• Title/Summary/Keyword: burn-in

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Variation of Pore Structure of Coal-based Activated Carbon with Burn-off of Steam Activation (수증기 활성화법으로 제조된 석탄계 활성탄의 Burn-off에 따른 세공구조의 변화)

  • Lee, Song-Woo;Moon, Jang-Cheon;Lee, Chang-Han;Choi, Dong-Hoon;Ryu, Dong-Chun;Song, Seung-Koo
    • Journal of Korean Society of Environmental Engineers
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    • v.22 no.12
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    • pp.2141-2148
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    • 2000
  • This study is to investigate changes of pore structure with different burn-off degree of steam activated carbons manufactured from domestic anthracite. The activated carbons were characterized by adsorption of nitrogen at 77 K. Steam activation substantially enhanced the porosity of the activated carbons. Burn-off increased linearly according to increasing activation time, and total pore volume and BET surface area increased with burn-off. Activation at $800^{\circ}C$ increased more micropore volume than that at $950^{\circ}C$. Activated carbons manufactured at high temperature had less microporosity than that at lower temperature, but had more developed macroporosity. The steam activation produced an enlargement of pore below $100{\AA}$ diameter in the activated carbons. Furthermore, the porosity in the $6{\sim}40{\AA}$ pore diameters range increased considerably with the degree of burn-off.

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Characteristics of Burn Types, Causes, and Treatment in Hospitalized Female Patients with Industrial Injuries (화상으로 입원한 여성 근로자의 화상유형 및 발생원인, 치료적 특성)

  • Kim, Ji-Na;Kang, Hee Sun
    • Korean Journal of Occupational Health Nursing
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    • v.25 no.2
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    • pp.85-95
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    • 2016
  • Purpose: The purpose of this study was to examine the burn characteristics of female patients hospitalized in a burn center. Methods: This is a retrospective descriptive study. The subjects were 222 female patients aged over 19 years old having burn injuries from work sites between January 1, 2012 and December 31, 2014. Data were collected using electronic medical records about the burn-related characteristics. The data were analyzed descriptively. Results: Many of the subjects were in their forties and fifties. Most subjects showed burns with an area of less than 10% of the body surface with a severity of second degree. Scalding burns were the most frequent. Contact burns were usually of third-degree severity and occurred on hands and wrists. Flame burns affected the largest body surface area and frequently occurred on the face and mainly caused by explosion of a stove or kitchen gas. Chemical burns frequently occurred on the lower limbs. Conclusion: Female workers are exposed to the hazards of burn injuries in industrial accidents. Types of burn differ depending on the workplace conditions. Therefore, preventative measures for burn injuries should be established in accordance with the characteristics of each industry to which female workers belong.

Acceleration of Wound Healing on Scald Burn Skin Using Irradiation of TDP and Skin Spread of Myrrha

  • Cho Hyun Gug;Kim Keum-Suk;Lee Jong-wook
    • Biomedical Science Letters
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    • v.11 no.2
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    • pp.243-248
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    • 2005
  • The present study was conducted to determine whether skin spread of Myrrha and Tending Diancibo Pu (TDP) irradiation have a remarkable effect on the cell regeneration as well as wound healing following dermal scald burn injury. Burn injury was induced on dorsal surface $(TBSA\;15\~20\%)$ by scald burn in rats. Postburn concentration of serum protein was significantly decreased compared with sham-treated, double treatment with Myrrha and TDP was significantly increased the protein concentration compared with that of burn control. The content of keratinocyte growth factor (KGF) at 48 h is higher than that of at 24 h, and double treatment with Myrrha and TDP was the most effective to increase the production of KGF in all experimental groups. Morphologically, epithelial regeneration and dermal collagen synthesis by fibroblasts were accelerated in Myrrha and TDP treated group compared with bum control at same time postburn. At 48 h after burn, all dermal connective tissues are recovered to new collagen fibers in case of Myrrha and TDP double treated group. The data suggest that double treatment with skin spread of Myrrha and TDP radiation have a remarkable effect of to accelerate cell regeneration and wound healing in case of scald burn skin.

