Browsing Waterloo Research by Title
Now showing items 15741593 of 2490

A note on character sums in finite fields
(Elsevier, 201707)We prove a character sum estimate in Fq[t] and answer a question of Shparlinski. 
A note on intersecting hypergraphs with large cover number
(The Electronic Journal of Combinatorics, 20170811)We give a construction of rpartite runiform intersecting hypergraphs with cover number at least r−4 for all but finitely many r. This answers a question of AbuKhazneh, Barát, Pokrovskiy and Szabó, and shows that a ... 
A note on simplicial cliques
(Elsevier, 202109)Motivated by an application in condensed matter physics and quantum information theory, we prove that every nonnull evenholefree clawfree graph has a simplicial clique, that is, a clique K such that for every vertex v ... 
A note on the structure of matrix *subalgebras with scalar diagonals
(EleMath, 2021)We characterize those unital, selfadjoint algebras of complex n x n matrices that are simultaneously unitarily similar to algebras in which every member has a scalar diagonal. 
A novel cohesive zone modelling approach to represent mixed mode loading and bond line thickness effects
(Taylor and Francis, 20230228)Accurate representation of the tractionseparation response for mixed mode loading in a cohesive zone model (CZM) is critical to predicting the response of adhesive joints in a number of applications, including transportation ... 
A novel deflection shape function for rectangular capacitive micromachined ultrasonic transducer diaphragms
(Elsevier, 20150715)A highly accurate analytical deflection shape function that describes the deflection profiles of capacitive micromachined ultrasonic transducers (CMUTs) with rectangular membranes under electrostatic pressure has been ... 
A Novel Furnace Design Utilizing a Low Temperature Plastic Condensing Heat Exchanger
(198203)The initial phase of a research and development program for the Consumers' Gas Co. and the Federal Department of Energy, Mines and Resources to design a condensing heat exchanger/gas fired residential air furnace has been ... 
A novel membrane electrode assembly design for proton exchange membrane fuel cells: Characterization and performance evaluation
(Elsevier, 20190310)Conventional membraneelectrode assembly (MEA), a key component in proton exchange membrane fuel cells, only operates reasonably within a narrow range of operating conditions. In this study, a scaledup MEA that can perform ... 
A novel microfluidic resistive pulse sensor with multiple voltage input channels and a side sensing gate for particle and cell detection
(Elsevier, 20190404)Traditionally, a resistive pulse sensor (also known as Coulter counter) works by letting a particle pass through a small orifice in an electrolyte solution. The detection sensitivity mainly relies on the volume ratio of ... 
A novel micromechanical model of nonlinear compression hysteresis in compliant interfaces of multibody systems
(Springer, 201607)A micromechanical model of nonlinear hysteretic compression between interacting bodies of multibody systems, covered with fibrous structures, has been created and validated experimentally in this work. As an application, ... 
A Novel Percutaneous Electrode Implant for Improving Robustness in Advanced Myoelectric Control
(Frontiers Media, 20160331)Despite several decades of research, electrically powered hand and arm prostheses are still controlled with very simple algorithms that process the surface electromyogram (EMG) of remnant muscles to achieve control of one ... 
A novel selective disassembly sequence planning method for adaptive reuse of buildings
(Elsevier, 20180510)Adaptive reuse of buildings can be an attractive alternative to new construction in terms of sustainability and a circular economy. Achieving net benefits with adaptive reuse partly relies on efficiently planning building ... 
A Novel Test Geometry for Characterization of TractionSeparation Behaviour in Composite Laminates Under Mode I Delamination
(Springer, 20210416)The integration of composite laminates into automotive structures can provide weight reduction and improvement in occupant safety. However, the adoption of such materials requires characterization and efficient modeling ... 
Novelty Detection in Airport Baggage Conveyor GearMotors Using SynchroSqueezing Transform and SelfOrganizing Maps
(Prognostic and Health Management Society, 2013)A powerful continuous wavelet transform based signal processing tool named Synchrosqueezing transform (SST) has recently emerged in the context of nonstationary signal processing. Founded upon the premise of timefrequency ... 
An Npz Model With StateDependent Delay Due To SizeStructure In Juvenile Zooplankton
(Society for Industrial and Applied Mathematics, 2016)The study of planktonic ecosystems is important as they make up the bottom trophic levels of aquatic food webs. We study a closed nutrientphytoplanktonzooplankton (NPZ) model that includes size structure in the juvenile ... 
Nucleotide coordination with 14 lanthanides studied by isothermal titration calorimetry
(Elsevier, 20170609)With their hydrolytic, optical and magnetic properties, lanthanide ions (Ln3+) are versatile probes for nucleic acids. In addition, nucleotidecoordinated Ln3+ ions form useful nanoparticles. However, the thermodynamic ... 
Number of prime factors with a given multiplicity
(Cambridge University Press, 202203)Let k ⩾ 1 be a natural number and ωk (n) denote the number of distinct prime factors of a natural number n with multiplicity k. We estimate the first and second moments of the functions ωk with k ⩾ 1. Moreover, we prove ... 
The number of valid factorizations of Fibonacci prefixes
(Elsevier, 20190705)We establish several recurrence relations and an explicit formula for , the number of factorizations of the lengthn prefix of the Fibonacci word into a (not necessarily strictly) decreasing sequence of standard Fibonacci ... 
The number of valid factorizations of Fibonacci prefixes
(Elsevier, 20190705)We establish several recurrence relations and an explicit formula for V(n), the number of factorizations of the lengthn prefix of the Fibonacci word into a (not necessarily strictly) decreasing sequence of standard Fibonacci ... 
Numeric and Traffic Light Calorie Labels on Cafeteria Menus: Noticing, Use, and Perceptions Among Young Adults
(Oxford, 20200529)Objectives The objective of this study was to examine the impact of numeric versus interpretive calorie labelling on consumer noticing, use, and perceptions of labels. We hypothesized that due to their ataglance format, ...