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| 1 | Endothelial CDS2 deficiency causes VEGFA-mediated vascular regression and tumor inhibition显示文摘The response of endothelial cells to signaling stimulation is critical for vascular morphogenesis,homeostasis and function.Vascular endothelial growth factor-a(VEGFA)has been commonly recognized as a pro-angiogenic factor in vertebrate developmental,physiological and pathological conditions for decades.Here we report a novel finding that genetic ablation of CDP-diacylglycerol synthetase-2(CDS2),a metabolic enzyme that controls phosphoinositide recycling,switches the output of VEGFA signaling from promoting angiogenesis to unexpectedly inducing vessel regression.Live imaging analysis uncovered the presence of reverse migration of the angiogenic endothelium in cds2 mutant zebrafish upon VEGFA stimulation,and endothelium regression also occurred in postnatal retina and implanted tumor models in mice.In tumor models,CDS2 deficiency enhanced the level of tumorsecreted VEGFA,which in-turn trapped tumors into a VEGFA-induced vessel regression situation,leading to suppression of tumor growth.Mechanistically,VEGFA stimulation reduced phosphatidylinositol(4,5)-bisphosphate(PIP2)availability in the absence of CDS2-controlled-phosphoinositide metabolism,subsequently causing phosphatidylinositol(3,4,5)-triphosphate(PIP3)deficiency and F0X01 activation to trigger regression of CDS2-null endothelium.Thus,our data indicate that the effect of VEGFA on vasculature is context-dependent and can be converted from angiogenesis to vascular regression. | Wencao Zhao Le Cao Hanru Ying Wenjuan Zhang Dantong Li Xiaolong Ziiu Wenzhi Xue Shuang Wu Mengye Cao Cong Fu Haonan Qi Yimei Hao Yun-Chi Tang Jun Qin Tao PZhong Xiaoxi Lin Luyang Yu Xuri Li Lin Li Dianqing Wu Weijun Pan | 2019 | Cell Research2019,29,11: | 9 |
| 2 | Polyphase orthogonal sequences design for opportunistic array radar via HGA显示文摘Opportunistic array radar(OAR) is a new generation radar system based on the stealth of the platform,which can improve the modern radar performance effectively.Designing the orthogonal code sets with low autocorrelation and cross-correlation is a key issue for OAR.This paper proposes a novel hybrid genetic algorithm(HGA) and designs the polyphase orthogonal code sets with low autocorrelation and cross-correlation properties,which can be used in the OAR system.The novel algorithm combines with simulated annealing(SA) and genetic algorithm(GA),adds in keeping best individuals and competition in small scope,and introduces grey correlation evaluation to evaluate fitness function. These avoid the premature convergence problem existed in GA and enhance the global searching capability.At last,the genetic results are optimized to obtain the best solution by using greedy algorithm.The simulation results show that the proposed algorithm is effective for the design of orthogonal phase signals used in OAR systems. | Shufeng Gong Weijun Long Hao Huang De Ben Minghai Pan | 2013 | Journal of Systems Engineering and Electronics2013,24,1: | 9 |
| 3 | Mutation of kri1l causes definitive hematopoiesis failure via PERK-dependent excessive autophagy induction显示文摘 | Xiao-E Jia Ke Ma Tao Xu Lei Gao Shuang Wu Cong Fu Wenjuan Zhang Zhizhang Wang Kaiyu Liu Mei Dong Changbin Jing Chunguang Ren Zhiwei Dong Yi Chen Yi Jin Qiuhua Huang Xing Chang Min Deng Li Li Lingfei Luo Jun Zhu Yongjun Dang Hung-Chun Chang Leonard I Zon Yi Zhou Saijuan Chen Weijun Pan | 2015 | Cell Research2015,25,8: | 8 |
