• 한국콘텐츠학회논문지
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• 제11권1호
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• pp.340-349
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• 2011

이 연구는 4P(Police-Press-Politics-Public) 모델의 분석을 통해 언론과 경찰의 바람직한 관계 정립을 위한 정책적 제언을 목적으로 한다. Jean-Louis Loubet Del Bayle은 4가지 주체인 경찰, 언론, 대중, 정치의 관계에 관하여 정보의 교류와 흐름, 권력관계, 정당성 관계라는 3가지 측면에서 이들 간의 관계 모델을 제시하고 있다. 모델 분석을 통해 알 수 있는 것은 언론과 경찰은 국민과 정치라는 외부 주체와의 관계에서 정당성(Legitimacy)을 부여받고 그 정당성을 바탕으로 정보를 입수하고 상대방에 대한 통제 권한을 행사한다는 것이다. 이렇듯 각자의 사회적 기능과 외부환경과의 관계는 경찰과 언론의 관계를 민감하고 복잡하게 만드는 근본 이유가 된다. 4P모델의 분석을 통해 알 수 있는 것은 언론과 경찰의 균형적 관계 정립은 두 주체의 사회적 기능을 보장하고 정당성 확보의 공통 경로인 국민들의 이익으로 귀결된다는 것이다. 또한, 경찰은 언론과의 균형적 관계 형성을 통해 사회변화의 적응성을 높여 경찰행정발전의 영속성을 확보할 수 있다는 것이다. 그리고 경찰과 언론의 균형적 관계를 위해서는 두 주체에게 공통적으로 적용되는 실질적인 '보도 가이드라인'이 마련되어야 하고, 경찰로서는 언론에 대한 사회적 기능의 이해와 관계 개선을 위해 전문적인 인력으로 구성된 언론 담당 부서를 설치해야 한다.

• 대한안전경영과학회지
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• 제5권3호
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• pp.81-98
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• 2003

In modern society, there are diverse sorts of VIPs including a king and individuals. Some like a king or president are in need of professional secret services, and others become VIPs by being guarded by a bodyguard company at their own request. The former is called a public guard, and the latter is a private one. In the field of the public guard, the nation should be furnished with a guard system in consideration of political circumstances to protect VIPs. That is, the parliamentary cabinet system and presidential system call for a different guard system, and the guard system's professional features vary to some degree with political situations and cultural climate. If the ultimate goal of guard is to protect the chief of the democratic and open state in a most efficient and safe manner, it's mandatorily necessary to set up a professional and specialized guard organization to provide democratic and efficient secret services. It's desired that the domestic presidential guard division should be staffed with not only expert guards but other personnels dispatched from the military and police. In the police, guard mission is splitted among various guard and security agencies, including the National Police Agency's public security bureau or the Seoul Metropolitan Police Agency's public security division, 101 security unit, mobile police and 22 special guard division. As a chain of command is separated and it's difficult to manage such organizations effectively, the National Police Agency should be exclusively in charge of VIP guard and security. In the area of private guard, the private police system has shared national security task as a middle organization between the private police and private guard. But now its intent has gradually weakened, and its mission should be redefined. In addition, the way people look at private guard should change, and they should be well informed that it could serve to prevent possible crimes, protect them against crimes and get rid of their inconveniences. To make a good impression on people, the guard associations and businesses should put their efforts into reinforcing publicity activities, and the government, academic circles and press should team up with them as well.

• International Journal of Advanced Culture Technology
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• 제8권3호
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• pp.61-72
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• 2020

The fear of crime, discussed in the early 1960s in the United States, is a psychological response, such as anxiety or concern about crime, the potential victim of a crime. These anxiety factors lead to the burden of the individual in securing the psychological stability and indirect costs of the crime against the society. Fear of crime is not a good thing, and it is a part that needs to be adjusted so that it cannot be exaggerated and distorted by the policy together with the crime coping and resolution. This is because fear of crime has as much harm as damage caused by criminal act. Eric Pawson has argued that the popular impression of violent crime is not formed because of media reports, but by official statistics. Therefore, the police should watch and analyze news related to fear of crime to reduce the social cost of fear of crime and prepare a preemptive response policy before the people have 'fear of crime'. In this paper, we propose a deep - based news classification system that helps police cope with crimes related to crimes reported in the media efficiently and quickly and precisely. The goal is to establish a system that can quickly identify changes in security issues that are rapidly increasing by categorizing news related to crime among news articles. To construct the system, crime data was learned so that news could be classified according to the type of crime. Deep learning was applied by using Google tensor flow. In the future, it is necessary to continue research on the importance of keyword according to early detection of issues that are rapidly increasing by crime type and the power of the press, and it is also necessary to constantly supplement crime related corpus.

