http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Chi-Jung Chang,Yu-Chieh Kao,Jem-Kun Chen,Hao-Cheng Zhang,Shu-Yii Wu 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.124 No.-
Since a large amount of waste polyester-cotton blended textiles can cause environmental pollution problems,it is crucial to develop sustainable technology for recycling textile wastes and producing valueaddedproducts. In this research, regenerated cellulose and polyester were obtained from thepolyester-cotton jean wastes by a sustainable process through the selective dissolving of cellulose fibersusing an ionic liquid (ILs), 1-butyl-3-methylimidazolium chloride ([Bmim]Cl). We developed an environmentallybenign decoloration approach without the bleaching or leaching processes. Instead, cellulose,polyester, and ILs were recycled from the selective degradation of indigo carmine (IC) or indigo dye inthe dye/ILs solution using the Bi11VO19 photocatalyst without impairing the dissolution capability ofILs. The selective decoloration of dye solution extracted from waste textiles involves interactions amongphotocatalysts, colorants, fibers, and media (ILs). The changes of dye and ILs molecules during the photocatalysisreaction were analyzed. FTIR and Raman spectra of the recycled ILs reveal that the chemicalstructure of ILs remains unchanged after the photocatalytic decoloration process. The ILs and photocatalystscan be recycled for repeated production of regenerated cellulose from waste jeans.
Chien-Chi Kao,Yung-Chang Lai,Jung Pei,Chih-Wei Chang,Fei-Hua Kuo,Jin-Yuan Shun 한국통신학회 2020 한국통신학회 APNOMS Vol.2020 No.09
In recent years, IP surveillance networks are expected to enable various practical applications, such as finding suspects, monitoring pedestrians, and securing societies (e.g., securing a city, a company and a data center). With these applications, IP surveillance network is regarded as one of the potential technologies toward developing smart cities. To support the concept of IP surveillance networks, automatic attribute recognition systems have emerged as a promising intelligent management system. To automatically recognize attributes of pedestrians (e.g., gender and clothing), we apply deep convolutional neural networks (CNNs), and the main contributions of this paper are threefold: (1) we proposed a practical system architecture for intelligent management of surveillance networks; (2) we implemented different deep CNNs, and an ensemble-learning method that leverages these multiple deep-learning models; (3) we evaluated the models using the real data of IP surveillance networks.
Im, Junhyuck,Seoung, Donghoon,Hwang, Gil Chan,Jun, Jong Won,Jhung, Sung Hwa,Kao, Chi-Chang,Vogt, Thomas,Lee, Yongjae American Chemical Society 2016 Chemistry of materials Vol.28 No.15
<P>Pressure-dependent structural and chemical changes of the metal organic framework (MOF) compound MIL-47(V) have been investigated up to 3 GPa using different pore-penetrating liquids as pressure transmitting media (PTM). We find that at 0.3(1) GPa the terephthalic acid (TPA) template molecules located in the narrow channels of the as synthesized MIL-47(V) are selectively replaced by methanol molecules from a methanol ethanol water mixture and form a methanol inclusion complex. Further pressure increase leads to a gradual narrowing of the channels up to 1.9(1) GPa, where a second irreversible insertion of methanol molecules leads to more methanol molecules being inserted into the pores. After pressure release methanol molecules remain within the pores and can be removed only after heating to 400 degrees C. In contrast, when MIL-47(V) is compressed in water, a reversible replacement of the TPA by H2O molecules takes place near 1 GPa. The observed structural and chemical changes observed in MIL-47(V) demonstrate unique high pressure chemistry depending on the size and type of molecules present in the liquid PTM. This allows postsynthetic nonthermal pressure-induced removal and insertion of organic molecules in MOFs forming novel and stable phases at ambient conditions.</P>
Po-Ching Kao,Shu-I Lin,Chin-Chih Chang,Ching-Wen Huang,Chien-Chi Liu 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.60 No.10
A cathode buffer layer of lithium hydroxide (LiOH) was used to improve the electro-optical properties of organic light-emitting diodes (OLEDs). LiOH layers with various thicknesses were prepared by thermally evaporating LiOH powders. When a 1-nm-thick LiOH layer was inserted between the aluminum (Al) cathodes and the tris(8-hydroxyquinolinato)aluminum (Alq3) electrontransporting layers, device properties such as the turn-on voltage, the maximum luminance, and the device efficiency were improved, becoming better than those of the device with a LiF buffer layer. The surface of the Alq3 film became smoother after the LiOH layer had been deposited. Ultraviolet photoelectron spectroscopy results show that the reaction between LiOH and Alq3 results in an n-type doping effect, which moves the Fermi level close to the lowest unoccupied molecular orbital (LUMO) of Alq3. Thus, the electron-injection efficiency was enhanced due to a lower electron injection barrier, which improved the charge carrier balance in the OLEDs and led to a better device efficiency.
