• International Journal of Advanced Culture Technology
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• 제7권4호
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• pp.172-186
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• 2019

As ICT technology develops rapidly and social and consumer interactions require more knowledge of the technology, the interest for baby boomers' ICT technology acceptance is increasing as they age. However, previous studies have limitations as they lack a systematic and in-depth understanding of this phenomenon in which the emerging elderly population embraces emerging technology. To overcome this limitation, this study carried out a phenomenological study on baby boomers' ICT technology acceptance. In addition, since existing studies have just simply listed variables or proved the relationship between a few variables, this study aimed to find the relationship between variables by analyzing the data obtained through semi-structured interviews. Through this procedure, it was aimed to construct conceptual model which illustrates the relationships between variables so that understanding the phenomenon of baby boomers' acceptance of ICT technology with a holistic view could be possible. The ten variables suggested by Lee & Coughlin (2015) that cover multiple sides of baby boomers' technology acceptance were used. As a result, we found that there is a sequential relationship between these variables and different agents can be related to each variable in sequence. Also, from an ecological perspective, we analyzed baby boomers and their surroundings to find agents involved in this phenomenon.

• 한국생물정보학회:학술대회논문집
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• 한국생물정보시스템생물학회 2005년도 BIOINFO 2005
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• pp.72-77
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• 2005

Orthologs are genes having the same function across different species that specialize from a single gene in the last common ancestor of these species. Orthologous groups are useful in the genome annotation, studies on gene evolution, and comparative genomics. However, the construction of an orthologous group is difficult to automate and it takes so much time. It is also hard to guarantee the accuracy of the constructed orthologous groups. We propose a system to construct orthologous groups on many genomes automatically and rapidly. We utilize the grid computing to reduce the sequence alignment time, and we use clustering algorithm in the application of database to automate whole processes. We have generated orthologous groups for 20 complete prokaryotes genomes just in a day because of the grid computing. Furthermore, new genomes can be accommodated easily by the clustering algorithm and grid computing. We compared the generated orthologous groups with COGs (Clusters of orthologous Group of proteins) and KO (KEGG Ortholog). The comparison shows about 85 percent similarity compared with previous well-known orthologous databases.

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2012년도 자성 및 자성재료 국제학술대회
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• pp.172-172
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• 2012

A Pt-skin $Pt_3Ni$(111) surface was reported to show high catalytic activity. In this study, we investigated the magnetic properties and electronic structures of the various oriented surfaces of bulk-terminated and Pt-segregated $Pt_3Ni$ by using a first-principles calculation method. The magnetic moments of Pt and Ni are appreciably enhanced at the bulk-terminated surfaces compared to the corresponding bulk values, whereas the magnetic moment of Pt on the Pt-segregated $Pt_3Ni$(111) surface is just slightly enhanced because of the reduced number of Ni neighboring atoms. Spin-decomposed density of states shows that the dz2 orbital plays a dominant role in determining the magnetic moments of Pt atoms in the different orientations. The lowering of the d-band center energy (-2.22 eV to -2.46 eV to -2.51 eV to -2.65 eV) in the sequence of bulk-terminated (100), (110), (111), and Pt-segregated (111) may explain the observed dependence of catalytic activity on surface orientation. Our d-band center calculation suggests that an observed enhanced catalytic activity of a $Pt_3Ni$(111) surface originates from the Pt-segregation.

• 셀메드
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• 제8권2호
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• pp.10.1-10.2
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• 2018

The aims of this article is to examine that Daegeum Sanjo Rhythm (DSR) compare with Jinyang-jangdan and Jajinmori-jangdan on music therapy. Daegeum has the largest range of notes in wind instruments through Korean music. Jangdan is the essential element of rhythm in Korean music. Just as human body sound and resonant with their rhyme and meters, jangdan has its own rhythms of physical structures and sequence and repeat. Jinyang-jangdan, which is close to western minor code, expresses heartbreaking grief and great mourning feeling, so it makes one feel the catharsis through that rhythm. Jinyang-jangdan of daegeum music may be slow, but it can be sublimated into grim music for human. So, people overcome the sadness through grim music. On the other hand, jajinmori-jangdan gives charm and gaiety to people and to everything. So, it is exciting that it's often performed in festival and parade. Rhythmical music is a tool to improve the well-being of humanity and increase our life choices. Therefore, music therapy surely needs both influences of daegeum sanjo music regardless of the rhythm. Because, daegeum sanjo music is nature-friendly music of the rhythm.

