• 제목/요약/키워드: Receptacle

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A new cyclopoid copepod from Korean subterranean waters reveals an interesting connection with the Central Asian fauna (Crustacea: Copepoda: Cyclopoida)

  • Karanovic, Tomislav;Yoo, Hyunsu;Lee, Wonchoel
    • Journal of Species Research
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    • 제1권2호
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    • pp.156-174
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    • 2012
  • Monchenkocyclops gen. nov. was erected to accommodate M. changi sp. nov. from South Korea (type species), M. mirabdullayevi sp. nov. from Kazakhstan, M. biarticulatus (Monchenko, 1972) comb. nov. from Uzbekistan, and M. biwensis (Ishida, 2005) comb. nov. from Japan. The latter species was originally described from surface-water habitats of the ancient Lake Biwa in the genus Diacyclops Kiefer, 1927, while two Central Asian species were previously collected from groundwater habitats and assigned to the genus Acanthocyclops Kiefer, 1927. Monchenkocyclops changi is also found in subterranean waters, and described here in detail. It is morphologically most similar to its Uzbek congener (not to the Japanese one), which rises some interesting zoogeographical questions about the disjunct distribution of this genus. Range fragmentation is a more plausible explanation for this distribution pattern than range expansion, and we emphasize four lines of evidence that support this hypothesis. Four species of Monchenkocyclops share not only the same segmentation of the swimming legs, but also the exact same armature formula of all swimming legs, in addition to many other morphological characters, such as the caudal rami shape and armature, absence of exopod on the antenna, similar shape of the seminal receptacle, fifth leg, etc. They can be distinguished mostly by the relative length of different armature elements, such as the innermost terminal caudal setae, and inner setae and apical spines on the third endopodal segment of the fourth leg. A dichotomous key to species is provided.

A case of Moniliformis moniliformis (Acanthocephala) infection in Iran

  • Berenji, Fariba;Fata, Abdolmajid;Hosseininejad, Zahra
    • Parasites, Hosts and Diseases
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    • 제45권2호
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    • pp.145-148
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    • 2007
  • Only a few cases of Acanthocephala infections have been reported in humans, and Moniliformis moniliformis is the most common species around the world. We report here a case of infection with M. moniliformis, which passed in the stool of a 2-year-old girl in Iran. The patient had abdominal pain, diarrhea, vomiting, and facial edema. According to her mother, the patient had habit of eating dirt and once a cockroach was discovered in her mouth. In stool examination, eggs of M. moniliformis were not found. She was treated with levamisole and the clinical symptoms reduced within 2 weeks. The specimen contained 2 pieces of a female worm with a total length of 148 mm lacking the posterior end. The spiral musculature of the proboscis receptacle and the shape of the trunk allowed its generic determination. Previously 2 cases of M. moniliformis infection were reported in Iran. This is the 3rd case of M. moniliformis infection in Iran.

전기콘센트의 사용환경과 전류값에 따른 열적특성 및 절연저항 분석 (Analysis of Thermal Characteristics and Insulation Resistance based on Usage Environment and Current Value of Electrical Socket Outlet)

  • 김경천;김두현;김성철
    • 한국안전학회지
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    • 제34권5호
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    • pp.22-30
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    • 2019
  • In 2018, overload, overcurrent, insulation aging, and a contact failure caused 659 electric fires. There is almost no failure of electrical socket outlets during their manufacturing or installation period. After several months or several years, overload or overcurrent of electrical socket outlets leads to a contact failure or short circuit which causes an electric fire. Therefore, this paper analyzed for thermal characteristics based on a current value and the change in insulation resistance along with a temperature rise caused by electrical socket outlets and the state of laboratory use in workplaces. As a results, regarding the thermal characteristics based on the current value of each installation year, a temperature increase was related to a current value, an installation year, and whether the contact unit is corroded. Insulation resistance began to decrease when a temperature increased to a certain level. With a lapse of installation year, the temperature at which insulation resistance began to decrease was lowered. This paper can be applicable for the survey data about electrical socket outlet induced fire accidents and management guidelines.

The Impact of Social Capital on Consumer Attitudinal Evaluations: An Empirical Study in Pakistan

  • CHAI, Zhengmeng;MALIK, Muhammad;HUSSAIN, Salamat;ABBAS, Sher;ALI, Najabat;ABBAS, Zaheer;MUNAWAR, Nousheen
    • The Journal of Asian Finance, Economics and Business
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    • 제9권3호
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    • pp.149-157
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    • 2022
  • The primary goal of this study is to investigate the impact of social capital on consumer attitudinal evaluations. We propose a hypothetical receptacle, thereby applying a mediation framework because of social capital. We expect that increasing social capital would improve brand image and consumer-company (C-C) identification, resulting in positive in-role and extra-role customer behavior toward the brand. Data was collected from 425 respondents primarily from Karachi's five zones (East, West, North, South, and Central) and analyzed using confirmatory component analysis and structural equation design. The findings showed that social capital had a positive and significant relationship with customer extra-role behavior, as well as two mediators, brand image and consumer business identity. Furthermore, both mediators have a significant impact on both in-role and extra-role behavior. However, there is no evidence that social capital has a direct impact on in-role behavior. This study will help businesses in gaining a competitive advantage by concentrating on social capital to improve their brand image and customer relationship.

