• Proceedings of the Materials Research Society of Korea Conference
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• 2005.05a
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• pp.50-50
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• 2005

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2003.11a
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• pp.402-402
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• 2003

• Journal of Information Management
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• v.36 no.4
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• pp.175-198
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• 2005

Information services adopting RSS(Really Simple Syndication) is on an increase. It is replacing the existing email services. Information in the area of science and technology is of vast amount and various area and their life-cycle and service is complex. Institutions providing information of a single area are not faced with many obstacles in designing information services using RSS in acquiring a channel for the service. However, RSS service in the area of science and technology has to be more specific in designing and implementing the services. In this study, RSS is compared with other information service protocols, domestic and international trends in the area of RSS is analyzed to implement the RSS based Science and Technology information service system(STI-RSS) and its service.

• Journal of Science and Technology Studies
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• v.9 no.2
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• pp.1-27
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• 2009

This study aims at reviewing and assessing the characteristics of the Korean Science, Technology and Innovation(STI) policy of the 2000s. Starting from the 2000s, Korea's STI policy began to show a new look as there was a clear voice calling for the new strategy creating a new technological development path and the scope of the policy was expanded to the social and quality of life issues. "Creation" and "integration" are becoming the key words of the STI policy of Korea. However, these new trends are not easy to be diffused or institutionalized because still there is the legacy of the old practice of the "catch-up" period, which focused on economic development as well as the imitation of advanced technologies. As result, the current period of the 2000s shows characteristics of a transitional period where the past and the future coexist.

• Journal of Microbiology and Biotechnology
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• v.23 no.10
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• pp.1484-1490
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• 2013

A lack of investigation in specific regions has impeded the understanding of epidemiological trends in the prevalence of sexually transmitted infections (STIs) in South Korea. To help fill this research gap, this study used multiplex polymerase chain reaction (mPCR) to determine the prevalence of STIs detected in clinical specimens collected from women in Cheonan, South Korea between August 2006 and November 2012, and analyzed the prevalence of STIs according to age, bacterial pathogen, and time period. Of the 1,618 specimens collected from 1,523 patients, 536 (35.2%) tested positive for at least 1 pathogen, with 407 (25.2%) testing positive for 1 pathogen, 103 (6.4%) for 2 pathogens, 20 (1.2%) for 3 pathogens, and 6 (0.4%) for 4 pathogens (n = 697 pathogens total). The median ages of all patients and of STI-positive patients were 37.8 and 33.3 years, respectively, and both decreased annually over the study period. Mycoplasma hominis (MH) was detected in 62.1% of the positive specimens, Ureaplasma urealyticum (UU) in 28.4%, Chlamydia trachomatis (CT) in 23.1%, Trichomonas vaginalis (TV) in 7.8%, Mycoplasma genitalium (MG) in 6.5%, and Neisseria gonorrhoeae (NG) in 2.1%. Whereas the prevalence of MH, MG, and TV infection did not vary greatly over the study period, that of UU decreased by one-fifth and that of both CT and NG increased 4-fold. The results indicate great variability in the rates of infection with each pathogen and a decreasing trend in overall STI prevalence, age of patients seeking STI testing, and age of STI-positive patients.

• Journal of the Korea Convergence Society
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• v.8 no.5
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• pp.53-60
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• 2017

This study was conducted to develop the Sexually Transmitted Infections (STI) Knowledge Scale for adolescents. Based on a literature review, the first preliminary 40 questions were created, which content validation by expert reviewers and a pilot study then refined into a draft scale of 29 items. To confirm the validity and reliability of this preliminary scale, data were collected from 141 adolescents between February 13 and 26, 2016: factor analysis resulted in a factor loading of more than .52, while convergent validity revealed that the group receiving STI education was significantly higher (p=.009). The final version of the scale contained 16 items, with a reliability measured by Cronbach's ${\alpha}$ of .85 and the 39.3% of correct answers. The STI knowledge scale developed in this study is a valid scale that can be used to evaluate the effectiveness of STI education for adolescents.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.39 no.5
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• pp.1-7
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• 2002

