• Title/Summary/Keyword: 폐 전이

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Study on Production of Glycerol Derivative from Bioglycerol (바이오디젤 부산물인 폐글리세롤을 이용한 유도체 생산에 관한 연구)

  • Ryu, Young-Bok;Lee, Sun-Do;Lee, Man-Sig
    • Proceedings of the KAIS Fall Conference
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    • 2010.11a
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    • pp.298-300
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    • 2010
  • 화석 연료인 석유, 천연가스, 석탄의 점진적 고갈이 예상됨에 따라 전 세계는 석유와 유사한 성질을 갖는 바이오 오일을 에너지원 및 화학원료로 사용하려는 노력이 증가하고 있다. 바이오 오일 활용분야 중 가장 큰 부분을 차지하고 있는 것은 바이오 디젤로 식물성 오일과 알콜의 전이에스테르화 반응에 의하여 생산되며, 바이오 디젤 1톤당 100kg의 글리세롤이 부산물로 생성된다. 본 연구에서는 바이오 디젤 부산물인 폐글리세롤을 이용하여 다양한 유도체의 생산 및 그 유도체의 가능성에 대하여 살펴보았다.

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Biodiesel Production from Lard & Beef Tallow Using Various Catalyst (돈지 및 우지 추출오일의 촉매 종류에 따른 바이오디젤 생산 특성)

  • Kim, Deogkeun;Lee, Youngjae;Park, Jiyeon;Park, Soonchul;Lee, Jinsuk
    • 한국신재생에너지학회:학술대회논문집
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    • 2011.05a
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    • pp.177.1-177.1
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    • 2011
  • 국내 바이오디젤의 원료로 사용되는 식물성 오일은 거의 전량이 수입된 것으로 원료를 자급화 하기 위한 방안으로 국내 동물성 폐자원을 이용한 바이오디젤 연구가 활발히 진행되고 있다. 본 연구에서는 전자레인지를 이용해 동물성 폐자원인 폐돈지 및 폐우지로부터 오일을 추출 후 물성을 분석하고 전이에스테르화 반응을 진행하였으며 바이오디젤 제조 특성을 조사하고자 하였다. 전이에스테르화 반응에 사용되는 염기 촉매를 몇가지 선정하여 각각의 촉매에 따른 바이오디젤의 반응특성을 메탄올 양을 변화시키며 조사 실험하였다. 기존에 사용된 바이오디젤 제조 촉매는 KOH를 주로 사용하였으며 본 연구에서는 KOH, NaOH, $NaOCH_3$를 촉매로 사용하여 오일질량 대비 0.8~1.2%의 촉매를 사용하였으며 메탄올의 양은 오일 몰수 대비 6:1~12:1의 비율로 사용하여 반응시간에 따른 반응특성과 제조 바이오디젤의 물성을 분석해 각 촉매에 따른 바이오디젤 생산 특성을 비교분석하였다.

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Mucoepidermoid Carcinoma of the Right Lower Lobe Bronchus - A case report- (우하엽 기관지에서 발생한 점막 표피양 종양의 수술 치험 -1예 보고-)

  • 김연수;김욱성;장우익;주미;류지윤
    • Journal of Chest Surgery
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    • v.37 no.11
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    • pp.955-958
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    • 2004
  • Mucoepidermoid carcinoma is an uncommon lesion that accounts for approximately 1% of primary malignant bronchial gland tumors and less than 0.2% of all lung neoplasm. This tumor presents with symptoms of bronchial irritation or obstruction. Distant metastasis is uncommon, therefore complete surgical resection is the treatment of choice. The prognosis of tumor correlates with on the histologic grade of tumor. We experienced mucoepidermoid carcinoma in a 15 year-old girl with symptoms of cough and blood tinged sputum. The patient underwent successful removal of tumor by bilobectomy via explorothoracotomy after chest CT and bronchoscopic biopsy.

