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Experiences of Students with Learning Disabilities in Higher Education: A Scoping Review
Background: As the number of students with learning disabilities (SwLD) entering higher education (HE) increases, a need arises to improve the services provided to them by understanding their experiences. This scoping review explores the extent and type of evidence on the experiences of SwLD in HE. Method: The review followed the six stages outlined by Arksey and OMalley. PubMed, Science Direct, EBSCO, ProQuest, and APA PsycNet were searched for primary data, and studies published between January 2012 and July 2022 were included. The following information was extracted and collated from the included studies: author/s, year, location, objective/aim, study design, materials and methods, and major findings. Results: The search yielded 3729 titles and abstracts. Their screening resulted in 26 eligible articles. The review of these articles identified three major themes: (a) academic concerns, (b) psychosocial experiences, and (c) support systems and accommodations. The academic concerns included difficulties in areas such as reading, writing, and spelling. The studies on psychosocial experiences showed that SwLD experience stress, anxiety, and lower self-esteem. The studies on support systems and accommodations indicate that they get academic support, technological support, and extra time for examinations from educational institutions. Conclusion: The SwLD experiences academic and psychosocial challenges during higher studies. However, the existing support systems do not address these challenges, and there is a need for further research in this area. 2023 The Author(s). -
EXPERIENTIAL TOURISM: Nature-based Tourism Trends in India
The rise of experiential tourism in recent years is seemingly gaining momentum. Tourism providers are marketing immersive travel experiences by engaging visitors with the destinations history, residents, and environment. Experience tourism entails immersing oneself in the essence of the destination in its truest sense. Authenticity involving emotions and values is of great importance for tourism marketing. Experiential travel rejects the idea of the traditional visitor experiences and gets back to the roots of travel. Over the last decade, nature-based tourism has become a widespread phenomenon and contributes more than US$120 billion to global GDP. The recent pandemic has additionally stimulated the demand for spending time and nature. Thus, experiential nature-based tourism could play an important role in the sustainable recovery of global tourism. This chapter discusses Indias critical experiential tourism trends through the marketing perspective and provides innovative marketing solutions for nature-based experiential tourism planning and development. Extensive and comprehensive literature has been used in this study to identify and critically reflect on vital nature-based experiences worldwide and the recent trends in the market. 2023 Taylor and Francis. -
Experiment investigations of effect of laminate thickness on flexural properties of GLARE and GFRP laminates
The study focuses on the fabrication of Glass Fiber Reinforced Aluminum (GLARE) laminates and evaluation of their flexural properties. Aluminum 2024 (T3) sheets were used for the fabrication of GLARE laminates along with E-glass fiber in the form of chopped strand mat and epoxy resin. Different thickness of aluminum sheets ranging from 0.2 mm to 3.5 mm was used to fabricate the GLARE laminates. Hand layup technique is used to bond together aluminum sheets and epoxy/E-glass fiber laminates under different configurations. The test specimens were prepared as per ASTM standards, and standard three-point bending test was carried out to evaluate different bending characteristics. An increase of 60% in load-bearing capacity was observed when aluminum sheet thickness was an increase from 0.2 mm to 0.35 mm. Similar The results were compared with similar glass fiber reinforced plastic (GFRP) laminates to analyze improvements, whereas, the maximum deflection of the laminate decreased. There were not many improvements in case of bending strength and bending modulus when aluminum sheet thickness was varied. Fracture surface analysis indicated three modes of failure namely, interfacial delamination, delamination bonding, and fiber breakage. When compared with glass fiber reinforced plastics of similar configuration, a substantial increase in bending strength was observed. 2018 IOP Publishing Ltd. -
Experimental analysis and RSM-based optimization of friction stir welding joints made of the alloys AA6101 and C11000
