Experiential Investigation Research Articles

Correction: Experiential investigations for shale–fluid interaction and identification of novel chemical additives as efficient shale swelling inhibitor

Correction: Experiential investigations for shale–fluid interaction and identification of novel chemical additives as efficient shale swelling inhibitor

Experiential investigations for shale–fluid interaction and identification of novel chemical additives as efficient shale swelling inhibitor

Experiential investigations for shale–fluid interaction and identification of novel chemical additives as efficient shale swelling inhibitor

Transformational Educational Leadership Effect On Staff Members Engagement: The Mediating Impact Of Intrinsic Motivation

Staff member’s engagement has been at the core of consideration for top management and scholars who stated that staff member’s engagement can be a key driver of an organization's business success. Many scholars have found in recent researches that a transformational educational leadership approach has a beneficial connection with staff member’s engagement. Therefore, this research oriented to investigate the connection of transformational educational leadership on staff members engagement through the mediating role of figurehead intrinsic enthusiasm. Researchers examine the information from a sample of 338 elevated education staff members working in the elevated educational institutes in Ethiopia by means of structural equation modeling (SEM) and confirmatory factor investigation (CFA) to examine the framed hypothesis. Afterward, the bootstrapping investigation was employed to verify the mediation examine in present research. The investigation manifested that transformational educational leadership approach had considered proficient impact on staff member’s engagement for the mediating role of intrinsic enthusiasm. The impact of transformational educational leadership on staff member’s engagement was found to be totally mediated by figurehead intrinsic enthusiasm. Hypothetically, present experiential investigation contributed to the novel knowledge on the exclusive mediating impacts of figurehead intrinsic motivation on the connections among transformational educational leadership and staff member’s engagement in the Ethiopia. Practically, present research has administrative connotation in the field of governmental administration, leadership and HRM.

Efficient CO2 conversion and organic pollutants degradation over Sm3+ doped and rutile TiO2 nanorods decorated-GdFeO3 nanorods

In this research work, the Sm3+ incorporated and rutile TiO2 nanorods coupled-GdFeO3 nanorods based nanocomposites are successfully prepared and gaged their visible-light photocatalytic activities for CO2 conversion and 2,4,6-trichlorophenol degradation. To this end, our investigation proved, that GdFeO3 and TiO2 nanorods have a wide surface area, high surface-to-volume values, and improved photocatalytic activities as compared to GdFeO3 and TiO2 nanoparticles respectively. Furthermore, the rutile TiO2 nanorods have significant performances as compared to anatase TiO2 nanorods. Based on our experimental and Ab initio approach, it is confirmed that the synergistic doping of Sm3+ interestingly elongated the visible light absorption proficiency via molding surface status and amending the band gap positions. Right after the coupling of rutile TiO2 nanorods performed the dual function of upgrading the charge separation by receiving HLEEs and activating the surface for CO2 adsorption via the photoelectron modulation approach. In contrast to pristine GdFeO3 nanorods, the optimal 4Sm-(GFONR) and 6RT/4Sm-(GFONR) samples showed efficient visible light activities for CO2 conversion and 2,4,6-trichlorophenol degradation. Fruitfully, our experiential investigations are consistent with the Ab initio and theoretical studies. Finally, our current novel findings will provide new feasible routes to synthesize morphology-based GdFeO3 photocatalysts for CO2 conversion and environmental remediation.

TRANSFORMATIONAL EDUCATIONAL LEADERSHIP EFFECT ON STAFF MEMBERS ENGAGEMENT: THE MEDIATING IMPACT OF INTRINSIC MOTIVATION

Staff member’s engagement has been at the core of consideration for top management and scholars who stated that staff member’s engagement can be a key driver of an organization's business success. Many scholars have found in recent researches that a transformational educational leadership approach has a beneficial connection with staff member’s engagement. Therefore, this research oriented to investigate the connection of transformational educational leadership on staff members engagement through the mediating role of figurehead intrinsic enthusiasm. Researchers examine the information from a sample of 338 elevated education staff members working in the elevated educational institutes in Ethiopia by means of structural equation modeling (SEM) and confirmatory factor investigation (CFA) to examine the framed hypothesis. Afterward, the bootstrapping investigation was employed to verify the mediation examine in present research. The investigation manifested that transformational educational leadership approach had considered proficient impact on staff member’s engagement for the mediating role of intrinsic enthusiasm. The impact of transformational educational leadership on staff member’s engagement was found to be totally mediated by figurehead intrinsic enthusiasm. Hypothetically, present experiential investigation contributed to the novel knowledge on the exclusive mediating impacts of figurehead intrinsic motivation on the connections among transformational educational leadership and staff member’s engagement in the Ethiopia. Practically, present research has administrative connotation in the field of governmental administration, leadership and HRM.

Comparative Thermal and Demagnetization Analysis of the PM Machines with Neodymium and Ferrite Magnets

This paper provides computer analysis and experiential investigation of the permanent magnet machines with neodymium and ferrite permanent magnets to discuss the feasibility of utilizing induction machines-oriented equipment for PM machine production. For this purpose, the machines are obtained by replacing the squirrel-cage rotor of the induction motor with the flux-focusing (tangential) and surface-mounted (radial) permanent magnet rotors. Electromechanical parameters of the machines as electromagnetic torque and output power are discussed and compared. The temperatures of the neodymium and ferrite magnets are also calculated at rated current, and short circuit scenarios and the performance of two different cooling systems in minimizing the temperature effect on the machines are investigated. Furthermore, the demagnetization of permanent magnets at various load conditions is also studied. Finally, the results of the computer modeling are validated by the physical prototypes of the machines. The characteristics of the electrical machines under study were calculated using the Simcenter MagNet and Simcenter MotorSolve software packages.

