Results 21 to 30 of about 5,365 (256)

A abolição do tráfico de escravos no Atlântico Sul: Portugal, o Brasil e a questão do contrabando de africanos

open access: yesAlmanack
Resumo Este artigo aborda a temática da abolição do tráfico de escravos realizado no Atlântico Sul. Cumpre destacar que o estudo que aqui se apresenta não traz uma discussão a partir do enquadramento das relações diplomáticas anglo-brasileiras com a ...
Gilberto da Silva Guizelin
doaj   +1 more source

Routes des captifs pour la traite négrière transatlantique en Afrique centrale : du xve au xixe siècle.

open access: yesÉtudes Caribéennes, 2021
The transatlantic slave trade deported millions of captives across multiple and interregional trade routes. Central Africa has been the point of departure for captives from several sub-regions in the centre and east of the continent.
Arsène Francoeur Nganga
doaj   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

open access: yesAdvanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh   +8 more
wiley   +1 more source

Strategy of Triple‐Gradient in Binary Pixels for Flexible Pressure Sensing with High Sensitivity and Wide‐Range Linearity

open access: yesAdvanced Science, EarlyView.
A flexible pressure sensor with triple‐gradient design of conductivity, modulus, and dimension in binary micro‐dome pixels is proposed. Based on precisely‐designed CNT/PDMS matrix, the device exhibits a linear sensitivity of 974.1 kPa−1 across range up to 1.8 MPa (R2 > 0.99), offering an effective strategy for potential applications in healthcare ...
Yifan Liu   +9 more
wiley   +1 more source

Bajo el negro velo de la ilegalidad. un análisis del mercado de esclavos dominicano 1746-1821

open access: yesNuevo mundo - Mundos Nuevos, 2016
The Dominican slave market was affected by illegality at the end of the colonial period. Difficulties to implement a legal slave trade and the different slave codes who ruled Santo Domingo after 1795 caused the slaveholders reaction.
José Luis Belmonte Postigo
doaj   +1 more source

Leading the Pack: Next‐Generation Batteries for Humanoid Robotics

open access: yesAdvanced Science, EarlyView.
Humanoid robots challenge traditional and anticipated energy technologies. Humanoid robot benchmarks of runtimes and energy demands for industry applications inform humanoid robot battery design choices at the cell level, pack level, and system level.
Matthew Bergschneider   +6 more
wiley   +1 more source

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

open access: yesAdvanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

The Gold Mining Boom, North European Capital, and the Reorganization of the Portuguese Slave Trade in Angola (1710-1730)

open access: yesCulture & History Digital Journal, 2023
The article explores the reorganization of the Portuguese slave trade in Angola in the early eighteenth century when an upsurge in traffic took place along with a gold mining boom in Brazil.
Maximiliano M. Menz
doaj   +1 more source

Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu   +5 more
wiley   +1 more source

Wczesnośredniowieczny handel niewolnikami w bałtycko-orientalnej strefie wymiany w świetle znalezisk kajdan I kłódek

open access: yesSlavia Antiqua
Slavery was common in early medieval Europe with the so-called Baltic-Oriental exchange systemas one of the most important markets. There is a view that the slave trade is difficult to detect in material sources.
Błażej Stanisławski, Aleksander Musin
doaj   +1 more source

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