• Title/Summary/Keyword: five delay

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A New Construction of the Irreducible Polynomial for parallel multiplier over GF(2$^{m}$ ) (GF(2$^{m}$ )상에서 병렬 승산기에 대한 기약다항식의 새로운 구성)

  • 문경제;황종학;박승용;김흥수
    • Proceedings of the IEEK Conference
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    • 2003.07c
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    • pp.2617-2620
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    • 2003
  • This paper presents the construction algorithm of the irreducible polynomial which needs to multiply over GF(2$\^$m/) and the flow chart representing the proposed algorithm has been proposed. And also, we get the degree from the value of xm+k formation to the value of k = 7 using the proposed flow chart. The multiplier circuit has been implemented by using the proposed irreducible polynomial generation(IPG) algorithm in this paper, and we compared the proposed circuit with the conventional one. In the case of k = 7, one AND gate and five Ex-or gates are needed as the delay time for the irreducible polynomial in the proposed algorithm, but seven AND gates and sever Ex-or gates in the conventional one. As a result, the proposed algorithm shows the improved performance on the delay time.

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A Study on Systematic Development of Military Logistic Support System to Improve the Operational Availability for Underwater Guided Weapon (수중유도무기의 운용가용도 향상을 위한 군수지원시스템의 체계적 개발에 관한 연구)

  • Shin, Ju-Hwan;Yun, Won-Young
    • Journal of Korean Society for Quality Management
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    • v.33 no.4
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    • pp.75-87
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    • 2005
  • Generally speaking, weapon system is defined as a combination of primary system and support system which are evaluated by capability and operational availability respectively. Recently comparison of total life cycle cost shows that logistic support system is proved to be more important than primary system. However, until now systematic approach to support system development has not been applied in the area of developing support system. We need to construct a universal metric for effectiveness of logistic support system and to cut out whatever activities or support elements which do not contribute to the metric. This paper describes a new approach based on system engineering approach to logistic support system and also classifies five factors of failure, stock-out frequency, administrative delay time, active repair time and logistic delay time that have influence on operational availability of logistic support system.

Modeling and Simulation of Master-driven TDD Wireless Communication Systems

  • Lee, Tae-Jin
    • Proceedings of the Korea Society for Simulation Conference
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    • 2001.10a
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    • pp.459-463
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    • 2001
  • We model and simulate master-driven TDD wireless communication systems, e.g., Bluetooth systems. We model the Bluetooth system and use the BONeS simulation tool to conduct event-drivers simulations. In order to support more than seven slave devices in a piconet, a park mode is considered and modeled. We evaluate the performance, i.e., throughput and delay, using simulations when multi-connections (bath ACL and SCO connections) are present in a piconet. We show that the data rate of ACL connections may be less than 20 kbps when SCO connection(s) and more than six ACL connections are jointly supported in a piconet. In addition, if up to five ACL connections are supported, the average delay is shown to be maintained less than 20 msec. Our results can serve as a guideline to the design of master-driven TDD wireless communication systems with performance requirements.

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Sociodemographic Predictors of Recall and Recognition of Colorectal Cancer Symptoms and Anticipated Delay in Help-Seeking in a Multiethnic Asian Population

  • Loh, Kwong Weng;Majid, Hazreen Abdul;Dahlui, Maznah;Roslani, April Camilla;Su, Tin Tin
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3799-3804
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    • 2013
  • Background: Colorectal cancer is the second most common cancer in Malaysia. The prognosis of the disease is excellent if detected at an early stage, but the majority of Malaysian patients present at late stages. We aimed to assess the awareness of cancer warning signs and anticipated delay in help-seeking as possible contributors to this phenomenon. Materials and Methods: A population-based cross-sectional survey using the Colorectal Cancer Awareness Measure was initiated in Perak, Malaysia. A total of 2,379 respondents aged 18 years and above were recruited using a multi-stage sampling in five locations. Analysis of covariance was used to examine independent sociodemographic predictors of scores for symptom awareness. Results: Younger age, being female, a higher education, and higher income were significantly associated with better scores for both recall and recognition of warning symptoms. Among the ethnic groups, Malays had better recognition of symptoms whereas Chinese recalled the most symptoms. Passing bloody stool was associated with the least anticipated delay and unexplained anal pain had the highest anticipated delay. Conclusions: The level of awareness across all ethnicities in Malaysia is generally low, especially among minorities. Targeted public education, which is culturally and linguistically appropriate, should be developed to encourage early help-seeking and improve clinical outcomes.

