Results 131 to 140 of about 113,940 (296)

Uncertainty and the price for crude oil reserves [PDF]

Innovations in futures, options, and derivative instruments permit active trading, speculating and hedging - linking markets for physical petroleum products with financial markets. These derivative markets continuously value petroleum delivered today and
Larson, Donald F., Considine, Timothy J.
core  

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Predictive models for perceived convenience of accessing outdoor activities among elderly with physical disabilities in rural China

BMC Public Health
Background The elderly, especially those with physical disabilities, often encounter barriers that prevent them from accessing outdoor activities. Their perceptions of the convenience of accessing outdoor activities may be influenced by various factors ...
Qi Xu, Youyi Lin, Yiqi He, Xianhong Zhou, Jinhai Liu, Dewang Shen, Fan Wu, Xin Lin, Yun Zhang, Taibiao Li, Tiebin Yan   +10 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Estimation and dynamic path on the convenience yields for commodities

, 2010
碩士本文沿用Lin and Duan (2005)所採用之便利殖利率持有成本與買權模型來估算實物商品之便利殖利率，研究對象包含貴重金屬、能源商品與金融債券等三類，分別包含黃金、白銀、天然氣、無鉛汽油、10年期美國國庫券與30年期美國國庫券等6種商品。本文除了估算便利殖利率外，更藉由現貨價格與期貨價格的波動與便利殖利率之關係，以驗證Samuelson (1965)假說。最後本文運用了GARCH(1，1)、GARCH(1，1)-M及EGARCH(1，1)等三種模型來配適便利殖利率的走勢，並比較模型之配適程度。
古必寬; Ku, Pi-kuan
core  

Analysis of economic crime in religious institutions using convenience theory: What is so special about motive, opportunity and willingness [PDF]

, 2018
There is a research debate whether or not religious people demonstrate less delinquent behavior in terms of white-collar crime. This article focuses on those members of religious institutions who become offenders, and the article attempts to explain ...
Gottschalk, Petter
core  

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

Advanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik, Fedor Kovalev, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Ilya Shadrivov, Mariusz Martyniuk   +6 more
wiley   +1 more source

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

Advanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin, Silvia Monchetti, Paolo Emilio Puddu, Luciano Teresi, Antonio DeSimone, Roberto Brighenti   +5 more
wiley   +1 more source

The media concept of mafia business in Iran: A convenience theory approach

, 2023
Convenience exists in the financial motive, the organizational opportunity, and the personal willingness for deviant behavior. These three themes can result in 14 convenience propositions as presented.This article aims to discuss the role of convenience in Iranian mafia and how it affects the perpetration of financially motivated crime.
Kamaei, Maryam, Abolhasani, Salameh, Farhood, Naghmeh, Gottschalk, Petter   +3 more
openaire   +1 more source

A Proline‐Integrated Donor–Acceptor Fluorophore: Water‐Vapor‐Responsive Mechanochromic Luminescence and Latent Fingerprint Visualization

Advanced Optical Materials, EarlyView.
A proline‐integrated donor–acceptor fluorophore enables multifunctional luminescence through rational molecular design. Water‐vapor‐responsive mechanochromic luminescence (MCL) with circularly polarized luminescence (CPL) switching and efficient visualization of latent fingerprints (LFPs) are realized from this single small organic molecule.
Hao Chen, Kazuki Kato, Yoshitane Imai, Suguru Ito   +3 more
wiley   +1 more source