Choosing the Right Mix of At-speed Structural Test Patterns: Comparisons in Pattern Volume Reduction and Fault Detection Efficiency

2005 ◽  
Author(s):  
S. Goel ◽  
R.A. Parekhji
Keyword(s):  
Fault Detection ◽  
Detection Efficiency ◽  
Volume Reduction ◽  
Structural Test ◽  
The Right

Posttraumatic stress disorder symptom severity is associated with left hippocampal volume reduction: a meta-analytic study

CNS Spectrums ◽  
2016 ◽  
Vol 22 (4) ◽  
pp. 363-372 ◽  
Author(s):  
Michael D. Nelson ◽  
Alecia M. Tumpap
Keyword(s):  
Posttraumatic Stress Disorder ◽  
Posttraumatic Stress ◽  
Effect Size ◽  
Symptom Severity ◽  
Stress Disorder ◽  
Meta Analysis ◽  
Hippocampal Volume ◽  
Volume Reduction ◽  
Left Hippocampus ◽  
The Right

ObjectiveMany studies have reported hippocampal volume reductions associated with posttraumatic stress disorder (PTSD), while others have not. Here we provide an updated meta-analysis of such reductions associated with PTSD and evaluate the association between symptom severity and hippocampal volume.MethodsA total of 37 studies met the criteria for inclusion in the meta-analysis. Mean effect sizes (Hedges’ g) and 95% confidence intervals (CI95%) were computed for each study and then averaged to obtain an overall mean effect size across studies. Meta-regression was employed to examine the relationship between PTSD symptom severity and hippocampal volume.ResultsResults showed that PTSD is associated with significant bilateral reduction of the hippocampus (left hippocampus effect size=–0.400, p<0.001, 5.24% reduction; right hippocampus effect size=–0.462, p<0.001, 5.23% reduction). Symptom severity, as measured by the Clinician-Administered PTSD Scale (CAPS), was significantly associated with decreased left, but not right, hippocampal volume.ConclusionsPTSD was associated with significant bilateral volume reduction of the hippocampus. Increased symptom severity was significantly associated with reduced left hippocampal volume. This finding is consistent with the hypothesis that PTSD is more neurotoxic to the left hippocampus than to the right. However, whether the association between PTSD and lower hippocampal volume reflects a consequence of or a predisposition to PTSD remains unclear. More prospective studies are needed in this area.

scholarly journals Results of flaw detection of parts of the «shaft - pinion bushing» connection of agricultural machinery reducers

2021 ◽  
Vol 2094 (4) ◽  
pp. 042045
Author(s):  
N Zh Shkaruba ◽  
O A Leonov
Keyword(s):  
Fault Detection ◽  
Flaw Detection ◽  
Urgent Problem ◽  
Agricultural Machinery ◽  
Complete Control ◽  
Inner Diameter ◽  
The Right ◽  
Agricultural Machines

Abstract The article has devoted to solving an urgent problem related to the fault detection of the main parts of gearboxes. A study of the dimensions of new and worn parts, forming the connection «shaft - pinion bushing» Ø4ON7/k6 in the gearboxes of agricultural machines had carried out. It was found that the defect in size is 12.45 %, and the defect in shaft size is 8.69 %. It had found that the greatest wear of the holes when reaching 0.082 mm, about 19 % of the gears must be replaced due to the excess of the inner diameter, the shafts wear up to 0.12 mm and about 23 % of the shafts have rejected. It has shown that a transitional fit is assigned in the new joint, as evidenced by the presence of both clearances and interferences, and interferences predominate. The defect to the left of the span of a fit is 0.91 % and to the right is 0.47 %. This indicates that all new holes and shafts can be allowed for assembly, including those provided by defect, but as a result, there will be practically no defect in the joints. When joints have formed from worn parts, above 25 % of rejects at the maximum clearance, therefore, flaw detection and complete control in this case are necessary.

Soft Fault Detection Algorithms for Multi-Parallel Data Streams Under the Cloud Computing

2018 ◽  
Vol 22 (7) ◽  
pp. 1114-1119
Author(s):  
Hongbing Meng ◽  
Keyword(s):  
Fault Detection ◽  
Data Streams ◽  
Data Stream ◽  
Error Probability ◽  
Detection Efficiency ◽  
Detection Algorithm ◽  
Traditional Methods ◽  
Detection Algorithms ◽  
Parallel Data ◽  
Soft Fault

In the fault detection of multi-parallel data streams, the error probability of traditional methods is large, which cannot effectively meet the soft fault detection for multi-parallel data stream, causing the problem of low detection efficiency. A soft fault detection algorithm based on adaptive multi-parallel data stream is proposed. The soft fault feature in the data stream is extracted, and the adaptive soft fault detection algorithm is used to detect the fault of the multi-parallel data stream, which can overcome the disadvantages of traditional methods, effectively improve the efficiency, safety and the accuracy. Experimental results showed that the proposed method can effectively improve the efficiency of fault detection.

