Park's Vector Pattern의 왜곡률 분석에 의한 BLDC 모터의 권선 고장진단

이대성(Dae-Seong Lee),김준영(Jun-Yong Kim),양철오(Chul-Oh Yang),송명현(Myung-Hyun Song),박규남(Song, Kyu-Nam Park) 대한전기학회 2013 대한전기학회 학술대회 논문집 Vol.2013 No.7

벼 乾沓直播栽培時 播種期가 乾物生産에 미치는 影響

朴栽成,朴成圭,李尙榮,洪性澤,池在浚,趙東三,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This experiment was carried out to obtain indispensable information to establish comprehensive cultural method of rice in direct seeding on dry paddy at Chungbuk Agricultural Research and Extension Services. Effect of seeding date on dry matter production, yield components and yield were studied. Seeding on May 5 ensured the highest maximum number of tillers, while transplanting on May 20 gave the highest rate of effective tillers. Number of effective tillers was greater in the order of Hwajinbyeo, Hwaseongbyeo, Daekwanbyeo. Lengths of upper three leaves were increased at later seeding, but leaf width was not affected by seeding date. Ratio of leaf blade weight was higher in earlier seeding during 30 days before heading but was higher in later seeding during 30 days after seeding, and was higher in the order of Hwajinbyeo, Hwaseongbyeo, Daekwanbyeo. CGR, RGR and NAR were not significantly different among seeding dates during 30 days before heading, but were lower in later seeding during 30 days after seeding. LAR was not affected by seeding date during 30 days before heading, but was higher at seeding on May 5 in heading date and during 30 days after heading. Dry weight of leaf blade, leaf sheath and culm, ear and total biomass during 30 days before heading and heading were highest in May 5 seeding. Daekwanbyeo and Hwaseongbyeo in May 5 seeding and Hwajinbyeo in April 20 seeding brought the highest yield with greater number of spikelets, higher ripening ratio and greater 1,000 grain weight, and harvest index and grain/straw ratio were Increased at earlier seeding. There were significantly positive correlations between number of panicles per m2 and LAI at 30 days before heading and heading, dry matter weight of leaf blade and total mass at heading. On the other hand, there were significantly negative correlations between seeding date and ripened grain ratio. 1,000 grain weight and yield, and between 1,000 grain weight and leaf length of 2nd, respectively.

벼 무논골뿌림栽培時 播種期 및 立毛數가 生育 및 收量에 미치는 影響

洪性澤,朴栽成,朴成圭,李尙榮,池在浚,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This study was conducted to establish the cultural techniques of the puddled-soil drill seeding of race (Oryza sativa L.), which is one of the efficient labor saving cultural methods, in the central part of Korea. Seoanbyeo was seeded at three times from April 10 to May 20 with the 20 day interval in 1994. The number of seedling stands per m2 at each seeding date were 50, 90, 130 and 170. The tillering characteristics, lodging characters, dry matter production, yield components and yield were investigated. The number of days to the maximum tillering stage was reduced at the later seeding date. It was 70, 55 and 25 days in seedings on April 10, April 30 and May 20, respectively. The critical effective tillering stage was also shortened at the delayed seeding. The higher the number of seedling stands was, the higher number of tillers, the shorter duration to the maximum tillering stage and the earlier critical effective tillering stage were resulted. The number of tillers was higher at the earlier seeding date. The number of tillers was increased in the order of 50, 90, 130 and 170 seedling stands per m2. The ratios of effective tillers were 53, 61 and 63% at seeding on April 10, April 30 and May 20, respectively. The ratios were not significantly different at April 10. But the ratios in seeding on April 30 and May 20 were reduced as the number of seedling stands was increased. The weight of stem base related to lodging was the highest with 2.01g/10 plants in the optimum seeding on April 30, while it was 1.59g/10 plants in the late seeding on May 20. It was also decreased as the number of seedling stands was increased. The dry weights at 30 days before the heading stage were increased at the later seeding, while the dry weight at the heading stage was the highest at seeding on April 30 which is considered as the adequate seeding time. The dry weights at 30 days before the heading stage were increased as the number of seedling stands was increased and they were increased up to 130 seedling stands per m2 at the heading stage. The length of panicle exsertion was shortened at the later seeding. The length of panicle exsertion was increased up to 130 seedling stands. but it was shorter at 170 seedling stands. The heading dates were later at seeding on April 30 and May 20 than at seeding on April 10. They were not remarkedly different among seeding dates at 50 seedling stands, it was earlier at the higher number of seedling stands over 90. The number of spikelets per panicle was decreased at the higher number of seedling stands. The ratio of ripened grains was higher at earlier seeding than at later seeding. It was not significantly different among the number of seedling stands at the same seeding time. Yields at seeding on April 30, April 10 and May 20 were 644, 624 and 551kg/10a, respectively. The seeding on April 30, the optimum seeding time, resulted the highest yield. Rice quality was decreased due to the increase of the green kerneled rice as the seeding date was delayed.

