Results 71 to 80 of about 208,702 (369)

Self‐Maintainable Electronic Materials with Skin‐Like Characteristics Enabled by Graphene‐PEDOT:PSS Fillers

open access: yesAdvanced Science, EarlyView.
Graphene‐PEDOT:PSS fillers revolutionize soft electronics by transforming jelly‐like materials into skin‐like systems with self‐healing, heat‐responsiveness, and multiplex sensing capabilities. This novel material exhibits exceptional printability, flexibility, and adhesiveness, enabling seamless integration into bioelectronics and tissue‐cyborganic ...
Morteza Alehosseini   +7 more
wiley   +1 more source

Examining the Free Riding of Arms Exports in a Military Alliance: Study of NATO Member Countries [PDF]

open access: yesعلوم و فنون نظامی
Objective: Free riding in arms exports refers to the phenomenon wherein arms-exporting countries can reduce their military spending by exporting arms and military equipment to their allies.
Abolghasem Golkhandan   +1 more
doaj   +1 more source

State of the Art of Low‐Frequency Acoustic Modulation: Intensity Enhancement and Directional Control

open access: yesAdvanced Science, EarlyView.
High intensity low‐frequency sound sources hold significant value in many fields. However, their long wavelength, strong penetrability, and tendency to diffract make direction control and intensity enhancement challenging. Acoustic generators and metamaterial‐based acoustic devices still face issues such as low energy efficiency, poor directional ...
Jingsong Xu   +13 more
wiley   +1 more source

Werner Heisenberg and the German Uranium Project 1939 - 1945. Myths and Facts [PDF]

open access: yesarXiv, 2016
The results of a careful analysis of all the available information on the activities of Heisenberg and of his talks during the years 1939 to 1945 can be summarized in the following way. Like several other German physicists Heisenberg was drafted by German Army Ordnance when war began in Europe in September 1939 to investigate whether the energy from ...
arxiv  

Ligand‐Driven Annular‐Epitaxial Growth of CuS‐Au Heterostructures as Trinity Plasmonic Nanozyme for Multimode Diagnosis of Pathogenic Bacteria

open access: yesAdvanced Science, EarlyView.
CuS‐Au heterostructures were synthesized via ligand‐regulated annular‐epitaxial growth strategy, biotin‐Concanavalin A (ConA) was modified on the CuS‐Au heterostructures for universal bacterial‐labelling, assembled with strip, Streptococcus pneumoniae and Klebsiella pneumoniae can be sensitively recognized by SERS/colorimetric/temperature three‐mode ...
Xiaorui Lin   +5 more
wiley   +1 more source

Avrocar: a real flying saucer [PDF]

open access: yesarXiv, 2015
One of the most unusual military aircraft programs V / STOL was the Avro VZ-9 "Avrocar". Designed to be a real flying saucer, the Avrocar was one of the few V / STOL to be developed in complete secrecy. Despite significant changes in the design, during flight tests, the Avrocar was unable to achieve its objectives, and the program was eventually ...
arxiv  

Catastrophic health expenditure and inequalities -- a district level study of West Bengal [PDF]

open access: yesarXiv, 2020
In this study, I aimed to estimate the incidence of catastrophic health expenditure and analyze the extent of inequalities in out-of-pocket health expenditure and its decomposition according to gender, sector, religion and social groups of the households across Districts of West Bengal.
arxiv  

The future demand for military expenditure in Argentina

open access: yesArms Control, 1986
(1986). The future demand for military expenditure in Argentina. Arms Control: Vol. 7, No. 2, pp. 197-204.
Looney, R.E., Fredericksen, P.C.
openaire   +4 more sources

Military Expenditures in the Maelstrom of the Globalized World [PDF]

open access: yesEconomic Research-Ekonomska Istraživanja, 2010
The concept of military expenditures is as old as the first antic civilizations. The military, as the first and only line of defense, has always had a great role in the expenditures of countries. Military expenditures changed through history, as has the very understanding of the armed forces which represented the military might of a country.
Aleksandar Major, Sandra Krtalić
openaire   +3 more sources

What matters for agricultural trade? Assessing the role of trade deal provisions using machine learning

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract This paper employs machine learning to determine which preferential trade agreement (PTA) provisions are relevant to agricultural trade patterns and the factors that may influence their adoption. Utilizing the three‐way gravity model, we apply plug‐in Lasso regularized regression to pinpoint predictive PTA provisions for agricultural trade ...
Stepan Gordeev   +3 more
wiley   +1 more source

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