• Structural Engineering and Mechanics
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• 제85권5호
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• pp.621-633
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• 2023

The major objective of this paper is to study the receding contact problem between two functional graded layers under a flat indenter. The gravity is assumed negligible, and the shear moduli of both layers are assumed to vary exponentially along the thickness direction. In the absence of body forces, the problem is reduced to a system of Fredholm singular integral equations with the contact pressure and contact size as unknowns via Fourier integral transform, which is transformed into an algebraic one by the Gauss-Chebyshev quadratures and polynomials of both the first and second kinds. Then, an iterative speediest descending algorithm is proposed to numerically solve the system of algebraic equations. Both semi-analytical and finite element method, FEM solutions for the presented problem validate each other. To improve the accuracy of the numerical result of FEM, a graded FEM solution is performed to simulate the FGM mechanical characteristics. The results reveal the potential links between the contact stress/size and the indenter size, the thickness, as well as some other material properties of FGM.

• 한국컴퓨터정보학회논문지
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• 제25권4호
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• pp.183-188
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• 2020

본 연구의 목적은 빅데이터를 활용한 한국 특수경비에 관련에 대한 언론보도 분석을 통한 학문적 발전과 특수경비산업의 도약을 위한 발전방안의 제시하는 데 주된 목적을 두고 있다. 연구방법은 빅카인즈 프로그램을 활용한 '특수경비', '특수경비원'에 대한 연관어 분석 및 키워드 트랜드 분석을 실시하였다. 특수경비산업의 시대적 구분에 따라 성장기(양적), 성장기(질적)으로 구별하여 분석한 결과 총기휴대, 국가중요시설, 정규직에 관련된 언론의 보도와 노출이 많았던 것으로 나타났다. 이는 일반경비원과 달리 특수경비원은 국가중요시설에서 총기를 휴대하거나 사용할 수 있도록 법률이 개정됨에 따라 언론보도가 높게 나타났다. 또한 오남용에 대한 부작용을 우려하는 언론의 관심이 많았던 것으로 보여진다. 질적 성장기에는 특수경비원의 열악한 처우 개선 및 저임금, 불안정한 신분제도의 개선을 위한 정규직 전환에 관한 언론보도가 높게 나타났다. 따라서 특수경비업무의 지속적인 발전과 전문성 및 업무효율성을 향상시킬 필요성이 강조된다.

• 한국컴퓨터정보학회논문지
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• 제18권12호
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• pp.103-111
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• 2013

현재 우리나라의 각종 뉴스는 인터넷에서도 가장 중요한 콘텐츠 일뿐 아니라 언론홍보로써의 중요성도 날로 더해가고 있다. 기업의 각종 뉴스는 신문이나 방송매체를 통하여 보도자료로써 일반인에게 제공되고 있다. 이러한 뉴스가 보도자료화 되기 위해서 기업은 뉴스를 제공할 때 기자를 직접 찾아가거나, 우편, 팩스, 퀵 서비스, 이메일 등의 방법을 이용하는데 이러한 방법들은 시간, 인력, 비용 그리고 파일이 손상되는 문제점을 가지고 있다. 또한 기업측에서는 보도자료가 어떤 내용으로 기사화되었는지 확인하는 절차가 번거롭고, 언론사 측에서는 취재하고 싶은 기업에 대해 취재 요청과 기사 내용에 대해서도 수시로 기업측과 연락을 해야 하는 문제점이 있다. 따라서 본 논문에서는 이와 같은 문제점들을 해결하기 위해서 기업측은 언론사측에 보도자료를 배포하고 기사화한 내용을 쉽게 확인할 수 있으며, 언론사측은 기업측에 취재 요청을 간단하게 수행할 수 있는 배포시스템과 언론사나 포털 기사들 속에서 기업의 보도자료를 수집하는 수집로봇을 설계하고 구현하고자 한다.

• Structural Engineering and Mechanics
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• 제86권4호
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• pp.487-501
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• 2023

