• Journal of the Korean Institute of Telematics and Electronics C
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• v.35C no.1
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• pp.15-24
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• 1998

This paper proposes a new template matching algorithm and its chip design. The CC and SAD algorithms require the massive amount of computation. Hence, several algorithms using quantization schemes have been proposed to reduce the amount of computation and its hardware cost. the proposed algorithm called the EMPPM improves at least 22% of the noise margin compared with the MPPM algorithm. In addition, the proposed architecture can reduce the gate count by more than 60% of that used in the SAD algorithm without usig quantization schemes and 28% of the MPPM algorithm. The VHDL models have been simulated by using the CADANCETEX>$^{TM}$ and logic synthesis has been performed by using the SYNOPSYSTEX>$^{TM}$ with $0.6\mu\textrm{m}$ SOG(sea-of-gate) cell library. The implemented chip consists of 35,829 gates, operates at 100 MHz (worst case 53 MHz) and performs the template maching with the speed of 200 Mpixels/sec.

• JSTS:Journal of Semiconductor Technology and Science
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• v.6 no.4
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• pp.240-245
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• 2006

Viterbi decoder is composed of BMU(Branch metric Unit), ACSU(Add Compare Select Unit), and SMU(Survivor path Memory Unit). For high speed viterbi decoders, ACSU is the main bottleneck due to the compare-select and feedback operation. Thus, many studies have been advanced to solve the problem. For example, M-step look ahead technique and Minimized method are typical high speed algorithms. In this paper, we designed a bit-level ACSU(K=3, R=1/2, 4bit soft decision) based on those algorithms and switched the matrix product order in the backward direction of Minimized method so as to apply Code-Optimized-Array in order to reduce the area complexity. For experimentation, we synthesized our design by using SYNOPSYS Design compiler, with TSMC 0.18 um library, and verified the timing by using CADENCE verilog-XL.

• Journal of Industrial Technology
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• v.29 no.A
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• pp.169-176
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• 2009

The gene encoding endoxylanase (xylS) was isolated from a genomic library of Bacillus licheniformis NBL420. Two positive clones, which harbor 1.5 kb and 0.8 kb inserts respectively, were screened on RBB dyed-xylan plates and the recombinant plasmids were named as pBX3 and pBX5. The nucleotide sequencings of two inserts revealed the existence of common 639 bp of open reading frame which encode 232 amino acids. The xylS gene was successfully subcloned into pET22b(+) vector and overexpressed. Enzymatic properties including optimum pH, optimum temp, thermostability and pH stability were investigated. Activity staining of XylS was identical with that of original Bacillus licheniformis NBL420.

• The Bulletin of The Korean Astronomical Society
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• v.36 no.1
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• pp.70.2-70.2
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• 2011

Ultra-high energy cosmic rays(UHECRs) refer cosmic rays with energy above 1018eV. UHECR experiments have employed air shower simulations to quantify the properties of cosmic rays. Using COSMOS and CORSIKA, we have produced a library of over 15000 thinned extensive air shower(EAS) simulations with the primary energies ranging from 1018.5eV to 1020eV and the zenith angle of primary cosmic ray particles from 0 to 45 for proton and iron primaries. We have compared the results from CORSIKA and COSMOS. The comparison has shown perceptible differences in the ground distributions, longitudinal distributions, Calorimetric energy, and Xmax distributions. We have also measured the detector response evaluated using GEANT4 simulations. Here, we discuss S(800), i.e. the signal at a distance of 800 m from the shower core, as the primary energy estimator and present the lateral distribution function(LDF) with S(800).

• The Korean Journal of Zoology
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• v.35 no.3
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• pp.287-294
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• 1992

배양 중의 골격근 세포는 증식을 거쳐 세포융합을 통해 다핵세포로 분화되므로 세포분화의 연구에 좋은 모델로서 이용되고 있다. 이전 실험에서 근원세포 융합을 억제하는 단일클론항체(MII-3J31)가 제작되었으며(Kim et al., 1992)이 항체에 대한 항원은 분자량이 약 35 kDa인 세포막 단백질로 추정되었다. 본 실험에서는 13일 계배와 성체의 근섬유 mRNA에서 CDNA라이브러리를 제작하여 근원세포 분화에 특이적으로 나타나는 유전자를 추적하였다. 근원세포 융합에 관여하는 단백질에 대한 CDNA는 계배 13일 째의 근원세포 CDNA라이브러리에서 단일클론항체를 사용한 immunoscreening 방법을 이용하여 확인하였다. 이 CDNA의 크기는 약 1.5 kb였다. 한편 13일 계배와성체 근섬유 CDNA 라이브러 리를 이용하여 13일 계배에만 특이하게 유전자 발현 이 일어 나고 성체에서는 나타나지 않는 약 0.8 kb의 CDNA플 찾았다.

• Bulletin of the Korean Chemical Society
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• v.14 no.2
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• pp.250-255
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• 1993

A dual capillary column system is described for the simultaneous analysis of a given sample and measurement of retention index (RI) and area ratio (AR) values of each peak on two capillary columns of different polarity, DB-5 & DB-1701 from a single injection. Both capillary columns were connected to either a splitless injector or an on-column injector via a deactivated fused-silica capillary tubing of 1 m length and a 'Y' splitter. Both injection modes allowed to measure RI and AR values with high reproducibility (<0.01% RSD) and high accuracy (<10% RE), respectively with the exception that the trace and high boiling solutes required the on-column mode for the accurate quantification and AR comparison. When the dual capillary column system in on-column injection mode was applied to the blind samples containing organic acids, each acid was positively indentified by the combined computer RI library search-AR comparison.

