Results 51 to 60 of about 688,408 (168)

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source

“Thinking Out Loud” and “Pivoting on the Fly”—An Empirical Review and Critical Incident Study of How Physicians Engage in Incidental Learning Amidst Complexity

Human Resource Development Quarterly, EarlyView.
ABSTRACT This study explores incidental learning among physicians navigating uncertainty during the COVID‐19 pandemic. Using a constructivist research design, we conducted a literature review of 13 empirical studies on incidental learning in complexity and analyzed critical incident interviews with 12 emergency medicine and intensive care physicians ...
Henriette Lundgren, Karen E. Watkins, Victoria J. Marsick, Dimitrios Papanagnou, Urvashi Vaid   +4 more
wiley   +1 more source

Characterization of ash derived from combustion of paper mill waste sludge: Comparison with municipal solid waste incinerator ash [PDF]

, 2007
Fly ash derived from incineration of Malaysian paper mill waste sludge (PMWS) was physically and chemically characterized in order to determine its potential toxicity as well as its application as cement replacement material.
Kadir, S.A.S.A., Mahazer, S.Z., Siti Zaharah Mahazer, Sharifah Nawirah, Syed-Ariffin, S.N., Alifah Salwa Abdul-malik, Abdul-Malik, A.S., Zurinawati Zamzuri, Yin, C-Y, Zamzuri, Z., Chun Yang Yin, Sharifah Aishah Syed Abdul Kadir   +11 more
core  

The compressive strength of fly ash concrete and its mineralogy [PDF]

, 1994
Includes bibliographical references.The use of fly ash as a cement extender in portland cement concrete is well established. Strict requirements are set for the fly ash on its physical properties and chemical composition to ensme its successful ...
Gogol, Volker R
core   +1 more source

GRANULASI ABU LAYANG BATUBARA MENGGUNAKAN KARAGENAN DAN APLIKASINYA SEBAGAI ADSORBEN Pb(II)

Jurnal Bahan Alam Terbarukan, 2015
The increase of electrical industry using coal as an energy source resulting in accumulated solid waste such as fly ash.Coal fly ash is mainly composed of some oxides including Al2O3, SiO2 having active siteand unburned carbon as a mesopore material that
Widi Astuti, Indah Nurul Izzati
doaj  

Impact of Waste‐Derived Slate Dust on Structural, Thermal, and Thermomechanical Behavior of Recycled Poly(Ethylene Terephthalate)

Polymer Composites, EarlyView.
This study investigates the use of waste slate dust as a filler in recycled PET. Incorporating up to 20 wt% slate dust caused no filler‐induced molecular degradation, increased the crystallization temperature, thermal conductivity, and storage modulus. ABSTRACT Recycled polyethylene terephthalate (rPET) is widely considered a sustainable alternative to
Aditya Chauhan, Tej Singh, Andrea Fiorati, Sampat Singh Bhati, László Lendvai, Luigi De Nardo, Robert Brüll   +6 more
wiley   +1 more source

Instantaneous Capture and Mineralization of Flue Gas Carbon Dioxide: Pilot Scale Study [PDF]

, 2010
Multiple CO2 capture and storage (CCS) processes are required to address anthropogenic CO2 problems. However, a method which can directly capture and mineralize CO2 at a point source, under actual field conditions, has advantages and could help offset ...
Pradip Bhattacharyya, Katta J Reddy, Hollis Weber, KJ Reddy, David Taylor, Paul Fahlsing, Mikol Christensen, Thomas Foulke, Argyle Morris   +8 more
core   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source

Recovery of SiO₂ and Al₂O₃ from coal fly ash

, 2016
>Magister Scientiae - MScMost of the world's energy production is still mainly achieved by the combustion of coal in power stations. Coal fly ash is the inevitable waste product that accumulates to metric ton volumes each year.
Sedres, Grant
core   +1 more source

The Rise of Layered Double Hydroxides (LDHs) in Hexavalent Chromium (Cr(VI)) Pollution Treatment: Performance, Optimization, and Challenges

Safety Science and Technology, EarlyView.
This article focus on the basic properties, adsorption processes, performance improvement strategies, and the facing challenges of LDHs. ABSTRACT Layered double hydroxides (LDHs), a class of inorganic materials with unique layered structures, exhibit significant potential in environmental remediation.
Wenqi Fan, Shuai Tian, Jiwen Lai, Zhiwu Min, Qingyang Qiu, Xian Li, Zuwen Liu   +6 more
wiley   +1 more source