• Title/Summary/Keyword: Condition of treating

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A Study on the Bleaching of Cotton Fabrics by utilizing Ozone(($O_{3}$) (오존($O_{3}$)을 이용한 면직물의 표백에 관한 연구)

  • Cho, Hwan;Seo, Mal Young;Yu, Jae Sun;Lee, Byung Hyun;Huh, Man Woo;Lee, Kwang Woo;Cho, In Sul;Jong, Hee Cheon
    • Textile Coloration and Finishing
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    • v.5 no.4
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    • pp.49-59
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    • 1993
  • In order to study the bleaching of cotton fabrics, ozone which has been produced by an ozone generator, has been contacted with cotton fabrics in water at various conditions. The equipments used for the ozone treatment of cotton fabrics were the ozone generator and a liquor/ozone contactor. For the examination of the ozone bleaching effect on cotton fabrics the whiteness, tensile strength, wettability and clark softness of the ozone treated cotton fabrics were measured. The conclusion obtained were, ozone concentration was increased, as the voltage was increased and flow rate was decreased and oxygen amount was increased. Bleaching effect of treated fabrics increased with increasing attributed more the net concentration of ozone rather than the total ozone amount of produced. The whiteness of treated fabrics was found to be best when treating temperature was 15~20<$^{\circ}C$, in acidic condition. The tensile strength of treated fabrics decreased as the treating time increased, and as the temperature raised, and the acidity increased. The wicking distance of treated fabrics increased slightly with increasing the treating time and the temperature. Clark softness of treated fabrics was not changed until passing 30min. of the treating time, then it decreasing linealy with increasing the treating time.

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Integrated Management of Foot Rot of Lentil Using Biocontrol Agents under Field Condition

  • Hannan, M.A.;Hasan, M.M.;Hossain, I.;Rahman, S.M.E.;Ismail, Alhazmi Mohammed;Oh, Deog-Hwan
    • Journal of Microbiology and Biotechnology
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    • v.22 no.7
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    • pp.883-888
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    • 2012
  • The efficacy of cowdung, Bangladesh Institute of Nuclear Agriculture (BINA)-biofertilizer, and Bangladesh Agricultural University (BAU)-biofungicide, alone or in combination, was evaluated for controlling foot rot disease of lentil. The results exhibited that BINA-biofertilizer and BAU-biofungicide (peat soil-based Rhizobium leguminosarum and black gram bran-based Trichoderma harzianum) are compatible and have combined effects in controlling the pathogenic fungi Fusarium oxysporum and Sclerotium rolfsii, which cause the root rot of lentil. Cowdung mixing with soil (at 5 t/ha) during final land preparation and seed coating with BINA-biofertilizer and BAU-biofungicide (at 2.5% of seed weight) before sowing recorded 81.50% field emergence of lentil, which showed up to 19.85% higher field emergence over the control. Post-emergence deaths of plants due to foot rot disease were significantly reduced after combined seed treatment with BINA-biofertilizer and BAU-biofungicide. Among the treatments used, only BAU-biofungicide as the seed treating agent resulted in higher plant stand (84.82%). Use of BINA-biofertilizer and BAU-biofungicide as seed treating biocontrol agents and application of cowdung in the soil as an organic source of nutrient resulted in higher shoot and root lengths, and dry shoot and root weights of lentil. BINA-biofertilizer significantly increased the number of nodules per plant and nodules weight of lentil. Seeds treating with BAU-biofungicide and BINA-biofertilizer and soil amendment with cowdung increased the biomass production of lentil up to 75.56% over the control.

A Study on Repeat Heat Treating and Controlled Rolling of Mo-alloyed Plate Steels (Mo첨가 열연강판의 반복 열처리 제어압연에 관한 연구)

  • Lee, Jeong-Hun;Hong, Seung-Chan;Lee, Gyeong-Seop
    • Korean Journal of Materials Research
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    • v.9 no.7
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    • pp.740-747
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    • 1999
  • Grain refinement is the only strengthening mechanism that improves both strength and toughness. Controlled rolling and accelerated cooling techniques have been known to be effective method to improve the mechanical properties by controlling the recrystallization and/or grain coarsening during processing. Repeat phase transformation $(\gamma/\alpha)$ by repeat heat treating is another way of grain refinement. In this study, a combined effect of controlled rolling and repeat heat treating was investigated. To study the effects of Mo addition and process parameters, Mo alloyed low carbon steels were prepared and thermomechanical controlled processes were simulated in the Gleeble system. The Mo addition resulted in an increasement of the grain coarsening temperature and suppress austenite recrystallization. The optimum condition for the refinement of austenite was obtained when the controlled rolling was performed twice with the same heat treatment condition, and reduction ratio of second pass was higher than that of first pass.

