scholarly journals Estimation of Factors that Affect the Metrological Characteristics of Target Flow Meters

2020 ◽  
pp. 27-34
Author(s):  
I. V. Korobko ◽  
A. V. Pysarets ◽  
A. M. Rak
Keyword(s):  
Vertical Axis ◽  
Positive Cone ◽  
Metrological Characteristics ◽  
Measuring Instruments ◽  
Flow Meters ◽  
Minimal Impact ◽  
Before And After ◽  
Effective System ◽  
Spatial Configurations ◽  
Abrupt Contraction

The article is devoted to the effective system crea­tion for recording liquids and gases flows. There is extremely relevant for creating metering units of fuel and energy resources. The aim of the work is to determine the influence of the flowed body geometric configuration of the sensitive element and its orientation relative to the direction of the flow on the hydrodynamic flow meter metrological characteristics, as well as determining the instruments’ rational location in the technological line Based on the example of the hydrodynamic class measuring transducers factors that have a significant impact on their metrological characteristics are determined, the degree of the transducers sensitivity to the measured medium flows asymmetry is revealed. The flows asymmetry is simulated by hydraulic resistan­ces of different spatial configurations (spatial elbow, elbow, double elbow, contraction, abrupt contraction). Simulation modeling of the operation of such devices is performed. Sensitive elements of different Gaussian curvatures such as zero (cylinder), positive (cone) and negative (hollow hemisphere) were studied. The value of the registration result uncertainty depends on the flow asymmetry and the instrument spatial orientation relative to the vertical axis in the technological network. The obtained results make it possible to clearly determine the instrument installation place in the technological network under conditions of maximum accuracy and minimal impact on the measured medium. This allows effectively using transducers in places of the technological network, taking into account the specific conditions for the metering units creation. There is no ne­cessary to make straight pipeline sections before and after the instruments. The researches results show that measuring instruments with flow bodies in the shape of a cone oriented the apex toward the flow are the best.

scholarly journals Pengaruh Terapi Murrotal Terhadap Penurunan Tingkat Nyeri dan Kecemasan Saat Perawatan Luka Pasien Ulkus Dm Di Rsud K.R.M.T. Wongsonegoro Semarang

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Dyah Restuning Prihati ◽  
Maulidta Karunianingtyas Wirawati
Keyword(s):  
Wound Care ◽  
Stress Hormones ◽  
Sample Selection ◽  
Intervention Group ◽  
Wilcoxon Test ◽  
Control Group ◽  
Measuring Instruments ◽  
Diabetic Ulcer ◽  
Before And After ◽  
Quasi Experimental

Diabetic ulcer is caused by damage to the skin nerves due to reduced blood flow. Pain and anxiety when wound care begins when dressing and cleaning the wound. Murottal therapy is a distraction technique in the form of al-quran records, decreases stress hormones and provides a feeling of relaxation. The purpose of this study was to reduce the level of pain and anxiety during wound care in patients with DM ulcers after being given murrotal therapy in RSUD K.M.T. Wongsonegoro Semarang. The research method with quasi experimental pre-posttest control group. a sample of 17 people in the intervention group and 15 in the control group. Sample selection with total sampling. The murrottal listening intervention group played for 3 times for 15 minutes. Respondents were conducted pre and posttest with NRS pain measuring instruments and DASS anxiety. The results of the Wilcoxon test in the intervention group obtained p = 0,000, there were differences in the level of pain between before and after murotal therapy and p = 0.002 there was a difference in the level of anxiety between before and after murotal therapy. In the control group obtained p = 0.02, there were differences in the level of pain between before and after murotal therapy and the value of p = 1.00, there was no difference in the level of anxiety between before and after given murotal therapy. Conclusion: Murrotal therapy can reduce the level of pain and anxiety during wound care for DM ulcer patients.

