• 센서학회지
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• 제30권6호
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• pp.384-387
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• 2021

Cyclic voltammetry (CV) is a powerful electrochemical measurement technique that can determine redoxable substances in a solution. The advantage of CV is that we can observe redox behavior over a wide potential range in a short time. Because of its practicality and versatility, CV is used not only in electrochemistry but also in various fields of chemistry, such as inorganic chemistry, organic chemistry, and biochemistry. As technology advances and the popularity of CV grows, the need for trained electrochemists also increases. However, most students do not receive formal training in these technologies as part of their curriculum. There are few concise and accessible resources for learning CV. Therefore, this manuscript provides a brief introduction to cyclic voltammetry to aid readers in collecting and interpreting useful data from cyclic voltammograms.

• 한국전자통신학회논문지
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• 제17권6호
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• pp.1193-1198
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• 2022

현대 사회의 급속한 발전으로 무인 처리 시스템이 사회적으로 대두됨에 따라 OpenCV를 이용하여 영상이나 이미지를 자동으로 분석 및 처리하여 의미 있는 결과물을 도출해내고 사회가 요구하는 역량을 기르기 위해서 라즈베리 파이 4를 이용한 얼굴인식 출결 관리 시스템에 대한 필요성이 대두되었다. 라즈베리 파이 4를 기반으로 Python3를 사용하여 소프트웨어를 설계하고, 오픈소스인 OpenCV, Haar cascade와 Kakao API, 구글 드라이브 등의 기술들을 사용하여 얼굴등록, 얼굴인식을 통한 손쉬운 출석 체크로 Kakao API를 통해 실시간으로 사용자와 통신할 수 있고 출석 확인 및 수정을 편리하게 할 수 있는 얼굴인식 출결관리 시스템을 연구하였다.

• Korean Journal of Acupuncture
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• 제36권3호
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• pp.150-161
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• 2019

Objectives : The authors aimed at contributing to the safety of acupuncture in the clinic by analyzing the information of contraindicated acupoints described in Uihakipmun. Methods : We investigated the contents related acupuncture contraindications in Uihakipmun, categorized the contraindicated acupoints by site and identified whether they can cause adverse events from the anatomical point of view. Results : In Uihakipmun, 49 acupoints - BL6, BL8, BL9, ST1, SI18, BL1, BL2, TE18, TE19, TE20, GB1, GB3, GV22, GV24, ST12, ST9, TE16, GV6, BL15, BL30, CV17, LU2, GB22, SP16, CV8, CV9, CV15, KI11, ST30, SP11, BL56, GB32, GB33, GB42, LI13, HT2, TE8, GV17, GB18, EX-HN11, GB21, GV11, GV10, ST17, CV5, CV1, ST42, SP6, LI4 - were described as contraindicated acupoints. Among them, the contraindications induced by acupuncture treatment were described for just 5 acupoints. Anatomically, acupuncture stimulation at the contraindicated acupoints can cause organ, nerve or vessel damage near the acupoints. And the number of contraindicated acupoints in Uihakipmun was increased compared to those in Hwangjenaegyeong, Chimgugabeulgyeong, Bigeupcheongeumyobang, Donginsuhyeolchimgudogyeong and Chimgujasaenggyeong. Conclusions : In Ming dynasty, the knowledge associated with adverse events on acupuncture was increased by the accumulation of medical knowledge. Acupuncture stimulation at the contraindicated acupoints described in Uihakipmun can cause tissue damage, therefore we should perform acupuncture procedure carefully to avoid adverse events when stimulating the contraindicated acupoints.

• 생물환경조절학회지
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• 제8권1호
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• pp.19-29
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• 1999

무등산수박과 달고나수박을 관비재배 및 양액재배에 대하여 비교 실험한 결과, 엽수는 달고나수박이 많은 반면 엽면적은 무등산수박이 높게 나타났고, 생체중 및 건물중에 있어서도 무등산수박이 달고나수박 보다 더 높게 나타났다. 엽수, 엽면적, 줄기당 생체중 및 건물중 등은 양액재배에서 더 양호한 생장을 나타내었다. 재배방식에 관계없이 당도는 달고나 수박이 무등산수박보다 훨씬 더 높은 반면 과실무게는 무등산수박이 더 높게 나타났다. 수박의 엽병내 질소함량은 정식후 15일에는 11.4∼13.4mg/gFW, 과실비대기에는 17.1∼20.6mg/gFW, 정도로 상승하였다. 인산은 생육초기 3.7∼5.7mg/gFW 정도에서 수확기에 이르면 0.6∼l.1mg/gFW 정도로 감소하였다. 칼리는 생육초기에 5.8∼6.6mg/gFW 정도였으나 수분기부터는 4.0∼4.8mg/gFW 범위로 흡수되었다. 칼슘의 흡수는 생육초기에는 양액재배 수박이 3.4∼4.1mg/gFW 범위로 관비재배 수박의 2.5∼3.5mg/gFW 범위보다 약간 많은 것으로 나타났지만 생육이 진전됨에 따라 관비재배 수박의 흡수량이 양액재배 수박의 흡수량보다 많아지는 경향이었다. 마그네슘의 흡수는 생육초기에 관비재배에서 훨씬 더 용이하게 흡수되는 경향이었으나 수분기 부터는 0.9∼l.3mg/gFW 범위로 일정하였다. 본 실험결과 무등산수박의 양액재배를 통한 품질향상 및 주년재배의 가능성이 인정되었다.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2019년도 전력전자학술대회
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• pp.142-144
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• 2019

