• Title/Summary/Keyword: intercepted

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A List of Mealybugs (Hemiptera: Pseudococcidae) Intercepted at the Republic of Korea Ports of Entry on Plants Imported from China (중국산 수입 묘목류에서 검출된 가루깍지벌레과(노린재목))

  • Ji, Jung-Youn;San-an, Wu;Suh, Soo-Jung
    • Korean journal of applied entomology
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    • v.49 no.2
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    • pp.163-166
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    • 2010
  • Thirteen species of mealybugs were intercepted in quarantine at Korean ports of entry on plant materials from China over the past 9 years (2000-2009). Of these, Phenacoccus madeirensis Green has been newly reported in China through this study. This list and key are provided to assist in identifying intercepted specimens of mealybugs from China.

List of Intercepted Scale Insects at Korean Ports of Entry and Potential Invasive Species of Scale Insects to Korea (Hemiptera: Coccoidea) (우리나라 입항지에서 검출된 깍지벌레 목록 및 침입이 우려되는 깍지벌레(노린재목, 깍지벌레상과))

  • Suh, Soo-Jung;Yu, Hye Mi;Hong, Ki-Jeong
    • Korean journal of applied entomology
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    • v.52 no.2
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    • pp.141-160
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    • 2013
  • An updated list is given of 113 species of scale insects which have been intercepted on plants imported into Korea during the period of 2007 to 2011. Information on the number of interceptions, origin, host plants and distribution of species intercepted at Korean ports of entry is provided. In addition, data on intercepted species was analyzed to determine potential invasive species of scale insects that could threaten Korean plants.

A Kill-Assessment Technique Using Hypothesis Testing and Kalman Filter (가설 검증과 칼만 필터를 이용한 격추평가 기법 연구)

  • Kim, Ho-Jeong;Lee, Dong-Gwan
    • Journal of the Korea Institute of Military Science and Technology
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    • v.9 no.4
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    • pp.5-14
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    • 2006
  • The correct and opportune decision of reengaging the intercepted target is required in order to enhance the engagement performance of the surface to air missile systems that has the ability to defense or attack against various targets at the same time. The engagement efficiency and success of these systems will be largely enhanced by assigning quickly its system resources to the intercepted target and minimizing the waste of system resources for the target which is not able to attack any more. The kill-assessment algorithm has to be able to evaluate automatically whether various targets intercepted by missiles are killed or not on the basis of the reasonable confidence level. The definition of kill assessment is discussed and the kill assessment algorithm is designed reliably by using Kalman filter and a probability theory. Finally its performance is evaluated and analyzed by the Monte Carlo simulation.

Scolytidae, Platypodidae, Bostrichidae and Lyctidae Intercepted from Imported Timbers at Busan Port Entry (부산항의 수입재에서 검출된 나무좀과, 긴나무좀과, 개나무좀과 및 가루나무좀과의 종류)

  • 최은정;추호렬;이동운;이상명;박종균
    • Korean journal of applied entomology
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    • v.42 no.3
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    • pp.173-184
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    • 2003
  • Beetles belonging to the families Scolytidae, Platypodidae, Bostrichidae, and Lyctidae intercepted from imported timbers at Busan port were investigated from March 1 to November 30 in 2000. In addition, hosts imported country were examined. A total of 52 species of within 23 genera was intercepted from nineteen species of timbers or logs from fifteen countries. In Scolytidae, 35 species of 16 genera in three subfamilies were identified 12 species in Xyleborus, 6 species in Ips, 3 species in Trypodendron, 2 species in Arixyleborus, and 12 species of all different genera including Alinphagous. Scolytidae were intercepted from 16 species of timbers in 13 genera imported from 11 countries. The highest beetles were intercepted from Malaysian lauan. In Platypodidae, 9 species of one genus (Platypus) were intercepted from 6 species of timbers in 4 genera imported from 6 countries including Australia. The highest numbers were intercepted from Malysian lauan. In Bostrychidae, 5 species of 4 genera in two subfamilies were intercepted from 6 species of timbers in 4 genera imported from four countries. In Lyctidae, Trogoxylon sp., Minthea sp., and Minthea rugicollis were intercepted from 3 species of timbers in 2 genera imported from 3 countries.

Identification of Three Fungi Newly Intercepted from Importing Plants in Korea

  • Hyun, Ik-Hwa;Heo, Noh-Yeoul;Chang, Seo-Yeon;Heo, Jong-Young;Mel'nik, Vadim
    • Mycobiology
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    • v.33 no.4
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    • pp.243-244
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    • 2005
  • Three fungi newly intercepted from importing plants were identified in 2004. They were Ascochyta chrysanthemi on Lactuca sativa from China, A. spinaciicola on Spinacia oleracea from Denmark, and Leptosphaerulina australis on Brassica oleracea var. capitata from China. The characters of these fungi were described and illustrated.

Classification of the Bostrichidae Intercepted from Imported Timbers II. (수입재해충 나무좀류의 분류 II 개나무좀과)

  • Choo H.Y.;Woo K.S.;Lee C.K.
    • Korean journal of applied entomology
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    • v.22 no.1 s.54
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    • pp.30-34
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    • 1983
  • Authors identified following seven species of six genera of Dinoderinae and Bostrichinae of Bostrichidae intercepted from imported logs. Keys and descriptions are given for the seven species. The distribution of each species is outlined Dinoderinae: Rizopertha dominica (Fabricius) Dinoderus minutus (Fabricius) Bostrichinae: Sinoxylon anale Lesne S. japonicum Lesne Heterobostrychus hamatipennis (Lesne) Xylothrips flavipes (Illiger) Xylopsocus castanopterus (Fairmair).

