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Depth of closure:New calculation method based on sediment data

International Journal of Sediment Research 2018年第2期33卷 198-207页

作者： Luis Aragonés Jose Ignacio Pagán Isabel López José c.Serra Department of civil engineering University of Alicante Department of transportation ETSI Caminos Polytechnic University of Valencia

Obtaining depth of closure(Doc) in an accurate manner is a fundamental issue for coastal engineering,since good results for coastal structures and beach nourishment depend mainly on Doc. currently, there are two methods for obtaining the Doc, mathematical formulations and profile surveys. However, these methods can incur important errors if one does not take into account the characteristics and morphology of the area, or if one does not have a sufficiently long time series. In this work the Doc is obtained from the break in the trend of the sediment with the depth, that is, in general with the increase of the depth a decrease in the size of the sediment takes place. However, at one point this tendency changes and the size increases, and then decreases again. When comparing the point where the minimum sediment size occurs before the increase, it is observed that the error incurred is small compared to other methods. If the Standard Deviation of Depth change(SDDc) method is considered as the most accurate method, the error incurred by the proposed method is less than 7%. In addition, it can be seen that the dispersion of the sediment method always occurs outside the zone of bar movement. Whereas in the methods of profiles survey(using 2 cm precision profiles), sometimes the Doc is obtained within the active zone of bar movement. In addition, where the relative minimum of the median sediment size is found, and the sizes of 0.063 and 0.125 mm predominate in the composition of the sample. Therefore, this new method allows the precise location of the Doc to be obtained in a fast and simple way. Furthermore, this method has the advantage that it is not affected by the modifications that may be experienced by both the study area and the cross-shore beach profile.

关键词： Depth of closure Median sediment size Profile surveys Profile change GIS

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Spontaneous pneumothorax in a single lung transplant recipient-a blessing in disguise: A case report

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World Journal of clinical cases 2020年第14期8卷 3031-3038页

作者： Himanshu Deshwal Subha Ghosh Kathleen Hogan Olufemi Akindipe charles Randall Lane Atul c Mehta Division of Pulmonary Critical Care and Sleep MedicineNew York University Grossman School of MedicineNew YorkNY 10016United States Imaging Institute Section of Thoracic ImagingCleveland ClinicClevelandOH 44195United States Respiratory Institute Cleveland ClinicClevelandOH 44195United States

BAcKGROUND End-stage chronic obstructive pulmonary disease(cOPD)is one of the common lung diseases referred for lung *** to the international society of heart and lung transplantation,30%of all lung transplantations are carried out for cOPD *** compared to bilateral lung transplant,singlelung transplant(SLT)has similar short-term and medium-term results for *** patients with severe upper lobe predominant emphysema,lung volume reduction surgery is an excellent alternative which results in improvement in functional status and long-term *** 2018,endobronchial valves were approved by the Food and Drug Administration for severe upper lobe predominant emphysema as they demonstrated improvement in lung function,exercise capacity,and quality of ***,the role of endobronchial valves in native lung emphysema in SLT patients has not been *** SUMMARY We describe an unusual case of severe emphysema who underwent a successful SLT 15 years ago and had gradual worsening of lung function suggestive of chronic lung allograft ***,her lung function improved significantly after a spontaneous pneumothorax of the native lung resulting in auto-deflation of large *** This case highlights the clinical significance of native lung hyperinflation in single lung transplant recipient and how spontaneous decompression due to pneumothorax led to clinical improvement in our patient.

关键词： Native lung hyperinflation Single lung transplant Pneumothorax Bronchoscopic lung volume reduction Endobronchial valve case report

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菱沸石-粘土复合物在沥青精制中的应用(英文)

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催化学报 2008年第11期29卷 1084-1088页

作者：卞俊杰 Steven M.KUZNIcKI William c.MccAFFREY Andree KOENIG christopher c.H.LIN 阿尔伯塔大学化学与材料工程系加拿大阿尔伯塔省埃德蒙顿市T6G 2G6

阿尔伯塔的油砂资源日益成为北美重要的战略性能源供给.本实验室通过采用碱性条件下在高岭土表面上组装菱沸石的方法,合成了新型的菱沸石-粘土复合材料,并证明此复合材料是比菱沸石更好的油砂沥青精制剂.XRD,SEM,TEM,N2物理吸附和XPS表... 详细信息

阿尔伯塔的油砂资源日益成为北美重要的战略性能源供给.本实验室通过采用碱性条件下在高岭土表面上组装菱沸石的方法,合成了新型的菱沸石-粘土复合材料,并证明此复合材料是比菱沸石更好的油砂沥青精制剂.XRD,SEM,TEM,N2物理吸附和XPS表面元素分析结果表明,菱沸石-粘土复合材料具有大体积烃类分子可及的独特的外表面,该复合材料不仅可降低油砂沥青的裂解反应温度,同时还可大幅度脱除沥青中的硫、氮、镍和钒等杂质.