( Seung Woon Paik ),( Chi-jen Chu ),( Yan Luo ),( Kwang-hyub Han ),( Jia-horng Kao ),( Jeong Heo ),( Cheng-yuan Peng ),( Yoon Jun Kim ),( Ting-tsung Chang ),( Young-suk Lim ),( Ming Lung Yu ),( Linda 대한간학회 2016 춘·추계 학술대회 (KASL) Vol.2016 No.1
Background: Chronic hepatitis C virus (HCV) infection is associated with development of complications including hepatocellular carcinoma, liver failure and cirrhosis. Patients with cirrhosis are historically more difficult to cure. In southeastern Asia, the most prevalent HCV genotype (GT) is GT1b. In western populations, the 3 direct-acting antiviral (3-DAA) regimen of ombitasvir (OBV), ritonavir-boosted paritaprevir (PTV/r; identified by AbbVie and Enanta) and dasabuvir (DSV) ± ribavirin (RBV) demonstrated sustained virologic response (SVR) at post-treatment week 12 (SVR12) rates of 99% in patients with GT1b infection and compensated cirrhosis regardless of prior treatment experience. The regimen, however, has not been investigated in southeastern Asian populations. The ONYX-II study is evaluating the efficacy and safety of this regimen in Asian patients with HCV GT1b infection and compensated cirrhosis. Methods: Treatment-naive and interferon-based therapy-experienced patients with HCV GT1b-infection and compensated cirrhosis were enrolled in South Korea, Taiwan, and China, and received 12 weeks of OBV/PTV/r (25 mg/150 mg/100 mg once daily) and DSV (250 mg twice daily) with RBV (weight-based). Patients will be followed for 48 weeks after the last dose of study drugs. The primary objectives are to compare the SVR12 rate to the known SVR rate of telaprevir + peg-interferon (IFN) + RBV therapy, and to assess the safety of OBV/PTV/r + DSV + RBV. Results: Twenty-one and 20 subjects were enrolled in South Korea and Taiwan, respectively. Of South Korean patients, 52% were male and 71% were treatment-experienced; of Taiwanese patients, 45% were male and 65% were treatment-experienced. Safety data and SVR at post-treatment week 4 (SVR4) will be available for presentation. Conclusions: The ONYX-II study evaluates the 3-DAA regimen of OBV/PTV/r + DSV with RBV for Asian patients with compensated cirrhosis and HCV GT1b infection. Resultant data may provide evidence for treatment guidelines for HCV GT1b in this population.
Yen-Yang Chen,Chen-Chi Wang,Ying-Cheng Lin,John Y Kao,Chun-Yi Chuang,Yung-An Tsou,Ja-Chih Fu,Sheng-Shun Yang,Chi-Sen Chang,Han-Chung Lien 대한소화기 기능성질환∙운동학회 2023 Journal of Neurogastroenterology and Motility (JNM Vol.29 No.1
Background/AimsHypopharyngeal multichannel intraluminal impedance-pH (HMII-pH) technology incorporating 2 trans-upper esophageal sphincter impedance channels has been developed to detect pharyngeal reflux. We used the HMII-pH technique to validate the candidate pharyngeal acid reflux (PAR) episodes based on the dual-pH tracings and determined the interobserver reproducibility. MethodsWe conducted a cross-sectional study in tertiary centers in Taiwan. Ninety patients with suspected laryngopharyngeal reflux and 28 healthy volunteers underwent HMII-pH test when off acid suppressants. Candidate PAR episodes were characterized by pharyngeal pH drops of at least 2 units and reaching a nadir pH of 5 within 30 seconds during esophageal acidification. Two experts manually independently identified candidate PAR episodes based on the dual-pH tracings. By reviewing the HMII-pH tracings, HMII-pH-proven PAR episodes were subsequently confirmed. The consensus reviews of HMII-pH-proven PAR episodes were considered to be the reference standard diagnosis. The interobserver reproducibility was assessed. ResultsA total of 105 candidate PAR episodes were identified. Among them 84 (80.0%; 95% CI, 71.0-87.0%) were HMII-pH-proven PAR episodes (82 in 16 patients and 2 in 1 healthy subject). Patients tended to have more HMII-pH-proven PAR episodes than healthy controls (median and percentile values [25th, 75th, and 95th percentiles]: 0 [0, 0, 3] vs 0 [0, 0, 0], P = 0.067). The concordance rate in diagnosing HMII-pH-proven PAR episodes between 2 independent observers was 92.2%. ConclusionOur preliminary data showed that 80.0% (71.0-87.0%) of the proposed candidate PAR episodes were HMII-pH-proven PAR episodes, among which the interobserver reproducibility was good.
Seoung, Donghoon,Lee, Yongmoon,Kao, Chi-Chang,Vogt, Thomas,Lee, Yongjae American Chemical Society 2015 Chemistry of materials Vol.27 No.11
<P>In situ high pressure X-ray powder diffraction studies of natrolite (NAT) containing the divalent extra-framework cations (EFC) Sr<SUP>2+</SUP>, Ca<SUP>2+</SUP>, Pb<SUP>2+</SUP>, and Cd<SUP>2+</SUP> reveal that they can be superhydrated in the presence of water. In the case of Ca-NAT, Sr-NAT, and Pb-NAT pressure-induced hydration (PIH) inserts 40 H<SUB>2</SUB>O/unit cell into the zeolite compared to 32 in superhydrated natrolites containing monovalent EFC. Cd-NAT is superhydrated in one step to a zeolite containing 32 H<SUB>2</SUB>O/unit cell. PIH of Ca-NAT and Sr-NAT occurs in two steps. During PIH of Pb-NAT three distinct steps have been observed. The excess H<SUB>2</SUB>O in natrolites with divalent EFC are accommodated on sites no longer required for charge compensation. Two distinct families with ordered and disordered EFC–water topologies have been found. Our work established the importance of both size and charge of the EFC in PIH.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/cmatex/2015/cmatex.2015.27.issue-11/acs.chemmater.5b00506/production/images/medium/cm-2015-00506p_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/cm5b00506'>ACS Electronic Supporting Info</A></P>