Experimental investigation of performance
-
This paper aims to study effect of MQL using nano cutting oil on the hard milling process. The Box-Behnken experimental design was utilized to investigate the effects of input variables on the responses. The obtained results indicated that the concentration of nanoparticles, cutting speed and feed rate cause the strong influences on the surface roughness and cutting forces.
5p viambani 18-06-2024 1 1 Download
-
This study examined the impact of teaching biology using interactive multimedia on the students’ academic performance in biology at Community Day Secondary Schools (CDSS). This study was conducted in three secondary schools in the Dedza district, in the central region of Malawi. A pretest-posttest quasi-experimental approach was used in this investigation.
12p viarnault 25-04-2024 2 1 Download
-
The effect of temperature on the electrical resistivity of high-performance fiber-reinforced concretes (HPFRCs) was highlighted in this investigation through an experimental approach. Generally, the temperature exhibited a considerable effect on the electrical resistivities of cement-based composites.
12p viohoyo 25-04-2024 3 2 Download
-
Cutting condition is a pivotal factor affecting cutting performance in the turning process, especially in marine engineering, where materials must withstand the challenges of maritime environments. This study presents an experimental investigation of the impact of cutting process parameters on surface roughness, Vicker hardness, and cutting temperature in the turning of C45 steel, a critical material for marine applications.
7p vijaychest 24-04-2024 10 3 Download
-
Boga-TN is a formula originating from herbal medicines that are used to treat liver disorders; however, its toxicity is not yet investigated. Therefore, this study was conducted to assess the acute and sub-chronic toxicity of Boga-TN tablets in experimental animals. Acute toxicity study was performed via Swiss mice,
9p vilarry 12-03-2024 4 2 Download
-
This article investigated the impacts of mind mapping on the vocabulary development of fifthgraders at Tran Quoc Toan Primary School. The present study utilized a quasi-experimental design: pretest, posttest control group design. Participants were 68 students divided into two groups: the experimental group (Class 5/4) and the control group (Class 5/2).
15p vimichaelfaraday 28-12-2023 13 5 Download
-
Diffuse large B-cell lymphoma (DLBCL) is one of the most aggressive malignant tumors. Chromobox (CBX) family plays the role of oncogenes in various malignancies. Methods The transcriptional and protein levels of CBX family were confirmed by GEPIA, Oncomine, CCLE, and HPA database. Screening of co-expressed genes and gene function enrichment analysis were performed by GeneMANIA and DAVID 6.8.
17p vioracle 29-09-2023 9 2 Download
-
This study is directed to understand the origin of that difference with a numerical simulation of the process. The mechanical behaviour of the materials was investigated in tension and hydraulic bulge test, out of comparison’s sake and to derive the hardening law over a strain range representative of the process. Finite element simulations are performed using the von Mises criterion coupled with isotropic hardening, to compare the predicted forming load and springback parameters with experimental values.
14p viisac 15-09-2023 8 3 Download
-
This paper presents the experimental results of structural responses of box beams using TRC. Ten specimens in two groups are designed with different longitudinal and transverse textile reinforcement ratios. All the specimens are loaded under a four-point bending test, in order to investigate both flexural and shear behaviour of TRC box beams.
11p vifriedrich 06-09-2023 5 2 Download
-
This study aims to compare and contrast the performance of Artificial neural network (ANN) and Decision Tree (DT) methods in predicting the compressive strength and slump values of concrete samples. Experimental data used for model building and comparison were obtained from a previous research project.
9p vifriedrich 30-08-2023 5 3 Download
-
This study was carried out to investigate the impacts of Flipgrid on students’ speaking skills and collect deeper perceptions on the use of Flipgrid after the training process. The study employed a quasi-experimental design with eighty Vietnamese students from two classes at College of Economic Relations, Ho Chi Minh city.