In the present study, the evaluation of FSW input parameters on output response ultimate tensile strength (UTS) of the friction stir welded AA6101-C11000 joint is in agreement. The response surface methodology (RSM) was adapted for generating the mathematical regression equation to predict the UTS and to develop the FSW parameters to attain the highest UTS of the FSW joints. The central composite design (CCD) method from RSM with five levels and three factors, i.e., tool rotational speed, feed rate, and tool offset used to conduct and minimize the number of tests. During FSW, base sheet cu (hard metal) was stationed on the advancing side (+1 mm, +1.68 mm tool offset) and the base sheet Al (soft metal) on the retreating side (?1 mm, ?1.68 mm tool offset). The radiography studies were accomplished to inspect the internal flaws of the FSW joints (Al-Cu).The XRD and SEM investigation of the ruptured specimens during the tensile test to evaluate the IMCs phase anatomy and fracture analysis. The maximum UTS value measured during the experimental work was 142.69 MPa at 1000 rpm, 40 mm min?1, and ?1.68 mm tool offset. The highest joint efficiency obtained was 82% compared with the AA6101 UTS value. RSM adapted for this work was 92% accurate and satisfactory. 2023 The Author(s). Published by IOP Publishing Ltd. -
Experimental analysis of biofuel produced from fat derivatives of bird and animal as an additive fuel in CI engine
In the present work, an alternative form of biofuel for the Compression Ignition (CI) Engine is generated from inedible disposable chicken skin and pig tallow. The collected resources are heated up to 80C to extract fat and subjected to a trans-esterification process to obtain biofuel. The process resulted in 730ml and 950ml of high viscous biofuel from 1000ml of fat from waste chicken skin (WCS) and pig tallow (PT) respectively. The pure biofuels from WCS and PT have 38.07% and 41.68% higher viscous than diesel. The obtained biofuel is blended with diesel at 10, 20, and 30% by volume. The thermal, physical, and chemical properties of blended fuel are determined and found closer to the diesel properties. The engine tests indicate that the brake power of the B30 blend was decreased by 15.78% while the B10 combination produces 11.02% less power as compared to diesel at full load. The efficiency was reduced by 22.15, 7.59 % for B30, and B10 respectively at full load condition. About 3.9% and 34% of reduction in NOx, 22.5%, 27.5% of reduction in HC emission were recorded for respective blends at the same operating condition. This paper emphasizes on deriving value-added products from waste resources and its effective utilization. The findings from work indicate that the derived biofuel could be used in combination with diesel for the adequate partial replacement of diesel in CI engines without any significant alterations. 2020 International Journal of Renewable Energy Research. -
Experimental and Analytical Study of High-Strength Concrete Containing Natural Zeolite and Additives
The study compares the durability of Natural Zeolite with Metakaolin, Silica Fume, and Fly Ash on high-strength concrete. 300 concrete specimens were tested for compressive strength before and after an acid attack, modulus of elasticity, water absorption, and rapid chloride permeability. 5%, 10%, and 15% of the cement were replaced with cementitious elements while maintaining the same quantity of Natural Zeolite. In this investigation, the water-cement ratio was maintained at 0.35. After 28 days, the specimens were tested for durability. Samples of all mixes were TG/DT and FTIR tested. The optimal percentages of cementitious materials that resulted to the maximum durability enhancements were reported as the study results. Experimental results showed that Natural Zeolite and Metakaolin strengthened the durability of concrete. All the data show that 5% Natural Zeolite with 10% Metakaolin performs well. Good R2 values and appropriate independent variable coefficients suggested that the regression findings for high-strength concrete durability were accurate. The P values of all models were less than 0.005 and the F values were statistically significant and appropriate; therefore, the generated models predict concrete's strength with authenticity. 2022 by the authors. Licensee C.E.J, Tehran, Iran. -
Experimental and finite element analysis of thermal stress on thermal spray coated AISI 304 stainless steel specimen using low cost solid lubricant
