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      • 經營陣의 能力과 組織成果에 관한 考察

        박명수 조선대학교 2000 국내석사

        RANK : 247647

        The executives of an organization make strategic decision as well as build a network with external interest groups. However, little studies in organization theories and strategic management covers the above two roles of executives. Therefore, in accordance with upper-echelons perspective and social network perspective, this paper is to analyze the relationship between the organizational performance and two factors related to executives, their style and external network with the environment. The paper introduces the history of the research on executives and general theories on them related to the above two factors. The research on executives' leadership, the classification of executives based on their style, and the relationship between the executives' style and the organizational performance is followed. Afterwards, the influence of executives' style on the performance is analyzed. The relationship between the performance and executives' network with the environment is examined after the introduction of general researches on executives' ability to build a network with the environment. In conclusion, it is revealed that the style of executives and their network with the environment contain a deep association with organizational performance. In January, 1997, Hanbo and Kia became insolvent. In December of the same year, the government requested 20 billion dollars, emergent aiding fund, to IMF, International Monetary Fund. The cause was known as the failure of foreign exchange policies, which dropped foreign currency of Korea Bank to 3.5 billion dollars and boost the value of dollar to 1400 won from U won. However, the decreasing trust on Korean economy due to corruption and hesitation in dealing with bankruptcy were the real causes. After economic crisis of 1997, 5 banks went out of business, which has no precedent in Korea. In every industry, companies endeavored to conceive ways In survive and new management. The importance of executives' role and influence on the organization are refocused on. The role of top executives is identified as a significant factor affecting the organizational performance. More studies noticed not only executives' role in an organization but also CEO himself/herself. One of the factors that drove 'The miracle of Han River' was senior officials full of motivation and dedication. Recent studies disclosed good executives contribute a great sum to the development of the business as well as the success of national economy. Executives coordinate and control all process. They set up strategies and make an important decision on the agenda. Additionally, executives build a network connecting the organization with the environment. The network built by executives forms friendly environment which provides supports to all activities of the organization. It is well-known that the organization can survive and thrive by effective management as well as friendly environment including diverse interest groups. In brief, good executives play a key role in effective organization. So in, the studies have focused on only strategic decision making by the executives. However, under the recent dynamic environment, the executives' style and the network based on their style have an immense influence on the development of the organization.

