• Title/Summary/Keyword: Argentina

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First Record of Paramenophia platysoma (Copepoda: Harpacticoida: Thalestridae) from Korea, with Notes on the Morphology of the Genus

  • Kim, Jong Guk;Choi, Hyun Ki;Yoon, Seong Myeong
    • Animal Systematics, Evolution and Diversity
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    • v.33 no.3
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    • pp.176-188
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    • 2017
  • Paramenophia platysoma (Thompson and Scott, 1903) is newly reported from Korean waters based on the materials collected from several seagrass and algal bed habitats. The Korean materials of P. platysoma in the present study coincide well with the original description of the species with respects to the characteristic features of the first, fourth, and fifth legs, and in most respects to P. platysoma sensu $Gam{\hat{o}}$ (1969) reported from Japan except for the antennary exopod. However, they show some differences to P. platysoma sensu Pallares (1973, 1975) reported in Argentina, in terms of the morphology of the fifth leg in females and the second leg in males. Detailed description and illustrations of P. platysoma are provided for both sexes. The morphological features of Paramenophia species are discussed and a key to the species of genus is provided.

Control of Humanoid Robots Using Time-Delay-Estimation and Fuzzy Logic Systems

  • Ahn, Doo Sung
    • Journal of Drive and Control
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    • v.17 no.1
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    • pp.44-50
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    • 2020
  • For the requirement of accurate tracking control and the safety of physical human-robot interaction, torque control is basically desirable for humanoid robots. Because of the complexity of humanoid robot dynamics, the TDC (time-delay control) is practical because it does not require a dynamic model. However, there occurs a considerable error due to discontinuous non-linearities. To solve this problem, the TDC-FLC (fuzzy logic compensator) is applied to humanoid robots. The applied controller contains three factors: a TDE (time-delay estimation) factor, a desired error dynamic factor, and FLC to suppress the TDE error. The TDC-FLC is easy to execute because it does not require complicated humanoid dynamic calculations and the heuristic fuzzy control rules are intuitive. TDC-FLC is implemented on the whole body of a humanoid, not on biped legs even though it is performed by a virtual humanoid robot. The simulation results show the validity of the TDC-FLC for humanoid robots.

COASTAL ENVIRONMENT MONITORING USING ADJACENT EFFECT OF RADIATION

  • Takashima, Tsutomu;Jung, Sung-Chul;Yi, San-Oh;Kim, Tu-Hwan
    • Proceedings of the KSRS Conference
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    • v.1
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    • pp.430-431
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    • 2006
  • KOMPSAT-2 was successively launched on July 28,06. She carries Fine Spatial Resolution Sensor with three channels. It is 4m monochromatic and 1m panchromatic. The main purposes would derive fine urban map and digital elevation model(DEM).Therefore we extend to coastal environment monitoring using the adjacent effect of radiation due to an interaction of radiation between heterogeneous surface and atmosphere. With data analysis of ASTER on TERA, which is 15m resolution in visible and near infrared wavelengths, we found atmospheric aerosols were always large. Note that data analysis was limited in Nagoya bay, Lake Tahoe, California & La Pozuelos, La Picasa, Argentina. Thus this time we expect data analyses around isolated island and peninsula in west and south coast of Korea.

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CLARIFYING THE PARADIGM ON RADIATION EFFECTS & SAFETY MANAGEMENT: UNSCEAR REPORT ON ATTRIBUTION OF EFFECTS AND INFERENCE OF RISKS

  • Gonzalez, Abel J.
    • Nuclear Engineering and Technology
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    • v.46 no.4
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    • pp.467-474
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    • 2014
  • The aim of this paper is to describe a relatively recent international agreement on the widely debated concepts of: (i) attributing effects to low dose radiation exposure situations that have occurred in the past and, (ii) inferring radiation risk to situations that are planned to occur in the future. An important global consensus has been recently achieved on these fundamental issues at the level of the highest international intergovernmental body: the General Assembly of the United Nations. The General Assembly has welcomed with appreciation a scientific report on attributing health effects to radiation exposure and inferring risks that had been prepared the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) following a formal request by the General Assembly.

