Excel 해 찾기 모듈을 이용한 사료배합 프로그램과 산란계의 성장모델시스템에 관한 연구

김선호 ( Seon Ho Kim ),이승환 ( Seoung Hwan Lee ),이상석 ( Sang Suk Lee ) 한국축산학회(구 한국동물자원과학회) 2021 축산기술과 산업 Vol.8 No.1

An assorted feed technology maximized productivity and margin of profit by allowing to the domestic animals making supply and economical food that have balance as nutrition applying domestic animals science of nutrition and food learning. Least cost formula creation that product design that use Feed Mix Program for these purpose can satisfy nutrient requirement was available. Non-linear optimum code Generalized Reduced Gradient (GRG2) that Texas College and Cleveland State University develop as a tool that to find Microsoft Excel is indispensable solving linear programming problem that handle in spreadsheet modelling is used. Divergence and border law that simple method and Frontline Systems that fan shape and proper move problem use the variable border develops are used. Need data for raw material, product basically because tell feed mixing problem on unpack, and name of raw material, raw material unit cost, raw material ingredient by growth step that get into standard of design. Growth Modelling System was studied IPGM (International Pig Growth Modelling Group). Important purpose of this project is so that on-the-spot survey presents available growth model. Is displaying definitely dialogue current connected with alimentation but mean fundamental, and biologic alimentation principle is thing which do simulation. Ultimate purpose of layer industry is producing egg of high quality efficiently. Is influenced to several factors such as production potential energy of layer, environment condition, food intake, food, disturbed family. These leading persons do on summer period so that might can operate specification system that is correct to each farm because influence in productivity and studied growth model technique application of layer.

터어키안 저부 재건술시 실리콘 판의 유용성

김승범,김재민,이형중,백광흠,김충현,오석전,이승환,Kim, Sung Bum,Kim, Jae Min,Yi, Hyeong Joong,Bak, Koang Hum,Kim, Choong Hyun,Oh, Suck Jun,Lee, Seoung Hwan 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.9

Objectives : At the closure of the transsphenoidal approach(TSA), the proper sellar floor reconstruction plays an important role in preventing postoperative complications. The septal cartilage, perpendicular plate of nasal septum, and the sphenoid sinus bone are usually used to repair the sellar floor as a bone splint. The authors evaluate the usefulness of a silicone plate as a substitute for bone splint to close a defect of the sellar floor. Materials and Methods : A silicone plate was used to repair the sellar floor in 7 patients with sellar lesions which included four pituitary adenomas, two Rathke's cleft cysts and one metastatic tumor. Among seven cases, five cases underwent a standard TSAs and two received a extended TSAs. The trajectories of the approach were sublabial in four cases and endonasal routes in three cases. The silicone plate for implantation was cut to a size of slightly larger than that of bone window and inserted with a three-pronged fork, and then adjusted precisely. Results : In six patients, there were no complications which related to sellar floor reconstruction. A postoperative cerebrospinal fluid(CSF) rhinorrhea was observed in one patient with pituitary macroadenoma. Conclusions : From the authors' experience, the advantages of the silicone plate are its simplicity of molding to fit any size of sellar floor defects, and easy detection of previously created bone window at reoperation.

대형경유자동차의 NO₂/NO<SUB>X</SUB> 비율과 NO<SUB>X</SUB> 배출특성에 관한 연구

정택호(Taek Ho Chung),김선문(Sun Moon Kim),문선희(Sun Hee Mun),홍희경(Hee Kyoung Hong),이승환(Seoung Hwan Lee),서석준(Seok Jun Seo),김정화(Joung Hwa Kim),정성운(Sung Woon Jung),김인구(In Gu Kim),이종철(Jong Chul Lee),이종태(Jong Tae 대한환경공학회 2019 대한환경공학회지 Vol.41 No.4

