نتایج جستجو برای: and curves

تعداد نتایج: 16839527  

Journal: :Annals OR 2001
Jie Sun Jiapu Zhang

Global convergence results are derived for well-known conjugate gradient methods in which the line search step is replaced by a step whose length is determined by a formula. The results include the following cases: 1. The Fletcher-Reeves method, the Hestenes-Stiefel method, and the Dai-Yuan method applied to a strongly convex LC objective function; 2. The Polak-Ribière method and the Conjugate ...

Journal: :Medical History 1994
Hilary Marland

perfused organs to examine sugar catabolism and metabolism, Holmes underscores the relationship between the laboratory elucidation of a significant intermediate compound like acetone and the clinical knowledge of ketone body production in diabetes. But, he concludes, the early-twentieth-century integrative optimism evaporated, to be re-formulated in the 1930s with the announcement of the "Embde...

1999
Chandrajit L. Bajaj Guoliang Xu

In this paper (part three of the trilogy) we use low degree G 1 and G 2 continuous regular algebraic spline curves deened within parallelograms, to interpolate an ordered set of data points in the plane. We explicitly characterize curve families whose members have the required interpolating properties and possess a minimal number of innection points. The regular algebraic spline curves consider...

Journal: :international journal of civil engineering 0
k. wang college of civil science and engineering, yangzhou univercity s.f. yuan college of civil science and engineering, yangzhou univercity d.f. cao phd professor, college of civil science and engineering, yangzhou univercity w.z. zheng phd professor, school of civil engineering, harbin institute of technology

this paper describes experimental and numerical investigations on two specimens of frames composed of steel reinforced concrete beam and angle-steel concrete column under horizontal low cyclic loading. based on the test results, the relationship curves of the horizontal load-displacement and the failure modes are acquired. meanwhile the hysteretic behaviors, skeleton curves, stiffness degradati...

ژورنال: مهندسی دریا 2023

In this research paper, five centrifuge lateral loading tests of long piles with a considerable load eccentricity were carried out in the sand to investigate the impacts of the load eccentricity and pile length changes on the lateral behavior of a flexible pile beside the determination of experimental p-y curves. Comparing experimental test results with the recommended API (American Petroleum ...

Journal: :iranian journal of science and technology (sciences) 2015
h. kocayigit

in this paper, we give some characterizations for legendre spherical, legendre normal and legendre rectifying curves in the 3-dimensional sasakian space. furthermore, we show that legendre spherical curves are also legendre normal curves. in particular, we prove that the inverse of curvature of a legendre rectifying curve is a non-constant linear function of the arclength parameter.

Journal: :رادار 0
بهنام زارع ایاز قربانی

in this paper, some meteorological data, such as temperature, pressure and dew point temperature are used for extracting the atmospheric refractivity in different locations of iran. these data have been measured at different heights in twelve radiosonde sites of country by using meteorological balloons. the set of refractivity points obtained from data of each site are plotted as a function of ...

Asghar Kerayechiyan Atefeh Foroozandeh Mahdi Momennezhad Morteza Gachpazan Shahrokh Nasseri

Introduction 3D reconstruction of an object from its 2D cross-sections (slices) has many applications in different fields of sciences such as medical physics and biomedical engineering. In order to perform 3D reconstruction, at first, desired boundaries at each slice are detected and then using a correspondence between points of successive slices surface of desired object is reconstructed. Mate...

Journal: :jundishapur journal of health sciences 0
abolfazl payandeh department of biostatistics, mashhad university of medical sciences, mashhad, ir iran mohammad taghi shakeri department of community medicine, mashhad university of medical sciences, mashhad, ir iran mohammad safarian department of biostatistics, mashhad university of medical sciences, mashhad, ir iran hamed tabesh

reference curves are useful tools to monitor children’s growth status and can promote growth velocity in infants. in this regard, various parametric and semi-parametric methods are frequently used in the last decades. in the present paper, nonparametric quintile regression method is used as a powerful and applicable methodology to estimate height curves and normal values of height-for-age in ch...

Hamed Ghasemi HongSheng Zhao Hosein Haghi,

The rotation curves of a sample of 46 low- and high-surface brightness galaxies are considered in the context of Milgrom's modi_ed dynamics (MOND) to test a new interpolating function proposed by Zhao et al. (2010) [1] and compare with the results of simple interpolating function. The predicted rotation curves are calculated from the total baryonic matter based on the B-band surface photometry,...

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