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A Study on the Edge Enhancement of X-ray Images Generated by a Gas Electron Multiplier Chamber
Moon. B.S., Coster. Dan 한국지능시스템학회 International journal of fuzzy logic and intelligent systems 6 Pages
한국지능시스템학회 International journal of fuzzy logic and intelligent systems 2004, Vol.4 No.2 155-160 (6 pages)
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Speckle Noise Reduction and Edge Enhancement in Ultrasound Images Based on Wavelet Transform
Kim. Yong-Sun, Ra. Jong-Beom 대한의용생체공학회 Journal of biomedical engineering research : the official journal of the Korean Society of Medical & 10 Pages
대한의용생체공학회 Journal of biomedical engineering research : the official journal of the Korean Society of Medical & 2008, Vol.29 No.2 122-131 (10 pages)
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Enhancement of SNUF Active Trailing-edge Flap Blade Mechanism Design
은원종, 신상준, Natarajan. Balakumaran, Eun. WonJong, Shin. SangJoon 한국소음진동공학회 한국소음진동공학회논문집 9 Pages
한국소음진동공학회 한국소음진동공학회논문집 2013, Vol.23 No.7 645-653 (9 pages)
SNUF(Seoul National University flap) 블레이드는 고주파 영역에서 진동 감쇠를 위하여, 압전작동기에 의해 움직이는 뒷전 플랩이 장착되어 있는 축소형 로터 블레이드이다. 이 블레이드를 설계하기 위하여 2차원 단면 해석과 1차원 기하학적 정밀 보 해석이 수행되었고, 사용할 재료의 특성을 확인하였다. 이전 연구자들의 실험을 참조하여, ${pm}4^{circ}$의 플랩 변위각을 진동감쇠를 위한 설계요건으로 선정하였다. 플랩의 연결 메커니즘을 설계하고, 설계된 메커니즘의 성능을 확인하기 위하여 정적 벤치 시험을 수행하였다. 개선된... -
Immediate effects of a neurodynamic sciatic nerve sliding technique on hamstring flexibility and postural balance in healthy adults
Jae-myoung Park, Jae-yun Cha, Hyun-jin Kim, Yasuyoshi Asakawa 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2014, 제 3권 제 1호 7 38-42 (5 pages)
Objective: In this study, we applied a neurodynamic sciatic nerve sliding technique to healthy adults to elucidate its effects on hamstring flexibility and postural balance. Design: Cross-sectional study. Methods: This study targeted twenty four healthy adults (16 men, 8 women). A neurodynamic sciatic nerve sliding technique was applied 5 times to all subjects’ dominant leg. The subjects were asked to sit on the bed while performing cervical and thoracic flexion, as well as knee flexion with... -
Effect of autologous platelet-rich plasma application on cutaneous wound healing in dogs
Cho-Hee Jee, Na-Young Eom, Hyo-Mi Jang, Hae-Won Jung, Eul-Soo Choi, Jin-Hee Won, Il-Hwa Hong, Byeong-Teck Kang, Dong Wook Jeong, 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 1호 10 79-87 (9 pages)
This study was conducted to identify the effectiveness of platelet-rich plasma (PRP) and efficacy of intralesional injection as a method of application to acute cutaneous wounds in dogs. Healthy adult beagles (n = 3) were used in this study. Autologous PRP was separated from anticoagulant treated whole blood in three dogs. Cutaneous wounds were created and then treated by intralesional injection of PRP in the experimental group, while they were treated with saline in the control group on days 0,... -
Real time observation of mouse fetal skeleton using a high resolution X-ray synchrotron
Dong Woo Chang, Bora Kim, Jae Hoon Shin, Young Min Yun, Jung Ho Je, Yeu kuang Hwu, Jung Hee Yoon, Je Kyung Seong 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 2호 1 107-114 (8 pages)