Nanoparticles have lower size and larger specific surface area, good stability and less toxic and side effects. In recent years, with the development of nanotechnology, its application range has become wider and wider, especially in the field of biomedicine, which has received more and more attention. Bone defect repair materials with high strength, high elasticity and high tissue affinity can be prepared by nanotechnology. The purpose of this paper was to study how to analyze and study the composite materials for sports bone injury based on multifunctional nanomaterials, and described the electrospinning method. In this paper, nano-sized zirconia (ZrO₂) filled micro-sized hydroxyapatite (HAP) composites were prepared according to the mechanical properties of bone substitute materials in the process of human rehabilitation. Through material tensile and compression experiments, the performance parameters of ZrO₂/HAP composites with different mass fraction ratios were analyzed, the influence of filling ZrO₂ particles on the mechanical properties of HAP matrix materials was clarified, and the effect of ZrO₂ mass fraction on the mechanical properties of matrix materials was analyzed. From the analysis of the compressive elastic modulus, when the mass fraction of ZrO₂ was 15%, the compressive elastic modulus of the material was 1222 MPa, and when 45% was 1672 MPa. From the analysis of compression ratio stiffness, when the mass fraction of ZrO₂ was 15%, the compression ratio stiffness was 658.07 MPa·cm³/g, and when it was 45%, the compression ratio stiffness is 943.51MPa·cm³/g. It can be seen that by increasing the mass fraction of ZrO₂, the stiffness of the composite material can be effectively increased, and the ability of the material to resist deformation would be increased. Typically, the more stressed the bone substitute material, the greater the stiffness of the compression ratio. Different mass fractions of ZrO₂/HAP filling materials can be selected to meet the mechanical performance requirements of sports bone injury, and it can also provide a reference for the selection of bone substitute materials for different patients.

• Structural Engineering and Mechanics
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• 제14권1호
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• pp.57-70
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• 2002

This work presents an iterative mesh partitioning approach to improve the efficiency of parallel substructure finite element computations. The proposed approach employs an iterative strategy with a set of empirical rules derived from the results of numerical experiments on a number of different finite element meshes. The proposed approach also utilizes state-of-the-art partitioning techniques in its iterative partitioning kernel, a cost function to estimate the computational cost of each submesh, and a mechanism that adjusts element weights to redistribute elements among submeshes during iterative partitioning to partition a mesh into submeshes (or substructures) with balanced computational workloads. In addition, actual parallel finite element structural analyses on several test examples are presented to demonstrate the effectiveness of the approach proposed herein. The results show that the proposed approach can effectively improve the efficiency of parallel substructure finite element computations.

• 한국컴퓨터정보학회논문지
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• 제25권6호
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• pp.219-224
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• 2020

이 연구의 목적은 뉴스 빅데이터 분석사이트인 '빅카인즈'를 통해 민간경비의 시대적 구분과 업무에 따라 언론에 보도된 자료들을 통하여 민간경비의 인식과 흐름을 분석하여 민간경비산업의 이론적 근거를 제시하는 데 주된 목적을 두고 있다. 연구방법은 다양하게 흩어져있는 비정형 데이터를 분석이 가능하도록 정형화된 데이터로 바꾸고, 민간경비 성장기에 민간경비 업무별 키워드 트렌드와 연관어 분석을 실시하였다. 연구결과에 따른 민간경비 인식은 각종 범죄 및 사건·사고 및 정규직 관련 이슈를 통해서 언론에 많이 노출되었다. 또한 민간경비업무 영역별로 인식하지 못하고 단순 경비원으로 인식하는 경향이 강했으며 민간경비와 경찰의 연관성이 높은 것으로 보아 경찰력을 보조하는 역할로 인식함은 물론이고 치안을 담당하는 공동의 주체로서 인식되고 있다고 볼 수 있다. 따라서 민간경비에 대한 인식을 객관적으로 판단하고 이를 통해 국가의 안전을 책임지고 사회질서를 유지하는 주체로써 민간경비를 인식하는 초석이 되어야 할 것으로 사료된다.

• Structural Engineering and Mechanics
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• 제17권1호
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• pp.113-140
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• 2004

A mixed eight-node hexahedral element formulated via the Hu-Washizu principle as well as the field extrapolation technique is presented. The mixed element with only three translational degrees of freedom at each node can provide extremely accurate and reliable performance for popular benchmark problems such as spacial beams, plates, shells as well as general three-dimensional elasticity problems. Numerical calculations also show that when extremely skewed and coarse meshes and nearly incompressible materials are used, the proposed mixed element can still possess excellent behaviour. The mixed formulation starts with introduction of a parallelepiped domain associated with the given general eight-node hexahedral element. Then, the assumed strain field at the nodal level is constructed via the Hu-Washizu variational principle for that associated parallelepiped domain. Finally, the assumed strain field at the nodal level of the given hexahedral element is established by using the field extrapolation technique, and then by using the trilinear shape functions the assumed strain field of the whole element domain is obtained. All matrices involved in establishing the element stiffness matrix can be evaluated analytically and expressed explicitly; however, a 24 by 24 matrix has to be inverted to construct the displacement extrapolation matrix. The proposed hexahedral element satisfies the patch test as long as the element with a shape of parallelepiped.