PWM 전압제어로 생체에 필요한 알칼리 이온수의 농도(ph)변화에 관한 연구

권윤중,이성창 대한전자공학회 2004 電子工學會論文誌-SC (System and control) Vol.41 No.06

It is necessary for what just keep a living body balance be devoted to it being varied with acidity serious trouble, and constitution of a study person about the density (ph) change that an alkaline ion necessary for a living body is numerical to supply a human body with number alkali by PWM voltage control. Works in the water which included the calcium (Ca), kalium (K), magnesium (Mg), natrium (Na) back who is helpful for a human body, and there is Alkaline. It is done this alkaline electrolysis to ask in order to create a number, and minerals are gathered through isolated layer (isolated special layer) to a - electrode direction, and is created. of course, prominent derelicts gather, and the acidity capital is happened, and -ion of a chlorine (Cl), phosphorus(P), sulfur (S) back is usable unfavorably in water of different use to a + electrode direction. Microprocessor was used with a - pole and a + pole with a PWM(pulse width modulation) voltage in this electrolysis process, and four kinds of PWM voltages were implemented, and a voltage every ph density change tried to be considered. It is expected by getting exactly if number alkaline ion of ph density value necessary is done with setting value if PWM control is used thus. 사람의 체질이 산성화로 변화되는 것을 막고 생체 밸런스를 유지하기위해 알칼리수를 인간의 인체에 공급할 필요가 있다. 알칼리수는 인체에 유익한 칼슘(Ca),칼륨(K),마그네슘(Mg),나트륨(Na)등을 포함한 물로 되어있다. 이러한 알칼리수를 생성하기 위해서는 물을 전기분해하여 격막(격리된 특수막)을 통해 - 전극 쪽으로 미네랄들을 모아 생성한다. 물론 반대로 + 전극 쪽 으로는 염소(Cl),인(P),유황(S) 등의 - 이온을 띈 유기물들이 모여 산성수도 발생되어 다른 용도의 물로 사용할 수 있다. 이 전기분해 과정에서 - 극판과 + 극판에 PWM(pulse width modulation)전압을 Microprocessor를 이용하여 4종류의 PWM 전압을 구현하고, 전압별 ph농도 변화를 고찰해 보았다. 이와 같이 PWM제어를 이용하면 필요한 ph농도 값의 알칼리 이온수를 설정 값으로 하면 정확하게 얻을 것으로 예상된다.

PWM전압제어에 의한 용존수소수기 다단제어

권윤중 대한전자공학회 2019 전자공학회논문지 Vol.56 No.12

The causes of disease and aging found in modern science are called free radicals, which are toxic in humans. As a method for removing such active oxygen, water has been studied in various ways. Dissolved hydrogen water is an antioxidant that removes free radicals stored in the human body. Dissolved hydrogen water has a reduced value in which the redox potential (ORP) is negative in water. This role of reduction removes or releases free radicals from the body. In general, there are two methods of easily making dissolved hydrogen water: a method of placing water in a magnesium container and a method of dissolving hydrogen by injecting hydrogen gas into the water. The downside of this approach, however, is that you have to wait for 20 to 30 minutes, or when you're exposed to the air, the hydrogen quickly disappears into the atmosphere. Therefore, in this paper, when the dissolved hydrogen water is produced by electrolysis, hydrogen is adsorbed to the minerals without the waiting time, and the dissolved time of hydrogen in the water becomes longer. And with multi-stage control, the user can easily get the required amount of dissolved hydrogen. To make this, the amount of dissolved hydrogen in each stage was measured and measured by PWM voltage control. Finally, in this study, other components contained in dissolved hydrogen water generated by electrolysis method of PWM voltage control, ozone, chlorine, trihalometal, etc. are not measured. This may be necessary. 현대과학에서 밝혀진 질병과 노화의 원인이 사람 몸속에 많이 포함된 독성을 가진 활성산소라 한다. 이와 같은 활성산소를 없애기 위한 방법으로 물이 다양하게 연구되고 있다. 그 중에서 최근 연구가 되고 있는 물이 용존수소수이다. 용존수소수는 인간의 몸에 축적된 활성산소를 없애는 항산화물질이다. 용존수소수는 물속에 산화환원전위(ORP)값이 마이너스 전압인 환원 값을 가지고 있다. 이러한 환원의 역할이 활성산소를 몸에서 제거하거나 배출시킨다. 일반적으로 용존수소수를 쉽게 만드는 방법은 마그네슘용기에 물을 담아두는 방법과 물속에 수소가스를 주입하여 수소를 용존 시키는 방법이 있다. 그러나 이러한 방법은 단점은 20분에서 30분가량 기다려야하거나 공기 중으로 노출되면 수소가 대기 중으로 금방 없어진다. 그래서 본 논문에서는 전기분해방식으로 용존수소수를 만들면 대기시간이 걸리지 않고 미네랄에 수소가 흡착되어 물속에 수소의 용존 시간이 길어진다. 그리고 다단 제어로 사용자가 필요한 용존 수소의 양을 쉽게 얻을 수 있다. 이를 만들기 위해 PWM전압 제어로 각 단별 용존수소량을 다르게 만들어 계측하여 비교 실험을 하였다. 마지막으로 본 연구에서 PWM전압제어의 전기분해방식으로 생성되는 용존수소수에 포함된 다른 성분인 오존, 염소, 트리할로메탈 등은 측정하지 않아 이를 직접식음용으로 사용할 경우 별도로 유해성분의 여부의 확인이 필요할 것으로 사료된다.