      • 음성인식을 이용한 실시간 주문관리 시스템 설계 및 구현

        박명수 원광대학교 일반대학원 2022 국내석사

        RANK : 247647

        Recently, the importance of sales has been increasingly emphasized in running a business. Going with the trend, the development of automation systems for business activities in companies is being actively studied. SFA, an acronym for 'Sales Force Automation', means an automation system of sales organization in a company as the name suggests. The primary purpose of the system is to collect and accumulate the patterns of individual salesperson’s activities, including movement in the workplace and the progress of customer service process. And then, those data are analysed and managed in order to connect them for actual sales promotion. Up until now, since ERP(Enterprise resource planning) systems developed incorporating SFA and CRM(Customer Relationship Management) as their subunits, ERP became too complex instruction set computer and their sizes grew so big. Therefore, it became too risky for small businesses to adopt and operate ERP systems. On top of that, due to the complexity those ERPs could not even fully implement the original functions of SFA. This thesis proposes a model of a manual order system using speech recognition techniques. To implement the model, first, apart from traditional ERPs, SFA functions are independently considered. Secondly, in order to provide an optimal system for salespersons the characteristics of their working environment are thought out carefully. The proposed system is expected to have a good impact particularly on salespersons who spend most of working hours in their car or who are too busy with customers to type on the PCs. The proposed system reduces the load on existing ERP systems by minimizing modules for finding key words through pseudo-morphological analysis, and designed to be incorporated in any ERP systems. To test the completeness of the proposed system, we tuned the database of commercial speech recognizers and implemented on our system. The success rate of extracting key words from buyers voice orders was 96.9%. And the success rate of placing orders using those extracted key words was 100%. 음성인식을 이용한 실시간 주문관리 시스템 설계 및 구현 朴明洙 최근 들어 비즈니스를 운영하는데 영업의 중요성이 점점 더 강조되고 있어 기업 내 영업 활동의 자동화 시스템 개발이 활발히 연구되고 있다. SFA는 ‘Sales Force Automation’을 줄인 것으로, 명칭 그대로 회사 내 영업조직의 자동화 시스템을 의미한다. 개별 영업직원의 동선과 고객 상담의 진행 상황 등을 수집하고, 이를 정보로서 축적・관리해 실질적인 매출로 이어지도록 돕는 게 주목적이다. 그동안 SFA, CRM(Customer Relationship Management) 등의 기능들까지 ERP(Enterprise resource planning) 시스템에 포함되며 발전해 왔기 때문에 ERP가 매우 복잡해져 규모가 너무 방대해졌다. 그래서, 중소기업에서 ERP를 도입해서 운영하기에는 리스크가 크고, SFA 본연의 기능이 충분히 구현되지 못했다는 아쉬움이 있었다. 본 논문에서는 이동이 빈번한 영업 일선의 사원의 입장에서 최적의 시스템 환경을 제공하기 위해 SFA 본연의 기능을 ERP에서 분리하고 음성인식을 사용한 수발주 시스템을 설계하였다. 우리가 제안한 시스템은 고객의 주문을 처리하기 위해 이용자가 손을 분주히 사용할 여력이 없던지 이동성이 중요할 때는 필수로써 업무시간의 대부분 운전으로 보내는 영업사원들에게 적합하여 좋은 영향을 미칠 것으로 기대된다. 본 논문의 시스템은 의사형태소 분석을 통해 중심어를 찾는 모듈을 최소하고 어떤 ERP 시스템에도 장착할 수 있도록 설계하여 기존 ERP 시스템의 부하를 줄여 준다. 제안된 시스템의 완전성을 확인하기 위해 의약 도소매 분야에 적용하기 위해 상용 음성인식기의 데이터베이스를 튜닝하고 테스트를 진행 한 결과, 구매자의 발성 인식 후 중심어 추출 성공률이 96.9%, 추출된 중심어를 사용하여 ERP와 연동해 주문서 발송의 성공률이 100%임을 확인하였다.

      • 헬리컬 SPR에 의한 이종재료 판재의 접합강도 향상을 위한 연구

        박명수 충북대학교 2019 국내박사

        RANK : 247631

        Riveting is a mechanical joint method that could be used to join dissimilar materials having different melting points. Among the various riveting processes, self-piercing riveting(SPR) is suitable to join aluminum alloy and steel which have been being used for the automobile body. The SPR directly pierces the upper sheet and joins it to the lower sheet without a pre-hole. As emission regulation of vehicles is being reinforced globally, the automobile industry needs to reduce the weight of vehicles to improve fuel efficiency and reduce emissions. Several studies have been conducted in the automobile industry with the aim of body weight reduction. Lightweight materials and AHSS(Advanced High Strength Steel) have beam proved effective in improving both the performance and fuel economy of vehicle. Also using the AHSS is being tried to improve vehicle crash safety performance. In this regards, studies on the joint of dissimilar materials have attracted attention. The joint of aluminium alloy and mild steel sheets are comparatively easy due to small difference of strength. But the joint becomes difficult with the increase in strength of the high strength steel sheet. Helical rivet was designed for joining aluminum alloy sheet to a steel sheet of over 1,000 MPa of tensile strength. Each type of SPR needed different conditions such as rivet, anvil and sheet material etc. There was little research on the anvil and helical SPR miniaturization. Therefore, the following study was conducted. For the anvil, a simple flat shape or dome shape has been used for a helical SPR anvil design, but the flat and dome type anvil have advantages and disadvantages. So a new shape of anvil that can improve the riveting strength is required. To reduce the weight of vehicles, it is necessary to miniaturize the helical rivet size that can join soundly. In this thesis, the new combined shape anvil and helical SPR miniaturization design have been suggested and simulated by using commercial FEM code DEFORM-3D. The simulated results were compared with experimental ones and conclude as follow; Considering the advantages of each dome shape and flat shape, it is desirable to design the Helical SPR anvil in a combined shape of flat and dome. 1. Considering the elastic spring back between the anvil and the sheet after joint, the anvil should have draft angle and it is recommended to apply 7º. 2. When using flat and dome combined shaped anvil, the shearing separation load of CP1470 and Al6061 sheet is increased by 33% against dome type, while 8% against flat type. Also, the cross tension separation load is improved by 12.5% against dome type, while 20% against flat type. 3. Helical rivet aims to join with CP1470 sheet. So helical rivet should be used higher strength materials than upper sheet. The hardness of rivet should be Hv550. 4. Helical rivet size 6mm, rib thickness 2mm, center diameter 2.5mm is minimum so or more is recommended.

