• Title/Summary/Keyword: physical library

Search Result 378, Processing Time 0.023 seconds

Evaluation of the CNESTEN's TRIGA Mark II research reactor physical parameters with TRIPOLI-4® and MCNP

  • H. Ghninou;A. Gruel;A. Lyoussi;C. Reynard-Carette;C. El Younoussi;B. El Bakkari;Y. Boulaich
    • Nuclear Engineering and Technology
    • /
    • v.55 no.12
    • /
    • pp.4447-4464
    • /
    • 2023
  • This paper focuses on the development of a new computational model of the CNESTEN's TRIGA Mark II research reactor using the 3D continuous energy Monte-Carlo code TRIPOLI-4 (T4). This new model was developed to assess neutronic simulations and determine quantities of interest such as kinetic parameters of the reactor, control rods worth, power peaking factors and neutron flux distributions. This model is also a key tool used to accurately design new experiments in the TRIGA reactor, to analyze these experiments and to carry out sensitivity and uncertainty studies. The geometry and materials data, as part of the MCNP reference model, were used to build the T4 model. In this regard, the differences between the two models are mainly due to mathematical approaches of both codes. Indeed, the study presented in this article is divided into two parts: the first part deals with the development and the validation of the T4 model. The results obtained with the T4 model were compared to the existing MCNP reference model and to the experimental results from the Final Safety Analysis Report (FSAR). Different core configurations were investigated via simulations to test the computational model reliability in predicting the physical parameters of the reactor. As a fairly good agreement among the results was deduced, it seems reasonable to assume that the T4 model can accurately reproduce the MCNP calculated values. The second part of this study is devoted to the sensitivity and uncertainty (S/U) studies that were carried out to quantify the nuclear data uncertainty in the multiplication factor keff. For that purpose, the T4 model was used to calculate the sensitivity profiles of the keff to the nuclear data. The integrated-sensitivities were compared to the results obtained from the previous works that were carried out with MCNP and SCALE-6.2 simulation tools and differences of less than 5% were obtained for most of these quantities except for the C-graphite sensitivities. Moreover, the nuclear data uncertainties in the keff were derived using the COMAC-V2.1 covariance matrices library and the calculated sensitivities. The results have shown that the total nuclear data uncertainty in the keff is around 585 pcm using the COMAC-V2.1. This study also demonstrates that the contribution of zirconium isotopes to the nuclear data uncertainty in the keff is not negligible and should be taken into account when performing S/U analysis.

Systematic Review of Assessment Tools for the Housing Environment of the Old Adults Population (노년 인구의 주거환경 평가도구에 관한 체계적 고찰)

  • Lim, Young-Myoung
    • Therapeutic Science for Rehabilitation
    • /
    • v.13 no.2
    • /
    • pp.27-40
    • /
    • 2024
  • Objective : This study aimed to conduct a systematic review of the assessment tools used to assess the housing environment of older adults. Methods : Data were collected from January 2015 to August 31st, 2023, by searching databases including the Cochrane Library, PubMed, and ProQuest. From the 267 articles, nine assessment tools were selected for analysis based on their original instruments. These tools were categorized and systematically organized for analysis based on their frequency of use, assessment purposes, sub-domains, scales, and other relevant criteria. Results : Among the nine tools, HOME FAST and IPAQ-E were the most frequently used (20% each). The objectives of these tools are to assess friendliness, physical barriers, fall prevention, dementia-friendly environments, physical activity, and accessibility. The measurement scope encompassed various factors, such as outdoor spaces, buildings, transportation, housing, and community support. Conclusion : When considering the suitability of housing for the older adults population, providing foundational data for the rational selection of evaluation tools with logical validity is important. This includes factors such as the objectives and measurement scopes of housing environment assessment tools.

