نتایج جستجو برای: impact zone length

تعداد نتایج: 1152267  

Journal: :Wiley interdisciplinary reviews. Developmental biology 2013
Tobias I Baskin

Plasticity, the hallmark of plant morphogenesis, extends to kinetics. To enhance acclimation, growing plant organs adeptly adjust their growth rate, up or down. In roots, rates of division and elemental expansion as well as the length of division and elongation zones are readily characterized because of their linear organization, radial symmetry, and indeterminate growth, and can be measured ac...

Fiber reinforced concrete (FRC) has been widely used due to its advantages over plain concrete such as high energy absorption, post cracking behaviour, flexural and impact strength and arresting shrinkage cracks. But there is a weak zone between fibers and paste in fiber reinforced concretes and this weak zone is full of porosity, especially in hybrid fiber reinforced concretes. So it is necess...

2013
Jost B. Jonas Leonard Holbach Songhomitra Panda-Jonas

PURPOSE To measure histomorphometrically the location of the peripapillary arterial circle of Zinn-Haller (ZHAC) and assess its associations with axial length. METHODS Using a light microscope, we measured the distance from the ZHAC to the peripapillary ring (optic disc border), the merging point of the dura mater with the posterior sclera ("dura-sclera point"), and the inner scleral surface....

Journal: :iranian journal of public health 0
a goshtasebi faculty of medicine, yasuj university of medical sciences, iran m vahdaninia dept. of social medicine, iranian institute for health sciences research, acecr, tehran, iran r gorgipour faculty of medicine, yasuj university of medical sciences, iran a samanpour faculty of medicine, yasuj university of medical sciences, iran f maftoon dept. of health services management, iranian institute for health sciences research, acecr, tehran, f farzadi dept. of health services management, iranian institute for health sciences research, acecr, tehran,

background: the pabon lasso model was  applied to assess the performance of six state-run hospitals in the province of kohgilooyeh & boyer-ahmad, to produce information that used by policy makers in their attempt to make the health care sys­tem more productive. methods: this cross-sectional study involved all the six public hospitals in the province, with 607 registered beds. data collec­tion a...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Douwe G Van Der Meer Richard E Zeebe Douwe J J van Hinsbergen Appy Sluijs Wim Spakman Trond H Torsvik

Climate trends on timescales of 10s to 100s of millions of years are controlled by changes in solar luminosity, continent distribution, and atmosphere composition. Plate tectonics affect geography, but also atmosphere composition through volcanic degassing of CO2 at subduction zones and midocean ridges. So far, such degassing estimates were based on reconstructions of ocean floor production for...

Journal: :Circulation research 1985
W Y Lew Z Y Chen B Guth J W Covell

To examine the interaction between normal and nonischemic areas of the left ventricle during acute ischemia, we implanted midwall ultrasonic segment length gauges in the ischemic zone and in nonischemic areas of the canine left ventricle. During acute ischemia, end-diastolic pressure and segment length in the nonischemic areas increased. There was no change from control in the segment length at...

2015
Rahul Arvo Jonas Ya Xing Wang Hua Yang Jian Jun Li Liang Xu Songhomitra Panda-Jonas Jost Bruno Jonas Laura Frishman

PURPOSE To measure the distance between the optic disc center and the fovea (DFD) and to assess its associations. METHODS The population-based cross-sectional Beijing Eye Study 2011 included 3468 individuals aged 50+ years. The DFD was measured on fundus photographs. RESULTS Readable fundus photographs were available for 2836 (81.8%) individuals. Mean DFD was 4.76 ± 0.34 mm (median: 4.74 mm...

Journal: :IEICE Transactions 2017
Takafumi Hayashi Yodai Watanabe Toshiaki Miyazaki Anh T. Pham Takao Maeda Shinya Matsufuji

The present paper introduces the construction of quadriphase sequences having a zero-correlation zone. For a zero-correlation zone sequence set of N sequences, each of length l, the cross-correlation function and the side lobe of the autocorrelation function of the proposed sequence set are zero for the phase shifts τ within the zero-correlation zone z, such that |τ | ≤ z (τ , 0 for the autocor...

Journal: :Journal of synchrotron radiation 2006
Levon Haroutunyan Gayane Hovhannisyan

The impact of decreased zone height on the focal properties of hard X-ray Bragg-Fresnel zone plates has been studied by numerical simulation. Decreased zone height allows for smaller zone widths and, although the efficiency of the lens is decreased, the signal-to-background ratio in the focal plane of the lens remains at a comparatively high level. This is distinct from an analogous case of ord...

2006
Eisuke Kita Tatsuhiro Tamaki Hikaru Shimizu

In this paper, we describe the simulation of the traffic flow on a road with a construction zone. The simulation model is based on the cellular automata and the stochastic velocity model. The simulation results on a road with a construction zone are compared with them on a road without a construction zone. Although the analytical study indicates that the traffic flow on a road with a constructi...

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