Nowadays, multi-MHz wireless power transfer (WPT) system has received a great concern of study due to its desirable characteristics such as user convenience, system compact and better safety as compared to the conventional DC-DC with cord. This paper presents a solution for WPT Lithium Batteries charger with Constant Current (CC) and Constant Voltage (CV) charging process. The proposed system consists of a high frequency class D power amplifier, a pair of PCB coil, transformable high-order resonant network and a full-bridge rectifier. The charger can be implemented CC /CV charging profile thanks to automatic reconfigurable resonant compensator. Therefore, the battery can be fully charged without the help of an additional DC/DC converter. The simulation and 50W-6.78-MHz hardware experimental results are presented to verify the feasibility of the proposed method and to evaluate the performance of the proposed wireless battery charger.

• 혜화의학회지
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• 제10권1호
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• pp.471-482
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• 2001

Infantile Convulsion, one of common emergency symptoms in pediatrics, arises from sudden derangement of the central nerve system, and can cause a sudden loss of consciousness and spasm. It falls into three categories: Acute Infantile Convulsion, Chronic Infantile Convulsion and Chronic Spleen Convulsion. According to research, approximately 6~7% of all babies undergo spasm more than once. Since the treatment must be done immediately, acupuncture & moxibustion treatment can be one of the most important treatments in this Particular case. Therefore, the focus of this study is on how acupuncture & moxibustion can be utilized in the treatment of Infantile Convulsion, and the literary findings are as follows: 1. The meridian points used on acute infantile convulsion are Sugu(GV26), T'aech'ung(Liv3), Hapkok(LI4). 2. The meridians used on acute infantile convulsion are Governor Vessel(GV), Bladder Meridian(BL), Stomach Meridian(ST). 3. The meridian points used on accompanied symptoms with acute infantile convulsion are Haenggan(Liv2), Yangnungch'on(Liv3) on spasm, Paek'oe(GV14) on opisthotonus, Kokchi(LI11), Taech'u(GV14) on fever, Nogung(P8), Yongch'on(K1) on fainting spell, Chok-samri(S36) on body weakness. 4. The meridian points used on chronic infantile convulsion are Shinguol(CV8), Ch'onchj'u(S25), T'aech'ung(Liv3), Kwanwon(CV4), Ch'ukt'aek(L5). 5. The meridians used on chronic infantile convulsion are Conception Vessel(CV), Governor Vessel(GV), Stomach Meridian(ST). 6. The meridian points used on accompanied symptoms with chronic infantile convulsion are Ch'onchj'u(S25), Kolli(CV11) on diarrhea, Taenung(P7), Shinmun(H7) on fainting spell, Kansu(B18), T'aech'ung(Liv3) on spasm. 7. The meridian Points and meridians are Paek'oe(GV14), Sangsung(GV23), Sugu(GV26) of Governor Vessel(GV) and Choiyung(CV16), Shinguol(CV16) of Conception Vessel(CV) and Taedon(Liv1), Changmun(Liv13).

• 한국음향학회지
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• 제17권2호
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• pp.3-10
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• 1998

본 논문에서는 음소단위 PSOLA 한국어 합성을 LSP line의 조절과 자모음 분석을 통해서 실시하였다. 음성합성에서 많이 사용하는 triphone, diphone, demisyllable등과 같은 합성단위들은 자연스러운 합성음을 위해 다양한 음운환경에서 수집된다. 그러나, 이런 방법 은 많은 시간과 메모리가 요구된다. 본 논문에서는 합성단위로서 자음17개, 모음 16개로 총 33개의 음소를 이용하였다. 자음은 후위모음/이/인 CV에서 segment되고, 모음은 단음절의 단모음과 이중모음을 1인의 화자로부터 합성데이터를 수집하였다. 또한, 10명의 화자가 발성 한 CV에서 각 모음에 따라 변하는 자음의 주파수를 분석하였고, CV+VC 또는 CV+CV에서 각 자음에 따라 변하는 모음의 포먼트변화를 분석하였다. 분석결과를 토대로 모음은 LSP line을 조절해서 PSOLA합성을 하고, 자음은 합성하려는 모음과 결합하였다. 그 결과 6개의 합성단어에 대한 청취율은 65%를 보였다.

