We introduce the Gesture Watch, a mobile wireless device worn on user's wrist that allows hand gesture control of other devices. The Watch utilizes an array infrared proximity sensors to sense gestures made over and interprets using hidden Markov models. maps intuitive gross signals such as play pause commands commonly found media players. present our evaluation designed determine its accuracy usability. In study, 10 participants used in both stationary conditions well indoors outdoors....

Free cooling, i.e., directly using outside cold air and/or water to cool down datacenters, can provide significant power savings of datacenters. However, due the limited cooling capability, which is tightly coupled with climate conditions, free currently used only in locations (e.g., North Europe) and periods year. Moreover, applicability further restricted along conservative assumption on workload characteristics virtual machine (VM) consolidation technique as they require provision higher...

Server consolidation plays a key role to mitigate the continuous power increase of datacenters. The recent advent scale-out applications (e.g., web search, MapReduce, etc.) necessitate revisit existing server solutions due distinctively different characteristics compared traditional high-performance computing (HPC), i.e., user interactive, latency critical, and operations on large data sets split across number servers. This paper presents saving solution for datacenters that especially...

Server consolidation plays a key role to mitigate the continuous power increase of datacenters. The recent advent scale-out applications (e.g., web search, MapReduce, etc.) necessitate revisit existing server solutions due distinctively different characteristics compared traditional high-performance computing (HPC), i.e., user interactive, latency critical, and operations on large data sets split across number servers. This paper presents saving solution for datacenters that especially...

Objective: This study aimed to analyze the impact of self-encouragement and social support on self-efficacy employment preparation behavior in adult learners. Methods: conducted a survey learners who participated learning at universities public institutions Gyeonggi-do region. Then, this used total 209 copies for empirical analysis. Results: It was confirmed that had significant effect both behavior. As moderating effect, relationship between observed male female groups, while only group....

Most complex software programs are characterized by program phase behavior and runtime distribution. Dynamism of the two characteristics often makes design-time workload prediction difficult inefficient. Especially, memory stall time whose variation is significant in memory-bound applications has been mostly neglected or handled a too simplistic manner previous works. In this paper, we present novel online dynamic voltage frequency scaling (DVFS) method which takes into account both...

With a rapid increase of image resolution in recent mobile video systems, the memory bandwidth and power consumption have surfaced as critical problems coding. Despite many embedded compression algorithms proposed to overcome these problems, no proper yet been reported with high enough throughput quality loss. This paper first proposes lossless algorithm ratio along hardware architecture for throughput. Experimental results show that achieves at least 60% data without loss bitrate increment....

At high-operating temperature, chip cooling is crucial due to the exponential temperature dependence of leakage current. However, traditional methods, e.g., power/clock gating applied when a threshold reached, often cause excessive performance degradation. In this paper, we propose method for delivering lower energy consumption by integrating and running in temperature-aware manner without incurring penalty. order further reduce consumption, exploited runtime distribution each sub-segment...

Time lag and quantization in temperature sensors enterprise servers lead to stability concerns on existing variable fan speed control schemes. Stability challenges become further aggravated when multiple local controllers are running together with the scheme. In this paper, we present a global scheme which tackles of while reducing performance degradation caused by We first stable based Proportional-Integral-Derivative (PID) controller adaptively adjusting PID parameters according operating...

In portable multimedia devices, one of the most critical issues is to minimize energy consumption and thereby prolong operational lifetime system while maintaining required video quality. this paper, we proposed a power-rate-distortion (P-R-D) model encoding maximize its lifetime. The P-R-D encoder generated in two steps. first step modeling process relationship between power distortion encoder. For this, developed based on power-scalable architecture H.264/AVC using data each functional...

The huge popularity of Korean pop culture overseas, labeled Hallyu, otherwise known as the Wave, is an unprecedented event in cultural history Korea. Many foreign observers tend to see it result government`s policy efforts. This paper claims that Hallyu essence unintended ???success without design.??? No one, including government, intentionally planned it. There were five key factors made possible: competitiveness industries, political economic changes East Asian countries, entrepreneurs...

An event criticality-aware wireless surveillance system tries to minimize the energy consumption by adjusting image distortion (or quality) requirement according criticality. In this paper, we present a novel video encoding method which scales bitrate so as of while satisfying given memory constraint. Given statistics, size, and requirement, presented gives an energy-optimal based on analytic formulation energy-rate-distortion (E-R-D) relationship for target consisting H.264 encoder,...

