-
1161
SIMULATION OF FLUID FLOW THROUGH A STAINLESS STEEL GLOBE VALVE USING ENGINEERING FLUID DYNAMICS
Published 2021-09-01“…These parameters are inlet pressure, orifice diameter, and outlet clearance. The results showed that the optimal parameters are appropriate to improve the valve design to ensure the maximum fluid flow rate.…”
Get full text
Article -
1162
Echocardiographic Assessment of Preload Responsiveness in Critically Ill Patients
Published 2012-01-01“…Static pressure (CVP, PAOP) and echocardiographic (IVC diameter, LVEDA) parameters fails to predict volume responsiveness. …”
Get full text
Article -
1163
Mountainous cultural crossroads: voyages for ochre quarrying
Published 2024-12-01“…For that reason, two roughly set areas of interest, within 50 and 150 kilometers in diameter were proposed. Those hypothetical circles would contribute to the understanding of general mobility patterns of the discussed communities. …”
Get full text
Article -
1164
Florida Foliage House Plant Care: Adenium obesum
Published 2013-05-01“…Flowers average 2–3 inches in diameter and may be single, double, or even triple. …”
Get full text
Article -
1165
Minimally Invasive Excision of a Giant Paratubal Cyst: Case Report and Management Review
Published 2019-01-01“…We present the case of a 36 cm diameter cyst in a 31-year-old female whose symptoms involved overactive bladder, abdominal bloating, and pressure. …”
Get full text
Article -
1166
DISCRETE VARIABLE OPTIMUM DESIGN FOR THE PRESSURE VESSEL BASED ON IMPROVED FIREFLY ALGORITHM
Published 2017-01-01“…It takes the minimum quality of the pressure vessel shell as its optimization object,the inner diameter and wall thickness as its discrete design variables. …”
Get full text
Article -
1167
Biliary Sphincter Balloon Dilation: Who, When and How?
Published 1999-01-01“…The success rate of stone removal is comparable with that of endoscopic sphincterotomy in patients with fewer than three stones that are less then 1 cm in diameter. Fewer complications after balloon dilation than after endoscopic sphincterotomy have been noted in most studies. …”
Get full text
Article -
1168
Solidification characteristics of atomized AlCu4Mg1-SiC composite powders
Published 2012-01-01“…The relationship between secondary dendrite arm spacing (SDAS) and particle diameter was examined, and these composite powders were found to have dendritic and equiaxed solidification with a fine eutectic phase. …”
Get full text
Article -
1169
Meshing Performance Analysis of the Cosine Roller Enveloping Hourglass Worm Drive
Published 2024-08-01“…According to the principle of the meshing theory, the mathematical model of the worm pair is established, the meshing performance formula of the worm pair is derived, the meshing performance of the cosine roller worm pair and the tapered roller worm pair is compared by the Matlab software, the influence of the radius of the small end of the roller and the throat diameter coefficient on the meshing performance of the worm pair is analyzed, and the subsequent optimization design of the worm pair is provided as reference. …”
Get full text
Article -
1170
Optimum Design of Load Capacity of Cycloidal Pin Wheel
Published 2022-08-01“…In order to optimize its load capacity, an optimization mathematical model with the minimum contact stress and the maximum meshing stiffness is constructed by taking the pin tooth distribution circle radius, short amplitude coefficient, pin diameter coefficient and cycloidal wheel width as design variables. …”
Get full text
Article -
1171
Investigate the Process Parameter on the Friction Stir Welding of Dissimilar Aluminium Alloys
Published 2022-01-01“…Taguchi L27, orthogonal array method, is preferred for optimizing FSW parameters such as shoulder diameter, tool rotational speed, and traverse speed. …”
Get full text
Article -
1172
Using the Scientific Method to Engage Mathematical Modeling: An Investigation of pi
Published 2016-01-01“…Two interdisciplinary activities, targeted for student in grade 6 or grade 7, are explained to show the application of the scientific method while building a mathematical model to investigate the relationship between the circumferences and the diameter of circular objects. In the first activity, a research question is pursued as it relates to the stated hypothesis. …”
Get full text
Article -
1173
