by Elvira A. Guseinova  and Samira R. Safarova

Received: 28 July 2022;  Published: 26 October 2022;  doi: 10.21926/cr.2204037

In this study, we found that adding catalytic cracking feedstock, vacuum gas oil, and naphthenic acids in the amount of 0.005–0.0075% vol. increased the liquid target fractions, i.e., gasoline and light gas oil. The decrease in the yield of hydrocarbon gas at a practically constant degree of conversion of the raw material indicated a small proportion of the reactions of re-cracking of the resulting products. This also indicated the resource-saving nature of the process, allowing a larger amount of gasoline fraction [...]

by Simona Bassoli  , Anett Schallmey  , Julie Oble  , Giovanni Poli  and Alexandre Pradal

Received: 22 July 2022;  Published: 26 October 2022;  doi: 10.21926/cr.2204036

A two-step protocol for the synthesis of aryl-3-hydroxypropanones, which were regarded as lignin degradation products, was proposed herein. This protocol provided a more rapid and easier access to aryl-3-hydroxypropanones, and aryl-3-hydroxypropanones were expected to be ideal platform molecules for the synthesis of more complex value-added targets.

by Moira M. Ijzerman  , Amir B. Bazrgar  , Andrew M. Gordon  and Naresh V. Thevathasan

Received: 08 September 2022;  Published: 25 October 2022;  doi: 10.21926/aeer.2204043

Carbon (C) storage potential was quantified for four tree species which are commonly incorporated into tree-based intercropping (TBI) systems and compared with conventional agricultural systems in southern Ontario, Canada. In the 31-year-old TBI system at the University of Guelph's Agroforestry Research Station, Norway spruce (Picea abies), white cedar (Thuja occidentalis), black walnut (Juglans nigra) and red oak (Quercus rubra) were planted in tree rows, intercropped with soybean (Glycine max). In the conventiona [...]

by Shih-Ang Hsu

Received: 28 August 2022;  Published: 21 October 2022;  doi: 10.21926/aeer.2204042

In August 2021 Hurricane Ida devastated southeast Louisiana. On the basis of numerous pertinent meteorological-oceanographic (met-ocean) information including datasets and graphics as supplied by various public agencies, several unique topics related to marine meteorology and air-sea-land interactions are investigated. It is found that a newly proposed revised relation between minimum sea-level pressure and maximum sustained wind speed is verified during Ida. Characteristics of the rapid intensification, defined as [...]

by Mohammad Yaghoub Abdollahzadeh Jamalabadi

Received: 09 July 2022;  Published: 19 October 2022;  doi: 10.21926/rpm.2204021

New lubrication events can be predicted using improved pathological non-Newtonian physiological fluids coupled to phospholipid-based bilayers in variable time-dependent magnetic fields under random non-steady conditions. In this study, we investigated nanofluid lubrication systems for synovial joints. The particles of PSPMA-g-HSNPs were used as nanoparticles. The hydrodynamic interaction between the knee bones separated by a nanofluid film was considered here for various nanofluid concentrations. The simulation ind [...]

by Manal Al-Eid  , Lianhui Ding  , Donya Sewdan  , Emad N. AL-Shafei  , Rasha Al-Ghamdi  , Abdulaziz Alqarawi  and Essa Al naimi

Received: 13 August 2022;  Published: 17 October 2022;  doi: 10.21926/cr.2204035

Parent ZSM-5 and Ga-modified ZSM-5 catalysts with different Si/Al ratios and particle sizes were prepared. The physicochemical properties of the prepared catalysts were investigated by performing X-ray powder diffraction analysis, BET surface area analysis, and NH3-TPD analysis. The performance of the aromatization reaction of the prepared catalysts was evaluated with 1-hexane as a model compound. The zeolite catalysts with a low SiO2/Al2O3 ratio possessed better activity than those with a high SiO2/Al2O3 ratio. Ga [...]

by Fabiano A.N. Fernandes

Received: 23 August 2022;  Published: 17 October 2022;  doi: 10.21926/cr.2204034

Biodiesel is derived from renewable vegetable or animal sources and is either used as a standalone fuel or blended with oil-based diesel. The kinetic mechanism of the esterification of oleic acid was investigated in a conventional batch reactor and a batch reactor coupled to a water adsorption system. The esterification was performed with oleic acid and methanol at different temperatures (70 to 110 °C) and alcohol-to-oleic acid molar ratios (3:1 to 9:1), using sulfuric acid as a catalyst. A kinetic model was constr [...]

by Navya Uppu  , Kelly McMahen  , Tasneem Khasru  and Mark A. DeCoster

Received: 02 August 2022;  Published: 17 October 2022;  doi: 10.21926/rpm.2204020

Green synthesis of nanomaterials endeavors to reduce the use of high energy methods with those that may include lower temperatures and pressures, use of natural products, and bottom-up self-assembly. Here we describe the generation of metal-organic biohybrids (MOBs) with nanoscale features synthesized at physiological (37°C) and room temperature (25°C). These MOBs utilized the naturally occurring amino acid dimer cystine as the biological component, and a series of metals, including copper, silver, and cobalt. The [...]

by Susan E. Reid  , Bessam Abdulrazak  and Tianqi Xiao

Received: 08 August 2022;  Published: 17 October 2022;  doi: 10.21926/obm.geriatr.2204209

Despite the increase in use and interest in mobile devices by older adults, to date, there is still limited research carried out to better understand older adults’ usage and needs as they relate to such devices. As such, this research examined the use of two types of mobile devices, smartphones, and tablets, by older adults (i.e., age 65+), as well as the use of a new interface, developed for research purposes, called “PhonAge”. This study was exploratory, and utilizes frequency data and tables, in order to get a s [...]

by Han Liu  , Biao Gao  and Xingxing Wang

Received: 30 June 2022;  Published: 17 October 2022;  doi: 10.21926/obm.neurobiol.2204142

As an indispensable active atmosphere and meaningful emotional expression in social media, emojis describe the emotions of users in specific situations in a funny, humorous, euphemistic, and implicit form and attract users to use them consciously or unconsciously with their quick and convenient features. Currently, the research on the psychology of emoji usage is mostly from the perspective of users, while neglecting the essential attributes of emojis. The purpose of this study was to investigate and summarize the [...]