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The pulsating slurry high gradient magnetic separator (PHGMS) has been widely used for the separation of feebly magnetic materials. As the main competing force, pulsating slurry effectively ...Web
High gradient magnetic separation (HGMS) has the advantage of high recovery of fine weakly magnetic particles (Oberteuffer, 1973, Oberteuffer, 1974; Svoboda, 1987). ... Pulsation curves strengthen the high gradient magnetic separation process: Experimental study and simulation explanation. Minerals Engineering, Volume 182, …Web
The discovery of pulsation modes or an entire spectrum of low-frequency gravity waves in these stars allow us to map the evolution of hot massive stars towards the ends of their lives ...Web
While there are many RF pulse shapes used in MRI, it is worth mentioning here the sinc pulse, Gaussian pulse, and rectangular pulse. Gaussian and sinc pulses are often used …Web
Stage D1: symptomatic, severe, high gradient. Stage D2: symptomatic, severe, low flow, low gradient. Due to LV dysfunction (LVEF <50), resting V max ... water hammer or Corrigan's pulse (bounding, full radial pulse …Web
Bench-scale tests showed good separation of vivianite from digested sewage sludge and that a pulsation force is crucial for obtaining a concentrate with a high P grade. A pilot-scale magnetic separator ... The SLon Vertically Pulsating High Gradient Magnetic Separator (VPHGMS) is widely used in the mining industry for ore concentration. ...Web
The use of pulsating slurry has been found to be effective in overcoming matrix blockage and improving separation selectivity in high gradient magneti…Web
The gradient value of the vortex is − 485.1 Pa/m (not shown in the figure due to the scale of coordinate axis). ... The pressure pulsation of open wind tunnel is a high-intensity vibration ...Web
excellent flow and gradient perfor-mance, and minimal residual pulsation for all common eluents at any settable flow rate— independent of system pressure. • Don't waste additional bench space running more complex applications— use the Dual Low-Pressure Gradient P680 Pump (incorporates two independent ternary gradient pumps).Web
A gradient of a fluorescent dye was generated under the low flow control at 1–10 μl/h of a simple syringe pump equipped with a pulsation damper that was comparable to a pulseless microfluidic pump. Concentration gradients were formed in 1 h and stable from 2 h out to 5 days and consuming less than 1.0 ml of solution.Web
The use of pulsating slurry has been found to be effective in overcoming matrix blockage and improving separation selectivity in high gradient magnetic separators (HGMS). The velocity of the pulsating slurry is regulated by a sinusoidal cycle function, which causes …Web
The magnetic separator used for this study, as illustrated in Fig. 1, is designed and manufactured by our group to conduct the theoretical research of PHGMS.It consists of the feeding system, a region of a high and approximately uniform magnetic field (0–0.8 T), ferromagnetic wires that distort the field and produce large local gradients, …Web
High gradient magnetic separator is a new type of high intensity magnetic separator, which has strong ability to capture fine and weak magnetic particles, developed on the basis of ordinary high intensity magnetic separator. ... [19] Li Y X and Li B 2001 Research and Practice of DMG type electromagnetic pulsation High gradient magnetic ...Web
Clinical manifestations and diagnosis of low gradient severe aortic stenosis; Clinical utility of cardiovascular magnetic resonance imaging; Determining the etiology and severity of heart failure or cardiomyopathy; Echocardiographic evaluation of the aortic valve; Examination of the arterial pulse; Examination of the precordial pulsationWeb
High gradient magnetic separator is a new type of high intensity magnetic separator, which has strong ability to capture fine and weak magnetic particles, developed on the basis of …Web
Thus pulsed-heating is the first motivation for research into new structure concepts. There are four research directions one might pursue to lower cyclic stress limits: disposable …Web
The slightly lower gradient of the falling pulse slope can be explained by a larger volume of the exhaust tract between the outlet valves and the turbine volute inlet at the pulsation generator. The pressure downstream of the turbine is controlled by an exhaust backpressure valve, consequently, the turbine pressure ratio can be set very ...Web
Pulsating high gradient magnetic separation (PHGMS) has been widely used for separating magnetic minerals in the past decades. In practice, magnetic field and flow …Web