Determination of changes of metrological characteristics of measuring instruments with time

1978 ◽  
Vol 21 (2) ◽  
pp. 158-163
Author(s):  
I. V. Abuladze ◽  
A. I. Belyaevskii ◽  
A. A. Dzhevdet
Keyword(s):  
Metrological Characteristics ◽  
Measuring Instruments

Determination of precision conditions for measuring relative values in mechanical tests of various materials

2021 ◽  
pp. 9-17
Author(s):  
Svetlana Yu. Lohanina ◽  
Olga V. Baranova ◽  
Larisa V. Trubacheva
Keyword(s):  
Wear Resistance ◽  
Mechanical Testing ◽  
Mechanical Tests ◽  
Metrological Characteristics ◽  
Measuring Instruments ◽  
Quantitative Chemical Analysis ◽  
Uniformity Of Measurements ◽  
Multi Stage ◽  
Abrasive Disk ◽  
Accuracy Of Measurements

The problem of insufficient detail of the requirements for the developed and certified measurement methods used in mechanical testing of various materials is considered. The compatibility of the requirements of metrological support for the results of quantitative chemical analysis and indirect results of mechanical tests for the wear resistance of materials when rubbing against a fixed abrasive is relevant. To ensure the accuracy of measurements, it is proposed to use the grain size of the abrasive material and the rotation speed of the abrasive disk as variable factors. In order to establish the requirements for the metrological characteristics of materials during mechanical tests, in particular, when determining the relative wear resistance, the conditions for precision measurements are justified. The results of a multi-stage experiment-testing of materials for wear resistance with the use of various research and consumables, measuring instruments and testing equipment are presented. The conditions for the organization of the experiment in the case of determining other relative mechanical characteristics of the materials under study for establishing precision indicators in the development of methods of mechanical tests for abrasive wear are proposed and justified. The application of the obtained results will allow developers of mechanical testing methods to establish metrological characteristics of materials in compliance with all the requirements of the State System for Ensuring the Uniformity of Measurements of the Russian Federation.

Abstract P183: Minimal Impact of JAMA 2014 Guidelines on Blood Pressure Control in a Large Health System

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Alex R Chang ◽  
J E Hartle ◽  
Lawrence Appel ◽  
Morgan Grams
Keyword(s):  
Blood Pressure ◽  
Health System ◽  
Blood Pressure Control ◽  
Pressure Control ◽  
Mixed Effects Models ◽  
System Level ◽  
Minimal Impact ◽  
Before And After ◽  
Patients With Diabetes ◽  
Using Data

Background: JAMA 2014 blood pressure (BP) guidelines raised BP goals for adults older than 60 years (from <140/90 to <150/90) and adults with chronic kidney disease (CKD) or diabetes (from < 130/80 to <140/90). It is unknown whether there were changes in BP control at the health system level after guideline publication. Methods: Using data from 288,962 adults receiving primary care in the Geisinger Health System, we compared blood pressure control over 1-year time periods before and after the February 2014 publication of the JAMA 2014 BP guidelines (i.e. Aug 2012-July 2013 vs Aug 2014-July 2015). Mixed effects models were used, allowing intercepts to vary by individual, adjusted for age, gender, and race. Results: Mean age was 49.2 ± 18.3 y, 56.7% were female, and 2.5% were black. Prevalence of diagnoses for hypertension, diabetes, and CKD were 40.0%, 15.1%, and 11.4%, respectively. Overall, distributions of systolic BP were similar before and after JAMA 2014 BP guidelines (Figure). BP control <140/90 was also similar between the two periods for adults 18-59 y (90.9% vs. 90.3%; OR 1.01, 95% CI: 0.99-1.02; p=0.3), adults ≥ 60 y (81.8% vs 82.2%; OR 1.01, 95% CI: 1.00-1.03; p=0.05), and adults with diabetes (83.2% vs. 82.7%; OR 1.00, 95% CI: 0.99-1.02; p=0.7) whereas BP control <140/90 improved slightly for adults with CKD (81.7% vs. 82.1%; OR 1.06, 95% CI: 1.04-1.08; p<0.001). BP control <130/80 was marginally worse after JAMA 2014 BP guidelines in patients with diabetes (53.5% vs. 51.8%; OR 0.98, 95% CI: 0.96-0.99; p=0.01). Trends were similar in analyses only including patients with hypertension diagnoses (overall 78.6% vs. 78.2%, OR 1.00, 95% CI: 0.99-1.02; p=0.5), and when using a goal of < 130/80 for patients with CKD (53.3% vs. 53.5%; OR 1.06, 95% CI: 1.04-1.08; p<0.001). Conclusion: There was little change in blood pressure control in a large integrated health system after publication of the JAMA 2014 BP guidelines. These findings are reassuring given recent findings from the SPRINT trial supporting lower BP goals.

