• The Journal of Korean Medical History
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• v.23 no.2
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• pp.1-13
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• 2010

The early Joseon era was a period when various medical systems were established and many medical literatures were published. Hwang Ja-hu(黃子厚) was a civil minister and medical professional who worked hard for maintaining government administrative system and medical regime during the Taejong and Sejong reign. Hwang Ja-hu followed his father and made MiReukWon(彌勒院) prosperous for the homeless people around Chungcheong-do Hoedeok. Hwang Ja-hu was talented in policy development as a government official. He was also learned in medicine, thus always doubled as head of JeonUiGam(典醫監). Hwang Ja-hu reformed the irrationalities in medical regime. He legalized JeonUiGam duties such as the presenting of the medicine or the preparation of the medicine and had the doctors take charge. He also suggested training acupuncture specialists(鍼灸專門醫). Hwang Ja-hu played a leading role in spreading HyangYak(鄕藥) throughout the country and reissuing [HyangYakGuGeupBang(鄕藥救急方)] due to personal philanthropism and service. He tried to defeat illnesses by letting the common people understand the symptoms and use medicine accordingly. Also he intended [HyangYakGuGeupBang(鄕藥救急方)] which was written focused on 'easiness book'(簡易方), 'experience book'(經驗方) to be used for the common people because [HyangYakJipSungBang(鄕藥集成方)] was made up a huge volume andused for training medical professionals and for accumulating knowledge. Hwang Ja-hu pursed subdivision of medical systems and specialization of medicine but also promoted medical rights. We should continue to discover and introduce medical figures who understood medicine and improved the medical systems.

• Journal of Korean Medical classics
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• v.18 no.1 s.28
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• pp.137-145
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• 2005

${\ulcorner}$Hwang\;Jae\;Nai\;Kyung${\lrcorner}$ is the greatest and oldest book on oriental medicine. It contains all the basic theories of oriental medicine. OB&GY in oriental medicine have been developed on the foundation of ${\ulcorner}$Hwang\;Jae\;Nai\;Kyung${\lrcorner}$. However no intensive gynecological studies on ${\ulcorner}$Hwang\;Jae\;Nai\;Kyung${\lrcorner}$ has been performed to this day. Hereupon, an investigation on OB&GY in Hwang Jae Nai Kyung is done for future theory and clinical study. The phrases that contain OB&GY are totally 24 in the chapter 16 of Somun and total of 9 in the chapter 8 of Youngchu. Phrases dealing with pregnancy were total of 9, which was the most frequent. Also statements about amenorrhea, lower abdominal pain, bleeding, discharge, menstruation, jangdam, sukga, postpartum, infertility were found. Hence, more studies of OB&GY in ${\ulcorner}$Hwang\;Jae\;Nai\;Kyung${\lrcorner}$ is needed in order to verify and apply the theories stated in ${\ulcorner}$Hwang\;Jae\;Nai\;Kyung${\lrcorner}$.

• Korean Journal of Pharmacognosy
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• v.31 no.3
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• pp.310-319
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• 2000

WooHwangChungSimWon is a traditional prescription formula for treating with hypertension, arteriosclerosis, coma, and stroke in China, Korea, and Japan. In the new prescription of WooHwangChungSimWon, the civet is substituted for the musk, the major component of WooHwangChungSimwon, because of the prohibition law (CITES) on the commercial use of musk. We have made a comparative study of the effects on the hypertension and contractile force of heart between the musk-containing and civet-containing WooHwangChungSimWon. The SHR rats were used for investigating the effects on the hypertension and the rabbits were used for investigating effects on the contractile force of isolated heart. The blood pressure which was recorded during the adminstration period showed that all the samples except the low dose of musk-containing WooHwangChungSimWon decreased the blood pressure, and the effects on the heart works of all the samples were higher than control group, which resulted from the examination of isolated heart. These results suggest that all the musk-containing and civet-containing WooHwangChungSimWon formula have similar protective effects on hypertension and palpitation.

