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      • The Improvement of the Opacity and Printing Strength of Fancy Paper Overlaid Plywood

        LAN-SHENG KUO,YUAN-SHING PERNG,EUGENE I-CHEN WANG,CHEN-FA YEN,TSUEN-HAN KAO 한국펄프·종이공학회 2006 한국펄프종이학회 기타 간행물 Vol.- No.-

        The purpose of this study is to investigate the opacity and printing strength of MG paper overlaid plywood. The printing strength of ink on MG paper can be evaluated effectively by a formula E<SUP>*2</SUP> = [(L<SUP>*</SUP>)<SUP>2</SUP> + (a<SUP>*</SUP>)<SUP>2</SUP> + (b<SUP>*</SUP>)<SUP>2</SUP>]<SUP>1/2</SUP> that we proposed. Higher E value indicates good printing strength of ink-on-paper. We also assess the real color of translucent printed MG paper with a formula CIE △E<SUP>*</SUP> (color difference between a pile of same paper to be opaque and fancy paper laminated board). In addition, the color difference on paper surface caused by the color of wood-based board (bottom) can be evaluated by a formula of Pc. No. Generally, an acceptable appearance quality of fancy boards is △E<SUP>*</SUP> < 2.0 and small Pc.No. value. The experimental results showed that Japan-made MG papers ?J1, J2 and J3 have better printing strength and gloss than that of Taiwan-made paper (T1). The reason for this was that Taiwan-made paper has poor printing strength and low gloss, which might be correlated to the fiber compositions in paper. Higher printing strength can be seen for short fiber containing handsheets when comparing to that of handsheets. Nonetheless, low-freeness sheets gives better printing strength than that of high-freeness sheets. High-opacity MG paper gives good opacifying effect to the fancy paper laminated wood-based boards. Comparing the surface color of 2 kinds of fancy paper laminated boards, paperboard T1 laminated with high-opacity fancy paper showed slight color difference. The same results can be seen for ?? g/㎡ handsheets. Higher-opacity Acacia and Eucalyptus bleached sulfate pulps (short fiber) gives higher opacifying effect on the plywood when comparing to Northan pine and Radiata pine sulfate pulps(long fiber). The former ones also showed small color differences when comparing the color differences between the color of fancy paper and laminated paper board. Additionally, the color of bottom plywood can’t be shown through for the highopacify surface paper adhered to. Besides, the PC No of the base paper laminated board is small as well. Apparently, we can add colorants to the binders for the manufacture of various handsheets (30 g/㎡) with various pulp mix ratios to increase the opacity of paperboards to certain extents. When we using yellow and brown binders in paper laminated board, the color difference between Acacia and Eucalyptus handsheets overlaid boards decreasing to 2.0 (acceptable △E<SUP>*</SUP>< 2.0, hard to discern), but not much improvement for Northern and Radiata pines. Definitely, show-through defects can be discernible for lower opacity papers. In general, admirable printing strength of fancy paper by which glued to plywood can be made with high-opacity paper and colored binders techniques.

      • KCI등재후보
      • KCI등재

        Sliding Mode-based Predictive Congestion Control in a Satellite Space Information Transmission Network

        Sheng Liu,Di Wu,Lan-Yong Zhang 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.8

        A satellite information transmission network is different from a ground network. The link distance between the satellite and the ground is large, and the communication between them is affected by the ionosphere. The ground congestion control algorithm cannot provide fast and stable responses to short-term burst flows. Therefore, aiming at the problem of large propagation delays and the complex environments of satellite-to-ground links, this paper investigates the Vegas congestion mechanism of the Space Communication Protocol Standard Transport Protocol (SCPS-TP), incorporates the interference affecting satellite communication links into a discrete model, combines interference estimation with controller design, proposes a reaching law and sliding mode-based predictive control algorithm for satellite communication, and suggests the stability of the introduced algorithm. The simulation results demonstrate the anti-jamming ability of the proposed algorithm for addressing short-term burst flows, and the prediction mechanism of the algorithm improves the utilization of satellite network bandwidth.

