Simulation Analysis of Air Flow and Turbulence Statistics in a Rib Grit Roughened Duct by I. I. Vogiatzis, A. C. Denizopoulou, G. K. Ntinas, V. P. Fragos

“…The implementation of variable artificial roughness patterns on a surface is an effective technique to enhance the rate of heat transfer to fluid flow in the ducts of solar air heaters. Different geometries of roughness elements investigated have demonstrated the pivotal role that vortices and associated turbulence have on the heat transfer characteristics of solar air heater ducts by increasing the convective heat transfer coefficient. …”
Get full text

Ragam Hias Majapahit sebagai Alternatif Desain Motif by Arifatul Khoir, Ningroom Adiani

“…Lambang kerajaan Majapahit dan beberapa ragam hias lain berbentuk geometris dan organik sebagai perwujudan dari buah Maja (asal nama kerajaan Majapahit), banyak ditemui di ragam hias peninggalan kerajaan Majapahit. …”

The Three-Dimensional Velocity Distribution of Wide Gap Taylor-Couette Flow Modelled by CFD by David Shina Adebayo, Aldo Rona

“…This wide gap configuration has received comparatively less attention than narrow gap journal bearing type geometries. The flow in the gap between an inner rotating cylinder and an outer stationary cylinder has been modelled as an incompressible flow using an implicit finite volume RANS scheme with the realisable k-ε model. …”
Get full text

Anatomi dan Fisiologi Kompleks Mitral by David Ramli, Yerizal Karani

“…Integritas kompleks mitral penting untuk menjaga ukuran normal, geometri dan fungsi ventrikel kiri. Fungsi ini terjadi melalui interaksi antara kompleks mitral dengan ventrikel. …”
Get full text

Design Studies of Ultra-Wideband Microstrip Antennas with a Small Capacitive Feed by Veeresh G. Kasabegoudar, Dibyant S. Upadhyay, K. J. Vinoy

“…Results presented here show that such wide bandwidths are also possible for triangular and semiellipse geometries with a similar feed arrangement. The proposed feed is a very small strip placed very close to the radiator on a substrate above the ground plane. …”
Get full text

Numerical Analysis of Flow Field in Generator End-Winding Region by Wei Tong

“…Cooling in an end-winding region of a high-powered, large-sized generator still remains a challenge today because of a number of factors: a larger number of parts/components with irregular geometries, complexity in cooling flow paths, flow splitting and mixing, and interactions between rotor-induced rotating flows and nonrotating flows from stationary sections. …”
Get full text

Regular black holes from Kiselev anisotropic fluid by L. C. N. Santos

“…Due to its versatility, we suggest the possibility of using this approach as a tool to construct new physical solutions associated with regular black holes or other geometries of interest.…”
Get full text

Optical signatures of lattice strain in chemically doped colloidal quantum wells by Junhong Yu, Hilmi Volkan Demir, Manoj Sharma

“…Abstract Lattice strain plays a vital role in tailoring the optoelectronic performance of colloidal nanocrystals (NCs) with exotic geometries. Although optical identifications of lattice strain in irregular-shaped NCs or hetero-structured NCs have been well documented, less is known about optical signatures of the sparsely distributed lattice mismatch in chemically-doped NCs. …”
Get full text

IVR-UNED: Interactive virtual environments to understand radiation fields by Mario Belotti, Rafael Juárez

“…Radiation maps can reach great levels of complexity, including multiple radiation sources in vast geometries. These capabilities must be accompanied by an equal capacity to process the results obtained. …”
Get full text

Theoretical Study of Terminal Vanadium(V) Chalcogenido Complexes Bearing Chlorido and Methoxido Ligands by Samuel Tetteh, Ruphino Zugle

“…The optimized complexes show distorted octahedral geometries around the central vanadium atom. The ligand pπ-vanadium dπ interactions were analyzed by natural bond order (NBO) and natural population analyses (NPA). …”
Get full text

Modeling of Solitary Wave Interaction with Curved Face Seawalls Using Numerical Method by Seyyed-Mahmood Ghassemizadeh, Mohammad Javad Ketabdari

