Results 61 to 70 of about 8,459 (175)

Prospective Head Motion Correction in T1‐ and T2‐Weighted Long Echo Train Sequences Using Servo Navigation

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To integrate MR‐based servo navigation in MPRAGE and 3D‐TSE sequences and demonstrate its potential for prospective head motion correction in structural imaging. Methods Repeated modules of servo navigators were inserted before each preparation pulse of MPRAGE and 3D‐TSE sequences (before‐prep) for rapid convergence of motion parameter
Matthias Serger, Malte Riedel, Rüdiger Stirnberg, Thomas Ulrich, Nicolas Boulant, Klaas P. Pruessmann, Tony Stöcker, Philipp Ehses   +7 more
wiley   +1 more source

Assessing ChatGPT for taxonomic and floristic studies

Nordic Journal of Botany, EarlyView.
The advancement of biological sciences has long been closely linked to technological progress. ChatGPT, a generative artificial intelligence chatbot capable of producing human‐like conversational responses, has recently attracted attention as a potential support tool for scientific research.
Mykyta Peregrym, Olena Kozak, Ahmet Emre Yaprak, Alan Elliott, Pedro Bond Schwartsburd, Karime Abidkulova, Anna Voytsekhovich, Olena Danylevska   +7 more
wiley   +1 more source

Adaptive Channel Estimation based on Soft Information Processing in Broadband Spatial Multiplexing Receivers [PDF]

Telfor Journal, 2010
In this paper we present a novel approach in Multiple-Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) channel estimation technique based on a Decision Directed Recursive Least Squares (RLS) algorithm in which no pilot ...
P. Beinschob, U. Zölzer
doaj  

Calculation of high-frequency dynamic properties of squeezed O-ring for bearing support

Mechanical Engineering Journal, 2018
Determination and prediction of the dynamic properties of an O-ring for bearing support were performed. Utilizing O-rings as supporters of bearing is a promising way to suppress severe vibrations such as resonance and self-excited whirl experienced in ...
Tadayoshi SHOYAMA, Koji FUJIMOTO
doaj   +1 more source

Systemic bio‐inequity links poverty to biodiversity and induces a conservation paradox

People and Nature, EarlyView.
Abstract Biodiversity is declining globally while inequity is growing, and poverty rates are not improving. Global sustainable development and conservation initiatives aim to address biodiversity loss and poverty simultaneously. Through text analysis of global biodiversity policies, we identified a consistent narrative that countries with high ...
Conor Waldock, Van Thi Hai Nguyen, Margaret Awuor Owuor, Anna Samwel Manyanza, Ole Seehausen   +4 more
wiley   +1 more source

MRI in Sheep Model for Myelomeningocele Repair Using a Novel Polymer and Other Dural Patches

Prenatal Diagnosis, EarlyView.
ABSTRACT Objective To compare postnatal MRI outcomes after prenatal myelomeningocele repair using three different dural substitutes. Method 32 sheep fetuses were included, with 34.3%(11/32) serving as healthy controls and the remaining undergoing prenatal spinal lumbar defect creation to recreate a myelomeningocele in the fetus.
Usha D. Nagaraj, Marc Oria, Soner Duru, Chia‐Ying Lin, Beth M. Kline‐Fath, Jose L. Peiro   +5 more
wiley   +1 more source

A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation

Nihon Kikai Gakkai ronbunshu, 2016
An active magnetic bearing (AMB) is utilized widely in vacuum apparatuses such as a turbo molecular pump (TMP). The rotor supported by the AMB in the TMP is vibrated by the unbalance of the mass of the rotor, the electromagnetic force of the AMB and the ...
Taiki NAKAMURA, Shinji WAKUI
doaj   +1 more source

Synthetic polymer nanocarrier enhances dsRNA stability but not RNAi efficacy in Brassicogethes aeneus

Pest Management Science, EarlyView.
Experimental setup for dsRNA feeding in Brassicogethes aeneus to evaluate the effect of a synthetic polymer nanocarrier on RNAi efficiency. The experiment assessed whether the nanocarrier enhances RNAi after oral dsRNA delivery. (a) Stability of dsRNA–nanocarrier complexes was tested in simulated gut conditions. (b) Gene expression of αCOP and dre4 was
Triin Kallavus, Liina Soonvald, Iris Callewaert, Ana Isabel Silva, Ericmar Ávila Dos Santos, Silva Vilumets, Riina Kaasik, Sven Vereecken, Lenny Van Daele, Peter Dubruel, Jonathan Willow, Clauvis Nji Tizi Taning, Kristof De Schutter, Eve Veromann   +13 more
wiley   +1 more source

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

Strategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani, Mariano Mastrogiorgio, Giuseppe Carignani   +2 more
wiley   +1 more source

Making acute ischemic stroke thrombi visible in MRI imaging

Scientific Reports
Knowledge of thrombus behavior and visualization on MRI in acute ischemic stroke is less than optimal. However, MRI sequences could be enhanced based on the typical T1 and T2 relaxation times of the target tissues, which mainly determine their signal ...
Aglaé Velasco Gonzalez, Boris Buerke, Dennis Görlich, Cristina Sauerland, Manfred Fobker, Astrid Jeibmann, Walter Heindel, Andreas Faldum, Werner Paulus, Harald Kugel   +9 more
doaj   +1 more source