벼 무논골뿌림裁培時 播種期가 生育 및 收量에 미치는 影響

池在浚,朴裁成,朴成圭,李尙榮,洪性澤,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This study was carried out to determine the optimum seeding date for the rice(Oryza sativa L.) cultivation of the puddled-soil drill seeding, which is one of the efficient labor saving cultural methods, at the central part of Korea. Namweonbyeo, Anjungbyeo and Ilpumbyeo were seeded on four dates from April 10 to May 25, 1994 with the 15 day interval in the paddy field. In order to examine the adequate seeding date, the growth characters, yield components and yields were investigated. The coleoptile emerged 1 or 2 days earlier in Namweonbyeo than in Anjungbyeo and Ilpumbyeo, and later seeding resulted earlier coleoptile emergence. The number of seedling stands were higher in the order of Namweonbyeo, Anjungbyeo and Ilpumbyeo, was increased at the later seeding and was 81 to 88 seedlings on April 10 seeding. The plant height, number of leaves, number of tillers and dry weight at 50 days after seeding of all three cultivars were higher at later seeding. Leaf area index(LAI) were higher in the order of Ilpumbyeo, Anjungbyeo and Namweonbyeo. LAIs at the heading stage, at 30 days after heading and at 30 days before heading were higher in that order. The dry matter weight at the 30 days before heading was higher in sheath and stem than that in leaf blade, while, at heading stage, it was higher in the order of sheath and stem, leaf blade and panicle. On the other hand, at 30 days after heading, it was higher in the order of panicle, sheath and stem and leaf blade. The number of panicles per m2 was greater in the order of Ilpumbyeo, Anjungbyeo and Namweonbyeo. The ratio of ripened grain was reduced as the later seeding date. Its ratio was higher in Namweonbyeo than in Anjungbyeo and Ilpumbyeo. Yield of Namweonbyeo was lower than those of Anjungbyeo and Ilpumbyeo. Yield was decreased as the seeding date was delayed. Namweonbyeo showed the highest yield at seeding on May 10, while Anjungbyeo and Ilpumbyeo showed at seeding on April 25. The seeding date was negatively correlated with the ratio of ripened grain. while the number of seedling stands was positively correlated with the number of panicle per m2.

원위 경골 간부 골절에서 최소 침습적 경피적 금속판 고정술과 관혈적 금속판 고정술의 비교

유성호 ( Seong Ho Yoo ),안성준 ( Seong Jun Ahn ),송무호 ( Moo Ho Song ),김부환 ( Bu Hwan Kim ),이민수 ( Min Soo Lee ),박종하 ( Jong Ha Park ) 대한골절학회 2006 대한골절학회지 Vol.19 No.1

목적: 경골 원위부 골절의 치료에 있어 최소 침습적금속판 고정술과 관혈적 고정술에 대한 비교를 통한 효율성에 대한 연구고찰을 하고자 한다. 대상 및 방법: 2001년 6월부터 2004년 6월까지 경골 원위부 골절에 대하여 수술을 시행한 최소 1년 이상의 추시가 가능하였던 30예 중 최소 침습적 금속판 고정술을 시행한 15예를 A군, 관혈적 금속판 고정술을 시행한 15예를 B군으로 나누어 수술시간, 술 후 재활, 술 후 운동범위, 동통에 대하여 McLennan과 Ungersma의 기준을 이용한 임상평가, 술 후 염증반응에 대한 C-반응성 단백 및 술 후 합병증을 후향적으로 비교 분석하였다. 결과: A군과 B군의 수술시간은 각각 63분 (45∼105)/129분 (80∼120), 능동적 관절 운동가능시기는 8.3일 (6∼14)/15.8일 (13∼21), McLennan과 Ungersma의 기준에 의한 임상평가는 두 군 모두에서 대부분 양호 이상의 결과를 보였으나, B군에서는 보통 1예가 있었다. 술 후 3일, 7일째 각각 시행한 CRP는 A군에서는 4.0 mg% (범위: 0.9∼7.2)/0.5 mg% (0.1∼1.5), B군에서는 7.97 mg% (2.8∼14.6)/1.0 mg% (0.3∼1.6)로 A군에서 조직손상이 적고 회복이 빨랐다. 술 후 합병증으로는 A군에서는 표재성 감염 1예와 5도 이상의 족관절 외반변형 1예가 있었고, B군에서는 표재성 감염 1예, 감염성 불유합 1예와 10도 미만의 족관절 배굴장애를 보이는 경우가 2예 있었다. 결론: 경골 원위부 골절의 수술적 치료에서 최소 침습적 금속판 고정술이 관혈적 고정술에 비해 조직의 염증반응과 합병증이 적고 수술시간 및 술 후 재활 등에서 보다 효율적인 술식으로 사료된다. Purpose: To evaluate the efficacy of the surgical treatment through the comparison of MIPPO vs open plate fixation in the treatment of the distal tibia fracture retrospectively. Materials and Methods: 30 patients with distal tibia fracture from Jun. 2001 to Jun. 2004 were divided into two groups depending on the surgical method. Minimum follow up was 12 months. Group A consisted of 15 patients treated with MIPPO, Group B was 15 patients treated with open plate fixation. The clinical outcomes were evaluated retrospectively from operation time, rehabilitation, ROM, interval change of postoperative CRP to assess postoperative inflammatory reaction, postoperative complications and clinical result with the use of McLennan and Ungersma criteria. Results: There were no significant differences in clinical result by McLennan and Ungersma criteria in both groups. The postoperative 3 days and 7 days CRP were 4.0 mg% (0.9∼7.2)/0.5 mg% (0.1∼1.5) in group A and 7.97 mg% (2.8∼14.6)/1.0 mg% (0.3∼1.6) in group B, shows more minimal tissue injury and early recovery in group A. Operation time in group A was shorter than group B. Normal recovery of ROM was quicker in Group A. In complications, group A showed one superficial infection and one angular deformity and group B showed one superficial infection, one infected nonunion and two ankle stiffness. Conclusion: There were no significant differences in clinical result and bony union. MIPPO technique is superior to group B in view of the minimal tissue injury, complications, operation time and postoperative rehabilitation.