      • 난류 영역에서의 물/에틸렌글리콜 기반 Al₂O₃ 나노 유체의 대류열전달 특성

        박명수 한국항공대학교 일반대학원 2020 국내석사

        RANK : 247631

        본 연구에서는 완전 발달된 난류영역에서 균일하게 가열된 원형 튜브를 통해 흐르는 물/에틸렌글리콜(Water/EG) 기반 Al₂O₃ 나노 유체의 대류열전달 특성에 대한 기존 연구자들의 연구결과를 Comparison criterion을 제시하여 세 가지 그룹으로 분류하였다. 각 그룹에 대한 실험적인 검증을 통해 나노 유체의 대류열전달계수 향상 Mechanisms을 제시하였다. 실험은 완전 발달된 난류영역에서 균일하게 가열된 원형 튜브를 통해 흐르는 물/에틸렌글리콜(Water/EG) 기반 Al₂O₃ 나노 유체로 진행되었으며, 실험에 사용된 물/에틸렌글리콜(Water/EG) 기반 Al₂O₃ 나노 유체는 Dispersing 공정과 Decanting 공정을 거친 Modified Two-step Method로 제작되었다. 또한 나노 유체에 분산된 입자 크기, 분산안정성, 열전도도 및 나노 유체의 점도를 정량적으로 측정하였다. 나노 입자의 Migration effect를 관찰하기 위해 나노 유체의 대류열전달계수를 Thermophoresis에 대한 Brownian diffusivity의 비를 나타내는 N_BT계수에 따라 실험적으로 측정하였다. 실험 결과를 통해 대류열전달계수가 동일한 Reynolds 수 조건에서의 N_BT계수와 동일 Pumping power조건에 따라 변한다는 것을 관찰할 수 있었다. 특히 동일 Pumping power 조건에서 나노 유체의 대류열전달계수의 향상 폭은 N_BT계수에 따라 -7.7% ~ 13.2%로 광범위하게 변한다는 것을 실험적으로 확인하였다. In this paper, three groups were presented by comparing the results of previous studies on the convective heat transfer characteristics of water/ethylene glycol-based alumina nanofluids flowing through uniformly heated round tubes in a fully developed turbulent region. Classified as experimental verification for each group, we propose a mechanisms to improve the convective heat transfer coefficient of nanofluids. Experiments were performed with water/ethylene glycol-based alumina nanofluids flowing through a uniformly heated round tube in a fully developed turbulent region. The fluid is manufactured in a modified two-step method through dispersion and decanting. Moreover, the particle size, dispersion stability, thermal conductivity and viscosity of the nanofluid dispersed in the nanofluid were measured quantitatively. In order to observe the migration effect of the nanoparticles, the convective heat transfer coefficient of the nanofluid was measured experimentally according to the N_BTcoefficient representing the Brown diffusivity ratio to the thermal diffusion. The experimental results show that the convective heat transfer coefficient changes with the same pumping power conditions as the N_BT coefficient under the same Reynolds number conditions. Specially, it was experimentally confirmed that the range of improvement of convective heat transfer coefficient of nanofluid under the same pumping power varies widely from -7.7% to 13.2% according to N_BT coefficient.

      • 보행자 검출 성능 향상을 위한 관심영역 설정 방법

        박명수 경북대학교 대학원 2017 국내석사

        RANK : 247631

        Today, 94% of automobile crashes are caused due to human errors. We believe smart cars mitigate due to such crashes. Therefore, many automobile companies developing smart cars use sensor like LiDAR, radar, camera and etc. LiDAR is a good sensor for obstacle detection. But, It is more expensive than other sensors. So, many smart cars are used in combination with LiDAR and camera. Camera is cheap, but require many computational cost. However, automotive embedded system is still in low performance because of low performance computers, existing algorithms that are not suitable for automotive embedded systems. So, we need more compact algorithm for automotive embedded system. This thesis purposes ROI(Region of Interest) management method. It reduces ROI in the distance. Because ROI in the distance have an unnecessary area. And It is sampled at equal interval. This proposed method reduces processing time without loss of high accuracy.

