• Title/Summary/Keyword: Poisonous

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Flow Field Analysis of Smoke in a Rectangular Tunnel

  • Lee, Yong-Ho;Park, Sang-Kyoo
    • Journal of Advanced Marine Engineering and Technology
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    • v.33 no.5
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    • pp.679-685
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    • 2009
  • In order to simulate a smoke or poisonous gas emergency in a rectangular tunnel and to investigate a better way to exhaust the smoke, the characteristics of smoke flow have been analyzed using flow field data acquired by Particle Image Velocimetry(PIV). Olive oil has been used as tracer particles with the kinematic viscosity of air, $1.51{\times}10^{-5}\;m^2/s$. The investigation has done in the range of Reynolds number of 1600 to 5333 due to the inlet velocities of 0.3 m/s to 1 m/s respectively. The average velocity vector and instantaneous kinematic energy fields with respect to the three different Reynolds numbers are comparatively discussed by the Flow Manager. In general, the smoke flow becomes more disorderly and turbulent with the increase of Reynolds number. Kinematic energy in the measured region increases with the increase of Reynolds number while decreasing at the leeward direction about the outlet region.

Study on the processing methods of Rhei Rhizoma in Donguibogam and Chejungsinpyeon ("동의보감"과 "제중신편"에 기재된 처방중 수치대황의 종류와 효능에 대한 고찰)

  • Lee, Sang-Won;Kim, Hyeun-Jeong;Kim, Jin-Sook
    • Korean Journal of Oriental Medicine
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    • v.9 no.1
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    • pp.91-102
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    • 2003
  • The Effects and processing methods of Rhei Rhizoma from Donguibogam and Chejungsinpyeon were studied, Through the study, we found 21 kinds of processing method of Rhei Rhizoma in Donguibogam and Chejungsinpyeon, Processing methods used in Donguibogam and Chejungsinpyeon were effective from reducing side effects of Rhei Rhizoma, and were safe in clinical application, the aims of processing methods of Rhie Rhizoma were safer application by reducing poisonous character, and increase the range of clinical application by useing 21 kinds of processing methods.

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Studies on the Constituents of the Higher Fungi of Korea (한국의 고등균류의 성분 연구)

  • Kim, Byong-Kak;Lim, Jeong-Han;Yoon, In-Hee;Park, Ock-Jin;Kim, Hae-Sook
    • Korean Journal of Pharmacognosy
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    • v.2 no.2
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    • pp.95-98
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    • 1971
  • In order to detect poisonous or physiologically active constituents in the Higher Fungi growing in Korea, forty three species including two varieties were collected in Kyung Ki and Chung Cheong Buk Do Provinces and subjected to systematic extraction with two kinds of organic solvents. The extracts were examined for alkaloid by adding alkaloid reagents. Of these fungi, three species, Geaster fimbriatus, Lampteromyces japonicus and Pseudocolus schellenbergiae, gave positive confirmatory tests.

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EFFECTS OF AQUEOUS EXTRACT OF A POISONOUS MUSHROOM, AMANITA PANTHERINA ON MICE AND ASSAY OF TOXIC ISOXAZOLE DERIVATIVES BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

  • Yoshio Yamaura;Chang, Il-Moo
    • Toxicological Research
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    • v.4 no.2
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    • pp.85-94
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    • 1988
  • In order to elucidate the mechanism of toxic action of a pisonous mushroom, Amanita pantherina, biochemical effects of the mushroom extracts on mice were studied. A hotwater extract of Amanita pantherina injected intraperitoneally into male ICR mice evoked signs similar to those observed clinically upon acute poisoning by the mushroom and also changed the levels of component enzyme activities in blood, liver and urine. The serum cholinesterase activity was decreased significantly during 1-3 h after injection.

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Bibliographic Study on the Detoxicational Drugs (해독약물(解毒藥物)에 대(對)한 문헌적(文獻的) 고찰(考察))

  • Kim, Kang-San;Kang, Byung-Ki
    • The Journal of Internal Korean Medicine
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    • v.15 no.2
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    • pp.70-108
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    • 1994
  • The kinds and remedies of intoxication were investigated throughout total 22 books of oriental medicine. The results are as follows 1. The kinds of intoxication were 91, most of which were plant intoxications and animal intoxications. 2. The kinds of detoxication medicines was 203, the most popularly prescribed of which were Radix Glycyrrhizae Semen Glycine. 3. The prescribed medicines were most nonpoisonous ones, but some of them were poisonous. 4. The medicines with Han seong(寒性) were most popularly prescribed. The ones with On seong(溫性), Pung seong(平性), Youl seong(熱性), Yang seong(凉性) follows 5. The most popularly prescribed medicine was sweet taste(甘味). The nest ones were pungent taste(辛味), bitter taste(苦味), sour taste(酸味), salty taste(鹹味). 6. The most popularly prescribed medicine was Chung Youl(淸熱) medicines.

