• Proceedings of the Korean Magnestics Society Conference
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• 2007.05a
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• pp.137.1-137.1
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• 2007

• 한국초전도학회:학술대회논문집
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• v.14
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• pp.52-52
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• 2004

• Journal of Korean Association for Spatial Structures
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• v.21 no.2
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• pp.18-25
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• 2021

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.11a
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• pp.475-476
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• 2008

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2010.10a
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• pp.134-135
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• 2010

• JSTS:Journal of Semiconductor Technology and Science
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• v.14 no.5
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• pp.640-648
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• 2014

Excessive power dissipation is one of the major issues in the testing of VLSI systems. Many techniques are proposed for scan test, but there are not so many for logic BIST because of its unmanageable randomness. This paper presents a novel low switching activity BIST scheme that reduces toggle frequency in the majority of scan chain inputs while allowing a small portion of scan chains to receive pseudorandom test data. Reducing toggle frequency in the scan chain inputs can reduce test power but may result in fault coverage loss. Allowing a small portion of scan chains to receive pseudorandom test data can make better uniform distribution of 0 and 1 and improve test effectiveness significantly. When compared with existing methods, experimental results on larger benchmark circuits of ISCAS'89 show that the proposed strategy can not only reduce significantly switching activity in circuits under test but also achieve high fault coverage.

• Smart Structures and Systems
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• v.25 no.2
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• pp.229-240
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• 2020

In this research, toggled actuator forces were examined. For achieving to this object, an actuator was installed in a toggle pattern in a S.D.O.F frame and actuator forces were investigated thru a numerical analysis process. Within past twenty years, researchers tried to use strong bracing systems as well as huge dampers to stabilize tall buildings during intensive earthquakes. Eventually, utilizing of active control systems containing actuators to counter massive excitations in structures was emerged. However, the more powerful earthquake excitations, the more robust actuators were required to be installed in the system. Subsequently, the latter process made disadvantage to the active control system due to very high price of the robust actuators as well as their large demands for electricity. Therefore, through a numerical process (Part I), influence of toggled actuator pattern was investigated. The algorithm used in the system was LQR and ATmega328 was selected as a control platform. For comparison, active tendon control system was chosen. The final results show clearly that using the toggle pattern mitigates the required actuator forces enormously leading to deploy much lighter actuators.

• The KIPS Transactions:PartA
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• v.12A no.1 s.91
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• pp.65-70
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• 2005

The elevator system which is operated nowadays at skyscrapers, apartments and enterprises does not offer standby passengers any information of which floor the elevator is going to stop or skip. This study will introduce the system that shows the Passengers a running schedule of the elevator. If this system is utilized for current systems, it will bring so much benefit such as shortening waiting time or choosing alternatives for the passengers. Furthermore, this system will be set up not stopping the floor for the passengers who choose alternatives like using stairs or escalators with using toggle switches. This will be efficient to save the electric power.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.6 no.2
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• pp.45-52
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• 2011

Objective : We had good effects on two patients who had problem with temporomandibular joint by using upper cervical manipulation combined with acupuncture therapy. Methods : Two temporomandibular disorder cases were managed by using upper cervical manipulation, combined with acupuncture therapy. We used Toggle-recoil technique for the purpose of upper cervical manipulation. Results :Even though symptoms of two patients were not same, each cases showed clinical changes by using upper cervical manipulation. Two cases had effects on decreasing pain of temporomandibular joint, and at the first case, the range of motion of temporomandibular joint was increased. Conclusion : We could treat temporomandibular disorder patients by using upper cervical manipulation combined with acupuncture therapy.

• Journal of the Institute of Electronics and Information Engineers
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• v.49 no.9
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• pp.251-258
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• 2012

Recently, NAND Flash memory structure is evolving from SDR (Single Data Rate) to high speed DDR(Double Data Rate) to fulfill the high performance requirement of SSD and SSS. Accordingly, the proper ways of transferring data that latches valid data stably and minimizing data skew between pins by using PHY(Physical layer) circuit techniques have became new issues. Also, rapid growth of speed in NAND flash increases the operating frequency and power consumption of NAND flash controller. Internal voltage variation margin of NAND flash controller will be narrowed through the smaller geometry and lower internal operating voltage below 1.5V. Therefore, the increase of power budge deviation limits the normal operation range of internal circuit. Affection of OCV(On Chip Variation) deteriorates the voltage variation problem and thus causes internal logic errors. In this case, it is too hard to debug, because it is not functional faults. In this paper, we propose new architecture that maintains the valid timing window in cost effective way under sudden power fluctuation cases. Simulation results show that the proposed technique minimizes the data skew by 379% with reduced area by 20% compared to using PHY circuits.