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허정윤(Jung Yoon HEO) 창조론오픈포럼 2019 창조론오픈포럼 Vol.13 No.1
The Genesis says God created the Universe and all the creatures in six ‘YOMs’(days). Some Christians insist headstrongly that the age of the earth is only about 6,000years on the basis of the Genesis. They interpret that ‘YOM’ is literally a day of 24 hours. Can it be believable? Also the Genesis says God created ‘RAQIA’(firmament) in the water and divided the water over and below it. And God lift up ‘RAQIA’ in the sky and made Heaven with it. Also can it be believable? This article is to provide answers to the two unbelievable questions in the view of modern perspective.
허정윤(Jung Yoon HEO) 창조론오픈포럼 2019 창조론오픈포럼 Vol.13 No.2
The Origin of Life has been the main issue of the controversies between creationists and evolutionists. While creationists depend on the literal interpretation of the Bible, evolutionists have the tendency distorting related scientific data. In this article, the author tries to criticize these unfair issues.
직접분사식 단기통 디젤엔진에서 다단분사에 따른 연소 및 배기특성
허정윤(Jeong Yun Heo),차준표(Junepyo Cha),윤승현(Seung Hyun Yoon),이창식(Chang Sik Lee) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The purpose of this work is an experimental investigation combustion and emission characteristics in DI diesel engine applied multiple injection strategy. In order to analyze the effect of multiple injection, single-cylinder DI diesel engine was operated under electrically controlled fuel injection system. In this study, multiple injections were injected as two types of multiple injection that were defined as the pilot injection and the post injection. The pilot injection and the post injection was injected 30% of total fuel injections mass quantity. The results of multiple injection were compared to those of single injection and each multiple injection types. To investigate for a low speed engine and middle range load, the experimental conditions were conducted under a fixed engine speed and constant stoichiometric ratio condition. The combustion results show that each multiple injections decreases peak heat release rates but increases indicated mean effective pressure. The emissions results that pilot injection increases emissions but post injection reduces NOx, HC and CO emissions.
<과학과 신의 전쟁>에 나타난 ‘과학적 유신론’ 바로 읽기
허정윤(Jung Yoon HEO) 창조론오픈포럼 2017 창조론오픈포럼 Vol.11 No.2
This article is to read and understand Scientific Theism in The War Between God and Science written by the author. Scientific Theism explains the existence of God scientifically, criticizing and opposing against Scientific Atheism. Scientific Theism starts from the sum of universal energy which the first law of thermodynamics proves existing eternally and indestructibly, which Parmenides called the One, meaning the first cause of everything, which Laotzu described as the first Nature in his Taoism of thingness and nothingness, and which big bang theory says Singularity. The most important suggestion of Scientific Theism is that God has already been as the first Life in the sum of Universal energy, and God created physical law for our universe by big bang, and living law for life in the planet by dividing His life. At last Scientific Atheism has collapsed by Scientific Theism.
커먼레일 단기통 디젤엔진에서 EGR율에 따른 연소 및 배기특성
허정윤(Jeong Yun Heo),윤승현(Seung Hyun Yoon),박성욱(Sung Wook Park),이창식(Chang Sik Lee) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
The purpose of this work is an experimental investigation of combustion and emission characteristics in DI diesel engine applied high EGR rate as known general method of low-temperature combustion. In order to analyze theeffect of EGR rate variation, single-cylinder DI diesel engine was operated under various EGR rate conditions. In addition, injection timing conditions was variously controlled to investigate the effect of injection timing in DI diesel engine using the EGR system. NOx emissions were decreased, as a result, by increasing EGR rate. Soot emissions were generally increased under applied EGR conditions. However, soot emissions were decreased in a few injection timings under high EGR rate conditions. The results showed that the charge could have a premix period sufficiently due to be increased the ignition delay period by decreased oxygen concentrations in combustion chamber under the high EGR rate.
허정윤(Jung Yoon HEO) 창조론오픈포럼 2018 창조론오픈포럼 Vol.12 No.2
This article is provoked by Terry Mortenson who published a booklet 〈Seven Reasons Why We should Not Accept Millions of Years〉. In the booklet Mortenson denounces scientists who proposed theories of millions years of the earth age, and Christian scholars who attempted to fit the theories into the Bible. The theories includes the Day-Age theory, Gap theory, Local Flood theory, Framework hypothesis, Theistic Evolution, Progressive Creation and so on, excluding the only theory of the earth-age 6,000 years. Reviewing carefully of the evidences of the Bible and scientific theories related with this subject, the author criticizes Mortenson’s view in 〈Seven Reasons Why We should Not Accept Millions of Years〉.