• Title/Summary/Keyword: SSE2

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A Fast SAD Algorithm for Area-based Stereo Matching Methods (영역기반 스테레오 영상 정합을 위한 고속 SAD 알고리즘)

  • Lee, Woo-Young;Kim, Cheong Ghil
    • Journal of Satellite, Information and Communications
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    • v.7 no.2
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    • pp.8-12
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    • 2012
  • Area-based stereo matchng algorithms are widely used for image analysis for stereo vision. SAD (Sum of Absolute Difference) algorithm is one of well known area-based stereo matchng algorithms with the characteristics of data intensive computing application. Therefore, it requires very high computation capabilities and its processing speed becomes very slow with software realization. This paper proposes a fast SAD algorithm utilizing SSE (Streaming SIMD Extensions) instructions based on SIMD (Single Instruction Multiple Data) parallism. CPU supporing SSE instructions has 16 XMM registers with 128 bits. For the performance evaluation of the proposed scheme, we compare the processing speed between SAD with/without SSE instructions. The proposed scheme achieves four times performance improvement over the general SAD, which shows the possibility of the software realization of real time SAD algorithm.

Seismic Analysis of Traveling Sea Water Screen (해수여과장치의 내진해석)

  • Kim, Heung-Tae;Lee, Young-Shin;Park, Young-Moon
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.24 no.3
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    • pp.289-294
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    • 2011
  • In this study, the seismic analysis of traveling sea water screen for nuclear power plant was performed using finite element model. For qualification of traveling sea water screen, the response spectrum analysis was performed using the given operating basis earthquake(OBE) and safe shutdown earthquake(SSE) floor response spectrum. Dynamic analysis of water sea traveling screen was performed using finite element method. The analytical maximum displacements of traveling sea water screen were 2.5 mm under OBE condition and 4.6 mm under SSE condition. The maximum stresses of traveling sea water screen were 24 MPa under OBE condition and 44 MPa under SSE condition, that this results were 18 %, 27% of yield strength of material. Thus, it can shown that the structural integrity of traveling sea water screen has a stable structure for seismic load conditions.

Inhibitory Effects on Melanin Production in B16 Melanoma Cells of Sedum sarmentosum (B16 Melanoma 세포에서 돌나물 추출물의 멜라닌 생성 저해 효과)

  • Sim, Gwan-Sub;Kim, Jin-Hwa;Lee, Bum-Chun;Lee, Dong-Hwan;Lee, Geun-Soo;Pyo, Hyeong-Bae
    • YAKHAK HOEJI
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    • v.52 no.3
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    • pp.165-171
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    • 2008
  • To develop effective skin whitening agents, we tested natural herbal extracts for their melanogenic inhibitory activities. Sedum samentosum was selected for its inhibitory effect on melanogenesis in B16 melanoma cells. Ethanolic extract of S. samentosum (SSE) was evaluated for antioxidative effect and tyrosinase inhibitory activity of melanogenesis. We investigated the changes in protein level and mRNA level of tyrosinase, tyrosinase related protein (TRP)-1 and TRP-2 by using western blotting and RT-PCR, respectively. SSE showed scavenging activities of free radicals and reactive oxygen species (ROS) with the $IC_{50}$ of 342.7 $\mug/ml$ against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and 64.69 $\mug/ml$ against superoxide radicals in the xanthine/xanthine oxidase system, respectively. SSE treatment suppressed the biosynthesis of melanin up to 46% and reduced tyrosinase activity up to 51% at 100 $\mug/ml$ in B16 melanoma cells. The tyrosinase activity and tyrosinase expression in B16 melanoma cells were reduced in a dose-dependent manner by SSE. Also, SSE was able to significantly inhibit tyrosinase and TRP-1 expression in mRNA level. These results suggest that SSE inhibited melanin production which may be dependent on tyrosinase activity and expression in B16 melanoma cells, and an effective whitening agent for the skin.