Synchronous Primary Lung Cancer with Different Squamous cell Carcinoma - One Case Report - (이형 편평상피암을 가진 동시성 원발성 폐암 치험 - 1례 보고 -)

  • 김도형;조현민;강두영;손국희;이두연
    • Journal of Chest Surgery
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    • v.34 no.10
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    • pp.805-808
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    • 2001
  • The synchronous primary lung cancer is very rare cancer, proportion of synchronous lung cancer is about 1∼2% of total lung cancer, When pathologic type is same, preoperative diagnosis is very difficult and it may be misdiagnosed as lung to lung metastasis. We have experienced synchronous primary lung cancer of heterogenous squamous cell carcinoma.

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Bronchial Hyperresponsiveness in Chronic Renal Failure Undergoing Hemodialysis (만성 신부전 환자에서 혈액투석 전후의 기관지 과민반응검사)

  • Hwang, Young-Sil;Shim, Dae-Suk
    • Tuberculosis and Respiratory Diseases
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    • v.42 no.4
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    • pp.548-554
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    • 1995
  • Background: Cardiogenic pulmonary edema increases nonspecific airway responsiveness in humans and animals. Increased extravascular lung water from overt pulmonary edema to subclinical interstitial edema is a common finding in patients with chronic renal failure. Several studies carried out to assess pulmonary function disturbances in this condition have documented a reduction in forced expiratory volume that usually reverses after hemodialysis, suggesting airway edema as the underlying mechanism. This interstitial edema may also lead to nonspecific bronchial hyperresponsiveness. We hypothesized that patients with chronic renal failure may present nonspecific bronchial hyperresponsiveness due to subclinical interstitial pulmonary edema. Methods: We studied 18 chronic renal failure undergoing regular hemodialysis 3 times a week(New York Heart Association Class II) without concomittent disease. These patients were checked pulmonary function test and metacholine provocation test before hemodialysis and same procedure was repeated if responsive, after hemodialysis. Results: 1) 12 out of 18 patients before hemodialysis were reactive in metacholine provocation test(66.7%) before hemodialysis. This airway hyperresponsiveness were decreased after hemodialysis. 2) Pulmonary function was improved after hemodialysis and change in $FEV_1$ was correlated with change in weight(r=-0.62, p<0.01). 3) There was a close correlation between log $PD_{20}$ and $FEF_{25}$, which is one of the variables of the peripheral airways(r=0.58, p<0.05). Conclusion: We speculated interstitial pulmonary edema may play a significant role in bronchial hyperresponsiveness and lung function impaired in patients with chronic renal failure.

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폐소듐 처리 연구

  • Kim, Byeong-Ho;Nam, Ho-Yun;Geum, Dong-Gwon;Choe, Yong-Ho;Im, Gwang-Muk;Jeon, In
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2012.05a
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    • pp.273-274
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    • 2012
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Growth of Plug Seedlings of Petunia 'Madness Rose' and Pansy 'Magestic GT' in Various Mixtures of Recycled Horticultural Media (원예용 폐배지를 재활용한 혼합배지에서 페튜니아와 팬지 플러그묘의 생육)

  • Shin, Woo Gun;Jeong, Byoung Ryong
    • Horticultural Science & Technology
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    • v.18 no.4
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    • pp.523-528
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    • 2000
  • Plug seedlings of Petunia hybrida 'Madness Rose' and Viola tricolor 'Magestic GT' were cultured in media containing various volume ratios of recycled plug medium, recycled coir, perlite, granular rockwool, and vermiculite for 36 and 43 days after sowing, respectively. Recycled plug medium and recycled coir were steam pasteurized for 30 minutes at $120^{\circ}C$ and 1.5 atmosphere. An unused commercial plug medium (Tosilee, pH 5.10, EC $0.12mS{\cdot}cm^{-1}$ at 1:5 dilution, v/v, Shinan Grow Co.) was used as the control. The pH of different media before and after growing seedlings was similar. Medium EC was high when recycled plug medium was included. Recycled coir (75%)+vermiculite (25%) mixture also had high medium EC. However, medium EC was low when granular rockwool or perlite was included. Height, root formation, shoot dry weight and leaf count (ea) of petunia, and height, total fresh and dry weights, and shoot fresh and root dry weights of pansy were the highest in recycled coir (75%)+perlite (25%) mixture. Recycled coir was better than recycled plug medium in physicochemical properties, and also in resultant plant growth. It is recommended to include perlite or granular rockwool when plug media including recycled horticultural media are prepared.

