A 3-year field experiment on a sandy soi] supporting a strawberry crop was carried out to study the effects of the application of three organic residues (AC, olive mill wastewater sludge compos!; MWC, municipal solid waste compost; and PW, paper mill waste) on organic matler content, enzymatic activities, and available heavy metals. Significant increases in organic carbon content (total organic...

The solution of a two dimensional di usion problem with discontinuous coefcients is analyzed on a particular two-regions domain. The solution is shown to contain a singular part, and the particular behavior is quantitatively evaluated. It is well kown that the degree of regularity of the solution for such problem determines the accuracy of the numerical techniques used to approximate the soluti...

Rice husk ash (RHA) is an agrowaste byproduct resulting from the incineration of rice husks for power production; white RHA is 90 wt% or more silica, which makes it a potentially sustainable and inexpensive substitute for commercial (less “green”) silica filler. Past research on polypropylene (PP)-RHA hybrids made by melt processing has yielded modest increments in Young’s modulus, reduced yiel...

Performability is a composite measure for the performance and reliability, which may be interpreted as the cumulative performance over a nite mission time. The computation of its distribution allows the user to ensure that the system will achieve a given performance level. The system is assumed to be modeled as a Markov process with nite state space and a reward rate (performance measure) is as...

I-L'~laboration du programme de Traduction Auto-matique du C.E.T.A. (14) a fair apparaTtre l'int~r~t d'un langage ~nterm~diaire entre la langue de d~part (langue source) et la langue d'arriv~e (langue cible). Un tel langa-ge, appel~ "langage pivot" (16) a l'avantage de n'@tre pas remis en cause de fa~on fondamentale lorsque l'on change de langue source par exemple. Dans la chalne de traduction ...

Scanning Electro n Mic roscopy (SEM) and X· ray Mic ro· analys is (EOS) have been used to investigate product conwinc r interaction problems in plai n tinplate metal food containers and to examine glass and glass-like particles that we re found in canned food . Through the usc o f SEMEDS. it wa~ detemlined that: sulfa te contain ing panicles from the cannery cooling water reacted with exposed i...

High-performance production targets and other critical accelerator components intercepting intense, energetic proton beams are essential as the accelerator community envisions the next generation, multi-MW accelerators. Materials that have served the nuclear sector well may not be suitable to play such a role which demands that the material comprising the beam-intercepting element must, in addi...

Diagnostic colonoscopy acquires the status of gold standard investigation for evaluation of colonic problems. Formally, colonoscopy was first initiated in June 1969 in America. Colonoscopic history can be traced back to 1958. Matsunaga from Japan was the pioneer as he used a gastrocamera which was the start of colonoscopic era. Flexible sigmoidoscopy was later introduced in 1963. Existing colon...