Results 71 to 80 of about 738,511 (305)
Influence of the arch thickness discontinuities on the seismic capacity of masonry bridges [PDF]
, 2017 Arch bridges still represent a large component of rail and road infrastructure on the European continent. Their operation and safety maintenance is one of the main aims of the rail and road infrastructure managers.
Pellegrino, Carlo, Simoncello, Nicolo'
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The Matrix Ansatz, Orthogonal Polynomials, and Permutations [PDF]
, 2010 In this paper we outline a Matrix Ansatz approach to some problems of combinatorial enumeration. The idea is that many interesting quantities can be expressed in terms of products of matrices, where the matrices obey certain relations. We illustrate this
Corteel, Sylvie +2 more
core +4 more sources
Advanced Functional Materials, EarlyView.This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker +5 more
wiley +1 more source
Dental Arch Dimensions of Nigerian Children with Hypertrophied Adenoids
Turkish Journal of Orthodontics, 2017 Objective:The study objective was to assess the effect of adenoid hypertrophy on the dental arch dimensions of children in Ile-Ife, Nigeria.Methods:Ninety patients aged 3-12 years attending the Otorhinolaryngology Clinic at Obafemi Awolowo University ...
Vivien Ijeoma Osiatuma +4 more
doaj +1 more source
Journal of Medical Science, 2015 Introduction. Foot arch condition plays an important role in correct setting of lower limbs joints, proper muscles tone and well-being [1]. More and more frequently foot arch deviations affect population of school age children [2, 3].
Natalia Skowron +3 more
doaj +1 more source
Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami
Advanced Functional Materials, EarlyView.A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding +7 more
wiley +1 more source
Autoregressive Lag Length Selection Criteria in the Presence of ARCH Errors [PDF]
We study the effects of ARCH errors on the performance of the commonly used lag length selection criteria. The most important finding of this study is that SIC, FPE, HQC and BIC perform considerably well in estimating the true autoregressive lag length ...
Terence Tai-leung Chong +1 more
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Advanced Functional Materials, EarlyView.A multivalent antiviral platform based on honeycomb‐shaped DNA nanostructures (HC–Urumin) is developed to enhance the potency and breadth of the host defense peptide Urumin. Through spatially patterned trimeric presentation, HC–Urumin disrupts influenza A virus entry, improves cell viability, and reduces disease severity in vivo‐offering a modular and ...
Saurabh Umrao +11 more
wiley +1 more source
Study on Fine Numerical Simulation of Arch-locking Bolt in Soft Rock Roadway
Meikuang Anquan, 2020 Locking bolts are frequently used to control the failure of the supporting arch in soft rock roadway support system, but the design basis of the locking bolts parameters is not clear.
GUAN Qingsheng, YANG Bo, WANG Dechao, LI Weiteng, MEI Yuchun, YANG Ning, MA Haiyao
doaj +1 more source
Pelodictyon phaeoclathratifovme sp. nov., a new brown-colored member of the Chlorobiaceae forming net-like colonies [PDF]
, 1989 A new strain of the green sulfur bacteria was isolated from the monimolimnion of Buchensee (near Radolfzell, Lake Constance region, FRG). Single cells were rod-shaped, nonmotile and contained gas vacuoles. Typical net-like colonies were formed by ternary
Overmann, Jörg, Pfennig, Norbert
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