The scope of this work is to investigate the thermal stress on the CaF2 coated AISI 304 stainless steel substrate using both finite element analysis and experimental method. The influence of temperature and coating thickness on the thermal stress was investigated by conducting the test at different temperatures ranging from 100C to 1000C and by varying the coating thickness at 250, 350 and 450m. Stoneys equation was then used to investigate the thermal stress analytically and the finite element analysis results were then compared with the analytical results. From the experimental results it was found that the specimen coated with 450m coating thickness has better resistance to thermal stress compared to other samples taken for investigation. The experimental results were then validated to confirm the effectiveness of the coating thickness by conducting a confirmation test using thermal shock test to validate the results experimentally. The samples after the thermal shock test were examined using SEM, revealing numerous cracks, voids and peel off of the coating as the major reason for higher thermal stress on samples coated with 250 and 350m. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature 2023. -
Experimental and finite element studies on the mechanical properties of high-strength concrete using natural zeolite and additives
Addressing high carbon footprints is a critical global problem in cement production. Using environmentally friendly materials has proven to be a solution to environmental challenges. In this study, High-Strength Concrete of M60 is produced with Natural Zeolite and industrial waste materials. The combinations of 5 % zeolite and varying percentages of industrial wastes such as Silica Fume, Metakaolin, and Fly Ash are tested for mechanical properties. The laboratory test data is compared with numerical simulations to assess the accuracy and determine the error percentage for concrete strength predictions. The process involves the development of numerical solutions by ANSYS to predict strength. The developed numerical solution determines the accuracy of identifying the difference between the experimental and numerical data. The present research on the comparison of experimental and numerical data by ANSYS showed the lowest error percentage, which is acceptable for all the strength properties of concrete. 2024 -
Experimental and Theoretical Approach of Evaluating Chitosan Ferulic Acid Amide as an Effective Corrosion Inhibitor
Phenolic acid grafted chitosan has widespread drug delivery applications, as bio adsorbent, packing material, etc., due to its excellent antioxidant and antimicrobial properties. However, for the first time, the anticorrosive efficiency of ferulic acid modified chitosan has been investigated. The prepared chitosan derivative is characterized using spectral methods, thermal analytical methods, surface charge, and particle size analysis. The evaluation of corrosion inhibition potential showed a highest value of 95.96% at 303K. Thermodynamic activation and adsorption parameters endorse a mixed adsorption process involving an initial electrostatic interaction followed by chemisorption. Electrochemical studies gave results which agreed well with the gravimetric studies. Surface morphological studies were performed using contact angle measurements, FESEM, EDAX, AFM, optical profilometric and UV spectral techniques. Computational studies involving quantum chemical calculations, Monte Carlo and molecular dynamic simulation studies, and radial distribution function analysis are further done to validate the experimental results. Graphical Abstract: [Figure not available: see fulltext.] 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG. -
Experimental and Theoretical Investigation of 3-[(2-chlorophenyl)diazenyl]pyridine-2,6-diamine as Optical Limiter
Azobenzenes undergo reversible trans-cis photoisomerization and have been extensively studied as photoresponsive material. In contrast, azopyridines have garnered relatively less attention despite their similar photochemistry. When compared to azobenzene, azopyridines offer more opportunities for material design through hydrogen bonding and coordination chemistry. Here, we report the isomerization for 3-[(2-chlorophenyl)diazenyl]pyridine-2,6-diamine (1od) through an integrative experimental and computational study. Notably, the energy barrier of 1od was significantly lower than that of previously reported azobenzenes. Moreover, we investigated and elucidated the photoisomerization pathway. 1od exhibited high nonlinear absorption, with a nonlinear absorption coefficient (?eff) of 1.31 (Formula presented.) 10?9 m W?1, as determined by Z-scan measurements. The results indicate that 1od has potential applications in optical limiters, which are used to fabricate protective eyewear and safeguard optical sensors from damage. 2023 Wiley-VCH GmbH. -
