检索结果-南通市图书馆

Deep Guided Attention Network for Joint Denoising and Demosaicing in Real Image

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2024年第1期33卷 303-312页

作者： Tao zhang Ying fu Jun zhang School of Computer Science and Technology Beijing Institute of Technology Advanced Reasearch Institute of Multidisciplinary Science Beijing Institute of Technology

Denoising(DN) and demosaicing(DM) are the first crucial stages in the image signal processing pipeline. Recently, researches pay more attention to solve DN and DM in a joint manner, which is an extremely undetermined inverse problem. Existing deep learning methods learn the desired prior on synthetic dataset, which limits the generalization of learned network to the real world data. Moreover, existing methods mainly focus on the raw data property of high green information sampling rate for DM, but occasionally exploit the high intensity and signalto-noise(SNR) of green channel. In this work, a deep guided attention network(DGAN) is presented for real image joint DN and DM(JDD), which considers both high SNR and high sampling rate of green information for DN and DM, respectively. To ease the training and fully exploit the data property of green channel, we first train DN and DM sub-networks sequentially and then learn them jointly, which can alleviate the error accumulation. Besides, in order to support the real image JDD, we collect paired raw clean RGB and noisy mosaic images to conduct a realistic dataset. The experimental results on real JDD dataset show the presented approach performs better than the state-of-the-art methods, in terms of both quantitative metrics and qualitative visualization.

关键词： Training Visualization Inverse problems Green products Noise reduction Pipelines Signal processing

Electrochemical　and　Spectroelectrochemical　Studies　of　Molybdenum　and　Neodymium　Complex　with　Diethyld

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 1998年第1期14卷 53-58页

作者： Yu, Zhen-xing fu, Qing-hong zhang, Heng-bin Niu, Shu-yun Li, Shu-jia xun, Xiu-mei Jilin Univ Dept Chem Changchun 130023 Peoples R China

ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌａｎｄＳｐｅｃｔｒｏｅｌｅｃｔｒｏｃｈｅｍｉｃａｌＳｔｕｄｉｅｓｏｆＭｏｌｙｂｄｅｎｕｍａｎｄＮｅｏｄｙｍｉｕｍＣｏｍｐｌｅｘｗｉｔｈＤｉｅｔｈｙｌｄｉｔｈｉｏｃａｒｂａｍａｔｅＬｉｇａ... 详细信息

ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌａｎｄＳｐｅｃｔｒｏｅｌｅｃｔｒｏｃｈｅｍｉｃａｌＳｔｕｄｉｅｓｏｆＭｏｌｙｂｄｅｎｕｍａｎｄＮｅｏｄｙｍｉｕｍＣｏｍｐｌｅｘｗｉｔｈＤｉｅｔｈｙｌｄｉｔｈｉｏｃａｒｂａｍａｔｅＬｉｇａｎｄＹＵＺｈｅｎ－ｘｉｎｇ，ＦＵＱ...

关键词： Diethyld Molybdenum Studies Complex

Exercise preconditioning alleviates ischemia-induced memory deficits by increasing circulating adiponectin

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第5期20卷 1445-1454页

作者： Meifeng Zheng Borui zhang Sonata S Y Yau Kwok-Fai So Li zhang Haining Ou Department of Rehabilitation Medicine Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Medicine The Fifth Clinical College of Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Key Laboratory of CNS Regeneration(Ministry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina State Key Laboratory of Brain and Cognitive Science Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina Center for Exercise and Brain Science School of PsychologyShanghai University of SportShanghaiChina Neuroscience and Neurorehabilitation Institute University of Health and Rehabilitation SciencesQingdaoShandong ProvinceChina

Cerebral ischemia is a major health risk that requires preventive approaches in addition to drug *** exercise enhances neurogenesis and synaptogenesis,and has been widely used for functional rehabilitation after *** this study,we determined whether exercise training before disease onset can alleviate the severity of cerebral *** also examined the role of exercise-induced circulating factors in these *** mice were subjected to 14 days of treadmill exercise training before surgery for middle cerebral artery *** found that this exercise pre-conditioning strategy effectively attenuated brain infarct area,inhibited gliogenesis,protected synaptic proteins,and improved novel object and spatial memory *** analysis showed that circulating adiponectin plays a critical role in these preventive effects of *** activation of adiponectin receptors by Adipo Ron mimicked the effects of exercise,while inhibiting receptor activation abolished the exercise *** summary,our results suggest a crucial role of circulating adiponectin in the effects of exercise pre-conditioning in protecting against cerebral ischemia and supporting the health benefits of exercise.

