• 디지털융복합연구
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• 제10권11호
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• pp.165-174
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• 2012

본 연구는 스마트워크 도입의 활성화를 위해 스마트워크의 시간유연성, 공간유연성, 자원유연성, ICT 인프라 속성이 스마트워크 이용의도에 미치는 영향을 분석하였다. 이러한 영향을 지역의 제조업을 대상으로 직군, 기업규모에 따른 스마트워크의 유형 선호도를 중심으로 분석한 결과 스마트워크 도입초기에 나타날 수 있는 ICT인프라의 영향이 가장 높게 나타났으며, 기존의 스마트워크에서 강조되어온 시간과 공간의 유연성은 낮은 반면에 자원의 유연성이 상대적으로 높게 나타났다. 이러한 결과는 스마트워크의 도입 전 대면중심의 수직적 조직문화에서 성과중심의 수평적 조직문화로의 변화와 집단지성과 협력을 통한 조직문화로의 변화를 인식함으로써 제조업의 구성원 모두에게 만족을 줄 수 있는 스마트워킹의 성공가능성을 제시하고 있다.

• 산업노동연구
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• 제23권1호
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• pp.47-83
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• 2017

스웨덴 노동시장은 정규직 정리해고 대신 임시직 중심 비정규직 활용을 통해 노동력 사용의 유연성을 확보한다. 2000년대 후반 법개정으로 임시직 사용이 보다 더 용이하게 되었고 경제위기 발발로 자본의 힘의 우위가 강화되었음에도, 임시직 규모는 급증하지 않고 도리어 축소되었다. 본 연구는 임시직의 사용 실태와 사용방식 변화를 분석하며 법개정 효과와 경제위기 효과의 설명력을 검토하고, 임시직 등 비정규직 사용을 둘러싼 자본의 유연성 확보 전략과 노동의 유연성 규제 전략이 어떤 내용으로 추진되며, 어떻게 서로 각축하고 타협하며 경제위기 이후 비정규직 사용의 새로운 평형점을 형성하게 되었는지를 설명하고자 한다. 임시직 사용 규제를 완화한 법개정에도 불구하고 단체협약의 내용 수정이 수반되지 않음으로써 법개정 효과는 제한되었고, 경제위기를 거치며 사용업체들이 임시직 대신 간접고용 중심으로 인력을 확충하면서 임시직 규모는 도리어 감소하게 되었다. 사용업체들이 간접고용을 더 선호하게 된 것은 사용자로서의 책임을 회피하고 사용기간 제한 규정이 없어 무기한 사용할 수 있다는 장점 때문이었다. 자본은 경제위기를 거치면서 정규직 대 비정규직 비율을 80-20으로 유지하며 간접고용 비정규직을 '항구적 임시직'으로 사용하는 전략을 취하게 된 것이다. 이에 맞서 노동조합은 임시직보다 간접고용을 더 강력하게 규제하는 전략으로 대응함으로써 간접고용이 외적 수량적 유연성을 확보하기 위한 용도로만 사용되게 되었다. 그 결과, 파견노동을 넘어 임시직을 포함한 전체 비정규직의 사용방식에서도 '관리된 유연성'이 작동하게 되었다. 간접고용의 오 남용이 극심한 한국의 경우 스웨덴 노동조합의 전략처럼 간접고용 노동자에게 여타 고용형태들보다 더 확실하게 고용안정을 보장하고 높은 임금을 보장하는 사회적 개입이 절실하다.

• 가족자원경영과 정책
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• 제15권2호
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• pp.63-84
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• 2011

This qualitative case study focused on the workers' flexibility needs. We selected eight full-time workers from one 2009 family friendly certified firm for observation and in-depth interview. The workers are categorized into three groups; male employees with housewives, double income family workers depending on extended family, and double income family workers depending on paid babysitter. The spouse's work status and informal extended familial support to child care were crucial factors to influence their work family life styles and flexibility needs. The flex time is the most desirable everyday needs for the dual working child caring parents depending on the paid help. And the female workers' concerned about the stigma effect of the institutionalized flexibility use of the inferior labors.