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Quality Improvement of Machined Surface in MQL Machining (MQL 가공에서 기계가공면의 표면 품위 향상)

  • Jung, Jong-Yun;Cho, Hyung-Chan;Lee, Choon-Man
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.30 no.3
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    • pp.54-61
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    • 2007
  • Machining processes produce high accurate metallic parts in metal working industries. Lubrication for machining enhances quality of machined surface and it prolongs the life of cutting tools. Since lubricant is poisonous to human body and environment, it causes occupational diseases for workers and air pollution in environment. Because of these problems generated, developed countries do not permit the excessive usage of lubricant in machining shops. This research focuses on the development of MQL machining technique that consumes minimal amount of lubricant, which reduces possible outbreak of occupational diseases and air pollution. This research sets experimental equipments for MQL machining. Experiments for this study are designed with major machining parameters in MQL. Through the analysis of experiments, this paper presents the optimal machining parameters.

Effects on Bacteria Growth of Grude Drugs in Korean Market (시판생약이 세균발육에 미치는 영향)

  • 김영재;김태희
    • YAKHAK HOEJI
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    • v.8 no.2
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    • pp.54-58
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    • 1964
  • Effects on the bacteria gwoth of 96 kinds of crude drugs described in "Pen-Tsao-Kang-Mu" was investigated. Galla Rhois, Moutan Cortex Radicis, Aconiti Tuber, Euphorbiae Radix and PAeoniae Radix showed the antibacterial activity but Cnidii Rhizoma, Coicis Semen, Angelicae gigantis Radix, Asparagi Radix and Liriopes Tuber show the gwoth promoting action of all bacteria used in this experience. It can be seen that 10 kinds of crude drugs classified as poisonous plants inhibited the growth or had no effect by never promoted. 32 kinds of crude drugs as drugs acting on the gastrointestinal system showed antibacterial activity on E. coli $O_{55}$ and E. coli $O_{111}$. 18 kinds on inflammation showed antibacterial activity on Staphylococcus aureus and Sarcina lutea.

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The Pilot Study of the Hepatotoxicity of Aconiti Radix Lateralis Preparata Contained Herbal Medicine in 6 Cases (부자를 포함한 한약처방이 간효소치에 미치는 영향 -임상 6예를 중심으로)

  • 구본수;김태경;한진안;문상관;김영석
    • The Journal of Korean Medicine
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    • v.23 no.1
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    • pp.177-182
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    • 2002
  • It is considered that herbal medicine may also have hepatotoxicity and Aconiti Radix Lateralis Preparata is thought to be the most poisonous. We investigated the changes of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and ${\gamma}-glutamyltranspeptidase{\;}({\gamma}-GT$)$ in 6 cases administrated herbal medicine containing Aconiti Radix Lateralis Preparata and tried to evaluate its influence on liver enzymes. Before administration, the mean values of AST and ALT were $30.5{\pm}12.4${\;}U/L{\;}and{\;}30.7{\pm}22.5{\;}U/L$. After administration, those of AST, ALT and ${\gamma}-GT{\;}were{\;}25.7{\pm}8.7 {\;}U/L,{\;}28{\pm}14.8{\;}U/L{\;}and{\;}34.3{\pm}19.4{\;}U/L$ respectively. Therefore, it is indirectly assured that herbal medicine containing Aconiti Radix Lateralis Preparata didn't influence liver enzymes such as AST, ALT, ${\gamma}-GT$.

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The Method of Hurtfulness Site Interception Using Poisonous Character Weight (유해 문자 가중치를 이용한 951 유해 사이트 차단방법)

  • Jang, Yun-Jung;Jung, Kyu-Cheol;Lee, Tae-Hun;Park, Ki-Hong
    • Proceedings of the Korea Information Processing Society Conference
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    • 2003.05c
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    • pp.2185-2188
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    • 2003
  • 본 논문은 유해 정보 사이트를 차단하는 목적으로 기존의 방법인 제3자가 직접 조사해서 등록하는 방법, 당사자가 직접 등록해서 차단하는 방법, 소프트웨어를 이용해 등록하는 방법, 인터넷서비스 사업자 서비스 제공업체 자체적으로 차단하는 방법 등이 있는데 이런 사이트들의 단점으로는 매일 새로운 사이트가 개설되고 또한 인기 있는 사이트가 포르노 사이트로 둔갑하는 현대사회에는 실정에 맞지 않아 이런 단점을 보안하고자 내용 기반인 테스트에 가중치를 부여하여 유해 정보 사이트를 차단하는 시스템을 제안한 결과 유해 정보 사이트를 접속했을 때 유해 정보 사이트로 판별되는 비율이 78%, 일반 사이트를 접속했을 때 일반사이트로 판별한 비율이 95%로 효과적인 결과가 나타났다.

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Phytolacca Radix Poisoning due to Misidentification as an Arrowroot (오인으로 인해 집단으로 발생한 자리공 중독)

  • Jin Woo-Je;Jin Youngho;Jeong Tae-O;Lee Jae- Baek
    • Journal of The Korean Society of Clinical Toxicology
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    • v.2 no.1
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    • pp.27-30
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    • 2004
  • Phytolaccaceae had been used as a pharmaceutical drugs or food in Korea. Nowadays, it is rarely used due to its toxicity, and then, case reports as to poisoning also are rare. Recently, Authors experienced a case of an occurrence in a group intoxication after ingestion of roots of phytolacca american a misidentifying as arrowroot. We report this case with review of phytolacca radix poisoning.

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