“…This paper considers the solitary wave interaction with seawalls of different curved geometries and sloped faces using numerical modeling. …”
Get full text

The Numerical Simulation of Hard Rocks for Tunnelling Purposes at Great Depths: A Comparison between the Hybrid FDEM Method and Continuous Techniques by Nicholas Vlachopoulos, Ioannis Vazaios

“…Following the comparison of these models, additional analyses are performed by integrating discrete fracture network (DFN) geometries in order to examine the effect of the explicit simulation of joints in brittle rockmasses. …”
Get full text

Effect of Partial Shrouds on the Performance and Flow Field of a Low-Aspect-Ratio Axial-Flow Fan Rotor by N. Sitaram, G. Ch. V. Sivakumar

“…The flow field at the rotor exit of a low aspect ratio axial flow fan for different tip geometries and for different flow coefficients is measured in the present study. …”
Get full text

Numerical Calculation of Three-Dimensional Ground State Potential Energy Function of Na2F System by Yue Wang, Yu Liu, BiLv Fang, Gan Gao, Chengwen Zhang, Dezhi Dong

“…Two Jacobi coordinates, R and θ, and the frozen molecular equilibrium geometries were used. We mixed the basis sets of aug-cc-pCVQZ for the sodium atom and the basis sets of aug-cc-pCVDZ for the fluorine atom with an additional (3s3p2d) set of midbond functions; the energies obtained were extrapolated to the complete basis set limit. …”
Get full text

Cluster-driven non-uniform characteristic analysis of underwater target acoustic scattering field by Tianyang Xu, Hongjian Jia, Jixing Qin

“…Underwater small targets typically exhibit non-centrosymmetric geometries, resulting in a highly spatially inhomogeneous acoustic scattering field under active sonar detection. …”
Get full text

Highly printable, strong, and ductile ordered intermetallic alloy by Yinghao Zhou, Weicheng Xiao, Dawei Wang, Xu Tang, Zheling Shen, Weipeng Li, Jun Zhang, Shijun Zhao, Junhua Luan, Zibing An, Rongpei Shi, Ming Yan, Xiaodong. Han, C. T. Liu, Yilu Zhao, Tao Yang

“…It is difficult to fabricate such materials into components with complex geometries through traditional subtractive manufacturing methods. …”
Get full text

A Novel Neural Network-Based Approach Comparable to High-Precision Finite Difference Methods by Fanghua Pei, Fujun Cao, Yongbin Ge

“…Thanks to the mesh-less feature of the neural network, it is particularly effective for complex geometries. The numerical results demonstrate that our method significantly enhances the accuracy of deep learning in solving PDEs, achieving error levels comparable to high-accuracy finite difference methods.…”
Get full text

Transmit Waveform Optimization for Spatial-Frequency Diversity MIMO Radar in the Presence of Clutter by Yonghao Tang, Xiaofeng Ma, Weixing Sheng, Yubing Han

“…Due to the fact that the RCS (radar cross section) of complex target may vary with the different transmitted carrier frequencies and array geometries, many recent researches study at the background of diversity MIMO radar equipped with widely separated array antennas or working at multiple carrier frequencies, respectively. …”
Get full text

Optimizing the graft size in the Evans osteotomy to minimize the calcaneocuboid joint pressure by highly realistic in-silico analysis by Luca Quagliato, Youngbin Lim, Yunjeong Choi, Kyoung Min Lee, Sewon Kim, Taeyong Lee

“…The developed FEA was then employed to investigate the effect of the graft size on the calcaneocuboid joint pressure and improvement in the medial-longitudinal arch for a flat foot patient, where the soft and hard tissues’ geometries were acquired by a CT scan. The results quantitatively demonstrated that the maximum pressure at the calcaneocuboid joint follows a quadratic trend where the minimum point also represents the best compromise to alleviate the flat foot condition while avoiding excessive pressure.…”
Get full text

Electrical and Thermal Conductivity of Complex-Shaped Contact Spots by Beguin, Paul, Yastrebov, Vladislav A.

“…Employing an in-house Fast Boundary Element Method implementation, various complex geometries were studied. Our investigation begins with annulus contact spots to assess the impact of connectedness. …”
Get full text