A Comparative Analysis of Strategic Plans in University Libraries (대학도서관의 전략적 계획 내용 분석 -미국, 영국, 캐나다, 호주 대학도서관을 중심으로)

  • Cho, Yoon-Hee
    • Journal of the Korean Society for information Management
    • /
    • v.22 no.4 s.58
    • /
    • pp.111-128
    • /
    • 2005
  • University libraries have been facing challenges to accomplish both roles of traditional libraries as physical places and virtual libraries which service electronic resources effectively. University libraries need to establish a strategic plan as a positive tool for designing the future of university libraries addressing threats and opportunities at the same time. This study suggested the core elements be involved in strategic plans of university libraries through comparatively analyzing the actual documents of strategic plans of academic libraries in America, England, Canada and Australia. These strategic plans were divided into formal elements and content elements. In addition, this study presented the latest strategic plans of academic libraries such as UMI. OULS, UBCL, and USL. As a result of research, this study provided the directions and basic materials in order to establish strategic planning at university libraries in Korea.

Analysis of Nursing Intervention Studies on Patients with Breast Cancer in Korea (유방암환자 대상 국내 간호중재 연구 분석)

  • Choi, Kyung-Sook;Kim, Mi-Sook;Lee, In-Ja;Han, Sang-Young;Park, Jung-Ae;Lee, Joo-Hyun
    • Asian Oncology Nursing
    • /
    • v.11 no.1
    • /
    • pp.74-82
    • /
    • 2011
  • Purpose: This study was performed to systematically review the recently published nursing intervention studies. Methods: The literature was identified through the Korean Education and Research Information Service (KERIS), the Korean Information Service System (KISS), and National Assembly Library websites. Key words such as breast cancer, nursing, and intervention were used. The factors analyzed are as follows: 1) the characteristics of studies and study populations, 2) the classification of interventions, 3) outcome indicators and their effects, and 4) effective interventions. Results: Thirty two studies were included. Seventeen studies used a single intervention such as aerobic dance, TaiChi, foot massage, aromatherapy, or a stress-reduction method. Fifteen studies used combined interventions, including education, exercise, counseling, support, yoga or meditation. The data on 47 outcome indicators and their effects were segregated into psycho/spiritual outcomes, stress coping, physical outcomes, cardiorespiratory function, symptom management, arm and shoulder functions, fatigue, and quality of life. Some interventions had positive effects on stress, fatigue, and functions of shoulder. Conclusion: Various interventions are available for breast cancer patients, and some have had positive effects. However, more studies are required to develop evidence-based practice guidelines for nursing interventions.

A Literature Study on Acupuncture for Cerebral Palsy -Based on the Current Traditional Chinese Medical Journals- (뇌성마비의 침자(鍼刺) 치료에 대한 문헌적 고찰 -최근 중의잡지를 중심으로-)

  • Ha, Su-Yun;Min, Sang-Yeon;Kim, Jang-Hyun
    • The Journal of Pediatrics of Korean Medicine
    • /
    • v.23 no.1
    • /
    • pp.205-228
    • /
    • 2009
  • Objectives The purpose of this study is to investigate the current acupuncture therapy of cerebral palsy. Methods We investigated the Chinese clinical papers which were published in the last 10 years(from 1999 to 2008). We found these papers from the oriental medical library in university and we also used the China National Knowledge Infrastructure(CNKI) through the internet and selected 32 papers for analyzing. Results Most papers were described the effect of acupuncture or acupoint-injection. This is more effective way to treat than the general rehabilitation treatment such as the physical therapy, the occupational therapy, and the speech therapy. Acupuncture or acupoint-injection has overall $80{\sim}100%$ of rehabilitation rate. The younger the children were, the longer the treatment period was, and the more successful in treatment. The acupuncture was often used with the general acupuncture and scalp acupuncture. Commonly used major acupuncture points were sishencong(四神聰), bohui(百會), zusanli(足三里), yundongqu(運動區), pinghengqu(平衡區), quchi(曲池), and sanyinjiao(三陰交). Commonly used main meridian pathways were bladder, governor vessel, gallbladder, large intestine, stomach, small intestine meridian. Head is the common site for acupuncture. The main acupoint-injection points were zusanli(足三里), dazhui(大椎), shenshu(腎兪), yamen(啞門), neiguan(內關), and fengchi(風池). For the injection, brain activator, ganglioside M1, cerebroprotein hydrolysate, cytidine diphosphate choline, Vit B1, Vit B12, the salviae root, the safflower were commonly used. Conclusions Acupuncture and acupoint-injection have been shown as an effective treatment on cerebral palsy. The acupuncture was used often the general acupuncture and scalp acupuncture all together. Commonly used main acupuncture points were sishencong, bohui, zusanli, yundongqu, pinghengqu, quchi, sanyinjiao.