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A Two-Step Screening Algorithm to Solve Linear Error Equations for Blind Identification of Block Codes Based on Binary Galois Field

  • Liu, Qian;Zhang, Hao;Yu, Peidong;Wang, Gang;Qiu, Zhaoyang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.15 no.9
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    • pp.3458-3481
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    • 2021
  • Existing methods for blind identification of linear block codes without a candidate set are mainly built on the Gauss elimination process. However, the fault tolerance will fall short when the intercepted bit error rate (BER) is too high. To address this issue, we apply the reverse algebra approach and propose a novel "two-step-screening" algorithm by solving the linear error equations on the binary Galois field, or GF(2). In the first step, a recursive matrix partition is implemented to solve the system linear error equations where the coefficient matrix is constructed by the full codewords which come from the intercepted noisy bitstream. This process is repeated to derive all those possible parity-checks. In the second step, a check matrix constructed by the intercepted codewords is applied to find the correct parity-checks out of all possible parity-checks solutions. This novel "two-step-screening" algorithm can be used in different codes like Hamming codes, BCH codes, LDPC codes, and quasi-cyclic LDPC codes. The simulation results have shown that it can highly improve the fault tolerance ability compared to the existing Gauss elimination process-based algorithms.

Identification of Root-lesion Nematode (Pratylenchidae: Pratylenchus ) Intercepted on Imported Plants (수입식물에서 검출된 뿌리썩이선충(뿌리썩이선충과: 뿌리썩이선충속)의 진단)

  • Kim, Dongwoo;Chun, Jae-Yong
    • Korean journal of applied entomology
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    • v.53 no.1
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    • pp.51-57
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    • 2014
  • We identified the five root-lesion nematode species, Pratylenchus crenatus, P. fallax, P. kumamotoensis, P. panamaensis and P. penetrans from intercepted in quarantine inspection over the past five years. Their diagnostic characters are including number of lip annuli, stylet length, shape of the labial region, presence or absence of males, structure of lateral fields, shape of spermatheca, length of the post-vulval uterine sac and shape of tail and so forth. We described the photos, measurements and morphological characters.

Navel Orangeworm (Lepidoptera: Pyralidae) Intercepted on Fresh Oranges from the USA at the Korean Port of Entry (미국산 오렌지 생과실에서 검출된 Navel Orangeworm (나비목: 명나방과))

  • Hong, Ki-Jeong;Hong, Seong-Wook;Ryu, Chang-Seok;Lee, Yong-Hyun
    • Korean journal of applied entomology
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    • v.51 no.3
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    • pp.295-297
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    • 2012
  • Navel orangeworm, Amyelois transitella (Walker) was intercepted at the Korean port of entry. It was detected by an inspection for a consignment of fresh oranges from the USA by the Busan Newport District Office, Yeongnam regional office, Animal Plant and Fisheries Quarantine and Inspection Agency on January 31, 2012. This is the first time that the larvae of this pest species has been detected on fresh oranges, although it has been occasionally detected on walnuts. This report aims to ensure biosecurity by providing diagnostic characters to identify the caterpillars and conducting an imported risk analysis on fresh oranges from the USA.

Analysis of Intercepted Flow according to Change of Flow Width in Gutter (도로 흐름폭 변화에 따른 차집유량 분석)

  • Joo, Dong Won;Kim, Jung Soo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.41 no.4
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    • pp.377-386
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    • 2021
  • In dense cities, which are covered by many impermeable areas, rainwater flows quickly along the roads and collects in certain areas. The surface runoff that fails to get intercepted by the roadside rain gutters results in a wider flow of water along the sides, which in turn increases the amount of water on the road and causes traffic congestion as well as accidents due to slippage. Based on these issues, this study was carried out in order to propose an intercepted flow calculation formula. To this end, the maximum longitudinal slopes of arterial roads and expressways were reflected to depict a road condition of 2~10 %, while a general traverse slope of 2 % was selected for the traverse slope on the side. As for the road lane condition, two, three, and four lanes were chosen for the area from the centerline to the sidewalk. As for the experimental flow rate, the rainwater runoffs at the actual design frequency of 5, 10, 20, and 30 years for road conditions were converted into experimental flow rates, and as a result, flow rates ranging from 1.36 l/s to 3.96 l/s were divided into ten flow rates for a hydraulic experiment. Also, an equation taking into consideration the inflow velocity and flow width along the roadsides was proposed. The results of the experiment showed an increase in flow width and a decrease in interception rate. Also, the inflow velocity at a traverse slope of 2 % was measured, while increasing the longitudinal slope. Accordingly, an equation for calculating the flow intercepted by rain gutters at a flow width reflecting the longitudinal slope of the road and rainwater runoff, according to the design frequency, was derived by performing a regression analysis using IBM SPSS Statistics 24. It is deemed that the equation derived in this study will be useful in designing rain gutters for roads.