대구시의 지역별 생활쓰레기 성상 및 특성

노숙현,이동훈,최충렬,박만,박병윤,최정 한국환경과학회 2003 한국환경과학회지 Vol.12 No.4

This study was conducted to provide the basic information to know reasonable method for the removal and treatment of municipal solid wastes(MSWs). MSWs four different sources(apartment, residence, commerce, office/industry) in Daegu city were collected, and bulk density, physical composition, moisture, combustible, ash, elements and heating values were investigated. The values of bulk density were at range of 0.30~0.41ton/㎥. The percentages of foods, papers, vinyls/plastics, textiles, rubbers/leathers, metals and glasses/ceramics of wet muncipal solid wastes from three sources except office/industry were at range of 27.3~46.4&, 21.2~38.4%, 10.3~11.9%, 3.8~5.2%, 0.5~1.7%, 6.9~8.7% and 1.9~2.6% respectively. The percentages of papers, foods, vinyls/plastics, textiles, rubbers/leathers, metals and glasses/ceramics of dry muncipal solid wastes from three sources except office/industry were at range of 21.2~40.4%, 14.2~30.1% 15.2~17.8%, 4.0~6.0%, 0.9~2.8%, 12.2~14.1% and 3.1~3.7% respectively. The moisture contents of foods, woods, textiles and papers in wastes were at range of 65.7~76.2%, 34.6~50.0%, 22.2~44.8 and 30.6~44.4% respectively. The carbon contents of vinyls/plastics, rubbers/leathers, textiles, woods, papers and foods in wastes were at range of 75.88~79.87%, 58.24~70.74%, 45.23~51.63%, 42.29~45.58%, 40.19~48.4% and 25.86~36.25% respectively. The low heating values of foods, papers, woods, textiles, rubbers/leathers and vinyls/plastics by Dulong's law were at range of 178~1,353㎉/㎏, 770~1,660㎉/㎏, 995~1,629㎉/㎏, 2,133~2,432㎉/㎏, 4,200~7,275㎉/㎏ and 6,384~8,722㎉/㎏ respectively, and the high heating values of them were at range of 782~2,056㎉/㎏, 2,459~3,314㎉/㎏, 3,056~3,592㎉/㎏, 4,381~5,087㎉/㎏, 5,005~8,066㎉/㎏ and 10,032~10,739㎉/㎏ respectively.

무균성 수막염 환자에서 분리한 enterovirus의 혈청형 및 계통발생학적 분석

이정희,안병윤,반성환,김상현,김의종 대한임상미샐물학회 2000 Annals of clinical microbiology Vol.3 No.2

급성 골수성 백혈병 환자에서 관해 유도 항암 화학요법 후 발생한 베르니케 뇌증

황진원,정재현,서광원,최병진,송영진,김종윤,이은지,임홍규,이상민 인제대학교 2009 仁濟醫學 Vol.30 No.-

Wernicke's encephalopathy is characterized by the triad of ocular symptoms, ataxia, and mental confusion and neuropsychiatric condition generally caused by acute thiamine deficiency. Although it is common in the severe alcoholics, several other causes also have been identified, such as total parenteral nutrition (TPN) use, hyperemesis gravidarum, anorexia nervosa, hemodialysis, uremia, and acquired immunodeficiency syndrome(AIDS). Chemotherapy in patient with malignanacy and long term total parenteral nutrition following bone marrow transplantation are related with Wernicke's encephalopathy. A 48-year-old woman had been treated with Daunorubicin and Cytarabine for remission induction chemotherapy of acute myeloblastic leukemia and intravenous hyperalimentation due to persistent hematochezia and ileus caused by infiltration of leukemic cell in terminal ileum. She suddenly complained of diplopia, tremor, and mental confusion at 32th day after chemotherapy and generalized tonic-clonic seizure at 34th day after chemotherapy. The diagnosis of Wernicke's encephalopathy was made with clinical presentations and brain MRI. Brain MR T2-weighted & Flair image revealed a high signal intensity lesions bilaterally at the medial thalamus and peri-acueductal grey matter of the midbrain. The patient was successfully treated with vitamin B1. We presented a case of acute Wernicke's encephalopathy developed after remission induction chemotherapy followed by intravenous hyperalirnentation in a patient with acute myeloblastic leukemia.

