• Title/Summary/Keyword: fumigation method

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Evaluation of Possibility of using an Ultrasound Probe Sterilizer using the Steam Fumigation Method (증기훈증방식을 이용한 초음파 프로브 소독기의 사용 가능성 평가)

  • Ha, Jeong-Min;Heo, Yeong-Cheol;Han, Dong-Kyoon
    • Journal of the Korean Society of Radiology
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    • v.16 no.3
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    • pp.195-201
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    • 2022
  • This study aims to evaluate the feasibility of the disinfection of clinical ultrasound probes using the vapor fumigation method, which can quickly achieve high-level disinfection. Upon the inspection of the microbial contamination level of clinically used ultrasound probes, nine different types of bacteria were detected. The disinfection efficacy of 7.5% and 35% hydrogen peroxide (H2O2) was comparatively tested for the detected microbes. The 35% H2O2 demonstrated superior efficacy per disinfection duration. No significant change was observed in the rubber component of the ultrasound probes as a result of the 35% H2O2 disinfection treatment. The probes were contaminated with the microbes detected in the microbial contamination level inspection and subsequently disinfected using the novel medical disinfector that utilizes the vapor fumigation method. As a result, the disinfection using the novel device achieved 100% eradication of the microbes from the probes.This study demonstrates that the novel vapor fumigation method-based disinfector provides a faster and more powerful means of disinfection than the conventional disinfection methods. Therefore, the novel disinfector has the potential to be used as a convenient ultrasound probe disinfector in clinical settings.

도서관 자료보존을 위한 조사 연구

  • Park, Won-Gi
    • KLA journal
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    • v.17 no.2
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    • pp.3-8
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    • 1976
  • We sampled the fungi on the grounds of the floor and books in the library for the purpose of attack the fungi in the traditional library. We cultured it on the Sabouraud Dextrose Agar(Baltimore Biological Laboratory) and was obtained the fungi of six species, Here irradiated the ultra violet lamp(100V, 15W, 253Å), which was occurred to the colony after 24 hours. And irradiation by 2hrs/day for 2days here. The other method, we were sterilized test by the methanal fumigation The following results were obtained 1. All rearing is suspensed the result of the ultra violet rays irradiation, but the colony that is gained from the grounds of the floor in the library is not sterilized. 2. The result of air tight box to methanal 14ℊ/㎥ for the 24hours fumigation, each test group(the fungi of six species) is all sterilized.

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Acaricidal effects of herb essential oils against Dermatophagoides farinae and D. pteronyssinus (Acari: Pyroglyphidae) and qualitative analysis of a herb Mentha pulegium (pennyroyal)

  • Rim, In-Sook;Jee, Cha-Ha
    • Parasites, Hosts and Diseases
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    • v.44 no.2 s.138
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    • pp.133-138
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    • 2006
  • This experiment was undertaken to screen the acaricidal effects of herb essential oils (pennyroyal, ylang ylang, citronella, lemon grass, tea tree, and rosemary) at different doses (0.1, 0.05, 0.025, 0.0125, and $0.00625{\mu}l/cm2$) and exposure times (5, 10, 20, 20, 30 and 60 min) on house dust mites Dermatophgoides farinae and D. pteronyssinus. The most effective acaricidal components of pennyroyal (Mentha pulegium) were analyzed using a gas chromatography-mass spectrometer (GC-MS). Of these essential oils, the most effective was pennyroyal, which is composed essentially of pulegone (> 99%), at a dose of $0.025{\mu}l/cm^2$, which at an exposure time of 5 min killed more than 98% of house dust mites. In the pennyroyal fumigation test, the closed method was more effective than the open method and maximum acaricidal effect was 100% at $0.025{\mu}l/cm^2$, 60 min. The results show that herb essential oils, in particular, pennyroyal was proved to have potent acaricidal activity.

