Abdelhamid Noufid

University Ibn Zohr - Agadir · Department of Mechanics and Civil Engineering

Stevia is known as a valuable spice plant. Freeze drying and gamma irradiation processing have been valuably used for microbial decontamination. In this study, the influence of freeze drying and gamma irradiation at the doses of 0.5, 1 and 2 kGy on the extraction yield, total polyphenol content, DPPH radical scavenging activity, and antimicrobial a...

As a result of the growing demand for low-calorie sweeteners, interest in stevia plant has increased. Two methods are applied for the preservation of stevia leaves: freeze drying and gamma irradiation at 1 kGy. Because most studies have focused on sorption characteristics of plants, the present work aims to evaluate the effect of these two technolo...

The need for construction sand needs to increase due to the increase in population. The use of dunes and coastal sand disfigures shorelines and the consequences are alarming. It is therefore necessary to consider replacing these resources with other more ecological ones. Hence the purpose of this article. In this paper, we study the correct formula...

Green construction, also called sustainable construction or green construction, offers various possibilities in order to reduce the ecological impact of buildings. The use of factory waste in construction is a means of recovering this waste and also a method of protecting the environment, more precisely against the harmful effects on flora and faun...

Because of the repeated passage of trains, anomalies are created inside the rails in the form of cracks of different shapes and position. These are due essentially to the wheel – rail contact. They present a hazard causing at the final stage rail failure, train derailment and accidents. Detecting track anomalies has become a major issue for the ent...

Rebaudioside A is one of the major sweet components found in stevia. The great importance of rebaudioside A in the sweeteners market requires that its physicochemical and microbiological qualities are studied. Therefore, this work aimed to evaluate the microbiological and physical-chemical parameters of commercial rebaudioside A. Its moisture and a...

The effect of freeze-drying and gamma irradiation at 0.5, 1, and 2 kGy on the physicochemical composition (moisture, fat, ash, mineral, and chlorophyll contents), microstructure, total phenolic content, and antioxidant capacity of stevia leaves was investigated in the present study. The results obtained indicated that freeze-drying and gamma irradi...

Use of the infrared thermography principle and finte element method to non destructive testing of material

This article deals with the application of infrared thermography in the detection of anomalies in a reinforced concrete slab. This defect takes several forms, namely, horizontal, vertical, oblique, or spherical. In a previous article, in this journal (Vol 8, Issue 2), the case of inclined and spherical defect was investigated, while, in this one, i...

A roller compacted concrete (RCC) dam is a large civil engineering structure that is subject to a permanent load of water hydrostatic thrust, and the construction of such a structure requires enormous human, material and financial resources. It gives rise to a reserve of water upstream in billions of m3; therefore, a problem in its stability will g...

The development of numerical methods has made digital simulation a very important tool in the field of industry and in various fields of scientific research. In this work, we seek to make a study as complete as possible on the behavior of the slabs of structures. According to the internal anomalies, which can touch these elements. Due on the one ha...

The development of numerical methods has made digital simulation a very important tool in the field of industry and in various fields of scientific research. In this work, we seek to make a study as complete as possible on the behavior of the slabs of structures. According to the internal anomalies, which can touch these elements. Due on the one ha...

The objective of this study is to achieve an optimal formulation of self-compacting concrete using local materials from the country of Morocco, the use of this type of concrete remains very limited compared to a concrete vibrated in this country, due to lack mastery by companies. We will therefore try to study an optimal formulation that respects E...

ct—Non Destructive Testing abbreviated (NDT) is a set of techniques used to characterize the structure integrity state of different areas of industry (civil engineering, electrical engineering, Aerospace ...) without generating degradation, either during production or during use. In this framework, the thermal nondestructive testing is a technique...

In a management system of the quality of concrete in construction sites, a destructive test is always present in the quality assurance procedure (QAP) to assess concrete strengths of the structure (column, beam, insole ... etc), if the resistance measured by laboratory crushing of the cylinders is greater than what was provided in the study phase,...

Un barrage en béton BCR (béton compacté au rouleau) est une grosse structure de génie civil qui est soumise à une charge permanente de la poussée hydrostatique de l’eau, la construction d’un tel ouvrage nécessite des moyens humains, matériels et financiers énormes. Il donne lieu à une réserve d’eau en amont comptée en milliards de m3 , par conséque...