  • PDF

The Necessity and the Characteristic of Picture Books for the Silver Generation (실버세대를 위한 그림동화책의 필요성과 특성)

  • Li, Shu;Oh, Chi-Gyu
    • The Journal of the Korea Contents Association
    • /
    • v.16 no.2
    • /
    • pp.387-397
    • /
    • 2016
  • The purpose of this study is to suggest design characteristics of picture books for silver generation empirically through academic consideration of necessity and characteristics of picture books targeting silver generation. Through an analytical result of literature materials such as library and information science, pedagogy, and literature therapeutics, and aging phenomenon, picture books help mental and physical health of silver generation, but picture books for silver generation are insufficient in comparison with demand. Therefore, a theoretical basis of study and development of fairy tale books for silver generation is acutely needed. This study suggested that close attention for characteristics of silver generation is needed to solve a problem about dyslexia of silver generation in story, picture(expression, size, layout, structure, and color), and typography of characteristic factors of picture on designing fairy tale books for silver generation, suggesting needs to develop picture books reflecting characteristics such as visual organ, body function, and psychological factor of silver generation. In addition, design characteristics for composition of picture books for silver generation will be used as part of advanced data in a study on solid analytical data through an actual analysis on silver generation in the future.

Low Power Cryptographic Design based on Circuit Size Reduction (회로 크기 축소를 기반으로 하는 저 전력 암호 설계)

  • You, Young-Gap;Kim, Seung-Youl;Kim, Yong-Dae;Park, Jin-Sub
    • The Journal of the Korea Contents Association
    • /
    • v.7 no.2
    • /
    • pp.92-99
    • /
    • 2007
  • This paper presented a low power design of a 32bit block cypher processor reduced from the original 128bit architecture. The primary purpose of this research is to evaluate physical implementation results rather than theoretical aspects. The data path and diffusion function of the processor were reduced to accommodate the smaller hardware size. As a running example demonstrating the design approach, we employed a modified ARIA algorithm having four S-boxes. The proposed 32bit ARIA processor comprises 13,893 gates which is 68.25% smaller than the original 128bit structure. The design was synthesized and verified based on the standard cell library of the MagnaChip's 0.35um CMOS Process. A transistor level power simulation shows that the power consumption of the proposed processor reduced to 61.4mW, which is 9.7% of the original 128bit design. The low power design of the block cypher Processor would be essential for improving security of battery-less wireless sensor networks or RFID.

A Study of Distribute Computing Performance Using a Convergence of Xeon-Phi Processor and Quantum ESPRESSO (퀀텀 에스프레소와 제온 파이 프로세서의 융합을 이용한 분산컴퓨팅 성능에 대한 연구)

  • Park, Young-Soo;Park, Koo-Rack;Kim, Dong-Hyun
    • Journal of the Korea Convergence Society
    • /
    • v.7 no.5
    • /
    • pp.15-21
    • /
    • 2016
  • Recently the degree of integration of processor and developed rapidly. However, clock speed is not increased, a situation that increases the number of cores in the processor. In this paper, we analyze the performance of a typical Intel Xeon Phi of many core process used for the current operation accelerate. Utilizing the Quantum ESPRESSO, which was calculated using the FFTW library. By varying the number of ranks in MPI when running the benchmarks the performance Xeon Phi. The result shows a good performance in the handling of four job on one physical core. However, four or more to expand the number of MPI Rank is degraded. Through this convergence it was found to improve the performance of Quantum ESPRESSO. It is possible to check the hardware characteristics of the Xeon Phi.

