??同位元素에 의한 火山灰土壤內 改良牧草의 燐酸肥料 利用效率에 關한 硏究

金文哲,宋成俊,鄭昌朝 제주대학교 방사능이용연구소 1985 연구보고 Vol.1 No.-

火山灰土壤에서 orchardgrass와 ladino clover의 熔成燐肥와 燐鑛石의 利用效率을 究明하기 爲하여 野外 Pot試驗(試驗1)과 土壤內 置換成 燐酸(E-value), 可變態 燐酸(L-value) 測定을 爲해 ??同位元素를 利用하여 實驗室內 實驗(試驗2)을 施行하였다. 1. 牧草의 乾物收量은 濃暗褐色土壤과 黑色土壤에서 燐酸의 施用水準 增加함에 따라 增加되었으며 ?? 水準에서 顯著한 增加率을 나타내었다. 肥料의 種類에 따른 乾物增收 效果는 熔成燐肥가 모든 處理에서 優秀하였으나 黑色土壤에서 clover는 燐鑛石에 依해 增加效果를 나타냈다. 2. 牧草內 燐酸含量은 黑色土壤에서 施肥水準이 높아짐에 따라 有意的인 增加를 가져왔으며 濃暗褐色土壤에서는 clover의 單播 또는 混播에서 含量이 높아지고 있었다. 牧草內의 無機物 中 Na의 含量은 禾本科에 比해 荳科가 높았으며 K의 含量은 濃暗褐色土壤이 黑色土壤에 比해 높았다. 그러나 Ca와 Mg의 含量은 肥料水準이나 草種間에 큰 影響을 받지 않았다. 3. 供試土壤에 ?? 處理後 192時間의 E-value는 黑色土壤(5,552㎎/ℓ), 非火山灰土壤(1,125㎎/ℓ), 濃暗褐色土壤(801㎎/ℓ)의 順位였다. ??의 土壤吸着率은 黑色土壤에서 處理後 4日에 100%로 가장 빨랐고 濃暗褐色土壤과 非火山灰土壤에서 서서히 이루어져 處理後 8日에 各各 70% 및 80%의 燐酸이 土壤에 吸着되었다. L-value는 모든 土壤에서 clover가 orchardgrass보다 높았으며 熔成燐肥의 施用은 禾本科에서, 燐鑛石은 clover의 L-value를 높여 주었다. The growth responses of Dactylis glomerata and Trifolium repens to Fused-P and Rock-P were compared on the brown and black volcanic grassland soil in the outdoor pot experiment (Experiment 1). The E-value (Exchangeable value) of two soil types and L-value (Labile phosphorus value) measurements. using ?? tracer for P-uptake by two pasture species, were determined (Experiment 2). 1. Dry matter yield of orchardgrass and ladino clover on brown and black soil was increased according to level of fertilizer applied. There was marked increase in dry matter yield at the application rate of ?? per hectare. Influence of fertilizer on dry matter yield showed that Fused-P was more effective in all treatments with the exception of black soil with Rock-P. 2. The phosphorus content in the plant increased significantly according to the level of fertilizer applied on black soil. A similar tendency was observed in clover when sown singly or mixed on brown soil. Clover contained more Na than orchardgrass and the K content in the plant was higher in plant grown in brown soil than in black soil. No significant changes in content of Ca and Mg in the plant occured even different levels of fertilizer were used. 3. Exchangeable value (E-value) at 192 hours after ?? treatment was descending order, black soil ; 5552㎎/ℓ, non-volcanic soil ; 1125㎎/ℓand brown soil ; 801㎎/ℓ. Rapid P-binding kinetic in the soil solution was detected in the black soil (100% absorptive P within 4 days) and slow P-binding was observed in brown and non-volcanic soil with 70% and 80% absorptive P within 8 days of treatment respectively. L-value of pasture species was greater in orchardgrass than in clover on all soil types. It appears that Fused-P was more effective in the improvement of L-value of grass and Rock-P was more effective in the improvement of L-value of grass and Rock-P was influenced more by the L-value of clover.

