• 천문학회지
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• 제47권3호
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• pp.115-122
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• 2014

The New Vacuum Solar Telescope (NVST) is a 1-meter vacuum solar telescope that aims to observe the fine structures of active regions on the Sun. The main tasks of the NVST are high resolution imaging and spectral observations, including the measurements of the solar magnetic field. The NVST has been collecting more than 20 million FITS files since it began routine observations in 2012 and produces maximum observational records of 120 thousand files in a day. Given the large amount of files, the effective archiving and retrieval of files becomes a critical and urgent problem. In this study, we implement a new data archiving system for the NVST based on the Fastbit Not Only Structured Query Language (NoSQL) database. Comparing to the relational database (i.e., MySQL; My Structured Query Language), the Fastbit database manifests distinctive advantages on indexing and querying performance. In a large scale database of 40 million records, the multi-field combined query response time of Fastbit database is about 15 times faster and fully meets the requirements of the NVST. Our slestudy brings a new idea for massive astronomical data archiving and would contribute to the design of data management systems for other astronomical telescopes.

• Journal of Acupuncture Research
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• 제28권5호
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• pp.65-76
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• 2011

Objectives : Study about needle retaining time. Methods : We reviewed the ancient and the present text of China with using the China academic journal(CAJ) of China national knowledge infrastructure(CNKI) Results & Conclusions : 1. Needle retaining time is important in acupuncture, because the therapy effect is influenced by it. 2. The time of needle retaining is up to those conditions like different disease, viscera and bowels(臟腑), meridian and collateral(經絡), obtaining Qi(得氣), seasons, constitution of the patients and acupuncture tools. In ${\ll}$Hwangdineijing(黃帝內經) ${\gg}$, needle retaining time is called by 'Zhiruzhichu(直入直出)', 'Jichu(疾出)', 'Liu(留)', 'Buliu(不留)', 'Jiuliu(久留)' and 'Liu ${\bigcirc}$ hu(留${\bigcirc}$呼)', and the time was shorter than nowadays. 3. The respiration number was counted to check needle retaining time but we can't find out any evidence. Recently in China, 'obtaining Qi(得氣)' and 'Qi arrival(氣至)' is used to check it. 4. Looking into clinical researches, different diseases need different needle retaining time. For example, 20~30min is appropriate time for musculoskeletal system. 60min is for circulatory system, 10~20min is for peripheral facial nerve paralysis. Insomnia and some stubborn diseases need longer time. Cold and heat(寒熱), deficiency and excess(虛實) are always influences the needle retaining as well. 5. It is important to figure out the most effective needle retaining time for different disease with the base of connection between needle retaining time and effect.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.314-316
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• 2006

In this paper, the plastic organic thin-film transistors (OTFTs) with $32{\ast}32$ array are presented. Flexible organic light emitting diodes (OLEDs) operated by OTFTs are fabricated with a novel lamination method and the results are also presented. OTFT pixels defined by photolithography, and pentacene deposited by thermal evaporation. Fabrication method and the performances of green PHOLEDs with high efficiency, stability, and electrical performance are discussed.

• 가정과삶의질연구
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• 제24권4호
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• pp.25-36
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• 2006

The purpose of this study is to investigate the parenting stress, efficacy, and behaviors of Korean and Yanbian Korean-Chinese grandfamilies in which grandparents have sole responsibility for raising their grandchildren. Our sample consists of 74 grandparents and their grandchildren (43 Korean and 31 Yanbian Korean-Chinese). The data were analyzed through crosstabs analysis, 1-test, Pearson's correlation, and stepwise regression analysis. The results of this study indicate that there are some differences based on the gender of grandparents, educational level, the reason for taking care of the grandchildren, and the grandparents' relationship with grandchildren between two ethnic groups. The results also show that parenting stress is higher for Korean grandparents' and parenting efficacy is lower than Yanbian Korean-Chinese. Also, Yanbian Korean-Chinese grandparents are higher in warmth and acceptance and lower in rejected and controlled parenting behaviors than Korean grandparents. There are strong relationships between parenting stress and parenting efficacy and between parenting behaviors and parenting stress and parenting efficacy for Korean grandparents, but not for Yanbian Korean-Chinese.

