SENSE: Sensitivity encoding for fast MRI

Li Zhang, Peng Lai, Mihaela Pop and Graham A. Wright, Accelerated multicontrast volumetric imaging with isotropic resolution for improved peri‐infarct characterization using parallel imaging, low‐rank and spatially varying edge‐preserving sparse modeling, Magnetic Resonance in …

Sulfane sulfur‐activated actinorhodin production and ...

2020-8-9 · Introduction. Sulfane sulfur, presenting as persulfide (HSSH and RSSH) and polysulfide (HSS n H, S n, RSS n H, RSS n R, n ≥ 2), is a common component found in mammalian cells, (Fukuto et al., 2018) plays important physiological roles in cytoprotection, anti-inflammatory activities and angiogenesis (Lau and Pluth, 2019) and is produced by various enzymes.

Simheuristic-based decision support system for efficiency ...

Run-of-mine ore is usually too large to be useful for construction or metallurgy. Large particles must be reduced to specific sizes to either comply with aggregate sizing regulations, or ...

Mining | Free Full-Text | A Framework for Open-Pit Mine ...

The mining industry is advancing towards a more efficient, less energy-consuming, labor-intensive, and reliable process. In open-pit mining, material haulage costs constitute over 50% of the total mining cost [] veloping continuous mining extraction and transportation systems has become a promising direction for improving productivity and reducing operating costs.

Assessment of emission-source contribution to spatial ...

2021-7-1 · The emission of inhalable particulates (PM 10) from coal comminution processing is detrimental to the air quality.However, limited works have been carried out for the estimation of emission and dispersion of PM 10 from coal crushers and its ancillary operations. In this study, field-based measurements and regulatory dispersion model coupled with Weather Research Forecasting (WRF) …

The Geometrical Model of Vertical Shaft Impact Crusher ...

The Solid Works environment, through the methods of field surveying and mapping of a vertical shaft impact crusher for structural reverse and design,counter rotating subsystem of the spare parts ...

A Hot Melt Thermosetting Phenolic Prepreg and its ...

There is an Open Access version for this licensed article that can be read free of charge and without license restrictions. The content of the Open Access version may differ from that of the licensed version.

Formulations, hemolytic and pharmacokinetic studies on ...

2015-4-3 · 1. Introduction. Saikosaponin a and Saikosaponin d (SSa, SSd, Figure 1) from the prepared radix of Bupleurum chinense DC. or Bupleurum scorzoneri folium W illd [], are two active compounds and have many pharmacological activities, including antipyretic, analgesic, antiviral, anti-inflammatory, antitumour, immunomodulatory, liver damage-resistant, and liver fibrosis-resistant properties [].

Journal of Physics: Conference Series, Volume 1948, 2021 ...

The previous First International Conference on Internet of Things, Artificial Intelligence and Mechanical Automation (IoTAIMA 2020) was successfully taken place on July 10-12, 2020 in Hangzhou, China. All accepted papers has been published by Journal of Physics: Conference Series and has been indexed by EI Compendex and Scopus.

Dynamic Simulation and Optimization of a Urea Granulation ...

2021-8-1 · The crusher was described by the model given by Austin et al. [Austin L.G., Van Orden D.R., Perez J.W. A Preliminary Analysis of Smooth Roll Crushers, International Journal of Mineral Processing ...

Loading rate effects on cracking behavior of flaw ...

2013-1-15 · Zhao CB, Hobbs BE, Ord A, Hornby P, Peng SL, Liu LM (2007) Particle simulation of spontaneous crack generation problems in large-scale quasi-static systems. Int J Numer Methods Eng 69(11):2302–2329 . Google Scholar Zhou XP, Qian QH, Yang HQ (2010) Effect of loading rate on fracture characteristics of rock.

A geochemical link between plume head and tail volcanism ...

The choice of filter ranges has a direct impact on the calculated 187 Os/ 188 Os and its precision, but our rejection criteria are relatively inclusive. A York-type regression of our filtered data yields an isochron initial 187 Os/ 188 Os of 0.1336 ± 0.0031 ( n = 21), identical, within uncertainties, to the Réunion end member (0.1324 ± 0 ...

Noise vulnerability of stone mining and crushing in Dwarka ...

2021-1-19 · The present paper has intended to explore the noise level and vulnerability to noise produced in the stone mining and crushing area and the surroundings in the heavily stressed stone mining and crushing area of Middle catchment of Dwarka river basin of Eastern India. Field-based noise recording has been done at different times in every recorded days. Fuzzy logic-based weighting and …

Bonded-particle model calibration using response surface ...

2017-6-1 · The bonded-particle model (BPM) is commonly used in numerical analysis of the mechanical behavior of rock samples. Constructing a BPM model requires specification of a number of microstructural parameters, including the parallel-bond tensile strength, parallel-bond cohesion strength, parallel-bond effective modulus, parallel-bond friction angle, and parallel-bond stiffness ratio.

