사격선수들의 심리적 기술요인 분석

임봉숙(Bong Suk Lim),김영식(Young Sik Kim) 한국사회체육학회 2009 한국사회체육학회지 Vol.0 No.37

The purpose of this study is to maximize performance of high school and college shooting athletes through analyzing psychological skill factors by gender, events, teams, experience, and level of match and presenting psychological factors influencing deterioration of performance. To accomplish the research purpose, this study used the psychological skill test for archers (PSAS) and conducted t-test and one-way ANOVA by the purpose of analysis. The results of this study are following: First, in psychological skill factors by gender, male athletes showed higher level on mental control/motivation of achievement, arousal control, and confidence than female athletes. On the other hand, female athletes showed higher level on concentrationxiety. Second, in psychological skill factors by shooting events of the athlete, rifle athletes showed higher level on mental control, arousal control, and confidence than pistol athletes. However, pistol athletes had slightly higher level on motivation of achievement than rifle athletes. Third, in psychological skill factors by teams, college athletes showed higher level on mental control, motivation of achievement, arousal control, and confidence than high school athletes. But high school athletes showed higher level on concentrationxiety than college athletes. Fourth, in psychological skill factors by experience, athletes who have over six years experience showed higher level on mental control, motivation of achievement, arousal control, and confidence. However, athletes who have three to six years experience showed higher level on concentrationxiety than over six years experienced athletes. Fifth, psychological skill factors by level of match, superior athletes showed higher level on all the factors; mental control, concentrationxiety, motivation of achievement, arousal control, and confidence.

종합병원 간호사의 근골격계질환 증상요인 및 관리방안

박정근 ( Jung Keun Park ) 한국산업보건학회 2014 한국산업보건학회지 Vol.24 No.3

Objectives: This study was undertaken in order to examine how musculoskeletal disorder(MSD) symptoms were affected by particular factors and then to explore control strategies to prevent MSDs in general hospital nurses. Materials: This, as part of a large study, was conducted using a set of information on literature review, questionnaire survey and focus group interview. It obtained prevalence and factors of MSD symptoms and examined how MSD symptoms were distributed and affected by the factors in nurses working at 15 general hospitals across Korea. The factors were personal factors, work organization, nursing tasks, physical factors and psychosocial factors. Results: A total of 501 nurses were determined as subjects. The highest MSD symptom prevalence was 61% for the shoulder, among body parts, followed by leg/feet(55%), low back(51%), neck(42%), wrist(38%), and elbow(21%). Prevalence for the whole body was 80%. Odds ratios ranged from 0.4 to 22.4 in logistic regression analyses. The symptoms were significantly attributed to factor variables such as body mass index, current health status, daily work time, nursing task, pooled-physical factors, ergonomic factors, work load, interpersonal conflict, and job insecurity. Conclusions: Two or more factor variables were significant, depending on body part, for MSD systems in the general hospital nurses. It was noticeable that physical factors, such as pooled-physical factors, ergonomic factors or work load, were selectively significant for MSD symptoms in all body parts, indicating that such information should be used for prevention of MSDs in the hospital sector.

Risk factors for heart failure in a cohort of patients with newly diagnosed myocardial infarction: a matched, case-control study in Iran

Ali Ahmadi,Koorosh Etemad,Arsalan Khaledifar 한국역학회 2016 Epidemiology and Health Vol.38 No.-

OBJECTIVES: Risk factors for heart failure (HF) have not yet been studied in myocardial infarction (MI) patients in Iran. This study was conducted to determine these risk factors. METHODS: In this nationwide, hospital-based, case-control study, the participants were all new MI patients hospitalized from April 2012 to March 2013 in Iran. The data on 1,691 new cases with HF (enrolled by census sampling) were compared with the data of 6,764 patients without HF as controls. We randomly selected four controls per one case, matched on the date at MI and HF diagnosis, according to incidence density sampling. Using conditional logistic regression models, odds ratios (ORs) with a 95% confidence interval (CI) were calculated to identify potential risk factors. RESULTS: The one-year in-hospital mortality rate was 18.2% in the cases and higher than in the controls (12.1%) (p<0.05). Significant risk factors for HF were: right bundle branch block (RBBB) (OR, 2.86; 95% CI, 1.95 to 4.19), stroke (OR, 2.00; 95% CI, 1.39 to 2.89), and coronary artery bypass grafting (CABG) (OR, 2.03; 95% CI, 1.34 to 3.09). Diabetes, hypertension, percutaneous coronary intervention (PCI), atrial fibrillation, ventricular tachycardia, and age were determined to be the factors significantly associated with HF incidence (p<0.05). The most important factor in women was diabetes (OR, 1.41; 95% CI, 1.05 to 1.88). Age, hypertension, PCI, CABG, and RBBB were the most important factors in men. CONCLUSIONS: Our findings may help to better identify and monitor the predictive risk factors for HF in MI patients. The pattern of risk factors was different in men and women.