• Journal of Pharmaceutical Investigation
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• 제26권1호
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• pp.55-59
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• 1996

The crystal structure of diflunisal, 2',4'-difluoro-4-hydroxy-3-biphenyl-carboxylic acid, was determined by single crystal X-ray diffraction technique. The compound was recrystallized from a mixture of acetone and water in monoclinic, space group C2/c, with $a\;=\;34.666(6),\;b\;=\;3.743(1),\;c\;=\;20.737(4)\;{\AA},\;{\beta}=\;110.57(2)^{\circ}$, and Z = 8. The calculated density is $1.324\;g/cm^3$. The structure was solved by the direct method and refined by full matrix least-squares procedure to the final R value of 0.045 for 1299 observed reflections. It was found that the molecules in the crystal are partially disordered, that is, the two equivalent conformers $(180^{\circ}$ rotated ones through C(1)-C(7)) are packed alternatively without regular symmetry or sequence. The two phenyl rings of the biphenyl group is tilted to each other by the dihedral angle of $43.3^{\circ}$. The carboxyl group at the salicylic moiety is just coplanar to the phenyl ring, and the planarity of this salicylic moiety is stabilized by an intramolecular hydrogen bond of O(3)-H(O3) O(2). The molecules are dimerized through the intermolecular hydrogen bonds at the carboxyl group in the crystal.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집B
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• pp.706-711
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• 2001

This paper represents a relaxation matching algorithm based on global structure constraint satisfaction. Relaxation matching algorithm is a conventional approach to the matching problem. However, we confronted some problems such as null-matching and multi-matching problems by just using the relaxation matching technique. In order to solve the problems, in this paper, the matching problem is regarded as constraint satisfaction problem, and a relaxation matching algorithm is proposed based on global structure constraint satisfaction. The proposed algorithm is applied a landslide picture to show the effectiveness. When the algorithm is processed at landslide inspecting and monitoring system, motion parameters such as displacement area and its direction are computed. Once movement is recognized, displacements are estimated graphically with statistical amount in the image plane. Simulation has been done to prove the proposed algorithm by using time-sequence image of landslide inspection and monitoring system.

• 한국정보처리학회논문지
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• 제7권2호
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• pp.536-541
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• 2000

터보코드는 인터리버의 크기가 클수록 반복 복호횟수가 많을수록 복호 성능은 우수하지만 시스템이 복잡해져 한 개의 정보비트를 복호할 때 많은 시간지연을 발생시켜 실시간 통신에는 부적합하다는 단점이 있다. 따라서 본 논문에서는 터보코드 부$\cdot$복호기에 사용되는 인터리버의 크기를 감소시켜 한 개의 정보비트를 복호할 때 소요되는 시간지연을 줄이는 새로운 세미 랜덤(Semi-Random) 인터리버 알고리즘을 제안하였다. 세미 랜덤 인터리버 알고리즘은 입력 데이터 길이의 1/2 크기만큼 인터리버를 구성하고, 인터리버 내에 쓸때는 블록 인터리버처럼 행으로 쓰고, 읽을 때는 랜덤하게 읽음과 동시에 다음 데이터가 그 주소 번지에 위치하게 된다. 따라서 기존의 블록, 대각, 랜덤 인터리버와 알고리즘의 복잡도를 비교할 시 그 복잡도를 1/2로 감소시킬 수 있게 된다.

• KIEAE Journal
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• 제15권2호
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• pp.19-26
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• 2015