Organ-specific antigens of Clonorchis sinensis

  • Li, Shun-Yu;Chung, Byung-Suk;Choi, Min-Ho;Hong, Sung-Tae
    • Parasites, Hosts and Diseases
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    • 제42권4호
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    • pp.169-174
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    • 2004
  • This study was carried out to find out specific proteins from different organs of Clonorchis sinensis. Crude extract, organ-specific and excretory-secretory (ES) proteins were analyzed by immunoblot with infected human sera. The bands of 7- and 17 -kDa were main component of intestinal fluid and ES protein and commonly found in all organ-specific proteins. The 17-kDa protein was observed from ES antigen, intestinal fluid, eggs and sperms, 26- and 28-kDa proteins were from the uterus, vitellaria, and ovary, and 34-, 37-, 43- and 50-kDa proteins were mainly from the testis and sperms. Serum of mice immunized with sperms reacted to the 50-kDa protein by immunoblotting and immunohistochemical staining showed a positive reaction at the seminal receptacle and seminiferous tubule. The present results show that the 7-kDa protein is a common antigen of every part or organ of C. sinensis, but different organs express their specific antigenic protein bands.

치과의료기관의 특성에 따른 감염관리실태 -대구, 경북지역을 중심으로- (Infection Control practices in accordance characteristic of Dental institutions -Daegu and North Gyeongsang Province around-)

  • 성미애;윤성욱
    • 디지털융복합연구
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    • 제16권5호
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    • pp.299-307
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    • 2018
  • 본 연구는 치과의료기관의 감염관리실태의 규명과 감염예방을 위해 대구, 경북지역 2012년, 2017년 2개 년도 동일한 114개의 치과의료기관의 특성에 따른 감염관리실태와 오폐수처리 및 기구소독을 설문조사하였다. 감염관리실태 8문항 평균 3.37이며 '환자의 질병병력 기록'은 95.5%로 높고 '오폐수시설이 있는 경우' 1.8%로 낮았다. 오폐수처리 및 기구소독의 9항목 평균 4.87이며 '메탈트레이 소독' 94.7%로 높고, '타구통 폐기물을 폐기물통에 보관 후 위탁처리' 17.5%, '로 낮았다. 일반적인 특징과 치과의료기관 특성에 따른 감염관리실태와 오폐수처리 및 기구소독은 2012년보다 2017년이 높았으며, 치과위생사, 대학졸업이상, 환자상담 및 관리, 병원급 이상, 치과의사 수(치과위생사 수, 체어 수, 환자 수)는 많은 경우 높았다. 총괄적으로 치과 특성을 고려하여 감염관리를 하여야 할 것이며 병원규모와 관계없이 지속적인 교육과 홍보를 필요할 것으로 사료된다.

부착면 표면물질에 의한 성능 왜곡을 최소화한 이중 선로의 비대칭 다이폴 형태 태그 안테나 설계 (Design of a Tag Antenna with a Low Performance Distortion from an Attached Surface Material Using the Asymmetric Dual-Arm Dipole Structure)

  • 김도균;추호성
    • 한국전자파학회논문지
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    • 제18권4호
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    • pp.398-407
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    • 2007
  • 본 논문에서는 부착될 물질이 가지는 전기적 특성에 의한 성능 변화가 적은 이중 선로의 비대칭 다이폴 형태 RFID 용도 태그 안테나(Asymmetric Dual-arm Dipole Antenna: ADDA)를 제안하였다. 제안된 태그 안테나는 상용 의료 폐기물 수거용 플라스틱 밀폐 용기(${\varepsilon}_r=1.7,\;tan\;{\delta}=0.002$)에 부착하여도 안테나의 동작 특성 변화가 적도록 설계되었다. 안테나의 세부적인 설계변수는 자유공간과 인식 대상 물체에 부착시 우수한 인식거리 성능을 나타내도록 Pareto 유전자 알고리즘을 사용하여 최적화하였다. 최적화 태그 안테나는 $100\;mm{\times}50\;mm$의 크기를 가지며, 3.7 %의 반사 손실 대역폭($S_{11}$< -10 dB)을 가지고 80 %의 복사효율을 나타내었다. 인식 거리 측정 결과, 자유공간에서 정면 방향(broadside) 5.3 m, 의료 폐기물 수거용 플라스틱 밀폐 용기에 부착시 최대 5.5 m의 인식거리 성능을 가지는 것을 확인하였다.

