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11篇 您的检索式:作者名="P.LIN"
    题名 作者 年代 出处 被引量
1基于扩张状态观测器的故障诊断方法研究(英文)显示文摘在分析现有基于观测器故障诊断方法的基础上,提出基于扩张状态观测器(ESO)故障诊断新方法。该方法利用ESO估计出系统的动态特性,完成对动态系统的故障检测与识别,同时,由于ESO只依赖于系统的输入参数bo和观测器的整定参数ωo,因而具有很强的鲁棒性。最后,借助于三水箱非线性动态系统验证了算法的有效性。叶大鹏 Paul P.Lin 高志强 2008仪器仪表学报2008,29,4:6
2Detection of diabetic retinopathy in its early stages using textural features of optical coherence tomography angiography显示文摘The aim of this study is to detect whether the quantitative textural features of optical coherencetomography angiography (OCTA) images can be used to detect the eyes in the early stage ofdiabetic retinopathy (DR) from eyes with diabetes and no DR (NDR). Textural features includingfractal dimension, contrast, correlation, entropy, energy, and homogeneity were calculatedfrom the OCTA images. The Student's t-test was performed to identify the textural featuresthat can be able to detect DR in the early stage. The area under the receiver operating characteristic(AUROC) curves, sensitivity, and specicity were calculated between the study groups.Our results indicated that the fractal dimension in ICP and SVP and the correlation in SVCshowed the statistical signicance between mild NPDR patients and NDR patients. The ROCanalysis results showed that the AUROC of the fractal dimension in ICP was 0.736 with 0.773sensitivity and 0.700 specicity. The cuto® point in ICP was 2.616. The OCTA-based fractaldimension was able to discriminate diabetic eyes with early retinopathy from healthy and NDRwith higher sensitivity and specicity. The OCTA-based correlation showed the power to differentiatethe mild NPDR eyes from the normal healthy and diabetic eyes. These results suggestthat texture-based features of OCTA have the potential to assist in the assessment of therapeuticinterventions to prevent early DR in diabetic subjects.W.Gao B.Li S.Chen Y.Shi P.Lin O.O.Myakinin V.P.Zakharov 2022Journal of Innovative Optical Health Sciences2022,15,1:1
3Successful resuscitation of bupivacaine‐induced cardiotoxicity in a neonate显示文摘ERICA P.LIN LORI A.ARONSON 2010Pediatric Anesthesia2010,,:1
4Label-free imaging immune cells and collagen in atherosclerosis with two-photon and second harmonic generation microscopy显示文摘Atherosclerosis has been recognized as a chronic inflammation disease,in which many types of cells participate in this process,including lymphocytes,macrophages,dendritic cells(DCs),mast cells,vascular smooth muscle cells(SMCs).Developments in imaging technology provide the capability to observe cellular and tissue components and their interactions.The knowledge of the functions of immune cells and their interactions with other cell and tissue components will facilitate our discovery of biomarkers in atherosclerosis and prediction of the risk factor of rupture-prone plaques.Nonlinear optical microscopy based on two-photon excited autofluorescence and second harmonic generation(SHG)were developed to image mast cells,SMCs and collagen in plaque ex vivo using endogenous optical signals.Mast cells were imaged with two-photon tryptophan autofluorescence,SMCs were imaged with two-photon NADH auto fluorescence,and collagen were imaged with SHG.This development paves the way for further study of mast cell degranulation,and the effects of mast cell derived mediators such as induced synthesis and activation of matrix metalloproteinases(MMPs)which participate in the degradation of collagen.Chunqiang Li Riikka K.Pastila Charles P.Lin 2016Journal of Innovative Optical Health Sciences2016,9,1:1
5Long‐term follow‐up of patients with giant cell tumor of the sacrum treated with selective arterial embolization显示文摘Patrick P.Lin Volkan B.Guzel Marcio F.Moura SidneyWallace Robert S.Benjamin Kristin L.Weber Frank A.Morello Ziya L.Gokaslan Alan W.Yasko 2002Cancer2002,,6:1