Development of a New Disinfestation Method Using Methyl Bromide and PH3 in Cut Rose Fumigation (절화장미 훈증처리시 Methyl Bromide와 PH3를 이용한 새로운 살충방법의 개발)

  • Son, Ki-Cheol;Byoun, Hye-Jin;Kim, Mi-Kyoung;Yun, Jae-Gil;Kim, Eui- Young
    • Horticultural Science & Technology
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    • v.16 no.3
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    • pp.370-373
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    • 1998
  • Fumigation by combination of methyl bromide/phosphide ($MB/PH_3$) was much more effective in disinfestating the rose insect pests (Aphis gossypii, Tetranychus urticae, and Frankliniella occidentalis) than that by individual MB or $PH_3$. Fumigation for 2 hours in the chamber using ;$MB/PH_3$ at the concentration of $10/3g{\cdot}m^{-3}$ brought about 91.3% and 100% mortality in aphids and thrips, respectively. Fumigation for 3 hrs using ;$MB/PH_3$ at the concentration of 5/3 or $7/3g{\cdot}m^{-3}$ showed over 96% mortalities in mites and thrips as well as no phytotoxicity symptoms, e.g. tip burn or bent neck, in cut roses, while mortalities of mites and thrips were not influenced by increasing $CO_2$ concerntration from 0.03% to 10% or decreasing $O_2$ concentration up to 15% in fumigation chamber.

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A Literatural study on the hemorrhoids and hemorrhoids complicated by anal fistula (痔瘡과 痔瘻에 對한 文獻的 考察)

  • No, Hyun-Chan;Rho, Sek-Seon
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.10 no.1
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    • pp.284-305
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    • 1997
  • A Literatural study on the etiological factors, classification, prescription of hemorrhoids and hemorrhoids complicated by anal fistula following results were obtained. 1. The cause of hemorrhoids are long time sit, long time gate, overfatigue, overeating, imbalance of stool( constipation or diarrhea), pregnant fertility(overfatigue after childbirth, insufficiency of middle warmer energy), uncontrol sexual excess, pathgenic factors of wetness, heat, wind, dry, genetic cause, excess of anxiety, pile up of heat poison, weakness of entrails and viscera. The cause of hemorrhoid complicated by anal fistula are attack of external wind, heatness, dry, fire, wetness(pathgenic factors), inapporiate treatment and chronic disease, greasy diet, excess of anxiety, constipation, uncontrol sexual excess, obstacle of circulation of vital energy and blood on anal site. 2. Classification of hemorrhoids are female hemorrhoids, male hemorrhoids, pulse hemorrhoids, intestines hemorrhoids, vital energy hemorrhoids, wine hemorrhoids, blood hemonhoids, flowing hemorrhoids. Classification with other method are external hemorrhoids, internal hemorrhoids, mixed hemorrhoids, excrescence hemorrhoids, nipple homorrhoids. External hemorrhoids is classified of varicosis of hemorrhoidal vein, connective tissue form, thrombus form. Classification of hemorrhoid complicated by anal fistula are simple lower hemorrhoid, lower mixed hemorrhoid, deep hemorrhoid, outer of one hole hemorrhoid, a horseshoe hemorrhoids. Once more classificated of four are space of sphincter muscle form, penetration sphincter muscle form, upper of sphincter muscle form, outer of sphincter muscle form. 3. Therapy method of hermorrhoid and hemorrhoid complicated by anal fistula are internal method, fumigation method method, ointment, method of close with medicine, necrotizing method, hot medicated compress( gxternal method), injection, insertion, bind, (operation) and acupuncture therapy (the others method) 4. Herb medicine for many used of internal method are Scutellaria baikalensis George(黃芩), Coptis japonia Makino(黃連), Rehmania giutinosa Liboschitz ex Fischer & Meyer(生地黃), Poncirus trifoliata Refinesque(枳殼), Sanguisorba officinalis Linne(地楡), Sophora japonica L.(槐花), Cnidium officinale Makino (川芎), Astragalus membranaceus Bunge(황기), Angelica gigas Nakai (當歸). 5. Herb medicine for many used of fumigation are Schlechtendalia Chinesis J. Bell (五倍子), Artemisia Vulgaris L. var indica Maxim(艾葉), Poncirus trifoliata Refinesque (枳殼), Nepeta japonica Maximowicy(荊芥), And herb medicine for many used of ointment are Calomelas(輕粉), Alum(白礬), Boswellia carterii Birdwood(乳香), Os Draconis Fossilia Ossis Mastodi(龍骨).