Lactobacillus bulgaricus의 Bacte riophage내 성균주 개량에 관한연구

권윤중 忠州大學校 1984 한국교통대학교 논문집 Vol.17 No.2

A lactic starter organism Lactobacillus bulgaricus YIT 1015 was treated with N-methyl-N-nitrosoguanidine(NTG) to obtain phage- resistant mutants. Freshiy grown cells suspended in citrate buffer were exposed to NTG of 50g/㎖ for 40 min. Among 88 colonies isolated eight colonies showed distinct resistance to phages isolated preriously from milk plants. The eight new colonies showed character similar to the original L.bulgaricus except that they responded differently to phage of different sources and thus were designated as eight different mutants of L.bulgaricus. From the phage resisting together with the fermentative ability equivalent to the mother organism the mutants may be considered to be used as starter cultures for fermented milk.

Optimization of the Pretreatment of Rice Straw Hemicellulosic Hydrolyzates for Microbial Production of Xylitol

권윤중,Seoung-Chul Baek 한국생물공학회 2007 Biotechnology and Bioprocess Engineering Vol.12 No.4

Hemicellulosic hydrolyzate obtained from rice straw was evaluated to determine if it was a suitable fermentation medium for the production of xylitol by Candida mogii ATCC 18364. To obtain xylose selectively from rice straw, it is important to establish rapid hydrolysis conditions that yield xylose-rich substrates. The results of hydrolysis experiments indicated that the optimal reaction conditions for the recovery of xylose from rice straw hemicellulose were obtained using a sulfuric acid concentration of 1.5%, a reaction temperature of 130℃, a reaction time of 20 min and a solid to liquid ratio of 1:10. Because the fermentation of concentrated acid hydrolyzates can be inhibited by compounds present in the raw material or produced during the hydrolysis process, various methods were tested to determine if they could detoxify the hydrolyzates and thus improve xylitol production. The greatest xylitol yield (0.53 g/g) and volumetric productivity (0.38 g/L·h) were obtained when an overlimed hydrolyzate was treated with activated charcoal.

PWM 전압제어로 생체에 필요한 알칼리 이온수의 농도(ph)변화에 관한 연구

권윤중,이성창 대한전자공학회 2004 電子工學會論文誌-SC (System and control) Vol.41 No.6

사람의 체질이 산성화로 변화되는 것을 막고 생체 밸런스를 유지하기위해 알칼리수를 인간의 인체에 공급할 필요가 있다. 알칼리수는 인체에 유익한 칼슘(Ca/sup +/), 칼륨(K/sup +/), 마그네슘(Mg/sup +/), 나트륨(Na/sup +/)등을 포함한 물로 되어있다. 이러한 알칼리수를 생성하기 위해서는 물을 전기분해하여 격막(격리된 특수막)을 통해 - 전극 쪽으로 미네랄들을 모아 생성한다. 물론 반대로 + 전극쪽으로는 염소(Cl), 인(P), 유황(S) 등의 - 이온을 띈 유기물들이 모여 산성수도 발생되어 다른 용도의 물로 사용할 수 있다. 이 전기분해 과정에서 - 극판과 + 극판에 PWM(pulse width modulation)전압을 Microprocessor를 이용하여 4종류의 PWM 전압을 구현하고, 전압별 ph농도 변화를 고찰해 보았다. 이와 같이 PWM제어를 이용하면 필요한 ph농도 값의 알칼리 이온수를 설정 값으로 하면 정확하게 얻을 것으로 예상된다. It is necessary for what just keep a living body balance be devoted to it being varied with acidity serious trouble, and constitution of a study person about the density (ph) change that an alkaline ion necessary for a living body is numerical to supply a human body with number alkali by PWM voltage control. Works in the water which included the calcium (Ca), kalium (K), magnesium (Mg), natrium (Na) back who is helpful for a human body, and there is Alkaline. It is done this alkaline electrolysis to ask in order to create a number, and minerals are gathered through isolated layer (isolated special layer) to a - electrode direction, and is created. of course, prominent derelicts gather, and the acidity capital is happened, and -ion of a chlorine (Cl), phosphorus(P), sulfur (S) back is usable unfavorably in water of different use to a + electrode direction. Microprocessor was used with a - pole and a + pole with a PWM(pulse width modulation) voltage in this electrolysis process, and four kinds of PWM voltages were implemented, and a voltage every ph density change tried to be considered. It is expected by getting exactly if number alkaline ion of ph density value necessary is done with setting value if PWM control is used thus.