Caffeine 과 Glucose 투여가 지구성 운동중 대사 및 호흡기능에 미치는 효과

박해근,전종귀,홍성표,민창기 忠南大學校體育科學硏究所 1986 體育科學硏究誌 Vol.4 No.1

Twelve male students (major in physical education; non-coffee drinkers; 6 endurance athletes; 6 non-athletes) were studied to determine the effects of caffeine, and Glucose feedings on submaximal endurance performance. Each subject performed three submaximal cycling trials at an absolute intensity of 900kpm. The trials were randomized to negate any possible order or training effects. For the caffeine trial, 2.5 mg/kg body weight of caffeine in 250ml of artificially sweetened barley tea was ingested twice one hour and 30.min prior to the ride. In the glucose trial, 0.5g/kg. body weight of glucose in 250m1 of barley tea was ingested twice one hour and 30 min prior to the ride. During the control trial, 250ml of artificially sweetened barley tea was ingested twice one hour and 30 min prior to the ride. obtained data from the three trials were analyzed with one way ANOVA for repeated measures design. Significant differences between means were located using a multivariate comparison. The level of significance was established at p<0. 05. The results were summerized as follows : Ingestion of glucose elevated blood glucose and insulin levels at rest , but no significant differences in blood glucose concentration were found between the three trials . Glucose ingestion resulted in rapid hypoglycemia and inhibition of FFA mobilization during exercise. Caffeine ingestion increased significantly in VE, Vo2 and plasma osmolarity during the exercise. But caffeine ingestion failed to elevate plasma FFA concentration, HR and blood pressure significantly. Glucose or caffeine ingestion did not change in blood lactate, Hb , plasma Na+ concentration, Hit and RQ during exercise. In the above results, It was suggested that ingestion of caffeine prior to the exercise fail to increase in lipid metabolism during exorcise and may have some detrimental effects on endurance performance besides psychological ergogenic effect of caffeine, and that glucose ingestion prior to the exercise elevate blood glucose and insulin level at rest but may have detrimental effect of endurance performance because of rapid hypoglycemia caused by hyperinsulinemia.

화학 용액 증착 공정으로 제조된 후막 Pb(Zr_(0.52), Ti_(0.48))O₃의 e_(31,f) 특성

박준식,양성준,강성군,나경환 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.9

Thick Pb(Zr_(0.52), Ti_(0.48))O₃(briefly, PZT) films are required for the cases of micro actuators and sensors with high driving force, high breakdown voltage and high sensitivity, and so on. In this work, thick PZT films were fabricated by chemical solution deposition process. Total 16 types of samples using thick PZT films with thicknesses, about 1 ㎛ and 2 ㎛, and Pt top electrodes shapes for measuring effective transverse piezoelectric coefficients (e_(31,f)) were prepared using MEMS processes. All samples were characterized by fabricated e_(31,f) measurement system before and after poling process at 125 kV/cm and 150℃ for 10 min. |e_(31,f)| values of samples after poling were higher than samples before poling. Those of 2 ㎛ thick PZT films were also higher than 1 ㎛ thick PZT films. We found that |e_(31,f)| was directly related with {111} to {h00} crystal structures of thick PZT films. And those with narrow electrodes (x₁- x_(0)) as top Pt electrodes were also higher than cases with wide top Pt electrodes in agreement with given equation.

