Mesh Parametrization Driven by Unit Normal Flow

2019 ◽  
Vol 39 (1) ◽  
pp. 34-49
Author(s):  
Hui Zhao ◽  
Kehua Su ◽  
Chenchen Li ◽  
Boyu Zhang ◽  
Lei Yang ◽  
...  
Keyword(s):  
Normal Flow ◽  
Unit Normal

scholarly journals Normal Flow Signal of the Pterygoid Plexus on 3T MRA in Patients without DAVF of the Cavernous Sinus

2012 ◽  
Vol 34 (6) ◽  
pp. 1232-1236 ◽  
Author(s):  
K. Watanabe ◽  
S. Kakeda ◽  
R. Watanabe ◽  
N. Ohnari ◽  
Y. Korogi
Keyword(s):  
Cavernous Sinus ◽  
Normal Flow ◽  
Flow Signal ◽  
Pterygoid Plexus

Abstract 12660: Impact of Aortic Valve Replacement versus Medical Management on Survival of Low Flow Low Gradient Severe Aortic Stenosis With Normal Ejection Fraction

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Zaher Fanari ◽  
Dimitrios Barmpouletos ◽  
Vivek K Reddy ◽  
Sumaya Hammami ◽  
Zugui Zhang ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Stenosis ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Severe Aortic Stenosis ◽  
Low Flow ◽  
Rank Test ◽  
Normal Ejection Fraction ◽  
Normal Flow ◽  
Log Rank Test

Background: The impact of aortic valve replacement (AVR) versus medical management (MM) in patients with paradoxical low flow is unclear. The objective of this study was to compare outcomes of AVR versus MM in patients with severe aortic stenosis and normal ejection fraction and different transaortic flow and gradient. Methods: We identified consecutive patients presenting to our echo lab with an aortic valve area (AVA) < 1.0cm 2 and EF≥ 50%. We stratify patients depending on gradient (≥ 40 vs. < 40 mmHg) and stroke volume index (SVI < 35 vs. ≥35 ml/m 2 ). 4 groups were identified (, normal flow, high gradient [NF/HG]; normal flow, low gradient [NF/LG]; low flow, high gradient [LF/HG] and low flow, low gradient [LF/LG]. These 4 groups were also stratified depending on management (AVR vs. MM). All patients were retrospectively followed for the occurrence of death. Results: A total of 954 patients were included in analysis. Mean follow up was 2.45 ± 1.9 years. The mean age was 75.4 ± 5.6 years. Comparing all 4 AS subgroups, the mortality was higher in LF/HG followed by LF/LG, NF/HG and NF/LG (LF/HG 37.1% vs. LF/LG 33.9% vs. NF/HG 30.3%vs. NF/LG 20.2%; Log Rank Test, P=0.003). Patients who underwent medical therapy have a higher mortality than the overall cohort in all subgroups (LF/HG 44.3% vs. NF/HG 36.6% vs. LF/LG 33.7% vs. NF/LG 21.2%; Log Rank Test, P=0.001). Patients with HG had a higher chance of getting aortic valve replacement (AVR) than those with LF/LG and NF/LG (20.7% NF/HG vs. 10.6% LF/HG vs. 4.7% LF/LG and 3.6% NF/LG; P=0.01). Patients who underwent AVR had lower mortality rates when compared with the overall cohort in all subgroups (LF/HG 21.4% vs. 18.9% NF/HG vs. 6.6% LF/LG and 7.1% NF/LG; Log Rank Test, P= 0.253). Conclusion: Patients with LF/LG represent an under-recognized high-risk group with similar prognosis to NF/HG. Although these patients may benefit tremendously from AVR, they are less likely to undergo AVR when compared to HG patients.

scholarly journals Business processes exceptions in relation to operational performance

2019 ◽  
Vol 25 (5) ◽  
pp. 908-922 ◽  
Author(s):  
Remco Dijkman ◽  
Oktay Turetken ◽  
Geoffrey Robert van IJzendoorn ◽  
Meint de Vries
Keyword(s):  
Business Process ◽  
Process Model ◽  
Business Processes ◽  
Process Models ◽  
Operational Performance ◽  
Normal Flow ◽  
Throughput Time ◽  
Content Type ◽  
Business Process Models ◽  
Practical Implications

Purpose Business process models describe the way of working in an organization. Typically, business process models distinguish between the normal flow of work and exceptions to that normal flow. However, they often present an idealized view. This means that unexpected exceptions – exceptions that are not modeled in the business process model – can also occur in practice. This has an effect on the efficiency of the organization, because information systems are not developed to handle unexpected exceptions. The purpose of this paper is to study the relation between the occurrence of exceptions and operational performance. Design/methodology/approach The paper does this by analyzing the execution logs of business processes from five organizations, classifying execution paths as normal or exceptional. Subsequently, it analyzes the differences between normal and exceptional paths. Findings The results show that exceptions are related to worse operational performance in terms of a longer throughput time and that unexpected exceptions relate to a stronger increase in throughput time than expected exceptions. Practical implications These findings lead to practical implications on policies that can be followed with respect to exceptions. Most importantly, unexpected exceptions should be avoided by incorporating them into the process – and thus transforming them into expected exceptions – as much as possible. Also, as not all exceptions lead to longer throughput times, continuous improvement should be employed to continuously monitor the occurrence of exceptions and make decisions on their desirability in the process. Originality/value While work exists on analyzing the occurrence of exceptions in business processes, especially in the context of process conformance analysis, to the best of the authors’ knowledge this is the first work that analyzes the possible consequences of such exceptions.