오프라인 프로그램을 이용한 로봇 비전시스템

송달섭,김문수 동의공업대학 2000 論文集 Vol.26 No.1

In this paper a manufacturing robot system is developed for the purpose of increasing the flexibility against changing product model. This system performs the soldering task. The module to solder the circuit is composed of robots(AC-L5) and automatic solder machine (SOLDER KING Ⅲ), is programmed 0LP(off-line programming) technique. The general kinematic and dynamic features of robot are analyzed to apply the error calibration of the AC-1.5 and the real assembly line. Robot teaching by using vision image at eye-on-hand reduces the setup time to cope with changing product model. The developed cells from the above results were installed and operated in the real camera back-cover assembly line where the work time and the soldering quality were improved compared to an ordinary cell using SCARA robot and the rate of the bad product is reduced in the process. Also, the task teaching in off-line program is 50 times faster than an ordinary on-line teaching method after the completion of one setting, contribution to the increase and efficiency of production and tasks.

Papillon-Lefevre Syndrom의 임상 및 미생물학적 검사와 치료

송요한,김문현,김형섭,김재곤,백병주 大韓小兒齒科學會 1998 大韓小兒齒科學會誌 Vol.25 No.2

The Papillon-Lefevre Syndrome(PLS), a disease with autosomal recessive inheritance, is characterized by diffuse hyperkeratosis of the palms and soles, mostly prepubertal periodontitis and premature loss of primary and permanent dentition. The etiology of the destruction of periodontal tissues has not been completely clarified. In recent years, two main factors are suggested to be responsible for tooth loss : firstly, the presence of gram negative microorganisms in the periodontal pockets of the patients. The other factor suggested is cellular deficiency in chemotaxic and phagocytic function of neutrophylic granulocytes. Resent data suggestes that mechanical debridement in conjunction with antibiotic therapy may be successful in periodontal management of Papillon-Lefevre Syndrome, particularly if administered early. In this study, a Papillon-lefevre syndrome patient was studied clinically, radiologically, histopathologically and microbiologically. 5 years female patient with gingival swelling and destruction of periodontal structure on the whole dentition were examined and palmar and plantar hyperkeratosis were can be seen. On microbiological analysis, Actinobacillus actino-mycetemcomitans was performed. Concurrently, the children recieved extraction of maxillary anterior teeth and construction of removable prosthetis. The combination of professional oral hygiene care and antibiotic therapy improved the dermatologic and peridontal condition.

플라이애쉬와 머드를 대체 혼입한 콘크리트의 특성에 관한 실험적 연구

안문기,이정섭,송하영,김을용 大田産業大學校 2002 한밭대학교 논문집 Vol.19 No.-

The purpose of this study is to inverstigate the influence of proportioning methods of fly ash and mud on the workability and the engineering properties of concrete. The main part of this experiment is the comparison and analysis of the basic properties of the concrete replaced and mixed with fly ash and mud. The test items are compressive strength and non-destructive test in hardened concrete, also slump, flow, air contents and mixing temperature in fresh concrete according to W/c, replacement ratio of fly ash and mud. The test results are as follows ; 1) As the increase of replacement ratio of fly ash and mud, the workability of concrete is decrease as compared with the plain concrete. 2) As the increase of replacement ratio of fly ash and mud, the compressive strength of concrete is increase as compared with the plain concrete and the non-destructive test results of concrete are better than the plain concrete.

