The engine performance

This paper presents a simulation investigation of the combustion characteristics, performance, and emission of a spark ignition engine fueled with gasoline, liquified petroleum gas (LPG), compressed natural gas (CNG), and biogas. The simulation was conducted on the advanced software AVL Boost.

6p vijiraiya 19-05-2025 2 1   Download

This paper aims to enhance computational performance for behavior prediction of tri-directional functionally graded plates using ensemble learning methods such as random forest, extreme gradient boosting, and light gradient boosting machine. Furthermore, the effectiveness of these methods is verified by comparing their results with those of artificial neural networks.

11p visarada 28-04-2025 1 1   Download

In this study, we conducted experiments to produce PVA granules that (i) have good biomass adhesion, withstand hydraulic shear force due to aeration, and settle quickly; (ii) perform wastewater treatment in column SBR configuration as a moving-bed biomass carrier, and (iii) prove the potential to a commercial production scale.

15p visarada 28-04-2025 1 1   Download

This study investigates the compressive performance and mechanical behavior of concrete filled steel tubular (CFST) columns constructed with high strength materials under various compression loading scenarios.

15p visarada 28-04-2025 1 1   Download

This study investigated the effect of nano-CaCO3 content on the hardness (H) and Young’s modulus (E) at the interfacial transition zone (ITZ) surrounding fibers and ultra-high performance concrete (UHPC). Nano-CaCO3 was incorporated at varying contents from 1% to 4% by weight of cement.

11p visarada 28-04-2025 1 1   Download

This study aimed to develop and validate the high performance liquid chromatography (HPLC-DAD) method combined with liquid-liquid extraction followed by an additional clean-up for the simultaneous determination of TMP and SMX in human plasma.

8p visarada 28-04-2025 1 1   Download

Self-healing vulcanized natural rubber (V-NR) was prepared with MgO/ZnO as a binary activator system in the study. Standard Vietnam Rubber Grade 3L (SVR3L) was used as NR source. The SVR3L was vulcanized with ZnO, MgO/ZnO, or MgO as activators and other vulcanizing reagents.

9p visarada 28-04-2025 1 1   Download

This article provides an overview of the mechanism and performance operating cycle of internal combustion engines using water-fuel emulsions and the efficiency, economy, and environmental friendliness of this fuel type for automobiles.

12p viengfa 28-10-2024 2 2   Download

This study aims to explore the perspectives of English for Occupational Purposes students from Hall on the utilization of SRV to develop their oral performances in English. Data was collected from 148 students majoring in Chemical Engineering at SLT, HaUl through an online questionnaire adapted from Encalada and Sarmiento.

6p viyuhi 26-03-2025 4 1   Download

This article reports on research into the problems that non-English major freshmen at Quy Nhon University face when they lose interest in learning English speaking skills. The subjects were 200 first-year non-English majors belonging to non-English majors such as Economics, Accounting, Natural Resources and Environmental Management, Food Technology, and Construction Engineering etc. at Quy Nhon University.

17p tuetuebinhan000 23-01-2025 5 1   Download

The main objective of this paper is to categorize the available literature (analytical/experimental). The discussion remains descriptive, and the reader is recommended to consult the cited references for specifics on parameters and mathematical models. Three phases were adopted to conduct this literature review: (a) conducting the review, (b) conducting the analysis, and (c) writing up the review.

12p tuetuebinhan000 23-01-2025 3 2   Download

Toyota tundra – new features is a 4.6-liter, 32-valve DOHC V8.This engine uses the Dual Variable Valve Timing-intelligent (Dual VVT-i) system, Direct Ignition System (DIS), Acoustic Control Induction System (ACIS), Electronic Throttle Control System-intelligent (ETCS-i), air injection system and Exhaust Gas Recirculation (EGR) control. These control functions achieve improved engine performance, fuel economy, and clean emissions.

95p endlesslovelp 09-03-2015 75 10   Download

The prediction of the expected long-term performance of concrete exposed to sewage and similar materials can be difficult as it is affected by a large number of parameters. In addition, the deterioration process in concrete is generally slow. The focus of the study was to ascertain the life expectancy of concrete septic tanks located in rural Victoria. In developing the accelerated test method, ASTM C 192, ASTM C 452, ASTM C 1293 and ASTM C 109 standard procedures were adopted wherever possible.

172p runthenight05 01-03-2023 12 3   Download

This thesis presents a pro–active research work motivated by the prospect of the imminent implementation of the regulatory requirement for pedestrian protection, Global Technical Regulation–9 (GTR–9) (United Nations Economic Commission for Europe 1998) in the near future. To meet the performance criteria for pedestrian protection head impact, it is vital to incorporate the required design parameters into the hood design process at an early stage. These main design parameters are architectural and changing them late in the vehicle design process is very expensive and difficult to implement.

244p runthenight05 01-03-2023 15 3   Download

This research project explores the effectiveness of an auditory display prototype for the sonification of internet \(c{o_2}\) emissions to a small user group within their office context. To date, methods do not exist for the reporting of this information to users of personal computing while they perform simple internet enquiries. Underpinning the theoretical development of this project is a focus on auditory displays guided by the concept and forms of auditory displays, together with the auditory perception elements to be considered in their design.

122p runthenight05 01-03-2023 10 3   Download

This research focuses on Fibre Cement Felts (FCF), which is a non-woven textile substrate acting as a conveyor belt for the manufacturing of Fibre Cement Sheets (FCS). Fibre Cement Felts are a valued component required in the manufacturing process of Fibre Cement Sheets, used in construction for today’s building industry. Identifying the key factors that most influence FCF will assist in understanding of the relationship between fibre diameters, carded web, and mechanical bonding.

137p runthenight07 01-03-2023 13 3   Download

The overall aim of this research project is thus to study the concept of integrating a solid-state metal hydride electrode and a unitised regenerative fuel cell into a single system, and investigate its performance as a reversible store for electrical energy.

148p runthenight07 01-03-2023 19 3   Download

The objectives of this research work are: Study the clay intercalation by organic dye and develop a process to produce nanoclay-dye pigment with better stability and good performance; Conduct structural characterization to verify the level of intercalation and stability of clay-dye pigment by using X-Ray diffraction (XRD) and Transmission Electron Microscopy (TEM); Investigate the thermal stability of clay dye pigment using Thermo Gravimetric Analysis (TGA) to reveal the effect of dye intercalation into the clay on improving thermal stability of organic dye; Compound the clay- pigment with ...

141p runthenight07 01-03-2023 10 3   Download

Optimum Flight Trajectories for Terrain Collision AvoidanceThe objective of this research is to introduce a new methodology that computes optimal escape trajectories within a three dimensional digital terrain. It has been established that conducting a pull up manoeuvre may not always be the best option for a pilot to salvage the aircraft in the case of an imminent collision. To prove this further, several simulations were conducted which shows that performing a lateral turn can produce safer trajectories in comparison to a vertical pull up.

155p runthenight07 01-03-2023 12 3   Download

The main objective of this research is to optimize the design of the Tunnel kiln for efficient fuel usage. To achieve that, the temperature distribution from the simulation needs be matched with the desired Tunnel kiln curve found in industry. This objective can be achieved by CFD simulation where temperature, velocity and emission distributions inside the Tunnel kiln can be obtained. Generated temperature distribution can be matched with the industrial curve and by interpreting the curve, efficient design can be suggested.

115p runthenight07 01-03-2023 16 3   Download