Taking into account the quasi-continuous fragmentation of meteor particles, the formulae describing the variation of both light and ionization along the atmospheric trajectory of meteoroids, are derived. Two methods of data processing are presented enabling the determination of the parameters of quasicontinuous fragmentation,R0, andR1, characterizing the parent body and the fragmentation produc...

The longitudinal, transverse and asymmetric components of the fragmentation function are measured from the inclusive hadrons produced in e + e ? collisions at LEP. As in the deep inelastic scattering, this provides important tests of QCD predictions. Using the lifetime tag procedure it is possible to select Z 0 ! bb events and to compare the fragmentation functions in bb and light quarks events...

Data fragmentation has been proposed as a solution for protecting the confidentiality of sensitive associations when publishing data at external servers. To enrich the utility of the published fragments, a recent approach has put forward the idea of complementing them with loose associations, a sanitized form of the sensitive associations broken by fragmentation. The original proposal considers...

We consider a polymerization (fragmentation) model with size-dependent parameters involved in prion proliferation. Using power laws for the different rates of this model, we recover the shape of the polymerization rate using experimental data. The technique used is inspired from [30], where the fragmentation dependence on prion strains is investigated. Our improvement is to use power laws for t...

In this paper we give an elementary proof of the unique, global-in-time solvability of the coagulation-(multiple) fragmentation equation with polynomially bounded fragmentation and particle production rates and a bounded coagulation rate. The proof relies on a new result concerning domain invariance for the fragmentation semigroup which is based on a simple monotonicity argument.

The occurrence of gelation and the existence of mass-conserving solutions to the continuous coagulation-fragmentation equation are investigated under various assumptions on the coagulation and fragmentation rates, thereby completing the already known results. A non-uniqueness result is also established and a connection to the modified coagulation model of Flory is also made.

We have measured the differential cross sections for the production of π + , K + , K 0 , K * 0 , φ, p, Λ and their corresponding antiparticles in separate samples of flavor-tagged Z 0 → light-flavor (u¯ u, d ¯ d, or s¯ s), Z 0 → c¯ c and Z 0 → b ¯ b events. Clear flavor dependences are observed, and the results are compared with the predictions of three fragmentation models. We have also perfor...

In networks with unstable links the connection between the sender and the receiver may be cut before the entire message has been transmitted. Quantization of the message into blocks before its transmission, enables message fragments consisting of one or more such blocks to be transmitted successfully, even if the connection time is too short for transmitting the entire message. But fragmentatio...

the present study describes the fragmentation under electron ionization (ei) of gas phase serine and threonine amino acids. ab initio methods were performed to calculate the fragmentation paths and interpret the mass spectra. the six lowest energy conformers of l-serine, l-threonine and l-allo-threonine were obtained with b3lyp, g3mp2 and mp2 methods. the adiabatic and vertical ionization energ...