Results 61 to 70 of about 172,239 (316)

High-density support matrices: Key to the deep borehole disposal of spent nuclear fuel [PDF]

, 2008
Deep (4–5 km) boreholes are emerging as a safe, secure, environmentally sound and potentially cost-effective option for disposal of high-level radioactive wastes, including plutonium.
Burley, D., Gibb, F.G.F., Hesketh, K.W., McTaggart, N.A., Travis, K.P.   +4 more
core   +1 more source

Utilization of Waste Materials Using the Müller–Kühne Process—A Life Cycle Inventory Study

Chemie Ingenieur Technik, EarlyView.
This study presents a Life Cycle Inventory of the Müller–Kühne process (MKP), which converts gypsum waste into sulfuric acid and cement clinker. The MKP outperforms conventional cement production regarding material yield, though its specific energy demand is higher. Consequently, potentials for circular gypsum waste utilization are discussed.
Leon Kassner, Manfred Renner, Peter Fröhlich, Martin Bertau, Philip Biessey   +4 more
wiley   +1 more source

Evaluating megaprojects: from the “iron triangle” to network mapping [PDF]

, 2014
Evaluation literature has paid relatively little attention to the specific needs of evaluating large, complex industrial and infrastructure projects, often called ‘megaprojects’.
Altshuler A, Argyris C, Bornstein L, Cantarelli CC, Dryzek JS, Gibbons M, Kickert WJM, Loorbach D, Nowotny H, Osland O, Renault M, Sen A, Stark D, Wachs M   +13 more
core   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

DISPOSAL OF LOW AND INTERMEDIATE LEVEL WASTE IN HUNGARY

Rudarsko-geološko-naftni Zbornik, 2012
There are two operating facilities for management of low and intermediate level radioactive waste in Hungary. Experience with radioactive waste has a relatively long history and from its legacy some problems are to be solved, like the question of the ...
Bálint Nős, Péter Molnár , Attila Baksay   +2 more
doaj  

Simulation of Groundwater-Level Behavior in Southeast Region of Korea Induced by 2016 Gyeong-Ju Earthquake Using 2D Hydro-Mechanical Coupled Bonded Particle Modeling

Applied Sciences
This study examines the hydrogeological response to the 12 September 2016 Gyeong-Ju earthquake (ML 5.8) in the southeastern region of the Korean Peninsula. Using 2D hydro-mechanical coupled bonded particle modeling, we simulated the dynamic fault rupture
Hyunjin Cho, Se-Yeong Hamm, Jeoung Seok Yoon, Soo-Gin Kim, Jae-Yeol Cheong   +4 more
doaj   +1 more source

Validation of MCNP NPP Activation Simulations for Decommissioning Studies by Analysis of NPP Neutron Activation Foil Measurement Campaigns

EPJ Web of Conferences, 2016
In this paper, an overview of the Swiss Nuclear Power Plant (NPP) activation methodology is presented and the work towards its validation by in-situ NPP foil irradiation campaigns is outlined.
Volmert Ben, Pantelias Manuel, Mutnuru R.K., Neukaeter Erwin, Bitterli Beat   +4 more
doaj   +1 more source

A comparison of radioactive waste from first generation fusion reactors and fast fission reactors with actinide recycling [PDF]

, 1991
Limitations of the fission fuel resources will presumably mandate the replacement of thermal fission reactors by fast fission reactors that operate on a self-sufficient closed fuel cycle.
Kazimi, M.S., Koch, M.
core   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source