• The Journal of Korean Physical Therapy
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• 제14권4호
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• pp.423-440
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• 2002

The purpose of this study is to investigate the conception and developmental process of stretching in sports physical therapy. This study is to find conception of stretching, feature and effect, principles and fundamental rule, consideration of enforcement and developmental process in order to use the basic material which is very helpful in the every field and the scene of sports needing stretching. Flexibility is the ability to move muscles and joints through their full ranges of motion. Flexibility is developed by stretching. About player who insufficiency of flexibility, patient and disabled person who restrict of range of motion, older adult who reduce of flexibility, promote of flexibility for upgrading stability and efficiency of body on the based of scientific principles is completed by stretching. The method of stretching has been developed with passive stretching, CR, PNF stretching, PIC stretching, MET stretching in the order. The effects that we can get through stretching are as follows : 1. Enhance physical fitness. 2. Optimize learning, practice and performance of many types of skilled movement. 3. Increase mental and physical relaxation. 4. Promote development of body awareness. 5. Reduce risk of joint sprain or muscle strain. 6. Reduce risk of back problem. 7 Reduce muscular soreness. 8. Reduce the severity of painful menstruation for female athletes. 9. Reduce muscular tension. 10. Advance recognition of body.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2006년도 정기 학술대회 논문집
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• pp.778-785
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• 2006

In this paper, two possible ways for mode shape expansion are proposed and opened for discussion for future use. The first method minimizes the modal flexibility error between the experimental and analytical mode shapes corresponding to the measured DOFs to find the multiplication matrix which can be treated as the least-squares minimization problem. In the second method, Normalized Modal Difference (NMD) is used to calculate multiplication matrix using the analytical DOFs corresponding to measured DOfs. This matrix is then used to expand the measured mode shape to unmeasured DOFs. A simulated simply supported beam is used to demonstrate the performance of the methods. These methods are then compared with two most promising existing methods namely Kidder dynamic expansion and Modal expansion methods. It is observed that the performance of the modal flexibility method is comparable with existing methods. NMD also have the potential to expand the mode shapes though it is seen more sensitive to the distribution of error between FEM and actual test data.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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• pp.331-334
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• 2004

In clinical use, coronary stents keep coronary arteries open after expansion with a balloon catheter and prevent the expanded artery from collapsing. Coronary stents are positioned in artery by catheter with a balloon along a guide wire to the lesion site. Flexibility is one of important ability for delivery. In this paper, Palmaz-Schatz stent and Tenax complete stent were selected because these are the most representative of tubular stents. Finite element analyses for the stent system were performed using ABAQUS/Standard code. The present study estimated the flexibility of coronary stents due to loading directions. Moreover the present paper suggests a numerical method to test the flexibility of stents. In conclusion this paper shows how the finite element analysis can be effectively organized in the stent development.

• Earthquakes and Structures
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• 제15권5호
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• pp.463-471
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• 2018

The virtual forces of the original local flexibility method are restricted to inducing stress on the local parts of a structure. To circumvent this restriction, we developed a pseudo local flexibility (PLFM) method that can successfully detect damage to hyperstatic beam structures using fewer modes. For this study, we further developed the PLFM so that it could detect damage in plate structures. We also devised the theoretical background for the PLFM with non-local virtual forces for plate structures, and both the lateral and rotary degree of freedom (DOF) measurements were considered separately. This study investigates the effects of the number of modes, the actual location that sustained damage, multiple damage locations, and noise in modal parameters for the damage detection results obtained from damaged numerical plates. The results revealed that the PLFM can be used for damage detection, localization, and quantification for plate structures, regardless of the use of the lateral DOF and/or rotary DOF.

