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한지훈,전중환,김동주,장홍희,구자민,김영기,이스캇,김은정,이희천,이효종,연성찬,Han, Ji-hoon,Jeon, Jung-hwan,Kim, Dong-joo,Chang, Hong-hee,Koo, Ja-min,Kim, Young-ki,Lee, Scott-s,Kim, Eun-jung,Lee, Hee-chun,Lee, Hyo-jong,Yeon, Seong-chan 대한수의학회 2005 大韓獸醫學會誌 Vol.45 No.2
This study was carried out to find out how space allowance affect the social behavior of Korean native cattle (Bos taurus coreanae) steers. Twelve Korean native cattle (Bos taurus coreanae) steers were used as subjects, each of which was 30-month-old and observation period was from June to July 2003. Five (T1) and seven (T2) steers were allotted to two pens of $5m{\times}10m$ in a building with slate roof and open sides respectively. They were fed at 09:00 h and 16:00 h, twice a day. The behaviors of steers were recorded from 06:00 h to 17:00 h, using two color CCD cameras (Samsung SDC-411, Korea), one B/W CCD cameras (Samsung SBC-340, Korea), one multiplexer (Samsung SDM-081, Korea) and a time lapse VCR (Samsung SRV-30, Korea). The behaviors of each steer were recorded every 2 min using an instantaneous point sampling method. While the mean percentage of time budget in WA of T1 was lower than that of T2 (p<0.05), the mean percentage of time budget in SF of T1 was higher than that of T2 (p<0.05). When it gets hot, steers in T1 rested from 10:00 h to 14:00 h when it gets cool, showing 40~80% of LD rate while steers in T2 rested from 12:00 h, when it very hot to 17:00 h, showing 20~50% of LD rate, which is relatively low. Steers in T1 were fed from 06:00 h to 08:00 h when it was cool and from 16:00 h to 18:00 h, showing 20~45% of EA rate while steers in T2 were fed from 08:00 h to 14:00 h when it was hot, showing 25~50% of EA rate. In conclusion, it turned out that the number of steers affected their social behavior, and T1 was better environment than T2 in terms of welfare.
한지훈,우상하,박유경,최성훈,이윤규,이정희,김재수,이현종,Han, Ji Hoon,Woo, Sang Ha,Park, Yu-kyeong,Choi, Seong-Hun,Lee, Yun-kyu,Lee, Jung Hee,Kim, Jae Soo,Lee, Hyun-Jong The Korean Medicine Society for the Herbal Formula 2021 大韓韓醫學方劑學會誌 Vol.29 No.4
This case study reports the effects of complex Korean medicine treatment, including Nangan-jeon, on Lambert-Eaton myasthenic syndrome (LEMS) accompanied by chronic constipation and abdominal pain as the main symptoms. A 39-year-old woman diagnosed with LEMS with major symptoms, including chronic constipation and acute abdominal pain, received Western treatment. The treatment efficacy was weak and symptoms recurred, so the patient received outpatient treatment and 13 days of hospitalization for active Korean medicine treatment, including Nangan-jeon. During outpatient treatment and hospitalization, defecation frequency and the numeric rating scale (NRS) for abdominal pain and abdominal cold feeling were measured. The NRS for abdominal pain and cold decreased from 8 at admission to 3 and 0, respectively, at discharge. Defecation frequency increased significantly from once or twice a month to once every 2-3 days during hospitalization. This study results that complex Korean medicine treatment, including Nangan-jeon may be useful for treating patients who mainly complain of autonomic neurological symptoms, among patients diagnosed with LEMS. In addition, it is believed that it could be basic data applicable to more LEMS patient treatment cases.
피부에 의한 이득 감쇠를 줄이기 위한 FEA 시뮬레이션 기반의 이식형 마이크로폰 설계 및 구현
한지훈,김민우,김동욱,성기웅,조성목,박일용,조진호,Han, Ji-Hun,Kim, Min-Woo,Kim, Dong-Wook,Seong, Ki-Woong,Cho, Sung-Mok,Park, Il-Yong,Cho, Jin-Ho 대한의용생체공학회 2008 의공학회지 Vol.29 No.1
Nowadays, implantable hearing aids have been developed to solve the problems of conventional hearing aids. In case of fully implantable hearing aids, an implantable microphone is necessary to receive sound signal beneath the skin. Normally, an implantable microphone has poor frequency response characteristics in high frequency bands of acoustic signal due to the high frequency attenuation effect of skin after implantation to human body. In this paper, the implantable microphone is designed to reduce the high frequency attenuation effect of a skin by putting its resonance frequency at the attenuated range through a finite element analysis (FEA) simulation. The designed implantable microphone through the simulated results has been fabricated by manufacturing process using bio-compatible materials. By the several in-vitro experiments with pig skin, it has been verified that the designed implantable microphone has a resonance frequency around the starting part of the attenuated range and reduces the attenuation effect.
