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영양표시정착화사업(Ⅱ) : 식품참고량설정에 관한 연구 Study on the Establishement of the Reference Amount in Foods
김대병,장영미,김인복,이혜영,장재희,김보영,이정구,김창민,정해랑 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-
본 연구는 영양표시에서 1회분량 및 영양소함량표시의 기준으로 사용되는 "식픔창고량"에 관한 연구를 수행하므로써 합리적이고 일관성있는 영양표시기준 개선을 위한 기초자료로 활용코자 하였다. 이를 위하여 미국 및 캐나다를 중심으로 제외국의 현황 및 식품참고량 설정방법을 조사 ·연구 하으며 제도도입 및 개선 방안을 강구하였파. 또한, 시판 제품의 영양료시현황 및 음료류 둥의 포장단위 등을 피악하여 식품참고량설정을 위한 기초자료로 활용코자 하였다. 앞으로 국민건강 ·영양조사자료의 체계적인 통계분석, 가공식품의 섭취량조사 등을 통하여 우리나라 국민의 1인 1회 섭취량자료의 축적이 선행되어야 할 것이다. The purpose of this ?roject is to study on the reference amounts customarily consumed per eating occasion to improve the nutrition labelling standards. We Performed to study on the methodology to establish the reference amounts on the basis of the review on the advanced counITy's status. And we investigated the packaged unit ofprocessed foods. Further study is needed to establlsh the customarily consumed amount per eating occasionthrough the statistical analysis of nationwide food consumption data. Our results will be helpful information to improve nutrition labelling system in Korea.
부창진,김호찬,이관우 제주대학교 공과대학 첨단기술연구소 2006 尖端技術硏究所論文集 Vol.17 No.2
The grounding system of the subsurface should ensure the safe and reliable operation of power systems, and guarantee a human being's safety in the situation of grounding fault in the power system. The optimal design of grounding systems for subsurface can ensure the equalization of the potential distribution of the ground surface above the grounding system, and can obviously improve the safety of the grounding system. This paper deals with the 2-dimensional reconstruction of the earth's resistivity distribution based on DC resistivity data. This task represents a nonlinear and ill-posed minimization problem with many degrees of freedom. In this work, techniques for regularization and controlling of this problem are depicted and classified. The system of equations as resulting from the application of the Gauss -Newton minimization can be solved efficiently.
부창진,김호찬,이관우 제주대학교 공과대학 첨단기술연구소 2006 尖端技術硏究所論文集 Vol.17 No.1
The accurate measurement of soil resistivity and grounding system resistance is fundamental to electrical safety. However, geological and meterological factors can have a considerable effect on the accuracy of conventional measurements and the validity of the measurement methods. This paper presents optimization method of dc resistivity data acquisition system using Wenner and Schlumbeger method.
부찬혁,강창익,김호찬 제주대학교 공과대학 첨단기술연구소 2003 尖端技術硏究所論文集 Vol.14 No.2
The control objective in hard disk drives is to move head as fast as possible to target track and position the head over the center of target track in the presence of external disturbances. The external shock or disk clamping error in manufacturing process causes the disk center to deviate from the disk rotation center. The disk shift acts on control system as disturbance and degrades severely the performance of disk drives. In this paper. we present a new controller that compensates for the periodic disturbance very fast. 'The disturbance compensator is arranged in parallel with the state feedback controller. To avoid the interference with the state feedback controller. the compensator creates compensation signal without feedhack of system output until steady state. Finally, in order to demonstrate the superior performance of the proposed compensator. we present some simulation results using a matlab.
부창진,김호찬,강민제 제주대학교 공과대학 첨단기술연구소 2005 尖端技術硏究所論文集 Vol.16 No.1
Electrical resistance tomograpy(ERT) maps resistivity values of the soil subspace and characterizes buried objects. The characterization includes location, size, and resistivity of buried objects. In this paper, we have made numerical experiments to compare the performance of the Wenner, Schlumberger, pole-pole, and dipole-dipole electrode arrays for two-dimensional resistivity measurement in ERT. In general, the SNR(signal to noise ratio) of resistivity measurement is directly to the measurement voltage level. The pole-pole and Wenner arrays can give the highest signal level. Results of numerical experiments in ERT solved by four electrode array types are presented and compared using Gauss-Newton inversion algorithm.
김호찬,부창진,이윤준 제주대학교 공과대학 첨단기술연구소 2002 尖端技術硏究所論文集 Vol.13 No.2
Electrical impedance tomograpy(EIT) determines the resistivity distribution inside an inhomogeneous target by means of voltage and current measurements conducted at the target boundary. In this paper, a simultaneous perturbation stochastic approximation(SPSA) approach is proposed for the solution of the EIT image reconstruction. Results of numerical experiments of EIT solved by the SPSA approach are presented and compared to that obtained by the modified Newton-Raphson(mNR) method.
부창진,김호찬,김문찬,이윤준 제주대학교 공과대학 첨단기술연구소 2004 尖端技術硏究所論文集 Vol.15 No.2
Electrical resistance tomograpy (ERT) maps resistivity values of the soil subsurface and characterizes buried objects. The characterization includes location, size, and resistivity of buried objects. In this paper, simultaneous iterative reconstruction technieque (SIRT) and truncated least squares (TLS) approach are presented for the solution of the ERT image reconstruction. Results of numerical experiments in ERT solved by the SIRT and TLS approach are presented and compared to that obtained by the Gauss-Newton method.
다꾸지법을 이용한 구리와 타이타늄 마찰압접부의 용접변수의 영향에 관한 연구
金成演,延倫模,鄭承富,徐昌濟 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.7
This paper describes a fundamental investigation of the friction welding condition for the pure copper/ pure titanium joining and the effect of friction time, upset pressure on the mechanical and metallurgical properties of the joint. Taguchi method has been adopted for investigating the contribution of welding variables. Under a constant upset pressure, the tensile strength have a little difference with an increase in friction time. At a constant friction time, the tensile strength increased with an increase in the upset pressure. The tensile fracture of Cu to Ti joint occurred at the Cu base material near the interface.
Taylor 모델을 이용한 역동역학 뉴로제어기의 설계와 전력계통 안정화장치에 적용
김문찬,부창진,김호찬 제주대학교 공과대학 첨단기술연구소 2003 尖端技術硏究所論文集 Vol.14 No.2
This paper presents an implementation of power system stabilizer using inverse dynamic neuro controller. Traditionally. mutilayer neural network is used for a universal approximator and applied to a system as a neuro-controller. In this case. at least two neural networks are used and continuous tuning of neuro -controller is required. Moreover, training of neural network is required considering all possible disturbances, which is impractical in real situation. In this paper,Taylor Model Based Inverse Dynamic Neuro Model (TMBIDNM) is introduced to avoid this problem. Inverse Dynamic Neuro Controller(IDNC) consists of TMBIDNM and Error Reduction Neuro Model(ERNM). Once the TMBIDNM is trained. it does not require retuning for cases with other types of disturbances. The controller is tested for one machine and infinite-bus power system for various operating conditions.