Results 111 to 120 of about 5,412 (286)

Entropic Limit Analysis Applied to Radial Cavity Expansion Problems

Frontiers in Materials, 2018
Analytical solutions of limit analysis design for the simple problem of plane strain expansion of a cylindrical cavity are derived and generalized into entropic extremum principles that allow a fundamental assessment of coupled thermal/hydro/mechanical ...
ManMan Hu, Klaus Regenauer-Lieb
doaj   +1 more source

Seismic active earth pressure of cohesive backfill on retaining walls near rock face under RB mode: A pseudo-static approach

KSCE Journal of Civil Engineering
This study presents a pseudo-static analytical solution for evaluating seismic active earth pressure acting on retaining walls with narrow cohesive backfill adjacent to a rock face under rotation about the base (RB) mode.
Jing-shan Zhu, Yi-xing Kuang, Chang Chen, Yanping Lv   +3 more
doaj   +1 more source

Radiation of Logarithmic Spiral Antennas in the Presence of Dense Dielectric Lenses

, 2016
In this paper, the performance of logarithmic spiral antennas as feeds of dense dielectric lens are investigated in detail. The performances are evaluated in terms of clean symmetric radiation patterns, high polarization purity, antenna efficiency, and ...
Garufo, A. (author), Neto, A., Llombart, Nuria (author), Neto, A. (author), Llombart, Nuria, Garufo, A.   +5 more
core   +1 more source

PERANCANGAN DAN REALISASI ANTENA LOGARITHMIC SPIRAL PADA FREKUENSI KERJA 400 MHz – 4 GHz UNTUK HIGH FREQUENCY DETECTOR (HFD) [PDF]

, 2013
ABSTRAKSI: Antena logarithmic spiral adalah salah satu pengembangan dari antena conical spiral yang berbentuk planar sehingga memiliki pola radiasi bidirectional.
FATAKHILLAH
core  

Reconstruction Experience Using Logarithmic Spiral Flap on the Nasal Sidewall. [PDF]

Ann Dermatol, 2020
Bang CH, Lee HJ, Han JH, Lee JH, Lee JY, Yu DS, Park YM.   +6 more
europepmc   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

Journal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli, Jacob L. Pretko, Christopher W. Seay, Steven R. Lustig   +3 more
wiley   +1 more source

Long‐Range Interactions in Topological Superconducting Systems: A Mini Review

Advanced Physics Research, EarlyView.
Long‐range interacting quantum systems are surveyed in this review, with an emphasis on the long‐range topological superconductor and its variants. Long‐range interactions decaying in a power‐law manner can lead to exotic phenomena that finds no analogue in short‐range regimes.
Juntong Ren, Haifeng Lü
wiley   +1 more source

Modeling regional innovation in Egyptian governorates: Regional knowledge production function approach

Regional Science Policy &Practice, EarlyView., 2021
Abstract Knowledge and innovation have become a significant source of modern regional development. The paper aims to study the spatial association of innovation and model innovation, besides critiquing regional innovation policy, using the regional knowledge production function approach.
Mohamed Abouelhassan Ali
wiley   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

The Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox, Kenneth D. Rose, Rachel H. Dunn, Kishor Kumar, Rajendra S. Rana, Ashok Sahni, Lachham Singh, Thierry Smith, Jordan W. Crowell   +8 more
wiley   +1 more source

Local economic resilience and economic specialization in Greece during the crisis

Regional Science Policy &Practice, EarlyView., 2023
Abstract This paper scrutinizes the issue of economic resilience, aiming to detect the existence of a systematic link with economic specialization. To this end, the paper conducts an empirical analysis at the local (i.e., municipal) level of Greece during the economic crisis period (2009–2015), providing cartographic visualizations and spatial ...
Panagiotis Artelaris, Dimitris Kallioras, Anastasis Katsinis   +2 more
wiley   +1 more source