신경가동술과 관절가동술이 경추 신경근병증 환자의 기능장애, 통증, 관절가동범위에 미치는 영향
한지훈,송창호,Han, Ji-Hun,Song, Chang-Ho 대한고유수용성신경근촉진법학회 2021 PNF and Movement Vol.19 No.3
Purpose: The study aimed to investigate the effects of neural mobilization with joint mobilization on dysfunction, pain, and range of motion in cervical radiculopathy patients. Methods: Forty-seven cervical radiculopathy patients were recruited for the study. The subjects were randomly allocated to three groups. Group A (n=16) received a neural mobilization with joint mobilization, Group B (n=15) received a neural mobilization (NM), Group C (n=16) received a joint mobilization (JM). All groups had five sets for a day, three days a week, for four weeks. All subjects were evaluated before and after intervention by their neck disability index (NDI), numeric pain rating scale (NPRS), and range of motion (ROM). Results: The results were as follows: First, the NDI was significantly decreased in all groups (p<0.05). Group A had more significantly decreased NDI than Group B and C (p<0.05). Secondly, the NPRS was significantly decreased in all groups (p<0.05). Group A had more significantly decreased cervical NPRS than Group B (p<0.05). Groups A and B were more effective at decreasing upper extremity NPRS than Group C (p<0.05). Thirdly, the ROM was significantly increased in all the groups (p<0.05). Group A had more significantly improved cervical rotation ROM than Group B (p<0.05). Significant short-term effects of the NM with JM on dysfunction, pain, and range of motion in cervical radiculopathy patients were recorded in this study. Conclusion: These findings gave some indications that it may be feasible to include NM with JM in interventions with cervical radiculopathy patients.
한지훈(Han Ji Hoon),박경배(Park Gyong Bae),곽승욱(Kwak Seung Uk),김정일(Kim Jeong II),정근원(Jeong Keun Won),송인근(Song In Keun),이광배(Lee Kwang Bae),김현욱(Kim Hyen Uk) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.1
Uses can share information and use resources effectively by using TCP/IP-based networks. So, a protocol to manage complex networks effectively is needed. For the management of the distributed networks, the SNMP(Simple Network Management Protocol) has been adopted as an international standard in 1989, and the SNMPv2 in which a security function was added was published in 1993. There are two encryption schemes in SNMPv2, the one is a DES using symmetric encryption scheme and the other is a MD5(Message Digest5) hash function for authentication. But the DES has demerits that a key length is a few short and the encryption and the authentication is executed respectively. In order to solve these problems, we use a RSA cryptography in this paper. In this paper, we examine the items related with SNMP. In addition to DES and MD5 proposed in SNMPv3, we enhance security functionality be adopting RSA, a public key algorithm executing the encryption and the authentication simultaneously. The proposed SNMPv3 security module is written in JAVA under Windows NT environment.
이상치 데이터를 고려한 DT-CNN 기반의 전동기 고장 예측
한지훈(Ji-Hoon Han),최동진(Dong-Jin Choi),박상욱(Sang-Uk Park),홍선기(Sun-Ki Hong) 제어로봇시스템학회 2020 제어·로봇·시스템학회 논문지 Vol.26 No.11
One of the major problems with the existing motor failure prediction system is to assume that all motors with the same fault condition have the same or a similar signal. This is a problem that arises because it is impossible to measure all the countless types of motors and data of driving conditions and failures. It is difficult to implement a general-purpose failure prediction system with an existing system having limited data and limited output. Data that have a large difference because they do not exist in the existing system are called outlier data. In previous studies, the problem arising from the outlier data has not been considered. To solve this problem, a system designed by separating the failure diagnosis model and the failure prediction model is proposed. The diagnostic model of the proposed system can detect data that are not inside big data using a decision-tree convolution neural network (DT-CNN). By using the diagnostic model and the predictive model in series, it is possible to analyze data in a non-measured state more efficiently. Additionally, a method for averaging the outputs of the diagnostic and predictive models is proposed. Through this, the deep learning algorithm can obtain in effect of applying the filter. Furthermore, the average values can be used to confirm the long-term signal change trend. The proposed system improves the problems of the existing failure prediction and enables more practical failure prediction.
한지훈(Ji-Hoon Han)윤규호(Kyu-Ho Yoon),정정권(Jeong-Kwon Cheong),배정호(Jung-Ho Bae),이설옥( Hsueh-Yu Li),오영일(Young-Il Oh),신재명(Jae-Myung Shin),백지선(Jee-Seon Baik),박관수( Kwan-Soo Park) 대한구강악안면외과학회 2011 대한구강악안면외과학회지 Vol.37 No.6
Synovial sarcoma (SS) is a malignant soft tissue tumor comprising 5-10% of all soft tissue sarcomas. This tumor normally occurs in the paraarticular regions of the extremities but is rare in head and neck sites. SS is sometimes difficult to diagnose because it can mimic benign lesions both clinically and radiologically. This paper presents a rare case of a SS of the buccal space of a 25-year old man. The histology examination and immunohistochemistry of the mass led to a diagnosis of synovial sarcoma. The patient was treated primarily with a surgical resection, followed by radiotherapy and chemotherapy. The follow up examination 17-months after surgery showed no signs of tumor relapse or metastasis.