Results 31 to 40 of about 1,005,462 (289)

Study of kinetic and adsorption isotherm of ibuprofen on mcm-41 synthesized with rice husk [PDF]

Pharmaciana
Rice husk is one of the abundant wastes, especially in agricultural countries. Rice husk waste has a silica content of 95.80%, where the silica content can be utilized to make an adsorbent. One of the adsorbents that can be made is Mobil Composition of
Olyvia Azzahra Putri Hartono, Frida Octavia Purnomo, Dyah Ayuwati Waluyo, Tunas Alam, Mohammad Jihad Madiabu   +4 more
doaj   +1 more source

Kinetic Study of Curcumin on Modal Fabric [PDF]

Tekstilec, 2018
A kinetic study of curcumin on modal fabric was carried out using an initial dye concentration of 1 g/L at three different temperatures, 70 °C, 85 °C and 100 °C, at pH 7 and an material to liquor ratio of 1:20.
Abu Naser Md. Ahsanul Haque , Manwar Hussain , Shamima Akter Smriti , Fahmida Siddiqa , Nawshin Farzana   +4 more
doaj   +1 more source

Improved shock-capturing of Jameson's scheme for the Euler equations [PDF]

, 1992
It is known that Jameson's scheme is a pseudo-second-order-accurate scheme for solving discrete conservation laws. The scheme contains a non-linear artificial dissipative flux which is designed to capture shocks.
Brandsma, Brandsma, Courant, Dick, Harten, Jameson, Koren, Lax, Martinelli, Osher, Radespiel, Rizzi, Roe, van den Berg, van der Burg, Zierep   +15 more
core   +4 more sources

Isotherm and Kinetics of Fe(II) Adsorption onto Chitosan in a Batch Process [PDF]

Iranica Journal of Energy and Environment, 2011
In this study removal of Fe(II) by chitosan adsorbent was experimentally investigated in a batch system. The adsorbent dose and pH of the metal solution was fixed at 0.15 g and 4, respectively.
Hamideh Radnia, Ali Asghar Ghoreyshi, Habibollah Younesi   +2 more
doaj  

Biosorptive removal of cobalt (II) ion from wastewater using pomegranate peel activated carbon as biosorbent [PDF]

Journal of the Serbian Chemical Society
Cobalt is used to link the components during integrated circuits (ICs) fabrication. Cobalt ion is common in chemical mechanical planarization (CMP) spent slurry.
Sushma, Keshav Amit, Ramachandran Manivannan   +2 more
doaj   +1 more source

Image Encryption Using Elliptic Curves and Rossby/Drift Wave Triads

, 2020
We propose an image encryption scheme based on quasi-resonant Rossby/drift wave triads (related to elliptic surfaces) and Mordell elliptic curves (MECs).
Bustamante, Miguel D., Hayat, Umar, Ullah, Ikram   +2 more
core   +1 more source

Dynamic Approach to Weak First Order Phase Transitions

, 2000
A short-time dynamic approach to weak first order phase transitions is proposed. Taking the 2-dimensional Potts models as examples, from short-time behaviour of non-equilibrium relaxational processes starting from high temperature and zero temperature ...
A. M. Ferrenberg, A. M. Ferrenberg, A. M. Ferrenberg, B. Zheng, B. Zheng, B. Zheng, C. Borgs, D. A. Huse, D. Stauffer, H. J. Luo, H. K. Janssen, J. Lee, J. Lee, K. Binder, K. Binder, K. Humayun, K. Oerding, K. Oerding, L. A. Fernández, L. Schülke, L. Schülke, P. de Gennes, P. Grassberger, P. M. C. de Oliveira, V. Privman, W. Janke, Z. B. Li, Z. B. Li   +27 more
core   +2 more sources

Second-Order Pseudo-Hermitian Spin-1/2 Bosons

Universe
The canonical quantization of a field theory for spin-1/2 massive bosons that satisfy the Klein–Gordon equation is presented. The breakdown of the usual spin–statistics connection is due to the redefinition of the dual field, rendering the theory pseudo ...
Armando de la C. Rangel-Pantoja, I. Díaz-Saldaña, Carlos A. Vaquera-Araujo   +2 more
doaj   +1 more source

Measurement of Photon Statistics with Live Photoreceptor Cells

, 2013
We analyzed the electrophysiological response of an isolated rod photoreceptor of Xenopus laevis under stimulation by coherent and pseudo-thermal light sources. Using the suction electrode technique for single cell recordings and a fiber optics setup for
C. Michael Jones, D. A. Baylor, D. A. Baylor, D. N. Klyshko, Dmitri Bessarab, J. E. Dowling, L. Mandel, Leonid A. Krivitsky, Mei Fun Cheng, Nigel Sim   +9 more
core   +1 more source

Well-posed initial-boundary value problem for the harmonic Einstein equations using energy estimates [PDF]

, 2007
In recent work, we used pseudo-differential theory to establish conditions that the initial-boundary value problem for second order systems of wave equations be strongly well-posed in a generalized sense. The applications included the harmonic version of
Kreiss, H. -O., Reula, O., Sarbach, O., Winicour, J.   +3 more
core   +2 more sources