Results 31 to 40 of about 53,720 (293)
Super-expanders and warped cones [PDF]
, 2019 For a Banach space $X$, we show that any family of graphs quasi-isometric to levels of a warped cone $\mathcal O_\Gamma Y$ is an expander with respect to $X$ if and only if the induced $\Gamma$-representation on $L^2(Y;X)$ has a spectral gap.
Sawicki, Damian
core +4 more sources
Local-To-Global Agreement Expansion via the Variance Method [PDF]
, 2020 Agreement expansion is concerned with set systems for which local assignments to the sets with almost perfect pairwise consistency (i.e., most overlapping pairs of sets agree on their intersections) implies the existence of a global assignment to the ...
Kaufman, Tali, Mass, David
core +1 more source
Testing Small Set Expansion in General Graphs [PDF]
, 2015 We consider the problem of testing small set expansion for general graphs. A graph $G$ is a $(k,\phi)$-expander if every subset of volume at most $k$ has conductance at least $\phi$.
Li, Angsheng, Peng, Pan
core +3 more sources
Numerical Modelling and Experimental Validation of Twin-Screw Expanders
Energies, 2020 Positive displacement machines have been identified as appropriate expanders for small-scale power generation systems such as Organic Rankine Cycles (ORCs).
Kisorthman Vimalakanthan +2 more
doaj +1 more source
Nowotwory, 2021 INTRODUCTION: Medical physicists planning radiation treatment are increasingly confronted with situations that require special attention. Undoubtedly, one such situation is the postoperative irradiation of a patient with breast cancer in which there is a
Piotr Kędzierawski +7 more
doaj +1 more source
Expander Graph and Communication-Efficient Decentralized Optimization
, 2016 In this paper, we discuss how to design the graph topology to reduce the communication complexity of certain algorithms for decentralized optimization. Our goal is to minimize the total communication needed to achieve a prescribed accuracy.
Chow, Yat-Tin +3 more
core +1 more source
, 2023 Dinitz, Schapira, and Valadarsky [Dinitz et al., 2017] introduced the intriguing notion of expanding expanders - a family of expander graphs with the property that every two consecutive graphs in the family differ only on a small number of edges. Such a family allows one to add and remove vertices with only few edge updates, making them useful in ...
Cohen, Gil, Cohen, Itay
openaire +2 more sources
Hot gas engine with dual crankshafts [PDF]
, 1981 A hot gas engine, such as a Stirling engine is described which comprises a displacer portion and an expander portion with a heat exchanger connected between them. The expander portion has a piston which is operatively connected to and rotates an expander
Mcdougal, A. R.
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Arteriovenous malformations (AVMs) are rare, high‐flow, vascular anomalies that can occur either sporadically or as part of a genetic syndrome. AVMs can progress with serious morbidity and even mortality if left unchecked. Sirolimus is an mTOR inhibitor that is effective in low‐flow vascular malformations; however, its role in AVMs is unclear.
Will Swansson +3 more
wiley +1 more source
Limaçon Technology in Power Generation
EncyclopediaLimaçon rotary machines are the heart of power generation systems, especially small- and micro-scale ones. These machines are the prime movers that play the main role in converting the potential energy to other useful forms of work, such as mechanical ...
Christopher Belfiore +3 more
doaj +1 more source