Porcine epidemic diarrhea virus (PEDV) infects all-age pigs and causes enteric diseases. Genetic diversities in isolates been reported from each country, and those diversities highlighted in pathogenicity and vaccine. In this manuscript, we are reporting of new PEDV isolation in Korea, and with genetic characteristics. Our new isolate belongs to G2b and put the name as CNUP6-2018.

Canine parvovirus type-2 (CPV-2) has been reported worldwide as the main agent associated with acute hemorrhagic enteritis, resulting in high morbidity, especially in young dogs. CPV-2 has three genetic variants, 2a, 2b, and 2c. Here, we report three cases of canine parvovirus enteritis associated with CPV-2a (2 samples) and -2c (1 sample) infections that occurred in three young dogs suffering from enteritis. Isolates from dog diarrheic fecal samples were sequenced by polymerase chain reaction (PCR) and identified as two types of CPV-2a and one type of CPV-2c. This work constitutes the first isolation and genetic characterization of CPV-2c in the Republic of Korea.

현재까지 많은 스마트 면진시스템이 제안되었고 연구되어 왔다. 본 연구에서는 스마트 면진시스템의 면진장치와 보조감쇠 장치로서 새로운 형태의 마찰진자시스템(FPS)과 MR 감쇠기를 각각 사용한다. 퍼지로직제어기(FLC)가 고유의 견실성과 비선형 및 불확실성을 쉽게 다룰 수 있는 능력이 있기 때문에 MR 감쇠기의 감쇠력을 조절하는데 FLC를 사용한다. 또한 FLC의 성능을 최적화 하기 위해서는 유전자알고리즘(GA)을 사용한다. GA를 사용함으로써 소속함수의 형상을 조절하는 것뿐만 아니라 적절한 퍼지제어규칙을 결정할 수 있다. 이를 위하여 본 연구에서는 부분개선 유전자알고리즘을 사용하였다. 이 방법은 유전자의 특정부분을 향상시키는데 효율적이다. FPS와 MR 감쇠기의 동적거동을 표현하기 위해서는 뉴로?퍼지 모델을 사용한다. FLC의 최적설계를 위하여 본 연구에서 제안된 방법의 효율성은 여러 가지 역사지진을 사용하여 계산된 동적응답을 기초로 하여 평가한다. 예제해석결과 제안된 방법은 적절한 퍼지규칙을 찾을 수 있고 GA로 최적화된 FLC는 수동제어기 뿐만 아니라 전문가의 지식에 기반한 FLC와 전통적인 준능동제어기보다 더 좋은 성능을 발휘한다.

Ramie (Boehmeria nivea L. Gaudich.) is a hardy perennial herbaceous plant of the Urticaceae family and has been grown as a fiber crop in several countries including Korea for many centuries. Ramie leaves also have been traditionally used as a major ingredient of a type of rice cake called ‘Song-pyun’ in the Southwest area of Korea, especially Yeong-Gwang province. Despite its economic importance, the molecular genetics of ramie have not been studied in detail yet. Genetic resources of ramie were widely collected from domestic local sites by Bioenergy Crop Research Center (RDA) and Yeong-Gwang Agricultural Technology Center. For the systematic and efficient management of the genetic resources, we developed microsatellite molecular markers of ramie. To do this, we generated microsatellite-enriched genomic DNA libraries using magnetic bead hybridization selection method. 216 contigs containing microsatellite repeat motif were generated using nucleotide sequences of 376 clones from the libraries. Primer sets were designed from the flanking sequences of the repeat motif. Finally, we selected 26 microsatellite markers, possibly showing polymorphism among the genetic resources. Results on the genotype analysis of the ramie genetic resources using the microsatellite markers will be presented.