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Soil Properties and Wheat growth and Nutrients as Affected by Compost Amendment Under Saline Water Irrigation

Pedosphere 2011年第6期21卷 773-781页

作者： A.m.mAHDY Department of Soil and Water College of Agriculture(Elshatby)Alexandria University

A greenhouse experiment was conducted to test and compare the suitability of saline compost and saline irrigation water for nutrient status amendment of a slightly productive sandy clay loam soil, to study the macronutrient utilization and dry matter production of wheat （Triticum aestivum c.v. gemmiza 7） grown in a modified soil environment and to determine the effects of compost and saline irrigation water on soil productivity. The sandy clay loam soil was treated with compost of five rates （0, 24, 36, 48, and 60 m3 ha-1, equivalent to 0, 3, 4.5, and 6 g kg-1 soil, respectively） and irrigation water of four salinity levels （0.50 （tap water）, 4.9, 6.3, and 8.7 dS m-l）. The results indicated that at harvest, the electrical conductivity （EC） of the soil was significantly （P 〈 0.05） changed by the compost application as compared to the control. In general, the soil salinity significantly increased with increasing application rates of compost. Soluble salts, K, C1, HCO3, Na, Ca, and mg, were significantly increased by the compost treatment. Soil sodium adsorption ratio （SAR） was significantly affected by the salinity levels of the irrigation water, and showed a slight response to the compost application. The soil organic carbon content was also significantly （P 〈 0.05） affected by application of compost, with a maximum value of 31.03 g kg-1 recorded at the compost rate of 60 m3 ha-1 and the irrigation water salinity level of 8.7 dS m-1 and a minimum value of 12.05 g kg-1 observed in the control. The compost application produced remarkable increases in wheat shoot dry matter production. The maximum dry matter production （75.11 g pot-1） occurred with 60 ma ha-1 compost and normal irrigation water, with a minimum of 19.83 g pot-1 with no addition of compost and irrigation water at a salinity level of 8.70 dS m-1. Significant increases in wheat shoot contents of K, N, P, Na, and C1 were observed with addition of compost. The relatively high shoot N values may be attributed

关键词： electrical conductivity plant dry matter soil organic C soil sodium adsorption ratio soluble salts

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Effect of Element Distortion on the Numerical Dispersion of Spectral Element methods

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Communications in Computational Physics 2011年第4期9卷 937-958页

作者： S.P.Oliveira g.Seriani Departamento de matematica Universidade Federal do ParanaCuritiba-PR81531-980Brazil Istituto Nazionale di Oceanografia e di geofisica Sperimentale Borgo Grotta Gigante42/cSgonico(TS)34010Italy

Spectral element methods are well established in the field of wave propagation,in particular because they inherit the flexibility of finite element methods and have low numerical dispersion *** latter is experimentally acknowledged,but has been theoretically shown only in limited cases,such as Cartesian *** is well known that a finite element mesh can contain distorted elements that generate numerical errors for very large *** the present work,we study the effect of element distortion on the numerical dispersion error and determine the distortion range in which an accurate solution is obtained for a given error *** also discuss a double-grid calculation of the spectral element matrices that preserves accuracy in deformed geometries.

关键词： Spectral element method dispersion analysis slivering

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How plants grow up

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Journal of Integrative Plant Biology 2019年第3期61卷 257-277页

作者： Sarah m mcKim Division of Plant Sciences University of Dundee at The James Hutton Institute

A plant's lateral structures, such as leaves,branches and flowers, literally hinge on the shoot axis,making its integrity and growth fundamental to plant *** all plants, subapical proliferation within the shoot tip displaces cells downward to extrude the cylindrical *** the transition to flowering, many plants show extensive axial elongation associated with increased subapical proliferation and expansion. However, the cereal grasses also elongate their stems, called culms, due to activity within detached intercalary meristems which displaces cells upward, elevating the grain-bearing inflorescence. Variation in culm length within species is especially relevant to cereal crops, as demonstrated by the high-yielding semi-dwarfed cereals of the green Revolution. Although previously understudied, recent renewed interest the regulation of subapical and intercalary growth suggests that control of cell division planes,boundary formation and temporal dynamics of differentiation, are likely critical mechanisms coordinating axial growth and development in plants.

关键词： plants grow up^FA lateral structures

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Aging Coefficient, Creep Coefficient and Extrapolating Aging Coefficient from Short Term Test for Sealed Concrete

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Journal of Wuhan University of Technology(materials Science) 2011年第1期26卷 154-159页

作者： Shrestha K m College of Civil Engineering Fuzhou University

Aging coefficient and creep coefficient are important parameters for creep analysis of any structure. With the aim to obtain those parameters, an experimental investigation is carried out on sealed concrete. Altogether ten specimens were tested, out of which four were for creep, two for shrinkage and remaining four for relaxation test. A year of relaxation test and two years of creep test results were analyzed to compute aging coefficient and creep coefficient. From regression analysis of observed and calculated aging coefficient using formula of Bazant and Kim, modification for aging coefficient is performed and extrapolation equations are generated. Instead of ACI model, B3 model has been used to obtain compliance function as the parameters of B3 model seems more relevant to creep mechanism of concrete compared to that of ACI model.

