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- 저자 : ( Biao Yang ) (검색결과 42 건)
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Yang Hui-Hui,Jiang Hui-Ling,Tao Jia-Hao,Zhang Chen-Yu,Xiong Jian-Bing,Yang Jin-Tong,Liu Yu-Biao,Zhong Wen-Jing,Guan Xin-Xin,Duan Jia-Xi,Zhang Yan-Feng,Liu Shao-Kun,Jiang Jian-Xin,Zhou Yong,Guan Cha-Xi 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-
Necroptosis is the major cause of death in alveolar epithelial cells (AECs) during acute lung injury (ALI). Here, we report a previously unrecognized mechanism for necroptosis. We found an accumulation of mitochondrial citrate (citratemt) in lipopolysaccharide (LPS)-treated AECs because of the downregulation of Idh3α and citrate carrier (CIC, also known as Slc25a1). shRNA- or inhibitor–mediated inhibition of Idh3α and Slc25a1 induced citratemt accumulation and necroptosis in vitro. Mice with AEC-specific Idh3α and Slc25a1 deficiency exhibited exacerbated lung injury and AEC necroptosis. Interestingly, the overexpression of Idh3α and Slc25a1 decreased citratemt levels and rescued AECs from necroptosis. Mechanistically, citratemt accumulation induced mitochondrial fission and excessive mitophagy in AECs. Furthermore, citratemt directly interacted with FUN14 domain-containing protein 1 (FUNDC1) and promoted the interaction of FUNDC1 with dynamin-related protein 1 (DRP1), leading to excessive mitophagy-mediated necroptosis and thereby initiating and promoting ALI. Importantly, necroptosis induced by citratemt accumulation was inhibited in FUNDC1-knockout AECs. We show that citratemt accumulation is a novel target for protection against ALI involving necroptosis.
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Directed self-assembly of cylinder-forming diblock copolymers on sparse chemical patterns
Yang, Yong-Biao,Choi, Young Joo,Kim, Sang Ouk,Kim, Jaeup U. The Royal Society of Chemistry 2015 SOFT MATTER Vol.11 No.22
<P>Using both theory and experiment, we investigate the possibility of creating perfectly ordered block copolymer nanostructures on sparsely patterned substrates. Our study focuses on scrutinizing the appropriate pattern conditions to avoid undesired morphologies or defects when depositing cylinder-forming AB diblock copolymer thin films on the substrates which are mostly neutral with periodic stripe regions preferring the minority domain. By systematically exploring the parameter space using self-consistent field theory (SCFT), the optimal conditions for target phases are determined, and the effects of the chemical pattern period and the block copolymer film thickness on the target phase stability are also studied. Furthermore, as a sample experimental system, almost perfectly aligned polystyrene-<I>block</I>-poly(methyl methacrylate) (PS-<I>b</I>-PMMA) diblock copolymers are demonstrated. After the pattern transfer process, highly ordered Al nanodot arrays following the initial vertically aligned cylinder pattern are created. This systematic study demonstrates the ability to control the structure and the position of nanopatterns on sparse chemical patterns.</P> <P>Graphic Abstract</P><P>Pattern multiplication and directed self-assembly of block copolymer films deposited on sparsely patterned substrates. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c5sm00474h'> </P>
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The Actions Between Chinese Troops and American Marine Corps During the Korea War
Yang Biao 명지대학교 인문과학연구소 1997 인문과학연구논총 Vol.16 No.-
During the Korea War, the American decision to cross the 38th Parallel began the direct conflict with the People's Republic of China. As Dean Acheson, American Secretary of State, described what happened after that, "the greatest defeat suffered by American arms since the Battle of Manassas and an international disaster of the first water"(1). It is also a disaster for China. Among the battles between two forces, the actions between Chinese troops and American Marine Corps were special and was selected for this paper.
