• 대한한의학원전학회지
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• 제36권1호
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• pp.79-107
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• 2023

Objectives : This study aims to improve the diagnosis and treatment of contemporary insomnia by examining Zhang Jiebin's discussion on treating insomnia. Methods : The classical texts from the 'Insomnia' chapter of the Jingyue Quanshu were examined threefold in terms of symptom, treatment, and prescription analysis, after which the treatment discussion part was examined within the historical context of discussions on insomnia in major medical texts starting from the Huangdineijing. Results : According to Zhang, the cause of insomnia could be divided into two, after which criteria for diagnosis and treatment were set as excess pathogen and vital qi deficiency. He argued that insomnia could be naturally resolved through improvement of various pathogenic situations. Discussions on insomnia from various medical texts since the Huangdineijing suggest that pathology related to psychological function and emotions gradually increased and expanded over time. Conclusions : Zhang's discussion on symptom, treatment and prescriptions of insomnia suggests a new framework that could improve treatment effects through a Korean Medical Mind-Body approach, rather than the contemporary classification of organic insomnia and non-organic insomnia.

• 대한물리치료과학회지
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• 제3권4호
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• pp.181-187
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• 1996

The purpose of this study is to help understand the pressure pain threshold's comparison following time progress after IMS to the trigger point and recognize this methode' effect for treating these kind of myofascial pain syndrome in clinic. Resently, myofascial pain syndrome is a disease that keeps the highest rate of patients visiting the Department of Rehabilitation Medicine. and so one should understand the change of IMS'effect following time progress for patients to be dealt rightly in clinic. In addition, the theory and treatment of myofascial pain syndrome needs to be understood or to be dealt rightly for therapists to treat and to approach to the right moment in right mode for the patients with myofascial pain syndrome. Therefore, one should know where to stimulate and why one stimulate trigger point and what effect one obtain after IMS.

• 환경위생공학
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• 제14권4호
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• pp.1-8
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• 1999

This study was aimed ultimately to develop an adsorption process treating heavy metal wastewater by utilizing activated carbon using flyash. The affecting factors in adsorption process on heavy metal by flyash adhesion-activated carbon are s follows. Factors such as pH, and quality of activated carbon, and reaction time made batch adsorption isotherm described adsorption capacity was made use of the investigation to evaluate adsorptive possibility of heavy metal.As the results of this study, H ion has influence on adsorption of heavy metal if pH is low. As reaction time is transformed, factors such as optimum reaction time is taken into consideration an adsorptive process of heavy metal because an adsorption and a reduction process occur. Adsorption isotherm of adhesion-activated carbon was generally obeyed to Freundlich formular than Langmuir formular and Freundlich constant, l/n were obtained in the range of 0.1~0.5.

• 한국환경보건학회지
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• 제27권4호
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• pp.73-78
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• 2001

Hair will be persuit of beautifulness of human being in various permanent wave by many kinds of its drugs. Skin is based upon the hair which enroll the body of high living animals and have multiple membrane structure In this study used rat the effects of commercial permanent wave products to skin which are composed with L- cysteine and bases Results are as follow: the content of penetration 4 hors later with steady state and no significant changeable after 20 hours later. In cysteine groups, lag time and permeability coefficient of healthy skin is 2.22hr and 0.13$\mu\textrm{g}$/㎥ hr, lag time and permeability coefficient of old skin is 4.01 hr and 0.108 $\mu\textrm{g}$/㎥ hr . In conclusion of study lag time and permeability coefficient in old skin and wounded skin are faster than healthy skin. We notified that fine rinkle and rash of skin were changeable in the case of treating with permanent wave drugs than normal skin.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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• pp.721-723
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• 2005

We applied the Atmospheric Pressure Plasma (AP-plasma) to the MgO film to try to control the Aging-time on the PDP production-line. The MgO film surface and the discharge characteristics of AC-PDPs were investigated, using the plasma-treated MgO film. The Aging-time change can be achieved by treating the MgO film with plasma. This method can be adapted to the mass production-line.

• 대한전기학회논문지
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• 제43권2호
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• pp.259-267
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• 1994

This paper describes a current control of a single-phase PWM inverter. The proposed PWM inverter utilizes the instantaneous control method which is based on the real-time digital feedback control and the microprocessor-based deadbeat control. The deadbeat current controller is proposed to control the output current regardless of load component variations by the same method as voltage control. That is, in current control, with a very short sampling time and the successive feedback of the output current, the load current is mainly effected by the magnitude of load impedance rather than load component, the load current is mainly effected by the magnitude of load impedance rather than load component. Therefore, by treating the load as an impedance, the system's order is reduced and the instantaneous current control using the proposed deadeat controller is simplified.