关键词： adiponectin cerebral ischemia exercise pre-conditioning hippocampus memory function middle cerebral artery occlusion prefrontal cortex synaptic proteins treadmill exercise

Recent advances in gas-involved in situ studies via transmission electron microscopy

在线全文

学校读者我要写书评

暂无评论

Nano Research 2018年第1期11卷 42-67页

作者： Ying Jiang Zhengfei zhang Wentao Yuan xun zhang Yong wang Ze zhang Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Materials Genome Institute Shanghai University Shanghai 200444 China

Gases that are widely used in research and industry have a significant effect on both the configuration of solid materials and the evolution of reactive systems. Traditional studies on gas-solid interactions have mostly been static and post-mortem and unsatisfactory for elucidating the real active states during the reactions. Recent developments of controlled-atmosphere transmission electron microscopy （TEM） have led to impressive progress towards the simulation of real-world reaction environments, allowing the atomic-scale recording of dynamic events. In this review, on the basis of the in situ research of our group, we outline the principles and features of the controlled-atmosphere TEM techniques and summarize the significant recent progress in the research activities on gas-solid interactions, including nanowire growth, catalysis, and metal failure. Additionally, the challenges and opportunities in the real-time observations on such platform are discussed.

关键词： controlled-atmospheretransmission electronmicroscopy (TEM) nanowire growth catalysis metal failure

Inorganic nanocrystals:From molecular design to systematic engineering

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2014年第6期12卷 1-10页

作者： Kai Wang Zhicheng zhang xun Wang Yadong Li Department of Chemistry Tsinghua University

Solution-based routes have been widely applied in the synthesis of *** is desirable to choose or design precursors,ligands,and solvent molecules at the molecular level to allow the synthesis of lowdimensional nanocrystals with various shapes and *** increasing requirements for the integration of the properties of nanocrystals have produced a high demand for the rational design and fine control of complex structures,in terms of both the composition and the *** meet this demand,researchers have developed new synthetic strategies to produce more complex and more functional *** procedures involve systematic engineering,which focuses on the whole synthetic procedure,instead of just the molecular *** review focuses mainly on the work of Yadong Li’s group over the last decade.

关键词： Molecular design Systematic engineering Synthesis Nanocrystal

High capacity lithium-manganese-nickel-oxide composite cathodes with low irreversible capacity loss and good cycle life for lithium ion batteries

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2016年第11期59卷 1479-1485页

作者： Jingwen zhang xun Guo Sumei Yao Xinping Qiu Key Lab of Organic Optoelectronics and Molecular Engineering Department of ChemistryTsinghua University

We report a method to eliminate the irreversible capacity of 0.4Li_2MnO_3·0.6LiNi_(0.5)Mn_(0.5)O_2(Li_(1.17)Ni_(0.25)Mn_(0.583)O_2) by decreasing lithium content to yield integrated layered-spinel *** patterns,High-resolution TEM image and electrochemical cycling of the materials in lithium cells revealed features consistent with the presence of spinel phase within the *** discharged to about 2.8 V,the spinel phase of LiM_2O_4(M=Ni,Mn) can transform to rock-salt phase of Li_2M_2O_4(M=Ni,Mn) during which the tetravalent manganese ions are reduced to an oxidation state of *** the spinel phase can act as a host to insert back the extracted lithium ions(from the layered matrix) that could not embed back into the layered lattice to eliminate the irreversible capacity loss and increase the discharge *** electrochemical properties at room temperature showed a high capacity(about 275 mAh g^(-1) at 0.1 C) and exhibited good cycling performance.