Path-Sensitive Oracle Data Selection via Static Analysis

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 110
Author(s):  
Mingzhe Zhang ◽  
Yunzhan Gong ◽  
Yawen Wang ◽  
Dahai Jin
Keyword(s):  
Fault Detection ◽  
Static Analysis ◽  
Detection Efficiency ◽  
Data Selection ◽  
Quality Analysis ◽  
Detection Capability ◽  
Test Oracles ◽  
Test Oracle ◽  
Efficiency And Effectiveness ◽  
Output Only

A test oracle is a procedure that is used during testing to determine whether software behaves correctly or not. One of most important tasks for a test oracle is to choose oracle data (the set of variables monitored during testing) to observe. However, most literature on test oracles has focused either on formal specification generation or on automated test oracle construction, whereas little work exists for supporting oracle data selection. In this paper, we present a path-sensitive approach, PSODS (path-sensitive oracle data selection), to automatically select oracle data for use by expected value oracles. PSODS ranks paths according to the possibility that potential faults may exist in them, and the ranked paths help testers determine which oracle data should be considered first. To select oracle data for each path, we introduce quantity and quality analysis of oracle data, which use static analysis to estimate oracle data for their substitution capability and fault-detection capability. Quantity analysis can reduce the number of oracle data. Quality analysis can rank oracle data based on their fault-detection capability. By using quantity and quality analysis, PSODS reduces the cost of oracle construction and improves fault-detection efficiency and effectiveness. We have implemented our approach and applied it to a real-world project. The experimental results show that PSODS is efficient in helping testers construct test oracles. Moreover, the oracle datasets produced by our approach are more effective and efficient than output-only oracles at detecting faults.

scholarly journals A Patient with GOLD Stage 3 COPD « cured » by One-Way Endobronchial Valves

Medicina ◽  
2019 ◽  
Vol 55 (3) ◽  
pp. 65
Author(s):  
Eric Marchand ◽  
Jean-Paul d’Odemont ◽  
Michael V Dupont
Keyword(s):  
Lung Volume ◽  
Lower Lobe ◽  
Volume Reduction ◽  
Chronic Obstructive ◽  
Therapeutic Approaches ◽  
Lung Volume Reduction ◽  
Obstructive Pulmonary Disease ◽  
Gold Stage ◽  
Appropriate Therapy ◽  
The Right

Lung hyperinflation is a main determinant of dyspnoea in patients with chronic obstructive pulmonary disease (COPD). Surgical or bronchoscopic lung volume reduction are the most efficient therapeutic approaches for reducing hyperinflation in selected patients with emphysema. We here report the case of a 69-year old woman with COPD (GOLD stage 3-D) referred for lung volume reduction. She complained of persistent disabling dyspnoea despite appropriate therapy. Chest imaging showed marked emphysema heterogeneity as well as severe hyperinflation of the right lower lobe. She was deemed to be a good candidate for bronchoscopic treatment with one-way endobronchial valves. In the absence of interlobar collateral ventilation, 2 endobronchial valves were placed in the right lower lobe under general anaesthesia. The improvement observed 1 and 3 months after the procedure was such that the patient no longer met the pulmonary function criteria for COPD. The benefit persisted after 3 years.

Spontaneous rupture of the right hemidiaphragm after video-assisted lung volume reduction operation

2002 ◽  
Vol 74 (3) ◽  
pp. 929-931 ◽  
Author(s):  
Serban C Stoica ◽  
Stewart R Craig ◽  
Sing Yang Soon ◽  
William S Walker
Keyword(s):  
Lung Volume ◽  
Spontaneous Rupture ◽  
Volume Reduction ◽  
Lung Volume Reduction ◽  
Reduction Operation ◽  
Video Assisted ◽  
The Right

scholarly journals Intrabullous blood injection for lung volume reduction

Thorax ◽  
2008 ◽  
Vol 63 (6) ◽  
pp. 564-565 ◽  
Author(s):  
S Kanoh ◽  
H Kobayashi ◽  
K Motoyoshi
Keyword(s):  
Lung Volume ◽  
Lung Diseases ◽  
Autologous Blood ◽  
Volume Reduction ◽  
Body Plethysmography ◽  
Lung Volume Reduction ◽  
Emphysematous Lung ◽  
Autologous Blood Injection ◽  
Blood Injection ◽  
The Right