Experimental Approach and CFD Analysis on Flow Devices
This paper deals with the study of experimental approach and investigation by using computational fluid dynamics (CFD) on various flow devices. An orifice meter, venturimeter and a nozzle meter are the most common type of measuring devices used for rate of flow by creating the differences in velocity and pressure. Pressure drop is an important parameter occurring in these flow devices, which is due to restricted passage of flow, properties, diameter ratio, etc. The focus here is to calculate the coefficient of discharge and other flow parameters to analyze theoretically with the application of Bernoullis equation. The main objective of this paper is to analyze the variations across the sections of orifice meter, venturimeter and nozzle meter. Comparison of results by both experimental and computational methods was clearly understood, and also, the flow level was calibrated by calculating the coefficient of discharge in both the methods. 2021, Springer Nature Singapore Pte Ltd. -
Experimental Augmentation of Heat Transfer in a Shell and Tube Heat Exchanger using Twisted Tape with baffles and hiTrain Wire Matrix Inserts - A Comparative Study
Heat transfer, a mere process of exchange of heat due to a temperature gradient, plays a vital role in industries and domestic applications. Among all the heat exchangers, Shell and Tube Exchanger are used predominantly due to their compact and robust design. For a given design to increase the heat transfer characteristics needs a research investigation. Among all augmentation techniques, a passive method found widely used as it avoids mechanical modification of the existing heat exchanger and addresses only on flow geometry. Twisted tape inserts are extensively used to change the flow geometry of fluid on the tube side. The present research work intended on utilising twisted tape, twisted tape with baffles and hiTrain wire matrix inserts. Experimental investigation reveals that inserts efficiently disturb the tube side fluid flow, in turn, increases pressure drop which increases the fluid wall shear and hence enhances the substantial increase in tube side heat transfer rate. At lower Reynolds number twisted tape with baffles has comparatively higher heat transfer coefficient, and at higher Reynolds, number hiTrain wire has comparatively higher heat transfer coefficient. Friction factor decreases linearly from twisted tape with baffles to hiTrain wire matrix as Reynolds number increases. Published under licence by IOP Publishing Ltd. -
Experimental design for optimization of 4-nitrophenol reduction by green synthesized CeO2/g-C3N4/Ag catalyst using response surface methodology
In this study, the enhancement of catalytic activity of ceria when modified with co-catalysts such as graphitic carbon nitride and silver was established. The material was synthesized using phytogenic combustion method, a green alternative to the traditional preparative routes. The catalyst was characterized using XRD, FTIR, SEM, EDX, XPS and TEM techniques. The synergistic effect of the composite CeO2/g-C3N4/Ag was tested for catalytic reduction of 4-nitrophenol in the presence of sodium borohydride. The reaction was carried out at room temperature without any light source or external stirring. The individual and combined effects of four parameters, viz., concentration of 4-NP, amount of catalyst, amount of NaBH4 and time for the reduction of reduction 4-NP were investigated using Box-Behnken design of response surface methodology (RSM). This statistical model was used to optimize the reaction conditions for maximum reduction of 4-NP. The optimum conditions for the reduction reaction are found to be 0.01 mmol/L 4-NP, 15 mg catalyst, 20 mg NaBH4 and 13.7 min time interval. 2020 Chinese Society of Rare Earths -
Experimental Design of Interoperable Smart Lighting for Elderly Care
Smart Home attains an active role in elderly care. Vision impairments caused by aging makes elders more dependent and affects the circadian rhythm or body clock. Some vision impairments can be improved by providing additional lighting. Smart lighting is the leading solution in providing adequate quality of lighting which helps elders to perform their daily activities independently. Various smart lighting solutions for elderly care are proposed in past and failed to consider about the energy loss due to over lighting. Additionally, the solutions are more independent in nature and not integrable to existing smart home solutions. To provide a solution to these ongoing challenges, an experimental design has been proposed