• Title/Summary/Keyword: POH

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Parameter Estimation of Perillyl Alcohol in RP-HPLC by Moment Analysis

  • Row Kyung Ho;Lee Chong Ho;Kang Ji Hoon
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.7 no.1
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    • pp.16-20
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    • 2002
  • Parameter estimations were made for the reversed-phase adsorption of perillyl alcohol (POH), a potent anti-cancer agent, on octadecylsilyl-silica gel (ODS). The average particle diameter of ODS was about $15\;{\mu}m$, and the particles were packed in the column $(3.9\;\times\;300mm)$. The mobile phase used was a mixture of acetonitrile and water, in which the acetonitrile ranged between 50 and $70\;(v/v\;\%)$. The first absolute moment and the second central moment were determined from the chromatographic elution curves by moment analysis. Experiments were carried out using POH solutions within the linear adsorption range. The fluid-to-particle mass transfer coefficient was estimated using the Wilson-Geankoplis equation. The axial dispersion coefficient and the intra particle diffusivity were determined from the slope and intercept of a plot of H vs $1/u_0$, respectively. The contributions of each mass-transfer step were axial dispersion, fluid-to-particle mass transfer, and intraparticle diffusion.

A Study on the Ritual Dress of Jeung San Kyo (증산교 의례복식에 관한 연구)

  • 임상임;김현경
    • Journal of the Korean Home Economics Association
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    • v.39 no.5
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    • pp.89-105
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    • 2001
  • This study on Jeung San Kyo, one of Korea's new religions, considered the name, kind, form, color and the thoughts of ritual dress which is involved in 15 religious blanches acting currently according to books and the actual research. The following is below. 1 Each names of ritual dresses called rigious branches are Bob Bok(법복), Doh Bok(도복), Yeah Bok(예복) and Jea Bok(제복). 2 In most religious blanches, ritual dress is the Korean cloths which Poh is wear above and Kwan is put on, and the form of Poh(포) is the similar with Durumagi(두루마기), Danryungpoh(단령포), Jungchimak(중치막), Jikryungpoh(직령포) etc, but not the form of Git, Moo and Yiohmim. Kwanmoh is named Chill-Chung-Kwan(칠층관), Yiun-Hwa-Kwan(연화관), Yiun-Kwan(연관), In-Hwa-Kwan(인화관), Tong-Chon-Kwan(통천관) etc. 3. In most religious orders but Dae Suun Jin Li Hueay(대순진리회), Jeung San Doe Jang(증산도장), Colors are used, white, lightblue, and yellow is used in Jeung San Pop Jong Kyo(증산법종교), Dong Doe Pop Jong Gyum Gang Doe(동도법 종금강도). White color means the mind of a people tradition, and light blue expresses an Oriental nation, namely, “Korea”, and is the color representing Jeung San Kyo, and yellow shows the central religion in the future. 4. Jeung San Kyo ceremony fashion reflects the ideologies of the principal role, the Um and Yang-five elements, and, nationalism according to form, color.

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An Introduction to Equine Acupuncture

  • Kim, Min-Su;Jeong, Hyeon-Seok;Lee, Ki-Chang;Choi, Ul-Soo;Park, Jin-Ho;Kim, Nam-Soo
    • Proceedings of the Korean Society of Veterinary Clinics Conference
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    • 2008.10a
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    • pp.171-171
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    • 2008
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A case of cataract surgery using phacoemulsification in a 12-year-old poodle

  • Kang, Myeong-Gon;Han, Dong-Hyun;Han, Sei-Myoung;Jung, Eun-Gyeom;Kim, Gyeong-Min;Cho, Jae-Hyeon;Koh, Phil-Ok;Won, Chung-Kil;Kim, Chung-Hui;Lee, Dongbin
    • Korean Journal of Veterinary Service
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    • v.45 no.3
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    • pp.221-228
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    • 2022
  • Cataracts occur commonly in older dogs, which can lead to partial or complete vision loss. In the present study, a 12-year-old male poodle presented for evaluation of ocular sinister (OS) cataract. This study was a clinical case report on the process of performing surgery using phacoemulsification (PHACO) and the problems that arise in patient diagnosed with OS cataract. In the oculus dexter (OD), the artificial eye was inserted because there was no electroretinography (ERG) response. In the OS, the ERG was 51.6 μV, so operation was performed because the visual pathway function remained. Slit-lamp biomicroscopy of the OS showed complete loss of vision as a hypermature cataract and that the lens was hardened. During the cataract surgery using PHACO, visco-elastic agents were used to maintain the shape of the eyeball, and the PHACO procedure took 3.13 minutes. The hardened lens and visco-elastic agents were removed from the eye through PHACO surgery, and the operation was completed by inserting an intraocular lens (IOL). As a result of managing IOP for 2 months after surgery, it remained stable at a maximum of 19 mmHg, and no postoperative ocular hypertension (POH) occurred. Currently, one year has passed since the operation, and the dog maintains its daily life with its left eye without any problems.