간흡충의 미세구조에 관한 연구 V. 정자의 미세구조 (A Study on the Fine Structure of Clonorchis sinensis, a Liver Fluke V. The Mature Spermatozoa)

  • 정계환;임한종
    • Parasites, Hosts and Diseases
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    • 제22권1호
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    • pp.30-36
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    • 1984
  • An ultrastructural study on the mature spermatoBoa oi Cloptorchis sineitsis was carried out. For this study, the liver cukes were collected from the livers of rabbits and rats artificially infected with the metacercariae obtained from the fresh water fish, Pseudorasbora parve. Six-month old worms were used. The collected liver fiukes were washed with 0.85% saline solution and then immediately moved to cold 2% glutaraldehyde buffered with 0.1M Millonig's phosphate buffier (pH 7.4) . The materials were dissected into appropriate pieces in the fixative about 30 minutes after beginning of the fixation. Two hours later the materials containing the seminal receptacle were rinsed several times with the buffier and were secondarily fixed with cold, bugeyed 1% osmium tetroxide(OsO4) for 2 hours. The fully mixed tissue blocks Ivere dehydrated in a series of graded concentrations of acetone and were embedded in Epon 812 mixture. Thin sections obtained from LKB-5 ultramicrotome were stained with uranyl acetate and Reynold's lead citrate. Observations of the sections were carried out with JEM-100CX II electron microscope, In general, the mature sperm was long thread-like form with a sickle-shaped head. According to the longitudinal sectioned view of the sperm tail, the nucleus seemed to be spirally coiled and run a little far along the tail. The acrosome was not observed. The cytoplasm of the tail was biflagellated as usual in trematodes. Unlike other platyhelminth spermatozoa, the sperm tail of Clenorchis sinensis showed the ${\ulcorner}9+2{\lrcorner}$ in the microtubular arrangement. The mitochondria with poorly developed cristae were observed throughout the middle piece. The middle piece of the tail showed dull ladder or triangular shapes with the two flagella at the bottom. But, the principal piece of the tail was slightly flattened cylindrical shape with two aagella within the cytoplasm. The end piece was uniflagellated. It was not clearly identised whether the end piece was subdivided into two by aagellum or the lengths of the two aagella were different. The glycogen granules were rich in the cytoplasm throughout the lenght of the spermatozoa. These granules might be the energy source for the movement of the spermatosoa.

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해수유동모델의 3차원 가시화를 위한 GUI 구축 (GUI construction for 3D visualization of ocean hydrodynamic models)

  • 이원찬;박성은;홍석진;오현택;정래홍;구준호
    • 해양환경안전학회:학술대회논문집
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    • 해양환경안전학회 2006년도 추계학술발표회
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    • pp.213-215
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    • 2006
  • 해수유통모델 결과를 3차원적으로 가시화하기 위한 그래픽 유저 인터페이스를 지리정보시스템 (GIS) 기술을 활용하여 구축하였다. 연안역 관리에서 GIS기법은 산재되어 있는 방대한 자료들을 저장하고 이를 3 차원으로 가사화하는 기능을 제공하며 해석적, 통계적, 모델링 도구로써 주어진 상황에 적합한 데이터 변환이 가능하도록 해준다. 해수유동모델은 개방경제에서 조석, 바람, 수온, 염분, 장물 유업 및 태양복사 등 과 같은 모델입력값을 부여함으로써 구동되며 대상해역은 진해만으로 하였다. 본 연구에서는 국산 GIS 소프트웨어인 GeoMania (v2.5)를 사용하여 진해만을 대상으로 시뮬레이션된 해수유통모델 결과의 3차원 가시화 모듈을 구축하였다.

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해수유동모델 결과의 3차원 가시화를 위한 GUI 구현 (GUI Implementation for 3D Visualization of Ocean Hydrodynamic Models)

  • 최우정;박성은;이원찬;구준호;서영상;김태현
    • 한국지리정보학회지
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    • 제7권3호
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    • pp.99-107
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    • 2004
  • 해수유동모델 결과를 3차원적으로 가시화하기 위한 그래픽 유저 인터페이스를 구축하는 과정에서 지리정보시스템(GIS) 기술을 활용하였다. 연안역 관리에서 GIS 기법은 산재되어 있는 방대한 자료들을 저장하고 이를 3차원으로 가시화하는 기능을 제공하며 해석적, 통계적, 모델링 도구로써 주어진 상황에 적합한 데이터 변환이 가능하도록 해준다. 해수유동모델은 개방경계에서 조석, 바람, 수온, 염분, 강물 유입 및 태양복사 등과 같은 모델입력값을 부여함으로써 구동되며 대상해역은 진해만으로 하였다. 본 연구에서는 국산 GIS 소프트웨어인 GeoMania (v2.5)를 사용하여 진해만을 대상으로 시뮬레이션된 해수유동모델 결과의 3차원 가시화 모듈을 구축하였다.

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