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Plate tectonics in the late Paleozoic

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Geoscience Frontiers 2014年第3期5卷 303-350页

作者： mathew Domeier Trond H.Torsvik Center for Earth Evolution and Dynamics(CEED) University of OsloNO-0316 OsloNorway Geodynamics NGUN-7491 TrondheimNorway School of Geosciences University of WitwatersrandWits 2050South Africa

As the chronicle of plate motions through time, paleogeography is fundamental to our understanding of plate tectonics and its role in shaping the geology of the present-day. To properly appreciate the history of tectonics--and its influence on the deep.Earth and climate-it is imperative to seek an accurate and global model of paleogeography. However, owing to the incessant loss of oceanic lithosphere through subduction, the paleogeographic reconstruction of ＇full-plates＇（including oceanic lithosphere） becomes increasingly challenging with age. Prior to 150 Ma ~60% of the lithosphere is missing and re- constructions are developed without explicit regard for oceanic lithosphere or plate tectonic principles; in effect, reflecting the earlier mobilistic paradigm of continental drift. Although these ＇continental＇ re- constructions have been immensely useful, the next-generation of mantle models requires global plate kinematic descriptions with full-plate reconstructions. Moreover, in disregarding （or only loosely applying） plate tectonic rules, continental reconstructions fail to take advantage of a wealth of additional information in the form of practical constraints. Following a series of new developments, both in geo- dynamic theory and analytical tools, it is now feasible to construct full-plate models that lend themselves to testing by the wider Earth-science community. Such a model is presented here for the late Paleozoic （410-250 Ma） together with a review of the underlying data. Although we expect this model to be particularly useful for numerical mantle modeling, we hope that it will also serve as a general framework for understanding late Paleozoic tectonics, one on which future improvements can be built and further tested.

关键词： Late Paleozoic Paleogeography Plate tectonics Plate kinematics Paleomagnetism

Early Cenozoic rapid flight enigma of the Indian subcontinent resolved:Roles of topographic top loading and subcrustal erosion

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Geoscience Frontiers 2017年第1期8卷 15-23页

作者： Muthuvairavasamy Ramkumar David Menier Manoj mathew M.Santosh Numair A.Siddiqui Department of Geology Periyar UniversitySalem 636011India South East Asia Carbonate Research Laboratory(SEACaRL) Universiti Teknologi Petronas31750 TronohMalaysia GMGL UMR CNRS 6538 Universite de Bretagne Sud56017 Vannes CedexFrance Department of Earth Sciences University of AdelaideSA 5005Australia School of Earth Sciences and Resources China University of Ceosciences Beijing29 Xueyuan RoadBeijing 100083China Department of Geosciences Universiti Teknologi Petronas31750 TronohMalaysia

Intrinsic magmatic processes are considered as critical operators of plate movements. Here we demonstrate the role of extrinsic processes consequent to intrinsic processes as a catalyst for anomalous rapid plate movement. The rapid and accelerated flight of the Indian subcontinent since Deccan volca- nism until its collision with Eurasia remains as one of the geological conundrums. Data on seismic to- mography, peninsular geomorphology and inferences on continuum of subcrustal structures are utilized to address this enigma. We propose geomorphic isostasy as the mechanism that has driven this fastest drift ever recorded in geological history. It was initiated by sudden instability after the Deccan volcanism and resultant extensive accumulation of lava pile over continental lithosphere of northern India, northern-eastern tilt due to crustal thickness heterogeneity and subcrustal thermal stratification. The drift was sustained by Carlsberg and Central Indian ridge-push until collision and sediment top loading at northeast thenceforth. These inferences and geomorphic isostasy as a catalytic mechanism necessitate variability of drift rates as integral inputs for any continental scale modeling.

关键词： Geomorphic isostasy Mantle plume Continental drift Plate reorganization India

AutoPhaseNN:unsupervised physics-aware deep.learning of 3D nanoscale Bragg coherent diffraction imaging

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npj Computational Materials 2022年第1期8卷 1146-1153页

作者： Yudong Yao Henry Chan Subramanian Sankaranarayanan Prasanna Balaprakash Ross J.Harder mathew J.Cherukara Advanced Photon Source Argonne National LaboratoryLemontIL60439USA Center for Nanoscale Materials Argonne National LaboratoryLemontIL60439USA Mathematics and Computer Science Argonne National LaboratoryLemontIL60439USA

The problem of phase retrieval underlies various imaging methods from astronomy to nanoscale *** phase retrieval methods are iterative and are therefore computationally *** learning(DL)models have been developed to either provide learned priors or completely replace phase ***,such models require vast amounts of labeled data,which can only be obtained through simulation or performing computationally prohibitive phase retrieval on experimental *** 3D X-ray Bragg coherent diffraction imaging(BCDI)as a representative technique,we demonstrate AutoPhaseNN,a DL-based approach which learns to solve the phase problem without labeled *** incorporating the imaging physics into the DL model during training,AutoPhaseNN learns to invert 3D BCDI data in a single shot without ever being shown real space *** trained,AutoPhaseNN can be effectively used in the 3D BCDI data inversion about 100×faster than iterative phase retrieval methods while providing comparable image quality.