• 한국전자파학회논문지
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• 제17권1호
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• pp.24-38
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• 2006

본 논문에서는 인공위성의 원격 측정, 명령 및 제어(TT&C)용에 적합한 원뿔 나선 안테나의 설계 및 제작에 관해 검토하였다. $2.0{\sim}2.3\;GHz$ 대역에서 동작하며 반구면상에서 양호한 이득 특성과 축비 특성을 가지도록 나선의 형상을 상용 전자장 소프트웨어를 이용하여 최적 설계하였다. 원뿐 나선의 급전을 위한 동축선 무한 벌룬은 실험적인 방법으로 구현하였다. 설계된 나선의 형상을 정밀하게 제작하는 방법을 제시하였다. 설계한 안테나를 제작하여 측정한 결과 $2.0{\sim}2.3\;GHz$ 대역에서 -18 dB 이하의 반사 계수, 4 dB 이상의 이득, 이득이 0 dB 이상인 각도가 안테나 축으로부터 ${\pm}75^{\circ}$, 축비가 5 dB 이하인 각도가 안테나 축으로부터 ${\pm}90^{\circ}$, 15 dB 이상의 전후 방비 등 양호한 특성을 얻었다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권15호
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• pp.6255-6259
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• 2015

Purpose: To evaluate the prognostic value of alkaline phosphatase (ALP) and gamma-glutamyltransferase (GGT) in gallbladder cancer (GBC). Materials and Methods: Serum ALP and GGT levels and clinicopathological parameters were retrospectively evaluated in 199 GBC patients. Receiver operating characteristic (ROC) curve analysis was performed to determine the cut-off values of ALP and GGT. Then, associations with overall survival were assessed by multivariate analysis. Based on the significant factors, a prognostic score model was established. Results: By ROC curve analysis, $ALP{\geq}210U/L$ and $GGT{\geq}43U/L$ were considered elevated. Overall survival for patients with elevated ALP and GGT was significantly worse than for patients within the normal range. Multivariate analysis showed that the elevated ALP, GGT and tumor stage were independent prognostic factors. Giving each positive factor a score of 1, we established a preoperative prognostic score model. Varied outcomes would be significantly distinguished by the different score groups. By further ROC curve analysis, the simple score showed great superiority compared with the widely used TNM staging, each of the ALP or GGT alone, or traditional tumor markers such as CEA, AFP, CA125 and CA199. Conclusions: Elevated ALP and GGT levels were risk predictors in GBC patients. Our prognostic model provides infomration on varied outcomes of patients from different score groups.

• Asian Pacific Journal of Cancer Prevention
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• 제15권4호
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• pp.1597-1602
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• 2014

The purpose of this study was to investigate whether whole-liver radiotherapy plus a tumor-boost dose with concurrent chemotherapy is beneficial for colorectal cancer patients with massive and multiple liver metastases. From January 2007 to December 2012, 19 patients who exhibited massive (with a longest diameter > 5 cm) and invasive liver metastases and multiple metastases were treated with radiotherapy and concurrent chemotherapy. The total radiation dose was 53.4 Gy (range 38.8 Gy-66.3 Gy). All of the patients received a continuous intravenous dose of 5 fluorouracil (5-FU) 225 mg/m2 concurrently with radiation. The median survival time was 19 months. The 1- and 2- year overall survival rates were 78.3% and 14.3%, respectively. Of all of the patients who presented with abdominal pain, 100% experienced a decrease in pain. Decreases in the rates of ascites and jaundice were confirmed by ultrasound and bilirubin levels. No cases of Grade 4 or 5 acute or late toxicity were recorded. There were only two cases of Grade 3 toxicity (elevated bilirubin). These data provide evidence that whole-liver radiotherapy plus a tumor-boost dose with concurrent chemotherapy is beneficial for colorectal cancer patients with massive and multiple liver metastases.

