Results 81 to 90 of about 28,648,109 (379)

Engineering the Link: From Genome Interaction Maps to Functional Insight

Advanced Biology, EarlyView.
Advances in chromosome conformation capture have revealed the genome's 3D organization, yet its causal impact on gene regulation remains elusive. This review highlights emerging genome‐engineering tools ‐ zinc fingers, TALEs, and CRISPR‐Cas9 ‐ that enable targeted manipulation of chromatin loops to dissect structure–function relationships. It discusses
Frido Petersen, Simon Westermann, Valeriia Smialkovska, Jan Mathony, Angelika Feldmann, Dominik Niopek   +5 more
wiley   +1 more source

Energy-Aware Sink Node Localization Algorithm for Wireless Sensor Networks

International Journal of Distributed Sensor Networks, 2015
Wireless sensor networks (WSNs) are a family of wireless networks that usually operate with irreplaceable batteries. The energy sources limitation raises the need for designing specific protocols to prolong the operational lifetime of such networks ...
Mohamed Mostafa Fouad, Vaclav Snasel, Aboul Ella Hassanien   +2 more
doaj   +1 more source

An Accurate and Efficient Analysis of a MBSFN Network

, 2014
A new accurate analysis is presented for an OFDM-based multicast-broadcast single-frequency network (MBSFN). The topology of the network is modeled by a constrained random spatial model involving a fixed number of base stations placed over a finite area ...
Talarico, Salvatore, Valenti, Matthew C.
core   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Slow flows of an relativistic perfect fluid in a static gravitational field

, 2000
Relativistic hydrodynamics of an isentropic fluid in a gravitational field is considered as the particular example from the family of Lagrangian hydrodynamic-type systems which possess an infinite set of integrals of motion due to the symmetry of ...
B. A. Dubrovin, E. A. Kuznetsov, H. Hasimoto, J. David Brown, M. I. Monastyrskii, N. Padhye, R. Salmon, R. Salmon, V. E. Zakharov, V. I. Il’gisonis, V. P. Ruban, V. P. Ruban   +11 more
core   +1 more source

Piezotronic Transistor Based on Topological Insulators [PDF]

ACS Nano, 2017
Piezotronics and piezophototronics are emerging fields by coupling piezoelectric, semiconductor, and photon excitation effects for achieving high-performance strain-gated sensors, LEDs, and solar cells. The built-in piezoelectric potential effectively controls carrier transport characteristics in piezoelectric semiconductor materials, such as ZnO, GaN,
Gongwei Hu, Yan Zhang, Lijie Li, Zhong Lin Wang   +3 more
openaire   +3 more sources

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Divisibility by 2 and 3 of certain Stirling numbers

, 2008
The numbers e_p(k,n) defined as min(nu_p(S(k,j)j!): j >= n) appear frequently in algebraic topology. Here S(k,j) is the Stirling number of the second kind, and nu_p(-) the exponent of p. The author and Sun proved that if L is sufficiently large, then e_p(
Davis, Donald M
core   +1 more source

Topological properties in ontology-based applications [PDF]

2011 11th International Conference on Intelligent Systems Design and Applications, 2011
Representation and reasoning with spatial properties is essential in several application domains where ontologies are being successfully applied; e.g., Information Fusion systems. This requires a full characterization of the semantics of relations such as adjacent, included, overlapping, etc.
Serrano, Miguel Á., Gómez Romero, Juan, Patricio Guisado, Miguel Ángel, García, Jesús, Molina, José M.   +4 more
openaire   +2 more sources

Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams

Advanced Engineering Materials, EarlyView.
This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier, Brett Emery, Jacob Miske, Jeffrey Lipton   +3 more
wiley   +1 more source