Functional roles of glutamic acid E143 and E705 residues in the N-terminus and transmembrane domain 7 of Anoctamin 1 in calcium and noxious heat sensing

  • Choi, Jonghyun;Jang, Yongwoo;Kim, Haedong;Wee, Jungwon;Cho, Sinyoung;Son, Woo Sung;Kim, Sung Min;Yang, Young Duk
    • BMB Reports
    • /
    • v.51 no.5
    • /
    • pp.236-241
    • /
    • 2018
  • Anoctamin 1 (ANO1) is an anion channel that is activated by changes in cytosolic $Ca^{2+}$ concentration and noxious heat. Although the critical roles of ANO1 have been elucidated in various cell types, the control of its gating mechanisms by $Ca^{2+}$ and heat remain more elusive. To investigate critical amino acid residues for modulation of $Ca^{2+}$ and heat sensing, we constructed a randomized mutant library for ANO1. Among 695 random mutants, reduced $Ca^{2+}$ sensitivity was observed in two mutants (mutant 84 and 87). Consequently, the E143A mutant showed reduced sensitivity to $Ca^{2+}$ but not to high temperatures, whereas the E705V mutant exhibited reduced sensitivity to both $Ca^{2+}$ and noxious heat. These results suggest that the glutamic acids (E) at 143 and 705 residues in ANO1 are critical for modulation of $Ca^{2+}$ and/or heat responses. Furthermore, these findings help to provide a better understanding of the $Ca^{2+}$-mediated activation and heat-sensing mechanism of ANO1.

Use of Complementary and Alternative Medicine in Patients with Gynecologic Cancer: a Systematic Review

  • Akpunar, Dercan;Bebis, Hatice;Yavan, Tulay
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.16 no.17
    • /
    • pp.7847-7852
    • /
    • 2015
  • Purpose: Research carried out with gynecologic cancer patients using CAM was reviewed to provide a source for discussing which CAM method is used for which purpose, patients' perceptions on the effects/side effects occurred during/after using CAM and their sources of information regarding CAM. Materials and Methods: This literature review was carried out for the period between January 2000 and March 2015 using Scopus, Dynamed, Med-Line, Science Dırect, Ulakbim, Research Starters, Ebscohost, Cinahl Complete, Academic Onefile, Directory of Open Access Journals, BMJ Online Journals (2007-2009), Ovid, Oxford Journal, Proquest Hospital Collection, Springer-Kluwer Link, Taylor & Francis, Up To Date, Web Of Science (Citation Index), Wiley Cochrane-Evidence Base, Wiley Online Library, and Pub-Med search databases with "complementary and alternative medicine, gynecologic cancer" as keywords. After searching through these results, a total of 12 full length papers in English were included. Results: CAM use in gynecologic cancer patients was discussed in 8 studies and CAM use in breast and gynecologic cancer patients in 4. It was determined that the frequency of CAM use varies between 40.3% and 94.7%. As the CAM method, herbal medicines, vitamins/minerals were used most frequently in 8 of the studies. When the reasons why gynecologic cancer patients use CAM are examined, it is determined that they generally use to strengthen the immune system, reduce the side effects of cancer treatment and for physical and psychological relaxation. In this review, most of the gynecologic cancer patients perceived use of CAM as beneficial. Conclusions: In order that the patients obtain adequate reliable information about CAM and avoid practices which may harm the efficiency of medical treatment, it is recommended that "Healthcare Professionals" develop a common language.