Results 31 to 40 of about 6,061,888 (289)
Crystals, 2023 This study examines the energy-localization performance of a one-dimensional phononic crystal (PnC) with a defect when exposed to burst waves of different cycle numbers under longitudinal waves.
Soo-Ho Jo
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Filling Defects in Small Bowel Urinary Conduits [PDF]
Journal of Urology, 1981 Radiographic evaluation of patients with urinary diversion by small bowel conduit includes excretory urography, loopography, and, if necessary, percutaneous pyelography. Five patients with discrete filling defects in their conduits are discussed. These defects represented stones (two cases), antirefluxing ureteral nipples, metastatic bladder carcinoma,
E S, Amis, J J, Cronan, R C, Pfister
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A local defect resonance for linear and nonlinear ultrasonic thermography [PDF]
, 2014 An efficient wave-defect interaction is the key to a high thermal response of flaws in ultrasonic thermography. To selectively enhance defect vibrations a concept of local defect resonance is developed and applied to ultrasonic activation of defects ...
Solodov, I., Rahammer, M., Busse, G.
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Extended Langford Sequences with Small Defects
Journal of Combinatorial Theory, Series A, 1998 A \(k\)-extended Langford sequence of defect \(d\) and length \(m\) is a sequence \(s_1,\dots,s_{2m+1}\) in which \(s_k=\varepsilon\), where \(\varepsilon\) is the null symbol and each other member of the sequence comes from the set \(S=\{d,d+1,\dots,d+m-1\}\). Each \(j\in S\) occurs exactly twice in the sequence and the two occurences are separated by
Václav Linek, Zhike Jiang
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Defective Choosability of Graphs without Small Minors [PDF]
The Electronic Journal of Combinatorics, 2009 For each proper subgraph $H$ of $K_5$, we determine all pairs $(k,d)$ such that every $H$-minor-free graph is $(k,d)^*$-choosable or $(k,d)^-$-choosable. The main structural lemma is that the only 3-connected $(K_5-e)$-minor-free graphs are wheels, the triangular prism, and $K_{3,3}$; this is used to prove that every $(K_5-e)$-minor-free graph is 4 ...
Rupert G. Wood, Douglas R. Woodall
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Sensors, 2023 Insulator defect detection is of great significance to compromise the stability of the power transmission line. The state-of-the-art object detection network, YOLOv5, has been widely used in insulator and defect detection. However, the YOLOv5 network has
Tong Zhang +4 more
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Regeneration of the Gastrointestinal Tract After Using a Small Intestine Submucosa Patch—A Rat Model
BiomedicinesBackground: Necrotizing enterocolitis (NEC) is a life-threatening condition characterized by necrosis of the gastrointestinal tract caused by hypoperfusion and hypoxia-induced inflammation. Surgical treatment often requires resection, with high morbidity
Tamas Toth +4 more
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Journal of Algebra, 2015 Let $G$ be a finite solvable group, let $p$ be a prime such that $p \geq 5$ and $O_p(G)=1$, and we denote $|G|_p=p^n$, then $G$ contains a block of defect less than or equal to $\lfloor \frac {3n} 5 \rfloor$. Let $G$ be a finite solvable group and let $p^a$ be the largest power of $p$ dividing $χ(1)$ for an irreducible character $χ$ of $G$, we show ...
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Highly-Sensitive and Frequency-Selective Imaging of Defects via Local Defect Resonance [PDF]
, 2014 In this paper, a consistent way to enhance acoustic, optical and thermal defect responses is suggested by using selective ultrasonic activation of defects based on the concept of local defect resonance (LDR).
Solodov Igor +2 more
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A Method of Locating and Measuring Train Wheel Tread Defects Based on YOLOv3-tiny
Kongzhi Yu Xinxi Jishu, 2022 Aiming at the problem of insufficient detection frame size accuracy in the deep learning based wheelset tread defect detection algorithm, this paper proposes a tread defect detection algorithm based on YOLOv3-tiny and traditional image algorithm, which ...
JIN Kairong, WANG Junping, CHEN Shenglan
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