关键词： coherent iterative replace

利用图像和机器学习检测大豆作物幼苗期玉米杂苗

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智慧农业（中英文） 2020年第3期2卷 61-74页

作者： Paulo FLORES 张昭 Jithin mathew Nusrat JAHAN John STENGER 北达科他州州立大学农业与生物工程系北达科他州法戈市58102美国北达科他州州立大学植物科学系北达科他州法戈市58102美国

在大豆-玉米轮作生产过程中,玉米杂苗会与大豆苗竞争水和肥料,而且很容易遮住大豆苗,影响害虫(如玉米根虫)的防控,降低大豆品质。因此,在大豆幼苗期及时检测出玉米杂苗并对其进行处理非常重要。传统的人工检测方法主观性强、效率低,传... 详细信息

在大豆-玉米轮作生产过程中,玉米杂苗会与大豆苗竞争水和肥料,而且很容易遮住大豆苗,影响害虫(如玉米根虫)的防控,降低大豆品质。因此,在大豆幼苗期及时检测出玉米杂苗并对其进行处理非常重要。传统的人工检测方法主观性强、效率低,传感器和算法的发展为自动检测玉米杂苗提供了更好的解决方案。本研究在温室环境下模仿田间条件,待玉米和大豆发芽后,连续5天用因特尔RealSense D435相机采集彩色图像,并人工裁剪幼苗图像区域,在此基础上对图像进行分割和去噪。在采集图像形状、色彩和纹理特征值后,对所采集的特征值进行权重分析,保留前10种重要的特征值导入基于特征的机器学习算法中进行模型训练和预测。预测结果表明,支持向量机模型(SVM)、神经网络(NN)和随机森林(RF)的预测精度分别为85.3%,81.5%和82.6%。将数据集导入GoogLeNet和VGG-16两种深度学习模型进行训练,预测精度分别为96.0%和96.2%。VGG-16模型在区分大豆幼苗和玉米杂苗中有较好的表现,彩色图像和VGG-16模型组成的系统可以自动检测大豆生长过程中玉米杂苗的情况,为农民提供准确的信息,帮助其进行生产决策和田间管理。

关键词：玉米-大豆轮作玉米杂苗图像处理机器学习深度学习支持向量机(SVM)

Human-Centered A.I. and Security Primitives

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Journal of Computer Science Research 2020年第4期2卷 32-35页

作者： Alex mathew Department of Cybersecurity Bethany CollegeUSA

The paper reviews how human-centered artificial intelligence and securityprimitive have influenced life in the modern world and how it’s useful inthe future. Human-centered A.I. has enhanced our capabilities by the wayof intelligence, human informed technology. It has created a technologythat has made machines and computer intelligently carry their *** security primitive has enhanced the safety of the data and increasedaccessibility of data from anywhere regardless of the password is *** has improved personalized customer activities and filled the gapbetween the human-machine. This has been successful due to the usageof heuristics which solve belowems by experimental, support vector machinewhich evaluates and group the data, natural language processingsystems which change speech to language. The results of this will lead toimage recognition, games, speech recognition, translation, and answeringquestions. In conclusion, human-centered A.I. and security primitivesis an advanced mode of technology that uses statistical mathematicalmodels that provides tools to perform certain work. The results keep onadvancing and spreading with years and it will be common in our lives.

