Results 21 to 30 of about 6,063,159 (289)

Filling Defects in Small Bowel Urinary Conduits [PDF]

open access: yesJournal 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
openaire   +2 more sources

A local defect resonance for linear and nonlinear ultrasonic thermography [PDF]

open access: yes, 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.
core   +1 more source

Impact of Input Signal Characteristics on Energy-Localization Performance of a Phononic Crystal with a Defect: A Comparative Study of Burst and Continuous Wave Excitation

open access: yesCrystals, 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
doaj   +1 more source

Extended Langford Sequences with Small Defects

open access: yesJournal 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
openaire   +2 more sources

Defective Choosability of Graphs without Small Minors [PDF]

open access: yesThe 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
openaire   +3 more sources

Regeneration of the Gastrointestinal Tract After Using a Small Intestine Submucosa Patch—A Rat Model

open access: yesBiomedicines
Background: 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
doaj   +1 more source

A Light-Weight Network for Small Insulator and Defect Detection Using UAV Imaging Based on Improved YOLOv5

open access: yesSensors, 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
doaj   +1 more source

Blocks of small defect

open access: yesJournal 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 ...
openaire   +3 more sources

Highly-Sensitive and Frequency-Selective Imaging of Defects via Local Defect Resonance [PDF]

open access: yes, 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
core   +1 more source

Printed Circuit Board Defect Detection Using Deep Learning via A Skip-Connected Convolutional Autoencoder

open access: yesSensors, 2021
As technology evolves, more components are integrated into printed circuit boards (PCBs) and the PCB layout increases. Because small defects on signal trace can cause significant damage to the system, PCB surface inspection is one of the most important ...
Jungsuk Kim   +3 more
doaj   +1 more source

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