신생아에서 용질배설에 관한 연구

김경범,박재현,최병민,이현희,윤재균 관동대학교 의과학연구소 2000 關東醫大學術誌 Vol.4 No.1

Purpose : Determination of urinary concentration in neonate is mandatory for precise management of fluid and electrolyte requirements. Although measurement of urine specific gravity has been proposed far monitoring fluid requirements, the reliability of specific gravity does not accurately predict urine osmolalities in the neonate period. So specific gravity should be checked by measuring the osmolality. Also the urinary excretion of creatinine has been used for the assessment of hydration state. We present the result of specific gravity, urine osmolality, urine creatinine in a spot urine sample during the first week of life as a reliable reference standard. Methods : Spontaneously-voided urine sample were obtained in 40 full term neonates. Two urine samples were available with a interval of 4 to 7days (A: 1st day, B: 4 - 7days), Urine sample was tested for specific gravity with a strip test. Also urinary osmolality, urinary creatinine, urinary creatinine/osmolality ratio were measured. Results : The mean of specific gravity tested by the strip test was 1.006±0.0040 (A) , 1.005±0.0036 (B). The mean of urine osmolality and creatinine were 177.7 ± 103.0 and 30.9±21.6 (A), 145.7 ±90.3 and 26.4± 17.7 (B). The mean of excretion rate of urine creatinine/osmolality ratio was 18.2 ±8.5 (A), 19.4 ±9.1 (B). There was correlation between urine specific gravity and osmolality in neonate(r=0.833(A), 0.842(B) p<0.001). Urinary creatinine/osmolality levels of the first urine samples were closely correlated with the second samples (r=0.617, p<0.001). Conclusion : Specific gravity of urine was enough to predict the osmolality in neonate. But Specific gravity should be checked by measuring the osmolality of urine. Urine osmolality and creatinine were spread over a wider range and did not used to urinary excretion of solute in neonate. Urinary creatinine/osmolality ratio can be used to standadise the urinary excretion on solute in the first week of life.

Concordance Analysis를 이용한 임도개설의 순위결정에 관한 연구

차두송,김종윤,정도현,지병윤 江原大學校 森林科學硏究所 1997 Journal of Forest Science Vol.13 No.-

이 논문은 Scoring법의 Concordance Analysis를 이용하여 전국 11개 지역을 대상으로 임도노선의 개설순위를 결정하였다. 그 결과 우위성 지수(Concordance Index)에 의한 임도개설 우선순위는 대상지역 9 > 5 > 11 > 10 > 6 > 1 > 3 = 4 > 2 > 7 > 8으로 나타났으며, 열세성지수(Dis-concordance Index)에 의한 임도개설 우선순위는 대상지역 9 > 3 > 4 > 5 > 10 > 8 > 1 > 11 > 6 > 7 > 2로 나타났다. By the means of concordance analysis among scoring methods, this study was to determine the priority order of forest road construction in 11 areas. The results have shown that the Priority order by concordance index was ranked by area 9, 5, 11, 10, 6, 1, 3=4, 2, 7 and 8, and that by dis-concordance index by area 9, 3, 4, 5, 10, 8, 1, 11, 6, 7 and 2.

골수구성 백혈병 환자에게 발생한 결핵성 림프절염

이창섭,송진수,최평균,조재현,방지환,박경화,박완범,김홍빈,김남중,윤성수,박선양,김병국,오명돈,최강원 대한감염학회 2006 감염과 화학요법 Vol.38 No.5

혈액질환 가운데 결핵 발생이 증가한다고 알려진 것은 호지킨 림프종을 포함한 림프증식성질환 그리고 모양세포성 백혈병 등이 있다. 또한 동종 골수이식을 받은 환자에서도 결핵은 증가한다고 알려져있다. Kaplan 등은 골수구성 백혈병 환자에서 결핵 발생이 증가한다고 보고하였다. 그러나 골수구성 백혈병 환자에서 결핵의 발생이 증가하는 이유에 대해서는 아직까지 정확하게 밝혀지지 않았다. 저자들이 2년 동안 후향적으로 조사한 180명의 성인 골수구성 백혈병 환자들 가운데 결핵이 발생한 환자는 4명이었고, 발생 부위는 모두 림프절이었다. 결핵은 골수구성 백혈병의 특정 아형에만 국한되어 발생하지 않았지만, 50%에서 FAB 분류에 의한 M4였다. 림프절이 종대된 골수구성 백혈병 환자에서 특히, 결핵의 유병율이 높은 나라에서는 결핵성 림프절염도 감별진단에 포함시켜야 한다. During the neutropenic phase, leukemia patients receiving chemotherapy are prone to bacterial and, fungal infections; occasionally mycobacterial, viral and protozoal organisms may also cause infections. Mycobacterium tuberculosis infection was reported very rarely in these patients. This report describes four patients with M. tuberculosis infection identified from 185 adult patients who were diagnosed myelogenous leukemia between January 2003, and December 2004. There was no patient with M. tuberculosis infection from 44 lymphoid leukemia and 11 acute biphenotypic leukemia patients. Sites of infection were all lymph nodes. Three among four patients were presented with lymphadenopathy at initial diagnosis of leukemia, and the other one presented with lymphadenopathy after induction chemotherapy. There was no patient presented with lymphadenopathy during the neutropenic phase. Tuberculous lymphadenitis was presented in a patient with three acute myelogenous leukemia (FAB class 2 M4, 1 M2) and a chronic myelogenous leukemia, accelerated phase. An acute myelogenous leukemia patient had a leukemic cell and tubercle bacilli in the same lymph node. Tuberculosis should also be included as a differential diagnosis in myelogenous leukemia patient with lymphadenopathy, especially in the countries in which the disease is endemic.

