01538nas a2200229   4500008004100000022001400041245007300055210006900128260007300197300001200270490000800282520072400290653001501014653002401029653002801053653003901081100002301120700002401143700001801167700001901185856010401204       2007                        eng d  a0039-602800aBlocking effects in irreversible adsorption of linear macromolecules0 aBlocking effects in irreversible adsorption of linear macromolec  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a274-2790 v6013 a<p>{A new variant of random sequential adsorption (RSA), namely random sequential ballistic adsorption (RSBA), is proposed to explore the possible role of blocking effects in the adsorption dynamics of ballistically arriving objects. These objects upon adsorption can protrude outside the substrate and in turn can obstruct and hence reject the adsorption of newly arriving objects. Adsorption of linear macromolecules (modeled as infinitesimally thin needles), on a two-dimensional continuum substrate is studied using RSBA model. It is shown analytically that in late time regime, the number n(t) of adsorbed objects at time t follows a power law n(t) similar to t(alpha), as in RSA, but with a different exponent</p>10aAdsorption10aadsorption kinetics10aMonte Carlo simulations10arandom sequential adsorption (RSA)1 aShelke, Pradip, B.1 aBanpurkar, Arun, G.1 aOgale, S., B.1 aLimaye, A., V.  uhttps://library.ncl.res.in/content/blocking-effects-irreversible-adsorption-linear-macromolecules-002573nas a2200229   4500008004100000022001400041245013200055210006900187260007300256300001400329490000800343520166100351653001502012653002402027653002802051653003902079100002302118700002402141700002902165700001902194856013002213       2007                        eng d  a0039-602800aImpact of orientational distribution of adsorbing objects on dynamics of Random Sequential Ballistic Adsorption (RSBA) dynamics0 aImpact of orientational distribution of adsorbing objects on dyn  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcNOV  a5010-50150 v6013 a<p>Recently, by proposing a new variant of Random Sequential Adsorption (RSA) namely Random Sequential Ballistic Adsorption (RSBA) model [Pradip B. Shelke, A.G. Banpurkar, S.B. Ogale, A.V. Limaye, Surf. Sci. 601 (2007) 274], we addressed the issue of adsorption dynamics of extended objects where the objects, upon adsorption, protrude outside the substrate. This study brought out the role of the arriving trajectory in the adsorption dynamics. In the present work the possible role of the orientational distribution of the arriving objects in the RSBA dynamics is investigated. The dynamics of RSBA of needles (line segments) is studied analytically and by computer simulation for different types of theta distributions of arriving needles, theta being the angle made by the arriving needle with normal to the substrate. Three types of theta distributions, namely a uniform distribution over the range (0, pi/2), a Gaussian distribution and a distribution uniform over the solid angle, are considered. Analytical treatment establishes that in all the three cases, the number n(t) of adsorbed objects at a late time t follows a power law n(t) similar to t(alpha), and the exponent a depends on the specifics of the theta distribution. In general, for distribution f(theta) proportional to theta(beta), for theta -&gt; 0, alpha is found to be 2/(beta + 3). The simulation results are in excellent agreement with the analytical findings and together they reveal that the orientational distribution of arriving objects has significant consequences for the Random Sequential Ballistic Adsorption (RSBA) process. (C) 2007 Elsevier B.V. All rights reserved.</p>10aAdsorption10aadsorption kinetics10aMonte Carlo simulations10arandom sequential adsorption (RSA)1 aShelke, Pradip, B.1 aBanpurkar, Arun, G.1 aOgale, Satishchandra, B.1 aLimaye, A., V.  uhttps://library.ncl.res.in/content/impact-orientational-distribution-adsorbing-objects-dynamics-random-sequential-ballistic-001274nas a2200181   4500008004100000022001400041245009000055210006900145260007900214300001100293490000700304520058300311100002300894700001800917700002100935700001900956856011700975       2008                        eng d  a1539-375500aPeculiarities of the adsorption kinetics of mixed convex plus concave contour objects0 aPeculiarities of the adsorption kinetics of mixed convex plus co  aONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USAbAMER PHYSICAL SOCcJUN  a0661110 v773 a<p>Random sequential adsorption of mixed convex plus concave contour (MC) objects exhibits some distinctly different peculiar characteristics than the cases of purely convex objects. Though the substrate coverage approaches the jamming limit with time t as t(-p), same as that for convex objects, the law p similar to 1/d(f), valid for convex objects with d(f) degrees of freedom, does not hold for MC objects. Interestingly, for a fixed number of degrees of freedom, the exponent p changes with the degree of nonconvexity and bears a near perfect correlation with the same.</p>1 aShelke, Pradip, B.1 aOgale, S., B.1 aKhandkar, M., D.1 aLimaye, A., V.  uhttps://library.ncl.res.in/content/peculiarities-adsorption-kinetics-mixed-convex-plus-concave-contour-objects-0