关键词：油砂沥青精制菱沸石高岭土

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Preparation and characterisation of solid dispersions of tanshinone ⅡA, cryptotanshinone and total tanshinones

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Asian Journal of Pharmaceutical Sciences 2017年第1期12卷 85-97页

作者： Xifeng Zhai chunguang Li George Binh Lenon charlie c.L.Xue Weize Li Traditional&complementary Medicine Program School of Health SciencesRMIT UniversityBundooraVictoriaAustralia School of Pharmaceutical Sciences Xi’an Medical UniversityXi’anChina center for complementary Medicine Research National Institute of Complementary MedicineUniversity of Western SydneyCampbelltown CampusPenrithNew SouthWalesAustralia

Total tanshinones are lipophilic active constituents extracted from Salvia miltiorrhiza *** ⅡA and cryptotanshinone are the major components in total ***, the bioavailability of both compounds is low due to poor water solubility. To enhance the solubility and dissolution rate of tanshinone ⅡA, cryptotanshinone and total tanshinones,three common used hydrophilic carriers including PEG 6000, poloxamer 188 and PVP K30 were used to prepare the solid dispersions at different ratios, respectively. The solid dispersions were characterised by scanning electron microscopy(SEM), differential scanning calorimetry(DSc) and Fourier transform infrared spectroscopy(FTIR). The results of powder X-ray diffraction confirmed the microcrystal state of total tanshinones in solid dispersions and no chemical interaction between total tanshinones and carriers was observed in FTIR spectra. The solubility and dissolution rate of tanshinone ⅡA and cryptotanshinone were significantly increased in all solid dispersions. Regarding tanshinone ⅡA, the solubility and dissolution rate of in solid dispersions prepared with poloxamer 188 were significantly higher than that with PEG 6000 and PVP K30. The higher solubility and dissolution rate of cryptotanshinone were obtained in solid dispersion of PVP K30 than that of PEG 6000 solid dispersions but no significant difference from poloxamer 188 solid dispersions. The results indicate that the superior carrier for preparation of tanshinone ⅡA and total tanshinones solid dispersions is poloxamer 188, and that for cryptotanshinone is PVP K30.

关键词： cryptotanshinone Tanshinone ⅡA Total tanshinones Solid dispersion Dissolution rate

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Heterogeneous transfer functions multi-layer perceptron (MLP) for meteorological time series forecasting

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International Journal of Modeling, Simulation, and Scientific computing 2015年第2期6卷 49-55页

作者： c.Voyant M.L.Nivet cPaoli M.Muselli G.Notton University of corsica SPE CNRS UMR 613420250 CorteFrance University of Galatasaray computer Engineering Department No:36 34357 Ortak¨oyIstanbulTurkey

In this paper,we propose to study four meteorological and seasonal time series(TS)coupled with a multi-layer perceptron(MLP)*** chose to combine two transfer functions for the nodes of the hidden layer,and to use a temporal indicator(time index as input)in order to take into account the seasonal aspect of the studied *** results of the prediction concern two years of measurements and the learning step,eight independent *** show that this methodology can improve the accuracy of meteorological data estimation compared to a classical MLP modeling with a homogenous transfer function.

关键词： Artificial neural network meteorology time series transfer function

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A comparative analysis of paddy crop biotic stress classification using pre-trained deep neural networks

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Artificial Intelligence in Agriculture 2022年第1期6卷 167-175页

作者： Naveen N.Malvade Rajesh Yakkundimath Girish Saunshi Mahantesh c.Elemmi Parashuram Baraki Department of Information Science and Engineering Smt.Kamala and Sri.Venkappa M.Agadi College of Engineering and TechnologyLakshmeshwar582116KarnatakaIndia Department of computer Science and Engineering K.L.E.Institute of TechnologyHubballi580030KarnatakaIndia Department of computer Science and Engineering Navkis College of EngineeringHassan573217KarnatakaIndia Department of computer Science and Engineering Smt.Kamala and Sri.Venkappa M.Agadi College of Engineering and TechnologyLakshmeshwar582116KarnatakaIndia Visvesvaraya Technological University Belagavi 590018KarnatakaIndia

The agriculture sector is no exception to the widespread usage of deep learning tools and *** this paper,an automated detection method on the basis of pre-trained convolutional Neural Network(cNN)models is proposed to identify and classify paddy crop biotic stresses from the field *** proposed work also provides the empirical comparison among the leading cNN models with transfer learning from the ImageNet weights namely,Inception-V3,VGG-16,ResNet-50,DenseNet-121 and *** spot,hispa,and leaf blast,three of the most common and destructive paddy crop biotic stresses that occur during the flowering and ripening growth stages are considered for the *** experimental results reveal that the ResNet-50 model achieves the highest average paddy crop stress classification accuracy of 92.61%outperforming the other considered cNN *** study explores the feasibility of cNN models for the paddy crop stress identification as well as the applicability of automated methods to non-experts.