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The Latest Research Trend on Korean Medicine of Rib Fractures: Focused on China National Knowledge Infrastructure (CNKI), PubMed (늑골골절의 한의학적 치료에 대한 최신 연구동향: China National Knowledge Infrastructure (CNKI), PubMed를 중심으로)

  • Park, Eun Sang;Hwang, Hyeon Ho;Park, Ki Hyun;Kim, Ho Geol;Im, Ji Sung;Kang, Jun Hyuk
    • Journal of Korean Medicine Rehabilitation
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    • v.32 no.4
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    • pp.47-60
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    • 2022
  • Objectives The purpose of this study is to identify the latest research trends regarding the nonsurgical treatment of rib fractures and suggest the direction for future research. Methods We searched for papers published from January 1, 2015 to July 1, 2022 in PubMed and the China National Knowledge Infrastructure (CNKI) based on keywords 'rib fracture'. 'Korean medicine', 'oriental medicine', 'TCM', 'moxibustion', 'acupunture', 'cupping', 'electroacupuncture', 'pharmacopuncture', 'fire needling'. Results A total of 79 studies were searched at first research. Then the studies were screening according to criteria and Finally 20 studies were selected. The oriental medical interventions analyzed in this study were fumigation method, herbal medicine, external application, acupuncture, ointment, herb fomentation, Tending Diancibo Pu far-infrared therapy. Conclusions Various oriental medical interventions such as herbal medicine, acupuncture, fumigation, herb fomentation, ointment, and physical therapy are being studied abroad for the treatment of rib fractures. It is considered that additional research related to the nonsurgical treatment for rib fractures is needed in the future in korea.

Effects of chlorine dioxide gas fumigation on the storage quality of astringent persimmon (Diospyros kaki T.) Cheongdobansi

  • Jiyoon Kim;Jung Soo Kim;Minhyun Kim;Ji Hye Kim;Insun Kim;Inju Nam;Jong-Kuk Kim;Kwang-Deog Moon
    • Food Science and Preservation
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    • v.30 no.2
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    • pp.190-204
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    • 2023
  • Because of their short harvest season, large quantities of persimmons must often be processed within a limited time. Therefore, new methods to extend their storage life are required. This study examined the effects of chlorine dioxide (ClO2) gas fumigation for various treatment periods on the storage quality of astringent persimmons Cheongdobansi under low-temperature conditions. The conditions consisted of continuous treatment with ClO2, treatment for 2 weeks with ClO2, and no treatment, all of which are stored at low temperatures. Control samples (storage 0 days) without any treatment were prepared and all experiments were conducted for 10 weeks at two-week intervals. The ClO2 gas treatment maintained the moisture content, color value, hardness, soluble tannin content, and sensory characteristics. However, ClO2 gas treatment did not affect the soluble solids, pH, and total sugar content. In particular, continuous treatment with ClO2 maintained the storage quality after 6-8 weeks of storage, particularly the hardness and weakness (sensory evaluation). The results suggest the potential of continuous treatment with ClO2 as a highly effective method for maintaining the freshness of Cheongdobansi.

