佛立佛多顎漠錫마마硏究

孟慧英 漢陽大學校 民族學硏究 2001 民族과文化 Vol.10 No.-

中國滿 : 通古斯民族的節日供俗

孟慧英 한양대학교 민족학연구소 2002 民族과文化 Vol.11 No.-

중국의 만-퉁구스 어족은 만·시버·허저·에벤키·오로촌을 포함한다. 이들 민족의 주기적인 종교 활동은 샤머니즘과 관련된 공통된 특징이 있으며 민족문화의 가장 전통적인 부분의 하나이다. 과거 자체적인 역법(曆法)이 없던 중국의 만-퉁구스 민족들은 따라서 명확한 민족 명절이 없었다. 후에 사회의 발전 과정에서 한족(漢族) 민간의 명절 영향으로 설·정월 보름·단오·추석 등이 핵심적인 명절이 되었다. 이들 민족의 전통적인 주기적 종교제사는 자연환경과 결부된 생산 양식 및 경제 유형을 바탕으로 한다. 즉 계절의 변화와 동식물의 성장과 생활 습관에 따라 독특한 제사 주기가 형성된다. 이는 시대에 따라 그 여건이 바뀌기도 한다. 예를 들어 만족의 전통명절은 봄과 가을의 축제가 전형적인데 현재는 가을 제사가 중요하게 여겨진다. 이는 만족 사회가 농경사회에 적응한 결과이다. 본래 만족은 여진족 시기까지만 해도 수렵이 중시되어 봄사냥에 따른 봄 제사가 더욱 성대하였다. 중국 만-퉁구스 민족의 전통적인 명절·축제 등은 모두 샤먼을 중심으로 집안 혹은 씨족·마을 등을 단위로 진행된다. 그러나 역사의 발전에 따라 전통 활동은 점차 소멸하고 풍속 역시 쇠퇴하였다. 각 민족 전통유산의 보존이 시급한 상황이다.

ECONOMIC GROWTH AND TRANSITION: A STOCHASTIC TECHNOLOGICAL DIFFUSION MODEL

HUI-YING SNG,SHAHIDUR RAHMAN,WAI-MUN CHIA 중앙대학교 경제연구소 2009 Journal of Economic Development Vol.34 No.2

This paper constructs a stochastic growth model that anchors on technology diffusion and improvement in social infrastructure to explain the growth of developing countries. The model is based on the technological diffusion model by Barro and Sala-i-Martin (1997) with two significant extensions: the (productivity) parameter in the model which represents social infrastructure is being endogenized and probability of adverse shocks is being incorporated. The stochastic technological diffusion model is able to explain the various economic growth and transition phases of developing economies. Technology diffusion is modeled as the determinant of conditional convergence, while technological progress and economic openness further strengthen the social infrastructure bringing about absolute convergence. The model is also able to explain why some developing economies experience economic take-off while others do not.

White organic light-emitting diodes based on benzothiazole derivative

Hui-ying Fu,Xiao-tong Ye,Gao-yu Zhong,Zhi-yang Zhong,Fei Xiao 한국물리학회 2010 Current Applied Physics Vol.10 No.5

This paper describes the white organic light-emitting diodes (WOLEDs) made from a benzothiazole derivative, N-(4-(benzo[d]thiazol-2-yl)phenyl)-N-phenylnaphthalen-1-amine (BPNA). The bright yellowish-white emission was obtained from a non-doped triple-layer device: ITO/NPB (40 nm)/BPNA (50 nm)/Alq3 (40 nm)/LiF/Al. The Commission Internationale de L’Eclairage (CIE) coordinates of the device were (0.24, 0.36) at 10 V. The maximum brightness of the device was 9225 cd/㎡ at 14.4 V. A current efficiency of 3.08 cd/A, a power efficiency of 1.21 lm/W and an external quantum efficiency of 1.18% at a driving current density of 20 mA/㎠ were achieved. WOLED with a DCJTB-doped structure of ITO/TcTa/BPNA/BPNA: DCJTB (0.5%)/BPNA/BCP/Alq3/LiF/Al was fabricated in comparison with the non-doped device. The device emitted bright white light with the CIE coordinates of (0.33, 0.29) at 10 V and a maximum luminance of 7723 cd/㎡ at 14.8 V.