망막결상 광로변경에 이용되는 프리즘 왜곡보정에 관한 연구

권윤중,남상엽,이성창 대한전자공학회 2004 電子工學會論文誌 IE (Industry electronics) Vol.41 No.04

A process getting images in a function of eye of human is transmitted to the optic nerve in the retina through camera and crystalline in this paper. Macula becomes forvea centralis through this process, and size is approximately 3mm. The research shows that shaped optical path shift, the retina could receive the formed image even if the location of those image mapped on the retina move from beyond the macula but the sensitivity of the image generally lower than the original image. Such distortion can be occurred due to aberration of prism. This study shows how to correct the distortion that exclude the general concept of Seidel Aberration and use a prism which is installed on the front of the camera to rotate the formed image when the formed image which is transferred by degree can be corrected by this process. This study proves it through the experiment. 본 논문에서는 인간의 눈의 기능에서 상이 맺혀지는 과정은 각막과 수정체를 통해 망막에서 시신경으로 전달된다. 그중에서도 황반부가 중심시가 되며 크기는 약 3mm정도이다. 여기서 황반부에 문제가 생겨 결상위치를 프리즘을 이용해서 약간 이동시켜주면 황반부 보다는 감도가 약하지만 감지하여 상을 느낀다. 이 과정에서 프리즘의 수차에 의해 왜곡 현상이 일어난다. 단, 일반적인 자이델수차(Seidel Aberration)는 배제하고 결상각도를 45도 단위로 이동 할 때의 왜곡을 보정하고자 카메라 전단에 상반되는 프리즘을 이용하여 정상적인 물체가 결상되도록 왜곡 보정을 실험을 통해 검증하였다.

Kinetic Model For Mixed Culture On Multiple Substrates

권윤중,이호 경기대학교 사회과학연구소 1998 경기대학교 기초과학논문집 Vol.11 No.1

벼의 열적 성질들

權閏重 忠州大學校 1983 한국교통대학교 논문집 Vol.16 No.2

Increasing mechanization in the rice drying gas stressed the importance of calculation of heat and mass transfer in a rice bulk in order to be able to optimize drying conditions. Therefore values of the thermal properties of rough rice were determined. Specific heat, bulk thermal conductivity and diffusivity were found to be a linear function with moisture content.

Kinetic Model For Mixed Culture On Multiple Substrates

권윤중,이호 경기대학교 기초과학.의학물리연구소 1998 기초과학논문집 Vol.11 No.-

Kinetic Models for Growth and Product Formation on Multiple Substrates

권윤중,Cady R. Engler 한국생물공학회 2005 Biotechnology and Bioprocess Engineering Vol.10 No.6

Hydrolyzates from lignocellulosic biomass contain a mixture of simple sugars; the predominant ones being glucose, cellobiose and xylose. The fermentation of such mixtures to ethanol or other chemicals requires an understanding of how each of these substrates is utilized. Candida lusitaniae can efficiently produce ethanol from both glucose and cellobiose and is an attractive organism for ethanol production. Experiments were performed to obtain kinetic data for ethanol production from glucose, cellobiose and xylose. Various combinations were tested in order to determine kinetic behavior with multiple carbon sources. Glucose was shown to repress the utilization of cellobiose and xylose. However, cellobiose and xylose were simultaneously utilized after glucose depletion. Maximum volumetric ethanol production rates were 0.56, 0.33, and 0.003 g/L·h from glucose, cellobiose and xylose, respectively. A kinetic model based on cAMP mediated catabolite repression was developed. This model adequately described the growth and ethanol production from a mixture of sugars in a batch culture.