| 4 | FBW7 regulates endothelial functions by targeting KLF2 for ubiquitination and degradation显示文摘F 盒子和 WD 重复包含域 7 (FBW7 ) , E3 ubiquitin ligase SCF FBW7 (SKP1, cullin-1 和 FBW7 的建筑群) ,在各种各样的生理、病理学的过程起重要作用。尽管 FBW7 为脉管的开发被要求,它在内皮细胞层的函数尚待被调查。在这研究,我们证明 FBW7 是 endothelial 功能的一个重要管理者,包括 angiogenesis,白血球粘附和 endothelial 障碍正直。用 RNA 干扰,我们发现 FBW7 的弄空显著地在 vitro 并且在 vivo 损害 angiogenesis。我们识别了锌手指抄写因素 Krü象 ppel 一样因素 2 (KLF2 ) 作为在 endothelial 房间的 FBW7 的一个生理的目标。FBW7 击倒表示在 endothelial 房间导致了内长的 KLF2 蛋白质的累积。调停 FBW7 的 KLF2 破坏被显示在二保存 phosphodegrons 经由肝糖 synthase kinase-3 (GSK3 ) 取决于 KLF2 的 phosphorylation。变异这些 phosphodegron 主题废除了 KLF2 的调停 FBW7 的降级和 ubiquitination。调停 siRNA 显示出的 FBW7 击倒 KLF2 是在 endothelial 的规定的 FBW7 的一个必要目标,这工作。而且,调停 FBW7 的 KLF2 降级被显示为在 teratomas 并且在 zebrafish 开发的 angiogenesis 批评。一起拿,我们的学习在 endothelial 房间移植, angiogenesis,发炎和障碍完整的进程为 FBW7 建议一个角色,并且在 vivo 提供新奇卓见进 KLF2 稳定性的规定。 | Rui Wang Yah Wang Ning Liu Chunguang Ren Cong Jiang Kai Zhang Su Yu Yunfei Chen Hui Tang Qi Deng Cong Fu Yingcong Wang Rong Li Mingyao Liu Weijun Pan Ping Wang | 2013 | Cell Research2013,23,6: | 7 |
| 5 | The Distribution of Different Clades of Seneca Valley Viruses in Guangdong Province,China显示文摘Seneca Valley virus (SVV), a newly determined etiological agent of vesicular disease in swine, causes porcine idiopathic disease and occasional acute death in piglets. Recently, an increased number of SVV infection cases have been reported in the United States (US) and China, resulting in significant economic losses to the swine industry. The first identification of SVV in China was reported in Guangdong Province, a major swine producing province. The cases of SVV were continuously reported in Guangdong in 2015 and 2016. However, the spread of SVV in Guangdong in 2017 remains unknown.In this study, we determined two new SVV strains, CH-GD-2017-1 and CH-GD-2017-2, from Guangdong. The genetic analysis suggested that the two Guangdong strains showed different characteristics to previous Guangdong strains. They showed lower nucleotide similarity with strains isolated in 2015 and 2016, and were more similar to the US strains.Phylogenetic analyses indicated that the new strains were clustered in a different clade with previous Guangdong strains.We found 28 mutated amino acids in the new strains, compared with the first Guangdong strain, SVV CH-01-2015. In the geographic analysis, we found that the US and China reported more SVV cases than other countries, and most of the SVV cases were reported in east and central China—of which, Guangdong Province is one of the major epidemic regions. In conclusion, our findings indicate that SVV continued to spread in Guangdong Province in 2017, and two different clades of SVVs have emerged in this region. | Pan Chen Fan Yang Weijun Cao Huanan Liu Keshan Zhang Xiangtao Liu Zhiwen Xu Zixiang Zhu Haixue Zheng | 2018 | Virologica Sinica2018,33,5: | 7 |
| 6 | Vegfa signaling regulates diverse artery/vein formation in vertebrate vasculatures显示文摘Vascular endothelial growth factor A(Vegfa) signaling regulates vascular development during embryogenesis and organ formation.However,the signaling mechanisms that govern the formation of various arteries/veins in various tissues are incompletely understood.In this study,we utilized transcription activator-like effector nuclease(TALEN) to generate zebrafish vegfaa mutants.vegfaa^(-/-) embryos are embryonic lethal,and display a complete loss of the dorsal aorta(DA) and expansion of the cardinal vein.Activation of Vegfa signaling expands the arterial cell population at the expense of venous cells during vasculogenesis of the axial vessels in the trunk.Vegfa signaling regulates endothelial cell(EC) proliferation after arterial-venous specification.Vegfa deficiency and overexpression inhibit the formation of tip cell filopodia and interfere with the pathfinding of intersegmental vessels(ISVs).In the head vasculature,vegfaa^(-/-) causes loss of a pair of mesencephalic veins(MsVs) and central arteries(CtAs),both of which usually dvelop via sprouting angiogenesis.Our results indicate that Vegfa signaling induces the formation of the DA at the expense of the cardinal vein during the trunk vasculogenesis,and that Vegfa is required for the angiogenic formation of MsVs and CtAs in the brain.These findings suggest that Vegfa signaling governs the formation of diverse arteries/veins by distinct cellular mechanisms in vertebrate vasculatures. | Daqing Jin Diqi Zhu Yabo Fang Yiwei Chen Gaihong Yu Weijun Pan Dong Liu Fen Li Tao P.Zhong | 2017 | Journal of Genetics and Genomics2017,44,10: | 6 |
