نتایج جستجو برای: characteristic length

تعداد نتایج: 473786  

2002
N. C. BARTELT T. L. EINSTEIN

Near a second order phase boundary the leading thermal dependence of the integrated intensities of “extra” LEED beams is proportional to q JTT,I’-” for T P T,, where (Y is the specific heat critical exponent. This behavior occurs when the correlation length exceeds the characteristic length of the instrument but is less than the characteristic size of defect-free regions. We illustrate these id...

2009
Yoshifumi SAITOU Akira TSUSHIMA

To optimize the “Face-to-face Double Probe (FDP)” method, which is proposed by the authors to measure the Mach number of a plasma flow [Saitou and Tsushima, Jpn. J. Appl. Phys. 40, L1387 (2001)], performances of an FDP have been investigated focusing on a characteristic length of a pair of electrodes using a two-dimensional particle-in-cell simulation. Resulting from the simulation, both the ch...

2005
A. I. A. Cunha M. C. Schneider C. Galup-Montoro C. D. C. Caetano M. B. Machado

This paper presents a very simple methodology for determining the effective channel length and width, which is independent of the determination of the threshold voltage. The procedure is based on measurement of the transconductance-to-current ratio (gm/ID) characteristic of the MOSFET in the linear region, from weak to moderate inversion. For the extraction of both the effective channel length ...

2010
DAKAI WANG AALDERT COMPAGNER

The randomness properties and the hierarchy of correlation coefficients are studied of approximate-maximum-length sequences, for which the characteristic polynomial is a product of several primitive polynomials. The randomness properties are almost the same as for maximum-length sequences characterized by a primitive polynomial with many terms and of the same degree. Reducible characteristic po...

Journal: :CoRR 2011
Aoyuan Peng Lianming Zhang

We proposed a deterministic multidimensional growth model for small-world networks. The model can characterize the distinguishing properties of many real-life networks with geometric space structure. Our results show the model possesses small-world effect: larger clustering coefficient and smaller characteristic path length. We also obtain some accurate results for its properties including degr...

1998
Craig A. Tracy Harold Widom

This paper is concerned with certain connections between the ensemble of n × n unitary matrices—specifically the characteristic function of the random variable tr(U)—and combinatorics—specifically Ulam’s problem concerning the distribution of the length of the longest increasing subsequence in permutation groups—and the appearance of Painlevé functions in the answers to apparently unrelated que...

Journal: :بین المللی مهندسی صنایع و مدیریت تولید 0
amir afshin fatahi assistant professor of industrial eng., islamic azad university, parand branch, iran rassoul noorossana professor of industrial eng., iran university of science and technology, iran pershang dokouhaki instructor of industrial eng., islamic azad university, parand branch, iran massoud babkhani assistant professor of industrial eng., iran university of science and technology, iran

there are miscellaneous quality characteristics in healthcare which are interested to be monitored. however, monitoring each characteristic needs a special statistical method. there are some characteristics with very small incidence rates that it’s usually considered not to be necessary to monitoring them, since their incidence rates are so small that p and np charts are not able to monitor the...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2004
Juan J Cerdà Tomás Sintes C M Sorensen A Chakrabarti

The dynamical scaling hypothesis for the structure factor, S (q) , in depletion-driven colloidal phase separation is studied by carrying out Brownian dynamics simulations. A true dynamical scaling is observed for shallow quenches into the two-phase coexistence region. In such a quench, compact clusters nucleate and grow with time and there is only one characteristic length scale in the system a...

فقیه‌زاده, سقراط, لمیعیان, مینور, مرصوصی, وجیهه, کلباسی, مانا, گیاهی, حمیده,

Background and Objective: Early prediction of prolonged pregnancy for prevention of fetal asphyxia is important. The present study aimed to examine transvaginal ultrasonographic measurement of the cervical length at week 37 as a predictor of prolonged pregnancy. Materials and Methods: This study was a descriptive-correlated design of ultrasound examination at week 37 of gestation in 126 singlet...

2008
Eric Rawdon Akos Dobay John C. Kern Kenneth C. Millett Michael Piatek Patrick Plunkett Andrzej Stasiak

We use numerical simulations to investigate how the chain length and topology of freely fluctuating knotted polymer rings affect their various spatial characteristics such as the radius of the smallest sphere enclosing momentary configurations of simulated polymer chains. We describe how the average value of a characteristic changes with the chain size and how this change depends on the topolog...

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