关键词： Lithium ion electrode composite materials Lithium-rich material spinel phase layered phase

Quantum uncertainty relations of Tsallis relative α entropy coherence based on MUBs

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2022年第1期74卷 31-39页

作者： fu-Gang zhang School of Mathematics and Information Science Nanchang Hangkong UniversityNanchang 330063China

In this paper,we discuss quantum uncertainty relations of Tsallis relative α entropy coherence for a single qubit system based on three mutually unbiased *** α∈[1/2,1)U(1,2],the upper and lower bounds of sums of coherence are ***,the above results cannot be verified directly for any α∈(0,1/2).Hence,we only consider the special case of α=1/n+1,where n is a positive integer,and we obtain the upper and lower *** comparing the upper and lower bounds,we find that the upper bound is equal to the lower bound for the special α=1/2,and the differences between the upper and the lower bounds will increase as α ***,we discuss the tendency of the sum of coherence,and find that it has the same tendency with respect to the different θ or φ,which is opposite to the uncertainty relations based on the Rényi entropy and Tsallis entropy.

关键词： quantum uncertainty relation Tsallis relativeαentropy of coherence the upper and lower bounds single qubit state MUB

Superconductivity in CuO_2 monolayer on cuprate substrates

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2016年第16期61卷 1236-1238页

作者： fu-Chun zhang Department of Physics Zhejiang University Hangzhou 310027 China

High transition temperatureeTcTsuperconductivity in cuprates remains to be one of the most challenging topics in condensed matter physics[1–5].Despite worldwide efforts in the past 30 years since its

关键词：高温超导 CuO2 铜基导电平面凝聚态物理转变温度层状结构铜氧化物

Loss-of-function mutations of microRNA-142-3p promote ASH1L expression to induce immune evasion and hepatocellular carcinoma progression

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2025年第1期31卷 126-145页

作者： Xing-Hui Yu Yan Xie Jian Yu Kun-Ning zhang Zhou-Bo Guo Di Wang Zhao-Xian Li Wei-Qi zhang Yu-Ying Tan Li zhang Wen-Tao Jiang School of Medicine Nankai UniversityTianjin 300192China Tianjin Key Laboratory of Molecular Diagnosis and Treatment of Liver Cancer Tianjin First Center HospitalTianjin 300192China Department of Liver Transplantation Tianjin First Center HospitalTianjin 300192China First Central Clinical School Tianjin Medical UniversityTianjin 300192China

BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated *** therapeutic targets are beneficial to treat and predict the ***,the exact molecular mechanisms leading to the progression of HCC are still *** has shown that the microRNA-142-3p level decreases in HCC,whereas bioinformatics analysis of the cancer genome atlas database shows the ASH1L expression increased among liver tumor *** this paper,we will explore the effects and mechanisms of microRNA-142-3p and ASH1L affect the prognosis of HCC patients and HCC cell bioactivity,and the association between *** To investigate the effects and mechanisms of microRNA-142-3p and ASH1L on the HCC cell bioactivity and prognosis of HCC *** In this study,we grouped HCC patients according to their immunohistochemistry results of ASH1L with pathological tissues,and retrospectively analyzed the prognosis of HCC ***,explored the roles and mechanisms of microRNA-142-3p and ASH1L by cellular and animal experiments,which involved the following experimental methods:Immunohistochemical staining,western blot,quantitative real-time-polymerase chain reaction,flow cytometric analysis,tumor xenografts in nude mice,*** statistical methods involved in this study contained t-test,one-way analysis of variance,theχ^(2)test,the Kaplan-Meier approach and the log-rank *** In this study,we found that HCC patients with high expression of ASH1L possess a more recurrence rate as well as a decreased overall survival ***1L promotes the tumorigenicity of HCC and microRNA-142-3p exhibits reduced expression in HCC tissues and interacts with ASH1L through targeting the ASH1L 3′untranslated ***,microRNA-142-3p promotes apoptosis and inhibits proliferation,invasion,and migration of HCC cell lines in vitro via *** the exploration mechanism,we found ASH1L may promote an immunosuppressive mi

关键词： Hepatocellular carcinoma MicroRNA-142-3p ASH1L Immune evasion Tumor immune microenvironment Apoptosis