Final Environmental Impact Statement Related To Reclamation Of The Uranium Mill Tailings At The Atlas Site, Moab, Utah,
Utah State University
Final Environmental Impact Statement Related To Reclamation Of The Uranium Mill Tailings At The Atlas Site, Moab, Utah
All U.S. Government Documents (Utah Regional Depository)
This Final Environmental Impact Statement (FEIS) has been prepared by the Nuclear Regulatory Commission (NRC), Office of Nuclear Material Safety and Safeguards, to address potential environmental impacts associated with a request by Atlas Corporation to amend its existing NRC License no. SUA-917 to reclaim in place an existing uranium mill tailings pile near Moab, Utah. The proposed reclamation would allow Atlas to (1) reclaim the tailings pile for permanent disposal and long-term custodial care by a government agency in its current location on the Moab site, and (2) prepare the 162-ha (400-acre) Moab site for closure. the FEIS describes and …
Development Of Nanostructured Graphene/Conducting Polymer Composite Materials For Supercapacitor Applications,
University of South Florida
Development Of Nanostructured Graphene/Conducting Polymer Composite Materials For Supercapacitor Applications, Punya Basnayaka
USF Tampa Graduate Theses and Dissertations
The developments in mobile/portable electronics and alternative energy vehicles prompted engineers and researchers to develop electrochemical energy storage devices called supercapacitors, as the third generation type capacitors. Most of the research and development on supercapacitors focus on electrode materials, electrolytes and hybridization. Some attempts have been directed towards increasing the energy density by employing electroactive materials, such as metal oxides and conducting polymers (CPs). However, the high cost and toxicity of applicable metal oxides and poor long term stability of CPs paved the way to alternative electrode materials. The electroactive materials with carbon particles in composites have been used substantially …
A Method For Optimizing The Digital Twin Model Of The Mechanical-Electro-Hydraulic System Of Cantilever Tunnel Boring Machines,
China Coal Technology and Engineering Group (CCTEG)
A Method For Optimizing The Digital Twin Model Of The Mechanical-Electro-Hydraulic System Of Cantilever Tunnel Boring Machines, Wang Yan
Coal Geology & Exploration
Objective Cantilever roadheaders represent roadway tunnelling equipment that integrates the deep coupling of mechanical, electrical, and hydraulic systems, and their control accuracy directly determines the forming quality of roadways.Methods Cantilever roadheaders involve nonlinear mechanical motion, hydraulic control, and cutting load, rendering it challenging to establish accurate control models. Using the philosophy of digital twin modeling, this study developed a method for optimizing the digital twin model of the mechanical-electro-hydraulic system of cantilever roadheaders based on virtual-physical consistency evaluation. Specifically, a digital twin model of the mechanical-electro-hydraulic system was developed using multi-domain co-simulation between AMESim and Simulink. This model allows …
Sand Tank Experiments On The Seepage And Water Pressure Distribution During Single-Well Dewatering At The Bottom Of A Confined Aquifer,
China Coal Technology and Engineering Group (CCTEG)
Sand Tank Experiments On The Seepage And Water Pressure Distribution During Single-Well Dewatering At The Bottom Of A Confined Aquifer, Wang Wenxue
Coal Geology & Exploration
Background Depressurization through dewatering using inclined wells arranged at the aquifer bottom represents a crucial technical approach to the prevention and control of water-sand inrush disasters during coal mining beneath aquifers. However, the mechanisms underlying seepage-pressure interactions and water-preserved depressurization remain poorly understood. Methods Based on the water-yield properties of confined aquifers and the distribution characteristics of inclined wells for dewatering, this study developed a fan-shaped sand tank experimental system for simulating dewatering and seepage from confined aquifers. Using the experimental system, this study carried out seepage experiments using a partially penetrating well at the bottom of a confined aquifer …
Present Situation And Prospects Of Coal-Derived Gas Exploration And Development In Shanxi Province,
China Coal Technology and Engineering Group (CCTEG)
Present Situation And Prospects Of Coal-Derived Gas Exploration And Development In Shanxi Province, Li Guofu, Gong Jieli
Coal Geology & Exploration
