Results 111 to 120 of about 452,946 (300)

Annual report.

open access: yes
Vols. for 1913-1940 called 1st-28th.Mode of access: Internet.Issued by the State Inspector of Coal Mines, 1913-39; by the Coal Mine Inspection Dept., 1940-59.Continued by: Colorado. Division of Mines. Coal.Continues: Colorado.
Colorado. Coal Mine Inspection Division. Coal.   +2 more
core  

Synthesis of Ladder and Flexible Polysulfonimides Directly From Anionic Monomers: Investigating Structure–Property Convergence in Succinonitrile–Polymer Electrolyte Blends

open access: yesAngewandte Chemie, EarlyView.
Direct synthesis of sulfonimide‐based polymers of intrinsic microporosity enables comparison with compositionally similar flexible analogs. Incorporation of a common pore‐filling transport medium drives these fundamentally different polymer architectures toward similar bulk conductivity and mechanical properties while revealing distinct microscopic ion‐
Abraham Herzog‐Arbeitman   +8 more
wiley   +2 more sources

Coal petrography and thermal maturity of organic matter in sedimentary rocks of the Archipelago New Siberian Islands [PDF]

open access: yesНефтегазовая геология: Теория и практика
The article presents the results of studying sedimentary rock samples from outcrops of the Archipelago New Siberian Islands using coal petrography methods.
Sobolev P.O.
doaj  

Ecoefficiency Analysis and Regression in Data Conversion for Spiking Neural Network Training

open access: yesAdvanced Intelligent Systems, EarlyView.
The environmental footprint of spiking neural networks is quantified during dataset encoding and training for autonomous driving regression across three benchmarks. Temporal depth emerges as the dominant driver of energy consumption and CO2 emissions, while the accuracy–energy trade‐off proves dataset‐dependent. On conventional hardware, spiking models
Fernando S. Martínez   +3 more
wiley   +1 more source

Report of the Inspector of Coal Mines, State of Kansas, from ...

open access: yes
Report year ends June 30.Report for 1903/1904 covers period from Jan. 1, 1903 to June 30 1904.Mode of access: Internet.Continued by: Kansas. Mine Inspection Dept.
Kansas. State Inspector of Coal Mines.
core  

The importance and state of coal industry in Turkey's energy policy

open access: yes, 2014
31st Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2014 -- 6 October 2014 through 9 October 2014 -- 110055Coal which has widely reserve in the world has important position in energy raw ...
Kekeç B., Bilim N.
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Quantitative Assessment and Source of Heavy Metals in Bricks: A Case Study of Lakki Marwat, Khyber Pakhtunkhwa, Pakistan

open access: yesPakistan Journal of Analytical & Environmental Chemistry
Humans' indiscriminate usage of heavy metals has a negative impact on the world's natural ecosystem. One of the main causes of contaminating the fresh and healthy atmosphere in rural Pakistan is the use of coal and soil in an improper manner by brick ...
Muhammad Bilal   +4 more
doaj   +1 more source

Spectrophotometric determination of phosphorus in coal and coal ash using bismuth-phosphomolybdate complex [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
A modified spectrophotometric method using the bismuth phosphomolybdate complex for the determination of phosphorus in coal and coal ash is suggested. Bismuth together with phosphate and molybdate forms a very stable complex in acid medium which turns ...
VESNA M. KALJEVIC   +4 more
doaj  

Reverse auctions for drought‐responsive water buybacks: Evidence from co‐designed lab and field experiments

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Protecting endangered aquatic species while sustaining farming communities can require water buyback programs that are both cost‐effective and responsive to the variability and unpredictability of drought conditions. Working in close partnership with The Nature Conservancy and the Georgia Water Planning and Policy Center, we co‐design parallel
Lusi Xie   +5 more
wiley   +1 more source

TRADE-OFFS BETWEEN SEVERANCE TAX REVENUES AND COAL MINING EMPLOYMENT [PDF]

open access: yes
A severance tax can provide local jurisdictions with additional revenues to finance economic development, yet the imposition of a tax may create coal industry employment losses.
Findeis, Jill L., Shortle, James S.
core  

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