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Biao Yang,Lin Zhao,Tian Tian,Yankui Qin,Changyu Liu 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.5
The “S” characteristics of a pump turbine may result in certain problems, such as excessive water hammer pressure, unstable no-load operation, and difficulty in synchronization. Accordingly, a new start-up strategy based on the partial opening of a ball valve is proposed, and the calculation model of the hydraulic transition process with misaligned guide vane devices (MGV) and a ball valve is established. The emergency shutdown and turbine start-up conditions are simulated and analyzed. The ball valve can more effectively reduce the maximum inlet pressure of the volute and increase the minimum inlet pressure of the draft tube during the shutdown process compared with the MGV devices. The newly proposed strategy can also effectively reduce the amplitude of pressure fluctuation at the volute and draft tube, shorten the synchronization time, and reduce the speed overshoot during the start-up process. The ball valve can effectively improve the operating quality of the unit in the S-shaped area.
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Roles of chemical pattern period and film thickness in directed self-assembly of diblock copolymers
Yang, Yong-Biao,Park, So Jung,Kim, Pilwon,Kim, Jaeup U. The Royal Society of Chemistry 2013 Soft matter Vol.9 No.23
<P>We develop a new numerical self-consistent field theory (SCFT) scheme for examining thin film nanostructures of cylinder-forming AB diblock copolymers on a chemically patterned substrate. Using this, we make a systematic analysis to achieve a fundamental understanding of the model system, and the conditions to create various novel film morphologies are scrutinized by varying the pattern period and film thickness. At a fixed pattern period, eight candidate phases which are divided into two groups according to the film thickness are found, and then their free energies are compared to identify the stable morphology. Among the thinner film morphologies, a crossed cylinder geometry is found to be stable with a comfortable margin. While for the thicker film morphologies, the stability of the phases depends strongly on both the pattern period and film thickness. In addition, we identify an unstable phase capable of thinning the films and consequently providing instability for the ordering of the thicker film nanostructures. A qualitative agreement is found between our theory and previously reported experimental results.</P> <P>Graphic Abstract</P><P>Thin film nanostructures of cylinder-forming AB diblock copolymers on a chemically patterned substrate are systematically examined using a new numerical self-consistent field theory (SCFT) scheme we developed. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c3sm50532d'> </P>
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Seismic performance of the concrete-encased CFST column to RC beam joints: Analytical study
Dan-Yang Ma,Lin-Hai Han,Xiao-Ling Zhao,Wei-Biao Yang 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.36 No.5
A finite element analysis (FEA) model is established to investigate the concrete-encased concrete-filled steel tubular (CFST) column to reinforced concrete (RC) beam joints under cyclic loading. The feasibility of the FEA model is verified by a set of test results, consisting of the failure modes, the exposed view of connections, the crack distributions and development, and the hysteretic relationships. The full-range analysis is conducted to investigate the stress and strain development process in the composite joint by using this FEA model. The internal force distributions of different components, as well as the deformation distributions, are analyzed under different failure modes. The proposed connections are investigated under dimensional and material parameters, and the proper constructional details of the connections are recommended. Parameters of the beam-column joints, including material strength, confinement factor, reinforcement ratio, diameter of steel tube to sectional width ratio, beam to column linear bending stiffness ratio and beam shear span ratio are evaluated. Furthermore, the key parameters affecting the failure modes and the corresponding parameters ranges are proposed in this paper.
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Jing Yi-Yang,He Biao,Yang Xiang-Yu,Ma Zhi-Min 대한전기학회 2024 Journal of Electrical Engineering & Technology Vol.19 No.1
Based on the exact analytical method, this paper calculates the no-load back electromotive force, air gap fux density, cogging torque, and electromagnetic torque of outer rotor wheel-hub permanent magnet synchronous motor (PMSM); the calculation results are in good agreement with those of the fnite element method, which verifes the accuracy of the exact analytical method for solving the outer rotor PMSM. On this basis, the second-generation non-dominated sorting genetic algorithm (NSGA-II) is applied to optimize the multiple structural parameters and performance of the motor more quickly. Compared with the initial scheme of the motor, the torque ripple and permanent magnet mass of the optimized scheme is decreased by a quarter; the average electromagnetic torque, efciency is also improved. Finally, the simulation and experimental results show that the proposed method is reasonable and efective.