Deep sub-micron bulk CMOS circuits require gate electrode materials such as metal silicide and titanium silicide for gate oxides. Many authors have conducted research to improve the quality of the sub-micron gate oxide. However, few have reported on the electrical quality and reliability of an ultra-thin gate. In this paper, we will recommend a novel shallow trench isolation structure and a two-step TiS $i_2$ formation process to improve the corner metal oxide semiconductor field-effect transistor (MOSFET) for sub-0.1${\mu}{\textrm}{m}$ VLSI devices. Differently from using normal LOCOS technology, deep sub-micron CMOS devices using the novel shallow trench isolation (STI) technology have unique "inverse narrow-channel effects" when the channel width of the device is scaled down. The titanium silicide process has problems because fluorine contamination caused by the gate sidewall etching inhibits the silicide reaction and accelerates agglomeration. To resolve these Problems, we developed a novel two-step deposited silicide process. The key point of this process is the deposition and subsequent removal of titanium before the titanium silicide process. It was found by using focused ion beam transmission electron microscopy that the STI structure improved the narrow channel effect and reduced the junction leakage current and threshold voltage at the edge of the channel. In terms of transistor characteristics, we also obtained a low gate voltage variation and a low trap density, saturation current, some more to be large transconductance at the channel for sub-0.1${\mu}{\textrm}{m}$ VLSI devices.

• The Journal of the Convergence on Culture Technology
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• v.8 no.6
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• pp.207-213
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• 2022

MBTI(Myer Briggs Type Indicator) is an effective personality type test to intuitively identify and classify people's tendencies. Accordingly, there are active attempts to apply MBTI to the learning area, but research on creating new learning types using MBTI is insufficient. Therefore, this paper examines the factors that affect learning and implements new learning types MY,STI(MY, Study Type Indicator) by applying them to a machine learning algorithm that has these characteristics. Data were collected by conducting a learning type test made with Google Forms on 144 general people, and supervised learning was used during machine learning. As a result, the accuracies of MY,STI were 0.933, 0.866, 0.844, and 0.733 for each learning method, learning motivation, presence or absence of external stimulus, and learning time criteria, respectively.

• Proceedings of the Materials Research Society of Korea Conference
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• 2003.03a
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• pp.61-61
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• 2003

CMP(Chemical Mechanical Polishing)는 VLSI의 제조공정에서 실리콘웨이퍼의 절연막내에 있는 토포그래피를 제어할 수 있는 광역 평탄화 기술이다. 또한 최근에는 실리콘웨이퍼의 나노토포그래피(Nanotopography)가 STI의 CMP 공정에서 연마 후 필름의 막 두께 변화에 많은 영향을 미치게 됨으로 중요한 요인으로 대두되고 있다. STI CMP에 사용되는 CeO$_2$ 슬러리에서 첨가되는 계면활성제의 농도에 따라서 나노토포그래피에 미치는 영향을 제어하는 것이 필수적 과제로 등장하고 있다. 본 연구에서는 STI CMP 공정에서 사용되는 CeO$_2$ 슬러리에서 계면활성제의 농도에 따른 나노토포그래피의 의존성에 대해서 연구하였다. 실험은 8 "단면연마 실리콘웨이퍼로 PETEOS 7000$\AA$이 증착 된 것을 사용하였으며, 연마 시간에 따른 나노토포그래피 의존성을 알아보기 위해 연마 깊이는 3000$\AA$으로 일정하게 맞췄다. 그리고 CMP 공정은 Strasbaugh 6EC를 사용하였으며, 패드는 IC1000/SUBA4(Rodel)이다. 그리고 연마시 적용된 압력은 4psi(Pounds per Square Inch), 헤드와 정반(table)의 회전속도는 각각 70rpm이다 슬러리는 A, B 모두 CeO$_2$ 슬러리로 입자크기가 다른 것을 사용하였고, 농도를 달리한 계면활성제가 첨가되었다. CMP 전 후 웨이퍼의 막 두께 측정은 Nanospec 180(Nanometrics)과 spectroscopic ellipsometer (MOSS-ES4G, SOPRA)가 사용되었다.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.293-294
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• 2011

KISTI collects the scientific and technical articles published in Korea and builds the Korean STI database for scientists. The number of papers exceeds one million. To improve the search efficiency of the database additional processing is required. Abstracting, classification, indexing and extracting is a traditional processing method adding value to information. Indexing and classification are useful tool to assist efficient retrieval. In this paper, authors propose a method to improve information retrieval efficiency by assigning classification code and index terms to records of Korean STI database.