关键词： stress strength ratio creep test experimental study B3 model regression analysis

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A literature review of cost-effectiveness of intravenous recombinant tissue plasminogen activator for treating acute ischaemic stroke

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Stroke & Vascular Neurology 2017年第2期2卷 73-83页

作者： Heesoo Joo guijing Wang mary g george Division for Heart Disease and Stroke Prevention CDCIHRC Inc.AtlantaGeorgiaUSA Division for Heart Disease and Stroke Prevention CDCAtlantaGeorgiaUSA

Background Intravenous recombinant tissue plasminogen activator(IV rtPA)is recommended treatment for patients with acute ischaemic stroke,but the cost-effectiveness of IV rtPA within different time windows after the onset of acute ischaemic stroke is not well *** To conduct a literature review of the cost-effectiveness studies about IV rtPA by treatment *** of review A literature search was conducted using mEDLINE,EmBASE,CINAHL and Cochrane Library,with the keywords acute ischemic stroke,tissue plasminogen activator,cost,economic benefit,saving and incremental cost-effectiveness *** review is limited to original research articles published during 1995-2016 in English-language peer-reviewed *** found 16 studies meeting our criteria for this *** of them were cost-effectiveness studies of IV rtPA treatment within 0-3 hours after stroke onset,2 studies within 3-4.5 hours,3 studies within 0-4.5 hours and 2 studies within 0-6 *** rtPA is a cost-saving or a cost-effectiveness strategy from most of the study *** one study showed incremental cost-effectiveness ratio of IV rtPA within 1 year was marginally above US$50000 per quality-adjusted life year *** rtPA within 0-3 hours after stroke led to cost savings for lifetime or 30 years and IV rtPA within 3-4.5 hours after stroke increased costs but still was *** The literature generally showed that IV rtPA was a dominant or a cost-effective strategy compared with traditional treatment for patients with acute ischaemic stroke without IV *** findings from the literature lacked generalisability because of limited data and various assumptions.

关键词： acute cost treatment

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Preconditioning Schur Complement Systems of Highly-Indefinite Linear Systems for a Parallel Hybrid Solver

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Numerical mathematics(Theory,methods and Applications) 2010年第3期3卷 352-366页

作者： I.Yamazaki E.g.Ng Lawrence Berkeley National Laboratory BerkeleyCaliforniaUSA

A parallel hybrid linear solver based on the Schur complement method has the potential to balance the robustness of direct solvers with the efficiency of preconditioned iterative ***,when solving large-scale highly-indefinite linear systems,this hybrid solver often suffers from either slow convergence or large memory requirements to solve the Schur complement *** overcome this challenge,we in this paper discuss techniques to preprocess the Schur complement systems in parallel. Numerical results of solving large-scale highly-indefinite linear systems from various applications demonstrate that these techniques improve the reliability and performance of the hybrid solver and enable efficient solutions of these linear systems on hundreds of processors,which was previously infeasible using existing state-of-the-art solvers.

关键词： Schur complement method preconditioning matrix preprocessing.

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Comment on “Atomic structure calculations for F-like tungsten” by S. Aggarwal [Chin. Phys B 23(2014) 093203]

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Chinese Physics B 2016年第4期25卷 98-103页

作者： Kanti m Aggarwal Astrophysics Research Centre School of Mathematics and Physics Queen's University Belfast

Recently, S. Aggarwal [Chin. Phys. B 23 （2014） 093203] reported energy levels, radiative rates, and the lifetimes for the lowest 60 levels belonging to the 2s22p5, 2s2p6, and 2s22p43g configurations of F-like tungsten. There is no discrepancy for his calculated energies for the levels and the radiative rates for the limited number of E1 transitions, but the reported results for the lifetimes are highly inaccurate. According to our calculations, errors in his reported lifetimes are up to 6 orders of magnitude for several levels. Here we report the correct lifetimes for future comparisons and applications, and also explain the reason for the discrepancies.