关键词： Paddy crop Stress classification Biotic stress PlantVillage ImageNet Pre-trained cNN models

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Wavelets and Optical Flow Motion Estimation

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Numerical Mathematics(Theory,Methods and Applications) 2013年第1期6卷 116-137页

作者： P.Dérian P.Héas c.Herzet E.Mémin Departments of Physics and Geosciences California State University ChicoChicoCA 95929-0555USA INRIA Rennes-Bretagne Atlantique Campus de Beaulieu35042 Rennes CEDEXFrance

This article describes the implementation of a simple wavelet-based optical-flow motion estimator dedicated to continuous motions such as fluid flows. The waveletrepresentation of the unknown velocity field is considered. This scale-space representation, associated to a simple gradient-based optimization algorithm, sets up a welldefined multiresolution framework for the optical flow estimation. Moreover, a verysimple closure mechanism, approaching locally the solution by high-order polynomialsis provided by truncating the wavelet basis at fine scales. Accuracy and efficiency of theproposed method is evaluated on image sequences of turbulent fluid flows.

关键词： Wavelets optical flow motion estimation large displacements fluid flows

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Trends in incidence and management of cancer of the ampulla of Vater

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World Journal of Gastroenterology 2014年第29期20卷 10144-10150页

作者： Florian Rostain Samia Hamza Antoine Drouillard Jean Faivre Anne-Marie Bouvier c?me Lepage Registre Bourguignon des cancers Digestifs INSERM U866CHU de DijonFaculté de Médecine21079 Dijon CedexFrance

AIM: To provide trends in incidence, management and survival of cancer of the ampulla of Vater in a well-defined French population.

关键词： cancer of the ampulla of Vater Incidence Survival Treatment Epidemiology

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An Immersed Interface Method for the Simulation of Inextensible Interfaces in Viscous Fluids

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communications in computational Physics 2012年第3期11卷 925-950页

作者： Zhijun Tan D.V.Le K.M.Lim B.c.Khoo Guangdong Province Key Laboratory of computational Science&School of Mathematics and computational Science Sun Yat-senUniversityGuangzhou 510275China Institute of High Performance computing 1 Fusionopolis Way#16-16 ConnexisSingapore 138632Singapore Singapore-MIT Alliance 4 Engineering Drive 3National University of SingaporeSingapore 117576Singapore Department of Mechanical Engineering National University of Singapore10 Kent Ridge CrescentSingapore 119260Singapore

In this paper,an immersed interface method is presented to simulate the dynamics of inextensible interfaces in an incompressible *** tension is introduced as an augmented variable to satisfy the constraint of interface inextensibility,and the resulting augmented system is solved by the GMRES *** this work,the arclength of the interface is locally and globally conserved as the enclosed region undergoes *** forces at the interface are calculated from the configuration of the interface and the computed augmented variable,and then applied to the fluid through the related jump *** governing equations are discretized on a MAc grid via a second-order finite difference scheme which incorporates jump contributions and solved by the conjugate gradient Uzawa-type *** proposed method is applied to several examples including the deformation of a liquid capsule with inextensible interfaces in a shear *** results reveal that both the area enclosed by interface and arclength of interface are conserved well *** provide further evidence on the capability of the present method to simulate incompressible flows involving inextensible interfaces.

关键词： Inextensible interface Stokes flows singular force immersed interface method cGUzawa method front tracking

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causal role of Helicobacter pylori infection in gastric cancer: An Asian enigma

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World Journal of Gastroenterology 2006年第9期12卷 1346-1351页

作者： Kartar Singh Uday c Ghoshal Department of Gastroenterology Sanjay Gandhi Postgraduate Institute of Medical Sciences

Helicobacter pylori （H pylori） has been etiologically linked to gastric cancer. H pylori infection is more frequent in less developed Asian countries like India, Bangladesh, Pakistan, and Thailand and is acquired at early age than in more developed Asian countries like Japan and china. Frequency of gastric cancer, however, is very low in India, Bangladesh, Pakistan and Thailand compared to that in Japan and china. Similar enigma has been reported from Africa as compared to the West. Seroprevalence of HpyloN infection in adult populations of India, Bangladesh, Pakistan and Thailand varies from 55% to 92%. In contrast, seroprevalence of H pylon in chinese and Japanese adults is 44% and 55%, respectively. Annual incidence rate of gastric cancer in India, Bangladesh, and Thailand is 10.6, 1.3, 7.1 per 100 000 populations, respectively; in contrast, that in china and Japan is 32-59 and 80-115 per 100 000 populations, respectively. Several studies from India failed to show higher frequency of H pylori infection in patients with gastric cancer than controls. Available evidences did not support difference in H pylori strains as an explanation for this enigma. Despite established etiological role of H pylon, situation is somewhat enigmatic in Asian countries because in countries with higher frequency of infection, there is lower rate of gastric cancer. Host＇s genetic makeup and dietary and environmental factors might explain this enigma. Studies are urgently needed to solve this issue.

关键词： Stomach cancer Helicobacter pylori Tropical countries carcinogenesis Infectious diseases

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