关键词： Artificial Intelligence deep.learning Digital signatures Machine learning Private information retrieval

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肺栓塞结节

世界核心医学期刊文摘（心脏病学分册） 2007年第7期3卷 54-54页

作者： mathew J. Powari M. 马超 Department of Histopathology Royal Cornwall Hospital Truro TR1 3LJ United Kingdom

目的：描述肺栓塞的一种罕见形态学表现。病例报道：1例成年男性因在家中虚脱后入院，不久便被宣布死亡。该患者除BMI为34、吸烟和近期胸部感染刚出院以外，无血栓栓塞的易感因素、危险因素或表现。尸检发现死亡系肺栓塞合并小腿深静脉... 详细信息

目的：描述肺栓塞的一种罕见形态学表现。病例报道：1例成年男性因在家中虚脱后入院，不久便被宣布死亡。该患者除BMI为34、吸烟和近期胸部感染刚出院以外，无血栓栓塞的易感因素、危险因素或表现。尸检发现死亡系肺栓塞合并小腿深静脉血栓形成所致。极其意外的是，在该肺血栓栓塞的上（头）端发现一结节。结论：本文是首次描述肺栓塞结节的病例报道，推测这种现象只可能在大静脉或穿经右心时出现。

关键词：肺栓塞结节深静脉血栓形成肺血栓栓塞病例报道形态学表现胸部感染易感因素

Application of artificial intelligence in clinical diagnosis and treatment:an overview of systematic reviews

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Intelligent Medicine 2022年第2期2卷 88-96页

作者： Shouyuan Wu Jianjian Wang Qiangqiang Guo Hui Lan Juanjuan Zhang Ling Wang Estill Janne Xufei Luo Qi Wang Yang Song Joseph Lmathew Yangqin Xun Nan Yang Myeong Soo Lee Yaolong Chen School of Public Health Lanzhou UniversityLanzhouGansu 730000China Institute of Global Health University of GenevaGenevaSwitzerland Institute of Mathematical Statistics and Actuarial Science University of BernBernSwitzerland Department of Health Research Methods Evidence and ImpactFaculty of Health SciencesMcMaster UniversityHamiltonCanada McMaster Health Forum McMaster UniversityHamiltonCanada Iberoamerican Cochrane Centre-Biomedical Research Institute Sant Pau(IIB Sant Pau) BarcelonaSpain Advanced Pediatrics Centre PGIMER ChandigarhChandigarhIndia Evidence-Based Medicine Center School of Basic Medical SciencesLanzhouGansu 730000China Korea Institute of Oriental Medicine DaejeonKorea University of Science and Technology DaejeonKorea London Southbank University LondonUK Tianjin University of Traditional Chinese Medicine Tianjin 301617China Research Unit of Evidence-Based Evaluation and Guidelines Chinese Academy of Medical Sciences(2021RU0170)School of Basic Medical SciencesLanzhou UniversityLanzhouGansu 730000China Lanzhou University Institute of Health Data Science LanzhouGansu 730000China Key Laboratory of Evidence Based Medicine&Knowledge Translation of Gansu Province LanzhouGansu 730000China

Objective This study aimed to summarize the characteristics and methodological quality of systematic reviews on the application of artificial intelligence(AI)in clinical diagnosis and *** We systematically searched seven English-and Chinese-language literature databases to identify sys-tematic reviews on the application of AI,deep.learning,or machine learning in the diagnosis and treatment of any disease published in *** evaluated the methodological quality of the included systematic reviews using“A Measurement tool for the assessment of multiple systematic reviews”(AMSTAR).We also conducted meta-analyses on the diagnostic accuracy of AI on selected disease categories with a large number of included studies and low clinical *** A total of 40 systematic reviews reporting 1,083 original studies were included,covering 31 diseases from 11 groups of *** systematic reviews were related to neoplasms and nine were systematic reviews related to diseases of the digestive *** selected digestive system diseases for the *** pooled sensitivities(with 95%confidence interval(CI))of AI to assist the diagnosis of helicobacter pylori,gastrointestinal ulcers,hemorrhage,esophageal tumors,gastric tumors,and intestinal tumors(with 95%CI)were 0.91(0.83-0.95),0.99(0.76-1.00),0.95(0.83-0.99),0.90(0.85-0.93),0.90(0.82-0.95),and 0.93(0.88-0.96),respectively,and the pooled specificities were 0.82(0.77-0.87),0.97(0.86-1.00),1.00(0.99-1.00),0.80(0.71-0.87),0.93(0.87-0.97),and 0.89(0.85-0.92),*** AMSTAR items“the list of included studies”(n=39,97.5%)and“the characteristics of the included studies”(n=39,97.5%)had the highest compliance among the reviews;the compliance was relatively low to the items“the consideration of publication status”(n=1,2.5%),“the consideration of scientific quality”(n=19,47.5%),“data synthesis methods”(n=18,45.0%),and“the evaluation of publication bias”(n=13,32.5%).Conclusions The main subjects

关键词： Artificial intelligence Overview of systematic reviews Diagnosis Treatment