Calculation of the Reliability of Helical Gear in Wind Turbine Gearbox Under Fatigue Pitting
Published 2018-01-01“…The stress spectrum is calculated and the reliability of helical gears with different pitting diameters and numbers are obtained under the effect of the wind field measured torque spectrum. …”
Get full text
Article -
1174
Micromelanomas: A Review of Melanomas ≤2 mm and a Case Report
Published 2014-01-01“…The ABCD acronym used to screen pigmented lesions for melanoma obviously was not designed to contend with melanomas that are under 2 mm in diameter. Previously, views ranged that such small lesions could not be melanomas until a few reports of such “micromelanomas” emerged. …”
Get full text
Article -
1175
NUMERICAL MODELING OF STRESSES NEAR THE SURFACE IN THE INGOT OF CIRCULAR SECTION, CRYSTALLIZABLE AT CIRCULAR TORCH SECONDARY COOLING
Published 2004-11-01“…The results of computer calculations of the stresses, generated in outside layer of ingot of steel 20 of circular section with diameter 300 mm, in application to one of the industrial technological schemas of RUP “BMZ”, are presented. …”
Get full text
Article -
1176
MESHING PERFORMANCE ANALYSIS OF TAPERED ROLLER ENVELOPING END FACE MESHING WORM DRIVE (MT)
Published 2023-01-01“…Matlab software is used to analyze the effects of small end radius, throat diameter coefficient and half cone angle of cone on the meshing performance evaluation parameters of the transmission pair induced normal curvature, lubrication angle, relative entrainment speed and self rotation angle. …”
Get full text
Article -
1177
Selection of the Composition with High Glass Forming Ability in Zr-Cu-Ni-Al Bulk Metallic Glasses
Published 2014-01-01“…By suppressing solidification of competing crystalline phases, a new glass forming alloy Zr51Cu24.22Ni14.06Al10.72 with the critical diameter of up to 10 mm is obtained.…”
Get full text
Article -
1178
Study on the connectivity model of VANET based on 802.11p/WAVE and its application
Published 2013-06-01“…Firstly,a vehicular mobility model was proposed for the freeway traffic scenarios.Then the connectivity pa-rameters of VANET,such as the connected probability between any two cars,the diameter size of connected cluster and the number of connected cluster,were analyzed.And on the basis of these,the conclusion that the location of VANET node at one time snapshot meets the gamma distribution was drawn.Furthermore,a VANET message package format considering flooding message number was designed,in which TTL field was discussed in detail by introducing the ana-lytic expression of connectivity model.Finally,simulations also verify the conclusion.The connectivity model proposed should provide an important theoretical basis for the upper-level protocols of VANET WAVE stack.…”
Get full text
Article -
1179
Conditional diagnosability of exchanged crossed cube under the MM model
Published 2017-09-01“…Exchanged crossed cube (ECQ) was the latest achievement in the study of novel interconnection network topology.ECQ retained the advantages of hypercube such as recursive structure,high partitionability and strong connectivity,with better properties than other variations of hypercube in terms of the smaller diameter,fewer links,and lower cost factor,which indicated more balanced consideration among performance and cost.As the study object,after topological analyzing,some important topological properties and connectivity theorems of ECQ were introduced,then the conditional diagnosability of ECQ(s,t)was determined under the MM model,which was 3s 2− for t≥s≥2.The research results will provide the key parameters for the reliability evaluation of ECQ in the future.So it has important theoretical significance and application value.…”
Get full text
Article -
1180
Design of Round-Nozzle Inertial Impactors Review with Updated Design Parameters
Published 2023-02-01“…Abstract Round-nozzle inertial impactors are widely used aerosol measuring instruments to characterize the mass and chemical composition of airborne aerosol particles as a function particle aerodynamic diameter. This article summarizes the most important design considerations with updated recommended design parameters taken from our review of published research articles and discusses some of the more common non-idealities seen in the operation and performance of inertial impactors. …”
Get full text
Article