The X-ray synchrotron is quite different from conventional radiation sources. This technique may expand the capabilities of conventional radiology and be applied in novel manners for special cases. To evaluate the usefulness of X-ray synchrotron radiation systems for real time observations, mouse fetal skeleton development was monitored with a high resolution X-ray synchrotron. A non-monochromatized X-ray synchrotron (white beam, 5C1 beamline) was employed to observe the skeleton of mice under... -
The effects of cyclophosphamide treatment on the pathogenesis of subgroup J avian leukosis virus (ALV-J) infection in broiler chickens with Marek's disease virus exposure
Yongbaek Kim, Thomas P. Brown and Mary J. Pantin-Jackwood 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 1호 7 49-58 (10 pages)
Studies were performed to determine the effects of Bcell suppression on the pathogenesis of Subgroup J avian leukosis virus (ALV-J) in broiler chickens. Neonatal chickens were treated with cyclophosphamide (CY) or PBS, and then infected with ALV-J (ADOL-7501) at 2 weeks of age. CY treatment induced B cell specific immunosuppression throughout the experiment confirmed by decreased bursal weight, intact lymphocyte mitogenetic activity stimulated by Con A and increased relative subpopulation of... -
Identification of a putative cellular receptor 150 kDa polypeptide for porcine epidemic diarrhea virus in porcine enterocytes
Jin Sik Oh, Dae Sub Song, Bong Kyun Park 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2003, 제 4권 제 3호 12 269-275 (7 pages)
Porcine epidemic diarrhea virus (PEDV) causes an acute enteritis in pigs of all ages, often fatality for neonates. PEDV occupies an intermediate position between two well characterized members of the coronavirus group I, human coronavirus (HCoV-229E) and transmissible gastroenteritis virus (TGEV) which uses aminopeptidase N (APN), a 150 kDa protein, as their receptors. However, the receptor of the PEDV has not been identified yet. A virus overlay protein binding assay (VOPBA) was used to... -
Effects of cyclosporin A treatment on the pathogenesis of avian leukosis virus subgroup J infection in broiler chickens with Marek’s disease virus exposure
Yongbaek Kim, Thomas P. Brown, Mary J. Pantin-Jackwood 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2003, 제 4권 제 3호 8 245-255 (11 pages)
In this study, we investigated the effects of T-cell suppression on the pathogenesis of subgroup J avian leukosis virus (ALV-J). Chickens were treated with cyclosporin A (CSP) 50 mg/Kg body weight or a corresponding volume of olive oil per every three days after hatching until the end of experiment. Some of the chickens from each treatment group were infected with an isolate of ALV-J, ADOL-7501, at 2 weeks of age. The effects of viral infection were compared to uninfected birds in same treatment... -
Diagnostic imaging of malignant insulinoma in a dog
Ji Hye Choi , Seo Yeon Keh , Sung Soo Kim , Su Hyung Lee , Hye Jin Kim , Hee Yeon Choi , Youn Ji Lim , Hyun Wook Kim , 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 4 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2012, 제 52권 제 3호 9 205-208 (4 pages)
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A Study of Singapore Music Teacher Training System
Mikyung Rim, Eunsil Park, Hye-Suk Lim 한국음악교육학회 음악교육연구 21 Pages
한국음악교육학회 음악교육연구 2020, 제 49권 제 2호 8 197-217 (21 pages)
