• 한국대기환경학회지
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• 제33권3호
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• pp.251-264
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• 2017

Recently, Jeollabuk-do has been reported as a province where the $PM_{10}$concentration is one of the highest levels in South Korea. To explore the characteristics and origins of the $PM_{10}$in Jeollabuk-do, we present one of the first long-term datasets including a statistical analysis of $PM_{10}$concentrations obtained from six cities in the province from 2010 to 2015. During the entire periods, the mean hourly $PM_{10}$concentration was $49.3{\mu}g/m^3$, which correspond to the annual ambient air quality standards for $PM_{10}$in South Korea, and the annual $PM_{10}$concentration of each city showed a similarity in year-to-year variations. In the monthly variation of $PM_{10}$, the $PM_{10}$concentrations showed a maximum value in May that was one of the top levels among the provinces of Korea while the concentrations were dramatically decreased in August showing one of the lowest levels among the provinces in Korea. For the diurnal variation of $PM_{10}$, the $PM_{10}$concentration was enhanced during the rush hours together with gaseous species of $NO_2$, and CO. When the high concentrations of $PM_{10}$were observed (the highest 10% of the $PM_{10}$mass contribution), temperature and relative humidity were low. Using HYSPLIT backward trajectories and cluster analysis for the high $PM_{10}$concentrations, we found that the pollution plumes were transported mainly from China.

• Asian Journal of Atmospheric Environment
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• 제11권4호
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• pp.313-321
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• 2017

$PM_{10}$ and $PM_{2.5}$ were collected at the Gosan Site on Jeju Island from 2013 to 2015, and their ionic and elemental species were analyzed to examine the variations in their chemical compositional characteristics related to different meteorological conditions. Concentrations of nss-$SO_4{^{2-}}$ and $NH_4{^+}$ were respectively 6.5 and 4.7 times higher in the fine particle mode ($PM_{2.5}$) compared to the coarse particle mode ($PM_{10-2.5}$), however $NO_3{^-}$ concentrations were 2.4 times higher in the coarse mode compared to the fine particle mode. During Asian dust days, the concentrations of nss-$Ca^{2+}$ and $NO_3{^-}$ increased to 8.2 and 5.0 times higher in $PM_{10}$, and 3.5 and 6.0 times higher in $PM_{2.5}$, respectively. During haze days, the concentrations of secondary pollutants increased by 3.1-4.7 and 3.2-7.9 in $PM_{10}$ and $PM_{2.5}$, respectively, and they were, respectively, 1.2-2.1 and 0.9-2.1 times higher on mist days. The aerosols were acidified largely by sulfuric and nitric acids, and neutralized mainly by ammonia in the fine particle mode during the haze days, but neutralized by calcium carbonate in coarse particle mode during the Asian dust days. Clustered back trajectory analysis showed that concentrations of nss-$SO_4{^{2-}}$, $NO_3{^-}$, and $NH_4{^+}$ were relatively high when air masses travelled from China.

• 한국수산과학회지
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• 제45권1호
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• pp.17-24
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• 2012

We cloned and sequenced the cDNA encoding the $FSH{\beta}$ and $LH{\beta}$ subunits from the pituitary of the blacktip grouper Epinephelus fasciatus, which regulate vitellogenesis and maturation in vertebrates, to achieve stable and healthy gametes. The full-length cDNAs of $FSH{\beta}$ and $LH{\beta}$ were 571 bp and 617 bp, encoding 120 amino acid (aa) and 147 aa proteins, respectively. The deduced amino acid sequences of $FSH{\beta}$ and $LH{\beta}$ were highly homologous (68-97%) to those of other Perciformes; E. bruneus, Dicentrarchus labrax, Thunnus thynnus, and Pseudolabrus sieboldi. Phylogenetic analysis showed that the deduced $FSH{\beta}$ and $LH{\beta}$ amino acid sequences were categorized as a distinct subunit in the $GTH{\beta}$ family, and are closely related to the teleostei $FSH{\beta}$ and $LH{\beta}$, respectively. $FSH{\beta}$ and $LH{\beta}$ mRNA exhibited high abundance in the pituitary gland and low in other brain areas, but were not present in peripheral tissues, as determined by RT-PCR.

• Smart Structures and Systems
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• 제16권2호
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• pp.281-294
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• 2015

Bolted joint connection is the most commonly used connection element in structures and devices. The loosening due to external dynamic loads cannot be observed and measured easily and may cause catastrophic loss especially in an extreme requirement and/or environment. In this paper, an innovative Real-time Cross-Correlation Method (RCCM) for monitoring of the bolted joint loosening was proposed. We apply time reversal process on stress wave propagation to obtain correlation signal. The correlation signal's peak amplitude represents the cross-correlation between the loosening state and the baseline working state; therefore, it can detect the state of loosening. Since the bolt states are uncorrelated with noise, the peak amplitude will not be affected by noise and disturbance while it increases SNR level and increases the measured signals' reliability. The correlation process is carried out online through physical wave propagation without any other post offline complicated analyses and calculations. We implemented the proposed RCCM on a single bolt/nut joint experimental device to quantitatively detect the loosening states successfully. After that we implemented the proposed method on a real large structure (reaction wall) with multiple bolted joint connections. Loosening indexes were built for both experiments to indicate the loosening states. Finally, we demonstrated the proposed method's great anti-noise and/or disturbance ability. In the instrumentation, we simply mounted Lead Zirconium Titanate (PZT) patches on the device/structure surface without any modifications of the bolted connection. The low-cost PZTs used as actuators and sensors for active sensing are easily extended to a sensing network for large scale bolted joint network monitoring.

