• Journal of the Korean Home Economics Association
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• v.44 no.11
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• pp.107-116
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• 2006

This study aimed to identify parents' experiences of child-rearing on Saturday with no class as well as their perceptions and demands on the Five-day School Week system. The study participants were 640 parents with first to second grade children. The major results were as follows: First, parents were generally satisfied with the Five-day School Week System. Second, the Five-day School Week System increased fathers' role-sharing on the Saturday with no class. It was also related with some of the demographic variables and the Five-Week Workweek System of the father and the mother. Third, both the fathers and mothers had more parenting stress on Saturdays with no class than on Saturdays with classes. Their parenting stress on Saturdays with no class was related with some demographic variables and work flexibility.

• The Journal of Korean Medical History
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• v.24 no.2
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• pp.105-116
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• 2011

Objective : Foods could be materia medica through food-therapy in oriental medicine. "Sikryochanyo" is a food-therapy book totally. Therefore, there are many kinds of food are treated as materia medica. Method : Finding out cases of food-therapy with Five-Grain(RIce, Barley, Millet, Soy, Panicum miliaceum) in "Sikryochanyo" Result : In "Sikryochanyo", there were many methods of food-therapy with Five-Grain. Five-Grain were treated as materia medica even though they were usual food as normal meal. Conclusion : Five-Grain used in "Sikryochanyo" as many types of themselves and they had objectively effects comparing with "Materia Medica".

• International Journal of Precision Engineering and Manufacturing
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• v.9 no.3
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• pp.75-78
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• 2008

Tire molds are manufactured by aluminum casting, direct five-axis machining, and electric discharging machining. Master models made of chemical wood are necessary if aluminum casting is used. They are designed with a three-dimensional computer-aided design system and milled by a five-axis machine. In this paper, a method for generating and machining a tire surface model is proposed and demonstrated. The groove surfaces, which are the main feature of the tire model, are created using a parametric design concept. An automatically programmed tool-like descriptive language is presented to implement the parametric design. Various groove geometries can be created by changing variables. For convenience, groove surfaces and raw cutter location (CL) data are generated in two-dimensional drawing space. The CL data are mapped to the tread surface to obtain five-axis CL data to machine the master model. The proposed method was tested by actual milling using the five-axis control machine. The results demonstrate that the method is useful for manufacturing a tire mold.

• Proceedings of the KIPE Conference
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• 2006.06a
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• pp.95-97
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• 2006

This paper investigates the field weakening operation of a five-phase IPMSM(inner permanent magnet synchronous motor). The five-phase motor can supply sinusoidal voltage and third harmonic voltage because of more freedom of control. This paper present field weakening algorithm and experimental results for five-phase IPMSM which has trapzoidal back-EMF and concentrate winding to prove the validity of the proposed algorithm.

• The Journal of Korean Medicine
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• v.33 no.3
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• pp.105-119
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• 2012

Background: In contrast to the increased interest in constitutional medicine evidenced by clinical experiences, there has been no theoretical or mathematical analysis on the stability or number of constitutional types. Objectives: The purpose of the study was to evaluate the stability of possible constitutional types and to find stable constitutional types based on imbalanced structure of five energy elements using mathematical analysis. Methods: For the 120 constitutional types which are possible by the imbalanced combination of five energy elements, vitality, stability and continuity were evaluated mathematically based on mutual activation and suppression between the five energy elements. Results: 10 constitutional types were derived. They had the highest vitality and stability, and they had permanent continuity, never changing their order of imbalanced structure. Conclusions: 10 constitutional types are logical and most reasonable when we classify the body types based on imbalanced structure of five energy elements.

• Journal of the Korean Society of Clothing and Textiles
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• v.24 no.2
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• pp.277-285
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• 2000

The purpose of this study was to quantify the relationship between the sense of touch and mechanical properties of man-made leather. The first was to develop the five conversion equations which convert mechanical properties of man-made leather into five factor scores, which express five factors of the sense of touch(surface property, stretchiness, thickness & weight, thermal property(warmth & coolness), and moisture property(sticky & clingy)). The second was to develop the conversion equation which converts five factor scores into score of the sense of touch. Five factor scores were predicted by the following mechanical properties; surface property factor by log2HB and (log2HB)2, stretchiness factor by logEM, thickness & weight factor by logT, log2HB, logW, thermal property factor by logT, logHB, logSMd, and moisture property factor by logMMD, RC, RC2, (logEM)2, RT2. Subsequently, these five factor scores were converted into score of the sense of touch. The predictive abilities of the developed equations were satisfied.