6Effect of 2–6 at.% Mo addition on microstructural evolution of Ti-44Al alloy显示文摘In order to understand the effect of Mo alloying on the microstructural evolution of TiAl alloy, the as-cast microstructure, heat treated microstructure characteristic, and hot compression microstructure evolution of Ti-44 A1 alloy have been studied in this work. The as-cast microstructure morphology changes from(γ+α_2)lamellar colony and β/β_0+γ mixture structure to β/β_0 phase matrix widmannstatten structure,when Mo content increases from 2 at.% to 6 at.%. Affected by the relationship between β phase and αphase, the angles between the lamellar orientation and the block β/β_0 phase are roughly at 0°, 45° and90°. Comparing with heat treatment microstructure, the hot compression microstructure contains lessβ/β_0 phase, however, the β/β_0 phase containing 2 Mo alloy and 3 Mo alloy hot compressed at 1275 ℃ has the inverse tendency. In addition,(α_2 +γ) colony is decomposed by the discontinuous transformation.S.Z.Zhang Z.W.Song J.C.Han C.J.Zhang P.Lin D.D.Zhu F.T.Kong Y.Y.Chen 2018Journal of Materials Science & Technology2018,34,7:1
7Average consensus in networks of multi-agents with both switching topology and coupling time-delay显示文摘P.Lin Y.M.Jia 0,,01:1
8Spillover Effects of FDI on Innovation in China:Evidence from Provincial Data显示文摘Cheung K P.Lin 0,,01:1
9Diagnostic Clues to Ectopic Pregnancy显示文摘Edward P.Lin Shweta Bhatt Vikram S 0,,:1
10An Efficient Operator-Splitting Method for Noise Removal in Images显示文摘In this work,noise removal in digital images is investigated.The importance of this problem lies in the fact that removal of noise is a necessary pre-processing step for other image processing tasks such as edge detection,image segmentation,image compression,classification problems,image registration etc.A number of different approaches have been proposed in the literature.In this work,a non-linear PDE-based algorithm is developed based on the ideas proposed by Lysaker,Osher and Tai[IEEE Trans.Image Process.,13(2004),1345-1357].This algorithm consists of two steps:flow field smoothing of the normal vectors,followed by image reconstruction.We propose a finite-difference based additive operator-splitting method that allows for much larger time-steps.This results in an efficient method for noise-removal that is shown to have good visual results.The energy is studied as an objective measure of the algorithm performance.D.Krishnan P.Lin X.-C.Tai 2006Communications in Computational Physics2006,1,5:0
11Analytic and Experimental Studies of the Errors in Numerical Methods for the Valuation of Options显示文摘The value of a European option satisfies the Black-Scholes equation with appropriately specified final and boundary conditions.We transform the problem to an initial boundary value problem in dimensionless form.There are two parameters in the coefficients of the resulting linear parabolic partial differential equation.For a range of values of these parameters,the solution of the problem has a boundary or an initial layer.The initial function has a discontinuity in the first-order derivative,which leads to the appearance of an interior layer.We construct analytically the asymptotic solution of the equation in a finite domain.Based on the asymptotic solution we can determine the size of the artificial boundary such that the required solution in a finite domain in x and at the final time is not affected by the boundary.Also,we study computationally the behaviour in the maximum norm of the errors in numerical solutions in cases such that one of the parameters varies from finite (or pretty large) to small values,while the other parameter is fixed and takes either finite (or pretty large) or small values. Crank-Nicolson explicit and implicit schemes using centered or upwind approximations to the derivative are studied.We present numerical computations,which determine experimentally the parameter-uniform rates of convergence.We note that this rate is rather weak,due probably to mixed sources of error such as initial and boundary layers and the discontinuity in the derivative of the solution.P.Lin J.J.H.Miller G.I.Shishkin 2008Numerical Mathematics(Theory,Methods and Applications)2008,1,2:0
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