• Title/Summary/Keyword: Bug

Search Result 315, Processing Time 0.04 seconds

Composition of the Aggregation Pheromone Components of Korean Bean Bug and Attractiveness of Different Blends (한국산 톱다리개미허리노린재 집합페로몬 성분의 조성과 배합비율별 유인력)

  • Huh, Hye-Soon;Yun, Ji-Eun;Takashi, Wada;Mizutani, Nobuo;Park, Chung-Gyoo
    • Korean journal of applied entomology
    • /
    • v.47 no.2
    • /
    • pp.141-147
    • /
    • 2008
  • Male adults of bean bug, Riptortus clavatus Thunberg (Heteroptera: Alydidae), release aggregation pheromone (AP) attracting both sexes of adult and nymphs, which its egg parasite, Ooencyrtus nezarae (Hymenoptera: Encyrtidae) exploits the pheromone to find host. The AP consists of three components; (E)-2-hexenyl (Z)-3-hexenoate (E2HZ3H), (E)-2-hexenyl (E)-2-hexenoate (E2HE2H), and tetradecyl isobutyrate (TI). We analyzed composition of the pheromone components of bean bugs from different geo graphical locations of Korea and Japan. The attractiveness of different blends of AP components to R. clavatus was also tested in the fields in Jinju, Korea and in Kumamoto, Japan. Composition ratios (E2HZ3H: E2HE2H:TI) of the AP of Jinju and Iksan populations were 1:1.4:0.2 and 1:0.8:0.2, and those of Tsukuba and Kumamoto populations were 1:2.8:0.2 and 1:1.5:0.1, respectively. In field tests, traps baited with ratio of 1:1:1 (E2HZ3H:E2HE2H:TI=16.7:16.7:16.7mg/rubber septum) and 1:1:0.5(E2HZ3H:E2HE2H:TI= 20:20:10mg/rubber septum) attracted significantly greater number of adult bugs than that of 1:5:1 (E2HZ3H:E2HE2H:TI=7.1:35.7:7.1mg/rubber septum).

Effect of Ethanol on Concentrations of Blood Glucose and Epinephrine in Rabbits (Ethanol 투여가 토끼의 혈중 포도당 및 Epinephrine 농도에 미치는 영향)

  • Huh Rhin-Sou
    • Journal of the korean veterinary medical association
    • /
    • v.15 no.8
    • /
    • pp.443-446
    • /
    • 1979
  • Blood glucose and epinephrine concentrations of 15=hour fasted rabbits of 15 heads were determined to observe the efect of etthanol on the concentrations of the substances. Among the 15 rabbits 9 heads were treated with 5ml of $20\%$(vols.) eth

  • PDF

The Tourist Resources' Distribution and Characteristic Around Ondal Cave

  • Jeong, Min-Chae
    • Journal of the speleological society of Korea
    • /
    • v.42 no.2
    • /
    • pp.29-32
    • /
    • 1995
  • The geographical location of Ondal cave is situated between Danyang's cave zone and Yang wol's Kossi cave. The cave is situated at 37$^{\circ}$ 03' North latitude and 128$^{\circ}$ 29' of east longitude and is administratively located in Hari, Yongchun Myen, Danyang Gun, Chung Chong Bug Do. In the light of its natural location, It is situated on the southern side of Nam Han river's water system and in the fort mountain which includes Ondal hill-fort and its mountain range's peak, Nam San.(omitted)

  • PDF

Functional Verification of 64bit RISC Microprocessor (64비트 RISC 마이크로프로세서의 기능 검증에 관한 연구)

  • 김연선;서범수
    • Proceedings of the IEEK Conference
    • /
    • 1998.10a
    • /
    • pp.755-758
    • /
    • 1998
  • As the performance of microprocessor improves, the design complexity grows exponentially. Therefor, it is very important to make the bug-free model as early as possible in a design life-cycle. This paper describes the simulation-based functional verification methodology for the RTL level description model. It is performed by multi-stage verification methods using extensive hand-generated self-checking tests supplemented with random tests. This approach is opplied to the functional verification of the GPU processor of Raptor and various bugs are detected.

  • PDF

Application of Creativity Techniques to New Product Development (신제품개발에 있어서 창조성기법의 활용에 관한 연구)

  • 박영택;김성대
    • Journal of Korean Society for Quality Management
    • /
    • v.26 no.4
    • /
    • pp.202-218
    • /
    • 1998
  • It is well-known that leading firms are more innovative than others, with far more sales from new products. This paper suggests that what kinds of creatively techniques can be a, pp.ied to new product development process for the purpose of commercial success. Both divergent and convergent techniques are considered at each stage of new product development process. Some typical creativity techniques such as boundary examination, bug list, manipulative verbs, morphological analysis, SCAMPER, and TRIZ are explained with case examples.

  • PDF

A Study on Efficient Test Method of Embedded System (Embedded System의 효율적 TEST 방법에 대한 연구)

  • Kim, Seong-Gun;Chung, Ki-Hyun
    • Proceedings of the IEEK Conference
    • /
    • 2008.06a
    • /
    • pp.773-774
    • /
    • 2008
  • As an Embedded system get more complicated, the importance of the software test increases. Especially it is mandatory to test the embeded software for a charge degrade of the development company which is happened due to the error, a danger element clearance to the customer, a performance enhance of the system. In this paper, we propose efficient test method which discovers the bug an embedded system using suitable test case selection and automation test.

  • PDF

The Measurement of Mealy Bug Population Using Image Processing Techniques

  • Ruchanurucks, Miti;Areekul, Vutipong
    • Proceedings of the IEEK Conference
    • /
    • 2002.07b
    • /
    • pp.1232-1235
    • /
    • 2002
  • An experiment on the automatic population measurement of brown Mealy Bugs is first reported in this article. Several image processing techniques are employed along with mapping function and neural network. Though brown Mealy Bugs are difficult to detect because of their camouflage, the experimental results showed that approximately 74% of them were correctly detected.

  • PDF

A Study on the Extended BOM for Generating Assembly Sequence (조립 순서 생성 위한 BOM의 확장성에 관한 연구)

  • 김대형;장현수;이병기
    • Proceedings of the Korean Operations and Management Science Society Conference
    • /
    • 2000.04a
    • /
    • pp.175-178
    • /
    • 2000
  • BOM has been widely used to manufacturing, product design and scheduling. There are several bug differences between Manufacturing BOM and Engineering BOM, which cause a lot of problems. A study to integrate both manufacturing BOM and Engineering BOM is researching to solve those problems. This thesis presents a extended Engineering BOM concepts considering assembly sequence model.

  • PDF