      • KCI등재

        Siderophore Production by Rhizosphere Biological Control Bacteria Brevibacillus brevis GZDF3 of Pinellia ternata and Its Antifungal Effects on Candida albicans

        Miaomiao Sheng,Huake Jia,Gongyou Zhang,Lina Zeng,Tingting Zhang,Yaohang Long,Jing Lan,Zuquan Hu,Zhu Zeng,Bing Wang,Hongmei Liu 한국미생물·생명공학회 2020 Journal of microbiology and biotechnology Vol.30 No.5

        Brevibacillus brevis GZDF3 is a gram-positive, plant growth-promoting rhizosphere bacterium (PGPR) isolated from the rhizosphere soil of Pinellia ternata (an important herb in traditional Chinese medicine). The GZDF3 strain produces certain active compounds, such as siderophores, which are the final metabolite products of non-ribosomal peptide synthetase (NRPS) and independent non-ribosomal peptide synthetase (NIS) activity. With the present study, we attempted to investigate the siderophore production characteristics and conditions of Bacillus sp. GZDF3. The antibacterial activity of the siderophores on pathogenic fungi was also investigated. Optimal conditions for the synthesis of siderophores were determined by single factor method, using sucrose 15 g/l, asparagine 2 g/l, 32°C, and 48 h. The optimized sucrose asparagine medium significantly increased the production of siderophores, from 27.09% to 54.99%. Moreover, the effects of different kinds of metal ions on siderophore production were explored here. We found that Fe3+ and Cu2+ significantly inhibited the synthesis of siderophores. The preliminary separation and purification of siderophores by immobilized-metal affinity chromatography (IMAC) provides strong antibacterial activity against Candida albicans. The synergistic effect of siderophores and amphotericin B was also demonstrated. Our results have shown that the GZDF3 strain could produce a large amount of siderophores with strong antagonistic activity, which is helpful in the development of new biological control agents.

      • KCI등재

        Association of the Single-Nucleotide Polymorphism and Haplotype of the Complement Receptor 1 Gene with Malaria

        Yan Lan,Le-Gen Nong,Chuan-Dong Wei,Wen-Cheng Chen,Jun-Li Wang,Chun-Fang Wang,Guo-Gang Pan,Ye-Sheng Wei 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.2

        Purpose: Although the polymorphisms of erythrocyte complement receptor type 1 (CR1) in patients with malaria have been extensively studied, a question of whether the polymorphisms of CR1 are associated with severe malaria remains controversial. Furthermore, no study has examined the association of CR1 polymorphisms with malaria in Chinese population. Therefore, we investigated the relationship of CR1 gene polymorphism and malaria in Chinese population. Materials and Methods:We analyzed polymorphisms of CR1 gene rs2274567 G/A, rs4844600 G/A, and rs2296160 C/T in 509 patients with malaria and 503 controls, using the Taqmangenotyping assay and PCR-direct sequencing. Results: There were no significantdifferences in the genotype, allele and haplotype frequencies of CR1 gene rs2274567 G/A, rs4844600 G/A, and rs2296160 C/T polymorphisms between patientswith malaria and controls. Furthermore, there was no association of polymorphismsin the CR1 gene with the severity of malaria in Chinese population. Conclusion:These findings suggest that CR1 gene rs2274567 G/A, rs4844600 G/A, and rs2296160 C/T polymorphisms may not be involved in susceptibility to malariain Chinese population.

      • KCI등재

        Telbivudine-Induced Myopathy: Clinical Features, Histopathological Characteristics, and Risk Factors

        Min-Yu Lan,Hui-Chen Lin,Tsung-Hui Hu,Shu-Fang Chen,Chien-Hung Chen,Yung-Yee Chang,King-Wah Chiu,Tsu-Kung Lin,Shun-Sheng Chen 대한신경과학회 2023 Journal of Clinical Neurology Vol.19 No.1

