Results 91 to 100 of about 737,101 (308)

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

open access: yesAdvanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal   +7 more
wiley   +1 more source

The right to mine? Discourse analysis of social impact assessments of mining projects in Finnish Lapland in the 2000s [PDF]

open access: yes, 2015
Lapland, the northernmost county of Finland, has promising mineral deposits and over half of all Finnish mining operations. In the 2000s two new metallic mineral mines were opened in Lapland, while three projects are undergoing the environmental impact ...
Suopajärvi, Leena
core   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

STRENGTHENING OF LABOUR DISCIPLINE AT ENTERPRISES OF THE FUEL AND ENERGY COMPLEX OF KUZBASS IN THE MID 20TH CENTURY

open access: yesВестник Кемеровского государственного университета, 2015
The paper deals with labour discipline, the forms and methods of work directed at its strengthening at the enterprises of the fuel and energy complex of Kuzbass on the basis of archival, statistical materials and periodicals.
I. M. Trefilkina
doaj  

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

open access: yesAdvanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena   +6 more
wiley   +1 more source

SILVER ROUTES IN EUROPE AT THE BEGINNING OF NEW AGE AND THE FUGGERS' MINING-FINANCIAL EMPIRES

open access: yesRudarsko-geološko-naftni Zbornik, 2002
After the discovery of America, major imports of precious metals (gold and silver) and objects made of them caused a "silver fever" in Europe, so the exploitation of already discovered deposits of silver ore was accelerated, as well as the new ...
Berislav Šebečić
doaj  

On the causes of fires and accidents in coal mines

open access: yesМінеральні ресурси України
Dynamic phenomena in coal mines, which occur during the extraction of hard coal, are among the most dangerous hazards in the mining industry, often leading to accidents and loss of life.
Yu. I. Voitenko   +2 more
doaj   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Actores públicos y privados de la fiscalidad minera española en el siglo xix

open access: yesMélanges de la Casa de Velázquez, 2016
For several decades after 1868 the Spanish tax on mining introduced by Fausto Elhuyar’s decree of 1825 all but disappeared through pressure from an ultra-liberal state apparatus, just as the country embarked on large-scale mining controlled by large ...
Gérard Chastagnaret
doaj   +1 more source

How Can Economists Help Clear Landmines and Unexploded Ordnance? [PDF]

open access: yes
Millions of mines lie in or on the ground in 62 countries resulting in thousands of deaths and injuries each year. Most mines are cleared using probes and hand held mine detectors; although sniffer dogs and a variety of machines are becoming more common.
Marsh, Dan
core   +1 more source

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