• Nuclear Engineering and Technology
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• 제43권6호
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• pp.523-530
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• 2011

In a previous study, the stochastic space-dependent kinetics model (SSKM) based on the forward stochastic model in stochastic kinetics theory and the Ito stochastic differential equations was proposed for treating monoenergetic space-time nuclear reactor kinetics in one dimension. The SSKM was tested against analog Monte Carlo calculations, however, for exemplary cases of homogeneous slab reactors with only one delayed-neutron precursor group. In this paper, the SSKM is improved and evaluated with more realistic and complicated cases regarding several delayed-neutron precursor groups and heterogeneous slab reactors in which the extraneous source or reactivity can be introduced locally. Furthermore, the source level and the initial conditions will also be adjusted to investigate the trends in the variances of the neutron population and fission product levels across the reactor. The results indicate that the improved SSKM is in good agreement with the Monte Carlo method and show how the variances in population dynamics can be controlled.

• 한국정밀공학회지
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• 제12권5호
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• pp.57-68
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• 1995

A general procedure for the numerical solution of coupled, nonlinear, differential two-point boundary-value problems, solutions of which are crucial to the controller design, has been developed and demonstrated. A fixed-end-points, free-terminal-time, optimal-control problem, which is derived from Pontryagin's Maximum Principle, is solved by an extension of Davidenko's method, a differential form of Newton's method, for algebraic root finding. By a discretization process like finite differences, the differential equations are converted to a nonlinear algebraic system. Davidenko's method reconverts this into a pseudo-time-dependent set of implicitly coupled ODEs suitable for solution by modern, high-performance solvers. Another important advantage of Davidenko's method related to the time-optimal problem is that the terminal time can be computed by treating this unkown as an additional variable and sup- plying the Hamiltonian at the terminal time as an additional equation. Davidenko's method uas used to produce optimal trajectories of a single-degree-of-freedom problem. This numerical method provides switching times for open-loop control, minimized terminal time and optimal input torque sequences. This numerical technique could easily be adapted to the multi-point boundary-value problems.

• International Journal of Reliability and Applications
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• 제7권2호
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• pp.101-110
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• 2006

Let E be a set of n quantitative observations under the time control. The interval of time is to be split into several subintervals such that the observations in each subinterval are almost similar, whereas the observations between the subintervals are very dissimilar. The corresponding time-subintervals become periods or phases of the development that exist in the underlying phenomenon. Aboukalam(2005) proposes a robust solution based on some initial subintervals and a technique for combining any two successive groups in that starter using a t-test under a fixed significant level ($\alpha$). The inconvenience is that; the technique reliability is not released from the level $\alpha$ which must not be defined apart from the number of the periods that is, in its turn, unknown. To avoid this, we propose what so called; most significant periods solution. The new technique constructs its own initial subintervals and uses another way for combining the groups. However, the way of determining and treating outliers has not changed. This paper conducts many empirical simulations using different possible time dominated data in order to illustrate the reliability of the proposed technique. Finally, we apply both techniques on some real time dominated data to explain the advantage of the proposal.

• 대한한의학방제학회지
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• 제20권1호
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• pp.89-99
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• 2012

Objectives : This report describes 36 formulas including Asparagi Radix and Liriopis Tuber in Dongeuibogam. Asparagi Radix and Liriopis Tuber have been used separately or concurrently in Oriental Medicine for a long time as a treatment for various diseases. Methods : 36 formulas including Asparagi Radix and Liriopis Tuber as a main component which have been used separately or concurrently in Oriental Medicine for a long time as a treatment for various disease in Dongeuibogam were studied through order of frequency, symptoms, dosages, etc. Results : 1. 6 formulas are recorded in fatigue chapter, 5 formulas in blood chapter 7 formulas in body shape chapter and fire chapter each which are arranged in order of frequency. 2. Enhancing strength and life span herbs are most used in formulas including Asparagi Radix and Liriopis Tuber. General fatigue treating herbs, severe bleeding cold, fire moving by yin-deficiency and kidney malfunction treating herbs are following frequency among 25 symptoms in formulas including Asparagi Radix and Liriopis Tuber. 3. The dosages of Asparagi Radix which is used same amount Liriopis Tuber are ranged from 2.5 puns~2 jeons. 1 jeon is recorded 13(36.1%), 5 puns is 6(16.7%), 7 puns and 2 jeons are recorded 4(11.1%), the rests are 3(8.3%) used among 36 formulas including Asparagi Radix and Liriopis Tuber. 4. The frequencies of Asparagi Radix and Liriopis Tuber have 9(25.0%) in decoctions groups, 27(75.0%) in the other groups except decoctions. So the ratio of decoctions groups to the other groups in being used is about 1:3. Decoction groups are used in enhancing Yin and descending fire, on the other hands the other groups except decoctions are used in well-being in whole life. Conclusions : The 36 formulas including Asparagi Radix and Liriopis Tuber in Dongeuibogam are mainly composed of Eedong-go, Insamgobon-hwan, Gamri-hwan, Samjae-hwan, Saengjihwang-go, Naebo-hwan, etc.