13p viberkshire 09-08-2023 8 5 Download
-
This paper presents experimental and numerical investigations to assess the relative fire structural resistance of thermo-mechanically compressed (or densified) spruce wood. First of all, both compressed and uncompressed spruce samples of dimensions of 100 mm x 100 mm x 19 mm have been subjected to fire in a cone calorimeter under 20 kW/m2 and 75 kW/m2.
5p vifalcon 16-05-2023 5 3 Download
-
The following boundaries are considered in pursuing the proposed research study: This study is conducted on an experimental basis; Domestic hot water supply using evacuated tube solar thermal collectors has been selected as the applied context for this study; Paraffin has been chosen to be used as a PCM for this study due to its attractive techno-economic properties for use with solar thermal systems in domestic hot water applications; The effect of scale factor is not studied; The effect of the shape of the PCM container is not investigated in this study.
102p runthenight04 02-02-2023 4 2 Download
-
The nasal route for drug administration has the potential for local and systemic delivery of a wide variety of therapeutics. Nasal spray drug delivery has the potential to administer drugs to the bloodstream, avoiding the use of painful needles. While there is great potential, studies in the area are limited and somewhat conflicting. This study aimed to support the improvement of nasal drug delivery through experimental work on a model nasal cavity and through experimental characterisation of nasal spray behaviour. Four different brands of nasal spray were investigated.
91p runthenight04 02-02-2023 5 2 Download
-
In this study, the removal of DMDS was investigated by adsorption on activated carbon cloth (ACC) in the gas phase. Kinetics and isotherm studies were performed. Adsorption kinetics followed by GC-MS and the data were processed using different models. When correlation coefficients (R2 ) of linear regression analysis are analyzed, it is seen that the concordance of experimental data to the pseudo-second-order equation is quite good.
10p lyhuyenthu 31-01-2023 8 2 Download
-
Chemical absorption of CO2 into aqueous amine solutions using a nonstirred bubble column was experimentally investigated. The performance of CO2 absorption of four different primary and secondary amines including monoethanolamine (MEA), piperazine (PZ), 2-piperidineethanol (2PE), and homopiperazine (HPZ) were compared. The effects of initial concentration of amine, the inlet mole fraction of CO2 , and solution temperature on the rate of CO2 absorption and CO2 loading (mol CO2 /mol amine) were studied in the range of 0.02–1 M, 0.10–0.15, and 25–40 °C, respectively.
12p lyhuyenthu 31-01-2023 5 2 Download
-
Photovoltaic energy sources are increasingly in demand due to the cost of petroleum fuels and concerns about carbon emissions. For this reason, it is important to determine the photovoltaic properties of the compounds that are thought to be suitable for these energy sources. Here, 1,1,2,3,4,5-Hexaphenyl-1H-silole (HPS) and 1,1,2,3,4,5-Hexaphenyl-1H-germole (HPG) compounds that are thought to have excellent photovoltaic properties, electronic and charge transport properties were investigated experimentally and theoretically.
13p lyhuyenthu 31-01-2023 2 2 Download
-
Quantitative traits are typically considered to be under additive genetic control. Although there are indications that non-additive factors have the potential to contribute to trait variation, experimental demonstration remains scarce. Here, we investigated the genetic basis of growth in Atlantic salmon by exploiting the high level of genetic diversity and trait expression among domesticated, hybrid and wild populations.
17p vihagrid 30-01-2023 5 3 Download
-
The effective separation of many solutes, including pharmaceuticals, can be performed using an ion-pair reagent (IPR) in the mobile phase. However, chromatographic separation and mathematical modelling are a challenge in ionpair chromatography (IPC), especially in preparative mode, due to the complicated chromatographic process.
10p viginny 23-12-2022 5 3 Download
-
In the last decade, there has been a growing interest in developing microfluidic systems as new scaledown models for accelerated and cost-effective biopharmaceutical process development. Nonetheless, the research in this field is still in its infancy and requires further investigation to simplify and accelerate the microfabrication process.
12p viginny 23-12-2022 11 3 Download