Results 151 to 160 of about 6,718,270 (416)

Date Unknown: Letter From William and Mary Strain [PDF]

open access: yes, 1900
A handwritten letter from William and Mary Strain to their niece, likely a member of the Cornell family.
Strain, Mary, Strain, William
core   +1 more source

Back stress strengthening and strain hardening in gradient structure

open access: yes, 2016
We report significant back stress strengthening and strain hardening in gradient structured (GS) interstitial-free (IF) steel. Back stress is long-range stress caused by the pileup of geometrically necessary dislocations (GNDs).
Muxin Yang   +4 more
semanticscholar   +1 more source

Alkane biosynthesis gene expression and its increased production in recombinant cyanobacteria

open access: yesFEBS Open Bio, EarlyView.
The transcription and mRNA structures of the alkane biosynthesis genes ado/aar were analysed in the representative cyanobacteria PCC 6803 and SK1‐2‐1, which produce C17H36 and C15H32, respectively. PCC 6803 transconjugants carrying these genes showed a 1.8‐ to 2.3‐fold increase in C17H36 production.
Misato Nagao   +4 more
wiley   +1 more source

Straintronics in graphene nanoribbons [PDF]

open access: yesarXiv, 2019
The interplay between uniaxial strain and charging effects in zigzag graphene nanoribbons (ZGNR) is investigated by using non-equilibrium Green's function formalism. The I-V characteristic curves and especially negative differential resistance (NDR) induced by some quantum selection rules are affected by the type, strength and also direction of the ...
arxiv  

Shear friction capacity of recycled concretes

open access: yesMateriales de Construccion, 2010
The aim of this research was to determine the behavior of recycled concrete in response to the phenomenon of shear transfer. To perform it, a conventional control concrete and a concrete with 50% recycled coarse aggregate were designed.
B. González Fonteboa   +3 more
doaj   +1 more source

Dysfunctional tetraspanin 7 (TSP‐7) in Caenorhabditis elegans promotes; increases in average life‐ & health‐span, stress‐induced survival and motility

open access: yesFEBS Open Bio, EarlyView.
The C. elegans tetraspanin‐7 (tsp‐7) is a homologue of human CD63, which is a negative regulator of autophagy. The C. elegans strain, tm5761, has a dysfunctional (knockout) tsp‐7 gene. When compared to the wild‐type strain, the tm5761 strain shows increased: life‐ and health‐span; thermotolerance, and stress‐induced locomotion.
Brogan Jones   +2 more
wiley   +1 more source

Band Gap of Strained Graphene Nanoribbons [PDF]

open access: yesarXiv, 2009
The band structures of strained graphene nanoribbons (GNRs) are examined by a tight binding Hamiltonian that is directly related to the type and strength of strains. Compared to the two-dimensional graphene whose band gap remains close to zero even if a large strain is applied, the band gap of graphene nanoribbon (GNR) is sensitive to both uniaxial and
arxiv  

Interferometer Techniques for Gravitational-Wave Detection

open access: yesLiving Reviews in Relativity, 2010
Several km-scale gravitational-wave detectors have been constructed world wide. These instruments combine a number of advanced technologies to push the limits of precision length measurement.
Andreas Freise, Kenneth Strain
doaj  

Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions

open access: yesFEBS Open Bio, EarlyView.
The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik   +3 more
wiley   +1 more source

Ab-initio Study of Size and Strain Effects on the Electronic Properties of Si Nanowires [PDF]

open access: yesInternational Journal of Applied Mechanics, Vol. 1, No. 3 (2009) 483-499, 2010
We have applied density-functional theory (DFT) based calculations to investigate the size and strain effects on the electronic properties, such as band structures, energy gaps, and effective masses of the electron and the hole, in Si nanowires along the <110> direction with diameters up to 5 nm.
arxiv  

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