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Jongbin Park,Jong-Suk Park,Jundae Lee 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
Paprika, the colored sweet bell-typed pepper (Capsicum annuum L.), is one of the mainly exported fresh agricultural products in Korea. The color, functionality and morphological characteristics of paprika are important factors that determine preferences. In this study, two antioxidant activity analyses, ferric reducing antioxidant power (FRAP) assay and 2,2’-Azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assay, American spice trade association (ASTA) assay, and total phenolic content (TPC) assay were performed on 171 individuals of the ‘Hera Red’ F2 segregating population. In addition, fruit weight, fruit width, fruit height, and fruit hardness were measured on 189 individuals of the same population. As a result, all traits showed normal distribution in the F2 population, implying that the traits may be quantitatively controlled. TPC showed the significant positive correlation with ABTS (r = 0.85) and FRAP (r = 0.79). ASTA showed the significant negative correlation with fruit weight (r = ‒0.44) and fruit width (r = ‒0.41), while ASTA had no significant correlation with ABTS and TPC, respectively. Fruit weight had more correlation with fruit width (r = 0.71) than fruit height (r = 0.33). This information suggests that QTL mapping is required to dissect genetic inheritance.
Managing Complications Related to Multiple Supernumerary Teeth
Jongbin Kim 大韓小兒齒科學會 2014 大韓小兒齒科學會誌 Vol.41 No.2
One or two mesiodens are mostly common to the clinician. However, three mesiodens is rarely found and cancause complications such as orthodontic problems or interruptions of the adjacent teeth with more than 1 or 2mesiodens. Many factors cause irregularities in the permanent dentition. Mesiodens, especially in the anterior maxilla,can disturb the eruption of adjacent permanent teeth and cause diastemas, ectopic eruptions, root resorption, orthe formation of dentigerous cysts. The early diagnosis of mesiodens is important for preventing such complications,and the timing of intervention should be based on their location and number. Periodic checkups and improveddiagnostic devices make it easy to find mesiodens and associated complications. In this case, 3 supernumerary teeth in the maxillary anterior region were affecting the eruption of the adjacentpermanent incisors. To minimize complications and preserve the deciduous teeth, the three supernumerary teethwere extracted in 2 steps. Since cone-beam computed tomography was not available, a brace wire was used to measure the depth of themesiodens. 임상가가 주로 접하게 되는 과잉치는 주로 1~2개인 경우가 거의 대부분을 차지한다. 드물게 보고되는 다수 과잉치는1~2개의 과잉치의 경우보다 교정적인 합병증을 유발할 가능성이 높아지며, 인접치아의 손상가능성 또한 증가하게 된다. 상악 전치부에 호발 하는 과잉치는 상악 전치의 치간 이개, 맹출 장애, 전위, 인접 치아의 치근흡수 그리고 함치성 낭종의형성 등 다양한 문제점들을 일으킬 수 있다. 따라서 조기에 발견하고 인접 구조물에 위해를 주지 않는 다면 이른 시기에 외과적 적출술을 시행해 주는 것을 권한다. 최근에는 정기 검진과 방사선적 진단 장비의 발달로 이러한 대응이 원할 해 질 수 있는 여건이 마련되었다. 본 증례는 상악 전치부에 발생한 3개의 과잉치를 가능한 인접치의 손상을 줄이고, 유치의 잔존을 목표로 두 번에 걸쳐 발거를 시행하였다. 개인 치과에서 시술을 하였기에 CBCT (Cone-Beam Computed Tomography) 와 같은 진단 장비의 도움을 얻지 못하는 상황에서 브라스 와이어를 이용한 과잉치의 심도 확인법을 응용하였다.