• The Journal of Korean Physical Therapy
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• 제34권1호
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• pp.38-44
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• 2022

Purpose: The purpose of this study was to investigate the effects of complex training on injury, flexibility, and muscle stiffness in high school male football players. Methods: A total of 60 football players were included in the study and were divided into three groups viz. the complex training group (CTG), 11+ training group (11+TG), and traditional training group (TTG). Injuries were recorded based on the prospective investigation method after starting the study, and the flexibility and muscle stiffness of the subjects were evaluated. Results: The research results showed that the injury rate per match was significantly lower in the CTG and 11+TG than the TTG. In the CTG, the flexibility of the hamstrings significantly increased and the stiffness of the rectus femoris (RF), biceps femoris (BF), and tensor fascia latae (TFL) muscles significantly decreased (p<0.05). In the 11+TG, the stiffness of the RF significantly decreased (p<0.05). In the TTG, the flexibility of the hamstrings significantly increased (p<0.05). Hamstring flexibility showed a significantly higher increase in the CTG and TTG compared to the 11+TG (p<0.05). Also, the stiffness of the RF and TFL muscles showed a significantly higher decrease in the CTG compared to the 11+TG and TTG (p<0.05). The stiffness of the BF muscles too showed a more significant decrease in the CTG compared to the TTG (p<0.05). Conclusion: The complex training method of the Fédération International de Football Association (FIFA) 11+ and self-myofascial release (SMFR) as a warm-up program, prevent injuries, enhance flexibility, and lower muscle stiffness of football players in high school. Thus, it is necessary to ensure the widespread use of the complex training program by instructors and players under the supervision of the Korea Football Association (KFA), given its reliability in preventing injuries and improving the performance of football players.

• 지식경영연구
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• 제23권4호
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• pp.159-175
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• 2022

창의성이 조직의 성장과 발전에 중요하다는 점에서, 많은 기업들이 조직원의 창의성을 높이기 위한 방안들을 모색하고 있다. Dual pathway to creativity model 에 관련된 기존 연구에 따르면, 창의성은 두 가지 경로(인지적 유연성 혹은 인지적 지속성)를 통해 향상된다고 알려져 있다. 그러나, 이 두 가지 경로가 어떻게 활성화 되는지 이해하는데 있어서 조직원의 개인적 특질이 고려되어야 함에도 불구하고, 유연성과 지속성 중 어느 경로가 특정 성격에 더 효과적 인지에 대해서는 거의 논의된 바가 없다. 본 논문에서는, 애착 이론에 근거하여, 개인이 가진 애착 유형이 두 가지 인지적 경로에 어떤 영향을 미치는지 살펴보았다. 구체적으로, 안정 애착을 가진 개인이 (인지적 지속성이 아닌) 인지적 유연성 경로를 사용했을 때, 창의성이 향상된다고 예측하였다. 미국 피험자를 대상으로 한 온라인 실험은 본 연구의 가설을 지지하고 있다. 본 연구의 결과는, 조직 내 창의성 향상에 있어서 안정 애착이 (인지적 지속성이 아닌) 인지적 유연성과 더 적합하다는 점을 시사하고 있다.

• Structural Engineering and Mechanics
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• 제71권4호
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• pp.391-405
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• 2019

Compared to the ambient vibration test mainly identifying the structural modal parameters, such as frequency, damping and mode shapes, the impact testing, which benefits from measuring both impacting forces and structural responses, has the merit to identify not only the structural modal parameters but also more detailed structural parameters, in particular flexibility. However, in traditional impact tests, an impacting hammer or artificial excitation device is employed, which restricts the efficiency of tests on various bridge structures. To resolve this problem, we propose a new method whereby a moving vehicle is taken as a continuous exciter and develop a corresponding flexibility identification theory, in which the continuous wheel forces induced by the moving vehicle is considered as structural input and the acceleration response of the bridge as the output, thus a structural flexibility matrix can be identified and then structural deflections of the bridge under arbitrary static loads can be predicted. The proposed method is more convenient, time-saving and cost-effective compared with traditional impact tests. However, because the proposed test produces a spatially continuous force while classical impact forces are spatially discrete, a new flexibility identification theory is required, and a novel structural identification method involving with equivalent load distribution, the enhanced Frequency Response Function (eFRFs) construction and modal scaling factor identification is proposed to make use of the continuous excitation force to identify the basic modal parameters as well as the structural flexibility. Laboratory and numerical examples are given, which validate the effectiveness of the proposed method. Furthermore, parametric analysis including road roughness, vehicle speed, vehicle weight, vehicle's stiffness and damping are conducted and the results obtained demonstrate that the developed method has strong robustness except that the relative error increases with the increase of measurement noise.