| 7 | Effects of antioxidants on homocysteine thiolactone-induced apoptosis in human umbilical vein endothelial cells显示文摘Background and objectives Hyperhomocysteinemia is an independent risk factor for cardiovascular disease. Homocysteine thiolactone (HcyT), one of the homocysteine metabolites in vivo, is toxic both in vivo and in vitro. The aim of this study was to investigate the effect of HcyT on apoptotic damage in human umbilical vein endothelial cells (HUVECs) and the role of antioxidants in the reduction of HcyT-induced apoptosis. Methods HUVECs were cultured in DMEM supplemented with 20% heat inactivated fetal bovine serum cell cultures were maintained in a humidified 5% CO2 atmosphere at 37 ℃. Cytotoxicity was determined by MTT assay,which consists of hypodiploid cells with propidium iodide labeling and intracellular reactive oxygen species levels using 2',7'-dichlorofluorescein diacetate as the probe by flow cytometry. Results HcyT (250-2000μM) induced HUVECs apoptosis in a time- and concentration-dependent manner. Reactive oxygen species levels rose in response to increasing HcyT concentrations at 24-h incubation.The reduction of cell apoptosis by N-acetylcysteine, vitamin E, or pyrrolidine dithiocarbamate, occurred simultaneously with a significant decrease in intracellular reactive oxygen species levels. Conclusion HcyT exerts its cytotoxic effects on endothelial cells through an apoptotic mechanism involving cellular reactive oxygen species production. The capacity of N-acetylcysteine, vitamin E, and pyrrolidine dithiocarbamate to scavenge HcyT-induced cellular reactive oxygen species correlates well with their efficiency to protect against HcyT-promoted apoptotic damage. The protective effect of pyrrolidine dithiocarbamate on cell apoptosis indicates HcyT-generated hydrogen peroxide may provoke cell apoptosis via activating nuclear factor-kappa binding protein. | Weijun GU Juming LU Guoqing YANG Qinghua GUO Baoan WANG Yiming MU Changyu PAN | 2006 | Journal of Geriatric Cardiology2006,3,2: | 3 |
| 8 | Experimental Gaussian Boson sampling显示文摘Gaussian Boson sampling(GBS) provides a highly efficient approach to make use of squeezed states from parametric down-conversion to solve a classically hard-to-solve sampling problem. The GBS protocol not only significantly enhances the photon generation probability, compared to standard Boson sampling with single photon Fock states, but also links to potential applications such as dense subgraph problems and molecular vibronic spectra. Here, we report the first experimental demonstration of GBS using squeezed-state sources with simultaneously high photon indistinguishability and collection efficiency.We implement and validate 3-, 4- and 5-photon GBS with high sampling rates of 832, 163 and 23 kHz,respectively, which is more than 4.4, 12.0, and 29.5 times faster than the previous experiments.Further, we observe a quantum speed-up on a NP-hard optimization problem when comparing with simulated thermal sampler and uniform sampler. | Han-Sen Zhong Li-Chao Peng Yuan Li Yi Hu Wei Li Jian Qin Dian Wu Weijun Zhang Hao Li Lu Zhang Zhen Wang Lixing You Xiao Jiang Li Li Nai-Le Liu Jonathan P.Dowling Chao-Yang Lu Jian-Wei Pan | 2019 | Science Bulletin2019,64,8: | 3 |
| 9 | Impacts of space-time-frequency synchronization errors onwide-band target echo characteristics of bistatic/multistatic radar显示文摘Bistatic/multistatic radar has great potential advantages over its monostatic counterpart. However, the separation of a transmitter and a receiver leads to difficulties in locating the target position accurately and guaranteeing space-timefrequency synchronization of the transmitter and the receiver.The error model of space-time-frequency synchronization in a motion platform of bistatic/multistatic radar is studied. The relationship between the space synchronization error and the