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Examining Antecedents and Consequences of Gambling Passion: The Case of Gambling on Horse Races
이충기,백기준,David C. Hodgins,이태경 대한신경정신의학회 2013 PSYCHIATRY INVESTIGATION Vol.10 No.4
Objective This study investigated the antecedents and consequences of gambling passion using structural equation modeling to examine relationships among gambling motivation, passion, emotion, and behavioral intentions in the horse racing industry. Methods An onsite survey was conducted with 447 patrons at a horseracing park in South Korea. A confirmatory factor analysis showed that the Gambling Passion Scale was valid and reliable, resulting in two sub-scales: obsessive passion (OP) and harmonious passion (HP). Results Study results indicated that extrinsic motivation influenced OP whereas intrinsic motivation significantly affected HP. Furthermore, OP was correlated with negative emotion, whereas HP was related to positive emotion. Gamblers' satisfaction was found to be influenced positively by positive emotion and negatively by negative emotion. Finally, satisfaction appeared to affect gamblers' behavioral intentions. Conclusion Study results echoed the notion of distinct and separate gambling motivations and passions among horse racing gamblers. Furthermore, results identified specific areas to which horse racing operators or policy makers should pay special attention in developing effective marketing strategies to promote responsible gambling.
Mining of Laticifer Specific Promoter in Lettuce
Moonhyuk KWON,Elysabeth K BARNES,Connor HODGINS,Edward YEUNG,Yang QU,Seon-Won KIM,Dae-Kyun RO 한국생물공학회 2021 한국생물공학회 학술대회 Vol.2021 No.10
Lettuce (Lactuca sativa) is widely used as a model plant due to advantages such as early flowering, easy transfection, tissue culture, and regeneration. Lettuce laticifers forming a pipe-like structure along the vasculature, and the cytoplasmic content of laticifers is latex. In lettuce latex, terpenoids (natural rubber and sesquiterpene lactone) is synthesized and accumulated as major metabolites. For the heterologous terpenoids production, the lettuce laticifer is suitable tissue because of the enriched terpenoids precursors. However, the lettuce laticifer-specific promoter has not been characterized yet. Here, we identified the promoter of cis-prenyltransferase isoform 3 (LsCPT3) and CPT-binding protein isoform 2 (LsCBP2), the essential genes in natural rubber biosynthesis. From β-glucuronidase (GUS) staining and histochemical sectioning of GUS-stained stem, we proved that the LsCPT3 and LsCBP2 promoter enabled to drive GUS expressions exclusively in laticifers. The LsCBP2 promoter was about 400 folds stronger than the LsCPT3 promoter in laticifers. The LsCBP2 promoter is useful for the latex cell engineering in lettuce.
유압식 이족 휴머노이드 로봇의 ZMP 기반 게인 스위칭 알고리즘을 이용한 관절 위치 제어
김정엽(Jung-Yup Kim),Jessica K. Hodgins 제어로봇시스템학회 2009 제어·로봇·시스템학회 논문지 Vol.15 No.10
This paper proposes a gain switching algorithm for joint position control of a hydraulic humanoid robot. Accurate position control of the lower body is one of the basic requirements for robust balance and walking control. Joint position control is more difficult for hydraulic robots than it is for electric robots because of an absence of reduction gear and better back-drivability of hydraulic joints. Backdrivability causes external forces and torques to have a large effect on the position of the joints. External ground reaction forces therefore prevent a simple proportional-derivative (PD) controller from realizing accurate and fast joint position control. We propose a state feedback controller for joint position control of the lower body, define three modes of state feedback gains, and switch the gains according to the Zero Moment Point (ZMP) and linear interpolation. Dynamic equations of hydraulic actuators were experimentally derived and applied to a robot simulator. Finally, the performance of the algorithm is evaluated with dynamic simulations.
Development of Radiocarbon Dating Method for Degraded Bone Samples from Korean Archaeological Sites
Kim, K J,Hong, W,Park, J H,Woo, H J,Hodgins, G,Jull, A J T,Lee, Y J,Kim, J Y Cambridge University Press 2011 Radiocarbon Vol.53 No.1
<P>The development of radiocarbon dating for degraded bone samples collected at Korean archaeological sites has been successful through the characterization of raw bone C/N ratios and application of an ultrafiltration method. It was found that the C/N ratios of raw bone samples are inversely proportional to the carbon content and residue amount after gelatinization. We have examined a few dozen Korean archaeological bone samples for this study. Well-preserved bone samples are found to be physically dense. The range of C/N ratios of Korean raw bone samples ranged from 3.4 to 74. We found that the C/N ratios of degraded raw bone samples can be used to determine whether <SUP>14</SUP>C samples are acceptable for normal pretreatment processing and eventual dating. The results of this study support that even if the C/N ratio of a degraded raw bone sample is 11, extraction of collagen for bone dating is feasible by a carefully designed ultrafiltration process. Our preliminary <SUP>14</SUP>C dating results of a depth profile of Gunang-gul Cave, an archaeological site in Danyang, Korea, indicate that this site has been either geologically or anthropologically disturbed in the past, with <SUP>14</SUP>C ages ranging from 28,910 ± 200 to 48,090 ± 1050 yr BP. The C/N ratios of the collagen samples of Gunang-gul were determined to be 3.2-3.6. Our study establishes a new guide for the pretreatment of degraded bone samples such as those collected in Korea for <SUP>14</SUP>C dating.</P>
Evaluating the distinctiveness and attractiveness of human motions on realistic virtual bodies
Hoyet, Ludovic,Ryall, Kenneth,Zibrek, Katja,Park, Hwangpil,Lee, Jehee,Hodgins, Jessica,O'Sullivan, Carol Association for Computing Machinery 2013 ACM transactions on graphics Vol.32 No.6
<P>Recent advances in rendering and data-driven animation have enabled the creation of compelling characters with impressive levels of realism. While data-driven techniques can produce animations that are extremely faithful to the original motion, many challenging problems remain because of the high complexity of human motion. A better understanding of the factors that make human motion recognizable and appealing would be of great value in industries where creating a variety of appealing virtual characters with realistic motion is required. To investigate these issues, we captured thirty actors walking, jogging and dancing, and applied their motions to the same virtual character (one each for the males and females). We then conducted a series of perceptual experiments to explore the distinctiveness and attractiveness of these human motions, and whether characteristic motion features transfer across an individual's different gaits. Average faces are perceived to be less distinctive but more attractive, so we explored whether this was also true for body motion. We found that dancing motions were most easily recognized and that distinctiveness in one gait does not predict how recognizable the same actor is when performing a different motion. As hypothesized, average motions were always amongst the least distinctive and most attractive. Furthermore, as 50% of participants in the experiment were Caucasian European and 50% were Asian Korean, we found that the latter were as good as or better at recognizing the motions of the Caucasian actors than their European counterparts, in particular for dancing males, whom they also rated more highly for attractiveness.</P>
Development of Radiocarbon Dating Methods for Modern Bone Collagenization
Kim, K J,Hong, W,Park, J H,Woo, H J,Hodgins, G,Jull, A J T Cambridge University Press 2010 RADIOCARBON Vol.52 No.4
<P>The relationship between temperature and time required for collagenization using modern bone samples was investigated. Gelatinized samples of bone collagen were filtered to selectively collect different molecular weight fractions. The results of this study suggest that heating to 70 ° for a duration of 12 hr provides the optimal conditions for gelatinization.</P>