The Effect of Self Stretching Exercise in Patients with Shoulder Adhesive Capsulitis (견관절의 유착성 관절낭염 환자에 대한 자가신장운동의 효과)

  • Seo, Byung-Do;Shin, Hyung-Soo
    • The Journal of Korean Physical Therapy
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    • v.22 no.1
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    • pp.19-26
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    • 2010
  • Purpose: The purpose of this study was to compare the effectiveness of (a) a self stretching exercise (SSE) maintained below the level of pain with (b) physical therapy (PT) performed without pain limitation in patients with adhesive capsulitis. Methods: Forty-three subjects with frozen shoulder were recruited. Subjects were randomly assigned to one of two groups - an experimental group (SSE group, $n_1=18$) and a control group (PT group, $n_2=25$). The duration of each intervention was five weeks. We assessed night pains, range of motion (ROM), and shoulder function. Results: Overall, subjects in both groups improved over five weeks (p<0.05). The change in the PT group was greater (p<0.05) Conclusion: SSE carried out under the pain threshold may be used to treat patients with adhesive capsulitis SSE can be prescribed with PT as part of a home program or of group management.

A Study on Real-time Processing of The Gaussian Filter using The SSE Instruction Set. (SSE 명령어 기반 실시간 처리 가우시안 필터 연구)

  • Chang, Pil-Jung;Lee, Jong-Soo
    • Proceedings of the Korea Information Processing Society Conference
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    • 2006.11a
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    • pp.89-92
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    • 2006
  • 본 논문은 SIFT(Scale Invariant Feature Transform)알고리즘의 실시간처리 응용프로그램 작성기법을 기술하고 있는데, 단일 프로세서에서 병렬처리 기능을 지원하도록 설계된 SSE 명령어 집합을 사용하여 가우시안 convolution을 구현하고 있다. SIFT알고리즘의 Scale-space를 생성하는 과정에 수행되는 가우시안 Convolution은 연산시간이 과도하게 요구된다.[1] 2D의 가우시안 필터가 영상을 구성하는 모든 셀과 1:1로 연산을 수행하므로 이 연산의 소요시간은 영상의 가로, 세로 길이 그리고 필터의 크기에 비례하여 결정된다. 이 논문에서 제안하는 방법은 연산을 위해 CPU 내부로 한번 읽어 들인 픽셀자료에 대해 가능한 모든 연산을 SSE 명령어 집합을 사용하여 수행함으로써 병렬 연산에 의한 연산시간 절감과 메모리 접근 최소화를 통한 입출력시간 절감을 통해 전체 연산시간을 단축 하였다.

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Simultaneous Determination of Seven Compounds in Samsoeum by HPLC-PDA

  • Seo, Chang-Seob;Kim, Jung-Hoon;Huang, Dae-Sun;Shin, Hyeun-Kyoo
    • Herbal Formula Science
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    • v.18 no.1
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    • pp.95-103
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    • 2010
  • Objectives : To develop and validate HPLC-PDA methods for simultaneous determination of seven constituents in Samsoeum(SSE). Methods : Reverse-phase chromatography using a Gemini C18 column operating at $40^{\circ}C$, and photodiode array(PDA) detection at 254 and 280 nm, were used for quantification of the seven marker components of SSE. The mobile phase using a gradient flow consisted of two solvent systems. Solvent A was 1.0% (v/v) aqueous acetic acid and solvent B was acetonitrile with 1.0% (v/v) acetic acid. Results : Calibration curves were acquired with $r^2$>0.9997, and the relative standard deviation (RSD) values (%) for intra- and inter-day precision were less than 3.0%. The recovery rate of each compound was in the range of 100.07-112.65%, with an RSD less than 4.0%. The contents of seven compounds in SSE were 1.24-10.53 mg/g. Conclusions : The established method will be helpful to improve quality control of SSE.

The Effects of Scapular Exercise and Kinesio Taping of Upper Trapezius Muscle on Grip Strength (견갑골운동과 상승모근의 키네시오 테이핑 적용이 파악력에 미치는 영향)

  • Kim, Chi-Hyok;Kim, Sung-Joong;Oh, Kang-O;Joen, Ik-Bae
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.18 no.2
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    • pp.1-7
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    • 2012
  • Background: The purpose of this study was to evaluate effects of scapular exercise and Kinesio taping of upper trapezius muscle on grip strength. Method: Subjects were consists of 15 males and 15 females who had disorder of upper extremity. The period of this study is 3 weeks (August 8-26, 2011). We had divided 3 groups, control group, Kinesio taping group, scapluar setting exercise (SSE) group. Results: Grip strength of control group was not significant difference (p>.05). Grip strength of Kinesio taping group was significant difference (p<.05). Grip strength of SSE group was significant difference (p<.05). Grip strength of control group, Kinesio taping group, SSE group were significant difference (p<.05). Conclusion: Kinesio taping group and SSE group are applying on upper trapezius. Both of two groups increased grip strength and was significant difference. Applying Kinesio taping on the upper trapezius and applying SSE on trapezius are effected on the grip strength.