Digital Control of an AC/DC Converter using the Power Balance Control Technique with Average Output Voltage Measurement

Pisit Wisutmetheekorn,Viboon Chunkag 전력전자학회 2012 JOURNAL OF POWER ELECTRONICS Vol.12 No.1

This paper presents a method for the digital control of a high power factor AC/DC converter employing the power balance control technique to achieve a fast response of the output voltage control. To avoid the effects of an output voltage ripple in the voltage control loop, the average output voltage is sampled and used as a feedback signal for the output voltage controller. The proposed control technique was verified by simulations using MATLAB/Simulink and its implementation was realized by a dsPIC30F4011 digital signal processor to control a CUK topology AC/DC converter with a 48V output voltage and a 250 W output power. The experimental results agree with the simulation results. The proposed control technique achieves a fast transient response with a lower line current distortion than is achieved when using a conventional proportional-integral controller and the power balance control technique with the conventional sampling method.

Active structural acoustic control using an integrated control system with smart structures

Huaifeng Cui,Rufu Hu,Nan Chen 국제구조공학회 2021 Smart Structures and Systems, An International Jou Vol.27 No.6

An integrated control system with smart structure is proposed for active structural acoustic control (ASAC). It is mainly used to integrate the advantages of centralized and decentralized ASAC. Each smart structure contains a relatively independent controller, which forms a distributed control. The coordination and cooperation between smart structures is mainly realized by sending control factors (secondary generalized modal force) from the upper coordination unit (coordination structure) to each smart structure. The control factor can reflect the weight of each smart structure on vibration noise control, and play a key role in noise control. The control factors are extracted from the blend function in the bottom control units (smart structures) and stored in the coordination structure. This design method ensures the consistency of the internal functions of each smart structure and lays a foundation for decentralized control. In addition, whether the control factor is allocated to the smart structure depends on the real-time changes of the sound field. Through the intelligent allocation of the control factors, the global (centralized) control is realized and the coupling problem between smart structures is solved. Since the control system does not have a centralized controller, it appears as a decentralized control in form; at the same time, the centralized control in algorithm is achieved by extracting and redistributing the control factors. Therefore, the control system integrates the advantages of decentralized and centralized control.

Design of Fuzzy PD+I Controller Based on PID Controller

Oh, Sea-June,Yoo, Heui-Han,Lee, Yun-Hyung,So, Myung-Ok Korean Institute of Navigation and Port Research 2010 한국항해항만학회지 Vol. No.

Since fuzzy controllers are nonlinear, it is more difficult to set the controller gains and to analyse the stability compared to conventional PID controllers. This paper proposes a fuzzy PD+I controller for tracking control which uses a linear fuzzy inference(product-sum-gravity) method based on a conventional linear PID controller. In this scheme the fuzzy PD+I controller works similar to the control performance as the linear PD plus I(PD+I) controller. Thus it is possible to analyse and design an fuzzy PD+I controller for given systems based on a linear fuzzy PD controller. The scaling factors tuning scheme, another topic of fuzzy controller design procedure, is also introduced in order to fine performance of the fuzzy PD+I controller. The scaling factors are adjusted by a real-coded genetic algorithm(RCGA) in off-line. The simulation results show the effectiveness of the proposed fuzzy PD+I controller for tracking control problems by comparing with the conventional PID controllers.

Design of Fuzzy PD+I Controller Based on PID Controller

Sea-June Oh,Heui-Han Yoo,Yun-Hyung Lee,Myung-Ok So 한국항해항만학회 2010 한국항해항만학회지 Vol.34 No.2

Since fuzzy controllers are nonlinear, it is more difficult to set the controller gains and to analyse the stability compared to conventional PID controllers. This paper proposes a fuzzy PD+I controller for tracking control which uses a linear fuzzy inference(product-sum-gravity) method based on a conventional linear PID controller. In this scheme the fuzzy PD+I controller works similar to the control performance as the linear PD plus I(PD+I) controller. Thus it is possible to analyse and design an fuzzy PD+I controller for given systems based on a linear fuzzy PD controller. The scaling factors tuning scheme, another topic of fuzzy controller design procedure, is also introduced in order to fine performance of the fuzzy PD+I controller. The scaling factors are adjusted by a real-coded genetic algorithm(RCGA) in off-line. The simulation results show the effectiveness of the proposed fuzzy PD+I controller for tracking control problems by comparing with the conventional PID controllers.

Design of Fuzzy PD+I Controller Based on PID Controller

오세준,유희한,소명옥,이윤형 한국항해항만학회 2010 한국항해항만학회지 Vol.34 No.2

Since fuzzy controllers are nonlinear, it is more difficult to set the controller gains and to analyse the stability compared to conventional PID controllers. This paper proposes a fuzzy PD+I controller for tracking control which uses a linear fuzzy inference(product-sum-gravity) method based on a conventional linear PID controller. In this scheme the fuzzy PD+I controller works similar to the control performance as the linear PD plus I(PD+I) controller. Thus it is possible to analyse and design an fuzzy PD+I controller for given systems based on a linear fuzzy PD controller. The scaling factors tuning scheme, another topic of fuzzy controller design procedure, is also introduced in order to fine performance of the fuzzy PD+I controller. The scaling factors are adjusted by a real-coded genetic algorithm(RCGA) in off-line. The simulation results show the effectiveness of the proposed fuzzy PD+I controller for tracking control problems by comparing with the conventional PID controllers.

