Results 121 to 130 of about 270,969 (300)
Technical Challenges in the Construction of Gothic Vaults: The Gothic Theory of Structural Design [PDF]
, 2012 The construction of a Gothic vault implied the solution of several technical challenges. The literature on Gothic vault construction is quite large and its growth continues steadily.
Huerta Fernández, Santiago
core +1 more source
Advanced Science, EarlyView.Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh +8 more
wiley +1 more source
Global and local synthetic descriptions of the piano soundboard
, 2011 Up to around 1.1 kHz, the soundboard of the piano behaves like a homogeneous plate whereas upper in frequency, it can be described as a set of waveguides defined by the ribs.
Boutillon, Xavier, Ege, Kerem
core +1 more source
Advanced Science, EarlyView.Floral meristem (FM) activity is crucial for the initiation of floral organs. In this study, SE represses IPT7 expression and cytokinin signaling via both the miR171c‐5p–KNAT2 and miR164c–CUC1/2–KNAT2 regulatory modules, thereby repressing FM activity. In contrast, STM induces both KNAT2 and IPT7 expression.
Wen Yang +11 more
wiley +1 more source
Journal of Pharmacy and Bioallied SciencesThis case report is unique due to the rare combination of a history of no trauma and a history of scoliosis correction surgery with instrumentation performed 1 year before presentation.
Fahad Abuguyan
doaj +1 more source
Folding retractable protective dome for space vehicle equipment [PDF]
, 2008 A folding, retractable dome for protecting a feature, such as a docking mechanism, a hatch or other equipment at an exterior surface of a space vehicle, includes a plurality of arcuate ribs, each having opposite ends respectively pinioned at opposite ...
Clark, Paul R., Messinger, Ross H.
core +1 more source
Advanced Science, EarlyView.A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang +3 more
wiley +1 more source
The Influence of Swirl Brakes on the Rotordynamic Forces Generated by Discharge-to-Suction Leakage Flows in Centrifugal Pumps [PDF]
, 1993 Increasing interest has been give to swirl brakes as a means of reducing destabilizing rotordynamic forces due to leakage flows in new high speed rocket turbopumps.
Acosta, Allan J. +3 more
core
Enhancing Electrical Impedance Based Deformation Sensing with Dielectric Current Guide
Advanced Electronic Materials, EarlyView.This work introduces a dielectric‐based field manipulation strategy for electrical impedance tomography in soft robotics. By using silicone as a passive electric field guide, improved deformation sensing accuracy and reduced interference are achieved without embedding conductive components.
Arsen Abdulali +3 more
wiley +1 more source
Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes +2 more
wiley +1 more source