Inelastic displacement-based design approach of R/C building structures in seismic regions

  • Rubinstein, Marcelo;Moller, Oscar;Giuliano, Alejandro
    • Structural Engineering and Mechanics
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    • v.12 no.6
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    • pp.573-594
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    • 2001
  • A two-level displacement-based design procedure is developed. To obtain the displacement demands, elastic spectra for occasional earthquakes and inelastic spectra for rare earthquakes are used. Minimum global stiffness and strength to be supplied to the structure are based on specified maximum permissible drift limits and on the condition that the structure responds within the elastic range for occasional earthquakes. The performance of the structure may be assessed by an inelastic push-over analysis to the required displacement and the evaluation of damage indices. The approach is applied to the design of a five-story reinforced concrete coupled wall structure located in the most hazardous seismic region of Argentina. The inelastic dynamic response of the structure subjected to real and artificially generated acceleration time histories is also analyzed. Finally, advantages and limitations of the proposed procedure from the conceptual point of view and practical application are discussed.

Korean 8m Class Optical Facility: Gemini Observatory

  • Hwang, Narae;Kim, Minjin;Yang, Soung-Chul;Lee, Ho-Gyu;Lee, Jae-Joon;Yuk, In-Soo;Sheen, Yun-Kyeong;Park, Byeong-Gon
    • The Bulletin of The Korean Astronomical Society
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    • v.43 no.2
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    • pp.43.4-43.4
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    • 2018
  • As of July 24th 208, Korea Astronomy and Space Science Institute (KASI) has entered into a formal partnership with the Gemini Observatory. The Gemini Observatory has been operated by Association of Universities for Research in Astronomy (AURA) on behalf of the International Partnership that includes Argentina, Brazil, Canada, Chile, United States, and Korea as the new partner country. Effective from the 209A Call for Proposals (CfP), any researchers affiliated with Korean institutes are eligible to apply for various observing opportunities in both hemispheres covered by Gemini North in Hawaii and by Gemini South in Chile. We are going to share the importance and long-term perspectives of the KASI-Gemini Partnership in the context of the next decade of Korean optical astronomy researches.

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2019 Total Solar Eclipse Expedition of KASI

  • Bong, Su-Chan;Yang, Heesu;Lee, Jae-Ok;Kim, Jinhyun;Jeon, Young-Beom;Jang, Bi-Ho;Seough, Jungjoon;Park, Young-Deuk
    • The Bulletin of The Korean Astronomical Society
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    • v.45 no.1
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    • pp.69.2-69.2
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    • 2020
  • Korea Astronomy and Space Science Institute (KASI) is developing a coronagraph to measure the coronal electron density, temperature, and speed utilizing spectral change of the K-corona around 400 nm. However, near UV light is more affected by atmospheric effect on the ground than visible light. For the total solar eclipse on July 2 2019, KASI organized an expedition team to test the possibility of the similar measurement scheme in the visible light. The observation site was in Las Flores, San Juan, Argentina. We built an imaging spectrograph using micro lenslet array and grism, named Coronal Integral Field Spectrograph (CorIFS). In addition, images of white light corona, wide field background, and all sky were taken with various camera settings. We present the preliminary results of the expedition.

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One New Species and One New Record of Electridae (Bryozoa: Cheilostomatida) from Korea

  • Hyun Sook Chae;Ho Jin Yang;Bum Sik Min;Ji Eun Seo
    • Animal Systematics, Evolution and Diversity
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    • v.40 no.1
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    • pp.73-78
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    • 2024
  • A taxonomic study of the family Electridae Stach, 1937 (Bryozoa: Cheilostomatida) was carried out using materials collected from six localities of Korea from 1984 to 2021. Aspidelectra melolontha (Landsborough, 1852) is newly added to the bryozoan fauna of Korea, and Electra jindoica n. sp. is new to science. European A. melolontha is known to occur in brackish water of low salinity, but the species is found in New Zealand and Argentina seawater. This species is also reported as a fouling bryozoan from China and New Zealand. Electra jindoica n. sp. is distinguished by smaller zooid, larger kenozooid, and developed cryptocyst from E. asiatica Grischenko, Dick and Mawatari, 2007. With the addition of two species reported herein, six species and four genera of Electridae from Korea have been recorded: Aspidelectra melolontha, Arbopercula tenella, Conopeum hexagonum, C. reticulum, C. seurati, and Electra jindoica n. sp. Furthermore, the genera Aspidelectra and Electra are new to the Korean bryozoan fauna based on this study.