Evaluation of an overlapping pubic and ischiatic osteotomy for the improvement of acetabular ventroversion in dogs: an ex vivo study

2016 ◽  
Vol 29 (06) ◽  
pp. 499-506
Author(s):  
James Roush ◽  
David Biller ◽  
Julie Gervais
Keyword(s):  
Ex Vivo ◽  
Single Session ◽  
Surgical Equipment ◽  
Minimal Impact ◽  
Computed Tomography Images ◽  
Pelvic Inlet ◽  
Before And After ◽  
Patients At Risk ◽  
Canine Hip Dysplasia ◽  
Ex Vivo Study

SummaryObjectives: To assess the potential of a new single-session surgical procedure, the overlapping pubic and ischiatic osteotomy (OPIO) for modification of bilateral hip conformation. We hypothesized that OPIO would be simple to perform with currently available surgical equipment, through a single surgical approach, with minimal potential morbidity, and that it would allow adequate simultaneous bilateral improvement of coxofemoral joint conformation in patients at risk of canine hip dysplasia.Methods: The OPIO procedure was performed in the pelves of five large breed canine cadavers. Computed tomography images of each cadaver were compared by measurement of the dorsal acetabular rim angle (DARA), acetabular angle (AA), dorso-ventral sacroiliac ratio (SR), and pubic inlet area before and after OPIO.Results: Coxofemoral joint conformation was improved after OPIO. Postoperative DARA was significantly decreased (mean: –5.09°) and AA was significantly increased (mean: 3.54°) after OPIO. The SR was not significantly different after OPIO, indicating minimal impact on the sacro-illiac joints by the procedure. Pubic inlet dimensions and area were significantly decreased after OPIO, but the overall effect on pelvic inlet area was clinically insignificant.Clinical significance: An OPIO allows some improvement of coxofemoral joint conformation in canine cadavers.

Investigating metrological characteristics of compensated thermoelectric heat-flow meters

1978 ◽  
Vol 21 (2) ◽  
pp. 252-254
Author(s):  
I. R. Zhilyaev ◽  
L. G. Zarubina ◽  
A. I. Omelik ◽  
Yu. K. Frolov
Keyword(s):  
Heat Flow ◽  
Metrological Characteristics ◽  
Flow Meters ◽  
Thermoelectric Heat

Radionuclide Evaluation of Pulmonary Perfusion in Patients with Severe Thoracic Scoliosis Before and After Surgery

2013 ◽  
Vol 20 (3) ◽  
pp. 3-10
Author(s):  
AV. V Karalkin ◽  
I. N Lisyanskiy ◽  
A. A Kuleshov ◽  
M. S Vetrile
Keyword(s):  
Deformity Correction ◽  
Vertical Axis ◽  
Concave Side ◽  
External Respiration ◽  
Thoracic Scoliosis ◽  
Severe Scoliosis ◽  
Combined Application ◽  
Pulmonary Scintigraphy ◽  
Before And After ◽  
Pulmonary Microcirculation

The purpose of the study was to evaluate the influence of severe scoliosis surgical correction upon pulmonary microcirculation. The study included 8 patients aged 12— 27 years with severe thoracic scoliosis. Angle deformity by Cobb ranged from 80 to 140° (mean 120.4°). Deformity correction and fixation was performed on the concave side of thorax using multilevel CotrelDubousset instrumentation (CDI) and elevating thoracoplasty (ET). Perfusion radionuclide pulmonary scintigraphy was performed prior to, 3 months and 1 year after surgery. Analysis of pulmonary scintigrams included both the qualitative (visual) and quantitative assessments. Besides, examination of external respiration function (spirometry and spirography) was performed. Mean postoperative Cobb angle made up 67.4°. No loss of correction was noted. Prior to surgical intervention pulmonary scintigrams showed deformation of lung fields, displacement along the vertical axis towards opposite to curvature side, decreased perfusion in the zone of intercostal retraction on the concave side of thorax. Postoperatively restoration of vertical axis, increase of lungs size and improvement of perfusion were observed. Mean vital lung capacity increased from 1510 (540-2280) to 2090 (640-3010) ml. Thus, combined application of CDI and ET enabled to perform adequate correction of severe thoracic scoliosis as well as to improve pulmonary microcirculation and radionuclide perfusion scintigraphy was a highly informative method for the evaluation of lung condition.

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