Improved methods for measuring early reflections from Five-channel room impulse response using newly introduced Peak-Detecting algorithm

  • Kim Lae-Hoon;Doo Sejin;Oh Yangki;Lee Heewon;Sung Koeng-Mo
    • Proceedings of the Acoustical Society of Korea Conference
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    • spring
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    • pp.439-442
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    • 2000
  • When we measure the acoustical properties of a room using multiple microphone system, it is important to grasp exact time delay of the early reflections from impulse response pair. But it is often very difficult to identify the early reflections in natural shape, because a waveform may be deformed due to the characteristics of a sound source loudspeaker, microphone and reflected wall and overlapping of plural waveform. In this paper to obtain more accurate and enough early reflections, we propose the brand-new five-channel sound receiving system and introduce peak-detecting algorithm. The system has microphones mounted at the origin and four points of a regular tetrahedron. The newly introduced peak-detecting algorithm can show exact peak position in each channel, in spite of deformation due to reflected walls, loudspeaker and microphone.

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Clinical study on 1 case of patient with Rett syndrome (레트 증후군(Rett syndrome) 환자(患者) 1례(例)에 대(對)한 임상적(臨床的) 고찰(考察))

  • Park, Chun-Ha;Yoon, Yeo-Choong
    • Herbal Formula Science
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    • v.9 no.1
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    • pp.405-417
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    • 2001
  • Objective : Rett syndrome is a neurological disorder occurring primarily in girls. By process of treatment for a case which was diagnosed as Rett syndrome and out patient department treatment from the 12th, April, 1999 to November, 2001, the results are as follows. Method & Results : This patient was diagnosed as five-development disorders categories(五遲, 五軟), medicated with Yukmijihwang-tang(Liuweidihwang-tang, 六味地黃湯) and Kyejigayonggolmoryu-tang(Guizhijialonggu-tang, 柱枝加龍骨牡蠣湯). And acupunture therapy was taken on Shinjyungkyuk(shenchongge, 腎正格) and Paekoe(百會 GV 20), Taechu(大椎 GV 14), Renzhong(人中 GV 26). As a result, the patient's hypotonia and intermittent seizures were improved. Conclusion: Rett syndrome is most often misdiagnosed as autism, cerebral palsy or non-specific developmental delay. In oriental medicine, RS can be diagnosed as five development disorders categories (五遲, 五軟) and oriental medication with acupuncture treatment can improve RS patient's conditions.

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An Analysis of Operational Effects of Adjacent Double Roundabouts (쌍구형 회전교차로 도입에 따른 운영효과 연구)

  • Kim, Nohhyun;Kim, Myungsoo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.16 no.6
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    • pp.42-52
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    • 2017
  • This was a study on the ultimate effect and characteristics of introducing a roundabout through a review of literature on the subject of roundabout. In order to examine an effect produced when roundabout is substituted for ordinary signal-controlled intersection operated at Daego Five-way Intersection and Seongmo Five-way Intersection located in Junggu, Daejeon Metropolitan City, site to be studied, the produced effect was analyzed through comparison between before and after introducing roundabouts in series at Daego Five-way Intersection and Seongmo Five-way Intersection by using microscopic traffic simulation program VISSIM widely used for analyzing an effect of roundabout based on a survey of geometric structure, traffic volume and signal interval on the site. As mentioned above, when Daego Five-way Intersection and Seongmo Five-way Intersection was changed to roundabout, a positive effect was produced on average speed and delay time in comparison with the existing status. It is possible to expect that roundabout can be more efficiently operated when 2 places on the site are changed to double roundabout than when separately changed to roundabouts.

