초등영어교육의 정체성에 관한 연구

부경순 淸州敎育大學校 2002 論文集 Vol.39 No.-

진딧물 성 페로몬 성분에 대한 칠성풀잠자리붙이의 반응

부경생 서울대학교 농업개발연구소 1999 농업생명과학연구 Vol.3 No.-

Chrysopa cognata (Neuroptera: Chrysopidae) is the most important lacewing predator against aphids in Korea. In our research C. cognata was shown to respond to aphid sex pheromone chemicals,(-)-(1R,4aS,7S,7aR)-nepetalactol and (+)-(4aS,7S,7aR)-nepetalactone, in EAG measurements and olfactory bioassay experiments. And C. cognata were attracted in trapping at a chestnut orchard, an arboretum and a college campus where insecticides were rarely sprayed. C. cognata significantly more responds to nepetalactol than to nepetalactone, which was again significantly more effective than a solvent, hexane. They were caught in traps mainly during nights, especially from 7.30PM to 1.00AM in July and August in Suwon, Korea. But trap color did not influence the trapping efficiency. The number of C. cognata caught increased with the amount of the chemicals, up to 30mg per a lure, the highest amount tested in these series of experiments. Their catch extended throughout the season, from May to October, with more numbers in July and August. For a dispenser for aphid pheromone chemicals, rubber septa were much more effective than glass vials, in terms of longevity and attractivity. Another surprising result was that only males were caught in the traps. Besides this species a few individuals of male Chrysopa Formosa and Chrysopa phyllochroma were also caught in the pheromone traps.

배과수원에서 발생하는 차애모무늬잎말이나방(가칭, Adoxophyes sp.)에서의 성페로몬 합성 조절과 PBAN cDNA의 구조

부경생 서울대학교 농업개발연구소 2000 농업생명과학연구 Vol.4 No.-

The smaller tea tortrix, Adoxophyes sp. (Lepidoptera: Tortricidae) is a serious pest damaging leaves of pears and teas in Korea and other Asian countries. Adoxophyes in Asia including A. sp. have various characters in morphology, host preference, and sex pheromone composition. But the taxonomy, sexual isolation mechanism, and evolution of pheromone polymorphism in Adoxophyes are not clearly established. Though GC analysis, it was revealed that (Z)-9-tetradencenyl acetate (Z9-14Ac) and (Z)-11-tetradencenyl acetate (Z11-14Ac) are sex pheromone components of A. sp. Composition of pheromone components was 40 : 0 between z9-14Ac and Z11-14Ac in pheromone gland extract and female effluvia. Mating behavior and pheromone production in A. sp. Showed diel rhythm. A. sp. Mated and maximally produced the pheromone immediately after lights-on under a photoperiod of 16L/8D. Pheromone production was stimulated by injection of male of female head extracts, or Hez-PBAN. Therefore, it was proposed that pheromone production in A. sp. Is regulated by a neuropeptide, maybe PBAN, produced from the head. A 750 bp-long cDNA encoding PBAN of A. sp. Was fully characterized. PBAN cDNA contains a predicted open reading frame (ORF) of 576 nucleotides encoding and 192-amino acid long polypeptide. This polypeptide is predicted to be cleaved into 5 putative peptides including PBAN by endoproteolytic processing. PBAN of A. sp. Is a 31-aminoacid long neuropeptide and has 35-48% homology with PBANs from other moths. Other four putative peptides encoded in PBAN cDNA of A. sp. Are 24-amino acid, 7-amino acid, 20-amino acid, and 8-amino acid long. Through immunocytochemical studies, neuronal cells producing PBAN-like peptides were identified. Immunoreactive cells were located in the brain, suboesophageal ganglion (SG), and some ganglia in the ventral nerve cord (VNC). Immunoreactiv cells in the SG constitute three clusters and project neuritis to the corpora cardiaca. A couple of neuritis from the SG descended through the VNC and terminated in the terminal abdominal ganglion.

害忠防除의 새로운 方法 模索

夫庚生 濟州大學校 亞熱帶農業硏究所 1984 亞熱帶農業硏究 Vol.1 No.-

We have nearly one million species of insect recorded in this earth. Moreover they pass through three or four different stages of development ; egg, larva, pupa and adult. All these mean that insects have evolved almost all means of physiological and ecological adaptation to their environment. Most of insect species live their own lives and about 15,000 species are directly or indirectly related to human lives, Among the latter group, most are beneficial, and only about 3,000 species are classified as harmful insects. We have tried to control insect pests with several methods, such as cultural, biological, mechanical, physical, legal and chemical method. The last has played the major role, with application of large quantities of pesticides, which result in three important ill effects ; 1. development of insect pests resistance to insecticides, 2. outbreaks of the pests due to destruction of their natural enemies, and 3. their potential health hazard to humans and wildlife. We need a lot of research and investment in developing alternative control methods in order to avoid those unwanted effects. There are various possibilities, but, in this paper, I discussed only two categories, physiological and genetic, which are already registered or have a good chance of future use. It would be much better if we could find some strategies based on physiological principles operating only in insects. Among this are included cuticle biosynthesis inhibitors, juvenile hormones and their analogues, anti-juvenile hormones, pheromones, kairomones, allomones, antimetabolites, and antifeedants. These chemicals are expected not to give so much troubles to man. Genetic methods can be employed to suppress or eradicate pest populations or to introduce genes innocuous to man into natural populations. This can be accomplished by sterile insect release, chromosome translocations, hybrid sterility, cytoplasmic incompatibility, compound chromosomes, meiotic drive, negative heterosis, conditional lethal mutations, etc. However, it must be emphasized that insect pest problems can be overcome only by integrated pest management programs. We have to select and wisely use the best mean(s) of pest control under a given condition.