• Journal of Acupuncture Research
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• 제29권2호
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• pp.59-71
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• 2012

Objectives : The purpose of this study was to examine the effects of the Astragali radix Pharmacopuncture on improvement of senile osteoporosis (Type 2) in SAM P6. Methods : At 10 weeks after birth, Astragali radix Pharmacopunctures were given 100mL, 200mL/kg/day, i.p. 3times a week for 4 weeks at $CV_{12}$ in SAM P6 mice. We measured complete blood cells (CBC) such as RBC, HGB, Hct, PLT, MPB and MCHC. And we analyzed the plasma concentrations of blood urea nitrogen, creatinine, inorganic phosphate and total iron. In addition, we tested bone mineral density (BMD) using the soft X-ray. Results : The results were as follows. 1. At $CV_{12}$ in SAM P6, treatments of Astragali radix Pharmacopuncture were showed a trend of increase in bone mineral density (BMD) of the vertebrae lumbales, femurand tibia in P6 mice. 2. At $CV_{12}$ in SAM P6, treatment of Astragali radix Pharmacopuncture increased in RBC, HB, HCT and PLT, in comparison with control group. It was also found that the inorganic phosphate levels increased in the treatment on groups of the Astragali radix Pharmacopuncture from that of the control group, but blood urea nitrogen was no significant. Conclusions : These results are suggested that at $CV_{12}$ the Astragali radix Pharmacopuncture help on improvement of osteoporosis in SAMs.

• Journal of Ginseng Research
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• 제33권2호
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• pp.127-131
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• 2009

시판되고 있는 인삼재배용 미생물제제에 대하여 인삼묘 입고병억제효과를 유묘포트시험으로 검정하였다. Rhizoctonia solani에 대하여는 리조렉스 (tolclofos-methyl)와 바리문 (validamycin-A)을 비교하여 검정하고 Pythium에는 리도밀 (metalaxyl)을 비교하였다. 리조렉스와 비교한 시험에서만 처리간 평균보호율 (Pm)의 차이에 유의성이 있었다. 최고효과를 보이는 미생물제 C-ISR2 Rhizoctonia solani에 대한 두 개의 시험에서 순보호율 (net Pm-total Pm-control Pm)이 33%와 33.6%였다. 대조구의 Pm이 58.6%인 경우 총보호율이 91.6%로, 환경조건이 좋은 포장에서는 미생물제로만 보호가 가능함을 나타낸다. C-ISR2의 Pythium에 대한 순 Pm은 26.4%였다. 한 병원균에 대한 미생물제의 순보호율은 일정한 것으로 보였다. Pm과 CV간에는 세 번 다 부의 직선상관관계를 부였다. 이는 미생물제나 화학약제가 모두 보호체계가 같으며 미생물제제가 미세환경에 예민하여 변이가 커지는 것으로 보인다. 미생물제와 대조구의 Pm과 CV의 상관식에서 CV=0에서의 절편 값은 미생물제의 이론적 최대보호율이 된다. 기본 발병환경의 개선 (무처리구의 보호율증대)에 따라 기존 미생물제제로 화학농약을 대체할 수 있다.

• Korean Journal of Acupuncture
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• 제28권1호
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• pp.91-100
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• 2011

Objectives : To classify needling or moxibustion-prohibited acupoints in Emergency Formulas Worth a Thousand in Gold (EFWTG) and Supplement to the Formulas Worth a Thousand in Gold (SFWTG). Methods : We found needling or moxibustion-prohibited acupoints in EFWTG and SFWTG, then investigated the influences of needling or moxibustion-prohibited acupoints on A-B Classic of Acupuncture and Moxibustion. Results : In EFWTG, the needling-prohibited points were LI13, ST17, BL56, TE8, CV8, CV15 and GV24. Acupoints needed careful needling were LU2, ST12, KI2, KI7, TE19, GB3 and jwagak. The moxibustion-prohibited points were LU3, LU8, ST1, ST8, ST9, ST17, ST32, ST33, BL6, BL30, TE18, TE23, GB33, GB42, CV5, CV15, GV6, GV15, GV16 and GV17. Acupoints needed careful moxibustion were ST7, ST30, TE21 and GB22. In SFWTG, the needling-prohibited points were LU2, LI13, ST12, ST17, ST32, BL56, KI2, KI7, TE8, TE19, GB3, CV8, CV15, GV24 and jwagak. The moxibustion-prohibited points were LU3, LU8, ST1, ST7, ST8, ST9, ST17, ST30, ST32, ST33, BL6, BL30, TE18, TE23, GB22, GB33, GB42, CV5, CV15, GV6, GV15, GV16, GV17 and ijung. Conclusions : There were 7 needling-prohibited points, 7 acupoints needed careful needling, 20 moxibustion-prohibited points, and 4 acupoints needed careful needling in EFWTG, and 15 needling-prohibited points and 24 moxibustion-prohibited points in SFWTG. The needling or moxibustion-prohibited acupoints in A-B Classic of Acupuncture and Moxibustion had a strong influence on those in the two literatures.