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Chih-Peng Lin,Chih-Hung Chu,Shaw-Bing Wen,Yun-Hwei Shen 한양대학교 세라믹연구소 2011 Journal of Ceramic Processing Research Vol.12 No.5
AlN samples doped with sub-micron Y2O3 and CaO powders as sintering additives obtained using the micro hot-pressed (MHPed) sintering method in a MoSi2 heating element furnace were investigated. The minor amounts of secondary phases were identified as Al5Y3O12, CaYAl3O7, and CaAl4O7, which are related to the low sintering temperature as well as the removal of oxygen-related defects in the system. Relative densities of over 96% of the theoretical value were obtained after sintering at 1600 oC for 8 h, indicating that an adequate amount of additives and the use of the micro hot-pressed (MHPed) sintering process help improve the densification and thermal conductivity of AlN ceramics. The high thermal conductivity of 130Wm−1K−1was attributed to the purification of the AlN lattice, the elimination of some secondary phases, and the grain boundary phase distribution.
( Ming-Lung Yu ),( Chi-Yi Chen ),( Kuo-Chih Tseng ),( Ching-Chu Lo ),( Pin-Nan Cheng ),( Cheng-Yuan Peng ),( Ming-Jong Bair ),( Chih-Lang Lin ),( Chi-Ming Tai ),( Chi-Chieh Yang ),( Chih-Wen Lin ),( C 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: TASL HCV Registry (TACR) is a nationwide registry program organized and supervised by Taiwan Association for the Study of the Liver (TASL), which aims to setup the database and biobank of patients with chronic hepatitis C (CHC) in Taiwan. The present study aimed to evaluate the treatment outcome of sofosbuvir (SOF)/ledipasvir (LDV) in Taiwanese CHC patients in TACR. Methods: By May 2020, 19 tertiary hospitals, 23 community hospitals and one primary care clinic join the TACR program. The baseline characteristics, prior liver and non-liver related medical history, DAA regimens, laboratory results, treatment course and outcome were recorded. The primary objective was sustained virological response, defined as undetectable HCV RNA 3 months after end-of-treatment (SVR12). Results: A total of 4742 SOF/LDV+ ribavirin treated CHC patients with available SVR12 data from 39 sites were enrolled in the current analysis. The mean age was 61.3 years, and female accounted for 54.8% of the population. The dominant viral genotypes were GT1b (52.6%) and GT2 (35.6%). 1354 (28.6%) patients had liver cirrhosis, including 156 (3.3%) with liver decompensation, 552 (11.6%) had preexisting hepatocellular carcinoma (HCC) before DAAs treatment and 413 (8.7%) had hepatitis B virus dual infections. The overall SVR12 rate was 98.5%, with 98.5%, 98.2%, 99.7% and 98.6% in treatment- naïve non-cirrhotics, treatment-naïve cirrhotics, treatment- experienced non-cirrhotics and treatment-experienced cirrhotics patients, respectively. While patients were stratified by HCV genotype, the SVR12 was 98.5%, 98.4% and 98.5% among those with GT1, GT2 and GT6 infection, respectively. The strongest factor independent associated with treatment failure was DAA adherence < 60% (odds ratio [OR]/95% confidence intervals [CI]: 125.4/25.7-612.4, P<0.0001), followed by active HCC (OR/CI: 6.20/2.57-14.97, P<0.0001), HIV co-infection (OR/CI: 3.01/1.14-7.92, P=0.026), and male gender (OR/ CI: 1.85/1.09-3.13, P=0.023). The eGFR decreased significantly at the end of treatment (EOT) (89.3 ml/min/1.73㎡ vs. 93.2 ml/min/1.73㎡, P< 0.001) and remained stable 3 months after EOT (89.3 ml/min/1.73㎡). However, the decreased eGFR was observed only in patients whose baseline eGFR > 90 ml/ min/1.73㎡. Instead, patients with chronic kidney diseases whose pretreatment eGFR < 60 ml/min/1.73㎡ had improved eGFR after SOF/LDV. Conclusions: SOF/LDV is highly effective in treating CHC patients in real-world setting of Taiwan. The satisfactory result could be explicitly generalized to patients with different viral genotypes and liver disease severities.