transmitter platform position, receiver platform position, moving state, and beam pointing error, is analyzed. The effect of space synchronization error on target echo power is studied. The target scattering characteristics are restructured by many separate scattering centers of the target in high frequency regions. Based on the scattering centers model of the radar target, this radar target echo model and the simulation method are discussed. The algorithm of bistatic/multistatic radar target echo accurately reflects the scattering characteristics of the radar target, pulse modulation speciality of radar transmitting signals, and spacetime-frequency synchronization error characteristics between the transmitter station and the receiver station. The simulation of bistatic radar is completed in computer, and the results of the simulation validate the feasibility of the method. | Minghai Pan Qinghua Han Shufeng Gong Weijun Long Haitao Wei | 2016 | Journal of Systems Engineering and Electronics2016,27,3: | 2 |
| 10 | Dose,Plasma Level,and Treatment Outcome Among Methadone Patients in Shanghai,China显示文摘The purpose of this study was to investigate the blood levels of methadone in participants receiving methadone for the treatment of opioid dependence.After stabilization on methadone for four weeks,blood samples from 95 participants were collected between treatment weeks 4 and 12,before and after receiving doses of methadone,and its blood levels were measured.A multiple linear regression model was used to examine me association between methadone blood levels and the outcomes of methadone maintenance treatment(MMT).Outcome differences between participants who had high(>2) or low(<2) peak-to-trough ratios were also compared using an independent sample /-test.The blood level of methadone was not correlated with the clinical outcome of MMT with the moderate range of doses given.However,the retention of patients who had a free peak-to-trough ratio >2 was significantly poorer than those whose ratio was <2.Thus,monitoring plasma methadone levels is unlikely to be effective for guiding dosing decisions in situations where compliance with MMT is already very high or when the methadone dose is no longer the dominant factor in determining the clinical outcome.However,monitoring plasma methadone levels is still helpful for guiding the dosage for patients with a rapid metabolism. | Haifeng Jiang Maureen Hillhouse Jiang Du Shujun Pan Ang Alfonso Jun Wang Zhirong Zhou Weijun Yuan Walter Ling Min Zhao | 2016 | Neuroscience Bulletin2016,32,6: | 1 |
| 11 | A VUV photoionization mass spectrometric study on the OH-initiated photooxidation of isoprene with synchrotron radiation显示文摘The gas-phase organic compounds resulting from OH-initiated photooxidation of isoprene have been investigated on-line by VUV photoionization mass spectrometry based on synchrotron radiation for the first time.The photoionization efficiency curves of the corresponding gaseous products as well as the chosen standards have been deduced by gating the interested peaks in the photoionization mass spectra while scanning the photon energy simultaneously,which permits the identification of the pivotal gaseous products of the photooxidation of isoprene,such as formaldehyde(10.84eV),formic acid(11.38eV),acetone(9.68eV),glyoxal(9.84eV),acetic acid(10.75eV),methacrolein(9.91eV),and methyl vinyl ketone(9.66eV).Proposed reaction mechanisms leading to the formation of these key products were discussed,which were completely consistent with the previous works of different groups.The capability of synchrotron radiation photoionization mass spectrometry to directly identify the chemical composition of the gaseous products in a simulation chamber has been demonstrated,and its potential application in related studies of atmospheric oxidation of ambient volatile organic compounds is anticipated. | Gang Pan Changjin Hu Mingqiang Huang Zhenya Wang Yue Cheng Zhi Liu Weixiong Zhao Weijun Zhang Jun Chen Fuyi Liu Xiaobin Shan Liusi Sheng | 2012 | Journal of Environmental Sciences2012,24,12: | 1 |