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The Clinical Investigation of Necrotizing Fasciitis in Burn Center (화상센터에서 치료한 괴사성근막염의 임상적 고찰)

  • Kim, Euimyung;Chun, Jin Woo;Kim, Young Min;Yoon, Jae Chul;Lim, Hae Jun;Cho, Yong Suk;Kim, Dohern;Hur, Jun;Chun, Wook
    • Journal of the Korean Burn Society
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    • v.22 no.2
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    • pp.66-70
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    • 2019
  • Purpose: The necrotizing fasciitis is a terrifying infectious disease that can rapidly spreads to surrounding tissues when fascia is infected and it can cause sepsis to death if not properly diagnosed and treated. The purpose of this study is to investigate the characteristics, causes, and treatment methods of necrotizing fasciitis in Korea through reviewing patients admitted to our burn center. Methods: 21 patients with necrotizing fasciitis were selected for this study among those inpatients with electronic medical records (EMR) admitted to Hallym University Hangang Sacred Heart Medical Center from Jan 1, 2008 to June 30, 2019. The medical records and wound photos of those 21 selected subjects were reviewed. Results: There were 13 male and 8 female patients and mean age was 58.76 years old. 13 of 21 subjects were survived and 8 died (38% mortality rate). The surgical treatments performed were I&D, fasciotomy, debridement, allograft, burring, STSG, flap, and amputation. The most common causes were burns in 9 subjects (6 contact burns) and cellulitis occurred on skins in 5 subjects. And other various causes were observed as fournier's gangrene, stab wound, intramuscular injection, tumor and bleu toe syndrome (toe necrosis). The infected areas were 11 feet and legs, 7 hips, 3 abdomen and trunk in 21 subjects. Of the 8 deaths, 3 were infected in feet and legs, 2 were infected in hips, and 2 were infected in abdomen and trunk. As for underlying diseases, 12 patients with hypertension or diabetes were the highest and others such as cancer and stroke were found. Conclusion: The only method to increase the survival rate is to 'suspect' the disease as much as possible and perform early extensive excision. It is advisable to treat the disease by the burn center to properly provide adequate and optimal wound management, infection control, medical care and nutritional supports.

A Case of Second Degree Burn on the Feet (兩足部 화상 치험 1례)

  • Ku, Young-hui;Choi, In-hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.16 no.3
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    • pp.260-267
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    • 2003
  • Burn injury is occuring often in our living environment. But there has been little report on the treatment of burn on the basis of Oriental medicine. So we experienced a 53 year old female with second degree burn on the feet and reported the result of the treatment for her with Acupuncture, Herb-med, Negative therapy and Light therapy.

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The Effects of the low power intensity He-Ne IR laser on the change of the Serum Immunoglobulin components in burn rat (저 에너지 레이저 강도가 화상흰쥐의 혈청 면역글로불린의 성분 변화에 미치는 효과)

  • Rho Min-Hee;Kim Jae-Young
    • The Journal of Korean Physical Therapy
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    • v.12 no.3
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    • pp.469-474
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    • 2000
  • This studies were to investigate the effects of low power intensity Helium-Neon Infra-Red(He-Ne IR) laser on the changes of the serum immunoglobulin(1g) components in burn rats, The fourty eight Spraque-Dawley adult male rats were assigned to the 8 groups: the experimental groups(4), the burn control groups(2) and the control groups(2) There was made three degree burn by the 250mW IR on the back of each rats, from 3 days after being burned, the experimental laser groups were irradiated low power He-Ne IR laser for 3 minutes and 4.5 minutes every day during the 7days and 21 days. The results were as follows: The concentrations of immunoglobulin G(Ig G) in serum of burn rats on the treated with during the 3minutes laser for 7 days were higher than those of burn and 4.5 minutes laser groups. There were significantly decreased the change of the level of immunoglobulin M(Ig M) in serum of burn rats on the treated with 3 minutes laser for 7 days to the control group, but were significantly increased on the 3minutes and 4.5 minutes laser groups for 21 days to the those of burn and control groups, and the levels of the Ig M on the 3minutes laser group for 21 days were higher than those of 7 days. The concentrations of immunoglobulin E(Ig E) in serun of the burn rats on the experimental and burn groups were significantly lower than those in control group. As above results, The changes of the level of immonoglobulin components in serum have meaningful role in the healing process on the treated with the low pewer intensity of HE-Ne IR laser.