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A Case Report of Functional Dyspepsia with Abdominal Distention (기능성 소화불량증으로 복부창만(腹部脹滿)이 지속되는 환아 증례 1례 보고)

  • Kim, Cho-Young;Chang, Gyu-Tae
    • The Journal of Pediatrics of Korean Medicine
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    • v.23 no.3
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    • pp.121-131
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    • 2009
  • Objectives This study is to report a case that has an important meaning as a result of treating functional dyspepsia with oriental treatment. We investigated functional dyspepsia in 6 years child who had to continue abdominal distention for a month after gastroenteritis. The child has recovered from all dyspepsia symptoms after treating with oriental medicine. Methods The patient had dyspepsia symptoms all day, especially repeated abdominal distention. He sometimes had nausea, vomiting, diarrhea, abdominal pain. For those symptoms, we treated him with herbal medicine and acupuncture. The aim of treatment was to improve functional dyspepsia without western treatment. We measured patient's abdomen circumference for change of abdominal distention. Results The symptoms of functional dyspepsia were vanished and the patient maintains his condition with oriental medicine treatment without western treatment. After herb medicine treatment and acupuncture treatment the patient's dyspepsia symptoms (nausea, vomiting, diarrhea, abdominal pain, and abdominal distention) were vanished and maintained his condition for two months after complete the treatment. Conclusions This study showed that oriental medicine can elevate the functional dyspepsia children's quality of life with continuous health care and treatment. For more accurate studies, further studies would be needed with more cases.

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A study on the Healing Mechanism of Herbal Medicine, Oryoungsan (오령산의 작용기전(作用機轉)에 대한 고찰(考察))

  • Nam, Hyoung-sin;Cho, Chung-sik;Kim, Chul-jung
    • Journal of Haehwa Medicine
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    • v.10 no.1
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    • pp.157-166
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    • 2001
  • Oryoungsan which first recorded in Sanghanron, the clinical medical book consists of treating acute febrile disease according to its change, is one of the frequently used oriental medicines. these days, it has been prescribed in symptoms accompanied by edema mostly. therefore it is easy to consider it as a type of diuretics. In Sanghanron it was originally used in the symptoms of perspiration, decreased urine volume, thirsty, flatulence. these symptoms indicate loss of body fluid and the prescription which orders "taking warm water sufficiently" supports this. On this background, it is supposed that Oryoungsan treats dehydration after providing water and electrolytes. To consider that herbal medicines consisted of Oryoungsan make electrolytes go out of the body, The healing mechanism of dehydration doesn't meet this. Because Oryoungsan was used in condition of fever or in similar condition, it is more resonable to understand that restoration of increasing blood flow to the subcutaneous venous plexus regulating body temperature in febrile condition into body circulation, resulting into maintaining main blood volume and into treating decreased urine volume and thirsty is Oryoungsan's function in the dehydration or febrile condition. That is, symptoms are decreased or disappeared through restoring unbalance of internal body fluid. The other target is pain controls, especially chronic headache, facial pain and trigeminal neuralgia. it is suggested that the function of pain control of Oryoungsan is related to 5-HT(5-hydroxytrypamine), nerve transmitter in the endogenous analgesic system. Moreover it is also suggested that Oryoungsan is relate to 5-HT, considering the fact that gastroparesis, a symptom of cyclic vomiting syndrome treated with 5-HT1D receptor agonist is similar to the 'bi', symptoms appeared in the Oryoungsan-related disease.

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Anti-static behavior of Synthetic fabrics treated by anti-static agents (대전방지처리된 합성섬유의 대전성에 관한 연구)

  • Choi Suk-Chul;Kim Mi-Sung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.11 no.1
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    • pp.51-62
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    • 1987
  • In this study, electrostatic behavior of polyester and nylon fabric treated with anti-static agents were investigated. The effects of the concentration of the agents and curing conditions on the electrostatic charge of the fabrics were studied. And washfastness, lightfastness and physicalproperties of the treated fabrics were also investigated. The results were as follows: 1) Polyethylene glycol alkylester was more effective in antistatic behavior than polyethylene laurylphosphate, and polyester is more effective in anti-static behavior than nylon. 2) Concentration of anti-static agents were suitable in concentration of $4\%$. 3) Glyoxal resin was more effective in anti-static behavior than melamine resin, and it was also good in the retaing anti-static behavior after treatments of lightfastness and washfastness. 4) As the condition of curing treatment, $190^{\circ}C$, 1min. for glyoxal resin and $130^{\circ}C$, 4min. for melamine resin is appropriate. 5) In comparison of anti-static behavior according to treating conditions, the simultaneous treatment was more effective than any other treatments. 6) Change of electrostatic charge of anti-static nylon cloths after treatments of lightfastness and washfastness increased greatly in above 10 laundering time and 20 fade-O-meter time. 7) In physical properties according to concentration of treating agents. decrease of physical properties scarcely appeared in concentration of treating agents $4\~5\%$.