| 12 | Numerical Simulation of Wake Vortices Generated by an A330-200 Aircraft in the Nearfield Phase显示文摘In order to overcome the typical limitation of earlier studies,where the simulation of aircraft wake vortices was essentially based on the half-model of symmetrical rectangular wings,in the present analysis the entire aircraft(a typical A330-200 aircraft)geometry is taken into account.Conditions corresponding to the nearfield phase(takeoff and landing)are considered assuming a typical attitude angle of 7°and different crosswind intensities,i.e.,0,2 and 5 m/s.The simulation results show that the aircraft wake vortices form a structurally eudipleural four-vortex system due to the existence of the sweepback angle.The vortex pair at the outer side is induced by the pressure difference between the upper and lower surfaces of the wings.The wingtip vortex is split at the wing by the winglet into two smaller streams of vortices,which are subsequently merged 5 m behind the wingtip.Compared with the movement trend of wake vortices in the absence of crosswind,the aircraft wake vortices move as a whole downstream due to the crosswind to be specific,the 2 m/s crosswind can accelerate the dissipation of wake vortices and is favorable for the reduction of the aircraft wake separation.The 5 m/s crosswind results in significantly increased vorticity of two vortex systems:the wingtip vortex downstream the crosswind and the wing root vortex upstream the crosswind due to the energy input from the crosswind.However,the crosswind at a higher speed can accelerate the deviation of wake vortices,and facilitate the reduction in wake separation of the aircraft taking off and landing on a single-runway airport. | Xuan Wang Weijun Pan | 2022 | Fluid Dynamics & Materials Processing2022,18,1: | 1 |
| 13 | Employing 100% excitons in OLEDs by utilizing a fluorescent molecule with hybridized local and charge-transfer excited state 显示文摘 | Li Weijun Pan Yuyu Xiao Ran | 2014 | Advanced Functional Materials2014,24,11: | 1 |
| 14 | C-176 loaded Ce DNase nanoparticles synergistically inhibit the cGAS-STING pathway for ischemic stroke treatment显示文摘The neuroinflammatory responses following ischemic stroke cause irreversible nerve cell death.Cell free-double strand DNA(dsDNA)segments from ischemic tissue debris are engulfed by microglia and sensed by their cyclic GMP-AMP synthase(cGAS),which triggers robust activation of the innate immune stimulator of interferon genes(STING)pathway and initiate the chronic inflammatory cascade.The decomposition of immunogenic dsDNA and inhibition of the innate immune STING are synergistic immunologic targets for ameliorating neuroinflammation.To combine the anti-inflammatory strategies of STING inhibition and dsDNA elimination,we constructed a DNase-mimetic artificial enzyme loaded with C-176.Nanoparticles are self-assembled by amphiphilic copolymers(P[CL35-b-(OEGMA20.7-co-NTAMA14.3)]),C-176,and Ce^(4+)which is coordinated with nitrilotriacetic acid(NTA)group to form corresponding catalytic structures.Our work developed a new nano-drug that balances the cGAS-STING axis to enhance the therapeutic impact of stroke by combining the DNase-memetic Ce^(4+)enzyme and STING inhibitor synergistically.In conclusion,it is a novel approach to modulating central nervus system(CNS)inflammatory signaling pathways and improving stroke prognosis. | Zhixin Zhu Haipeng Lu Lulu Jin Yong Gao Zhefeng Qian Pan Lu Weijun Tong Pik Kwan Lo Zhengwei Mao Haifei Shi | 2023 | Bioactive Materials2023,,11: | 1 |
| 15 | Employing ~100% Excitons in OLEDs by Utilizing a Fluorescent Molecule with Hybridized Local and Charge‐Transfer Excited State显示文摘 | Weijun Li Yuyu Pan Ran Xiao Qiming Peng Shitong Zhang Dongge Ma Feng Li Fangzhong Shen Yinghui Wang Bing Yang Yuguang Ma | 2014 | Adv Funct Mater2014,,11: | 1 |