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Effect of Extracts from Sargassum siliquastrum on Shelf-life and Quality of Bread (꽈배기 모자반 추출물 첨가에 의한 빵의 저장성 및 품질 증진 효과)

  • Lee, So-Young;Kim, Koth-Bong-Woo-Ri;Song, Eu-Jin;Kim, Jin-Hee;Kim, Ah-Ram;Kim, Mi-Jung;Moon, Ji-Hea;Kang, Hee-Moon;Lee, Ho-Dong;Hong, Yong-Ki;Ahn, Dong-Hyun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.4
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    • pp.490-496
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    • 2008
  • The purpose of this study was to examine the qualities of breads added with 0.01%, 0.1% and 1% of Sargassum siliquastrum extracts (SSE). The result of total microbial count showed that breads with SSE were reduced with increasing storing time, especially bread with 1% SSE was reduced about 2 log cycle as compared to that of control. The moisture content of the bread added SSE and non-added bread were not significantly different during the early storage period, but after 9 days of storage, the moisture content of control was 13% decreased while that of the SSE added bread was decreased by only $5{\sim}6%$. In the color, lightness and yellowness of bread diminished with increasing amounts of SSE in bread while conversely, redness increased. In sensory evaluation, bread containing 0.01% and 0.1% SSE were preferred than the control over total preference, while bread containing 1% SSE showed the lowest preference. These results suggest that the addition of 0.1% SSE in bread had a good effect on improving the preservation and development of quality.

Samsoeum inhibits systemic anaphylaxis and release of histamine, cytokine in vivo and in vitro

  • Kim, Su-Jin;Kim, Na-Hyung;Moon, Phil-Dong;Myung, Noh-Yil;Kim, Min-Chol;Lee, Ki-Taek;Jo, Hyung-Mook;Kim, Na-Hyun;Rim, Hong-Kun;Seo, Min-Jun;Kim, Jin-Man;Lee, Seung-Eun;An, Nyeon-Hyung;Lee, Kang-Min;Lee, Si-Hyung;Park, Yun-Jum;Jeong, Hyun-Ja;Um, Jae-Young;Kim, Hyung-Min;Hong, Seung-Heon
    • Advances in Traditional Medicine
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    • v.9 no.2
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    • pp.115-127
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    • 2009
  • Samsoeum (SSE) is used in traditional oriental medicine for various medicinal purposes. However, the exact mechanism that accounts for the anti-allergy and anti-inflammatory effects of the SSE is still not fully understood. The aim of the present study is to elucidate whether and how SSE modulates the allergic reactions in vivo, and inflammatory reaction in vitro. In this study, we showed that SSE significantly decreased compound 48/80-induced systemic anaphylaxis, ear-swelling response, histamine release from preparation of rat peritoneal mast cells and anti-dinitropheny IgE-induced passive cutaneous reaction. Also, SSE inhibited the expression of inflammatory cytokine and cyclooxygenase-2 in PMA plus A23187-stimulated human mast cells (HMC-1). In addition, we showed that anti-inflammatory mechanism of SSE is through suppression of nuclear factor-${\kappa}B$ activation and $I{\kappa}B-{\alpha}$ phosphorylation/degradation in HMC-1. These results provided new insight into the pharmacological actions of SSE as a potential molecule for therapy of inflammatory allergic diseases.

Fabrication and Characteristics of Blue-Green and Green LEDs using ZnSSe:Te Active Layers

  • Lee, Hong-Chan
    • Journal of Advanced Marine Engineering and Technology
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    • v.34 no.7
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    • pp.991-996
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    • 2010
  • Blue-green and green LEDs have been successfully fabricated grown by MBE, which has introduced the $ZnS_ySe_{1-x-y}:Te_x$ (x=0.04, y~0.11-0.14) ternary epilayer as an active layer. From the I-V characteristics, the built-in voltage (~2.1 V) is very small compared to other wide bandgap LEDs, such as commercial InGaN-based LEDs (>3.2 V). From the C-V profiling, the effective carrier concentration in the p-type ZnMgSSe cladding layer was evaluated as ${\sim}2.8{\times}10^{16}\;cm^{-3}$ for the present LEDs.