카피라이팅에 있어 통제와 카피산출 유형에 관한 연구

김동규(Dong Kyu Kim) 한국광고홍보학회 2007 한국광고홍보학보 Vol.9 No.2

본 연구는 광고제작 현장에 대한 참여관찰과, 현역 카피라이터 심층인터뷰 자료를 분석하여 카피라이팅 과정에 작용하는 통제요인의 특성을 규명하고자 했다. 또한 직관적-분석적 개념 축과 조직지향적-개인지향적 개념 축으로 구성된 유형분석매트릭스를 활용하여 카피 산출에 있어 어떤차별적 유형(type)이 존재하는가의 가이드라인을 제시하려 하였다. 연구문제는 ① 카피라이팅 과정에서의 핵심 통제요인은 무엇이며 그것은 어떤 방식으로 작동하는가? ② 광고카피 산출은 어떻게 유형화될 수 있는가? 로 설정하였으며, 연구결과는 다음과 같다. 첫째, 카피라이팅 통제와 관련하여 각 연구참여자 경험에 걸쳐 차별적 양상과 동시에 뚜렷한 패턴이 발견된다는 것이다. 이는 내적 차원과 조직 차원에 걸친 2가지 영역의 통제요인으로 구분되었다. 둘째, 수집 자료를 분류한 다음이를 근거이론 패러다임에 재배치한 결과 4가지 카피산출 유형이 도출되었다. 즉 ① 직관적 창조형, ② 전략적 해결형, ③ 분석적 도출형, ④ 소통적 완성형이 그것이다. 본 연구는 광고카피가 산출되는 과정에서 카피라이터가 직접 경험하는 지각·회상·판단·느낌·욕구 등을 내부적(intrinsic) 관점에서 접근한 것이 특징이다. 이를 통해 지금까지 학술적 주목에서 벗어나있던 카피라이팅 통제요인 속성과 카피산출의 유형을 체계적으로 제시함으로써, 향후 카피라이팅 연구에 있어 심층적 논의의 장을 제시한 의미가 있다. The purpose of this research is to investigate the controlling factors and types of copywriting. The following is research questions. Firstly, what are essential controlling factors that influence copywriting process? Seondly, how copywriting process can be embodied to typology? In order to solve research questions, the data that copywriters actually experience were collected through participant observation and in-depth interview. Next, data collected were analyzed using grounded theory. Here are the main results. Firstly, controlling factors that influence copywriting process were classified into internal dimension and organizational dimension. At this point, it was found that organizational control factors implemented by personnel factors influence more immediately and mutually than internal control factors. Secondly, the research extracted individual and common patterns from experience of copywriters based on analysis of the matrix of copywriting type, and standardized them into repetitive relationship among categories. As a result, the following four copywriting patterns were induced, ① intuitive creation type, ② strategic solution type, ③ analytic extraction type and ④ mutual completion type. This research is meaningful in terms of establishing basis for future study on copywriting phenomenon by inducing various controlling factors influencing copywriting and types of copywriting.

Urinary Bladder Cancer Risk Factors: A Lebanese Case-Control Study

Kobeissi, Loulou Hassan,Yassine, Ibrahim Adnan,Jabbour, Michel Elias,Moussa, Mohamad Ahmad,Dhaini, Hassan Rida Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.5

Background: Bladder cancer is the second most incident malignancy among Lebanese men. The purpose of this study was to investigate potential risk factors associated with this observed high incidence. Methods: A case-control study (54 cases and 105 hospital-based controls) was conducted in two major hospitals in Beirut. Cases were randomly selected from patients diagnosed in the period of 2002-2008. Controls were conveniently selected from the same settings. Data were collected using interview questionnaire and blood analysis. Exposure data were collected using a structured face-to-face interview questionnaire. Blood samples were collected to determine N-acetyltransferase1 (NAT1) genotype by PCR-RFLP. Analyses revolved around univariate, bivariate and multivariate logistic regression, along with checks for effect modification. Results: The odds of having bladder cancer among smokers was 1.02 times significantly higher in cases vs. controls. The odds of exposure to occupational diesel or fuel combustion fumes were 4.1 times significantly higher in cases vs controls. The odds of prostate-related morbidity were 5.6 times significantly higher in cases vs controls. Cases and controls showed different clustering patterns of NAT1 alleles. No significant differences between cases and controls were found for consumption of alcohol, coffee, tea, or artificial sweeteners. Conclusions: This is the first case-control study investigating bladder cancer risk factors in the Lebanese context. Results confirmed established risk factors in the literature, particularly smoking and occupational exposure to diesel. The herein observed associations should be used to develop appropriate prevention policies and intervention strategies, in order to control this alarming disease in Lebanon.