| 16 | Type I photosensitizer based on AIE chromophore tricyano-methylene-pyridine for photodynamic therapy显示文摘Image guided photodynamic therapy(PDT)combines fluorescence tracing and phototherapy,which can achieve a more accurate and effective treatment effect.However,traditional photosensitizers are limited by the aggregation-caused fluorescence quenching(ACQ)effect and low reactive oxygen species(ROS)generation in a hypoxic environment,resulting in poor imaging and treatment effect.Herein,we report a tricyano-methylene-pyridine(TCM)-based Type I aggregation-induced emission(AIE)photosensitizer(TCM-MBP),the strong elec-tron acceptance(D-A)effect extends the wavelength to near-infrared(NIR)region to reduce the autofluorescence interference,and oxygen atoms provide lone pair electrons to enhance the inter system crossing(ISC)rate,thereby promoting the generation of more triplet states to produce ROS.The AIE photosensitizer TCM-MBP exhibited low oxygen dependence,NIR emission,and higher ROS production compared to commercially avail-able Ce_(6) and RB.After encapsulation with DSPE-PEG 2000,TCM-MBP nanoparticles(TCM-MBP NPs)could penetrate to visualize cells and efficiently kill cancer cells upon light irradiation.This study provides an oxygen-independent AIE photosensitizer,which has great potential to replace the commercial ACQ photosensitizers. | Chao Pan Weijun Zhao Xiaolei Zhao Zhenxing Liu Xiangyu Li Yanting Lyu Xupeng Wu Zhirong Zhu Wei-Hong Zhu Qi Wang | 2023 | Green Chemical Engineering2023,4,3: | 0 |
| 17 | MXene based non-noble metal catalyst for overall water splitting in alkaline conditions显示文摘MXene,the two-dimensional transition metal carbide or nitride material,was first discovered in 2011.They possess superior characteristics such as stability,electric conductivity,and electrochemical properties,that make them attract the attention of the energy engineering field.Overall water splitting which generates hydrogen and oxygen,not only serves as a clean energy supply technology but also demonstrates the capacity for redistribution and integration of renewable energy.MXene based non-noble metal has demonstrated significant potential in terms of cost-effectiveness.Therefore,the current focus is implementing targeted regulation at the micro level to render it effective comparable to the precious metals.In this context,the mechanisms of the hydrogen evolution reaction(HER) and the oxygen evolution reaction(OER) under the influence of MXene can be elucidated in terms of electron and ion transfer processes,hydrogen coverage,and regulation of terminal groups.Certainly,the composition,structure,synthesis,and stability strategies of MXene are the subjects of comprehensive investigation from both theoretical calculations using density functional theory(DFT) and experimental perspectives.In addition,this review provides a comprehensive summary of MXene based non-noble metal and various modification methods.These methods encompass doping,vacancy engineering,hybrid structures,heterojunction formation,multi-scale engineering,surface engineering,and phase engineering.The review also presents suggestions for designing high-performance MXene based on non-noble metals.It offers guidance on employing construction strategies for electrocatalysts.By leveraging the unique properties and tunability of MXene and implementing these modification methods,researchers can enhance the catalytic activity,stability,selectivity,and efficiency of MXene based non-noble metal catalysts. | Dezheng Guo Qiwen Pan Thomas Vietor Weijun Lu Yuan Gao | 2023 | Journal of Energy Chemistry2023,,12: | 0 |