Research on the Cutting Performances and Wear Mechanisms of TiAlCrN Coated Tools during Dry Turning

Hui-Bo He,Hua-Ying Li,Xian-Ying Zhang,Qi-Bin Yue,Jun Zhang,Lu Ma,Yuan-ming Li 한국정밀공학회 2019 International Journal of Precision Engineering and Vol.20 No.2

Physical vapour deposition technique was used to deposit TiAlCrN coatings on the YT15 tungsten carbide inserts. The dry turning tests of 20CrMo steel were carried out to evaluate performances of TiAlCrN coated and uncoated tools on the CA6140A lathe. The effect of the two kinds of tools on cutting forces, cutting temperature, surface roughness and tool wear had been investigated to assess the performance of TiAlCrN coated tools. The results showed that the cutting force and cutting temperature obtained by TiAlCrN coated tools were decreased and the TiACrN coated tools produced a better surface finish in comparison with the uncoated tools. The TiAlCrN coated tools yield working life about 45 min, which was two times of that for uncoated tools. The wear mechanisms of the TiAlCrN coated tools were mainly oxidation and boundary wear, accompanied with diffusion wear.

Spinal Dural Arteriovenous Fistula: Imaging Features and Its Mimics

Ying Jeng,David Yen-Ting Chen,Hui-Ling Hsu,Yen-Lin Huang,Chi-Jen Chen,Ying-Chi Tseng 대한영상의학회 2015 Korean Journal of Radiology Vol.16 No.5

Spinal dural arteriovenous fistula (SDAVF) is the most common spinal vascular malformation, however it is still rare and underdiagnosed. Magnetic resonance imaging findings such as spinal cord edema and dilated and tortuous perimedullary veins play a pivotal role in the confirmation of the diagnosis. However, spinal angiography remains the gold standard in the diagnosis of SDAVF. Classic angiographic findings of SDAVF are early filling of radicular veins, delayed venous return, and an extensive network of dilated perimedullary venous plexus. A series of angiograms of SDAVF at different locations along the spinal column, and mimics of serpentine perimedullary venous plexus on MR images, are demonstrated. Thorough knowledge of SDAVF aids correct diagnosis and prevents irreversible complications.

Impact of the Silicon-nitride Passivation Film Thickness on the Characteristics of InAlAs/InGaAs InP-based HEMTs

Ying-Hui Zhong,Jie Yang,Xin-Jian Li,Peng Ding,Zhi Jin 한국물리학회 2015 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.66 No.6

In this research, the DC and RF characteristics for our own InAlAs/InGaAs InP-based highelectron-mobility transistors (HEMTs) with 0-nm, 50-nm, and 200-nm silicon-nitride (Si3N4) passivationfilms have been investigated comprehensively and systematically. With increasing Si3N4passivation film thickness, the device exhibits an apparent improvement in the output conductanceand a distinct drift of the pinch-off voltage toward a positive value. Especially, the device passivatedby using a 50-nm Si3N4 film demonstrates the highest extrinsic transconductance and channelcurrent. The appeared changes of the DC properties can be interpreted as due to the passivationinducedpositively-charged surface state increasing the sheet carrier density with the carrier mobilityand parasitic resistance of device being deteriorated by long-time high-stress-intensity ion bombardment. Additionally, the degradations of the current-gain cutoff frequency (fT ) and maximumoscillation frequency (fmax) can be attributed to the drastically-increased parasitic capacitance andresistance induced by the passivation process. This work will be of great importance in fabricatingInP HEMTs with high performances.

The most ideal interval between blastocyst biopsy and vitrification applied in preimplantation genetic screening (PGS)

( Hui-ying Low ),( Hsiu-hui Chen ),( Chun-chia Huang ),( Tsung-hsien Lee ),( Chung-i Chen ),( Lii-sheng Huang ),( Maw-sheng Lee ) 대한산부인과학회 2016 대한산부인과학회 학술대회 Vol.102 No.-

Study Question: To evaluate the most ideal interval between blastocyst biopsy and vitrification in preimplantation genetic screening (PGS). Study Design, Size, Duration: This is a retrospective study and total 224 patients underwent the PGS from 2012 Dec. to 2015 Mar. All of patients underwent blastocyst vitrification after biopsy and 1~2 euploid blastocyst for transfer after warming. The primary outcome measures were the implantation and pregnancy rates per PGS-frozen embryo transfer cycle. Materials, Setting, Methods: The blastocyst grading including grade 4, 5 and 6 (according to Gardner grading system) on day 5 or day 6 were selected for trophectoderm biopsy. All blastocyst underwent vitrification immediately (interval: 0.5 hour) or 1 to 7 hours after biopsy. At the time of vitrification the grade of blastocyst expansion was also recorded. All patients were divided into two groups according to the grade of expanded (Group1: ≤1/2 expansion (n=41), Group2: ≥3/4 expansion (n=183)). Furthermore, combined two factors including the interval and morphology of blastocyst after biopsy, all patients were further divided into interval 1 (<3 hours and ≤1/2 expansion) and interval 2 (≥3 hours and ≥3/4 expansion). The morphologically best euploid blastocyst(s) (1~2 embryos) was/were selected first for transfer on the next cycle. Main Results: Assessment morphology of blastocyst after biopsy in different interval, at 0.5 hour after biopsy, 100% blastocyst was non-expansion; at 1 hour after biopsy, only 17% blastocyst was 3/4 expansion or all-expansion; at 3 hours after biopsy, 86% blastocyst was 3/4 expansion or all-expansion and after 5.5 hours, 100% blastocyst was all-expansion or hatching. All blastocysts were survival (100%, 359/359) after warming. The mean of embryo transfer number between all groups were no significantly difference. The implantation rate in Group2 (63.4%) was significantly higher than that in Group1 (46.9%, p=0.014). The pregnancy rates in Group4 (73.8%) was sig-nificantly higher than that in Group1 (51.2%, p=0.004). The implantation and pregnancy rates in the group of embryo ≥3/4 expansion combined with ≥3 hours after biopsy (63.6%, 178/280; 73.8%, 127/172) were significantly higher than that in the group of ≤1/2 expansion with <3 hour (45.6, 26/57; 50.0%, 18/36; p=0.0113 and p=0.0056, respectively). Conclusion: The most ideal interval between biopsy and vitrification was least 3 hours and ≥3/4 expansion of blastocyst after biopsy could improve the implantation and pregnancy rates for PGS.