Complex software programs are mostly characterized by phase behavior and runtime distributions. Due to the dynamism of two characteristics, it is not efficient make workload predictions during design-time. In our work, we present a novel online DVFS method that exploits both distribution in combined Vdd/Vbb scaling. The presented performs bi-modal analysis distribution, then distribution-aware prediction based on analysis. order minimize overhead sophisticated method, table lookups...

Dynamic voltage and frequency scaling (DVFS) for a parallel software program is crucial lowering the ever-increasing power consumption of multiprocessor systems-on-chips (SoCs). In this paper, we propose an analytical DVFS method that judiciously exploits slack by considering varying parallelism over each path in task graph. The proposed overcomes conventional pessimistic assumption on remaining workload, i.e., worst-case execution cycle. It yields minimum average energy utilizing runtime...

Success of workload prediction, which is critical in achieving low energy consumption via dynamic voltage and frequency scaling (DVFS), depends on the accuracy modeling major sources variation. Among them, memory stall time, whose variation significant especially case memory-bound applications, has been mostly neglected or handled too simplistic assumptions previous works. In this paper, we present an analytical DVFS method takes into account variations both computation cycles. The proposed...

In this paper, we propose an event-driven black box surveillance camera which reduces energy consumption by waking up the system only when event is detected and dynamically adjusting video encoding resultant image distortion according to criticality of captured frames called significance level. To achieve goal, find bitrate minimizing while satisfying limited memory space constraint requirement at each level judiciously allocating bit-rate do that, considered trade-off relations between...

Success of workload prediction, which is critical in achieving low energy consumption via dynamic voltage and frequency scaling (DVFS), depends on the accuracy modeling major sources variation. Among them, memory stall time, whose variation significant especially case memory-bound applications, has been mostly neglected or handled too simplistic assumptions previous works. In this paper, we present an analytical DVFS method takes into account variations both computation cycles. The proposed...

Complex software programs are mostly characterized by phase behavior and runtime distributions. Due to the dynamism of two characteristics, it is not efficient make workload predictions during design-time. In our work, we present a novel online DVFS method that exploits both distribution in combined Vdd/Vbb scaling. The presented performs bi-modal analysis distribution, then distribution-aware prediction based on analysis. order minimize overhead sophisticated method, table lookups...

자살예방을 위한 인식개선 캠페인은 국가적 자살예방대책의 핵심사업 중 하나이다. 본 연구는 자살예방 국가전략을 성공적으로 수행하고 있다고 평가되는 뉴질랜드 미국 아일랜드 스코틀랜드 호주의 5개국과 우리나라의 캠페인을 비교 분석하였다. 보건복지부가 제시한 보건커뮤니케이션 캠페인 가이드라인을 토대로 각국의 (1) 목표의 명확성, (2) 표적화 전략의 적절성, (3) 메시지 적합성, (4) 이행의 효율성 측면에서 살펴보았다. 그 결과, 해외 캠페인들의 공통적 요소로 분명한 목표가 포함된 명칭, 사회 맥락을 고려한 대상의 표적화, 구체적인 행동지침을 포함한 슬로건, 정부와 민간의 유기적 협력이 발견되었다. 이를 근거로 우리나라 캠페인이 발전하기 위해서는 보다 전략적 체계를 갖추고, 대상에게 메시지가 전달될 수 있도록 하며, 대중적인 매체를 활용하고, 민간 및 지방조직과의 협력을 강화하며, 체계적인 효과성 평가를 병행할 것을 제언하였다. Public awareness campaign...

ObjectivesZZThis study was conducted to evaluate the effectiveness of a suicide prevention ad- vertising media campaign by Korea Suicide Prevention Center in 2014 and analyze changes levels related-knowledge, attitude, behavior vertisement viewers. MethodsZZData 703 participants who responded both pre post telephone surveys out 1100 adults aged 19 or over randomly selected nationwide were analyzed using strati- fied proportional quota sampling method considering sex, age, region survey...

Effective circuit placement in rectilinear or arbitrarily shaped region is achieved by preplacement of some macro cells. The method based on the self-organization process proposed T. Kohonen (Self Organization and Associati Memory, Springer-Verlag, 2nd ed., 1988). a learning algorithm for neural networks that adjusts weights synapses (links) connecting nodes inputs so connected closely topologically are sensitive to having similar properties. authors obtained good result an when cells their...

Lifetimes of battery-powered monitoring and surveillance systems are limited by the given battery capacity. This could lead either to a complete loss, or significant loss quality in recorded image, events. In this paper, we propose energy-aware video codec-based system design which exploits event characteristics minimize energy consumption through architecture exploration. Given statistics, proposed methodology carries out exploration wireless node (WSN) consisting image sensor, detector,...