Nonparametric Detection Methods against DDoS Attack (비모수적 DDoS 공격 탐지)

  • Lee, J.L.;Hong, C.S.
    • The Korean Journal of Applied Statistics
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    • v.26 no.2
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    • pp.291-305
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    • 2013
  • Collective traffic data (BPS, PPS etc.) for detection against the distributed denial of service attack on network is the time sequencing big data. The algorithm to detect the change point in the big data should be accurate and exceed in detection time and detection capability. In this work, the sliding window and discretization method is used to detect the change point in the big data, and propose five nonparametric test statistics using empirical distribution functions and ranks. With various distribution functions and their parameters, the detection time and capability including the detection delay time and the detection ratio for five test methods are explored and discussed via monte carlo simulation and illustrative examples.

Quality and Physicochemical Characteristics of Mung-Bean Cultivars Cultivated in the North-Central Region with Different Seeding Periods (파종시기에 따른 중북부 지역 재배 녹두 품종의 품질 및 이화학 특성)

  • Woo, Koan Sik;Kim, Sung Kook;Jung, Gun Ho;Kim, Hyun-Joo;Lee, Ji Hae;Lee, Byong Won;Lee, Yu Young;Lee, Byoung Kyu
    • The Korean Journal of Food And Nutrition
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    • v.31 no.5
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    • pp.577-586
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    • 2018
  • The proximate compositions, quality and physicochemical characteristics of mung-bean cultivars cultivated in the north-central region of South Korea with different seeding periods were evaluated. A significant difference was noted in the proximate compositions and chromaticity of mung-beans according to cultivars and different seeding periods. Crude ash and protein content decreased with the delay in seeding period and a slight increase in carbohydrate content was observed. Redness of the other five cultivars increased with the delay in seeding period except for the cultivar Jangan, while the yellowness decreased in cultivars Geumsung and Jangan. Water binding capacity of the $1^{st}$, $2^{nd}$ and $3^{rd}$ seeding on the cultivar Eoul was 115.15, 99.76 and 96.31%, respectively, and a decrease in the binding capacity was observed with the delay in seeding periods. Water solubility index and swelling power were significantly different among cultivars. Total polyphenol content of $1^{st}$ and $2^{nd}$ seeding on the cultivar Jangan was 8.59 and 8.57 mg GAE/g, respectively, and a decrease was observed with the delay in seeding periods except for the cultivar Sohyeon. Total flavonoid content of $1^{st}$ seeding on the cultivar Jangan was 5.25 mg CE/g, which decreased with the delay in seeding periods. DPPH radical scavenging activity of $1^{st}$ seeding on the cultivars Geumsung and Kyungseon was 2.44 and 2.32 mg TE/g, respectively, which decreased with the delay in seeding periods. The BTS radical scavenging activity of $1^{st}$ seeding on the cultivar Jangan was 6.98 mg TE/g. In the present study, the variations in phenol content and radical scavenging activity were observed to be dependent on the cultivars and seeding periods.

An Analysis of the Influence of Container Vehicles on the Signalized Intersection of the Roads at Pusan Port (부산항 배후도로 신호교차점에 있어서 컨테이너 차량의 영향분석)

  • 정헌영;김홍태
    • Journal of Korean Port Research
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    • v.13 no.1
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    • pp.87-100
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    • 1999
  • This study was focused on analyzing the headway of various types of trailer in Pusan city with the high heavy vehicle rate. Then Passenger Car Equivalent(PCE) was calibrated in order to identify the impact of trailers in the traffic flow at the signalized intersections. To fulfill this goal types of trailer were classified into five categories such as full trailer semi-trailer unloaded semi-trailer semi-trailer loaded with 20ft container and semi-trailer loaded with 40ft container and Passenger Car Equivalents were identified. the Results are as follows: 1) The PCE’s were 2.64, 1.51, 2.09, 2.16 and 2.23 respectively. 2) The saturation flow rate on the signalized intersection was lower than that on the multi-lane highway in the big city of Korea. 3) The start-up delay on the thru lane was similar to the average value in our country but the start-up delay on the left-turn lane was longer than the average value in our country by the impact of container Vehicles.

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