The Age-Related Orientational Changes of Human Semicircular Canals

Hui-Ying Lyu,Ke-Guang Chen,Dong-Ming Yin,Juan Hong,Lin Yang,Tian-yu Zhang,Peidong Dai 대한이비인후과학회 2016 Clinical and Experimental Otorhinolaryngology Vol.9 No.2

Objectives. Some changes are found in the labyrinth anatomy during postnatal development. Although the spatial orientation of semicircular canals was thought to be stable after birth, we investigated the age-related orientational changes of human semicircular canals during development. Methods. We retrospectively studied the computed tomography (CT) images of both ears of 76 subjects ranged from 1 to 70 years old. They were divided into 4 groups: group A (1–6 years), group B (7–12 years), group C (13–18 years), and group D (>18 years). The anatomical landmarks of the inner ear structures were determined from CT images. Their coordinates were imported into MATLAB software for calculating the semicircular canals orientation, angles between semicircular canal planes and the jugular bulb (JB) position. Differences between age groups were analyzed using multivariate statistics. Relationships between variables were analyzed using Pearson analysis. Results. The angle between the anterior semicircular canal plane and the coronal plane, and the angle between the horizontal semicircular canal plane and the coronal plane were smaller in group D than those in group A (P<0.05). The JB position, especially the anteroposterior position of right JB, correlated to the semicircular canals orientation (P<0.05). However, no statistically significant differences in the angles between ipsilateral canal planes among different age groups were found. Conclusion. The semicircular canals had tendencies to tilt anteriorly simultaneously as a whole with age. The JB position correlated to the spatial arrangement of semicircular canals, especially the right JB. Our calculation method helps detect developmental and pathological changes in vestibular anatomy.

Regulatory Role of SFN Gene in Hepatocellular Carcinoma and Its Mechanism

Ying Hui,Hao Zeng,Yi Feng,Wenzhou Qin,Peisheng Chen,Lifang Huang,Wenfu Zhong,Liwen Lin,Hui Lv,Xue Qin 한국생물공학회 2021 Biotechnology and Bioprocess Engineering Vol.26 No.3

Purpose: This study aims to explore the differential expression of SFN gene and its regulatory role in different hepatocarcinoma cells, and the impact on hepatocarcinoma. Materials and Methods: High and low SFN expression cells were screened by qRT-PCR and western blotting methods. SFN over expression and interference vectors were constructed. Cell viability was detected by CCK8 kit, cell cycle and apoptosis were detected by flow cytometry. Cell invasion and migration were detected. CCNB1 and CDK1 expression levels were detected by qRT-PCR and Western blotting methods. Results: The high SFN expression BEL7402 cells and the low SFN expression Hep3B cells were screened from Hep3B, HepG2, and BEL7402 cells. The activity of Hep3B cells overexpression vector SFNpcDNA3.1(+) decreased and apoptosis increased, the ratio of G0/G1 decreased and the ratio of S phase increased. The activity of BEL7402 cells transfected with SFN siRNA decreased and apoptosis increased, the ratio of G0/G1 decreased and the ratio of G2/M increased. Interference and overexpression vectors have little effect on the invasion and migration of the two cells. The expression of CDK1 in Hep3B cells decreased significantly, the expression of CDK1 and CCNB1 in BEL7402 cells increased significantly. Conclusions: The differentially expressed SFN gene can regulate the growth of the two hepatocarcinoma cells, high expression of SFN gene can inhibit their growth. The mechanism may be achieved by regulating CCNB1 and CDK1 expression.