1. Ablation Threshold 612 2. Ablation Enthalpy 613 3. Ablation Efficiency 613 C. Mechanistic Models 613 1. Steady-State Vaporization Models 614 2. Thermomechanical Models 614 D. Molecular Dynamics Simulations 615 VIII. UV and IR Ablation 615 A. Tissue Absorption Coefficients 615 B. Ablation without Stress Confinement 617 1. Temperature Rise and Thermal Diffusion 617 2. Kinetics of Tissue Decomp...

In free-radical polymerization, a monomer-initiator mixture is converted into a polymer. Depending on initial and boundary conditions, free-radical polymerization can occur either in a bulk mode (BP) or in a frontal mode (FP) via a propagating selfsustaining reaction front. The main goal of this paper is to study the role that bulk polymerization plays in frontal polymerization processes for va...

the aim of the current study was to design a porous osmotic pump–based drug delivery system for controlling the release of buspirone from the delivery system. the osmotic pump was successfully developed using symmetric membrane coating. the core of the tablets was prepared by direct compression technique and coated using dip-coating technique. drug release from the osmotic system was studied us...

in the present investigation, dead bacterium biomass streptomyces rimosus was used as an inexpensive and efficient biosorbent for cr (iii) removal from aqueous solution. the bacterial biomass was treated with 0.1 m naoh. sorption level of 65 mg/g was observed at ph 4.8 while precipitation effect augmented this value at higher ph range. chromium desorption increased with decreasing desorption ag...

date palm (phoenix dactylifera l.) with its delicious and nutritious bearing fruit (dates) is an important agricultural core in iran. to extend the shelf life of date palm fruit, some such methods of preservation as drying are suggested and drying influences physicochemical and quality characteristics of products, thus modeling of drying kinetics is one of the tools for process control. in this...

Background: Considering the severe health and environmental hazards caused by the entry of diazinon toxin into water resources, its removal is very important. Given the high costs of imported adsorbents, this research attempted to evaluate, for the first time, the efficiency of Iranian activated carbon in removing diazinon from aqueous solutions. Methods: In this batch experimental study, the ...

Although senescence is a defining property of euploid mammalian cells, its physiologic basis remains obscure. Previously, cell kinetics properties of normal tissue cells have not been considered in models for senescence. We now provide evidence that senescence is in fact the natural consequence of normal in vivo somatic stem cell kinetics extended in culture. This concept of senescence is based...

Dyes in the textile industry are the most significant source of pollutants, which cause damaging effects to people’s health. Reactive black 5 (RD5) is an anionic color that is currently used in the textile industry. This study is designed to provide the strategies to synthesize and characterize the new family of functionalized magnetite nanoparticles via a chemical co-precipitation method with ...

Pretreated waste Streptomyces fradiae biomass was used as biosorbent to remove tetracycline (TC) from model aqueous solutions. The biosorption study conducted in a batch system evaluate the impact of initial pH, dosage, TC concentration and contact time. Langmuir, Freundlich Dubinin–Radushkevich (D–R) models were applied describe isotherm equilibrium studies. Langmuir fitted data better than D–...

Mass action kinetics whose elementary reactions are of at most second order provide the simplest models of nonlinear chemical systems. Despite their simplicity, however, only few7 investigations deal with second order mass action kinetics in a system­ atic and general setting. In [1] Aris showed the connection between these kinetics and certain nonassociative algebras. Jenks [2, 3] studied gene...