Results 21 to 30 of about 2,202,861 (298)

Preparation, Characterization and Application of Ultrathick True Zero-Order KDP Crystal Waveplates

open access: yesIEEE Access, 2019
In crystal space, the birefringence varies continuously with respect to the propagating direction of the light wave. By utilizing this property, we design and fabricate a series of ultrathick true zero-order (TZ) waveplates based on KH2PO4 crystals with ...
Hongkai Ren   +5 more
doaj   +1 more source

The thickness of the calcified layer in different joints of a single individual [PDF]

open access: yes, 1987
The thickness of the articular cartilage and its calcified zone were both measured at specially chosen places in several limb joints from five subjects.
Müller-Gerbl, Magdalena   +2 more
core   +1 more source

The electronic thickness of graphene [PDF]

open access: yesScience Advances, 2020
The electronic thickness of graphene is measured by two capacitively coupled, atomically close graphene layers.
Rickhaus, Peter   +12 more
openaire   +7 more sources

The thick and thin of the central corneal thickness in glaucoma [PDF]

open access: yesEye, 2018
Central corneal thickness (CCT) is an important parameter in the assessment of any potential glaucoma patient. While it affects prognosis in ocular hypertension, its value in patients diagnosed with glaucoma is less certain. There are several biological factors and genetic components that may influence glaucoma progression, which have been associated ...
Graham W, Belovay, Ivan, Goldberg
openaire   +2 more sources

Ethnic Differences in Carotid Intima-Media Thickness Between UK Children of Black African-Caribbean and White European Origin. [PDF]

open access: yes, 2012
BACKGROUND AND PURPOSE: UK black African-Caribbean adults have higher risks of stroke than white Europeans and have been shown to have increased carotid intima-media thickness (cIMT).
Owen, C.G.   +41 more
core   +1 more source

Simultaneous measurement of distance and thickness of a thin metal plate with an electromagnetic sensor using a simplified model. [PDF]

open access: yes, 2004
This paper presents a simplified model which can describe the inductance change when an air-core coil is placed next to a thin nonmagnetic metallic plate.
Yin, Wuliang   +2 more
core   +3 more sources

Light Conduction Capability of Different Light-Transmitting [PDF]

open access: yesJournal of Dental Materials and Techniques, 2012
Introduction: Application of light transmitting posts to restore greatly damaged endodontically treated teeth has been increased. It is suspected that light intensity decreases as it passes throughout different materials.
Saied Mostafa Moazzami   +6 more
doaj  

Separating Thickness from Geometric Thickness [PDF]

open access: yes, 2002
We show that graph-theoretic thickness and geometric thickness are not asymptotically equivalent: for every t, there exists a graph with thickness three and geometric thickness >= t.
openaire   +3 more sources

Tree-Thickness and Caterpillar-Thickness under Girth Constraints [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2008
We study extremal problems for decomposing a connected $n$-vertex graph $G$ into trees or into caterpillars. The least size of such a decomposition is the tree thickness $\theta_{\bf T}(G)$ or caterpillar thickness $\theta_{\bf C}(G)$. If $G$ has girth $g$ with $g\ge 5$, then $\theta_{\bf T}(G)\le \lfloor{n/g}\rfloor+1$. We conjecture that the bound
Qi Liu 0022, Douglas B. West
openaire   +3 more sources

The thickness of the calcified layer of articular cartilage [PDF]

open access: yes, 1987
The thickness of both the articular cartilage and its calcified zone were measured at 25 carefully selected points in 8 human femoral heads, and the ratio of one to the other was found to be remarkably constant for each bone.
Müller-Gerbl, Magdalena   +2 more
core   +1 more source

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