' satisfaction and prosociality. </LI> <LI> Creating shared value systems to induce users' prosocial behavior is suggested. </LI> </UL> </P>
Semicustom Design of Zigzag Power-Gated Circuits in Standard Cell Elements
Youngsoo Shin,Seungwhun Paik,Hyung-Ock Kim IEEE 2009 IEEE transactions on computer-aided design of inte Vol.28 No.3
<P>Zigzag power gating (ZPG) can overcome the long wake-up delay of standard power gating, but its requirement for both nMOS and pMOS current switches, in a zigzag pattern, requires complicated power networks, limiting application to custom designs. We propose a design framework for cell-based semicustom design of ZPG circuits, using a new power network architecture that allows the unmodified conventional logic cells to be combined with custom circuitry such as ZPG flip-flops, input forcing circuits, and current switches. The design flow, from register transfer level description to layout, is described and applied to a 32-b microprocessor design using a 1.2-V 65-nm triple-well bulk CMOS process. The use of a sleep vector in ZPG requires additional switching power when entering standby mode and returning to active mode. The switching power should be minimized so that is does not outweigh the leakage saved by employing ZPG scheme. We formulate the selection of a sleep vector as a multiobjective optimization problem, minimizing both the transition energy and the total wirelength of a design. We solve the problem by employing multiobjective genetic-based algorithm. Experimental results show an average saving of 39% in transition energy and 8% in total wirelength for several benchmark circuits in 65-nm technology.</P>
One-Cycle Correction of Timing Errors in Pipelines With Standard Clocked Elements
Insup Shin,Jae-Joon Kim,Yu-Shiang Lin,Youngsoo Shin IEEE 2016 IEEE transactions on very large scale integration Vol.24 No.2
<P>One of the most aggressive uses of dynamic voltage scaling is timing speculation, which in turn requires fast correction of timing errors. The fastest existing error correction technique imposes a one-cycle time penalty only, but it is restricted to two-phase transparent latch-based pipelines. We perform one-cycle error correction by gating only the main latch in each stage of the pipeline that precedes a failed stage. This new method is applicable to widely used clocking elements, such as flip-flops and pulsed latches. Because it prevents inputs arriving at a stage, which is stalled, it can also be used in pipelines with multiple fan-in, fan-out, and looping. Simulations show an energy saving of 8%-12% with a target throughput of 0.9 instructions per cycle, and 15%-18% when the target is 0.8.</P>
Jaeyoung Shin,Jihyeon Park,Byoungok Cho,Feng Wang,Suping Hao,Dajeong Shin,Youngsoo Kim,Seonil Jang 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Interleukin-31 is associated with hypersensitivity disorders such as atopic dermatitis, allergic rhinitis and asthma. IL-31 is also known to be one of the major "drivers" of pruritus. In the nervous system, pruritus may be enhanced through IL-31-related interactions. However, there were no reports of IL-31 receptor expression in astrocytes. In this study, the expression of IL-31 receptor in astrocytes and the effect of Diospyros lotus extract (DLE) on pruritus factors between microglia and astrocytes were investigated. As a result, the expression of IL-31 receptor A in astrocytes was discovered for the first time. Pretreatment with DLE suppressed the expression of IL-31 receptor A in IL-31-treated astrocytes. On the other hand, pretreatment of DLE in microglia inhibits lipopolysaccharide (LPS) plus interferon gamma (IFN-γ)-induced IL-31 production. DLE inhibited phosphorylation of MAPK, STAT1 and NF-κB in LPS plus IFN-γ stimulated microglia. Taken together, DLE down-regulated IL-31-mediated pruritus factors in both astrocytes and microglia. Therefore, the results of this study suggest the potential of DLE as a material that can relieve chronic itch conditions.
Insup Shin,Jae-Joon Kim,Youngsoo Shin IEEE 2015 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS PART 1 R Vol.62 No.2
<P>Aggressive reduction of timing margins, called timing speculation, is an effective way of reducing the supply voltage for a pipeline circuit and thereby its power consumption. However, probability of timing error increases with the voltage scaling and hence, the errors must be corrected with small cycle penalty. We introduce an improved Razor flip-flop which makes more effective use of its shadow latch, so that a pipeline stage can correct an error while continuing to receive data. This avoids the need for repeated clock gating when timing errors happen simultaneously at different stages, or when an error persists. The new flip-flop also facilitates time-borrowing. Our technique uses less energy than the state-of-the art technique, and the energy saving increases with pipeline length: with 10 stages, 4-9% smaller energy is used.</P>
Seo, Youngsoo,Yoo, Sungwon,Shin, Joonha,Kim, Hyunsoo,Jeon, Sangbin,Shin, Hyungcheol American Scientific Publishers 2016 Journal of nanoscience and nanotechnology Vol.16 No.5
<P>This paper presents an analysis of the Random Telegraph Noise (RTN) of the Gate-Induced Drain Leakage (GIDL) of a Metal Oxide Semiconductor Field Effect Transistor (MOSFET). The RTN data that was measured and analytical equations are used to extract the values of the parameters for the vertical distance of the oxide trap from the interface and of the energy level of the interface trap. These values and equations allow for the distance r between the interface trap and the oxide trap to be extracted. For the first time, the accurate field enhancement factor Gamma(F), which depends on the magnitude of the electric field at the Si/SiO2 interface, was used to calculate the current ratio before and after the electron trapping, and the value extracted for r is completely different depending on the enhancement factor that is used.</P>