The purpose of this study was to explore the characteristics of Singapore's music teacher training process. The research method was to investigate and analyze the information regarding this topic mainly through the web sites of Singapore Ministry of Education, National Institute of Education, Nanyang Technological University and Ats Institutes in Singapore. The results of the study are: 1) Singapore has three tracks of music teacher training courses(diploma, bachelor degree, postgraduate degree... -
Tetramethylpyrazine reverses anxiety-like behaviors in a rat model of post-traumatic stress disorder
Bombi Lee, Insop Shim, Hyejung Lee, Dae-Hyun Hahm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 14 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.5 6 525-538 (14 pages)
Post-traumatic stress disorder (PTSD) is a trauma-induced psychiatric disorder characterized by impaired fear extermination, hyperarousal, and anxiety that may involve the release of monoamines in the fear circuit. The reported pharmacological properties of tetramethylpyrazine (TMP) include anti-cancer, anti-diabetic, anti-atherosclerotic, and neuropsychiatric activities. However, the anxiolytic-like effects of TMP and its mechanism of action in PTSD are unclear. This study measured several... -
Extremely Low Frequency Magnetic Field Modulates the Level of Neurotransmitters
YoonHeeChung, YoungJooLee, HoSungLee, SuJinChung, CheolHeeLim, KeonWoongOh, UyDongSohn, EonSubPark, JiHoonJeong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.1 3 15-20 (6 pages)
This study was aimed to observe that extremely low frequency magnetic field (ELF-MF) may be relevant to changes of major neurotransmitters in rat brain. After the exposure to ELF-MF (60 Hz, 2.0 mT) for 2 or 5 days, we measured the levels of biogenic amines and their metabolites, amino acid neurotransmitters and nitric oxide (NO) in the cortex, striatum, thalamus, cerebellum and hippo-campus. The exposure of ELF-MF for 2 or 5 days produced significant differences in norepinephrine and vanillyl... -
Ursolic Acid-Induced Elevation of Serum Irisin Augments Muscle Strength During Resistance Training in Men
HyunSeokBang, DaeYunSeo, YongMinChung, Kyoung-MoOh, JungJunPark, FigueroaArturo6, Seung-HunJeong, NariKim, JinHan 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.5 13 441-446 (6 pages)
lean body mass, glucose, and insulin levels remaining unchanged. IGF-1 and irisin were significantly increased compared with baseline levels in the RT+UA group (p＜0.05). Maximal right and left extension (p＜0.01), right flexion (p＜0.05), and left flexion (p＜0.001) were significantly increased compared with baseline levels in the RT+UA group. These findings suggest that UA-induced elevation of serum irisin may be useful as an agent for the enhancement of skeletal muscle strength during RT. -
Multiple Effects of a Novel Epothilone Analog on Cellular Processes and Signaling Pathways Regulated by Rac1 GTPase in the Human Breast Cancer Cells
HongZhang, FanAn, LiTang, RongguoQiu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.2 4 109-120 (12 pages)
The epothilones are a class of microtubule inhibitors that exhibit a strong antitumor activity. UTD2 is a novel epothilone analog generated by genetic manipulation of the polyketide biosynthetic gene cluster. This study investigated the effects of UTD2 on the actin cytoskeleton and its critical regulators, and the signaling pathways which are essential for cell motility, growth and survival in MCF-7 breast cancer cells. Results showed that UTD2 inhibited the cellular functions of actin... -