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8951-8955
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• 2014

Background: Studies have shown the existence of gender- and age-related differences in the incidence and anatomic distribution of colorectal cancers. The purposes of this study were to analyze the distribution characteristics of colorectal cancer patients regarding gender, age, location and tumor size in the course of colonoscopy. Materials and Methods: All colorectal cancer patients who underwent colonoscopy in the First Affiliated Hospital of Guangxi Medical University from 2003 to 2012 were included in our retrospective study. Demographic information (age and gender) and colonoscopy report information (tumor size and location) were collected and analyzed. To compare the gender differences in tumor location and tumor size, as well as the size differences in tumor location, the chi-square test was used. Results: A total of 3, 369 colorectal cancer patients (2, 007 men vs 1, 362 women) were included in our study. Statistical analysis showed there was no gender difference in the anatomic distribution of the tumors (p>0.05). However, there was a gender difference in tumor size (p<0.05). In addition, our study found there was a significant difference in tumor size between rectal and colon tumors (p<0.001). Conclusions: There was no gender difference in the anatomic distribution of colorectal tumors. In addition, tumors observed in men were larger than in women.

• Asian Pacific Journal of Cancer Prevention
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• 제17권6호
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• pp.2741-2744
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• 2016

The CKLF-like MARVEL transmembrane domain-containing family (CMTM) is a novel family of genes first reported at international level by Peking University Human Disease Gene Research Center. The gene products act between chemokines and the transmembrane-4 superfamily. Located in several human chromosomes, the CMTMs CKLF and CMTM1 to CMTM8 may be unregulated in tumors and act as potential tumor suppressor genes with important roles in the immune, male reproductive and hematopoietic systems. In-depth studies in recent years established a close relation between CMTMs and tumorigenesis and metastasis. The CMTM family has a significant clinical value in diagnosis and treatment of diseases linked to tumors and the immune system.

• 항공산업연구
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• 통권69호
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• pp.1-27
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• 2007

항공우주산업은 생산유발효과가 높고 고용창출도 높을 뿐만 아니라 부가가치산업이나, 대규모적 투자에 따른 투자 위험과 기술적 위험이 높아 정부차원에서의 개입이 불가피한 산업으로 인식된다. 최근 항공우주산업에 대한 정부의 지원 형태는 클러스터 조성, 지방세 감면, 토지 임대를 통한 기업지원 등 과거에 비해 더욱 다양한 형태로 발전되고 있다. 이와 같은 정부지원 형태의 다양성은 기존의 전통적 방식에 의한 지원으로는 글로벌 경쟁이 치열해지는 국제경쟁에서 경쟁력 우위를 유지하기 어렵다는 것을 반증하는 것이라고 할 수 있다. 특히 기존의 산업 중심의 정부지원 전략에서 기업중심의 정부지원 전략으로의 선회 경향은 산업의 주체는 기업이기 때문에 기업의 전체적 역량에 의한 경쟁우위가 글로벌 경쟁에서 보다 중요하다는 점을 시사하고 있다. 경남의 항공우주산업 클러스터 조성 여건은 인프라 구축면에서 여타 지역에 비해 매우 우수한 하부 기반을 구축하고 있어 클러스터 구축에 따른 효율성과 국제경쟁력 확보 가능성이 높다고 할 수 있다. 먼저, 클러스터 구축의 핵심이 되는 핵심선도기업인 KAI가 15년 전부터 대상지역에서 생산활동 중이며, 교육 및 훈련 기능도 비교적 풍부할 뿐만 아니라 공항도 인접해 있어 신속한 물류 및 정보공유, 해외시장과의 접근성이 높다고 할 수 있다. 결론적으로 볼 때, 경남지역의 항공우주산업 클러스터 구축의 타당성은 높다고 할 수 있다. 특히 현재의 항공우주산업 발전 단계상으로 볼 때, 부품산업의 발전이 긴요한 과제이므로 동 클러스터는 항공우주 부품 수출중심의 핵심 거점 클러스터로의 조성할 필요성이 높다고 할 수 있다. 이와 같은 클러스터 조성에 따른 경남 항공우주 클러스터의 운영체계는 “항공우주산업 혁신 클러스터 추진단”을 중심으로 입주 업체, 항공우주 수출 지원단, 관련 R&D 기관 및 교육기관 등이 긴밀하게 연계 되어 운영되어야 할 것이다. 이외에도 중앙정부와의 협의 및 관련 단체들과의 연계를 통해 클러스터의 효율성과 경쟁력 제고를 위한 활동을 적극 추진해야 할 것이다.