Lin Min Jung,Chang Shen Chang,Chen Tzu Jou,Lin Wei Chih,Peng Shao Yu,Lee Tzu Tai 아세아·태평양축산학회 2020 Animal Bioscience Vol.33 No.9
Objective: The purpose of this study was to investigate whether goose growth and feather characteristics are influenced by their line and feeding surroundings, inclusive of floor materials and types, since there are no reports regarding these factors. Methods: The 240 White Roman geese which were hatched and sex identified came from 3 commercial goose farms. They were randomly distributed to 24 pens depending on a completely random design. The study continued for 13 weeks and included 3 lines of commercial geese and 2 floor types (cement strip floor [CSF] or cement floor [CF]). Results: The day one gosling weight from A farm was lower than other two farms (96 g vs 107 and 115 g; p<0.001). Afterwards, the body weight, back length, keel length, chest girth and main wing feather length among 3 farms showed no significance difference prior to 12 weeks. The CF group showed heavier body weight, shorter back length, longer keel length, shorter chest girth and shorter main wing feather length than the CSF group prior to 12 weeks. The down weight in the CF was heavier than the CSF group (57.1 g vs 41.8 g; p<0.01) prior to 13 weeks. Conclusion: The body weight showed the positive relations for dry feather weight (r = 0.59), down weight (r = 0.69), percent of the down weight of live body weight prior to 13 weeks (r = 0.61).
Effects of Additives of CaO and Rare-Earth Oxides on the Sintering Behavior of AlN Ceramics
Chih-Hung Chu,Yun-Hwei Shen,Chih-Peng Lin,Shaw-Bing Wen 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.5
The effect of additives of CaO plus three different rare-earth oxides (Y, Sm and Gd, separately) on the sintering behavior of AlN ceramics has been evaluated at 1700℃ by using a MoSi2 heater and ambient atmosphere. The results of density measurements show that the atomic weight of the rare-earth element may substantially affect the apparent density of the sintered AlN specimen due to the kinetics of atomic diffusion during sintering. The optimum results of this study show that these additives are effective in obtaining an apparent density of 3.26 g/cm3 (approaching a 100 % theoretical density of AlN). The Vicker's hardness of the sintered AlN can reach a high value of 1310 kg/mm2 and an apparent density of 3.34 g/cm3. A longer soaking time of between 3 and 5 h is necessary to practically eliminate the minor oxide phases. The effect of additives of CaO plus three different rare-earth oxides (Y, Sm and Gd, separately) on the sintering behavior of AlN ceramics has been evaluated at 1700℃ by using a MoSi2 heater and ambient atmosphere. The results of density measurements show that the atomic weight of the rare-earth element may substantially affect the apparent density of the sintered AlN specimen due to the kinetics of atomic diffusion during sintering. The optimum results of this study show that these additives are effective in obtaining an apparent density of 3.26 g/cm3 (approaching a 100 % theoretical density of AlN). The Vicker's hardness of the sintered AlN can reach a high value of 1310 kg/mm2 and an apparent density of 3.34 g/cm3. A longer soaking time of between 3 and 5 h is necessary to practically eliminate the minor oxide phases.