• 사상체질의학회지
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• 제19권3호
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• pp.20-29
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• 2007

1. Objectives We know that the origine of the pe-tsai is from 백채(白菜; pronounced as bak-tsai, meaning white vegetable). But some literatures said that the japanese butterbur(Petasites japonicus (Sieb. et Zucc.) Maxim) is from 백채(白菜;: pronounced as bak-tsai), too. These two words have same origin. It makes us get into a mess. So We are about to study the origine of the pe-tsai more. Also, we investigated its historical origin, properties and Sasang constitutional medicine's efficacy. 2. Methods We reviewed farmings(e.g. 山林經濟, 林園經濟法), dictionarys(e.g. 訓蒙字會), encyclopedia(e.g. 物名攷), books on herbs and medicines to summarize literatures about the pe-tsai. 3. Results and Conclusions (1) The origin of term, pe-tsai is sung, named after a pine tree(松), chineses character pronounced as song) which we can see throughout a year. Also, pe-tsai was called white vegetables(白菜, pronounced as bak-tsai) because its appearance is green and white. Therefore, the pronounciation of sung derives from its character and we also say bak-tsai(白菜), which came from its looks. (2) Today we pronounce pe-tsai inro bae-tsu(배추) in korean. There are pronunciational developments of this word : bak-tsai(白菜) $\to$ bae-tsae $\to$ bae-tsa $\to$ bae-tsa $\to$ bae-tsae(배채) $\to$ bae-tsu(배추). (3) Our ancestor used bak-tsai(白菜) as the name of japenese butterbur, which was different from China. The latter times of Joseon(조선), however, sometimes bak-tsai(白菜) meant pe-tsai. After the year of 1800, bak-tsai(白菜) only meant pe-tsai. So when we try to translate our ancestor's books, we must examine carefully their published year. (4) Pe-tsai is used for baby's erysipelas, boil, fever in the chest, thirst after alcohol drinking and kind of diabetes. It helps digestive organs as well. Pe-tsai is used for stress, fever in the chest and cough with fever of Soyangin and Tayangin in Sasang Constitutional Medicine.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2018년도 추계학술대회
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• pp.129-129
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• 2018

중국(中國) 장홍화(藏紅花)는 크로신과 카르티노이드,안토시아닌등의 성분함량으로 혈관질환 예방과 항암작용, 두뇌의 신경안정, 호르몬분비 및 학습증진에 효과가 있는 것으로 알려져 있다. 이러한 장홍화는 중국의 고원지대에서 자생하는 것으로 생산량이 적어서 고가에 판매되고 있다. 비타민 C가 레몬보다 10배나 많이 함유되어 있는 중국유(中國柚)는 과피가 일반 감귤류 보다 10배 이상 두꺼워 비타민P가 다량으로 함유되어 있다. 즉, 유기산, 비타민P와 비타민C가 매우 많이 함유되어 있어서 예로부터 중국에서는 감기와, 피부노화, 피로를 방지하는데 사용되어져 왔다. 그밖에 비타민B군과 당질, 단백질등이 다른 감귤류 품종보다 많고, 모세혈관을 보호하는 헤스페리딘(비타민P)이 다량으로 함유되어 있어서 심혈관 질환 장애와 뇌졸증, 뇌출혈 등을 억제하는 효과를 가지고 있다. 또한 몸 안에 쌓여 있는 노폐물 등을 밖으로 배출시켜주는 효과가 양호하여 피부미용에 효과가 있는 것으로 알려져 있다. 본 실험에서는 중국장홍화(中國藏紅花)와 유(柚)의 혼합추출액 의 항산화활성과 총폴리페놀 함량을 조사하였던 바, 중국(中國) 장홍화(藏紅花)의 경우 폴리페놀 함량이 높게 나타났으며, 매우 양호한 항산화 효능을 나타내었다. 중국유(中國柚)의 경우도 과피에서 폴리페놀 함량이 높게 나타났으며 항산화 활성도 과피에서 매우 양호한 결과를 나타내었다. 중국(中國) 장홍화(藏紅花)와 중국유(中國柚)의 혼함추출액에서의 항산화 효과가 더 양호한 반응을 나타내었다. 이러한 결과들로 미루어볼 때 중국장홍화(中國藏紅花)와 유(柚)의 항산화 활성은 천연화장품의 신소재로서의 가치를 가지고 있다고 판단된다.

