Results 1 to 10 of about 3,375,741 (170)

Two-Stage robust optimization problems with two-stage uncertainty [PDF]

open access: yesEuropean Journal of Operational Research, 2022
We consider two-stage robust optimization problems, which can be seen as games between a decision maker and an adversary. After the decision maker fixes part of the solution, the adversary chooses a scenario from a specified uncertainty set. Afterwards, the decision maker can react to this scenario by completing the partial first-stage solution to a ...
Marc Goerigk, Stefan Lendl, Lasse Wulf
openaire   +3 more sources

Retrospective study: risk assessment model for osteoporosis—a detailed exploration involving 4,552 Shanghai dwellers [PDF]

open access: yesPeerJ, 2023
Background Osteoporosis, a prevalent orthopedic issue, significantly influences patients’ quality of life and results in considerable financial burden. The objective of this study was to develop and validate a clinical prediction model for osteoporosis ...
Dan Han   +7 more
doaj   +2 more sources

On Two-Stage Guessing [PDF]

open access: yesInformation, 2021
Stationary memoryless sources produce two correlated random sequences Xn and Yn. A guesser seeks to recover Xn in two stages, by first guessing Yn and then Xn. The contributions of this work are twofold: (1) We characterize the least achievable exponential growth rate (in n) of any positive ρ-th moment of the total number of guesses when Yn is obtained
Robert Graczyk, Igal Sason
openaire   +4 more sources

One-stage versus two-stage revision of the infected knee arthroplasty - a randomized multicenter clinical trial study protocol

open access: yesBMC Musculoskeletal Disorders, 2021
Background A two-stage prosthesis exchange procedure has been the gold standard in surgical treatment of the chronically infected knee arthroplasty so far.
Martin Lindberg-Larsen   +4 more
doaj   +1 more source

Dose-staged Gamma Knife radiosurgery for meningiomas: A retrospective study in a single center

open access: yesFrontiers in Neurology, 2022
ObjectiveThis study aimed to study the efficiency and safety of a dose-staged Gamma Knife radiosurgery strategy for large meningiomas or meningiomas close to important nerve structures.MethodsThis study evaluates the outcome of a prospectively accrued ...
Xiu Gong   +14 more
doaj   +1 more source

A 7–13 GHz 10 W High-Efficiency MMIC Power Amplifier in 0.25 µm GaN HEMT Process

open access: yesApplied Sciences, 2022
With the increase in applications of the millimeter wave spectrum for phased array radar systems, mobile 7–13 communication systems, and satellite systems, the demand for a wideband, high-efficiency, high-power monolithic microwave integrated circuit ...
Aizhen Hu   +4 more
doaj   +1 more source

A two-stage solution

open access: yeseLife, 2021
The parasite that causes African sleeping sickness can be transmitted from mammals to tsetse flies in two stages of its lifecycle, rather than one as was previously thought.
Guegan, Fabien Marc   +1 more
openaire   +4 more sources

A Two-Stage Industrial Defect Detection Framework Based on Improved-YOLOv5 and Optimized-Inception-ResnetV2 Models

open access: yesApplied Sciences, 2022
Aiming to address the currently low accuracy of domestic industrial defect detection, this paper proposes a Two-Stage Industrial Defect Detection Framework based on Improved-YOLOv5 and Optimized-Inception-ResnetV2, which completes positioning and ...
Zhuang Li   +4 more
doaj   +1 more source

Two-Stage Evaporative Inlet Air Gas Turbine Cooling

open access: yesEnergies, 2021
Gas turbine inlet air-cooling (TIAC) is an established technology for augmenting gas turbine output and efficiency, especially in hot regions. TIAC using evaporative cooling is suitable for hot, dry regions; however, the cooling is limited by the ambient
Obida Zeitoun
doaj   +1 more source

Research on Two-Stage Semi-Active ISD Suspension Based on Improved Fuzzy Neural Network PID Control

open access: yesSensors, 2023
To better improve the ride comfort and handling stability of vehicles, a new two-stage ISD semi-active suspension structure is designed, which consists of the three elements, including an adjustable damper, spring, and inerter.
Linhao Jin   +3 more
doaj   +1 more source

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