'하르방' 프로젝트: USN 임베디드 시스템 기반의 재난재해 방지 서비스

  • Kim Dae-Yeong;Kim Jae-Eon;Do Thu Thuy;Chong Poh Kit;Yu Seong-Eun;Seong Jong-U;Lopez Tomas Sanchez;Kim Do-Hyeon;Kim Hyeong-Sun
    • Information and Communications Magazine
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    • v.23 no.5
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    • pp.114-126
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    • 2006
  • 본 논문에서는 USN 임베디드 시스템을 활용한 재난재해 방지 서비스의 설계 및 실증 시험내용을 기술한다. '하르방' 프로젝트로 명명된 본 연구에서는 최근 활발하게 연구되고 있는 USN 기술을 한라산 국립공원의 등산로에 적용함으로써, 고정밀의 기상 정보를 실시간으로 제공하고 재난재해 상황 감시 및 상황 발생을 실시간으로 알려 조기에 상황 대응이 가능하도록 하였다. 현재 독자적으로 연구개발이 이루어지고 있는 BcN, IPv6, USN 기술을 하나로 융합한 차세대 유비쿼터스 네트워크의 구조 연구는 향후 관련산업을 선도함은 물로, 실제 응용에서도 범국가적인 정밀하고 광범위한 기상예보와 재난재해 방지 시스템으로서의 역할을 수행할 것으로 예상된다.

Successful ankle replantation in two cases with different presentations

  • Wen, Adzim Poh Yuen;Jusoh, Mohd Hanifah;Saad, Arman Zaharil Mat;Halim, Ahmad Sukari;Faisham, Nu'man Wan Ismail Wan;Azman, Wan Sulaiman Wan
    • Archives of Plastic Surgery
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    • v.47 no.2
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    • pp.182-186
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    • 2020
  • We report our experience of treating two patients with ankle amputation with different presentations. The first case was a clean-cut sharp amputation. The second case was an avulsion injury following a motor vehicle accident in a patient who arrived 8 hours after the injury. Replantation was successful in both cases. In avulsion injuries, a secondary operation for wound coverage is required at a later stage. With good strategy and a support team, encouraging limb survival outcomes are possible post-replantation.

"Spot the differences" Game: An Interactive Method That Engage Students in Organic Chemistry Learning

  • Cha, Jeongho;Kan, Su-Yin;Chia, Poh Wai
    • Journal of the Korean Chemical Society
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    • v.62 no.2
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    • pp.159-165
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    • 2018
  • For the first time, the spot the differences (STD) game was employed in the teaching of basic organic chemistry course. Three sets of paired pictures associated with selected topics in organic chemistry were presented to the students and they were required to spot the differences between the two pictures. Based on the students' pre and post self-assessment, the STD game resulted in several positive learning outcomes as indicated in the students' reflective writing, including knowledge recall, deeper understanding of a subject, enhanced analytical skill, motivation and fun-filled learning, learning from peers and self-empowerment in learning. The STD game is a desirable teaching and learning tool, as learning in an entertaining and interactive way is highly sought after in today's classroom, especially to novice students. In the future, the STD game can be modified and implemented to cater the needs of different courses and topics.

A Case Study on Using Uncritical Inference Test to Promote Malaysian College Students' Deeper Thinking in Organic Chemistry

  • Kan, Su-Yin;Cha, Jeongho;Chia, Poh Wai
    • Journal of the Korean Chemical Society
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    • v.59 no.2
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    • pp.156-163
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    • 2015
  • In Malaysia, the students' poor performance in mathematics and sciences needs immediate attention and remedies. In order to tackle this problem, an active learning environment that encourages students' question-asking capability must be molded. Transformation from traditional teacher-based approach to active-learning classroom is the key to develop question-asking capability. The classroom activity that the authors used in this study is based on the uncritical inference test to promote students' deeper thinking which encouraged students to verify facts that was previously learnt in classroom through group discussion activity. Three sets of uncritical inference test were developed and applied to Malaysian college course of basic organic chemistry. Students' answers to the impact of using uncritical inference test with a group discussion on learning and communication skills were positive.

An Improved Protocol on the Synthesis of Thiazolo[3,2-a]pyrimidine Using Ultrasonic Probe Irradiation

  • Tan, Sian Hui;Chuah, Tse Seng;Chia, Poh Wai
    • Journal of the Korean Chemical Society
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    • v.60 no.4
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    • pp.245-250
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    • 2016
  • An improved protocol on the synthesis of thiazolo[3,2-a]pyrimidine-6-carboxylate derivatives are reported. Previously, the thiazolo[3,2-a]pyrimidine-6-carboxylate derivatives were prepared in a two-step procedure. Under the improved procedure, the thiazolo[3,2-a]pyrimidine-6-carboxylate derivatives was readily prepared in a one-step reaction. This procedure was found to be more efficient than the previous protocol and also compared to the ultrasound bath and conventional heating methods in terms of yield and reaction time.