• 대한한의학원전학회지
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• 제24권2호
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• pp.51-64
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• 2011

Gyeongoggo is first described in the Collected Prescription by Hong Family in the Song Dynasty in China. It is composed of Radix Rehmnniae, Panax ginseng, Poria cocos, and Mel. Its main efficacy is to treat weakness of primordial essence of body and dry cough, and to invigorate qi and replenish yin principle. It is one of the most important prescriptions that people have been using for a long time. We studied the documents recorded in the medical classics and comprehended the following results. Gyeongoggo has efficacy to keep a person healthy and live long age, to treat amnesia and dizziness from brain weakness, to strengthen muscle and bone by improving function of stomach and colon, to improve a person's memory and judgement, to invigorate brain weakness, and, to treat tuberculosis and lung cancer. The longer a person take it, the better it is for one's health and meditation. When it is made, it is important to mix four components up, to boil it with an oak tree for three days and nights, and then to add water from a well to reduce heat for a full day, and to boil up again for a full day to mature fully. As gyeongoggo is acquired not only by the full heart of a manufacturer but also the sympathy of nature, it is important to choose a clean place to make and keep. When it is taken, it is proper to take it with warm water or liquors. And when it is made, we came to know that it is possible to make gyeongoggo with special efficacy by adding one to three more components.

• 대한한의학원전학회지
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• 제23권5호
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• pp.23-34
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• 2010

Contemporary topic of the culture is turning to the Nature. In this situation, The Paradigms of realization about Human body and medical science are changing. The new interpretation of the value of Health is another method of recovering the Nature. Oriental medicine has mainly dealt with health preserving idealogy in origin, and pursued it. Get out of the curing medicine, the health preserving idealogy which aims to live up to one's lifespan has been becoming the main idea of Oriental medicine. In this respect, we can extract insperation from the concept of Meebyung and preventive treatments which came from the ideas of preventive medicine in Oriental medicine. Among the researches of Meebyung in Oriental medical classics and in Oriental tri-countries, we grasped and analyzed the trends of them. In connection with the most fundamental project in Meebyung study which is to set up the concept of Meebyung, we inspected the standards which can categorize and diagnose Meebyung. In contrast with 'Ibyeong', Meebyung in Oriental medical classics can be attained from living in harmony with the Nature, four seasons, Eum-and-Yang and the Five Phases. However the classification of Meebyung, Yogbyeong, Ibyeong in medical classics made foundation of post preventive medicine. From the various studies we can find as follws. Promting national project in Meebyung, China is trying to reestablish classifications of Meebyung, as Japanese Meebyung scholars are focusing on quantitative methods. Although there are not enough research products, Korea must absorb the products of such other countries, as to categorize Meebyung through the pattern identification system of Oriental medicine, and achieve our goal of promotion of health.

• Journal of Acupuncture Research
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• 제37권4호
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• pp.209-223
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• 2020

The purpose of this study was to evaluate the effectiveness of acupuncture treatment for the symptoms of Alzheimer's disease (AD). There were 11 databases searched for randomized controlled trials using acupuncture treatment for AD. The risk-of-bias assessment tool of the Cochrane Library was used to evaluate the quality of each study. Using the Review Manager (RevMan), a meta-analysis was performed using risk ratio, mean difference, 95% confidence interval, and random effect model. There were 32 studies selected, all of which were conducted in China. There were 16 studies where acupuncture was used as the intervention, and 23 studies used Donepezil as the control group. Acupoint GV20 was most frequently selected during the treatment. The Mini Mental State Examination (MMSE) was the most frequently used outcome variable. A period of 12 weeks was the most common treatment duration. As a result of meta-analysis (n = 25), acupuncture improved the MMSE and activities of daily living scores. Electroacupuncture improved the Alzheimer Disease Assessment Scale-Cognitive Subscale, and scalp acupuncture improved the MMSE score for AD. Acupuncture alleviates the symptoms of AD. However, further research is necessary to provide a better level of evidence.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2005년도 춘계학술대회 논문집
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• pp.369-375
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• 2005

중국 경제의 급성장으로 인한 전세계 물동량의 동북아시아로의 집중현상은 부산항을 포함한 지역 내 항만들의 경쟁을 점차 심각해지게 하고 있다. 이에 동북아시아 항만들은 생산성과 더불어 항만의 서비스를 극대화하고자 하는 노력을 기울이고 있으며 항만이 제공하여야 할 서비스 중 가장 중요하게 부각되고 있는 항만물류정보 시스템 구축 및 효율적 운영에 총력을 기울이고 있는 실정이다. 그러나 부산항이 경우, 이미 항만물류 정보시스템은 구축이 되어 있으나 보안 및 인증문제 등으로 인해 아직 활성화 되지 못하였다. 이에 본 연구에서는 부산항 항만물류산업에서 EDI의 활용도를 높이기 위한 전체적인 연구모형 도출과 항만물류업체를 업종별, 집단별로 구분하여 차별화된 활성화 모형을 도출하는 것을 목적으로 하고 있다.