Results 151 to 160 of about 1,368,932 (431)

Polyaspartic Acid‐Calcium‐Lanthanum Complexes Induce Antibacterial Remineralization of Dentin and In‐Depth Occlusion of Dentinal Tubules

open access: yesAdvanced Science, EarlyView.
Polyaspartic acid‐calcium‐lanthanum (PAsp‐Ca‐La) complexes could induce antibacterial remineralization of demineralized dentin and in‐depth occlusion of dentinal tubules (DTs) with lanthanum‐doped hydroxyapatite (La‐HAp) via polyelectrolyte‐cation complexes pre‐precursor (PCCP) process, allowing the release of La3+ in response to acids generated by ...
Ling Zhu   +12 more
wiley   +1 more source

Potential order-of-magnitude enhancement of wind farm power density via counter-rotating vertical-axis wind turbine arrays [PDF]

open access: yesarXiv, 2010
Modern wind farms comprised of horizontal-axis wind turbines (HAWTs) require significant land resources to separate each wind turbine from the adjacent turbine wakes. This aerodynamic constraint limits the amount of power that can be extracted from a given wind farm footprint.
arxiv  

Sustainable Development of High‐performance Poly(ester‐imine) Biobased Thermosets

open access: yesAdvanced Science, EarlyView.
Schiff‐based epoxy monomers derived from renewable natural resources are used to design robust structures by cross–linking with bio‐anhydrides. The resulting eco‐friendly, high‐performance thermosets feature two cleavable bonds, offering versatility for various applications.
Roxana Dinu   +3 more
wiley   +1 more source

Synthetic mutualism in engineered E. coli mutant strains as functional basis for microbial production consortia

open access: yesEngineering in Life Sciences, Volume 23, Issue 1, January 2023., 2023
Abstract In nature, microorganisms often reside in symbiotic co‐existence providing nutrition, stability, and protection for each partner by applying “division of labor.” This principle may also be used for the overproduction of targeted compounds in bioprocesses.
Tobias Müller   +4 more
wiley   +1 more source

Aluminum Scandium Nitride as a Functional Material at 1000 °C

open access: yesAdvanced Electronic Materials, EarlyView.
Aluminum scandium nitride (AlScN) exhibits remarkable ferroelectric, piezoelectric, and dielectric stability at extreme temperatures. This study demonstrates the robust performance of TaSi2/AlScN/TaSi2 capacitors up to 1000 °C, revealing a substantial increase in piezoelectricity and a marked reduction in coercive field.
Venkateswarlu Gaddam   +12 more
wiley   +1 more source

An analysis of organism lifelines in an industrial bioreactor using Lattice‐Boltzmann CFD

open access: yesEngineering in Life Sciences, Volume 23, Issue 1, January 2023., 2023
Abstract Euler‐Lagrange CFD simulations, where the biotic phase is represented by computational particles (parcels), provide information on environmental gradients inside bioreactors from the microbial perspective. Such information is highly relevant for reactor scale‐down and process optimization.
Cees Haringa
wiley   +1 more source

A Review on Performance Calculation and Design Methodologies for Horizontal-Axis Wind Turbine Blades

open access: yesEnergies
The efficient, low-cost, and large-scale development and utilization of offshore wind energy resources is an inevitable trend for future growth. With the continuous increase in the scale of wind turbines and their expansion into deep-sea locations, there
Rongyu Zha   +9 more
doaj   +1 more source

Edge Intelligence Empowered UAVs for Automated Wind Farm Monitoring in Smart Grids [PDF]

open access: yesarXiv, 2020
With the exploitation of wind power, more turbines will be deployed at remote areas possibly with harsh working conditions (e.g., offshore wind farm). The adverse working environment may lead to massive operating and maintenance costs of turbines. Deploying unmanned aerial vehicles (UAVs) for turbine inspection is considered as a viable alternative to ...
arxiv  

U.S. Wind Turbine Manufacturing: Federal Support for an Emerging Industry [PDF]

open access: yes, 2011
[Excerpt] This report discusses the U.S. wind turbine manufacturing industry, its supply chain, employment and international trade trends, major federal policy efforts aimed at supporting the industry, and issues affecting its future. The wind industry’s
Platzer, Michaela D
core   +3 more sources

Innovative concepts for aerodynamic control of wind turbine rotors [PDF]

open access: yes, 1992
New systems for the aerodynamic control of wind turbine rotors are being studied in various projects funded by the UK Department of Energy. Results from a current project, ongoing at the National Wind Turbine Test Centre (NWTC) in Scotland are presented.
BOWLES, A   +4 more
core   +1 more source

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