• Journal of the Semiconductor & Display Technology
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• v.22 no.1
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• pp.39-42
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• 2023

Recently, with the explosive increase of video streaming services, real-time live broadcasting has also increased, which leads to an infringement problem for user privacy. So, to solve such problems, we proposed the real image blurring system using dlib face-recognition library. 68 face landmarks are extracted and convert into 128 vector values. After that the proposed system tries to compare this value with the image in the database, and if it is over 0.45, it is considered as different person and image blurring processing is performed. With the proposed system, it is possible to solve the problem of user privacy infringement, and also to be utilized to detect the specific person. Through experimental results, the proposed system has an accuracy of more than 90% in terms of face recognition.

• International Journal of Knowledge Content Development & Technology
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• v.13 no.3
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• pp.31-45
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• 2023

This study aims to understand the characteristics of Asian OA journals and to identify differences by the countries. 3,103 DOAJ-registered OA journals from 21 Asian countries as of 2020 were selected and analyzed from various perspectives using correspondence and correlation analysis. The results revealed that Indonesia had the most DOAJ-registered open access journals, followed by Iran and India. An APC was not charged by 70% of journals, but this varied greatly by country. Meanwhile, as a result of comparing DOAJ-registered Asian journals with international citation database listed journals, 11% of journals were listed on Scopus and only 2.6% and 0.1% were listed on SCIE and SSCI, which is represents less than half of the global level. In addition, although there are many free to read local journals in China, Japan, and Korea, the number of OA journals registered in DOAJ is relatively small. Therefore, it is difficult to say that the progress of OA in local journals is fast even if the country's global research competitiveness is high.

• Nutrition Research and Practice
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• v.13 no.5
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• pp.399-409
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• 2019

BACKGROUND/OBJECTIVES: This study was designed to provide scientific evidence on the effectiveness of worksite-based dietary intervention to reduce obesity among overweight/obese employees. MATERIALS/METHODS: Electronic search was performed using Ovid Medline, Embase, Cochrane Library, and CINAHL databases. The keywords used were "obesity," "nutrition therapy," and "worksite." The internal validity of the randomized controlled trials (RCTs) was assessed using the Cochrane's Risk of Bias. Meta-analysis of selected studies was performed using Review Manager 5.3. RESULTS: A total of seven RCTs with 2,854 participants were identified. The effectiveness of dietary interventions was analyzed in terms of changes in weight, body mass index (BMI), total cholesterol, and blood pressure. The results showed that weight decreased with weighted mean difference (WMD) of -4.37 (95% confidence interval (CI): -6.54 to -2.20), but the effectiveness was statistically significant only in short-term programs < 6 months (P = 0.001). BMI also decreased with WMD of -1.26 (95% CI: -1.98 to -0.55), but the effectiveness was statistically significant only in short-term programs < 6 months (P = 0.001). Total cholesterol decreased with WMD of -5.57 (95% CI: -9.07 to -2.07) mg/dL, demonstrating significant effectiveness (P = 0.002). Both systolic (WMD: -4.90 mmHg) and diastolic (WMD: -2.88 mmHg) blood pressure decreased, demonstrating effectiveness, but with no statistical significance. CONCLUSIONS: The worksite-based dietary interventions for overweight/obese employees showed modest short-term effects. These interventions can be considered successful because weight loss was below approximately 5-10 kg of the initial body weight, which is the threshold for the management of obesity recommended by the Scottish Intercollegiate Guideline Network (SIGN).

• Journal of Korean Medicine Rehabilitation
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• v.34 no.1
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• pp.83-95
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• 2024

Objectives This review was conducted to evaluate the therapeutic effects of manual acupuncture (MA) for shoulder impingement syndrome (SIS). Methods We searched 12 electronic databases (DBpia, Korean studies Information Service System [KISS], Oriental Medicine Advanced Searching Integrated System [OASIS], Research Information Sharing Service [RISS], China National Knowledge Infrastructure [CNKI], CINAHL, Clinical Key, Cochrane Library, Embase, JAMA, PubMed, Web of Science) to find randomized-controlled clinical trials (RCTs) investigating therapeutic effects of MA for treating SIS. Shoulder Pain and Disability Index scores and numeric pain rating scale or visual analogue scale were analyzed as the main evaluation criteria. Results Among 181 studies, 169 were screened and only 12 RCTs were eligible in our review. Finally, 11 RCTs could be statistically analyzed. MA was more effective than sham treatment and physical therapy in terms of reducing pain (p=0.003, p=0.0007 each). Electroacupuncture (EA) showed more significant effect than physical therapy (PT) for improving shoulder pain (p<0.00001) and shoulder functionality (p<0.00001). Conclusions These results suggest that MA and EA could be superior option for treating SIS than sham treatment or PT. However this review has its limitations due to the small sample size and lack of well-designed RCTs that were included in the study. Further well-designed RCTs are necessary to provide high-level evidence.