Results 181 to 190 of about 2,210,161 (360)
A Relationship Between Regression Tests and Volatility Tests of Market ncy [PDF]
Volatility tests are an alternative to regression tests for evaluating the joint null hypothesis of market efficiency and risk neutrality. Acomparison of the power of the two kinds of tests depends on what the alternative hypothesis is taken to be.
James H. Stock, Jeffrey A. Frankel
core
Highly Stable Perovskite Solar Cells Using Graphene and its Derivatives: A Review
Advanced Materials Interfaces, EarlyView.Graphene and its derivatives (GO, rGO, GQDs) are key to solving the critical instability of perovskite solar cells (PSCs). This review systematically explores the multifunctional roles of these 2D materials in enhancing PSC durability. When integrated into electrodes, transport layers, and encapsulation, their exceptional barrier properties and ...
M. Ashraful Hasan +6 more
wiley +1 more source
Managing East Asia's macroeconomic volatility [PDF]
East Asia has experienced a dramatic decrease in output growth volatility over the past 20 years. This is good news, as output growth volatility affects poor households because of coping strategies that have long-term, harmful consequences, and the ...
Olaberria, Eduardo, Rigolini, Jamele
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Soft Electromagnetic Actuator and Oscillator
Advanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.This work presents a groundbreaking soft electromagnetic system capable of bistable actuation and self‐regulated oscillation. Using liquid metal and silicone as a compliant conductor, the actuator enables force generation, sensing, and feedback with minimal power.
Noah D. Kohls, Yi Chen Mazumdar
wiley +1 more source
The Evaluation of Multiple Year Gas Sales Agreement with Regime Switching [PDF]
A typical gas sales agreement (GSA) also called a gas swing contract, is an agreement between a supplier and a purchaser for the delivery of variable daily quantities of gas, between specified minimum and maximum daily limits, over a certain number of ...
Boda Kang, Carl Chiarella, Les Clewlow
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Advanced Materials Technologies, EarlyView.The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz +5 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.Recent efforts of memristor array‐based hardware neuromorphic computing are discussed for efficient application of VMM on‐chip level in terms of circuit integration and actual application of AI algorithms. The parallel data processing principle of VMM operation is briefly reviewed, and hardware VMM is presented including convolutional transformation ...
Jingon Jang, Sang‐gyun Gi
wiley +1 more source
A machine learning approach to risk based asset allocation in portfolio optimization. [PDF]
Sci RepAgal S, Raulji K, Odedra ND.
europepmc +1 more source
Advanced Materials Technologies, EarlyView.Electrolyte‐jet (EJ) 3D printing turns copper ions into precisely arranged copper microspheres, which combine with flexible polymers and carbon nanomaterials to create durable, high‐sensitivity sensors. These sensors accurately monitor human motion and physiological signals. Real‐time robotic hand control via gesture mirroring demonstrates an intuitive
Wending Gu +2 more
wiley +1 more source