Purpose: Maximizing human comfort in design of medical environments depends immensely on specialized architects particularly critical care design; the study proposes Evidence-Based Design as an apparent analog to Evidence-Based Medicine. Healthcare facility designs are substantially based on the findings of study in an effort to design environments that augment care by improving patient safety and being therapeutic. On SPSS (Statistical Package for Social Science) t-test is applied to simulate two independent variables of PDR (Pre Design-Research) and POE (Post- Occupancy Evaluation). PDR is conducted on relatively new hospital Hallym University Dongtan Sacred Heart Hospital to analyse visibility from researchers' point of view, here the ICU is arranged in I-Shape. POE is applied on Dongguk University Ilsan Hospital to simulate walking on LogWare where two NS are designed based on L- Shape and Seoul St. Mary's Hospital, The Catholic University of Korea where five NS are functional for ICU Intensive Care Unit, Surgical Intensive Care Unit (SICU), Medical Intensive Care Unit (MICU), Critical Care Unit (CCU), Korean Oriental Medical Care Unit which are mostly arranged in U-Shape, and walking pattern is recognized to be in a zigzag path. Method: T-Test is applied on two dependent communication variables: walkability and visibility, with confidence interval of 95%. This study systematically analyses the Nurse Station (NS) typo-morphology, and simulates nurse horizontal circulation, by computing round route visits to patient's bed, then estimating minimum round route on LogWare stop sequence software. The visual connectivity is measured on depth map graphs. Hence the aim is to reduce staff stress and fatigue for better patients care by minimizing staff horizontal travel time and to facilitate nurse walk path and support space distribution by increasing effectiveness in delivering care. Result: Applying visibility graph and isovist field on space syntax on I- Shape, L- Shape and U- Shape ICU (SICU, MICU and CCU) configuration, I-shape facilitated 20% more patients in linear view as they stir to rise from their beds from nurse station compared to U-shape. In conclusion, it was proved that U-Shape supply minimum walking and maximum visibility; and L shape provides just visibility as the nurse is at pivot. I shape provides panoramic view from the Nurse Station but very rigorous walking.

• 한국방사선학회논문지
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• 제11권1호
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• pp.49-54
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• 2017

MRI장비에서 자장의 세기가 증가 하게 되면 사용하는 RF(Radiofrequency) pulse 또한 증가 하게 되고 이는 MRI 장비 안에 놓인 인체의 체온 상승을 증가 시키게 하는 역할을 하게 된다. 이에 국소부위에서의 열 발생을 알아보고자 젤라틴과 pork sample 이용하여 측정하였다. 본 연구는 2014년 12월 21일부터 2015년 8월 14일까지 153명의 환자를 대상으로 실시하였다. 3대의 MRI(1.5T- 1대, 3.0T- 2대)장비를 사용하여 뇌 또는 간 부위에서 일상적으로 쓰이는 sequence 프로토콜을 동일하게 적용하여 검사하였다. 검사 전 후 체온 측정은 적외선 타입의 귀 체온계(Braun社)를 사용하였으며 대상자의 심리적 상태는 직접 설문을 통하여 파악했다. 임상 환자를 대상으로 한 체온 상승 결과를 보면 3.0T가 1.5T에서보다 평균 $0.15^{\circ}C$정도 높았고(p<0.012) 3.0T내 에서도 Philips제조회사에서 보다 GE社 MRI장비에서 $0.14^{\circ}C$정도 더 높았다. 심인성 상태에 따른 결과를 살펴보면 MRI검사 진행 중 나는 소리에 대한 민감성 정도와 체온상승과의 관계는 무관하였고, 폐쇄성에 대한 응답이 긴장감으로 느꼈다고 대답하는 사람일수록 체온이 더 상승하는 경향을 보였다. 자장의 세기가 높은 MRI장비일수록 RF 반응물질(물, 금속물질)에 의한 화상이나 체온상승으로 인한 위험한 상황발생(체온조절 장해 환자의 경우 고온 손상, 과다 땀 발생으로 인한 탈진)이 나타나지 않도록 환자의 상태를 좀 더 예의 주시하며 MRI검사를 진행할 필요가 있겠다. 높은 자기장을 기반으로 한 MRI장비는 인체에 흡수되는 전자파 흡수율인 SAR를 비례적으로 증가시키므로 앞으로는 RF 코일 성능을 향상하거나 영상의 질을 향상시키기 위한 이미지 프로그램을 개발하는 등 자기장 이외의 방법을 강구하는 것이 필요하다.

• Journal of Microbiology and Biotechnology
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• 제15권5호
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• pp.1100-1105
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• 2005

Previous work has identified a Streptomyces coelicolor gene, rns, encoding a 140 kDa protein (RNase ES) that exhibits the endoribonucleolytic cleavage specificity characteristic of RNase E and confers viability on and allows the propagation of E. coli cells lacking RNase E. Here, we identify a putative S. coelicolor 9S rRNA sequence and sites cleaved by RNase ES. The cleavage of the S. coelicolor 9S rRNA transcript by RNase ES resulted in a 5S rRNA precursor (p5S) that had four and two additional nucleotides at the 5' end and 3' ends of the mature 5S rRNA, respectively. However, despite the similarities between RNase E and RNase ES, these enzymes could accurately process 9S rRNA from just their own bacteria, indicating that these ancient enzymes and the rRNA segments that they attack appear to have co-evolved.