to manage the adequate quality lighting for elderly people by controlling the illuminance and color temperature of the light with a feedback mechanism. Also, this experiment has integrated into a popular smart home platform. The proposed design keeps monitoring the ambient lighting and maintains the room's illumination as required for elderly individuals. The functional behaviors of the experimental design are evaluated using a testbed. The result shows that the proposed design reduces the energy usage more than 50% along with providing adequate lighting for elderly individuals. In addition, this experimental design promises that the proposed method can be easily integrated into any existing smart home solutions with its native scripting framework. 2024 IEEE. -
Experimental evaluation of image segmentation for heart images
The cardiac death is the principal reason of the death in the world.The research work focuses on finding an efficient image segmentation technique for the computer aided detection and also to decrease the noise in the image.The segmentation is implemented with the help of fuzzy C-means clustering along with dual inverse thresholding function and Otsu thresholding.Experimental proof is evaluated with the help of morphological functions and with Gaussian function.The result of the work provides an accurate segmentation for myocardial ischemia in the human heart photo image as well as magnetic resonance imaging. Copyright 2021 Inderscience Enterprises Ltd. -
Experimental instigating a counter cultural film platform in Bangalore /
Moving Image Review & Art Journal (MIRAJ), Vol.7, Issue 2, pp.189-297, ISSN No: 2045-6298. -
Experimental investigation and influence of filling ratio on heat transfer performance of a pulsating heat pipe
Experimental investigation of the two-phase system of a pulsating heat pipe taken into account useful heat transfer In the field of thermal management, many new prospective concepts and techniques have been developed, one of which is the pulsating heat pipe, a classic heat transfer technique. The PHP is constructed from 8 turns of copper tubes with inner diameters of 2 mm, wall widths of 1 mm, and a total length of 5324 mm. The CLPHP uses ethylene glycol as the functioning liquid at different fill proportions of 45 %, 55 %, 65 %, 75 %, and 85 % of its amount. The evaporator section is heated electrically by a plate heater ranging from 120 W to 600 W, and the condenser section is cooled by a continuous flow of cooling water. The results thermal resistance decreases gradually with an increase in heat transfer rate. It is apparent that a lower rate of thermal resistance is by a fill ratio of 55 %. The evaporator temperature is 181.57 C and the condenser temperature is 41.06 C for ethylene glycol measured for calculating heat transfer performance at 600 W, thermal resistance is 0.136 C/W, heat transfer coefficient is 526.45 W/m2-C, and enhanced heat transfer is thus good, exhibiting good improvement at a full percentage of 55 % and when compared with CFD results. 2023 Elsevier Ltd -
Experimental Investigation and Numerical Simulation of Air Circulation in a Non-AC Bus Coach System
Air circulation plays a vital role in the comfort of passengers in a bus, being a non-AC bus without any aid from the air conditioning system. The circulation of air is utterly dependent on the design of the bus and the natural flow of air. However, optimize the flow of air inside the bus, a study on the design of the bus is needed. In this regard, experimental work was carried out to achieve uniform airflow by redesigning the coach into an aerodynamic shape. The openings are provided at the leading edge of the bus to evaluate the best possibility for air to circulate in the bus. Three openings were provided at the leading edge of the bus, the first and second openings were mere openings, and the third opening was fitted with a roof vent providing three different geometric patterns to airflow. The initial boundary conditions were developed by considering that all windows and doors of the bus are closed. The scaling ratio of 1:20 was considered for modeling the bus. The experiments were conducted in the wind tunnel test rig. It was observed from the experimentation that the velocity of the air was considered to be the most influential parameter for the optimal air circulation. The velocities of 21.96 m/s and 22.68 m/s were obtained inside bus. The obtained experimental velocities were validated with results obtained by the Computational Fluid Dynamics (CFD). It was observed that a deviation of 5% for the given velocity of 20 m/s. 2022 Materials and Energy Research Center. All rights reserved.