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A study on expansion of lean burn limit with direct injection of the heavy-duty CNG engine (대형 CNG기관의 직접분사화에 의한 희박한계확장)

  • Park, Jung-Il;Chung, Chan-Moon;Noh, Ki-Chul;Lee, Jong-Tai
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.3282-3287
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    • 2007
  • Lean combustion is one of the most promising method for increasing engine efficiency and reducing the exhaust emission from SI gas engines. Due to the possibility of partial burn and misfire, however, under lean burn operation, stable flame kernel formation and fast burn rate are needed to guarantee a successful subsequent combustion. Experiment data were obtained on a single-cylinder CNG fueled SI engine to investigate the effect of direct injection, spark timing and variation of injection timing. Experimental results show that lean burn limit is ${\lambda}$=1.3 with port injection, and expansion of lean burn limit ${\lambda}$=1.4 with direct injection method, due to increase of turbulence intensity in cylinder and stratified charge. Combustion duration in lean region is improved by using the variation of injection timing.

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A Case Report of Scald Burns Treated with Pharmacoacupuncture (약침과 한약의 복합 치료를 이용한 탕화상 환자 치험 1례)

  • Jeong, Hyun-Suk;Nam, Ji-Sung;Lee, Dae-Hyun;Jang, In-Soo;Seo, Eui-Seok
    • Journal of Pharmacopuncture
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    • v.12 no.3
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    • pp.89-95
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    • 2009
  • We report the case of a 65-year-old female with burn injury from scalds. She was observed with a burn injury of the right arm and leg that occurred 6 days before. She was treated with pharmacoacupuncture Soyeom, and herb medicine daily for 3 weeks. After Twenty days, burn wound size was reduced and tissue regeneration was accelerated. In conclusion, it is our belief that pharmacoacupuncture and herb medicine is effective to treat burn injury, and future studies will be required to ascertain this method on burn injury.

Plasma Lactate Clearance as Early Predictors of Morbidity in Major Burn Patients (중증 화상 환자 예후 예측의 조기인자로서 젖산 제거율의 유용성)

  • Lee, Seunghyun;Lee, Hyungjoo;Yoo, Kyungtak
    • Journal of the Korean Burn Society
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    • v.22 no.2
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    • pp.25-29
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    • 2019
  • Purpose: This study was performed to investigate the effect of plasma lactate clearance as predictive factor of major burn patients. Methods: A retrospective review was performed on 119 patients from January 2014 to December 2018, who were admitted as severe burn patients to ICU unit. Plasma lactate was measured upon admission to the hospital and 24hrs after admission. And, hospital day, ICU day, TBSA (Total Body Surface Area) and numbers of surgical intervention were collected after admission. Results: Higher lactate clearance showed negative statistical correlation with survival, hospital day, ICU day & number of surgical interventions. Conclusion: In this study, 24hr lactate clearance might be used as predictor of clinical prognosis following major burn injury.

Rhombus Subcutaneous Pedicle Skin Flap for Reconstruction of Linear Depressed Postburn Scar Band (능형 피하경 피판을 사용한 사지부 화상후 구축성 함몰 Scar Band 재건)

  • Kim, Dong Chul;Kim, Ji Hoon;Yu, Sung Hoon;Shin, Chi Ho;Lee, Chong Kun
    • Journal of the Korean Burn Society
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    • v.23 no.1
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    • pp.25-29
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    • 2020
  • This paper presents our clinical experiences for reconstruction of the linear depressed postburn scar band by rhombus subcutaneous pedicle skin flap (RSPF). We report new RSPF, it's versatility, and effectiveness for correction of the mild to moderate linear depressed postburn scar band. To correct the postburn scar band, we have newly designed the Rhombus Subcutaneous Pedicle Skin Flap (RSPF), which is made as rhombus-shaped skin flap on the inside of scar band. After excision of burn scar band, the each vertex of RSPF flap is advanced into the skin defects at apex of extended skin incision, which is starting from the upper and lower portion of the removed burn scar band at a near right angle. This flap can add more extra skin to adjacent superior and inferior area of excised scar band. We have experienced 2 cases of RSPF for reconstruction of linear depressed postburn scar band deformities in lower extremity. After 3 weeks to 3 months postoperative follow ups, relatively satisfactory results were obtained in all cases. We had successfully reconstructed the linear depressed postburn scar postburn band of lower extremity using the rhombus subcutaneous pedicle skin flap. For the correction of mild to moderate sized linear depressed postburn scar band deformities in extremity, the RSPF is simple, and very effective without donor morbidity.