Evidence Archive

A summary of where Chinese sailors and concubines of Zheng He''s fleets landed in the Americas 1 Haida – via the Aleutians, then landed Queen Charlotte Islands. 2 Gallinomero of Healdsburg – Trans-Pacific, then sailed up the Klamath River. 3 Navajo of Tiguex …. Read more.

Microbial chemolithotrophy mediates oxidative weathering ...

2019-12-26 · We utilized the Luquillo Critical Zone Observatory (LCZO) in Puerto Rico to test the hypothesis that mineral-derived Fe(II) within the granitic bedrock at LCZO is capable of supporting microbial Fe(II)-based chemolithotrophy and that the resultant redox-driven mineralogical transformations contribute to bedrock weathering. While this hypothesis had been postulated based on theoretical ...

Novel pH-sensitive and biodegradable micelles for the ...

Abstract. pH-sensitive micelles are desirable for co-drug delivery in cancer chemotherapy. Herein, a novel, very pH-sensitive and biodegradable citric acid grafted poly maleate-block-poly lactic-co-glycolic acid was synthesized and assembled as micelles via ultrasonication.The engineered homogeneous nanomicelles were used for the first time for doxorubicin and conferone combination ...

Exploring the combined effect of total ammonia nitrogen ...

Ammonia inhibition is the most challenging issue in the anaerobic digestion (AD) of nitrogen-rich substrates. Total ammonia nitrogen (TAN) concentration, temperature and pH are the main operational parameters affecting the chemical equilibrium between free ammonium nitrogen (NH 3; FAN) and ammonium ions (NH 4 +).However, it is still unclear how these parameters together affect digestion ...

Modeling and simulation of cone crushers | Request PDF

More recent works on cone crusher modeling have been carried out by Evertsson and co-workers in Evertsson (1998, 1999, 2000 where also closed-loop control have been considered, see …

Radiogenic Sr and Stable C and O Isotopes Across ...

The Precambrian-Cambrian (PЄ-Є) transition is a unique period in Earth''s history known for the "Cambrian Explosion." Here we present a continuous radiogenic and stable isotope (87 Sr/ 86 Sr, δ 13 C VPDB, carb, and δ 18 O VPDB, carb) and elemental (including rare earth elements) record across the PЄ-Є transition, preserved in phosphatic and carbonate shallow-water deposits from two ...

Simulation of particle flows and breakage in crushers ...

It was used to qualitatively model impact crushers such as the VSI (vertical shaft impactor) and compressive crushers such as a jaw crusher in Cleary (2009), cone crushers and twin roll crushers ...

economic impacts of open pit mining

The environmental impact of openpit mining is a great concern to Barlow and others According to a September article by The State''s Sammy Fretwell, Haile officials pledged to run a safe operation when the mine was reopened, but state regulators slapped the mine with $11,200 in fines after discovering the release of thallium over the legal

A discrete element method-based approach to predict the ...

2017-8-5 · @article{osti_1390569, title = {A discrete element method-based approach to predict the breakage of coal}, author = {Gupta, Varun and Sun, Xin and Xu, Wei and Sarv, Hamid and Farzan, Hamid}, abstractNote = {Pulverization is an essential pre-combustion technique employed for solid fuels, such as coal, to reduce particle sizes. Smaller particles ensure rapid and complete combustion, …

Conveyor belts text book

Conveyor belts text book Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Conveyor belts text book, quarry, aggregate, and different kinds of minerals.

Laboratory characterization of the porosity and ...

2017-9-1 · To test the impact that this would have on the interpretation of pressure transient tests, an Eclipse™ simulation has been run assuming that the sample has the same particle-size and permeability as the smallest particle-size shown for sample SH-12 in Fig. 15 (i.e. 0.4 mm and 2.1 nD). The pressure transient obtained from this simulation has ...

Surge Crusher Rc Catamaran Gas-Crusher

Surge Crusher Off Shore. Surge crusher rc amaran gas dverebratislava surge crusher boat surge crusher brushless catamaran v2 730mm the surge crusher brushless catamaran is a sport scale version of an off shore racing fiberglass hull surge crusher kwaterylondynjoysway surge crusher rtr brushless rc boat 24ghz inspired by the fastest.

EconPapers: Mathematical Problems in Engineering

2021-8-9 · Xin-Yu Tu, Bo Zhang, Yu-Peng Jin, Guo-Jian Zou, Jian-Guo Pan and Mao-Zhen Li The Impact of Icing on the Airfoil on the Lift-Drag Characteristics and Maneuverability Characteristics pp. 1-16 Kang Wang, Yuan Xue, Hongfeng Tian, Miaosen Wang and Xiaolong Wang An Adaptive Control Combination Forecasting Method for Time Series Data pp. 1-16

Optimizing the alkaline oxidation pretreatment of a ...

2018-9-28 · This study investigates the alkaline oxidation pretreatment process of Zarshuran refractory gold ore. Taguchi method-orthogonal array design (OAD) is applied to evaluate and optimize the influence of five main factors including solution pH, aeration rate, …

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