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Pulmonary Artery Intimal Sarcoma with Lung Metastasis (폐 전이를 동반한 주폐동맥의 혈관 내막 육종)

  • 김인섭;정성철;김우식;배윤숙;신용철;정승혁;유환국;이정호;김병열
    • Journal of Chest Surgery
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    • v.36 no.12
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    • pp.979-984
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    • 2003
  • Primary pulmonary artery sarcoma is very rare disease. The diagnosis of pulmonary artery sarcoma is frequently confused with pulmonary embolism because its clinical symptom and radiologic findings are similar with pulmonary embolism. It was often diagnosed at autopsy as it progresses rapidly. So Pulmonary artery sarcoma must be suspected if the origin of thrombus is not known and anticoagulation therapy is not effective. In this case, a 57 years old man who has been diagnosed pulmonary embolism was transferred to our department because of ineffective anticoagulant therapy and its worsening lesion despite of 5 month-therapy. In operative findings, it was pulmonary artery sarcoma that invaded to pericardium. There was angiosarcoma in right pulmonary artery, which metastasized to lung parenchyme. Under cardiopulmonary bypass, we resected main pulmonary artery and right lung. The Gore-tex graft was interposed between main pulmonary artery and left pulmonary artery. He was discharged after chemotherapy.

A Study on the Separation of Mercury from Spent Mercury Batteries (단추형 폐수은 전지로부터 수은 분리에 관한 연구)

  • 손정수;박경호
    • Resources Recycling
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    • v.3 no.1
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    • pp.32-37
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    • 1994
  • Mercury in spent button type batteries can be separated and recovered with vacuum distillation method. It was found that mercury in the battery began to distill at $150^{\circ}C$ and organic substanced like a packing material was decomposed at$ 300^{\circ}C$. More than 99.9% of mercury contained in the battery was distiled and separated at about $250^{\circ}C$ and 20 torr with 8 hours' reaction time. The dissolution tests of the residue after distillation showed that mercury concentration in the solution were lower than 5 ppb and this values satisfied the environ-mental condition. Also as the furnace heating rate was above $15^{\circ}C$/min, it was found that the spent battery was destroyed because of increased pressure in the battery inside.

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Metastatic Tumors in Supraclavicular Lymph Node - Pathologic Analysis of 125 Cases - (쇄골상부 림프절의 전이성 종양 - 125예에 대한 병리조직학적 분석 -)

  • Kim, Dong-Sug;Nam, Hae-Joo;Choi, Won-Hee;Lee, Tae-Sook
    • Journal of Yeungnam Medical Science
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    • v.8 no.2
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    • pp.70-75
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    • 1991
  • Supraclavicular lymph nodes are unique in that they can attract metastases from almost anywhere in the body and most common sites of metastasis from an unknown primary source. 125 cases which had been diagnosed as metastatic supraclavicular lymph node during the period between May 1983 and August 1991, were analysed pathologically, and the following distinctive characteristics could be outlined : 1) The most frequent sites of metastasis from primary lesions are lunge(43%), stomach(23%), lymphoreticular(6%), biliary(5%), esophagus(2%), and pancreas(2%). 2) Histologic examination of metastatic supraclavicular lymph node revealed adenocarcinoma(57%), squamous cell carcinoma(12%), undifferentiated carcinoma(9%), small cell carcinoma(7%), malignant lymphoma(6%), malignant melanoma(1%) and undetermined carcinoma(8%). 3) In cases that histologic type was adenocarcinoma, the most frequent primary sites were stomach(38%), lung(27%) and biliary(8%). 4) In cases that histologic types were squamous cell caricinoma, undifferentiated carcinoma, small cell carcinoma and undetermined carcinoma, the most frequent primary site was lung.

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