High gradient magnetic separation (HGMS) is widely used to separate feebly magnetic materials. A dynamic buildup equation R4=Et+1 has been built to reflect the change of buildup radius with time ...Web
When the pump system reverses pumping, there is a large amount of pulsation in the low- and high-frequency regions of the pressure pulsation signal, which is very likely to affect the safe and ...Web
The opposing flushing and pulsation help to prevent matrix clogging, and the pulsation helps to purify the magnetic product. These measures guarantee that SLon magnetic separators offer the advantages of higher grade and higher recovery of the magnetic product and more flexibility. ... In comparison, a conventional 2 T high-gradient separator ...Web
Pulsation curves strengthen the high gradient magnetic separation process Ⅱ: Consideration of separation performance. 2024, Minerals Engineering. Show abstract. The use of pulsating slurry has been found to be effective in overcoming matrix blockage and improving separation selectivity in high gradient magnetic separators (HGMS). The …Web
The parallel dual plunger design provides the utmost in gradient accuracy and repeatability for UHPLC separations up to 105 MPa (1050 bar.) ... construction for low pulsation and stable baseline. Flow rate range of 0.1 uL/min to 10 µL/min with accuracy of ± 1% (whichever is larger), and precision < 0.06% or 0.02 min SD (whichever is larger ...Web
Vertical ring pulsating high gradient is a new type of magnetic separator equipment, for fine-grained weak magnetic minerals who have a strong ability to capture, mostly used for fine-grained iron ...Web
High gradient magnetic separation (HGMS) is widely used to separate feebly magnetic materials. A dynamic buildup equation R4=Et+1 has been built to reflect the change of buildup radius with time ...Web
The pulsating slurry high gradient magnetic separator (PHGMS) has been widely used for the separation of feebly magnetic materials. As the main competing …Web
As shown in Fig. 1, the SLon100 periodic pulsation high gradient magnetic separator used for investigation mainly consisted of magnetic poles, energizing coils, pulsating mechanism, matrix, etc. Equipment appearance parameters are shown in Table 1.The main operating parameters include magnetic induction strength, slurry flow rate, …Web
@article{Hu2022PulsationCS, title={Pulsation curves strengthen the high gradient magnetic separation process: Experimental study and simulation explanation}, …Web
High gradient magnetic separation (HGMS) is widely used to separate feebly magnetic materials. ... At the same time with 660 r/min pulsation, the corresponding relative accumulation areas decrease by 0.43, 1.12, and 2.16, respectively, indicating that the influence of pulsation frequency is slight at the initial growth stage, but with the ...Web
The researches have determined that acceleration can be the main factor of dispersion in a reciprocating pulsation, pulsation machine with a vibrating rotor, and valve homogenizer. The factor which connects emulsion flow acceleration to dispersion is the homogenization ratio. ... (high gradient of flow). But all these factors can be unified ...Web
In contrast, a high or wide pulse pressure is common in healthy people following strenuous exercise, when their resting pulse pressure of 30–40 mm Hg may increase temporarily to 100 mm Hg as stroke volume increases. A persistently high pulse pressure at or above 100 mm Hg may indicate excessive resistance in the arteries and can be caused by ...Web
The fMRI data were obtained to process brain BOLD and CSF pulsation signals. Both resting-state fMRI (rs-fMRI) and task-based fMRI were performed to compare the result from our method with the known CSF physiology (Piechnik et al., 2009; Jin and Kim, 2010; Tarumi et al., 2021; Williams et al., 2021).We acquired EPI images and PC …Web
OBJECTIVE. The purpose of this article is to review the normal appearance of CSF, flow physics in relation to CSF flow dynamics, and commonly encountered appearances and artifacts of CSF due to superimposed flow effects. CONCLUSION. Normal CSF has inherent MRI properties of low signal intensity on T1-weighted sequences and high signal …Web
Our goal is to ensure low pulsation, gradient formation accuracy, and retention time reproducibility with our parallel dual plunger design. One LC-40BX3 can deliver two solvents for reliable high-pressure gradient separation. ... The ultra-high pressure capacity (up to 130 MPa/1300 bar) allows the of sub-2μm particle columns for high ...Web
One-dimensional, unsteady gaseous detonation propagation in a non-homogeneous medium is investigated numerically using the reactive, compressible Navier–Stokes equations with detailed chemistry. The effect of concentration inhomogeneity on the pulsating mode is modeled by a sinusoidal distribution of H2 mole fraction in a …Web