Dexamethasone Induces FcgRIIb Expression in RBL-2H3 Cells
PrashantaSilwal, Mi-NamLee, Choong-JaeLee, Jang-HeeHong, UkNamgung, Zee-WonLee, JinhyunKim, KyuLim, GiRyangKweon, JongILPark, SeungKielPar 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.6 4 393-398 (6 pages)
Mast cells are involved in allergic responses, protection against pathogens and autoimmune diseases. Dexamethasone (Dex) and other glucocorticoids suppress FcՅRI-mediated release of inflammatory mediators from mast cells. The inhibition mechanisms were mainly investigated on the downstream signaling of Fc receptor activations. Here, we addressed the effects of Dex on Fc receptor expressions in rat mast cell line RBL-2H3. We measured mRNA levels of Fc receptors by real-time PCR. As... -
CTLA-4-Tg/CD-28-KO Mice Exhibit Reduced T Cell Proliferation in vivo Compared to CD-28-KO Mice in a Graft-versus-host Disease Model
Jong-SunYoo, Yun-JungLee, JooWonYoon, KyeongEunHyung, KwangWooHwang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.5 10 349-353 (5 pages)
Activated T cells express inhibitory receptors such as CTLA-4 that can downregulate immune responses. Blockade of or genetic deficiency in CTLA-4 can result in autoimmunity. Therefore, strategies to increase the inhibitory function of CTLA-4 may be attractive in settings of undesirable T cell responses such as autoimmunity or transplant rejection. We have tested the hypothesis that transgenic constitutive expression of CTLA-4 can further attenuate immune responses when compared with normal... -
Gap Junction Contributions to the Goldfish Electroretinogram at the Photopic Illumination Level
Doh-YeonKim, Chang-SubJung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.3 11 219-224 (6 pages)
Understanding how the b-wave of the electroretinogram (ERG) is generated by full-field light stimulation is still a challenge in visual neuroscience. To understand more about the origin of the b-wave, we studied the contributions of gap junctions to the ERG b-wave. Many types of retinal neurons are connected to similar and different neighboring neurons through gap junctions. The photopic (cone-dominated) ERG, stimulated by a small light beam, was recorded from goldfish (Carassius auratus) using... -
일본 개호예방사업의 현황과 새로운 예방 사업의 도입을 위한 과제에 관한 연구
윤정아, 한창완, 사사키 노리오, 세키타 야스요시 한국사회서비스학회 사회서비스연구 26 Pages
한국사회서비스학회 사회서비스연구 2012, 제 3권 제 1호 4 95-120 (26 pages)
일본 국립사회보장ㆍ인구문제연구소의 추계에 의하면, 2010년 현 재, 일본의 노인인구 비율은 23.1%로 앞으로도 꾸준히 증가할 것으로 예상된다. 앞으로 50년 후인 2060년에는 현재보다 523만 명이 증가 한 3464만 명으로, 차지하는 비율은 39.9%에 이를 것으로 예상된다 (일본 국립사회보장ㆍ인구문제연구소, 2012). -
Overcoming Encouragement of Dragon Fruit Plant (Hylocereus undatus) against Stem Brown Spot Disease Caused by Neoscytalidium dimidiatum Using Bacillus subtilis Combined with Sodium Bicarbonate
Sanan Ratanaprom, Korakot Nakkanong, Charassri Nualsri, Palakrit Jiwanit, Thanyakorn Rongsawat, Natthakorn Woraathakorn 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 1 205-214 (10 pages)
The use of the supernatant from a Bacillus subtilis culture mixed with sodium bicarbonate was explored as a means of controlling stem brown spot disease in dragon fruit plants. In in vitro experiments, the B. subtilis supernatant used with sodium bicarbonate showed a strong inhibition effect on the growth of the fungus, Neoscytalidium dimidiatum, the agent causing stem brown spot disease and was notably effective in preventing fungal invasion of dragon fruit plant. This combination not only... -