2급 응급구조사의 성인외상환자에 대한 처치의 적절성 평가

장문수,어은경,김상현,김창섭,송근정,박한규,유지영,최동섭 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

In Korea, EMT have two classified subgroup of first and second degree : EMT-P, and EMT. For the beginning, authorization of the first EMT was made in this year through the EMT educational program. There are 8 items which EMT can perform the treatment without the supervision by a physician. But there was no previous report of pertinent assesment of treatment performed by the EMT. There upon authors have conducted review of assessment done by the EMT in EC setting, and proposed the following treatment application can be used by EMT at the field of accident. The study materials include adult trauma patient older than 15 years, and sustained trauma within 48 hours before visiting Ewha University DongDaeMoon Hospital Emergency Deparment. The duration of study was from Apr. 1 1995 to Aug. 31 1995. the study was conducted by 5 certified EMT. The EMT's performance was evaluated by the attending Emergency Medicine physician. The result were as followings ; 1. Among the total 5532 ED visiting patients during the study period, 1267 were adult trauma patients who recieved treatment within 48 hours of injury. 2. Among 1222 out of 1267 patients have completed performed survey. 3. Male to female ratio was 2.6 : 1, age distribution was from 15 to 87 years old and mean age was 34.6 years old. 4. The MOI showed : MVA (33.1%), blunt trauma (29.9%), slip down (16.8%), penetrating injury(15.4%), and miscellaneous (5.7 %), burn (3.1%), falling down injury(2.9 %), bite injury(1.1%) in order. 5. There were 437 cases of survey completed by the EMT. For assessment of mental status of 3 different method : AVPU, 5 scale mental status and GCS, were correlated with EM physician with 99.1%, 98.6%, 97.7 %, respectively. 6. For 320 out of 437 cases of survey completed, 319 patients recieved treatment by the EMT within 30 minute and 1 patient between 30 to 60 minute of an ED arrival. 7. For those 437 cases of survey completed, 266 patient (60.9%) had adequate treatment and 54 patients (12.4%) had inadequate treatment. 67 patient (15.3%) did not received treatment but it was adequate inway, and 50 patients (11.9%) did not received treatment even though patient required treatment. In cases of adult trauma patients, EMT's mental status assessment was correlated with EM physician's assessment. But treatment done by EMT without the supervision of EM physician was adequate only in 76.2 %. Therefore, continuous education and assessment of treatment performed by EMT in needed to improve field treatment by EMT future.

유사체액에서의 전기화학적 처리가 티타늄 표면의 인산갈슘 흡착에 미치는 영향

조국현,김문영,송광엽,배태성,이민호 大韓齒科器材學會 2002 대한치과재료학회지 Vol.29 No.3

This study was performed to examine the effect of electrochemical treatment on the precipitation of apatite-like calcium phosphate in a simulated body fluid. Titanium plates of 20×20×1 ㎣ in dimensions were polished sequentially from #600 to #2,000 emery paper and one surface of each specimen was received an additional polishing sequence through 0.1㎛ alumina paste. To improve the bioactivity of titanium plates, they were electrochemically treated at 100 mA for 20 min in an electrolyte containing the calcium and phosphate ions, and the Hanks' solution with pH 7.4 at 36.5℃ for 30 days, and the surfaces were examined with X-ray diffractometer(XRD), scanning electron microscope(SEM) and X-ray photoemission spectroscopy(XPS). Precipitation of calcium phosphate and CaO were observed on the electrochemically treated titanium surface in a simulated body fluid after treatment at 600℃. Precipitation of calcium phosphate was densified and coarsened with increasing the temperature of the electrolyte solution in the range of 20-80℃. The calcium phosphate contained phosphate in the form of Po₄^3-, HPO₄^2-, and H₂PO₄^-.