        Background and Purpose Oral nucleos(t)ide analogs (NAs) are the mainstay treatment for chronic hepatitis B (CHB). Myotoxicity is an important extrahepatic effect related to NA treatment. Telbivudine is the NA for CHB that is frequently associated with muscle-related side effects. The risk factors for telbivudine-induced myopathy (TIM) are not yet clear. Methods This study characterized the clinical, magnetic resonance images (MRI), and pathological features of 12 TIM cases. A group of telbivudine-tolerant (TT) patients with CHB who received regular telbivudine treatment during the same period without the occurrence of myopathy was collected. Demographic and clinical factors were compared between the patients with TIM and the TT controls. Factors independently associated with TIM were identified using logistic regression analysis. Results The patients with TIM (males/females: 7/5, mean age: 57 years) developed myopathy after using telbivudine for a median period of 19.5 months. Muscle histopathology revealed abnormal proliferation, subsarcolemmal or sarcoplasmic accumulations, and ultrastructural defects of mitochondria. When compared with TT cases, patients with TIM had a lower estimated glomerular filtration rate and were more frequently positive for hepatitis B e antigen (HBeAg). Conclusions Mitochondrial abnormalities are characteristic histopathological features, and impaired renal function and HBeAg positivity are risk factors for TIM. Telbivudine-induced mitochondrial dysfunction and immune activation related to mitochondrial damage and HBeAg serostatus changes may underlie TIM. Constant clinical surveillance of myopathy during telbivudine treatment is needed due to the significant latency of its development. Dose adjustment for impaired renal function does not eliminate the risk of TIM occurrence.

      • Construction of a Dual-Fluorescence Reporter System to Monitor the Dynamic Progression of Pluripotent Cell Differentiation

        Sun, Wu-Sheng,Chun, Ju-Lan,Do, Jeong-Tae,Kim, Dong-Hwan,Ahn, Jin-Seop,Kim, Min-Kyu,Hwang, In-Sul,Kwon, Dae-Jin,Hwang, Seong-Soo,Lee, Jeong-Woong Hindawi Publishing Corporation 2016 Stem cells international Vol.2016 No.-

        <P>Oct4 is a crucial germ line-specific transcription factor expressed in different pluripotent cells and downregulated in the process of differentiation. There are two conserved enhancers, called the distal enhancer (DE) and proximal enhancer (PE), in the 5′ upstream regulatory sequences (URSs) of the mouse<I> Oct4</I> gene, which were demonstrated to control<I> Oct4</I> expression independently in embryonic stem cells (ESCs) and epiblast stem cells (EpiSCs). We analyzed the URSs of the pig<I> Oct4</I> and identified two similar enhancers that were highly consistent with the mouse DE and PE. A dual-fluorescence reporter was later constructed by combining a DE-free-<I>Oct4</I>-promoter-driven EGFP reporter cassette with a PE-free-<I>Oct4</I>-promoter-driven mCherry reporter cassette. Then, it was tested in a mouse ESC-like cell line (F9) and a mouse EpiSC-like cell line (P19) before it is formally used for pig. As a result, a higher red fluorescence was observed in F9 cells, while green fluorescence was primarily detected in P19 cells. This fluorescence expression pattern in the two cell lines was consistent with that in the early naïve pluripotent state and late primed pluripotent state during differentiation of mouse ESCs. Hence, this reporter system will be a convenient tool for screening out ESC-like naïve pluripotent stem cells from other metastable state cells in a heterogenous population.</P>

      • KCI등재

        Molecular cloning and characterization of porcine ribosomal protein L21

        Sun, Wu-Sheng,Chun, Ju-Lan,Kim, Dong-Hwan,Ahn, Jin-Seop,Kim, Min-Kyu,Hwang, In-Sul,Kwon, Dae-Jin,Hwang, Seongsoo,Lee, Jeong-Woong The Korean Society of Veterinary Science 2017 JOURNAL OF VETERINARY SCIENCE Vol.18 No.4

        <P>Ribosomal protein L21 (RPL21) is a structural component of the 60S subunit of the eukaryotic ribosome. This protein has an important role in protein synthesis and the occurrence of hereditary diseases. Pig is a common laboratory model, however, to the best of our knowledge, its <I>RPL21</I> gene has not been cloned to date. In this study, we cloned and identified the full-length sequence of the pig <I>RPL21</I> gene for the first time. In addition, we examined its expression pattern and function by using overexpression or knockdown approaches. As a result, we obtained a 604 bp segment that contains a 483 bp open reading frame encoding 160 amino acids. The pig <I>RPL21</I> gene is located in the “+” strand of chromosome 11, which spans 2167 bp from 4199792 to 4201958. Pig <I>RPL21</I> protein has nine strands and two helices in its secondary structure. Pig <I>RPL21</I> is predominantly expressed in ovary and lung, at lower levels in kidney, small intestine, and skin, and at the lowest levels in heart and liver. Furthermore, <I>RPL21</I> expression is closely connected with cell proliferation and cell cycle arrest. The results are intended to provide useful information for the further study of pig <I>RPL21</I>.</P>

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