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Modification of Cotton Treated with Cellulase( I ) ―Effect of Treating Condition on the Weight Loss― (셀룰라아제 처리에 의한 면의 개질( I ) ―감량률에 미치는 처리조건의 영향―)

  • Hong, Ki Jeong;Lee, Mun Cheul;Bae, So Yeung;Park, Soo Min;Kim, Kyung Hwan
    • Textile Coloration and Finishing
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    • v.5 no.4
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    • pp.10-19
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    • 1993
  • Broad, mercerized broad, mercerized twill cotton fabrics and rayon fabric were treated with cellulase for 30~480 minutes at different temperature, concentration, time, and also treating methods such as continuously-treated or repeatedly-treated, and dyed with two direct dyes before or after enzyme treatment. From the experimental result by treating under the various conditions above, it was obtained that the weight loss increased more in thin fabric than thick one. In addition, it was considered that the treatment in 5$0^{\circ}C$ for 240 minutes brought about the ideal weight loss and flexible hand of the specimens. For both broad and mercerized broad, repeated treatment showed more weight loss than continuous. Direct dye on cotton fabric apparently inhibited hydrolysis. Ionic surfactants showed the inhibition effect of the catalytic hydrolysis of enzyme, on the other hand, nonionic surfactant did not.

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Rejuvenation Technologies for Hot Gas Path Components made of Nickel Based Superalloys (니켈기 초합금 소재 고온부 부품의 재생정비기술)

  • Kang, Sin-Ho;Choi, Heui-Sook;Kim, Dae-Eun
    • Proceedings of the KSME Conference
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    • 2003.11a
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    • pp.424-429
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    • 2003
  • Hot gas path components, which are made of nickel based superalloys, are subject to periodic replacement due to degradation of thermomechanical properties that might bring catastrophic failure during normal operation of gas turbine units. In order to rejuvenate the metallurgical condition of the serviced components, heat treating techniques such as solution annealing and aging heat treatments have widely been employed. However, the effectiveness of those typical heat treatments is not apparent enough in terms of quantitative grounds. On the other hand the demand of the rejuvenation heat treatment and hot isostatic pressing (HIP) have constantly been raised by the end users. Therefore it is necessary to verify how the typical heat treating techniques affect to the aged and degraded material. As the result of experimental work in this study, GTD-111 and GTD-222 Ni-based superalloys were collected and analyzed quantitatively through microscopic observation, microhardness evaluation and creep test.

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Sympathetic Block for Treating Primary Erythromelalgia

  • Bang, Yoo-Jin;Yeo, Jin-Seok;Kim, Si-Oh;Park, Young-Hoon
    • The Korean Journal of Pain
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    • v.23 no.1
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    • pp.55-59
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    • 2010
  • Primary erythromelalgia is a rare condition that’s characterized by erythema, an increased skin temperature and burning pain in the extremities. The pain is often very severe, and treating erythromelalgia is frustrating and difficult. We report here on the case of a 12-year old girl with primary erythromelalgia in both lower extremities. The pain was refractory to medical treatment, but a bilateral sympathetic block with lidocaine and triamcinolone resulted in relief from the pain. Our experience with this disease demonstrates that sympathetic blocks are effective in improving the symptoms and they may be attempted on erythromelalgia patients who do not respond to other treatments, including medication and epidural blocks.

Fabrication and Characterization of NbTi Superconduction wire for MRI (MRI용 NbTi 초전도선재 제조 및 초전도 특성 평가)

  • Ha, D.W.;Oh, S.S.;Ryu, K.S.;Han, I.Y.;Lee, C.K.
    • Proceedings of the KIEE Conference
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    • 1997.07d
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    • pp.1494-1496
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    • 1997
  • The MRI Magnet is a most practical application of NbTi superconductor. In this paper, we present the main research results on superconducting wires for MRI magnet which we have developed. Cu/NbTi superconducting wires were fabricated by repeat of cold working and heat-treating process after that billets were extruded. We investigated the relation of superconductivities of wires and heat treatment condition. The correlation between cross section shape of wires and work inhomogeneity of NbTi rods was investigated by microscopic observation. The more repeatation number of cold working and heat-treating process, the higher critical current is achieved.

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