• Journal of the Korea institute for structural maintenance and inspection
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• v.14 no.3
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• pp.152-159
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• 2010

Recently, the public interest in eco-friendly material and structure has been increasing and many Hwang-toh researches are being actively performed. Hwang-toh is one of the traditional environment friendly construction materials used as a construction and plastering material. Hwang-toh has many advantages as construction material due to its high heat storage capacity, auto-purification, antibiotic ability, and infrared ray emission characteristics. But, currently it has not been developed into construction material and used in modern construction due to its low strength and dry shrinkage cracking prone characteristics. According to the recent researches and study results, Hwang-toh can be used as a natural pozzolanic material like fly-ash or pozzolan. In this study, mechanical properties and structural flexure behavior experiments of slag, recycled PET fiber, and Hwang-toh added concrete are carried out. The test results showed that drying shrinkage of concrete mixed with Hwang-toh has lower compressive strength and elastic modulus than those of control cement concrete specimen, but it has the similar flexural behavior in reinforced concrete beams.

• 한국신재생에너지학회:학술대회논문집
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• 2007.11a
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• pp.669-669
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• 2007

• Proceedings of the Korean Vacuum Society Conference
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• 2006.08a
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• pp.102-102
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• 2006

• The Journal of the Acoustical Society of Korea
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• v.16 no.4
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• pp.90-93
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• 1997

In Korean traditional music, the frequency of Hwang-Jong tone is not known precisely, to say nothing of the temperament. So we measured the frequency of Hwang-Jong tone in solo pieces for the woodwind instruments such as daegum, piri and danso. According to the results of the measurement, the frequency of Hwang-Jong tone is about 328Hz, which is closer to the frequency of E$_3$(330Hz) than that of E$^b_3$(311Hz). This result is different from the existing theory that the frequency of Hwang-Jong tone is close to that of E$^b_3$.

• KIEAE Journal
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• v.7 no.3
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• pp.89-96
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• 2007

The purpose of this experimental study is to investigate the compressive strength, shear strength, bending strength, and crack control by the mixture of the hwang-toh. The size of compressive specimens is $200{\times}200{\times}400(mm)$, and the size of shear, bending specimens is $200{\times}200{\times}600(mm)$. Finally, crack control specimens for comparative comparison is $200{\times}200{\times}15(mm)$. The mixture of the hwang-toh is as follows; Hwangtoh( H)+Water(W), H+W+Sand(S), H+W+S+sTraw(0.5%), H+W+S+sT(1.0%). The actual height, width, and the length are measured at the center of all specimens. The main parameters are mixture ratio of hwang-toh, straw and age of specimens. The test results are as follows. (1) The compressive strength is linearly increased until 15 weeks according to specimen ages. (2) About crack control, the specimen added in 1% straw is the most effective.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.309-309
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• 2020

직립 구조물을 지나는 천수 흐름의 해석에서 구조물에 의한 영향이 지배적인 그 전면과 비교적 덜한 그 위의 영역으로 구분하여 흐름률을 계산하는 새로운 기법이 제안되었으며, 그 모의 결과는 정확해, 가상의 문제에 대한 3차원 모의 결과, 그리고 실험 결과와 대체로 만족스런 일치를 보였다(Hwang, 2015; Hwang, 2016). 또한, Hwang (2019)은 측면 위어에 대한 부정류 실험(Kim, 2013)에서 직립의 측면 위어를 통해 수로와 저류지 사이의 흐름이 교환되는 실험 경우에 적용하여 새로운 기법에 의한 수치 모형을 시험한 바 있다. 이 연구에서는 측면 위어에 대한 Kim (2013)의 나머지 실험 경우에 대해서도 Hwang (2015)의 기법을 적용하여 불연속 지형을 이루는 직립 측면 위어의 월류량을 평가하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.248-248
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• 2022

Hwang(2015)은 불연속 지형을 지나는 천수 흐름의 수치 해석에서 불연속 전면에 의한 추력(thrust)에 주목하여 그 영향을 흐름률(flux) 계산에 반영하는 새로운 기법을 제시하였다. 이 기법 덕분에 수심 적분 모형으로도 계단이나 보와 같이 직립한 하천 구조물의 불연속면을 경사로 완화하지 않고 직접 모의할 수 있다. 직립 측면 위어 실험에 Hwang(2015)의 기법이 적용됨으로써 연직면을 경사면으로 완화하여야 하는 기존의 수심 적분 모형에 비해 계산 격자 개수가 53%로 줄었다(Hwang, 2019). Hwang(2019)은 기존 모형과 비교를 통해, 정확도를 어느 정도 유지하면서도, 소요된 계산 시간이 20%에 불과하다고 주장하였다. 여기에서는 보다 다양한 직립 광정 위어 실험에 적용하여 수심 적분 모형에 의한 월류량을 검토하고자 한다.