| 18 | Phosphorylation of CENP-R by Aurora B regulates kinetochore-microtubule attachment for accurate chromosome segregation显示文摘Error-free mitosis depends on accurate chromosome attachment to spindle microtubules via a fine structure called the centromere that is epigenetically specified by the enrichment of CENP-A nucleosomes.Centromere maintenance during mitosis requires CENP-A-mediated deposition of constitutive centromere-associated network that establishes the inner kinetochore and connects centromeric chromatin to spindle microtubules during mitosis.Although previously proposed to be an adaptor of retinoic acid receptor,here,we show that CENP-R synergizes with CENP-OPQU to regulate kinetochore-microtubule attachment stability and ensure accurate chromosome segregation in mitosis.We found that a phospho-mimicking mutation of CENP-R weakened its localization to the kinetochore,suggesting that phosphorylation may regulate its localization.Perturbation of CENP-R phosphorylation is shown to prevent proper kinetochore-microtubule attachment at metaphase.Mechanistically,CENP-R phosphorylation disrupts its binding with CENP-U.Thus,we speculate that Aurora B-mediated CENP-R phosphorylation promotes the correction of improper kinetochore-microtubule attachment in mitosis.As CENP-R is absent from yeast,we reasoned that metazoan evolved an elaborate chromosome stability control machinery to ensure faithful chromosome segregation in mitosis. | Divine Mensah Sedzro Xiao Yuan McKay Mullen Umer Ejaz Tongtong Yang Xu Liu Xiaoyu Song Yun-Chi Tang Weijun Pan Peng Zou Xinjiao Gao Dongmei Wang Zhikai Wang Zhen Dou Xing Liu Xuebiao Yao | 2022 | Journal of Molecular Cell Biology2022,14,7: | 0 |
| 19 | 无锡大剧院 中国无锡显示文摘2008年,PES建筑师事务所赢得了为无锡大剧院邀请了国际建筑设计竞赛一等奖。除了建筑设计,PES建筑师事务所还负责总体设计,从功能方案到室内和景观设计、剧院技术、照明和声学设计。大剧院可容纳1680个座位,而多功能厅可容纳700个座位。无锡大剧院的主要思想是基于它的位置。太湖北岸区和公路桥梁的人工半岛附近做这个位置媲美悉尼歌剧院。由于这个位置的建筑是一个令人印象深刻的标志性建筑,上升到50米的总高度就像从梯田基地的大雕塑。八个巨大的屋顶翅膀伸展远远超过外墙,给建筑物蝴蝶的角色,同时保护建筑,距离太阳的热量。 | 无 佩卡·萨米宁 Jussi Tiainen(摄影) Kari Palsila(摄影) Pan Weijun(摄影) | 2021 | 世界建筑导报2021,36,1: | 0 |
| 20 | A Robust Conformer-Based Speech Recognition Model for Mandarin Air Traffic Control显示文摘This study aims to address the deviation in downstream tasks caused by inaccurate recognition results when applying Automatic Speech Recognition(ASR)technology in the Air Traffic Control(ATC)field.This paper presents a novel cascaded model architecture,namely Conformer-CTC/Attention-T5(CCAT),to build a highly accurate and robust ATC speech recognition model.To tackle the challenges posed by noise and fast speech rate in ATC,the Conformer model is employed to extract robust and discriminative speech representations from raw waveforms.On the decoding side,the Attention mechanism is integrated to facilitate precise alignment between input features and output characters.The Text-To-Text Transfer Transformer(T5)language model is also introduced to handle particular pronunciations and code-mixing issues,providing more accurate and concise textual output for downstream tasks.To enhance the model’s robustness,transfer learning and data augmentation techniques are utilized in the training strategy.The model’s performance is optimized by performing hyperparameter tunings,such as adjusting the number of attention heads,encoder layers,and the weights of the loss function.The experimental results demonstrate the significant contributions of data augmentation,hyperparameter tuning,and error correction models to the overall model performance.On the Our ATC Corpus dataset,the proposed model achieves a Character Error Rate(CER)of 3.44%,representing a 3.64%improvement compared to the baseline model.Moreover,the effectiveness of the proposed model is validated on two publicly available datasets.On the AISHELL-1 dataset,the CCAT model achieves a CER of 3.42%,showcasing a 1.23%improvement over the baseline model.Similarly,on the LibriSpeech dataset,the CCAT model achieves a Word Error Rate(WER)of 5.27%,demonstrating a performance improvement of 7.67%compared to the baseline model.Additionally,this paper proposes an evaluation criterion for assessing the robustness of ATC speech recognition systems.In robustness evaluation experiments based on this criterion,the proposed model demonstrates a performance improvement of 22%compared to the baseline model. | Peiyuan Jiang Weijun Pan Jian Zhang Teng Wang Junxiang Huang | 2023 | Computers, Materials & Continua2023,77,10: | 0 |