Optimization of Trichomonas vaginalis Diagnosis during Pregnancy at a University Hospital, Argentina

  • Testardini, Pamela;Vaulet, Maria Lucia Gallo;Entrocassi, Andrea Carolina;Menghi, Claudia;Eliseht, Martha Cora;Gatta, Claudia;Losada, Mirta;Touzon, Maria Sol;Corominas, Ana;Vay, Carlos;Tatti, Silvio;Famiglietti, Angela;Fermepin, Marcelo Rodriguez;Perazzi, Beatriz
    • Parasites, Hosts and Diseases
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    • v.54 no.2
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    • pp.191-195
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    • 2016
  • The aim of this study was to evaluate different methods for Trichomonas vaginalis diagnosis during pregnancy in order to prevent maternal and perinatal complications. A total of 386 vaginal exudates from pregnant women were analyzed. T. vaginalis was investigated by 3 types of microscopic examinations direct wet mount with physiologic saline solution, prolonged May-Grunwald Giemsa (MGG) staining, and wet mount with sodium-acetate-formalin (SAF)/methylene blue method. PCR for 18S rRNA gene as well as culture in liquid medium were performed. The sensitivity and specificity of the microscopic examinations were evaluated considering the culture media positivity or the PCR techniques as gold standard. The frequency of T. vaginalis infection was 6.2% by culture and/or PCR, 5.2% by PCR, 4.7% by culture, 3.1% by SAF/methylene blue method and 2.8% by direct wet smear and prolonged MGG staining. The sensitivities were 83.3%, 75.0%, 50.0%, and 45.8% for PCR, culture, SAF/methylene blue method, and direct wet smear-prolonged MGG staining, respectively. The specificity was 100% for all the assessed methods. Microscopic examinations showed low sensitivity, mainly in asymptomatic pregnant patients. It is necessary to improve the detection of T. vaginalis using combined methods providing higher sensitivity, such as culture and PCR, mainly in asymptomatic pregnant patients, in order to prevent maternal and perinatal complications.

A Case Study on the Resolution of International Investment Disputes Caused by Aggravation of Political and Economic Situation of the Host State - Focusing on the case of CMS Gas Transmission Company v. Argentine Republic (투자유치국의 정치.경제상황 악화로 인한 국제투자분쟁의 해결에 관한 사례연구 -CMS Gas Transmission Company v. Argentine Republic 사건을 중심으로)

  • Oh, Won-Suk;Hur, Hai-Kwan
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.36
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    • pp.87-109
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    • 2007
  • This Comment explores the ICSID case of CMS Gas Transmission Company v. Argentine Republic, awarded on May 12, 2005. The Part II of this Comment first describes the relevant facts of the case including the some background for readers' understanding and the Part III summaries the claimant's requests and the decisions rendered by the Arbitral Tribunal in the Award. At Part IV, the Comment addresses the issue of determinating laws applicable to the merits of dispute in case that the parties of the case have not chosen a governing law, and at Part V, takes a close look into three main issues of (i) the indirect expropriation of the investment, (ii) the breach of fair and equitable treatment and (iii) the protections under umbrella clauses. In this CMS case, we see first that while the Tribunal affirmed that any indirect expropriation can occur from incidental interference depriving the foreign investor of the use or reasonable-to-be-expected economic benefit even if not necessarily to the obvious benefit of the host State, the Tribunal denied the occurrence of indirect expropriation in this case by holding that the Government of Argentina has not breached the standard of protection laid down in the Treaty. Secondly, however, regarding the issue of fair and equitable treatment, we see that the Tribunal, finding Argentina's breach of obligations, affirmed that the foreign investor can expect the host State to act in a consistent manner, free from ambiguity and totally transparently in its relations with the foreign investor, which can give the foreign investor certain degree of foreseeability. Thirdly and finally, we see that, on base of the effect of the umbrella clause, the Tribunal recognized the obligation of the host State undertaken not to freeze the tariff regime or subject it to price controls and not to alter the basic rules governing contracts between the foreign investor and the host State without the first's written consent. However, the protection under the umbrella clause is available only when there is a specific breach of rights and obligations under BIT or a violation of contract rights protected under BIT.

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