1-20 of 44
Keywords: equation
Close
Sort by
Proceedings Papers

Paper presented at the Eleventh Ocean Mining and Gas Hydrates Symposium, June 21–27, 2015
Paper Number: ISOPE-M-15-241
... Abstract Seafloor photographs of polymetallic nodule taken by deep-sea camera are used for the estimation of the abundance. Typically, empirical equations are used to calculate abundances. However, to date, shape of the size distribution, for example, the symmetry or skewness to characterize...
Proceedings Papers

Paper presented at the Eleventh Ocean Mining and Gas Hydrates Symposium, June 21–27, 2015
Paper Number: ISOPE-M-15-029
... Abstract According to the equation of continuity and the equation of motion, a formula of water-hammer pressure in lifting pipe is derived. The paper analyzes the water-hammer pressure in the lifting pump's outlet under different operating conditions. The simulated calculation results show...
Proceedings Papers

Paper presented at the Eleventh Ocean Mining and Gas Hydrates Symposium, June 21–27, 2015
Paper Number: ISOPE-M-15-588
...). Many scholars (Qian and Wan, 1983; Zhang et al., 1989; Ni et al., 1991) believe that the settling rate of settling from stillness to maximum is a rapid process with exponential approach. Some scientists (Huang et al., 2000; Liu and Huang, 1997; Wu et al., 2000) analyzed the motion equation of settling...
Proceedings Papers

Paper presented at the Eleventh Ocean Mining and Gas Hydrates Symposium, June 21–27, 2015
Paper Number: ISOPE-M-15-558
... water flows efficiently. Three-dimensional cube structure is used in the simulation. The particle distribution function f is expressed as following discrete equation of Boltzmann equation. eq iiii i fff t f 1c (1) where c is the velocity at the point x and the time t. The equilibrium distribution...
Proceedings Papers

Paper presented at the Tenth ISOPE Ocean Mining and Gas Hydrates Symposium, September 22–26, 2013
Paper Number: ISOPE-M-13-055
... vehicle system analysis, subsystems can be synthesized to the base body with effective matrix and vector from the virtual massless reference body of each subsystem. Using these effective matrix and vector of subsystems, equations of motion with base body can be solved independently. After then equations...
Proceedings Papers

Paper presented at the Tenth ISOPE Ocean Mining and Gas Hydrates Symposium, September 22–26, 2013
Paper Number: ISOPE-M-13-069
... software. The results from the tests were useful in conducting subsea tests on underwater mining machine at 1032 m depth. clear water slurry experimental study bend angle nodule equation artificial nodule frequency analysis frequency flow rate pressure drop upstream oil & gas hose...
Proceedings Papers

Paper presented at the Tenth ISOPE Ocean Mining and Gas Hydrates Symposium, September 22–26, 2013
Paper Number: ISOPE-M-13-088
... of adsorption when adsorption process reaches equilibrium. Experiment data derived from the adsorption isotherms curve commonly can be described by Langmuir equation: 1e e e m L m C C q q K q = + or Freundlich equation: 1log log log ee F q C K n = + Table 7 Trial data of adsorption quantity in various pH PH 6 7...
Proceedings Papers

Paper presented at the Ninth ISOPE Ocean Mining Symposium, June 19–24, 2011
Paper Number: ISOPE-M-11-021
... with a height of 30 meters, a return flow pipe, a pipe for pressure regulation and a 0.9 m3 water tank for buffering. production control artificial nodule uniform particle pipe production monitoring diameter lifting pipe equation production logging inner diameter particle concentration...
Proceedings Papers

Paper presented at the Ninth ISOPE Ocean Mining Symposium, June 19–24, 2011
Paper Number: ISOPE-M-11-023
... time system upstream oil & gas artificial intelligence hydraulic cylinder displacement equation attitude signal platform Hardware-in-the-loop Simulation System and Its Visual Monitoring of Heave Compensation Hao Zheng 1,2, Shaojun Liu1,2, Ning Yang2,1 1. College of Mechanical...
Proceedings Papers

Paper presented at the Eighth ISOPE Ocean Mining Symposium, September 20–24, 2009
Paper Number: ISOPE-M-09-012
... adjusting system. In the 1970s, Glomar Explorer was built in USA (Chung, 2009). displacement platform schematic diagram hydraulic cylinder heave compensation system proportional valve heave compensation mathematical model equation metals & mining hardware-in-the-loop simulation system...
Proceedings Papers

Paper presented at the Eighth ISOPE Ocean Mining Symposium, September 20–24, 2009
Paper Number: ISOPE-M-09-020
... as lifting pump with required high capacity and head simultaneously. upstream oil & gas solid-liquid flow yoon proceedings artificial lift system solid-liquid mixture vortex flow equation lifting pump particle continuity equation impeller pressure distribution modeling streamline...
Proceedings Papers

Paper presented at the Eighth ISOPE Ocean Mining Symposium, September 20–24, 2009
Paper Number: ISOPE-M-09-016
... mass yield to a series of differential equations, and then these equations are solved using different numerical schemes. Huang (1994) applied an assumption of linearized elastic tow cable and presented a complete three-dimensional motion model. His analysis indicated the possibility of high frequent...
Proceedings Papers

Paper presented at the Eighth ISOPE Ocean Mining Symposium, September 20–24, 2009
Paper Number: ISOPE-M-09-038
... and density). The first model is Effective Medium Model (EMM; Dvorkin et al., 1999) which assumes that the elastic moduli lie between the moduli of dry sediment at the critical porosity and zero porosity. The fluid-saturated moduli are estimated using Gassmann's equation. The main limitation of this model...
Proceedings Papers

Paper presented at the Seventh ISOPE Ocean Mining Symposium, July 1–6, 2007
Paper Number: ISOPE-M-07-027
..., Poland ABSTRACT The paper presents results of experimental measurements devoted to movement of single spherical particles in suspensions of different concentrations. Obtained results have been compared with estimations based on equations for calculation of fall velocities of spherical particles...
Proceedings Papers

Paper presented at the Seventh ISOPE Ocean Mining Symposium, July 1–6, 2007
Paper Number: ISOPE-M-07-028
... Wroc aw, Poland ABSTRACT This paper presents a theoretical model of two-phase flow of mixtures of water and solids in vertical pipelines. This model includes several factors, which can be analytically interpreted. Simplified equations for approximate calculations have been also derived. Using...
Proceedings Papers

Paper presented at the Seventh ISOPE Ocean Mining Symposium, July 1–6, 2007
Paper Number: ISOPE-M-07-004
... the dispersed phase volume fraction is high (Patankar and Joseph, 2001). In the E-E approach, both the fluid phase and the solid phase are treated as a continuum. In this approach, the definition of the constitutive equations is the most significant issue to describe the solid phase as a continuum. On the other...
Proceedings Papers

Paper presented at the Sixth ISOPE Ocean Mining Symposium, October 9–13, 2005
Paper Number: ISOPE-M-05-026
... tracked vehicle operating on extremely soft soil of deep-seafloor. The vehicle is assumed as a rigid-body with 6-dof. The orientation of vehicle is defined by four Euler parameters. To solve the motion equations of vehicle, Newmark numerical integrator is used in incremental-iterative algorithm...

Product(s) added to cart

Close Modal