유연 구동기를 이용한 스티어링휠의 촉각 진동 시스템 개발

장경진,김현우,마지형,김민기,남종석,경기욱 한국자동차공학회 2023 한국 자동차공학회논문집 Vol.31 No.8

Compared to conventional vibration actuators, such as an electric motor or an inertial mass shaker, a soft actuator with electro-hydraulic characteristics may produce delicate vibration. However, this actuator can cause some problems, including high driving voltage, low excitation force, and a short life cycle, to vehicles. This paper proposes a new type of soft actuator that uses a polymer gel film to address these problems, and a control system with a rapid switching speed to generate target vibration. Additionally, a synthesis method of the control signal is suggested to generate vibration linked to sound through the actuator and the control system. The suggested system is applied to a steering wheel to generate haptic vibration in a vehicle. This system has significantly improved the output, driving voltage, and durability, and emits soft vibration.

Tenosynovial Giant Cell Tumor of Diffuse Type Mimicking Bony Metastasis Detected on F-18 FDG PET/CT

장경진,변병현,문한솔,박지현,고재수,김병일,임상무 대한핵의학회 2014 핵의학 분자영상 Vol.48 No.3

Tenosynovial giant cell tumor of diffuse type(TGCT-D) is a locally aggressive neoplasm that arises in thetendon sheath, bursa, or synovium. It typically involves theappendicular skeleton and rarely involves the axial skeleton. Because there are no specific findings of TGCT-D based onimaging studies or clinical symptoms, TGCT-D can be confusedwith other primary or metastatic bone tumors.We reportfindings of TGCT-D involving the T9 vertebra incidentallydetected on F-18 FDG PET/CT in a patient with papillarythyroid cancer.

라인댄스 참여자의 선택속성과 실패공포가 지속적 참여의도와 스포츠가치관에 미치는 영향

장경진,김명미,임승현 학습자중심교과교육학회 2020 학습자중심교과교육연구 Vol.20 No.16

The purpose of this study is to investigate the impact of selection attribute and feature of failure of line dance participants, among various sports activities, on intent for continuous participation and on sports values to provide basic data for establish policies to expand the pool and promote line dance as a leisure program so that instructors can continuously attract participation from group members. Surveys were conducted on 395 people participating in line dance clubs at S City. SPSS ver. 20.0 was used to conduct descriptive statistics analysis, frequency analysis, correlation analysis, and multiple regression analysis, thus obtaining the following conclusions. First, for correlation of the sub-factors of selection attribute, fear of failure, continuous participation intent, and sports outlook for line dance participants, it was found that each factor excluding the fear of failure factor had mutually positive correlations. Second, of the selection attributes of line dance participants, program had a positive impact on continuous participation intent, accessibility had a positive impact on character among sports values, and program, cost and accessibility had positive impact on the physical, social and entertainment factors among sports values. Meanwhile, it was found that instructors had a negative impact. Third, among the fear of failure for line dance participants, uncertain futures had a positive impact on continuous participation intent, but self-underestimation had a negative impact, while uncertain future had positive impact on physical, social and entertainment elements of sports values, while self-underestimation had negative impact. 본 연구는 다양한 생활스포츠 종목 중 라인댄스 참여자의 선택속성과 실패공포가 지속적 참여의도와 스포츠가치관에 미치는 영향을 규명하기 위해 S특별시에서 라인댄스 동호회 5곳의 참여자 395명 대상으로 SPSS ver. 20.0을 이용해 기술통계분석과 빈도분석, 상관관계분석, 중다회귀분석을 실시한 결과 다음과 같이 최종 결론을 얻었다. 첫째, 요인별 하위요인간 상관관계에 있어 실패공포의 요인을 제외한 각 요인별 상호 정적인 상관관계가 나타났다. 둘째, 라인댄스 참여자의 선택속성 중 프로그램이 지속적 참여의도에 정적인 영향을 나타냈고, 접근성이 스포츠가치관 중 품성에 정적인 영향을 나타냈으며, 프로그램과 비용, 접근성이 스포츠가치관 중 신체적과 사회적, 오락적에 정적인 영향을 주는 반면 지도자는 부적인 영향을 주는 것으로 나타났다. 셋째, 라인댄스 참여자의 실패공포 중 불확실한 미래는 지속적 참여의도에 정적인 영향을 나타내지만 자기평가절하는 부적인 영향을 나타냈고, 불확실한 미래는 스포츠가치관 중 신체적과 사회적, 오락적에도 정적인 영향을 나타내는 반면 자기평가절하는 부적인 영향을 나타냈다.