Genetic Variation and Biological Control of Fusarium graminearum Isolated from Wheat in Assiut-Egypt
한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2016, 32권 2호 8 145-156 (12 pages)
Fusarium graminearum Schwabe causes Fusarium head blight (FHB), a devastating disease that leads to extensive yield and quality loss of wheat and other cereal crops. Twelve isolates of F. graminearum were collected from naturally infected spikes of wheat from Assiut Egypt. These isolates were compared using SRAP. The results indicated distinct genetic groups exist within F. graminearum, and demonstrated that these groups have different biological properties, especially with respect to their... -
Antifungal Activities of Crude Extractum from Camellia semiserrata Chi (Nanshancha) Seed Cake Against Colletotrichum musae, Colletotrichum gloeosporioides and Penicillium italicum in vitro and in vivo Fruit Test
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 4호 10 414-420 (7 pages)
Antifungal activities of crude extractum of Nanshancha Seed Cake (NSC), to inactivate postharvest pathogens were investigated. Highest inhibitory rate was found against C. musae, C. gloeosporioides and C. papaya P.Henn, which was much stronger than that by tea saponin. Compared to tea saponin, effects of NSC extractum was relatively weak and similar on C. gloeosporioides Penzig and P. italicum. In an in vivo study, best controlling effects by NSC extractum was found with banana anthracnose... -
Plant Growth-Promoting Rhizobacteria Stimulate Vegetative Growth and Asexual Reproduction of Kalanchoe daigremontiana
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 3호 13 310-315 (6 pages)
Certain bacterial species associate with plant roots in soil. The plant growth-promoting rhizobacteria (PGPR) stimulate plant growth and yield in greenhouse and field. Here, we examined whether application of known bacilli PGPR strains stimulated growth and asexual reproduction in the succulent plant Kalanchoe daigremontiana. Four PGPR strains B. amyloliquefaciens IN937a, B. cereus BS107, B. pumilus INR7, and B. subtilis GB03 were applied to young plantlets by soil-drenching, and plant growth... -
Note : Open Access ; Occurrence of dsRNA Mycovirus (LeV-FMRI0339) in the Edible Mushroom Lentinula edodes and Meiotic Stability of LeV-FMRI0339 among Monokaryotic Progeny
한국식물병리학회 The Plant Pathology Journal 5 Pages
한국식물병리학회 The Plant Pathology Journal 2013, 29권 4호 14 460-464 (5 pages)
dsRNA was found in malformed cultures of Lentinula edodes strain FMRI0339, one of the three most popular sawdust cultivated commercial strains of shiitake, and was also found in healthy-looking fruiting bodies and actively growing mycelia. Cloning of the partial genome of the dsRNA revealed the presence of the RdRp sequence of a novel L. edodes mycovirus (LeV), and sequence comparison of the cloned amplicon showed identical sequences sequence to known RNA-dependent RNA polymerase genes of LeV... -
A Bacterial Endophyte, Pseudomonas brassicacearum YC5480 Isolated from the Root of Artemisia sp. Producing Antifungal and Phytotoxic Compounds
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2008, 24권 4호 13 461-468 (8 pages)