민들레 추출액 농도에 따른 민들레 코팅쌀밥의 품질에 관한 연구

유경미,이연경,김세희,황인경,이부용,김성수,홍희도,김영찬 한국조리과학회 2005 한국식품조리과학회지 Vol.21 No.1

Washed rice was coated by spraying aqueous dandelion (Taraxacum officinale) extracts at 20, 30, 40 'Brix and dried at room temperature. The coating procedure was conducted 5 mL/min for 10min. Property changes in the dandelion coated rice and un-coated cooked rice were observed during 2 days of storage. Increasing the coating concentration was associated with lower color values (L, a value) and moisture contents. Sensory and texture properties generally decreased in the cooked rice coated with dandelion more than the control (non-coated rice). But, D-20(20 °Brix of the dandelion concentration) resulted in better textural properties and s ensnry scores for hardness and overall acceptability in cooked rice. Compared to the control, the washed rice roated with 20 °Brix for 0 and 2 days showed better quality in sensory activities, a lower gel consistency and better textural activities. It was concluded that the optimum coating ration of rice and added dandelion extract for cooking were 20 °Brix and 5% respectively, in proportion to the total weight of raw rice.

Impedance를 이용한 전도성고분자 센서의 가스감응특성

이경문,유준부,이병수,전희권,이상태,이덕동,허증수 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

화상 카메라을 이용한 이동체 자동 추적 기법

양경부,조경호 제주대학교 공과대학 첨단기술연구소 2006 尖端技術硏究所論文集 Vol.17 No.1

Image processing field that is required the large number of data and a fast processing time is appling and developing to a various filed because of computer's development. But an object tracking is very difficult with a moving camera. In this paper we applied a difference frame method and HSI color model in this automatic tracking system for moving object.

유전자 알고리즘을 이용한 비선형 시스템 동정

정경권,정성부,엄기환 동국대학교 산업기술환경대학원 1998 산업기술논총 Vol.4 No.-

In this paper, we propose a nonlinear system identification method using genetic algorithm. We represent the nonlinear system as a parameter vector and a measurement vector. In order to identify the nonlinear system, we find the parameter vector using genetic algorithm. The parameter vector is regarded as a chromosome of gene. The error between the desired output and estimated output every sampling period is used to calculate the fitness of one gene. The simulation results showed the effectiveness of using the genetic algorithm in the nonlinear system identification.

백모동에 의한 IgE 생성의 증가

강부경,이종섭,신태용,이은희,김형민 원광대학교 생명공학연구소 1996 생명공학연구소보 Vol.4 No.1

We determined for IgE in serum based on the enzyme-linked immunosorbent assay(ELISA) in vivo after intraperitoneal injection of Solanum lyratum extract for 14 days. The experiment showed as well whole spleen cells that Solanum lyratum extract enhanced IgE production in vivo. Solanum lyratum extract significantly facilitated the production of IgE by LPS-stimulated murine spleen cells. Solanum lyratum THUNB. also enhanced IgE production from mouse whole spleen cells. Lypopolysaccharide(LPS) stimulated IgE production was enhanced 1.4-fold to 2.7-fold by the addition of Solanum lyratum extract over a period of 7 days.

심정지환자에서 epinephrine투여시 혈중 catecholamine의 변화

임경수,황성오,이부수,이강현,이진웅,임종천,김영식,김선만,김 현 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

Background : Cardiac arrest is a potent stimulus for the release of endogenous catecholamine and high plasma catecholamine concentration has been reported during cardiopulmonary resuscitation(CPR). Few data were present about the clinical effect of high plasma catecholamine and endogenous catecholamine response to exogenous epinephrine administration during CPR. Purpose : This study was designed to evaluate endogenous catecholamine response to cardiac arrest and exogenously administered epinephrine during CPR. Method : In 21 cardiac arrest victims, blood sample for epinephrine and norepinephrine was drawn before and 1 minute after each epinephrine administration during CPR. 1mg of epinephrine was administered immediately after intravenous access and 3 minute interval during CPR. Plasma catecholamines were quantitated by high-performance liquid chromatography. Result : Baseline plasma epinephrine concentraqtion was higher in patients with cardiac arrest than normal controls (985±1627 vs 194±173 pg/ml, p<0.05). Baseline plasma norepinephrine concentration was also elevated in patients with cardiac arrest than normal controls, although statistically insignificnat(1965±4915 vs 360±250 pg/ml). Plasma epinephrine concentration in cardiac arrest patients was significantly elevated after exogenous administration of epinephrine, but its response was blunted after the third does of epinephrine. Plasma norepinephrine concentration in cardiac arrest patients was also elevated, but its response was observed only after the first epinephrine administration. Plasma epinephrine concentration was persistently higher in patients with return of spontaneous circulation (ROSC) than patients without ROSC. there was no significant difference of plasma norepinephrine concentration whether spontaneous circulation was restored or not. Endogenous epinephrine response to exogenous epinephrine was not observed in patients having prolonged arrest time over 20 minutes. Conclusion : Results of this study suggests that significant amount of catecholamine is released by exogenous epinephrine administration in spite of high plasma catecholamine concentration, and degree of endogenous catecholamine response influences resuscitation outcome.