关键词： energy levels radiative rates lifetimes F-like tungsten

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Authigenic gypsum in gas-Hydrate Associated Sediments from the East Coast of India (Bay of Bengal)

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Acta geologica Sinica(English Edition) 2013年第3期87卷 749-760页

作者： m. KOCHERLA National Institute of Oceanography

Authigenic gypsum crystals, along with pyrite and carbonate mineralization, predominantly calcites were noticed in distinct intervals in a 32 m long piston core, collected in the gas hydratebearing sediments in the northern portion of the Krishna-godavari basin, eastern continental margin of India at a water depth of 1691 m. X-ray diffraction and energy dispersive spectrum studies confirm presence of pyrite, gypsum, calcite, and other mineral aggregates. The occurrence of gypsum in such deep sea environment is intriguing, because gypsum is a classical evaporite mineral and is under saturated with respect to sea water. Sedimentological, geochemical evidences point to diagenetic formation of the gypsum due to oxidation of sulphide minerals （i.e. pyrite）. Euhedral, transparent gypsum crystals, with pyrite inclusions are cemented with authigenic carbonates, possibly indicating that they were formed authigenically in situ in the gas hydrate-influenced environment due to late burial diagenesis involving sulphate reduction and anaerobic oxidation of methane （AOm）. Therefore, the authigenic gypsums found in sediments of the Krishna-godavari and mahanadi offshore regions could be seen as one of the parameters to imply the presence of high methane flux possibly from gas hydrate at depth.

关键词： authigenic gypsum pyrites gas-hydrates Krishna-godavari and mahanadi offshore Anaerobic Oxidation of methane (AOm) Eastern continental margin of India

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Novel treatment options for perforations of the upper gastrointestinal tract:Endoscopic vacuum therapy and over-the-scope clips

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World Journal of gastroenterology 2014年第24期20卷 7767-7776页

作者： Rudolf mennigen Norbert Senninger mike g Laukoetter Department of general and Visceral Surgery University Hospital MuensterD-48149 MuensterGermany

Endoscopic management of leakages and perforations of the upper gastrointestinal tract has gained great importance as it avoids the morbidity and mortality of surgical *** the past years,covered selfexpanding metal stents were the mainstay of endoscopic ***,two new techniques are now available that enlarge the possibilities of defect closure:endoscopic vacuum therapy(EVT),and over-the-scope clip(OTSC).EVT is performed by mounting a polyurethane sponge on a gastric tube and placing it into the *** suction is applied via the tube resulting in effective drainage of the cavity and the induction of wound healing,comparable to the application of vacuum therapy in cutaneous *** system is changed every 3-5 *** overall success rate of EVT in the literature ranges from 84%to 100%,with a mean of 90%;only few complications have been *** are loaded on a transparent cap which is mounted on the tip of a standard *** bringing the edges of the perforation into the cap,by suction or by dedicated devices,such as anchor or twin grasper,the OTSC can be placed to close the *** acute endoscopy associated perforations,the mean success rate is 90%(range:70%-100%).For other types of perforations(postoperative,other chronic leaks and fistulas)success rates are somewhat lower(68%,and59%,respectively).Only few complications have been *** first reports are promising,further studies are needed to define the exact role of EVT and OTSC in treatment algorithms of upper gastrointestinal perforations.

关键词： Upper gastrointestinal Perforation Fistula Endoscopy Over-the-scope clip Endoscopic vacuum therapy

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Stacking Ensemble Learning-Based Convolutional gated Recurrent Neural Network for Diabetes miletus

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Intelligent Automation & Soft Computing 2023年第4期36卷 703-718页

作者： g.geetha K.mohana Prasad Sathyabama Institute of Science and Technology 603202TamilnaduIndia SRm Institute of Science and Technology 603202TamilnaduIndia

Diabetes mellitus is a metabolic disease in which blood glucose levels rise as a result of pancreatic insulin production *** causes hyperglycemia and chronic multiorgan dysfunction,including blindness,renal failure,and cardi-ovascular disease,if left *** of the essential checks that are needed to be performed frequently in Type 1 Diabetes mellitus is a blood test,this procedure involves extracting blood quite frequently,which leads to subject discomfort increasing the possibility of infection when the procedure is often ***-ing methods used for diabetes classiﬁcation have less classiﬁcation accuracy and suffer from vanishing gradient problems,to overcome these issues,we proposed stacking ensemble learning-based convolutional gated recurrent neural network(CgRNN)metamodel *** proposed method initially performs outlier detection to remove outlier data,using the gaussian distribution method,and the Box-cox method is used to correctly order the *** the outliers’detec-tion,the missing values are replaced by the data’s mean rather than their *** the stacking ensemble base model,multiple machine learning algorithms like Naïve Bayes,Bagging with random forest,and Adaboost Decision tree have been *** meta model uses two hidden layers Long-Short-Time memory(LSTm)and gated Recurrent Unit(gRU)to calculate the weight matrix for diabetes ***,the calculated weight matrix is passed to the soft-max function in the output layer to produce the diabetes prediction *** using LSTm-based Cg-RNN,the mean square error(mSE)value is 0.016 and the obtained accuracy is 91.33%.

关键词： Diabetes mellitus convolutional gated recurrent neural network gaussian distribution box-cox predict diabetes

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