젖소의 Leptospira균에 대한 혈청학적 조사

장경진,배춘식,전학진,조용성 한국임상수의학회 1997 한국임상수의학회지 Vol.14 No.1

This experiment was performed to investigate the leptospiral antibody in dairy cattle with serological test in three areas of Kangwondo from February to June, 1995. Twelve different living antigen's (S icterohemorrhagiae, Lpomona, L hardjo, L australis, L canicola, L autumnalis, L grippotyphosa, L tarassovi, L pyroenes, L bataviae, L hebdomadis and L ballum) of Leptospira interrogans were used for the serological test in dairy cattle. The blood samples of 130 cattle were examinde by microscopic agglutination test. Among the serum samples of the dairy cattle, 5 heads of the dairy cattle (3.8%) were positive. Among the positive samples of 5 heads, 3 heads of dairy cattle (2.3%) showed the antibody of L canicola, 2 heads of dairy cattle (1.5%) showed the antibody of L icterohaemorrhagiae. Positive rate by age was 0% ($\leq $2year), 4.6% (3~4year) and 6.6% ($\geq $5year).

방사선의 이용과 방어

장경진 대한수의사회 1991 대한수의사회지 Vol.27 No.3

방사선의 이용과 방어

장경진 대한수의사회 1992 대한수의사회지 Vol.28 No.9

젖소의 부제병

장경진 대한수의사회 1992 대한수의사회지 Vol.28 No.5

실험모달데이터를 사용한 구분모드 합성법의 개선

장경진,지태한,박영필 한국소음진동공학회 1996 소음 진동 Vol.6 No.1

This paper presents systematic study of the experimental application of a free-interfaced component mode synthesis method. In the free-interfaced component mode synthesis method, an error the to truncated higher modes and neglected ineria loadings on a component from the connected component is inherent. Also, it is difficult to directly use experimental modal data in a modal synthesis method which links experimental model to finite-element model because of many inconsistencies between experimentally obtained and analytically obtained modal vectors and missing degrees-of-freedom (DOFs) such as rotational DOFs. In order to solve these problems, three methods, the first one based on attaching auxiliary weights to the connection points, the second one utillizing the normalization of experimental modal vector, and the third one generating smoothed and expanded experimental mode shapes, are studied in this paper. Finally, the study is illustrated for a flat-plate structure by using simulated and measured experimental data.

'소에 흔히 발생되는 위(胃)의 질병' (I)

장경진 한국낙농육우협회 1994 낙농·육우 Vol.14 No.5

後軀痲痺犬의 電鍼治療에 關한 硏究

張京鎭,尹和重,鄭仁虎,李東熙 건국대학교 동물자원연구센터 1992 動物資源硏究誌 Vol.17 No.-

This study undertaken in order investigate the effects of electro-acupuncture for the dogs with traumatic paralysis of hindquarters. The kind of dogs with paralysis of hindquarters used in this study were 12 bilaterals, 5 right sides, and 4 left sides, but all dogs were without bone injury on X-ray. Electro-acupuncture was performed with a current of 2-4 Volts and 25Hz at the acupuncture point of Tchuk-Joong(positive), Back-Hoe(negative), and Sam-Eum Kyo(negative) for 25-30 minutes a day. The definition of "effectiveness" was stand up alone, "ineffectiveness" was impossible to stand up alone. 1. The 21 cases appyling electro-acupuncture resulted in 14 effectiveness(67%) and 7 ineffectiveness(33%). 2. It was judged that the combination of acupuncture points to Tchuk-Joong, Back-Hoe, and Sam-Eum Kyo was effective for the dogs with paralysis of hindquarters. 3. It was recognized that the effects of electro-acupuncture was good in the traumatic neurologic disturbance without bone injury.