Manufacturing Strategy: An Analysis of the Saudi Manufacturing Private Sector

This study is motivated by the desire to develop an understanding of the manufacturing strategy concept within the Saudi business environment. More specifically the objectives of the study are to detect the existing type of manufacturing strategies in Saudi plants in the last two years (i.e., 1987 and 1988) as well as in the next two years (i.e., 1990 and 1991); to use SWOT analysis to find out strengths and weaknesses within the plants surveyed as well as opportunities and threats in the environment; and finally to test six hypotheses of the model of manufacturing strategy. The model consists of eight factors: organisational environment, corporate and business strategies, manufacturing task statement, manufacturing task, the role of the production manager, structural category of decisions, infrastructural category of decisions, and finally organisational performance

Synthesis and Characterization of Palladium (II) Complexes With Some Pyridine Derivatives

Complexes of palladium (II) with pyridine derivatives in general formula: trans- [PdCl2L1 2], (where: L1 = 2- picoline, 3- picoline, 4- picoline); [pd L1 4](BF4) 2, (Where: L1=3-picoline, 4-picoline); trans- [PdCl2L2 2] and [pd L2 4] (BF4) 2, (Where: L2 = 2-aminopyridine, 3 - aminopyridine, 4 -aminopyridine) were prepared. All componnds have been characterised by spectroscopic methods [I.R, U.V-Vis, Atomic Absorption], Microanalysis (C. H .N) a long with conductivity measurements. From the above data the proposed molecular structure for all prepared complexes are square planar geometries about pd (II)

Review of Inverse Laplace Transform Algorithms for Laplace-Space Numerical Approaches

A boundary element method (BEM) simulation is used to compare the efficiency of numerical inverse Laplace transform strategies, considering general requirements of Laplace-space numerical approaches. The two-dimensional BEM solution is used to solve the Laplace-transformed diffusion equation, producing a time-domain solution after a numerical Laplace transform inversion. Motivated by the needs of numerical methods posed in Laplace-transformed space, we compare five inverse Laplace transform algorithms and discuss implementation techniques to minimize the number of Laplace-space function evaluations. We investigate the ability to calculate a sequence of time domain values using the fewest Laplace-space model evaluations. We find Fourier-series based inversion algorithms work for common time behaviors, are the most robust with respect to free parameters, and allow for straightforward image function evaluation re-use across at least a log cycle of time

Rare case of spot diagnosis of nephrotic syndrome in a Saudi male

A 26- year- old Saudi male school teacher presented with clinical features of nephrotic syndrome. Physical examination revealed loss of subcutaneous fat over the face and upper arms (partial lipodystrophy) and drusen in both eyes. The serum level of complement C3 was low, with normal C4. Renal biopsy revealed features consistent with membranoproliferative glomerulo- nephritis (MPGN) type II [Dense Deposit Disease (DDD)]. He was treated with prednisolone and mycophenolate mofetil with partial remission. He also received lipitor and lisinopril. The occurrence of partial lipo- dystrophy and drusen in a patient with nephrotic syndrome provides a rare clinical opportunity of making a bedside diagnosis of type II MPGN even before kidney biopsy

Experimental and In-Silico Computational Modeling of Cerium Oxide Nanoparticles Functionalized by Gelatin as an Eco-Friendly Anti-Corrosion Barrier on X60 Steel Alloys in Acidic Environments

An eco-friendly and a facile route successfully prepared novel cerium oxide nanoparticles functionalized by gelatin. The introduced CeO2@gelatin was investigated in terms of FE-SEM, EDX, TEM, chemical mapping, FT-IR, and (TGA) thermal analyses. These characterization tools indicate the successful synthesis of a material having CeO2 and gelatin as a composite material. The prepared composite CeO2@gelatin was used as an environment-friendly coated film or X60 steel alloys in acidizing oil well medium. Moreover, the effect of CeO2 percent on film composition was investigated. LPR corrosion rate, Eocp-time, EIS, and PDP tools determined the corrosion protection capacity. The CeO2@gelatin composite exhibited high protection capacity compared to pure gelatin; in particular, 5.0% CeO2@gelatin coating film shows the highest protection capacity (98.2%), with long-term anti-corrosive features. The % CeO2@gelatin-coated films formed the protective adsorbed layer on the steel interface by developing a strong bond among nitrogen atoms in the CeO2@gelatin film and the electrode interface. Surface morphology using FESEM measurements confirmed the high efficiency of the fabricated CeO2@gelatin composite on the protection X60 steel alloys. DFT calculations and MC simulations were explored to study the relations between the protection action and the molecular construction of the coated systems, which were in good alignment with the empirical findings