by Laila Midhat  , Naaila Ouazzani  , Abdessamed Hejjaj  , Ahmed Ouhammou  and Laila Mandi

Received: 29 December 2020;  Published: 22 July 2021;  doi: 10.21926/rpm.2103030

This study aimed to assess the effectiveness of the phytostabilization ability of the native Moroccan plant Citrullus colocynthis on the neutralization of soil acidity and stabilization of metallic trace elements (MTEs) assisted by marble waste. Mine tailings (MT) collected from an abandoned polymetallic site were mixed with powdered marble (PM) using different mixing ratios (%): (MTPM25), (MTPM50), (MTPM75), and agricultural soil (AS) acting as the control. Seeds of C. colocynthis were selected and planted under g [...]

by Fahriye Yagmur Bütün Buschalsky  and Carsten Mai

Received: 15 March 2021;  Published: 22 July 2021;  doi: 10.21926/rpm.2103029

A thermo-hydrolytic disintegration process qualifies as a promising option for recycling the waste MDF and preserving the fibrous morphology of the recovered lignocellulosic fibre material. This study aims to include a drainage process between the thermo-hydrolytic disintegration and the further utilization of the recovered fibres (RF) obtained using a screw press for removing the disintegration water (DW). In this context, the chemical properties of the RF (pH, nitrogen content, formaldehyde emissions) and the DW [...]

by Lucy V. Fisher  and Andrew R. Barron

Received: 24 February 2021;  Published: 16 July 2021;  doi: 10.21926/rpm.2103028

One of the largest problems facing the steelmaking industry is the high amount of waste currently produced and the low amount of waste that is currently recycled. This study aims to look at the suitability of 3 different samples of basic oxygen steelmaking (BOS) slag as a construction material, in concert with their carbon capture capacity. Characterization by scanning electron microscopy (SEM), X-ray diffraction (XRD), inductively coupled plasma spectroscopy (ICP), X-ray fluorescence (XRF), CO2 adsorption analysis [...]

by Andrea P. Cuevas-Gómez  , Izlia J. Arroyo-Maya  and Hernandez-Sanchez Humberto

Received: 26 April 2021;  Published: 22 June 2021;  doi: 10.21926/rpm.2102027

Whey protein is a byproduct of cheese, casein, and Greek yogurt produced in Europe, North America, and Australasia. It is a substantial source of functional proteins and peptides for the worldwide food industry. α-Lactalbumin (α-La) is a globular protein that can be isolated from WPI (whey protein isolates) using techniques such as chromatography/gel filtration, membrane separation, etc. α-La is used in the elaboration of functional foods and is a very good source of peptides with anticancer, antimicrobial, antivir [...]

by Herinjaka Haga Ratsimbazafy  , Aurélie Laborel-Préneron  , Camille Magniont  and Philippe Evon

Received: 26 March 2021;  Published: 20 June 2021;  doi: 10.21926/rpm.2102026

The use of plant aggregates obtained from agricultural co-products mixed with mineral binders to form eco-friendly insulating building materials has been initiated for a few years to bring environmentally friendly solutions to the construction sector. Several studies on different agro-resources have already been carried out, providing various information about the properties of plant aggregates and plant-based concrete. However, the characteristics of the agricultural co-product, which allow it to qualify as a plan [...]

by Sam T Briggs  , Mary Beth B Monroe  , Mark A Weizbicki  , Sayyeda Marziya Hasan  and Duncan J Maitland

Received: 05 April 2021;  Published: 25 June 2021;  doi: 10.21926/rpm.2102025

Shape memory polymers (SMPs) are highly attractive materials for medical devices. Specifically, SMP foams are currently being used as embolic devices in peripheral and cerebral vascular applications. To ensure the proper function and safety of these materials in their intended applications, it is important to understand how processing treatments, such as aging, sterilization, and foam composition can influence their degradation. Here, SMP foams were treated with industry relevant processing parameters, and the infl [...]

by Mariusz KSIĄŻEK

Received: 24 March 2021;  Published: 15 June 2021;  doi: 10.21926/rpm.2102024

Metal parts of endoprosthesis have a detrimental effect on the bones that come into contact with them and on the entire body of the patient. Coating them with biocompatible layers (hydroxyapatite and bioglass) has not yet brought about permanent results. In this study, the author showed the possibility of using a binder containing sulfur waste for this purpose. The sulfur binder is used industrially in electrical engineering and construction applications. The chemical properties of elemental sulfur indicate that it [...]

by Krzysztof Wierzcholski

Received: 08 October 2020;  Published: 02 June 2021;  doi: 10.21926/rpm.2102023

This paper aims to highlight the result of a new progression of mathematical estimation methods of stochastic bio-hydrodynamic lubrication parameters for arbitrary, curvilinear, non-rotational, co-operating, living biological surfaces coated with phospholipid bi-layers. Movable, non-rotational, co-operating surfaces occur in various biological friction nods like the collar bone, the blade bone, the jump joint, and the wrist joint. Specifically, the author presents a synthetic and comprehensive estimation of stochas [...]

by Pithchai Pandian Sivakumar  , Elke Gruyaert  , Nele De Belie  and Stijn Matthys

Received: 09 March 2021;  Published: 02 June 2021;  doi: 10.21926/rpm.2102022

Depending on the availability of aggregate sources pertaining to their geographic locations, the concrete industry utilizes conventional aggregates such as marine sand, dredged gravel, or crushed rocks. This method requires high energy and high processing costs for washing and grinding. The objective of this work is to use Modified Ferro silicate slag (MFS), a by-product obtained from the copper industry, as an alternative to the conventional fine aggregates found in mortar. No additional processing such as washing [...]

by Doo-Sung Lee

Received: 09 December 2020;  Published: 02 June 2021;  doi: 10.21926/rpm.2102021

This paper concerns a poroelastic half-space in which plane compressional waves are scattered by a spherical inclusion. Addition theorems for the spherical wave functions are utilized to meet the boundary conditions on the plane, and the satisfaction of the given conditions on the boundary of the sphere leads to three infinite series equations, whose solution can be acquired by successive approximations. Further, its existence and uniqueness are discussed.