      • 고체비적 검출기를 이용한 온천수내 α입자 정량 연구

        박명수 崇田大學校 大學院 1982 국내석사

        RANK : 247631

        In this study, on the assumption that emission material of α-particle of Ra, Rn, and Po et which be produced from Uranium distinegration series of radioactive sbustance be contained in thermal water, sample which had used in this experiment were taken in Yu-Seong Dae-Deok Kun Chung Nam. first, we made a solid state track detecter by photographic positive film which is commericaly available and found its detection efficiency. second, we detected alpha particle in thermal water and made quantitative analysis of alpha particle in thermal water. Results show that the intensity of alpha particle in thermal water is 1.4978×10^(-5) μC, which is contained very small quantity.

      • 트레드밀 운동강도와 시간이 쥐의 심장근과 골격근의 HSP72 발현에 미치는 영향

        박명수 단국대학교 대학원 2001 국내박사

        RANK : 247631

        이 연구는 트레드밀 운동시간과 강도가 쥐의 심장근과 골격근의 HSP72의 발현에 어떠한 영향을 미치는가를 살펴보고자 수행되었다. 이 연구대상은 6주령된 수컷 쥐(SD계; 150∼180g) 60마리이었으며, 이를 대상으로 운동강도(0%, 17.4m/min, 15min, 5days/wk, 10%, 21.5m/min, 25min, 5days/wk, 13%, 25.5m/min, 35min, 5days/wk, 16%, 29.2m/min, 45min, 5days/wk, 18%, 30.0m/min, 60min, 5days/wk)별로 1회성 트레드밀 운동(15분, 25분, 35분, 45분, 60분)과 5주간 점진적인 트레드밀 운동시(1주, 2주, 3주, 4주, 5주) 운동적응 단계에 따른 심장근과 골격근(가자미근, 족저근)의 HSP72 발현량을 비교하였다. 그 결과 1회성 트레드밀 운동시 운동시판이 길수록 심장근과 골격근의 HSP72 발현량이 점진적으로 증가하는 경향을 나타내었으며, 심장근과 가자미근의 경우 60분 트레드밀 운동시 HSP72의 발현량이 최대치로 안정시 수준보다 2배∼5배정도까지 증가하였으며, 족저근의 경우에는 45분 트레드밀 운동시 가장 높은 수준의 HSP72 발현량을 나타내었다. 따라서 심장근과 골격근의 HSP72 발현량은 운동 스트레스와 비례하여 증가되었다는 것을 알 수 있었다. 또한 운동강도가 증가함에 따라 심장근의 HSP72 발현량은 3주에 증가된 HSP72 농도를 4, 5주에서 그대로 유지하는 것으로 나타났다. 점진적으로 증가된 운동강도에 대해 가자미근은 안정시(100%)에 비해 각각 110%, 118%, 163%, 184%, 204% 증가된 발현량을 나타내었고, 족저근은 각각 175%, 191%, 394%, 407%, 593%로 증가된 발현량을 나타내었다(p<.05). 운동으로 인한 스트레스는 가자미근, 족저근, 심장근 모두에서 HSP72 발현을 유도하였고, 운동강도에 비례해 증가하는 식으로 나타났으며, 근섬유 형태에 따른 HSP72 발현 정도에도 유의한 차이가 있음을 볼 수 있었다. The purpose of this study was to investigate the influence of intensity and time of treadmill exercise on HSP72 expression of soleus, plantaris and heart muscle in rats during acute and progressive treadmill running. Sprague-Dawley rats were assigned to either a sedentary control group or one of the five treadmill exercise training groups in both acute and progressive exercise groups. Acute trained rats ran on a treadmill at grade o%, 17.4m/min, 15min, grade l0%, 21.5m/min, grade 13%, 25.5m/min, 35min, grade 16%, 29.2m/min, 45min, grade l8%, 30.0m,/min, 60min, progressive exercise animals ran on a treadmill at grade 0%, 17.4m/min, 15min, days/wk, grade 10%, 21.5m/min, 5days/wk, grade 13%, 25.5m/min, 35min, 5days/wk, grade 16%, 29.2m/min, 45min, 5days/wk, grade l8%, 30.0m,/min, 60min, 5days/wk. 1. All time of exercise resulted in an increase in the HSP72 levels in all tissues. Accumulation of HSP72 in plantaris, heart & soleus muscle in the rats following acute exercise was significantly increased in HSP72 level(2~5 fold) in T45(plantaris) and T60(heart & soleus). Therefore, The induced-HSP72 of skeletal and heart muscle was increased in proportion to exercise stress in acute treadmill exercise. 2. Longer exercise durations also resulted in significant increase in HSP72 level. Accumulation of HSP72 in plantaris and soleus muscle in the rats following progressive exercise was significantly increased in HSP72 level such as 110%, 118%, 163%, 184%, 204% compared with arbitrary unit(lOO%) for soleus muscle and 175%, 191%, 394%, 407%, 593% compared with arbitrary unit(100%) for plantaris muscle. But no changes in cardiac HSP72. These results demonstrated that physiological stress was created by exercise intensity and time can induce HSP72 in rat's soleus, plantaris and heart muscle, HSP72 was increased in proportion to exercise level. Also HSP72 induction was muscle-specific. Causing stress by exercise derived from HSP72, soleus, plantaris and heart muscle, and the proportional rate was increased by the rats' exercise intensity. Thus, the result showed that HSP72-stress volume differed from the shape of muscle fibers. According to the result, impulse heating protein was considered by adapting new environment and preparing themselves for protecting cells of fundamental role. Gradual progress of HSP72 indicated that soleus, plantaris and heart muscle was gradually increased and HSP72 skeletal muscle differed from a manifest shape and exercise volume. To conclude, soleus, plantaris and heart muscle were different from actual state although increased HSP72 with appropriate reaction of exercise pattern.

