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An integrated approach to site-specific management zone delineation

Frontiers of Agricultural Science and Engineering 2018年第4期5卷 432-441页

作者： Yuxin MIAO David J.MULLA Pierre c.robert Precision Agriculture center Department of SoilWater and ClimateUniversity of Minnesota

Dividing fields into a few relatively homogeneous management zones(MZs) is a practical and costeffective approach to precision agriculture. There are three basic approaches to MZ delineation using soil and/or landscape properties, yield information, and both sources of information. The objective of this study is to propose an integrated approach to delineating site-specific MZ using relative elevation, organic matter, slope, electrical conductivity, yield spatial trend map, and yield temporal stability map(ROSE-YSTTS) and evaluate it against two other approaches using only soil and landscape information(ROSE) or clustering multiple year yield maps(cMYYM). The study was carried out on two no-till corn-soybean rotation fields in eastern Illinois, USA. Two years of nitrogen(N) rate experiments were conducted in Field B to evaluate the delineated MZs for site-specific N management. It was found that in general the ROSE approach was least effective in accounting for crop yield variability(8.0%–9.8%), while the cMYYM approach was least effective in accounting for soil and landscape(8.9%–38.1%), and soil nutrient and pH variability(9.4%–14.5%). The integrated ROSE-YSTTS approach was reasonably effective in accounting for the three sources of variability(38.6%–48.9%, 16.1%–17.3% and 13.2%–18.7% for soil and landscape, nutrient and pH, and yield variability, respectively), being either the best or second best approach. It was also found that the ROSE-YSTTS approach was effective in defining zones with high,medium and low economically optimum N rates. It is concluded that the integrated ROSE-YSTTS approach combining soil, landscape and yield spatial-temporal variability information can overcome the weaknesses of approaches using only soil, landscape or yield information,and is more robust for MZ delineation. It also has the potential for site-specific N management for improved economic returns. More studies are needed to further evaluate their appropriateness for precision N

关键词： economically optimum nitrogen rate fuzzy cluster analysis precision nitrogen management site-specific management soil landscape property yield map

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A tunable diode laser absorption spectrometer for formaldehyde atmospheric measurements validated by simulation chamber instrumentation

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Journal of Environmental Sciences 2012年第1期24卷 22-33页

作者： V.catoire F.Bernard Y.Mbarki A.Mellouki G.Eyglunent V.Daёle c.robert Laboratoire de Physique et chimie de l'Environnement et de l'Espace (LPc2E) CNRS-Universit d'Orlans (UMR 6115)Observatoire des Sciences de l'Univers en rgion Centre (OSUC)3A Avenue de la Recherche Scientifique45071 Orlans Cedex 2France Institut de combustion ArothermiqueRactivit et Environnement (ICARE)CNRS (UPR 3021)Observatoire des Sciences de l'Univers en rgion Centre (OSUC)1C Avenue de la Recherche Scientifique45071 Orlans Cedex 2France

A tunable diode laser absorption spectrometer （TDLAS） for formaldehyde atmospheric measurements has been set up and validated through comparison experiments with a Fourier transform infrared spectrometer （FT-IR） in a simulation *** was generated in situ in the chamber from reaction of ethene with *** HcHO ro-vibrational line intensities （at 2909.71,2912.09 and 2914.46 cm-1） possibly used by TDLAS were calibrated by FT-IR spectra simultaneously recorded in the 1600–3200 cm-1 domain during ethene ozonolysis,enabling the on-line deduction of the varying concentration for HcHO in *** experimental line intensities values inferred confirmed the calculated ones from the updated HITRAN *** addition,the feasibility of stratospheric in situ HcHO measurements using the 2912.09 cm-1 line was *** TDLAS performances were also assessed,leading to a 2σ detection limit of 88 ppt in volume mixing ratio with a response time of 60 sec at 30 Torr and 294 K for 112 m optical *** part of this work,the room-temperature rate constant of this reaction and the HcHO formation yield were found to be in excellent agreement with the compiled literature data.

关键词： formaldehyde ethene ozonolysis in situ measurements stratosphere simulation chamber TDLAS FT-IR

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Spatiotemporal microRNA profile in peripheral nerve regeneration:miR-138 targets vimentin and inhibits Schwann cell migration and proliferation

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Neural Regeneration Research 2018年第7期13卷 1253-1262页

作者： Travis B.Sullivan Litchfield c.robert Patrick A.Teebagy Shannon E.Morgan Evan W.Beatty Bryan J.cicuto Peter K.Nowd Kimberly M.Rieger-christ David J.Bryan Department of Translational Research Lahey Hospital & Medical Center Tissue Engineering Laboratory Lahey Hospital & Medical Center Department of Plastic and Reconstructive Surgery Lahey Hospital & Medical Center