대형경유자동차에서 배출되는 NOx는 국내 NOx 배출량 중 높은 비율을 차지하고 있으며, NO₂는 인체에 유해하며 대기환경을 오염시키는 물질로 알려져 있다. 본 연구에서는 대형경유트럭과 대형경유버스에서 배출되는 NOx를 실시간으로 측정하였으며, 다양한 조건에 따른 NO₂/NOx 비율과 NOX 배출특성을 파악하였다. 실시간으로 NOx의 농도를 측정한 결과 NO와 NO₂의 농도는 높은 출력을 요구하는 가속구간에서 증가하는 것으로 나타났다. 시험모드별 대형트럭의 NOX 배출량은 WHVC>NIER 9>UDDS 순으로 낮은 평균속도에서 높게 배출되었다. 반면, 대형버스의 NOx 배출량은 평균속도가 증가할수록 높게 배출되는 것을 확인하였다. 엔진 상태에 따른 대형트럭과 버스의 NOX 배출량은 엔진 미가열조건에서 23%, 78% 높게 배출되었다. 대형트럭과 대형버스의 NO₂/NOx 비율은 엔진 가열조건에서 각각 0.7~1.0%, 7.7~7.8%로 확인되었다. 본 연구의 결과는 도로변대기측정망의 NO₂ 농도 산정을 위한 기초자료로 활용될 것으로 기대한다. NOx emitted from heavy-duty diesel vehicles has a high percentage of domestic emissions in Korea. It is known that the NO₂ emission was polluted the atmospheric environments and was harmful to humans. Therefore, investigation on NO₂//NOx Ratio and NOx Emission Characteristics of Heavy-Duty Diesel Vehicles were carried out. In this study, NOx emissions from heavy-duty trucks and buses were measured by chassis dynamometer for heavy-duty vehicle in real time. Also, NO₂/NOx ratio and NOx emission characteristics were analyzed by emission analyzer according to various conditions. It is revealed that NO and NO₂ concentrations were increased in the acceleration section from results of NOx concentration in real time. The NOx emissions of heavy-duty trucks in test mode was confirmed a high level in order the average speed, but NOx emissions of heavy-duty buses were increased as the average speed increased. The NO₂/NOx ratio of heavy duty trucks and buses was 0.7~1.0% and 7.7~7.8% at hot start engine condition. The results of this study will contribute to be used as basic data for the estimation of NO₂ concentration in the roadside air monitoring network.

인공와우이식에서 전기자극 등골근반사의 임상적의의

김리석,안영민,이승환,김동환 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.10

이중혈류유발 심폐소생술이 심정지를 유발한 개의 단기 생존율에 미치는 영향

황성오,조준휘,강구현,김성환,문중범,이강현,이승환,윤정한,최경훈,홍은석 대한응급의학회 2000 대한응급의학회지 Vol.11 No.3

Background and Objectives: We previously reported that, compared with standard cardiopulmonary resuscitation(S-CPR), better hemodynamic effects could be achieved by simultaneous sterno-thoracic cardiopulmonary resuscitation(SST-CPR) in which we compressed the sternum and constricted the thorax circumferentially during the systolic period by using a device. This study was designed to assess whether SST-CPR, compared with S-CPR, improve the survival rate of dogs with cardiac arrest. Subjects and methods: Twenty-five mongrel dogs(19∼31㎏) were enrolled in this study. After four minutes of ventricular fibrillation induced by an AC current, animals were randomized to resuscitate with either S-CPR(n=13) or SST-CPR(n=12). Epinephrine(1 ㎎) was injected into the right atrium every three minutes after the beginning of CPR. Defibrillation was attempted after 6 minutes of CPR. Standard advanced cardiac life support was started if defibrillation was not successful. Results: SST-CPR resulted in significantly(p<0.001) higher systolic arterial pressure(91±47 vs 47±24 ㎜ Hg), diastolic pressure(43±24 vs 17±10 ㎜ Hg), coronary perfusion pressure(35±25 vs 13±9㎜ Hg), and end tidal CO2 tension(9±4 vs 3±2 ㎜ Hg). Two of 13 animals(15 %) resuscitated with S-CPR and six of 12 animals(50%) resuscitated with SST-CPR survived until 12 hours after cardiac arrest(p<0.05). Donclusion: SST-CPR, compared with S-CPR, improves the short-term survival rate in canine cardiac arrest.

각화낭성치성종양의 재발과 연관된 p53, Ki-67, PCNA 및 cytokeratin 17, cytokeratin 18의 발현

신상훈,성화식,이승환 부산대학교 병원 암연구소 2008 부산대병원학술지 Vol.- No.24

The keratocystic odontogenic tumor(OKC) represents approximately 11% of odontogenic cysts and is decided by microscopic and histopathologic determinant rather than by clinical apprearance. The OKC is noted for its capacity to recur after treatment. In this study, p53, Ki-67, PCNA and cytokeratin 17, cytokeratin 18 expression of OKC in relation to non-recurrenct lesion and recurrent lesion after cyst enucleation were examinated. The p53, Ki-67, PCNA and cytokeratin 17, cytokeratin 18 antibody staining were used. The obtained results were as follows. In proliferating rate of non-recurrent OKCs and recurrent OKCs using p53, Ki-67 and PCNA staing, there was not significant difference. In cytokeratin 17 staining, strong positive reaction was showed in all layers of recurrent OKCs rather than non-recurrent OKCs. In cytokeratin 18 staining, negative or weakly positive reaction was showed in recurrent OKCs rather than non-recurrent OKCs. In summary, it was suggested that the recurrence of OKCs was not related to proliferating rate of epithelium and the prognosis of the recurrence of OKCs is helped using cytokeratin 17 and cytokeratin 18.