Results 101 to 110 of about 1,762,518 (330)

Prediction of performance of centrifugal pumps during starts under pressure [PDF]

, 1969
Method which calculates start-up characteristics of centrifugal pumps reveals a capacity to predict pressure drop characteristics of pumps with vaned diffusers. Calculations are based on pump geometry, design-point flow, speed, and pressure rise, and the
Rostafinski, W.
core   +1 more source

Accuracy and reproducibility of a single‐pose image‐to‐robot registration method for mobile C‐arm cone beam CT guided histotripsy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Histotripsy is a focal tumor therapy that utilizes focused ultrasound (US) to mechanically destroy tissue. To overcome visualization limitations of diagnostic US‐guidance, C‐arm cone beam CT (CBCT)‐guided histotripsy is being developed, for which a mobile C‐arm could increase accessibility. CBCT‐guided histotripsy uses a phantom with a
Grace M. Minesinger, Paul F. Laeseke, Katrina L. Falk, Claire E. Hennen, Michael A. Speidel, Martin G. Wagner   +5 more
wiley   +1 more source

Quadratic multiple regression model and spectral relaxation approach for carreau nanofluid inclined magnetized dipole along stagnation point geometry. [PDF]

Sci Rep, 2022
El Din SM, Darvesh A, Ayub A, Sajid T, Jamshed W, Eid MR, Hussain SM, Sánchez-Chero M, Ancca SM, Ramírez Cerna JM, Dapozzo CLA.   +10 more
europepmc   +1 more source

Comprehensive end‐to‐end dosimetry audit for stereotactic body radiotherapy in spine, lung, and soft tissue

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To create and conduct a comprehensive onsite end‐to‐end dosimetry audit to assess treatment accuracy of spine, lung, and soft tissue Stereotactic Body Radiotherapy (SBRT) across Australian and New Zealand (ANZ) radiotherapy centers. Methods The Australian Clinical Dosimetry Service (ACDS) anthropomorphic thorax phantom underwent a CT ...
Maddison Shaw, Andrew Alves, Jessica Lye, Joerg Lehmann, Fayz Kadeer, Sabeena Beveridge, Nicholas Hardcastle, Moshi Geso, Rhonda Brown   +8 more
wiley   +1 more source

Simulation‐free workflow for lattice radiation therapy using deep learning predicted synthetic computed tomography: A feasibility study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Lattice radiation therapy (LRT) is a form of spatially fractionated radiation therapy that allows increased total dose delivery aiming for improved treatment response without an increase in toxicities, commonly utilized for palliation of bulky tumors.
Libing Zhu, Nathan Y. Yu, Safia K. Ahmed, Jonathan B. Ashman, Diego Santos Toesca, Michael P. Grams, Christopher L. Deufel, Jingwei Duan, Quan Chen, Yi Rong   +9 more
wiley   +1 more source

Curvature estimation for point cloud 2-manifolds based on the heat kernel

AIMS Mathematics
The geometry processing of a point cloud 2-manifold (or point cloud surface) heavily depends on the discretization of differential geometry properties such as Gaussian curvature, mean curvature, principal curvature, and principal directions.
Kai Wang, Xiheng Wang, Xiaoping Wang
doaj   +1 more source

THE ROLE OF PROJECTIVE GEOMETRY IN TALIAN EDUCATION AND INSTITUTIONS AT THE END OF THE 19TH CENTURY

Revista de História da Educação Matemática, 2023
At the end of the 19th century, projective geometry was at the basis of most geometric research in Italy, and of much other research work in Europe. Furthermore, through its close connection with descriptive geometry, it seemed particularly responsive to
Marta Menghini
doaj  

The sphere and the cut locus at a tangency point in two-dimensional almost-Riemannian geometry

, 2010
We study the tangential case in 2-dimensional almost-Riemannian geometry. We analyse the connection with the Martinet case in sub-Riemannian geometry. We compute estimations of the exponential map which allow us to describe the conjugate locus and the ...
Bonnard, Bernard, Charlot, Grégoire, Ghezzi, Roberta, Janin, Gabriel   +3 more
core   +1 more source

Colchicine Concentrations and Relationship With Colchicine Efficacy and Adverse Events: Post Hoc Analysis of a Randomized Clinical Trial of Colchicine for Gout Flare Prophylaxis

Arthritis Care &Research, EarlyView.
Objective Our objective was to examine the relationship between colchicine plasma concentrations and clinical and demographic factors and to determine the relationship between colchicine concentrations and colchicine efficacy and colchicine‐specific adverse events.
Lisa K. Stamp, Anne Horne, Borislav Mihov, Jill Drake, Janine Haslett, Peter Chapman, Daniel F. B. Wright, Christopher Frampton, Nicola Dalbeth   +8 more
wiley   +1 more source

A Stochastic Geometry Analysis of Hybrid Cellular-Adhoc CDMA Networks

International Journal of Information and Communication Technology Research, 2011
This paper studies the impact of using multihop wireless adhoc network in conjunction with cellular networks under a probabilistic routing strategy. Our objective is to obtain the outage probability of the twodimensional hybrid CDMA network under path ...
Neda Banivaheb, Keivan Navaie
doaj