Results 41 to 50 of about 3,702,210 (399)

Laparoscopic repair of a large interstitially incarcerated inguinal hernia. [PDF]

open access: yes, 2011
A 68 year old female presented for elective repair of an abdominal wall hernia. Preoperative CT imaging revealed a right inguinal hernia defect with hernia contents coursing cephalad between the external and internal abdominal oblique muscles.
Glaser, J   +3 more
core   +1 more source

Optimization of constant power control of wind turbines to provide power reserves [PDF]

open access: yes, 2013
In several countries, the wind power penetration increased tremendously in the last years. As the current wind turbines do not participate in frequency control nor reserve provision, this may compromise the proper functioning of the primary control and ...
De Kooning, Jeroen   +4 more
core   +1 more source

Grand challenges in the science of wind energy

open access: yesScience, 2019
A multifaceted future for wind power Modern wind turbines already represent a tightly optimized confluence of materials science and aerodynamic engineering. Veers et al.
P. Veers   +29 more
semanticscholar   +1 more source

A Critical Review of Wind Power Forecasting Methods—Past, Present and Future

open access: yesEnergies, 2020
The largest obstacle that suppresses the increase of wind power penetration within the power grid is uncertainties and fluctuations in wind speeds. Therefore, accurate wind power forecasting is a challenging task, which can significantly impact the ...
Shahram Hanifi   +3 more
semanticscholar   +1 more source

A review of modelling techniques for floating offshore wind turbines

open access: yesWind Energy, 2021
Modelling floating offshore wind turbines (FOWTs) is challenging due to the strong coupling between the aerodynamics of the turbine and the hydrodynamics of the floating platform.
A. Otter   +4 more
semanticscholar   +1 more source

Investigation on the impact of design wind speed and control strategy on the performance of fixed-pitch variable-speed wind turbines [PDF]

open access: yes, 2017
Wind turbine blade design optimization remains one of the fundamental research areas for modern wind turbine technology. The general design process for fixed-pitch variablespeed wind turbine blades assumes the rated wind speed as the design wind speed ...
Liu, Xiongwei   +2 more
core   +1 more source

Combined hydro-wind generation bids in a pool-based electricity market [PDF]

open access: yes, 2009
Present regulatory trends are promoting the irect participation of wind energy in electricity markets. The final result of these markets sets the production scheduling for the operation time, including a power commitment from the wind generators. However,
Angarita Márquez, Jorge Luis   +2 more
core   +4 more sources

Multiplatform evaluation of global trends in wind speed and wave height

open access: yesScience, 2019
Ocean winds blowing harder Two frequently asked questions about how climate warming will affect the environment are whether windiness might change and what effects that might have on ocean waves.
I. Young, A. Ribal
semanticscholar   +1 more source

Potential Early Risk Biomarkers for Reduced Forced Expiratory Volume in Children Post‐Hematopoietic Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT We sought to identify potential early risk biomarkers for lung disease in children post‐allogeneic HCT. Patients with pulmonary function tests 3 months post‐transplant and plasma samples between days 7 and 14 post‐HCT were included. Six of 27 subjects enrolled had reduced forced expiratory volume 1 (FEV1) z scores.
Isabella S. Small   +3 more
wiley   +1 more source

Gender equality in local economic development in Scotland, case study for the international project W.IN D. – Women in Development [PDF]

open access: yes, 2007
As one of the partners of the research consortium, EPRC was in charge of the elaboration of a case study on Scotland to identify and analyse: (i) practical experiences with strategies to support the participation of women in local development processes ...
Polverari, Laura
core  

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