An endophytic bacterial strain YC5480 producing antifungal and phytotoxic compounds simultaneously was isolated from the surface sterilized root of Artemisia sp. collected at Jinju area, Korea. The bacterial strain was identified as a species of Pseudomonas brassicacearum based on its 16S rRNA gene sequence analysis and physiological and biochemical characteristics. The seed germination and growth of monocot and dicot plants were inhibited by culture filtrate (1/10-strength Tryptic Soy Broth) of... -
HMD VR게임에서 그래픽 향상을 위한 기술적 이슈
진성아 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 10 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2017, 제 7권 제 12호 83 903-912 (10 pages)
본 논문에서는 최근 핫 이슈가 되고 있는 HMD VR게임에서 그래픽 향상을 위한 기술적 이슈와 실제로 개발된 게임의 특징을 살펴보고 향후 해결해야하는 연구이슈를 집어보고자 한다. 콘텐츠의 성 공적인 확장과 보급은 개발 플랫폼의 기술적 진보와 함께 진행되어 왔다. 가상현실은 PC, 인터넷, 스 마트폰을 잇는 차세대 플랫폼으로 자리매김하고 있다. 특히나 HMD VR게임은 기존의 게임이 지원하 지 못하는 간편함과 몰입감을 제공하고 있기에 게임 사용자로부터 인기와 관심을 받고 있다. 하지만 고사양 PC기반의 시각적 요구수준에... -
한국교육에서 ‘의료화’의 사회적 성격에 관한 연구
김희정, 손준종 한국교육사회학회 한국교육사회학회 학술대회자료집 33 Pages
한국교육사회학회 한국교육사회학회 학술대회자료집 2017 춘계학술대회 10 135-167 (33 pages)
교육은 근대적 주체를 만들어내는 장치이다. 그리고 교육은 의료적 규율을 내면화한 건 강한 주체를 길러내고자 한다. 교육과 의료가 사회를 통제하고 관리하는 권력의 테크놀로지 로서 기능하면서 그 영역이 확대되는 현상을 교육화와 의료화라고 볼 수 있다. 본 연구는 한국교육에서 의료화의 사회적 성격을 분석해 보고자 한다. 이를 위해 두 가지 연구문제를 설정하였다. 의료화가 누구에 의해 교육에 들어왔는지 의료화의 추동 주체와 그 의료화를 추동한 주체들이 어떤 의학적 지식과 담론을 형성했는가를 분석한다. Foucault의... -
한국교육에서 의료화 담론의 계보 분석: 학생에 대한 의료적 개입을 중심으로
김희정, 손준종 한국교육사회학회 교육사회학연구 33 Pages
한국교육사회학회 교육사회학연구 2017, 제 27권 제 2호 2 35-67 (33 pages)
의료화란 일상의 많은 부분들이 의학적 지식에 따라 관리되고 통제되면서 의료적 개입이 확장되는 현상을 말한다. 교육적으로도 학생에 대한 의료적 개입은 다양한 영역으로 확대되 고 있다. 이 연구의 목적은 한국교육에서 의료화 담론의 계보를 분석하는 것이다. 구체적으 로 누구에 의해, 어떠한 의학적 지식과 담론을 바탕으로 학생에 대한 의료적 개입이 이루어 졌는가를 분석하고자 하였다. 연구방법은 권력과 지식 사이의 연결을 추적하여 권력의 실천 과 테크놀로지를 밝히는 Foucault의 계보학적 방법을 활용하였다. 연구 결과,... -
Rethinking Workplace Learning In A Knowledge Economy
Karen E.Watkins Ph.D. 한국성인교육학회 한국성인교육학회 학술대회지 13 Pages
한국성인교육학회 한국성인교육학회 학술대회지 2005년호 1 1-13 (13 pages)
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On Beyong Status Quo: Emerging e-Learning Paradigm in Education
Insook Lee 한국교육학회 한국교육학회 학술대회논문집 26 Pages
한국교육학회 한국교육학회 학술대회논문집 KSSE Inter 19 439-464 (26 pages)
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Reform Policy Directions for Vocational Education in Korea
Suk-Min Chang 한국교육학회 한국교육학회 학술대회논문집 28 Pages
한국교육학회 한국교육학회 학술대회논문집 KSSE Inter 17 394-421 (28 pages)
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심부전 환자 대상 국내 양적 간호연구 분석 및 중재연구의 질 평가
손연정, 서은지 한국기초간호학회 Journal of Korean Biological Nursing Science 14 Pages
한국기초간호학회 Journal of Korean Biological Nursing Science 2017, Volume 19, No 4 2 227-240 (14 pages)
심부전은 심장의 기능 혹은 구조적 이상으로 심실이 혈액을 충 분히 뿜어내지 못하여 신체에 필요한 만큼의 산소를 전달하지 못 하는 만성 진행성 비가역적 질환이다[1]. 최근 급속한 인구 고령화 와 더불어 심부전의 주요 원인인 심근경색의 발생률 증가, 스텐트삽 입술과 같은 치료기술의 발전에 따른 심혈관 질환의 만성화 경향으 로 인해 선진국에서는 성인 인구의 약 1-2%에서 심부전을 앓고 있으 며[2], 특히 70세 이상 노인에서는 약 10%가 심부전 환자로 보고되고 있다. -
Reform Disconnections between the Free Quality Kindergarten Education Scheme and Kindergartens in Hong Kong
Wing Sze Carol Chan 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 16 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2020, Vol.14 No.1 9 193-208 (16 pages)
National Association of Education for Young Children (NAEYC) (2009) stated early childhood education (ECE) practitioners are key agents who develop quality assured curriculum and conduct teaching through developmentally-appropriate practice (DAP). They play the vital role in providing quality education for enhancing children's whole-person development in early years, in the sense that, their importance and significance towards children’s development is an undeniable fact. In order to retain and... -
