Photodetectors based on reduced graphene oxide (rGO) have attracted much attention owing to their simple and low‐cost fabrication process. However, the aggregation and defects of rGO flakes still ...limit the performance of rGO photodetectors. Controlling the composition of rGO has become a vital factor for its prospective applications. For example, the interconnection between rGO and polymers for modified morphologies of rGO films leads to an enhanced performance of devices. In this work, a practical approach to engineer surface uniformity and enhance the performance of a photodetector by modifying the rGO film with hydrophilic polymers poly(vinyl alcohol) (PVA) is reported. Compared with the rGO photodetector, the on/off ratio for the PVA/rGO photodetector shows 3.5 times improvement, and the detectivity shows 53% enhancement even when the photodetector is operated at a low bias of 0.3 V. This study provides an effective route to realize PVA/rGO photodetectors with a low‐power operation which shows promising opportunities for the future development of green systems.
A practical approach to enhance the performance of a reduced graphene oxide (rGO) photodetector by modifying the rGO film with poly(vinyl alcohol) (PVA) is reported. Compared with the rGO photodetector, the on/off ratio for the PVA/rGO photodetector shows 3.5 times improvement, and the detectivity shows 53% enhancement at a low operating bias of 0.3 V.
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BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
First synthesis of C2-symmetric chiral O,N,N,O-tetradentate 2,2-bipyridyldiolpropane ligands is described. The Mukaiyama–Michael reaction was applied as an important reaction for the synthesis of ...2,2-bipyridylpropane 9. Among the ligands synthesized, ligand 11 exhibits excellent chiral induction (up to 97% ee) in diethylzinc addition to various aldehydes. The use of additional Lewis acid such as Ti(OiPr)4 in diethylzinc addition reaction is not required for the present catalytic system.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
碩士
大葉大學
設計暨藝術學院碩士班
103
Chinese culture is well-known for courtesy demands reciprocity. As a result, this research discusses the gift packing design as well as the the buying behavior and preferences. ...Therefore, this research would focus on the preference of consumer for papercutting gift packing design and analysis.
Through the internet surveys have been conducted. The conclusion with 10 of the survey is as following:
1. Gift packing is quite popularized by the most of the markets.
2. Gift packing is easily standing out comparing with other packing form.
3. Customers agree with that gift packing is the most recognized product in the various brands.
4. Customers agree with that gift packing could fully show the distinguishing feature and the style of the product.
5. Papercutting gift packing design could have the customers increase the interest and pay more attention to the product itself.
6. More customers would prefer to choose the papercutting gift packing when they are doing shopping.
7. The foreign design
碩士
正修科技大學
化工與材料工程研究所
101
In this study, some kinds of monomer films were plated on the grapheme by the electrochemical polymerization , such as aniline , pyrrole , indole and 5-nitro-indole , ...respectively , forming a thin film for analysis. The polymer films were formed in the aqueous and organic phase solution . The properties of this polymer films were investigated by the cyclic voltammetry (CV) , Fourier transform infrared spectroscopy (FT-IR) , thermal gravimetric analyzer (TGA) , scanning electron microscopy (SEM) , differential scanning calorimetry (DSC) and charge-discharge test .
SEM images showed the coralline structure of the polyaniline , granular accumulation structure of the polypyrrole and aniline-pyrrole copolymer , flaky accumulation structure of the poly 5-nitro-indole and 5-nitro-indole-indole copolymer . However , after charge and discharge the surface of the pole piece will show significantly larger cracks and variable number of phenomena , which may be due to the surface charge and discha
The industry of ornamental fish has been developed for more than 50 years in Taiwan. In 1986, through the artificial cultivation of the blood parrot (Cichlasoma citrinellum × Cichlasoma synspilum), ...the industry of aquarium fish reached to the peak in Taiwan. After the African Cichlids was introduced from three major freshwater lakes in Africa, it caused a sensation on the market. Then fluorescent fish and crystal shrimps were introduced, so far showing vigorous development of the aquarium market in Taiwan. The results of the spatial analysis show the highest density of the aquarium in urban area. The cluster spatial pattern was identified by global autocorrelation analysis, including Average Nearest Neighbor and Global Moran's I. Besides, after the stock market crash in 1980, the aquarium industry experienced a serious setback, but it also indirectly led to the trend of industrial management transformation from traditional aquarium to pet shops combining two types of cats and dogs pet aquarium.
碩士
國立臺灣科技大學
應用外語系
102
Vocabulary learning has been monotonous especially for learners in vocational high schools. For example, it is a challenging task to find an appropriate wordlist with vocabulary ...size as the reference for both instructors and students. Therefore, the aim of this study intends to explore (1) the essential wordlist to have a clear picture about what vocabulary and its coverage should be taught and learned, (2) the effects of Data-Driven Learning (DDL) integrated in vocabulary teaching, and (3) the attitude towards DDL in language learning. This study uses the WordSmith Tools 5.0 and Micorsoft Office Excel 2007 to sort out the high-frequency and overlapping words extracted from three test banks based on the Entrance Exam of Technological and Vocational Education Joint College during the past decade. DDL has been integrated into the vocabulary teaching to motivate learners to explore the grammar rules and word usages on their own. It is expected to enhance their motivation to learn vocabulary. The current results indicate that the learners have positive attitudes towards DDL. Students recognized that it is helpful if a corpus is introduced in classes, revealing that the corpus is more useful than traditional dictionaries. The findings strongly suggest that DDL is effective in language teaching and learning.
