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549篇 您的检索式:作者名="Dagan"
    题名 作者 年代 出处 被引量
1基于视觉感知的图像检索的研究显示文摘基于内容图像检索的一个突出问题是图像低层特征与高层语义之间存在的巨大鸿沟.针对相关反馈和感兴趣区检测在弥补语义鸿沟时存在主观性强、耗时的缺点,提出了视觉信息是一种客观反映图像高层语义的新特征,基于视觉信息进行图像检索可以有效减小语义鸿沟;并在总结视觉感知的研究进展和实现方法的基础上,给出了基于视觉感知的图像检索在感兴趣区检测、图像分割、相关反馈和个性化检索四个方面的研究思路.张菁 沈兰荪 David Dagan Feng 2008电子学报2008,36,3:32
2Morphological Hydrogel Microfibers with MXene Encapsulation for Electronic Skin显示文摘Electronic skins with distinctive features have attracted remarkable attention from researchers because of their promising applications in flexible electronics.Here,we present novel morphologically conductive hydrogel microfibers with MXene encapsulation by using a multi-injection coflow glass capillary microfluidic chip.The coaxial flows in microchannels together with fast gelation between alginate and calcium ions ensure the formation of hollow straight as well as helical microfibers and guarantee the in situ encapsulation of MXene.The resultant hollow straight and helical MXene hydrogel microfibers were with highly controllable morphologies and package features.Benefiting from the easy manipulation of the microfluidics,the structure compositions and the sizes of MXene hydrogel microfibers could be easily tailored by varying different flow rates.It was demonstrated that these morphologically conductive MXene hydrogel microfibers were with outstanding capabilities of sensitive responses to motion and photothermal stimulations,according to their corresponding resistance changes.Thus,we believe that our morphologically conductive MXene hydrogel microfibers with these excellent features will find important applications in smart flexible electronics especially electronic skins.Jiahui Guo Yunru Yu Dagan Zhang Han Zhang Yuanjin Zhao 2021Research2021,,1:12
3Respiratory mechanics in brain injury: A review显示文摘Several clinical and experimental studies have shown that lung injury occurs shortly after brain damage. The responsible mechanisms involve neurogenic pulmonary edema, inflammation, the harmful action of neurotransmitters, or autonomic system dysfunction. Mechanical ventilation, an essential component of life support in brain-damaged patients(BD), may be an additional traumatic factor to the already injured or susceptible to injury lungs of these patients thus worsening lung injury, in case that non lung protective ventilator settings are applied. Measurement of respiratory mechanics in BD patients, as well as assessment of their evolution during mechanical ventilation, may lead to preclinical lung injury detection early enough, allowing thus the selection of the appropriate ventilator settings to avoid ventilatorinduced lung injury. The aim of this review is to explore the mechanical properties of the respiratory system in BD patients along with the underlying mechanisms, and to translate the evidence of animal and clinical studies into therapeutic implications regarding the mechanical ventilation of these critically ill patients.Antonia Koutsoukou Maria Katsiari Stylianos E Orfanos Anastasia Kotanidou Maria Daganou Magdalini Kyriakopoulou Nikolaos G Koulouris Nikoletta Rovina 2016World Journal of Critical Care Medicine2016,5,1:7
4The combined therapeutic effects of ^(131)iodinelabeled multifunctional copper sulfide-loaded microspheres in treating breast cancer显示文摘Compared to conventional cancer treatment, combination therapy based on well-designed nanoscale platforms may offer an opportunity to eliminate tumors and reduce recurrence and metastasis.In this study, we prepared multifunctional microspheres loading ^(131)I-labeled hollow copper sulfide nanoparticles and paclitaxel( ^(131)I-HCu SNPs-MS-PTX) for imaging and therapeutics of W256/B breast tumors in rats.18 F-fluordeoxyglucose(18 F-FDG) positron emission tomography/computed tomography(PET/CT) imaging detected that the expansion of the tumor volume was delayed(Po0.05) following intra-tumoral(i.t.) injection with ^(131)I-HCu SNPs-MS-PTX plus near-infrared(NIR) irradiation. The immunohistochemical analysis further confirmed the anti-tumor effect. The single photon emission computed tomography(SPECT)/photoacoustic