Characteristic properties

In this paper, we investigate the characteristic properties of idempotent triangular matrices over commutative semirings and describe the structure of such matrices in cases where the entries on their main diagonal are pairwise orthogonal idempotent elements.

8p viengfa 28-10-2024 1 1   Download

This review paper aims to summarize the existing research to identify the main factors influencing the mechanical characteristics of cement-treated soil, specifically unconfined compressive strength (UCS), tensile strength, and modulus of elasticity.

17p viengfa 28-10-2024 1 1   Download

In this study, spinel ferrite nanoparticles CoFe2-xLaxO4 (x = 0, 0.025, and 0.05) were successfully synthesized via a simple co-precipitation method using a 5% NaOH solution as a precipitating agent. The physicochemical properties of the materials, annealed at 850 °C for one hour, were characterized using powder X-ray diffraction (PXRD), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), and vibrating-sample magnetometry (VSM) at room temperature.

10p viling 11-10-2024 1 0   Download

In everyday life, nature has given us countless useful medicinal plants. Among the common plants in Vietnam, the custard apple (Annona squamosa L.) has not been mainly used as a fruit but also traditionally as a medicine. However,studies on morphological characteristics remain limited in Vietnam as well as around the world. Determine the morphological and microscopic characteristics, and physicochemical features of A. squamosa leaves.

6p viling 11-10-2024 0 0   Download

The single phase of Mn0.5Fe2.5O4 spinel crystals was prepared by the microemulsion method with the oil phase is DGDE (diethylene glycol diethyl ether). The characteristics of the materials have been determined by the X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDX), Scanning electron microscopy (SEM) and Brunaure-Emmet-Teller (BET) nitrogen adsorption and desorption, Vibration sampling magnetometer (VSM), Fourier transform infrared spectroscopy (FTIR).

7p vikwong 29-09-2024 3 1   Download

Uvaria, a genus within the Annonaceae family, encompasses around 150 species of flowering plants. Uvaria boniana is extensively found throughout Vietnam and is utilized in traditional medicine practices. The aim of this study was to determine the microscopic characteristics and evaluate the antioxidant activity of Uvaria boniana.

6p viengfa 29-09-2024 2 1   Download

In this paper, the continuous stiffness measurement (CSM) indentation is employed to investigate fatigue mechanical properties of structural steel under cyclic loading. For this purpose, several representative analytical approaches were introduced to estimate the basic mechanical properties including Young’s modulus and indentation hardness from the characteristics of the loading/unloading curves.

11p vifilm 24-09-2024 2 1   Download

In this study, grid nanoindentation and statistical deconvolution analysis were applied into a developed Ultra-high performance concrete (UHPC) to broaden the understanding of the microstructure phases and their mechanical properties.

12p vifilm 24-09-2024 1 1   Download

This paper focuses on some microstructure characteristics of the ettringite binder based on a C12A7 rich cement and a hemihydrate at early age. Some important characteristics of this binder were found, such as: short setting time (about 40–50 minutes), rapid expansion just after initial setting time, rapid evolution of porosity and bound water during the first 5 hours of hydration.

7p viyoko 24-09-2024 3 1   Download

This study investigates the performance of prototype U-FREIs under cyclic loading by both experiments and FE analysis. In experiments, four prototype specimens with the same sizes in plan and two different values of shear modulus are produced, and then the characteristic properties including the horizontal stiffness as well as the energy dissipation capacity and the equivalent viscous damping are assessed.

10p viyoko 24-09-2024 2 1   Download

This study aims to investigate the effectiveness of the green microwave technique in producing 1T/2H-MoS2 nanomaterials using polyol solvents. The paper presents a thorough analysis of the structural and property characteristics of the synthesized materials and elucidates the underlying chemical mechanism that governs the formation of hybrid-phase nanostructures. Additionally, the role of polyol solvents in the practical synthesis of nano MoS2 under microwave heating is evaluated and explained.

15p xuanphongdacy06 18-09-2024 1 1   Download

In this study, a computational investigation of the physicochemical properties of hypericin and pseudohypericin revealed drug-like characteristics. Pharmacokinetic predictions indicated that hypericin and pseudohypericin are non-toxic to the central nervous system, hepatic system, and cardiac system. Molecular docking results indicated a strong binding affinity of hypericin/pseudohypericin with MPXV thymidylate kinase. As a result, these compounds are being considered as potential Mpox control candidates.

11p xuanphongdacy06 18-09-2024 3 1   Download

Dental caries is the most prevalent chronic childhood disease with numerous predisposing factors. Salivary properties have been linked to progressive dental caries in previous studies. To assess the salivary characteristics among school-going children aged 12 years from two urban and suburban schools in Can Tho city.

7p vinatisu 29-08-2024 1 0   Download

Harvesting microalgae by centrifugation and filtration is very costly, affecting technical and economical feasibility of downstream processing of algal biomas to bioproducts. Flocculation is a potential technique for recovery of algae biomass. Particularly, flocculation using magnetic nanoparticles offers high separation efficiency due to their high surface area and magnetic properties. I

10p dianmotminh02 03-05-2024 5 1   Download

Lead-free (Na0.59K0.41)(Nb1-xSbx)O3 ceramic (x = 0 ÷ 0.12) were prepared by the solid phase reaction method. This study aimed to address the need for practical applications by examining the impact of (K0.41Na0.59)NbO3 lead-free.

8p viritesh 02-04-2024 7 3   Download

"Master's thesis of Science: Intestinal permeability and functional properties of duodenal enteric neurons in a mouse model of autism" is structured as follows: Chapter 1: Introduction; Chapter 2: Measuring intestinal permeability in the Neuroligin-3R451C mouse model of autism; Chapter 3: Optimisation of the patch-clamp recording technique in the enteric nervous system to examine action potential characteristics in mouse duodenal myenteric neurons.

147p runthenight04 02-02-2023 10 3   Download

A new study reveals comprehensive and unique epigenetic properties of glioma stem cells, leading to novel molecular insights and therapeutic potentials toward glioblastoma multiforme treatment.

3p vimichaelfaraday 25-03-2022 11 1   Download

The tectonic and structural properties of Erzurum and its surroundings have been investigated by evaluating the seismotectonic b - value, magnetic anomaly, edge detection analysis (total horizontal derivative (THDR) and tilt angle (TA)), Curie Point Depth (CPD), P-wave velocity (Vp), and Vp / Vs (S - wave velocity) ratio and by imaging the regional distributions of these parameters. For this purpose, all parameters have been combined to be able to reveal the new useful results on the study region and are presented for different locations and depths.

24p tanmocphong 29-01-2022 25 2   Download

Objectives of the study: Determining the growth characteristics and adaptability of some triploid acacia clones in 3 ecological regions (Northeast, North Central and Southeast); đetermine the basic wood properties for some promising triploid acacia clones; identify some reproductive characteristics of some triploid acacia clones

27p guitaracoustic09 14-01-2022 15 2   Download

In this paper, the Finite Element Method (in ANSYS) is used to investigate natural frequency of vibration and bending characteristics under varying pressure loads applied on the top skin when changing fundamental properties of some gradient configurations, including angular gradient, thickness gradient and functional gradient configurations of the auxetic plate with honeycomb structure.

17p meyerowitz 25-12-2021 8 0   Download