Residual stress behaviors induced by laser peening along the edge of curved models
Jongbin Im,Ramana V. Grandhi,Younghee Ro 대한기계학회 2012 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.26 No.12
Laser peening (LP) induces high-magnitude compressive residual stresses in a small region of a component. The compressive residual stresses cause plastic deformation that is resistant to fatigue fracture. Fatigue cracks are generally nucleated at critical areas, and LP is applied for those regions so as to delay the crack initiation. Many critical regions are located on the edge of the curved portion of structures because of stress concentration effects. Several investigations that are available for straight components may not give meaningful guidelines for peening curved components. Therefore, in this paper, we investigate residual stress behaviors induced by LP along the edge of curved models. Three curved models that have different curvatures are investigated for peening performance. Two types of peening configurations, which are simultaneous corner shot and sequential corner shots, are considered in order to obtain compressive residual stresses along an edge. LP simulations of multiple shots are performed to identify overlapping effects on the edge portion of a curved model. In addition, the uncertainty calculation of residual stress induced by LP considering laser pulse duration is performed.
Universal Overdrive Technology with Third-Order Approximation: LC Dependency
Jongbin Kim,Youngmin Cho,Achintya Bhowmik,Seung-Woo Lee 대한전자공학회 2010 ICEIC:International Conference on Electronics, Inf Vol.1 No.1
In this work, we examine liquid crystal material dependency of our overdrive (OD) technology with a third-order approximation. For the examination, we used eleven LCD panels that adopt slow TN, fast TN and IPS. This work reports that any third-order approximation optimized at a certain LC panel can be applied to the other LC panels by adjusting only one parameter. Consequently, our OD technology enables PC users to tune their LCD panel’s response characteristics by adjusting one value.
Jongbin Park,Namjung Kim,Wonho Choi,Seonghyun Kim,Hyojung Jin 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.10
A Tenebrio molitor larva that is called mealworm is widely used as feed for raising a pet. Also, it is the insect that would be produced as the edible food for human. For these reasons, many researchers are revealing about physiologic characteristic of Tenebrio molitor to make good use of it. However, morphological characteristic of different larval stage is not specifically indicated and researchers have different opinions about the average number of Tenebrio molitor’s instar until now. This study, therefore, was carried out to examine the physiological and morphological characteristics of Tenebrio molitor larva in different larval stages, and the average number of Tenebrio molitor’s instar. As a result, all of the Tenebrio molitor larvae had 7~8 days during their incubation period and 3~4 days during the 1st instar period. After the 1st instar, there were comparatively large differences in the number of days in each instar. Before emergence, most of the larvae comparatively showed 15th~17th instars, particularly, the largest rate of pupae (28.83%) was observed in the 17th instar. In terms of the body length of each Tenebrio molitor larval stage, the body length was gradually increased by the 17th instar. Beyond the 17th instar, however, the body length was smaller than 17th instar. In the 1st instar, the larva had white color, and the color gradually changed into brown from the 2nd instar. Through this study, we could identify the accurate incubation period, 1st instar period, the average number of instar, body length and the color change in different larval stages. These results would be used as a fundamental data for further study about the physiological and morphological characteristic of each instar period.
Sorted Consecutive Local Binary Pattern for Texture Classification
Jongbin Ryu,Sungeun Hong,Yang, Hyun S. IEEE 2015 IEEE TRANSACTIONS ON IMAGE PROCESSING - Vol.24 No.7
<P>In this paper, we propose a sorted consecutive local binary pattern (scLBP) for texture classification. Conventional methods encode only patterns whose spatial transitions are not more than two, whereas scLBP encodes patterns regardless of their spatial transition. Conventional methods do not encode patterns on account of rotation-invariant encoding; on the other hand, patterns with more than two spatial transitions have discriminative power. The proposed scLBP encodes all patterns with any number of spatial transitions while maintaining their rotation-invariant nature by sorting the consecutive patterns. In addition, we introduce dictionary learning of scLBP based on kd-tree which separates data with a space partitioning strategy. Since the elements of sorted consecutive patterns lie in different space, it can be generated to a discriminative code with kd-tree. Finally, we present a framework in which scLBPs and the kd-tree can be combined and utilized. The results of experimental evaluation on five texture data sets-Outex, CUReT, UIUC, UMD, and KTH-TIPS2-a-indicate that our proposed framework achieves the best classification rate on the CUReT, UMD, and KTH-TIPS2-a data sets compared with conventional methods. The results additionally indicate that only a marginal difference exists between the best classification rate of conventional methods and that of the proposed framework on the UIUC and Outex data sets.</P>