Confirmation of fumigation effect on and toxicity analysis on microorganisms isolated from records (기록물에서 분리된 미생물에 대한 훈증소독의 효능검증과 독성조사)

  • Jo, Yih-Yung;Shin, Jong-Sun;Yoon, Dai-Hyun
    • Journal of Korean Society of Archives and Records Management
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    • v.1 no.1
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    • pp.231-243
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    • 2001
  • The sterilization method of records by fumigation using mixed gas of methyl bromide(MB) and ethylene oxide(ETO) has been generally used as a way to protect biological deterioration by microorganisms and insects. In this study, we confirmed sterilization effect of MB and ETO [86 : 14(Vol.%)] on and analyzed toxicity on microorganisms isolated from records. To analyze sterilization effect of fumigation on microorganisms and insect, we have fumigated microorganisms and insect with a various amounts mixed gas of MB and ETO, and various exposure time. Insect was sterilized at all experimental conditions. In microorganisms, sterilization effect was detected only when the mixed gas was treated at $120g/m^3$ concentration for at least 24 hrs. To test the possibility of isolated microorganisms as a threat to human health, it was investigated that toxicity test using yeast, radish and cancer cells on microorganisms. Only Aspergillus oryzae had an inhibition effect on growth of yeast. radish and cancer cells, respectively. These results demonstrate that sterilization effect can occur at low concentrations of the mixed gas on insect but requires higher concentrations of the mixed gas on microorganisms. In addition to, it is suspected that the possibility of the microorganism as a threat to human health is little.

A Study of External Treatment History in Wei(魏) Dynasty and Jin(晋) Dynasty (위진시대(魏晋時代)의 외치요법(外治療法)에 관한 연구)

  • Moon, Woo-Sang;Kim, Eun-Ha;Lee, Byung-Wook
    • Journal of Korean Medical classics
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    • v.18 no.3 s.30
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    • pp.70-80
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    • 2005
  • 1) Objective External treatments have various curative effects. So it had been used to cure various patients. But, it has a limited sphere of application in the present South Korea. Therefore we would like to bring out its sphere of application and detailed method in the oriental medicine classics. 2) Conclusions From long time ago people have used external treatment to cure various disease. According to the ${\lceil}Nei-Jing{\rfloor}$, hot compress therapy, fumigation therapy and bathing therapy had been used to cure blockage syndrome, muscle disease, carbuncle and cellulitis. Thereafter, a sphere of external treatment had gradually enlarged. (1) After all its sphere had included dermatologic, psychologic, internal, ophthalmic, otolaryngologic, obstetrics, gynecologic, pediatric and surgical diseases. (2) External treatment methods have contained hot compress therapy, fumigation therapy, bathing therapy, application therapy, medication bag therapy, medication plug therapy, medication massotherapy, aroma therapy and so on. (3) Medication types of external treatment have contained ointment, juice, infusion, powder, suppository and so on.

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Invention of the Portable Bark Remover for Control of Pine Wilt Disease by Disruption of Oviposition of Insect Vector (Monochamus alternatus) (소나무재선충병 매개충 솔수염하늘소(Monochamus alternatus) 방제를 위한 휴대용 수피제거기 개발 및 산란 방지 효과)

  • Kim, Joon Bum;Park, Young Kyu
    • Journal of Korean Society of Forest Science
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    • v.102 no.2
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    • pp.300-304
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    • 2013
  • Pine wilt disease caused by pine wood nematode, Bursaphelenchus xylophilus (Steiner et Buhrer) Nickle, has become the most serious threat to pine trees in Korea since 1988. Pine wood nematode is transferred to healthy trees by Monochamus alternatus (Coleoptera: Cerambycidae) during its maturation feeding and female oviposition. A typical control method against insect vectors in Korea is fumigation of the dead trees by using metam-sodium SL (25%). However, this method is not environment friendly because of the forest contamination by chemical application and destroying landscape by plastic cover. Portable Bark Remover (PBR) was invented to reduce these environmental problems. The vectors oviposit under the bark of the newly dead trees only. Debarking infested trees prevents the vectors from laying eggs and eventually, they can not complete their life cycle. The PBR is a modified debarking device that is attached on the top of the electrical chain saw, which allows ease and rapid debarking of the infested trees. The new method by PBR is expected to be more economic and effective than other conventional methods such as "crushing", "burning" and "fumigation".