Characteristics of Sulfide Stress Cracking of High Strength Pipeline Steel Weld by Heat Input

Yoon, Byoung-Hyun The Korean Welding and Joining Society 2018 대한용접·접합학회지 Vol.36 No.3

The sulfide stress cracking (SSC) resistance of API X65 grade steel weldment has been studied using SSC test in NACE TM-0177 method A and the applied load was 72-108 % of yield strength. The X65 grade pipe steel consisted of fine-grained ferrite and a small volume fraction of pearlite. To investigate the effect of welding process on microstructure and hardness distribution, the submerged arc welding (SAW) were performed with two electrodes. Multi pass SAW for both sides of plates was carried out with a heat input of about 59 kJ/cm -100 kJ/cm. The microstructure of SAW joint was composed with ferrite, pearlite and some M-A constituent. The low carbon thermo-mechanical control process (TMCP) type steel used for SAW showed softening behavior in the HAZ adjacent to base metal. The SSC testing revealed that the API X65 SAW low heat input weld was suitable for sour service, satisfying the NACE requirements. All the specimens failed during or after SSC tests showed that the crack was initiated and propagated along the intercritical heat affected zone (ICHAZ) region as a typical stress oriented hydrogen induced cracking (SOHIC) type. By suppressing softening in the ICHAZ region, the SSC resistance of low carbon TMCP steel welded joints could be more improved.

Characteristics of Sulfide Stress Corrosion Cracking of High Strength Pipeline Steel Weld by Heat Input5p)

Byoung-Hyun Yoon(윤병현),Woong-Sung Jang(장웅성) 대한용접·접합학회 2016 대한용접학회 특별강연 및 학술발표대회 개요집 Vol.2016 No.11

Complete Spinal Cord Injury Treatment Using Autologous Bone Marrow Cell Transplantation and Bone Marrow Stimulation with Granulocyte Macrophage-Colony Stimulating Factor: Phase I/II Clinical Trial

Yoon, Seung Hwan,Shim, Yu Shik,Park, Yong Hoon,Chung, Jong Kwon,Nam, Jung Hyun,Kim, Myung Ok,Park, Hyung Chun,Park, So Ra,Min, Byoung-Hyun,Kim, Eun Young,Choi, Byung Hyune,Park, Hyeonseon,Ha, Yoon Wiley (John WileySons) 2007 Stem Cells Vol.25 No.8

<P>To assess the safety and therapeutic efficacy of autologous human bone marrow cell (BMC) transplantation and the administration of granulocyte macrophage-colony stimulating factor (GM-CSF), a phase I/II open-label and nonrandomized study was conducted on 35 complete spinal cord injury patients. The BMCs were transplanted by injection into the surrounding area of the spinal cord injury site within 14 injury days (n = 17), between 14 days and 8 weeks (n = 6), and at more than 8 weeks (n = 12) after injury. In the control group, all patients (n = 13) were treated only with conventional decompression and fusion surgery without BMC transplantation. The patients underwent preoperative and follow-up neurological assessment using the American Spinal Injury Association Impairment Scale (AIS), electrophysiological monitoring, and magnetic resonance imaging (MRI). The mean follow-up period was 10.4 months after injury. At 4 months, the MRI analysis showed the enlargement of spinal cords and the small enhancement of the cell implantation sites, which were not any adverse lesions such as malignant transformation, hemorrhage, new cysts, or infections. Furthermore, the BMC transplantation and GM-CSF administration were not associated with any serious adverse clinical events increasing morbidities. The AIS grade increased in 30.4% of the acute and subacute treated patients (AIS A to B or C), whereas no significant improvement was observed in the chronic treatment group. Increasing neuropathic pain during the treatment and tumor formation at the site of transplantation are still remaining to be investigated. Long-term and large scale multicenter clinical study is required to determine its precise therapeutic effect. Disclosure of potential conflicts of interest is found at the end of this article.</P>

Characteristics of Sulfide Stress Cracking of High Strength Pipeline Steel Weld by Heat Input

Byoung-Hyun Yoon 대한용접·접합학회 2018 대한용접·접합학회지 Vol.36 No.3

The sulfide stress cracking (SSC) resistance of API X65 grade steel weldment has been studied using SSC test in NACE TM-0177 method A and the applied load was 72-108 % of yield strength. The X65 grade pipe steel consisted of fine-grained ferrite and a small volume fraction of pearlite. To investigate the effect of welding process on microstructure and hardness distribution, the submerged arc welding (SAW) were performed with two electrodes. Multi pass SAW for both sides of plates was carried out with a heat input of about 59 kJ/cm -100 kJ/cm. The microstructure of SAW joint was composed with ferrite, pearlite and some M-A constituent. The low carbon thermo-mechanical control process (TMCP) type steel used for SAW showed softening behavior in the HAZ adjacent to base metal. The SSC testing revealed that the API X65 SAW low heat input weld was suitable for sour service, satisfying the NACE requirements. All the specimens failed during or after SSC tests showed that the crack was initiated and propagated along the intercritical heat affected zone (ICHAZ) region as a typical stress oriented hydrogen induced cracking (SOHIC) type. By suppressing softening in the ICHAZ region, the SSC resistance of low carbon TMCP steel welded joints could be more improved.