Wu, Chun-Wei,Lin, Kuan-Hung,Lee, Ming-Chih,Peng, Yung-Liang,Chou, Ting-Yi,Chang, Yu-Sen Korean Society of Horticultural Science 2015 원예과학기술지 Vol.33 No.6
The objective of this study was to predict the timing of nitrogen (N) demand through analyzing chlorophyll fluorescence (ChlF), soil-plant analysis development (SPAD), and normalized difference vegetation index (NDVI), which are positively correlated with foliar N concentration in star cluster (Pentas lanceolata). The plants were grown in potting soil under optimal conditions for 30 d, followed by weekly irrigation with five concentrations (0, 4, 8, 16, and 24 mM) of N for an additional 30 d. These five N application levels corresponded to leaf N concentrations of 2.62, 3.48, 4.00, 4.23, and 4.69%, respectively. We measured 13 morphological and physiological parameters, as well as the responses of these parameters to various N-fertilizer treatments. The general increases in Dickson's quality index (DQI), above-ground dry weight (DW), total DW, flowering rate, ${\Delta}F/Fm$', and qP in response to treatment with 0 to 8 mM N were similar to those of SPAD, NDVI, and Fv/Fm. Consistent and strong correlations ($R^2$= 0.60 to 0.85) were observed between leaf N concentration (%) and SPAD, NDVI, ${\Delta}F/Fm$', and above-ground DW. Validation of leaf S PAD, NDVI, and ${\Delta}F/Fm$' revealed that these vegetation indices are accurate predictors of leaf N concentration that can be used for non-destructive estimation of the proper timing for N-solution irrigation of P. lanceolata. Moreover, irrigation with 8 mM N-fertilizer i s recommended w hen leaf N concentration, SPAD, NVDI, and ${\Delta}F/Fm$' ratios are reduced from their saturation values of 4.00, 50.68, 0.64, and 0.137%, respectively.
Chun-Wei Wu,Kuan-Hung Lin,Ming-Chih Lee,Yung-Liang Peng,Ting-Yi Chou,Yu-Sen Chang 한국원예학회 2015 원예과학기술지 Vol.33 No.6
The objective of this study was to predict the timing of nitrogen (N) demand through analyzing chlorophyll fluorescence (ChlF), soil-plant analysis development (SPAD), and normalized difference vegetation index (NDVI), which are positively correlated with foliar N concentration in star cluster (Pentas lanceolata). The plants were grown in potting soil under optimal conditions for 30 d, followed by weekly irrigation with five concentrations (0, 4, 8, 16, and 24 mM) of N for an additional 30 d. These five N application levels corresponded to leaf N concentrations of 2.62, 3.48, 4.00, 4.23, and 4.69%, respectively. We measured 13 morphological and physiological parameters, as well as the responses of these parameters to various N-fertilizer treatments. The general increases in Dickson’s quality index (DQI), above-ground dry weight (DW), total DW, flowering rate, △F/Fm’, and qP in response to t reatment with 0 to 8 mM N were similar to those of SPAD, NDVI, and Fv/Fm. Consistent and s trong correlations (R² = 0.60 to 0.85) were observed between leaf N concentration (%) and SPAD, NDVI, △F/Fm’, and above-ground DW. Validation of leaf S PAD, NDVI, and △F/Fm’ revealed that these vegetation indices are accurate predictors of leaf N concentration that can be used for non-destructive estimation of the proper timing for N-solution irrigation of P. lanceolata. Moreover, irrigation with 8 mM N-fertilizer i s recommended w hen leaf N concentration, SPAD, NVDI, and △F/Fm’ ratios are reduced from their saturation values of 4.00, 50.68, 0.64, and 0.137%, respectively.
Ultrasound imaging for inguinal hernia: a pictorial review
Wei-Ting Wu,Ke-Vin Chang,Chih-Peng Lin,Chi-Chuan Yeh,Özçakar Levent 대한초음파의학회 2022 ULTRASONOGRAPHY Vol.41 No.3
Inguinal hernia is the most prevalent type of abdominal wall hernia. Indirect inguinal hernia is twice as common as direct inguinal hernia. Computed tomography and magnetic resonance imaging can be used to evaluate inguinal hernia, but these modalities are greatly limited by their cost and availability. Ultrasonography has emerged as the most convenient imaging tool for diagnosing inguinal hernia due to its advantages, such as portability and absence of radiation. The present pictorial review presents an overview on the use of ultrasonography in the evaluation of inguinal hernia with a particular emphasis on the regional anatomy, relevant scanning tips, identification of subtypes, postoperative follow-up, and diagnosis of pathologies mimicking inguinal hernia.