While the peripheral nervous system has regenerative ability,restoration of sufficient function remains a *** has been shown to be localized in axonal growth fronts and associated with nerve regeneration,including myelination,neuroplasticity,kinase signaling in nerve axoplasm,and cell migration;however,the mechanisms regulating its expression within Schwann cell（Sc） remain *** aim of this study was to profile the spatial and temporal expression profile of micro RNA（mi RNA） in a regenerating rat sciatic nerve after transection,and explore the potential role of mi R-138-5 p targeting vimentin in Sc proliferation and migration.A rat sciatic nerve transection model,utilizing a polyethylene nerve guide,was used to investigate mi RNA expression at 7,14,30,60,and 90 days during nerve *** levels of mi RNA expression were determined using microarray analysis and subsequently validated with quantitative real-time polymerase chain *** vitro assays were conducted with cultured Schwann cells transfected with mi RNA mimics and assessed for migratory and proliferative *** top seven dysregulated mi RNAs reported in this study have been implicated in cell migration elsewhere,and GO and KEGG analyses predicted activities essential to wound *** of one of these,mi RNA-138-5 p,into Scs reduced cell migration and *** R-138-5 p has been shown to directly target vimentin in cancer cells,and the luciferase assay performed here in rat Schwann cells confirmed *** results detail a role of mi R-138-5 p in rat peripheral nerve regeneration and expand on reports of it as an important regulator in the peripheral nervous system.

关键词： non-coding RNA neural regeneration nerve guide sciatic nerve transection peripheral nerve injury wound healing Gene Ontology processes Kyoto Encyclopedia of Genes and Genomes pathways microarray luciferase assay

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铁合金和金属粉末的燃烧特性

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铁合金 1986年第3期 41-44页

作者： c.robert Allenbach 蔡君威埃肯金属公司

引言几乎每个从事铁合金和金属生产、使用的人,都会在不同程度上和铁合金与金属粉末打交道。鉴定这些物料燃烧的特征,具有极大重要性,特别是当涉及到人身安全和防止财产损失的时候。本文目的即在于提供铁合金和金属粉尘燃烧特性的概况,... 详细信息

引言几乎每个从事铁合金和金属生产、使用的人,都会在不同程度上和铁合金与金属粉末打交道。鉴定这些物料燃烧的特征,具有极大重要性,特别是当涉及到人身安全和防止财产损失的时候。本文目的即在于提供铁合金和金属粉尘燃烧特性的概况,并把这些产品进行半定量分级。基本情况一般来说,任何细分散状的可燃固态物料,当飞扬到空气中悬浮起来,并在某种条件下着火后,都可产生粉尘爆炸。磨细或破碎的操作,由于意外事故或设计上的原因而

关键词：燃烧性试验粉尘浓度铁合金粉尘云粉尘爆炸化学爆炸燃烧特性金属粉末

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剪切速度对十字板剪切强度的影响

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江苏水利 1986年第2期 78-80页

作者： Mohsen sharifounnasab c.robert Ullrich 洪家宝

引言一般来说,十字板剪切试验是用四块叶片进行的,叶片高度是其直径的两倍。作用在叶片上的力矩使叶片大约以6度/分钟的速度转动,直到发生破坏。许多研究者已进行了十字板剪切试验研究（1,2,4,5,8,10）*。这些研究指出:十字板剪切强度... 详细信息

引言一般来说,十字板剪切试验是用四块叶片进行的,叶片高度是其直径的两倍。作用在叶片上的力矩使叶片大约以6度/分钟的速度转动,直到发生破坏。许多研究者已进行了十字板剪切试验研究（1,2,4,5,8,10）*。这些研究指出:十字板剪切强度可能受十字板几何形状的影响（1,8）,而且高塑性粘土的十字板剪切强度有随着剪切速度的加快而增大的趋势（10）。本文所介绍的是室内采用不同剪切速度进行一系列十字板剪切试验的结果。在低塑

关键词：剪切速度页岩皮尔碎屑岩十字板剪切抗剪强度力学强度剪切强度

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回收蒸汽及冷凝液以节能

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能源技术 1990年第2期38卷 58-58页

作者： c.robert 张声先

英国某纤维素制品公司,在干燥棉纸过程中浪费蒸汽地,干燥器在二个同时进行的操作中除去棉纸中的水份,即蒸汽注入干燥器的内鼓,使沿鼓的外周经过以加热纸的内表面,同时用燃料油加热空气用于吹干纸的外表面,过去这样产生的蒸汽完全忽视利... 详细信息

英国某纤维素制品公司,在干燥棉纸过程中浪费蒸汽地,干燥器在二个同时进行的操作中除去棉纸中的水份,即蒸汽注入干燥器的内鼓,使沿鼓的外周经过以加热纸的内表面,同时用燃料油加热空气用于吹干纸的外表面,过去这样产生的蒸汽完全忽视利用冷凝液返回系统以节约宝贵的能源。

关键词：蒸汽冷凝液回收节能

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回收蒸汽及冷凝液以节能

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能源技术 1989年第2期 57-57页

作者： c.robert D.A.Toy 张声先

英国某纤维素制品公司,在干燥棉纸过程中浪费蒸汽。干燥器在二个同时进行的操作中除去棉纸中的水份,即蒸汽注入干燥器的内鼓,使沿鼓的外周经过以加热纸的内表面,同时用燃料油加热空气,用于吹干纸的外表面,过去这样产生的蒸汽完全忽视利... 详细信息