교육훈련 직무연관성, 자기주도적 학습지원 참여, 역량평가제 실시와 인적자원성과 간 관계에서 조직몰입의 다층매개효과
이정민, 정혜원 한국교육학회 교육학연구 29 Pages
한국교육학회 교육학연구 2019, 57권 2호 9 227-255 (29 pages)
본 연구는 직원의 교육훈련 직무연관성, 자기주도적 학습지원 참여, 역량평가제 실시와 인적자원성과 간 관계에서 조직몰입의 다층매개효과를 검증하고자 한다. 연구의 목적을 달성하기 위하여 인적자본기업패널의 7차년도 자료를 이용하였으며 자료의 위계적 속성을 고려하여 1수준(집단 내), 2수준(집단 간) 효과를 분석할 수 있는 다층모형과 변인들 간 구조적 관계를 파악할 수 있는 구조방정식모형이 결합된 다층구조방정식(multilevel structural equation modeling, MSEM)모형을 적용하여 분석하였다. 직원수준 변인으로는... -
Carbon rich fly ash and their nanostructures
Numan Salah, Sami S. Habib, Zishan H. Khan, Ahmed Alshahrie, Adnan Memic, Attieh A. Al-ghamdi 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 3 23-31 (9 pages)
Carbon rich fly ash was recently reported to have compositions that are ideal for use as a precursor and catalyst for carbon nanotube growth. This fly ash powder is mostly composed of pure carbon, predominantly present as sp2. In this work, the effect of sonication time on the morphology and structural properties of carbon rich fly ash particles is reported. The obtained results show that ultrasound treatment is an effective tool for producing ultrafine particles/fragments with higher porosity,... -
Nanoporous graphene oxide membrane and its application in molecular sieving
S. Mahmood Fatemi, Masoud Arabieh, Hamid Sepehrian 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 4 183-191 (9 pages)
Gas transport through graphene-derived membranes has gained much interest recently due to its promising potential in filtration and separation applications. In this work, we explore Kr-85 gas radionuclide sequestration from natural air in nanoporous graphene oxide membranes in which different sizes and geometries of pores were modeled on the graphene oxide sheet. This was done using atomistic simulations considering mean-squared displacement, diffusion coefficient, number of crossed species of... -
Functionalization of graphene nanoplatelets using sugar azide for graphene/epoxy nanocomposites
Saswata Bose, Lawrence T. Drzal 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 5 101-106 (6 pages)
graphene nanocomposite and an evaluation of its thermo-mechanical performance. Successful functionalization of GnP was confirmed via thermal and spectroscopic study. Raman spectroscopy indicated that the functionalization was on the edge of the graphene sheets; the basal plane was not perturbed as a result of the functionalization. The epoxy/functionalized GnP composite system exhibited an increase in flexural modulus (~18%) and glass transition temperature (~10°C) compared to an... -
Excellent field emission properties from carbon nanotube field emitters fabricated using a filtration-taping method
Dong Hoon Shin, Seung Il Jung, Ki Nam Yun, Guohai Chen, Seok-Gy Jeon, Jung-Il Kim, Cheol Jin Lee 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.3 10 214-217 (4 pages)
A filtration-taping method was demonstrated to fabricate carbon nanotube (CNT) emitters. This method shows many good features, including high mechanical adhesion, good electrical contact, low temperature, organic-free, low cost, large size, and suitability for various CNT materials and substrates. These good features promise an advanced field emission performance with a turn-on field of 0.88 V/mm at a current density of 0.1 mA/cm2, a threshold field of 1.98 V/mm at a current density of 1 mA/cm2,...