Coal-derived gas includes coalbed methane(CBM), shale gas and tight sandstone gas. CBM development is of practical significance to ensure coal mine safety, increase clean energy supply, improve regional energy consumption structure, and promote the clear water and blue sky program, which is more in line with the national strategic requirements of developing green energy, achieving carbon neutrality and peaking carbon dioxide emissions. Shale gas and tight sandstone gas are of great significance to improve China’s energy structure and achieve the goal of carbon neutrality and peaking carbon dioxide emissions. Based on the comprehensive analysis of the beneficial exploration and successful …
Production Of Biodiesel From Soybean Oil Using Supercritical Methanol,
University of South Florida
Production Of Biodiesel From Soybean Oil Using Supercritical Methanol
Graduate Theses and Dissertations
The slow yet steady expansion of the global economies, has led to an increased demand for energy and fuel, which would eventually lead to shortage of fossil fuel resources in the near future. Consequently, researchers have been investigating other fuels like biodiesel. Biodiesel refers to the monoalkyl esters which can be derived from a wide range of sources like vegetable oils, animal fats, algae lipids and waste greases. Currently, biodiesel is largely produced by the conventional route, using an acid, a base or an enzyme catalyst. Drawbacks associated with this route result in higher production costs and longer processing times. …
A Method For 3d Model Reconstruction Of Large-Diameter Rescue Wells Based On Multiple Cameras,
China Coal Technology and Engineering Group (CCTEG)
A Method For 3d Model Reconstruction Of Large-Diameter Rescue Wells Based On Multiple Cameras, Gu Hairong, Yang Wenjuan
Coal Geology & Exploration
Objective Surface drilling for mine rescue represents a critical technique in the emergency rescue system against mine disasters. To accurately assess the passability of large-diameter rescue wells during rescue operations, it is essential to build precise 3D models of the rescue wells for rapid reconstruction of rescue scenarios. Methods Based on the theory of multi-camera-based 3D model reconstruction, this study investigated the method of arranging four Intel D435i cameras within a large-diameter rescue well. Accordingly, a multi-camera-based 3D model reconstruction system for a large-diameter rescue well was established, involving the joint calibration of the camera array and the selection of …
Test Of Mechanical Properties Of Limestone Under Hydraulic Pressure-Stress Coupling,
China Coal Technology and Engineering Group (CCTEG)
Test Of Mechanical Properties Of Limestone Under Hydraulic Pressure-Stress Coupling
Coal Geology & Exploration
To study the mechanical properties of limestone with water-rich saturated circumstance under water pressure-stress coupling, compression failure tests of limestone samples with different water pressure were carried out by using a self-developed permeability test device, the device can realize uniaxial compression test. Then, the stress-strain characteristics of limestone, the effect of hydraulic pressure on uniaxial compressive strength, the elastic modulus and the deformation modulus, and the correlation between breaking characteristics and hydraulic pressure were tested. The results show that the increased hydraulic pressure has a significant influence on the stress-strain curve and strength characteristics. With the increase of hydraulic strength, …
Bleeding Air From Diesel Fuel Lines & Filters,
Utah State University
Bleeding Air From Diesel Fuel Lines & Filters
All Current Publications
No abstract provided.
Experimental Study On Nondestructive Testing Of Anchor Cable In Pumped Storage Power Station,
China Coal Technology and Engineering Group (CCTEG)
Experimental Study On Nondestructive Testing Of Anchor Cable In Pumped Storage Power Station, Yan Liangping, Zhou Liming
Coal Geology & Exploration
In order to demonstrate the effect of elastic wave reflection method, the nondestructive testing test of anchor cables was carried out at the bank slope of Fukang Pumped Storage Power Station in Xinjiang. On the basis of the basic theory of elastic wave reflection method, the anchor cable sensor is embedded, and the data acquisition, signal excitation position and wave velocity of anchor body in the process of nondestructive testing of anchor cable are systematically studied. The following results are obtained: When the receiving sensor position is fixed and the excitation part is the steel strand where the receiving sensor …
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