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Tao Zheng,Tian-biao Zhang,Chao-liang Wang,Wei-xing Zhang,Dong-hui Jia,Fan Yang,Yang-yang Sun,Xiao-ju Ding,Rui Wang 한국분자세포생물학회 2018 Molecules and cells Vol.41 No.6
Icariside II (ICA II) is used in erectile dysfunction treatment. Adipose tissue-derived stem cells (ADSCs) are efficient at improving erectile function. This study aimed to explore the action mechanism of ADSCs in improving erectile function. ADSCs were isolated from the adipose tissues of rats. Cell proliferation was determined using the Cell Counting Kit-8 (CCK-8) assay. The expressions of mRNA and protein were determined separately through qRT-PCR and western blot. The endogenous expressions of related genes were regulated using recombinant plasmids and cell transfection. A Dual-Luciferase Reporter Assay was performed to determine the interaction between miR-34a and STAT3. Rat models with bilateral cavernous nerve injuries (BCNIs) were used to assess erectile function through the detection of mean arterial pressure (MAP) and intracavernosal pressure (ICP). ICA II promoted ADSCs’ proliferation and differentiation to Schwann cells (SCs) through the inhibition of miR-34a. Suppressed miR-34a promoted the differentiation of ADSCs to SCs by up-regulating STAT3. ICA II promoted the differentiation of ADSCs to SCs through the miR-34a/STAT3 pathway. The combination of ICA II and ADSCs preserved the erectile function of the BCNI model rats. ADSCs treated with ICA II markedly preserved the erectile function of the BCNI model rats, which was reversed through miR-34a overexpression. ICA II pro-motes the differentiation of ADSCs to SCs through the miR-34a/STAT3 pathway, contributing to erectile function preservation after the occurrence of a cavernous nerve injury.
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Zheng, Tao,Zhang, Tian-biao,Wang, Chao-liang,Zhang, Wei-xing,Jia, Dong-hui,Yang, Fan,Sun, Yang-yang,Ding, Xiao-ju,Wang, Rui Korean Society for Molecular and Cellular Biology 2018 Molecules and cells Vol.41 No.6
Icariside II (ICA II) is used in erectile dysfunction treatment. Adipose tissue-derived stem cells (ADSCs) are efficient at improving erectile function. This study aimed to explore the action mechanism of ADSCs in improving erectile function. ADSCs were isolated from the adipose tissues of rats. Cell proliferation was determined using the Cell Counting Kit-8 (CCK-8) assay. The expressions of mRNA and protein were determined separately through qRT-PCR and western blot. The endogenous expressions of related genes were regulated using recombinant plasmids and cell transfection. A Dual-Luciferase Reporter Assay was performed to determine the interaction between miR-34a and STAT3. Rat models with bilateral cavernous nerve injuries (BCNIs) were used to assess erectile function through the detection of mean arterial pressure (MAP) and intracavernosal pressure (ICP). ICA II promoted ADSCs' proliferation and differentiation to Schwann cells (SCs) through the inhibition of miR-34a. Suppressed miR-34a promoted the differentiation of ADSCs to SCs by upregulating STAT3. ICA II promoted the differentiation of ADSCs to SCs through the miR-34a/STAT3 pathway. The combination of ICA II and ADSCs preserved the erectile function of the BCNI model rats. ADSCs treated with ICA II markedly preserved the erectile function of the BCNI model rats, which was reversed through miR-34a overexpression. ICA II promotes the differentiation of ADSCs to SCs through the miR34a/STAT3 pathway, contributing to erectile function preservation after the occurrence of a cavernous nerve injury.
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