상부 조기 위암 환자의 복강경하 상부 위절제술 3례 경험

조규석,김형철,박경규,이문수,송옥평,임철완,신웅진,주종우,유기원 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Background : The reported incidence of early gastric cancer located in the upper portion of the stomach has been increasing with the recent advances in its diagnosis and screening. Recently, we have successfully performed laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without pyloroplasty on three patients with early gastric carcinoma localized to the upper third of the stomach. We describe our modification of this procedure in this report. Method : After creating an surgical pneumoperitoneum, the stomach was mobilized using laparoscopic coagulating shears. Upper half of the greater curvature and three-quarters of the lesser curvature were then dissected along with regoinal D2 lymphadenectomy. This was followed by a 5 cm, longitudinal mini-laparotomy in the upper abdomen, and the construction of the exteriorized stomach with a gastric tube measuring 20 cm long and 4 cm wide. Reconstruction with an esophagogastrostomy was performed using a circular stapler. Result : No post-operative morbidity or mortality was observed in this small series of patients. The average operative time was 250 minutes (range 220-300 minutes), and the average blood loss was 150 ml (range 90-180 ml). The mean number of lymph nodes harvested during these laparoscopic proximal gastrectomies was 24 nodes (range 22-25 lymph nodes). The average postoperative hospital stays was 7.5 days (range 7-8 days). Conclusion : Our technique of laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without phloroplasty offers a minimally invasive technique with the potential of impoving the post-operative quality of life patients with an early-stage proximal gastric cancer.

운행중인 전후 동력형 디젤 동차의 배출가스 특성

강성인,송문석,김문헌 崇實大學校 生産技術硏究所 1998 論文集 Vol.28 No.-

In this paper, exhaust gas emissions fo moving push-pull Semaul diesel hydraulic car are measured as a function of ambient conditions, rail conditions, the chief stations and in the case of arrival and departure ar stations. In result of measurement of exhaust gas emissions, CO adn NO?? emissions are inreased linearly according to increasing of engine speed until 1,500rpm. On the same ambient temperature, CO emission is decreased and NO?? emission is increaed according to increasing of ambient humidity. In the chief station, CO and NO?? are exceeded a limitation of exhaust gas emissions as 2 times and 1.6 times respectively at Chupungtryeong. When the diesel car start at the station, CO and NO?? are approximated and exceeded the limitation.

하악골에 발생한 다발성 중심성 골종 : 증례보고 REPORT OF A CASE

전효상,이문희,정해송,이동근,김성곤,조병욱 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.4

Osteomas are benign tumor composed of mature compact or cancellous bone. Generally, they are classified as peripheral(periosteal) osteoma and central(endosteal) osteoma by origin. Osteomas are essentially restricted to the craniofacial skeleton and are rarely diagnosed in other bones. Most jaw osteomas are detected in young adults and are generally asymptomatic, solitary lesion. The authors present a case of a endosteal osteoma of the mandible. The lesion was located beneath both the mandibular first premolars, about 2.5㎝×1.5㎝ size. Surgical excision of the lesion was performed and we obtained good result after operation.

항정신병약물 사용 중인 정신분열병 환자에서 올란자판으로의 교체 방법에 관한 연구(II) : Comparison of Safety 안전성 비교

안용민,권용실,권준수,민성호,박두병,양문정,소형석,송종호,신윤식,우행원,유범희,이홍석,정한용,한창환,김용식 大韓神經精神醫學會 2002 신경정신의학 Vol.41 No.5