      • 위 선암종에서 Cathepsin B와 D의 발현과 침습 및 전이와의 상관관계

        박명수 조선대학교 대학원 2001 국내박사

        RANK : 247631

        Gastric cancer is the most common malignant tumor and the one of the most common cause of cancer death in Korea. Invasion depth and nodal status are important factors that affect patient survival. Tumor invasion is controlled by several mechanisms. The cathepsin family is associated with tumor cell invasion and metastasis via mediation of the degradation of extracellular matrix components. To investigate the correlation between cathepsin family expression and invasion depth or nodal metastasis, immunohistochemical staining of cathepsins B and D was performed on paraffin-embedded tissue sections of 161 cases of gastric adenocarcinoma. Of these, 39 were confined to the mucosa, 36 invaded the submucosa, 17 invaded the muscle, and 69 invaded the serosa. There were 89 node-negative cases and 72 node-positive cases. The evaluation of cathepsin B and D immunohistochemical staining was based on the percentages of positive neoplastic cells. The average proportion of cells positive for cathepsin B was 4.2, 23.9, 24.2, and 23.9% in the mucosa-confined, submucosal invasion, muscle invasion, and serosal invasion groups, respectively. The respective average proportion of cells positive for cathepsin D was 55.1, 18.5, 18.0, and 21.0%. The rate of positive cells in the node-negative and node-positive groups was 6.7 and 34.0% for cathepsin B, and 53.2 and 56.7% for cathepsin D, respectively. Cathepsin B expression was significantly (p=0.0001) lower in the mucosa-confined group versus the invasion groups. The node-positive group had a greater positive cell proportion than the node-negative group. Cathepsin D expression was higher in the mucosa-confined group than in the invasiive groups, but the difference was not statistically significant. In addition, there was no difference in the positive cell proportion with respect to nodal status. These results suggest that cathepsin B is correlated with early invasion of gastric adenocarcinoma and nodal metastasis. The rate of positive cells gradually increased, and became statistically significant. By contrast, cathepsin D was expressed less often with increasing tumor invasion, and had no clear relationship with nodal metastasis in gastric adenocarcinoma.

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