• Korean Journal of Acupuncture
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• v.39 no.2
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• pp.63-67
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• 2022

Objectives : The purpose of this study was to investigate the needling depth of five-phase acupoints and discuss the association with the depth of meridian qi. Methods : DongUiBoGam was used to determine the depth of five-phase acupoints. The depth of needling at 60 five-phase acupoints was compared between well, spring, stream, river, and sea acupoints. Results : The proximal part of the extremities had deeper needling depth than the distal part of the extremities. The targeted deqi sensation can be related to the needling depth. Conclusions : The depth of the meridian qi is related to the distinct patterns of needling depth of five-phase acupoints.

• Journal of Acupuncture Research
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• v.17 no.4
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• pp.18-27
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• 2000

There is a acupuncture method which make a difference according to the four seasons, according to body region or depth in skin. We call it Acupuncture follow the four seasons(四時刺法). In several chapters of Huangdineijing(黃帝內經) introduced Acupuncture follow the four seasons. Acupuncture follow the four seasons has two kinds of acupuncture method that is to acupuncture at body region and to acupuncture at five Su points(五兪穴). To use five Su points(五兪穴) according to Yongchu(靈樞) disagree with Nanjing(難經). In Yongchu(靈樞), the five phases property disagree with five Su points(五兪穴), but in Nanjing(難經) the five phases property agree with five Su points(五兪穴). Even if we can acupuncture the same point, there will be the different effect according as what is the purpose of doing acupuncture, and when we do acupuncture. That is to say, we can use apucupuncture for the purpose of prevention in Yongchu(靈樞), and for the purpose of healing the disease in Nanjing(難經). Therefore, because we select the point on the base of meridian Kis origin which spring out, we have to acupuncture Chong point(井穴) in winter according to Yongchu(靈樞). Because we select the point on the base of meridian Kis origin which flowing, we have to acupuncture Chong point(井穴) in spring according to Nanjing(難經). And in the base of five phases' property, the purpose of selecting five Su points(五兪穴) is the prevention according to Yongchu(靈樞), and the healing according to Nanjing(難經). So even though we acupuncture the exactly same Chong point(井穴), we can expect the effect that acupuncture method supply Ki for liver in winter. and the effect that it extract pathogenic Ki(邪氣) from the liver in spring.

• Journal of Power Electronics
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• v.14 no.1
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• pp.61-73
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• 2014

Multiphase machines are characterized by high power density, enhanced fault-tolerant capacity, and low torque pulsation. For a voltage source inverter supplied multiphase machine, the probability of load imbalances becomes greater and unwanted low-order stator voltage harmonics occur. This paper deals with the PWM control of multiphase inverters under unbalanced load conditions and it proposes a novel near-five-vector SVPWM algorithm based on the five-phase six-leg inverter. The proposed algorithm can output symmetrical phase voltages under unbalanced load conditions, which is not possible for the conventional SVPWM algorithms based on the five-phase five-leg inverters. The cause of extra harmonics in the phase voltages is analyzed, and an xy coordinate system orthogonal to the ${\alpha}{\beta}z$ coordinate system is introduced to eliminate low-order harmonics in the output phase voltages. Moreover, the digital implementation of the near-five-vector SVPWM algorithm is discussed, and the optimal approach with reduced complexity and low execution time is elaborated. A comparison of the proposed algorithm and other existing PWM algorithms is provided, and the pros and cons of the proposed algorithm are concluded. Simulation and experimental results are also given. It is shown that the proposed algorithm works well under unbalanced load conditions. However, its maximum modulation index is reduced by 5.15% in the linear modulation region, and its algorithm complexity and memory requirement increase. The basic principle in this paper can be easily extended to other inverters with different phase numbers.

• The Journal of Korean Medical History
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• v.23 no.2
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• pp.89-101
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• 2010

Lee Jae Won is a scholar who wrote the most in Euirim, a representative Oriental Medical magazine after the liberation of Korea, on the Sa-am Acupuncture Method. In order to understand the principles of this method, he proposed rather distinctive theories called the Comparative Pulse Diagnosis and the Five Constitutions. Lee Jae Won distinguished the deficiency and exuberance of the Five Phases through the Comparative Pulse Diagnosis, and set harmonizing the Five Phases by tonifying the deficient and purging the exuberant as the object of the Sa-am Acupuncture Method. He took pulses from both the patient's hands and distinguished the deficiency and exuberance of the five viscera. Then, he balanced the Five Phases by tonifying the weakest viscus and purging the strongest viscus. Lee Jae Won argued that because the Five Constitutions are something that one has innately, people suffer from differnet diseases according to their constitutions. Therefore, he argued, when treating a patient, one should first decide the constitution of the patient and then treat the patient according to his/her deficiency or exuberance. From the late 50's to early 60's, Lee Jae Won wrote Acupuncture and Moxibustion According to Yin-Yang and the Five Phases, explaining the principles of the Sa-am Acupuncture Method and its applications. Seen from this, Lee Jae Won is a person from whom we can confirm the historical lineage of the Sa-am Acupuncture Method after the liberation of Korea.