http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A Study on the Vibration Characteristics of Light Truck Chassis Frame
Hyungjun Noh(노형준),Junbok Ko(고준복),Jinmoo Park(박진무) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study, the impact excitation experiment was performed to investigate the dynamic behavior of the frame using the actual chassis frame of 1ton commercial truck. Also the finite element analysis was accomplished using the commercial finite element package program, ABAQUS version 5.8. By comparing the experimental value and the analytical value, the validity of finite element model was verified. Also, the model experiment was carried out by manufacturing reduced size 1/2 of the actual model and unlike the proceeded experiment, the rubber band was used to create boundary condition and accomplished the vibration experiment. Also the change in vibration characteristic was observed which depended upon member's shape of the frame. The result showed that the different vibration characteristic was indicated when the side member and cross member were in shape of channel or box.
멜론 덩굴쪼김병균(Fusarium oxysporum f. sp. melonis) race 2에 대한 멜론 유전자원 저항성 평가
황애진(Aejin Hwang),노형준(Hyungjun Noh),허온숙(Onsook Hur),노나영(Nayoung Ro),이정윤(Jung-Yoon Yi),이재은(Jae-eun Lee),김빛샘(Bichsaem Kim),김지현(Ji Hyeon Kim) 한국육종학회 2021 한국육종학회지 Vol.53 No.4
Fusarium wilt is a serious disease that causes damping-off, serious wilt symptoms, or death in melon. The aim of this study wasto evaluate the resistance of melon germplasm to Fusarium wilt and select promising disease-resistant accessions for further applications. Resistanceto Fusarium wilt was examined in 216 melon germplasms by the root-dipping inoculation method with Fusarium oxysporum f. sp. melonis fungalisolate KACC43206 (race 2). Inoculated seedlings were incubated for four weeks and assessed for disease symptoms using indices ranging fromindex 1 (no symptoms) to 5 (plant wither). A total of 34 accessions showed a disease index < 2.0. Disease indices of 10 accessions were 1.0four weeks after inoculation. The resistant accessions of melon are expected to help in breeding commercial varieties with Fusarium wilt resistance.
고준복(Junbok Ko),노형준(Hyungjun Noh),박진무(Jinmoo Park) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently, it is very important to reduce noise and vibration for improving ride comfort in a passenger car as it is being advanced. Natural frequency and mode shape of a tire for passenger car are very important factor in anticipating ride comfort and reducing noise & vibration. Natural frequency and mode shape are specially required for researching transmission of vibration from a tire to axle. In this study, thus, Modal Test and Finite element analysis are carried out for determining the vibration characteristics of a tire under the fixed axle and inflation pressure 32 psi. The FEM model is verified against simulations and experiments. Also the relationship between vibration characteristics and variable (variation of inflation pressure, depth of groove pattern, width of tread) is analyzed by using Finite element analysis.
β-Carotene, Cucumisin Content and Fruit Morphology of Melon (Cucumis melo L.) Germplasm Collections
김영지(Yeong-Jee Kim),황애진(Ae-Jin Hwang),노재종(Jae-Jong Noh),왕샤오한(Xiaohan Wang),이재은(Jae-Eun Lee),유은애(Eunae Yoo),이수경(Sookyeong Lee),황소정(Sojeong Hwang),김명곤(Myung-Kon Kim),노형준(Hyungjun Noh) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.6
Melon fruits are a year-old plant in the family Cucurbitae and are the most cultivated fruit in tropical countries. Melon flesh is an important source of anti-cancer, antioxidant effects, attracting attention as a functional food. We investigated the morphological properties, β-carotene content, and cucumisin activity of seeds of 58 melon genetic resources. Melon resources have shown various morphological properties. Melons grouped by morphological properties were the five groups. β-carotene content varied between 82.34 ㎎/㎏, 86.75 ㎎/㎏, 25.56 ㎎/㎏, 86.25 ㎎/㎏, and 54.65 ㎎/ ㎏. Between β-carotene, cucumisin activity and other quantitative fruit morphological properties, the color of the pulp and the firmness of the pulp had a significant amount of correlation between the β-carotene content. However, cucumisin activity and β-carotene content had significant negative correlation, and the color of the fruit and shape of the fruit had significant negative correlation with β-carotene content and activity of cucumisin. Our study vindicated that high diversity in melon morphological characters of genetic sources that provide beneficial baseline data for the future and in the activity of β-carotene and cucumisin, and these results could predict indicators of β-carotene content by the length of leaf, the width of fruit, the length of joint, and the length of seed, and collectively the morphological properties of melons could help predict indicators of β-carotene content and help develop functional sarcoma and farmhouse cultivation.
들깻잎의 caffeic acid와 rosmarinic acid 함량과 항산화 활성 비교를 통한 우수 유전자원 선발
김영지(Yeong-Jee Kim),이재은(Jae-Eun Lee),유은애(Eunae Yoo),이수경(Sookyeong Lee),Xiaohan Wang,Awraris Derbie Assefa,노형준(Hyungjun Noh) 한국자원식물학회 2022 한국자원식물학회지 Vol.35 No.1
Perilla is an annual plant in the family Lamiaceae and are widely cultivated in Asian countries. Perilla leaves are important sources of bioactive compounds and are reported to exhibit anti-inflammatory, antibacterial, anti-cancer and antioxidant effects, drawing attention as functional food materials. We examined caffeic acid, rosmarinic acid, total phenol content, and antioxidant activity in the leaves of 18 perilla accessions obtained from the gene bank of the National Agrobiodiversity Center, Jeonju, Korea. The caffeic acid content ranged between 9.86-27.52 ㎎/g with an average content of 17.75 ㎎/g while the level of. rosmarinic acid was in the range between 49.14 and 90.30 ㎎/g with an average content of 61.88 ㎎/g. The total polyphenol content ranged between 138.39 ㎍ GAE/㎎ dried extract (DE) and 378.19 ㎍ GAE/㎎ DE with an average content of 225.93 ㎍ GAE/㎎ DE. Cluster analysis based on the content of caffeic acid, rosmarinic acid. and antioxidant activity showed that the accessions collections were grouped in two distinct classes. The first group contained six genetic resources with high content of rosmarinic acid, and antioxidant activities respectively. The second group contained 12 genetic resources with high content of caffeic acid. These results could help develop new varieties of nutrient dense perilla resources.