Normal-Flow Low-Gradient Severe Aortic Stenosis: Myth or Reality?

2018 ◽  
Vol 2 (3) ◽  
pp. 180-187 ◽  
Author(s):  
Marie-Annick Clavel ◽  
Ezequiel Guzzetti ◽  
Mohamed-Salah Annabi ◽  
Erwan Salaun ◽  
Géraldine Ong ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Severe Aortic Stenosis ◽  
Normal Flow

scholarly journals WATER QUALITY AND NUTRIENT LOADS IN THE ABUKUMA WATERSHED UNDER NORMAL FLOW CONDITION

2007 ◽  
Vol 51 ◽  
pp. 1177-1182 ◽  
Author(s):  
Tsuyoshi KINOUCHI ◽  
Katumi MUSIAKE
Keyword(s):  
Water Quality ◽  
Flow Condition ◽  
Nutrient Loads ◽  
Normal Flow

Autonomous Measurement of Position Vectors and Unit Normal Vectors of Discrete Points on Unknown Object

1997 ◽  
pp. 521-527
Author(s):  
Yu Suzuki ◽  
Hideki Aoyama
Keyword(s):  
Normal Vectors ◽  
Unknown Object ◽  
Unit Normal

Normal Flow of Resources as a Basis for Improving the Quality of Final Financial Information

2018 ◽  
pp. 309-315
Author(s):  
Alexander A. Bazhenov ◽  
Igor E. Mizikovsky ◽  
Ekaterina P. Garina ◽  
Viktor P. Kuznetsov ◽  
Alexander I. Gavrilov
Keyword(s):  
Financial Information ◽  
Normal Flow

scholarly journals Design and Analysis of Posterior Semicircular Canal BPPV Diagnostic Test Based on Physical Simulation

2021 ◽  
Author(s):  
Xiaokai Yang ◽  
Qiancheng Yang ◽  
Zhaobang Liu
Keyword(s):  
Diagnostic Test ◽  
Semicircular Canal ◽  
Physical Simulation ◽  
Normal Vector ◽  
Forward Angle ◽  
Unit Normal Vector ◽  
Posterior Semicircular Canal ◽  
Average Value ◽  
Crista Ampullaris ◽  
Unit Normal

Abstract To discusses and analyzes how to realize the design of posterior semicircular canal BPPV diagnostic maneuver. First, measure the spatial attitude of the human semicircular canal, establish a BPPV virtual simulation platform, then analyze the key positions of the maneuver, and finally design a new diagnostic maneuver according to the demand, and perform physical simulation verification. The average value of the unit normal vector of the right posterior semicircular plane is [ 0.660, 0.702, 0.266], after rotate -46.8 ° around Z axis and 15.4 ° around Y axis, it parallel to the X axis. After that, when the tilt back angle reaches 70 °, the free otoconia in the left utricle will fall into the common crus; when bend forward 53.3°, the unit normal vector of the crista ampullaris plane of the posterior semicircular canal to the XY plane; when bend forward angle reaches 30°, the otoconia slides to the opening of the ampulla; when bend forward angle reaches 70°, the otoconia slides to the bottom of the crista ampullaris. The shallow pitching Yang maneuver is designed as turn head 45° to the one side, bend forward 45°, tilt back 90°, and bend forward 90°. The deep pitching Yang maneuver is designed as bend forward 90°, turn head 45° to one side, tilt back 135°, and bend forward 90°. A new posterior semicircular BPPV diagnostic test is designed to make the induced nystagmus have the characteristics of long latency, reversal, and repeatability, will not cause the inhibitory stimulation of the contralateral superior semicircular canal, and has good operation fault tolerance, which is of great value for clinical and scientific research.

scholarly journals Export of <sup>134</sup>Cs and <sup>137</sup>Cs in the Fukushima river systems at heavy rains by Typhoon Roke in September 2011

2013 ◽  
Vol 10 (2) ◽  
pp. 2767-2790 ◽  
Author(s):  
S. Nagao ◽  
M. Kanamori ◽  
S. Ochiai ◽  
S. Tomihara ◽  
K. Fukushi ◽  
...  
Keyword(s):  
Nuclear Power ◽  
Heavy Rain ◽  
Rain Event ◽  
Normal Flow ◽  
Flow Conditions ◽  
Pulse Input ◽  
Heavy Rain Event ◽  
Coastal Marine ◽  
Rain Events ◽  
Heavy Rains

Abstract. Effects of a heavy rain event on radiocesium export were studied at stations on the Natsui River and the Same River in Fukushima Prefecture, Japan after Typhoon Roke during 21–22 September 2011, six months after the Fukushima Daiichi Nuclear Power Plant accident. Radioactivity of 134Cs and 137Cs in river waters was 0.011–0.098 Bq L−1 at normal flow conditions during July–September in 2011, but it increased to 0.85 Bq L−1 in high flow conditions by heavy rains occurring with the typhoon. The particulate fractions of 134Cs and 137Cs were 21–56% in the normal flow condition, but were close to 100% after the typhoon. These results indicate that the pulse input of radiocesium associated with suspended particles from land to coastal ocean occurred by the heavy rain event. Export flux of 134Cs and 137Cs by the heavy rain accounts for 30–50% of annual radiocesium flux in 2011. Results show that rain events are one factor controlling the transport and dispersion of radiocesium in river watersheds and coastal marine environments.

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