Bronchoscopic treatment for emphysematous lung diseases has attracted clinical attention, and several different approaches are being investigated. We present a case of emphysematous bullae that was effectively treated with a newly developed bronchoscopic intervention, autologous blood injection. A 59-year-old man was referred to our institution with exertional dyspnoea. Chest CT showed emphysema and bullae with a diameter of 12 cm in the right upper lobe. Bronchoscopic treatment was introduced as an alternative to surgery. Autologous blood and fibrinogen solution were infused into bullae via the transbronchial catheter, under fluoroscopic guidance. Post-treatment CT showed marked contraction of bullae to a diameter of 3 cm, corresponding to a volume reduction of 800 ml on body plethysmography. A significant reduction in dyspnoea was also noted. This therapeutic approach is less invasive and may represent a good option for reducing lung volume.

Volume reduction of the right anterior limb of the internal capsule in patients with schizotypal disorder

2004 ◽  
Vol 130 (3) ◽  
pp. 213-225 ◽  
Author(s):  
Michio Suzuki ◽  
Shi-Yu Zhou ◽  
Hirofumi Hagino ◽  
Tsutomu Takahashi ◽  
Yasuhiro Kawasaki ◽  
...  
Keyword(s):  
Internal Capsule ◽  
Volume Reduction ◽  
The Right ◽  
Schizotypal Disorder

scholarly journals Research on Multi-level Cooperative Detection of Power Grid Dispatching Fault Based on Artificial Intelligence Technology

2021 ◽  
Author(s):  
Jianzhong Dou ◽  
Zhicheng Liu ◽  
Wei Xiong ◽  
Hongzhong Chen ◽  
Yifei Wu ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Fault Detection ◽  
Simulation Experiment ◽  
Detection Method ◽  
Detection Efficiency ◽  
Power Grid ◽  
False Detection ◽  
Cooperative Detection ◽  
Artificial Intelligence Technology ◽  
Multi Level

 The traditional power grid dispatching fault detection method has low detection efficiency and accuracy due to the lack of uncertainty in modeling. Aiming at the above problems, a multi-level cooperative fault detection method based on artificial intelligence technology is studied. After the preliminary processing of the dispatching data, the multilevel fault detection architecture is established. BP neural network is used to realize the multi-level cooperative detection of scheduling faults in the multi-level detection architecture. Through simulation experiment, it is proved that the failure rate and false detection rate of the proposed method are far lower than those of traditional methods, and the method has high stability and advantages.

Temporal and right frontal lobe alterations in panic disorder: a quantitative volumetric and voxel-based morphometric MRI study

2010 ◽  
Vol 40 (11) ◽  
pp. 1879-1886 ◽  
Author(s):  
T. Sobanski ◽  
G. Wagner ◽  
G. Peikert ◽  
U. Gruhn ◽  
K. Schluttig ◽  
...  
Keyword(s):  
Panic Disorder ◽  
Frontal Lobe ◽  
Temporal Lobe ◽  
Orbitofrontal Cortex ◽  
A Priori ◽  
Statistical Parametric Mapping ◽  
Volume Reduction ◽  
Middle Temporal Gyrus ◽  
Middle Temporal ◽  
The Right

BackgroundWith regard to current neurobiological theories, the aim of our study was to examine possible alterations of temporal and frontal lobe volume in panic disorder (PD).MethodSeventeen in-patients with PD and a group of healthy control subjects (HC) matched for age and gender were investigated by quantitative volumetric magnetic resonance imaging (MRI). Structures of interest were: the temporal lobe, the amygdala–hippocampus complex (AHC) and the frontal lobe. In addition, a voxel-based morphometry (VBM) analysis implemented in Statistical Parametric Mapping 5 (SPM5) was used for a more detailed assessment of possible volume alterations. Modulated grey matter (GM) images were used to test our a priori hypotheses and to present the volumetric results.ResultsQuantitative volumetric MRI revealed a bilateral reduction in temporal lobe volume in patients with PD compared to HC subjects. The AHC was normal. The right frontal lobe volume was also decreased. Using VBM we detected a significant GM volume reduction in the right middle temporal gyrus [Brodmann area (BA) 21] in patients with PD. In addition, there was a reduction in GM volume in the medial part of the orbitofrontal cortex (BA 11).ConclusionsOur results of reduced temporal and frontal lobe volume in PD are in agreement with prior studies. By using a recent VBM approach we were able to assess the abnormalities more precisely. The location of GM volume reduction in the right middle temporal gyrus and medial orbitofrontal cortex lends further support to recent aetiological models of PD.

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