英国某纤维素制品公司,在干燥棉纸过程中浪费蒸汽。干燥器在二个同时进行的操作中除去棉纸中的水份,即蒸汽注入干燥器的内鼓,使沿鼓的外周经过以加热纸的内表面,同时用燃料油加热空气,用于吹干纸的外表面,过去这样产生的蒸汽完全忽视利用冷凝液返回系统以节约宝贵的能源。经过改进,增加了一个蒸汽疏水器系统,冷凝液闪蒸罐以及冷凝液泵等设施以回收浪费的蒸汽及更好地操纵冷凝液的返回,

关键词：换热器闪蒸罐热交换器储罐冷凝液凝结液凝液泵

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Multi-Scale Dilated convolution Network for SPEcT-MPI cardiovascular Disease classification with Adaptive Denoising and Attenuation correction

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computer Modeling in Engineering & Sciences 2025年第1期142卷 299-327页

作者： A.robert Singh Suganya Athisayamani Gyanendra Prasad Joshi Bhanu Shrestha Department of computational Intelligence SRM Institute of Science and TechnologyKattankulathur603203Tamil NaduIndia School of computing Sastra Deemed to be UniversityThanjavur613401Tamil NaduIndia Department of Artificial Intelligence&Software Kangwon National UniversitySamcheok25913Republic of Korea Department of Information convergence System Graduate School of Smart ConvergenceKwangwoon UniversitySeoul01897Republic of Korea

Myocardial perfusion imaging(MPI),which uses single-photon emission computed tomography(SPEcT),is a well-known estimating tool for medical diagnosis,employing the classification of images to show situations in coronary artery disease(cAD).The automatic classification of SPEcT images for different techniques has achieved near-optimal accuracy when using convolutional neural networks(cNNs).This paper uses a SPEcT classification framework with three steps:1)Image denoising,2)Attenuation correction,and 3)Image *** denoising is done by a U-Net architecture that ensures effective image *** correction is implemented by a convolution neural network model that can remove the attenuation that affects the feature extraction process of ***,a novel multi-scale diluted convolution(MSDc)network is *** merges the features extracted in different scales and makes the model learn the features more *** scales of filters with size 3×3 are used to extract *** three steps are compared with state-of-the-art *** proposed denoising architecture ensures a high-quality image with the highest peak signal-to-noise ratio(PSNR)value of *** proposed classification method is compared with the five different cNN models,and the proposed method ensures better classification with an accuracy of 96%,precision of 87%,sensitivity of 87%,specificity of 89%,and F1-score of 87%.To demonstrate the importance of preprocessing,the classification model was analyzed without denoising and attenuation correction.

关键词： SPEcT-MPI cAD MSDc denoising attenuation correction classification

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Three-Stage Transfer Learning with AlexNet50 for MRI Image Multi-class classification with Optimal Learning Rate

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computer Modeling in Engineering & Sciences 2025年第1期142卷 155-183页

作者： Suganya Athisayamani A.robert Singh Gyanendra Prasad Joshi Woong cho School of computing Sastra Deemed to be UniversityThanjavur613401India Department of computational Intelligence SRM Institute of Science and TechnologyKattankulathur603203India Department of AI and Software Engineering Kangwon National UniversitySamcheok25913Republic of Korea Department of Electronics Information and Communication EngineeringKangwon National UniversitySamcheok25913Republic of Korea

In radiology,magnetic resonance imaging(MRI)is an essential diagnostic tool that provides detailed images of a patient’s anatomical and physiological *** is particularly effective for detecting soft tissue ***,radiologists manually interpret these images,which can be labor-intensive and time-consuming due to the vast amount of *** address this challenge,machine learning,and deep learning approaches can be utilized to improve the accuracy and efficiency of anomaly detection in MRI *** manuscript presents the use of the Deep AlexNet50 model for MRI classification with discriminative learning *** are three stages for learning;in the first stage,the whole dataset is used to learn the *** the second stage,some layers of AlexNet50 are frozen with an augmented dataset,and in the third stage,AlexNet50 with an augmented dataset with the augmented *** method used three publicly available MRI classification datasets:Harvard whole brain atlas(HWBA-dataset),the School of Biomedical Engineering of Southern Medical University(SMU-dataset),and The National Institute of Neuroscience and Hospitals brain MRI dataset(NINS-dataset)for *** hyperparameter optimizers like Adam,stochastic gradient descent(SGD),Root mean square propagation(RMS prop),Adamax,and AdamW have been used to compare the performance of the learning ***-dataset registers maximum classification *** evaluated the performance of the proposed classification model using several quantitative metrics,achieving an average accuracy of 98%.

关键词： MRI tumors classification AlexNet50 transfer learning hyperparameter tuning optimizer

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Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

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