Results 121 to 130 of about 264,826 (296)

An optimizing microseismic method for rock burst early warning based on mining production process

open access: yesDeep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han   +6 more
wiley   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Changes in Eating Disorder Symptoms in Perinatal US Military Servicewomen

open access: yesInternational Journal of Eating Disorders, EarlyView.
ABSTRACT Objective The perinatal period is a window of exacerbated vulnerability for eating disorder symptoms. Moreover, US military servicewomen represent a population at increased risk for eating disorder psychopathology relative to civilians.
Katherine A. Thompson   +10 more
wiley   +1 more source

Jacky Tar

open access: yes, 1973
jackatar nRuidhle Cailleach Eachainn Mhoir: "or, Cawdor Fair." KEY C STRATHSPEY d'.,t:l.,s _l.d'_:m s.,l:m s :s. _l,t_ D.C.

core  

Catalytic Biomass Gasification Process in Fluidized bed Reactor [PDF]

open access: yes, 2009
This thesis focuses on the development of a new catalytic system for conversion of tar produced during biomass gasification in a fluidized bed gasifier in order to overcome the typical drawbacks (low activity, coke deactivation) of conventional catalysts.
Piriou, Bruno
core  

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

open access: yesEcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang   +6 more
wiley   +1 more source

Sulanan Alanlarda Sulama Yöntemi ve Su Kalitesine Bağlı Olarak Tuz Dengesindeki Değişmeler

open access: yesJournal of Agricultural Sciences, 1997
Sulama amac ı yla kullan ı lan sular, iyi kalitede olsalar dahi içerisinde tuzlan içerirler. Sulama ile alana iletilen bu tuzlar kök bölgesinde birikirler.
Engin Yurtseven, Ahmet Öztürk
doaj  

3‐Reactor Chemical Looping System for Point Source CO2 Capture and Subsequent Conversion for Liquid Fuel Production

open access: yesEcoEnergy, EarlyView.
This study presents a novel 3‐reactor chemical looping system for CO2 capture and subsequent utilization with biomass and natural gas for producing liquid fuels. Using Ca2Fe2O5\Fe2O3 oxygen carriers, it achieves 60% CO2 capture efficiency, ∼80% syngas purity, and autothermal operation, offering a scalable, carbon‐negative route to sustainable fuels ...
Krutarth Pandit   +6 more
wiley   +1 more source

Electrolytic (C2CNT) Carbon Nanotubes Made From CO2 as an Inexpensive Carbon Sink and High‐Capacity Li‐Ion Battery Graphite Replacement

open access: yesEcoEnergy, EarlyView.
Carbon‐negative carbon nanotubes produced by molten CO2 electrolysis offer a low‐cost, high‐performance alternative to graphite in Li‐ion battery anodes. Replacing conventional carbon materials with electrolytic CNTs can improve battery capacity and charging performance while reducing costs and contributing to carbon mitigation.
Gad Licht, Stuart Licht
wiley   +1 more source

Sulama Şebekelerinde Sistem Performansının Değerlendirilmesi

open access: yesJournal of Agricultural Sciences, 1998
Bu çal ışmada DSI taraf ı ndan in şa edilen ve işletilen I.Bölge sulama şebekelerinin 1984-1994 y ı llar ı na ilişkin su kullan ı m, tarı msal ve ekonomik etkinlik göstergeleri hesaplanm ış ve sulama sistem performans ı değerlendirilmilştir.Su kullan ı
Emel Seçkin Kocabaş, İrfan Girgin
doaj  

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