개의 아토피성 피부염에 대한 피내반응 및 면역요법

박성준 충남대학교 수의과대학 동물의과학연구소 2003 動物醫科學硏究誌 Vol.11 No.-

Atopic dermatitis (atopy, allergic inhalant dermatitis, AD) is a chronic, inflammatory skin disease in which the patient becomes sensitized to environmental allergens. Canine AD is one of the most common pruritic skin diseases of dogs associated mainly with the development of IgE antibodies to environmental allergens. Canine AD has been classified as a type I hypersensitivity reaction. The age of onset of clinical signs in atopic dogs vanes from 1 and 3 years of age. The major clinical signs of canine AD is seasonal or nonseasonal prutitus involving the face, feet, anterior elbows, axilla and ventrum. Cutaneous changes may be secondary to self-scratching, chewing or licking. Otitis externa, secondary bacterial or Malassezia infections is common findings. A tentative diagnosis of canine AD can be based on history, clinical signs, and laboratory tests to rule out other diseases (flea allergic dermatitis, scabies. bacterial folliculitis and Malassezia dermatitis). A definitive diagnosis of atopy may be made with major and minor diagnostic criteria. Conventional therapy of canine AD are shampooing and medication of antibiotics, systemic glucocorticoids and antihistamines. In recent, several reports have demonstrated therapeutic benifits of cyclosporine, pentoxifylline and misoprostol. When these therpies are ineffective or adverse effects for glucocorticoid therapy are considered, allergen-specific immunotherapy based on the results of intradermal skin tests (IDST) or serologic IgE tests can be a safe and effective option that provides efficacy in approximately 50∼80% of atopic dogs. It is very important to be realized by owners and clinicians that the goals of these therapies are not in complete cure but in controlling the clinical signs of canine AD.

흡연에 의한 급성 호산구성 폐렴 2예

박종빈,김학렬,주현준,유태양,신성남,신정현,송정섭,황기은,김소영,양세훈,정은택 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.2

최근 흡연을 시작한 젊은 성언에서 급성 호산구성 폐렴의 발생에 대한 증례가 보고되고 있다. 급성 호산구성 폐렴은 대개 발열을 동반하기 때문에 초기에는 감염성 폐렴으로 잘못 진단, 치료되는 경우가 많다. 아직 정확한 병태 생리 및 조직학적 소견은 밝혀져 있지 않지만 병력 청취 및 임상 양상, 방사선 소견의 관찰을 통해 급성 호산구성 폐렴을 의심하고, 진단을 위해 기관지 폐포 세척액 검사를 시행한다면 좀 더 쉽게 진단 내릴 수 있을 것이다. 본 저자들은 최근 처음 시작한 흡연에 의해 발생한 급성 호산구성 폐렴을 진단하고, 스테로이드를 투여하여 성공적으로 치료한 환자 2예를 경험하였기에 이를 문헌 고찰과 함께 보고하는 바이다. Acute eosinophilic pneumonia(AEP) is characterized by acute febrile respiratory illness associated with diffuse pulmonary infiltration and pulmonary eosinophilia. The specific etiology for acute eosinophilic pneumonia is elusive. By some investigators, cigarette smoking is suggested as a causative substance which can cause AEP. In recent, the authors experienced two cases of AEP following cigarette smoking. Both cases had characteristic features including age around 20 years, new onset smoking before occurance of AEP, diffuse infiltration on chest radiography, pulmonary eosinophilia based on bronchoalveolar lavage and acute improvement after steroid therapy. These clinical features are resemble with previous smoking induced AEP case reports. Base on these clinical features, cigarette smoking associated AEP could be diagnosed more easily.

GIS를 위한 홍수유출해석에 관한 연구

박준일,함계운,성오경,장영태,김경훈 경상대학교 생산기술연구소 2003 工學硏究院論文集 Vol.19 No.-

In the rainfall-runoff simulation, it is crucial problem to extract the hydrologic topographical factors that are used as the model input parameters. Those factors are drawn out from DEM(Digit a1 Elevation Model) along with GIS(Geographic Information System) techniques represent a wide range of topographical informations. GIS is employed to estimate the parameters and examine application. Also, the results from different GIS data and analysis methods are examined. In the study, spatial data are calculated using WMS(Watershed Modeling System) v.6.1, which is hydrologic analysis software coupled with GIS, and flood analysis is accomplished by HEC-1 included in WMS, and applied to Dukchon River basin. To calculate the effective rainfall CN values of NRCS are used. Clark, Snyder and NRCS methods are selected to derive unit hydrograph respectively. In addition, the characteristics of runoff responses according to the selection of GIS spatial data for NRCS CN, TIN or Grid used to extract hydrologic topographical informations. and the number of partitioning sub-basin are investigated.