Osteoporosis is the second most common epidemiologic disease in the aging population worldwide. Previous studies have found that frequent tea drinkers have higher bone mineral density and less hip ...fracture. We previously found that (-)-epigallocatechin gallate (EGCG) (20⁻100 µmol/L) significantly suppressed receptor activator of nuclear factor-kB ligand (RANKL)-induced osteoclastogenesis and pit formation via inhibiting NF-κB transcriptional activity and nuclear transport of NF-κB in RAW 264.7 cells and murine primary bone marrow macrophage cells. The most important regulation in osteoclastogenesis is the receptor activator of nuclear factor-kB/RANKL/osteoprotegrin (RANK/RANKL/OPG) pathway. In this study, we used the coculture of RAW 264.7 cells and the feeder cells, ST2, to evaluate how EGCG regulated the RANK/RANKL/OPG pathway in RAW 264.7 cells and ST2 cells. We found EGCG decreased the RANKL/OPG ratio in both mRNA expression and secretory protein levels and eventually decreased osteoclastogenesis by TRAP (+) stain osteoclasts and TRAP activity at low concentrations-1 and 10 µmol/L-via the RANK/RANKL/OPG pathway. The effective concentration can be easily achieved in daily tea consumption. Taken together, our results implicate that EGCG could be an important nutrient in modulating bone resorption.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
TRIM5α is a host anti-retroviral restriction factor that destroys human immunodeficiency virus (HIV) virions and triggers innate immune signaling. TRIM5α also mediates the autophagic degradation of ...target proteins via TRIMosome formation. We previously showed that TRIM5α promotes Epstein-Barr virus (EBV) Rta ubiquitination and attenuates EBV lytic progression. In this study, we sought to elucidate whether TRIM5α can interact with and induce the degradation of EBV capsid proteins. Glutathione S-transferase (GST) pulldown and immunoprecipitation assays were conducted to identify interacting proteins, and mutants were generated to investigate key binding domains and ubiquitination sites. Results showed that TRIM5α binds directly with BORF1, an EBV capsid protein with a nuclear localization signal (NLS) that enables the transport of EBV capsid proteins into the host nucleus to facilitate capsid assembly. TRIM5α promotes BORF1 ubiquitination, which requires the surface patch region in the TRIM5α PRY/SPRY domain. TRIM5α expression also decreases the stability of BORF1(6KR), a mutant with all lysine residues mutated to arginine. However, chloroquine treatment restores the stability of BORF1(6KR), suggesting that TRIM5α destabilizes BORF1 via direct recognition of its substrate for autophagic degradation. These results reveal novel insights into the antiviral impact of TRIM5α beyond retroviruses.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
Glioblastoma multiforme (GBM) is the most common and malignant brain tumor with poor prognosis. The heterogeneous and aggressive nature of GBMs increases the difficulty of current standard treatment. ...The presence of GBM stem cells and the blood brain barrier (BBB) further contribute to the most important compromise of chemotherapy and radiation therapy. Current suggestions to optimize GBM patients' outcomes favor controlled targeted delivery of chemotherapeutic agents to GBM cells through the BBB using nanoparticles and monoclonal antibodies. Nanotechnology and nanocarrier-based drug delivery have recently gained attention due to the characteristics of biosafety, sustained drug release, increased solubility, and enhanced drug bioactivity and BBB penetrability. In this review, we focused on recently developed nanoparticles and emerging strategies using nanocarriers for the treatment of GBMs. Current studies using nanoparticles or nanocarrier-based drug delivery system for treatment of GBMs in clinical trials, as well as the advantages and limitations, were also reviewed.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
The incidence of obesity and its comorbidities, such as insulin resistance and type II diabetes, are increasing dramatically, perhaps caused by the change in the fatty acid composition of common ...human diets. Adipose tissue plays a role as the major energy reservoir in the body. An excess of adipose mass accumulation caused by chronic positive energy balance results in obesity. The n-3 polyunsaturated fatty acids (n-3 PUFA), DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) exert numerous beneficial effects to maintain physiological homeostasis. In the current review, the physiology of n-3 PUFA effects in the body is delineated from studies conducted in both human and animal experiments. Although mechanistic studies in human are limited, numerous studies conducted in animals and models in vitro provide potential molecular mechanisms of the effects of these fatty acids. Three aspects of n-3 PUFA in adipocyte regulation are discussed: (1) lipid metabolism, including adipocyte differentiation, lipolysis and lipogenesis; (2) energy expenditure, such as mitochondrial and peroxisomal fatty acid β-oxidation; and (3) inflammation, including adipokines and specialized pro-resolving lipid mediators. Additionally, the mechanisms by which n-3 PUFA regulate gene expression are highlighted. The beneficial effects of n-3 PUFA may help to reduce the incidence of obesity and its comorbidities.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
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