연구목적: 이 다기관 공동임상연구는 사용 중인 항정신병약물을 ’직접 교체 방법’또는 ’시작-감량 교체 방법’중 한 가지 방법으로 올란자핀으로 교체한 후, 안정성 측면에서 두 교체 방법 간의 비교와 교체후의 변화를 관찰하기 위한 것이다. 방법: 국내 13개 병원의 입원 및 외래에 내원한 환자들 중 ICD-10 지단기준으로 정신분열병에 해당되며, 임상적으로 항정신병약물 교체가 필요한 환자를 대상으로 하였다. 두 가지 교체 방법 중 한 가지를 무작위로 피험자에 적용하였으며, ’직접 교체 방법’에 배정된 경우에는 사용중인 항정신병약물을 일시에 중단하고 10㎎의 올란자핀을 바로 투여하였고, ’시작-감량 교체 방법’에 배정된 경우는 10㎎의 올란자핀 투여하고 2주에 걸쳐서 기존 약물을 감량하여 중단하였다. 올란자핀 사용기간은 총 6주이며, 용량은 5∼20㎎ 범위로 제한하였다. 한정성 평가를 위해서 체중, 생명징후, 자발적인 이상반응 복, 실험실 검사 그리고 Simpson-Angus Scale(SAS), Barnes akathisia rating scale(BARS), Abnormal involuntary movement scale(AIMS). Liverpool University neuroleptic side effect rating scale(LUNSERS)등을 이용하였다. 결과: 총 103명의 정신분열병 환자를 대상으로 하였다. 사용한 올란자핀의 용량, 벤조디아제핀의 병용률, 탈락률과 탈락 사유, 자발적인 이상반응 보고, 생명징후, 실험실 검사 그리고 대부분의 부작용 척도 상에서 임상적으로 의미 있는 차이를 두 교체 방법간에 발견하지 못하였다. 다만 AIMS의 감소는 ’직접 교체 방법’군에서 보다 적었고, 항콜린제의 병용률은 ’시작-감량 교체 방법’군에서 보다 많았다. 기저 상태에서 전체 피험자의 SAS와 BARS 점수는 각각 3.5점과 1.8점이었으며 70% 이상의 피험자가 고프로락틴 혈증을 보였다. 올란자핀으로 교체한 후, SAS, BARS, AIMS 점수의 유의한 감소가 있었으며 고프로락틴 혈증을 보인 피험자 분율도 약 30%이하로 감소하였다. 그러나 교체 방법과 상관없이 올란자핀 교체 후 유의한 체중 증가가 있었다. 결론: 이 연구를 통해 교체 방법에 관계없이 비교적 안전하고 용이하게 올란자핀으로 교체 할 수 있음을 알 수 있었다. 그리고 기존 항정신병약물을 올란자핀으로 교체함으로써 일부 부작용들을 줄일 수 있음을 간접적으로 관찰할 수 있었다. 하지만 이 연구는 여러 제한점과 문제점을 지니고 있기 때문에 보다 체계적인 연구를 통해 검정이 필요하리라 생각된다. Objectives: This multicenter clinical trial involving 13 hospital sites compared the safely of switching to olanzapine between ’direct switching method’ and ’start-tapering switching method’. Method: This study included both inpatients and outpatients who fulfilled the criteria for schizophrenia as defined in the ICD-10, and were in need to be appropriate for switching antipsychotics. Subjects were randomly assigned to one of the two switching methods. For ’direct switching method’group, previous antipsychotics were abruptly discontinued and 10㎎ of olanzapine was administered, and previous antipsychotics was gradually tapered for 2 weeks. Olanzapine was used for 6 weeks and the dose was adjusted within the range of 5-20㎎. The safety of switching to olanzapine was measured with vital sings including body weight, adverse events reported spontaneously, laboratory tests, and various scales such as Simpson-Angus Scale(SAS), Barnes Akathisia Rating Scale(BARS). Abnormal Involuntary Movement Scale(AIMS), and Liverpool University Neuroleptic Side Effect Rating Scale(LUNSERS). Results: 103 patients were switched to olanzapine in this study. The comparison between two switching methods did not show any significant difference in the dosage of olanzapine used, the concomitant use of benzodiazepine, the rate and reasons of drop-out, the adverse events, vital signs, laboratory tests, and most scales for measuring side-effects. However, the decrease in AIMS scores was significantly lower in ’direct switching method’ group, and the concomitant use of anticholinergics was comparatively greater in ’start-tapering switching method’ group. At baseline, SAS and BARS scores were 3.5 and 1.8 points respectively, and more than 70% of the subjects showed hyperprolactinemia. After switching to olanzapine, SAS, BARS, and AIMS scores were significantly decreased and the proportion of the patients with hyperprolactinemia was also decreased to less than 30%. However significant weight gain after the treatment of olanzapine was observed regardless of switching method. Conclusion: This study may suggest that switching to olanzapine can be done with relatively high safety regardless of switching methods and olanzapine can significantly decrease some side-effects induced by other antipsychotics.