imaging mediated by ^(131)I-HCu SNPs-MS-PTX demonstrated that microspheres were mainly distributed in the tumors with a relatively low distribution in other organs. Our results revealed that ^(131)I-HCu SNPs-MS-PTX offered combined photothermal, chemo-and radio-therapies, eliminating tumors at a relatively low dose, as well as allowing SPECT/CT and photoacoustic imaging monitoring of distribution of the injected agents non-invasively. The copper sulfide-loaded microspheres, ^(131)I-HCu SNPs-MS-PTX, can serve as a versatile theranostic agent in an orthotopic breast cancer model.Qiufang Liu Yuyi Qian Panli Li Sihang Zhang Zerong Wang Jianjun Liu Xiaoguang Sun Michael Fulham Dagan Feng Zhigang Chen Shaoli Song Wei Lu Gang Huang 2018Acta Pharmaceutica Sinica B2018,8,3:3
5A Review of Predictive and Contrastive Self-supervised Learning for Medical Images显示文摘Over the last decade, supervised deep learning on manually annotated big data has been progressing significantly on computer vision tasks. But, the application of deep learning in medical image analysis is limited by the scarcity of high-quality annotated medical imaging data. An emerging solution is self-supervised learning (SSL), among which contrastive SSL is the most successful approach to rivalling or outperforming supervised learning. This review investigates several state-of-the-art contrastive SSL algorithms originally on natural images as well as their adaptations for medical images, and concludes by discussing recent advances, current limitations, and future directions in applying contrastive SSL in the medical domain.Wei-Chien Wang Euijoon Ahn Dagan Feng Jinman Kim 2023Machine Intelligence Research2023,20,4:2
6Solute dispersion in unsaturated heterogenous soil at field scale applications显示文摘 DAGAN G 1979Soil Sci Soc Am J1979,43,:1
7Reduction ofantibody response to an 11-valent pneumococcal vaccine coad-ministered with a vaccine containing acellular pertussis com-ponents显示文摘Dagan R Goldblatt D Maleckar JR 2004Infect Immun2004,72,9:1
8Association between carriage of Streptococcus pneumoniae and Staphylococcus aureus in children显示文摘Regev-Yochay G Dagan R Raz M 2004Jama-Journal of the American Medical Association2004,292,6:1
9Proof and implementation of the stochastic formula for ideal gas, energy dependent scattering kernel显示文摘B. Becker R. Dagan G. Lohnert 2008Annals of Nuclear Energy2008,,4:1
10Association of the C677T polymorphism in the MTHFR gene with breast and/or ovarian cancer risk in Jewish women 显示文摘 Dagan E Israeli D 2000Eur J Cancer2000,36,:1
11Regularized image reconstruction with an anatomically adaptive prior for positron emission tomography显示文摘Chung Chan Roger Fulton David Dagan Feng Steven Meikle 2009Physics in Medicine and Biology2009,54,:1
12Use of pneumococcal conjugate vaccine to decrease ratesof bacterial meningitis 显示文摘Dagan R 2008Clin Infect Dis2008,46,11:1
13Adptive segmentation of textured images by using the coupled Markov random field model显示文摘Yong Xia Dagan Feng Rongchun Zhao 2006IEEE Transactions on Image Processing2006,15,11:1
14Toxicological approach for assessing the heavy metal binding capacity of soils 显示文摘Feng N Dagan R Bitton G 2007Soil&sediment contamination2007,16,5:1
15Quality of Life of well-differentiated thyroid carcinoma patients显示文摘Dagan T Bedrin L Horowitz Z 2004J Laryngol Otol2004,118,7:1
16Bootstrapping distributional feature vector quality显示文摘Geffet M Dagan I 0,,03:1
17Evidence to support the rationale that bacterial eradication in respiratory tract infection is an important aim of antimicrobial therapy 显示文摘Dagan R Klugman KP Craig WA 2001J Antimicrob Chemother2001,47,2:1
18TiO2 aerogels for photocatalytic decontamination of aquatic environments显示文摘Dagan G Tomkiewicz M 1993J Phys Chem1993,97,12:1
19The significance of heterogeneity of evolving scales to transport in porous formations显示文摘Dagan G 1994Water Resources Research1994,30,3:1
20A fluorescence-based, high-performance lipid chromatographic assay to determine acid sphigomyelinase activity and diagnose types A and B Niemann-Pick disesse 显示文摘He X Chen F Dagan A 2003Anal Biochem2003,314,1:1
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