Experiential and numerical investigation of the lateral bearing properties of drilled and post-grouted concrete pile and the its impact factors

Experiential and numerical investigation of the lateral bearing properties of drilled and post-grouted concrete pile and the its impact factors

Spatial and Space-time Clustering of Diarrhoeal Cases among Under-Five Children in Karkala, Karnataka: A Geospatial Analysis

Introduction: Globally, India tops by contributing the maximum number of diarrhoeal fatality. Forecasting the path and spread of diarrhoeal disease is critical due to its multifactorial cause, which needs robust spatial analysis and experiential investigations of communicable disease. Aim: To investigate purely spatial, purely temporal, and spacetime clusters of diarrhoea among under-five children using a Geographic Information System (GIS) in Karkala taluk of the Udupi district of Karnataka, India. Materials and Methods: A retrospective longitudinal study was conducted involving all the primary health centres of Karkala taluk by the investigators, from the Department of Public Health, K S Hegde Medical Academy, Nitte (DU), Mangalore, Karnataka, India. The data on diarrhoea among under-five children was collected for three years, i.e., from 1st April 2015 to 31st March 2018, at the Udupi district health office. A total of 49 village data were obtained, and 3894 under-five childhood diarrhoea were reported during the study period. The annual incidence of childhood diarrhoea at the taluk level was calculated using excel. The spatial, temporal and space-time diarrhoeal clusters were identified using Kulldorff SaTScan software. Geographic Information System, QGIS 3.20.2 software was used to plot the maps. Results: The analysis of the spatial cluster using SaTScan software for three years in the study area identified eight highrisk areas (p-value<0.0001), covering 17 villages. The most likely spatiotemporal cluster region was located at the northern Karkala, and the most-at-risk period was 1st April 2016 to 30th September 2017 {Log Likelihood Ratio (LLR) =114.67 and p-value <0.00001}. The analysis of purely temporal cluster showed that one most likely cluster happened in all villages (LLR= 73.89, p-value <0.001) from 1st April 2017 to 3rd March 2018. Conclusion: The diarrhoea among under-five children at Karkala taluk was not randomly distributed over space and time.

Conceptually integrating a multi-product strategy for the valorization of kitchen waste towards a more sustainable management

Disposal of kitchen wastes (KW) by anaerobic digestion (AD) is popular for many currently running projects, but the discharged residual solid fraction from three-phase separation is challenging the AD process in the real world. To cope with the challenge, a multi-product strategy, including bacterial cellulose (BC) production and vermicomposting, was integrated into the currently running AD process to be a new process; the as-prepared biochar from vermicompost was attempted in AD to promote the digestion performances. Experiential investigations on the multi-product strategy, LCA (life cycle assessment) and economic assessment on the integrated process were performed to clarify the technical compatibility, environmental sustainability, and economic profitability. Results showed that 1.0 t kW (wet basis) yielded 4.5 kg earthworm biomass, 20.0 kg vermicompost, and 0.8 kg BC (dry basis), suggesting the multi-product strategy was compatible to the valorization of residual solid fraction. Cumulative CH4 was promoted by 31.0% via adding as-prepared biochar in AD of liquid fraction from separation and effluent from BC fermentation, indicating the technical compatibility of the techniques of BC production, vermicomposting and AD. LCA demonstrated the newly integrated process reduced the GWP (Global Warming Potential) and AP (Acidification Potential) emission by 40.9% and 130.0%; net output of PED (Primary Energy Demand) increased by 32.8%, suggesting its environmental sustainability was promoted comparing to the currently running process. Besides, 3.0% promotion on the net revenue of the newly integrated process implied the increased profitability. As a result, the newly integrated process will be a step forward towards a more sustainable management on KW.

Experiential investigation on the effect of heavy fuel oil substitution by high sulfur petcoke on the physico-mechanical features and microstructure of white cement composites

The current research paper study the effects of producing white cement using high sulfur petroleum coke (WCPC) instead of using HFO (WCHFO). White Cement production needs huge amounts of thermal units from HFO and it the most consumed energy all over the world. There are many interest to burn alternative energy sources aiming to decrease in combustion cost and secure the surround environment. Current combustion technologies allow the burning of fuel With a high percentage of sulfur such as PC, to have the least environmental damage and generate the least amount of fly ash. HFO contains one third or less of sulfur (S) than high sulfur PC. High concentration of sulfur in white cement/clinker granules cause a series of adverse effects on its applications due to formation of big amounts of anhydrite (CaSO4-insoluble) & aphthitalite (3K2SO4·Na2SO4) and reduce the formation of thenardite (Na2SO4) leaves cracks, endearments and yellowish color for skin coat, painting and decoration applications. High sulfur content in white cement (WCPC) comes from high sulfur in fuel and accordingly increases the setting time, compressive strength, workability and sodium equivalent (Na2OEq) content, while it reduce cement whiteness reflection (Ry) degree. XR, XRD and physical properties of fuels are performed reflected high sulfur and alkali concentration. SEM morphology analysis has been tested showing improving in WCpC microstructure.

Does immiserizing growth exist? Evidence from world’s top trading nations

PurposeThis study aims to motivate the reality that experiential investigation of immiserizing growth has not been performed at large. The key objective of the study is to analyse the empirical existence of immiserizing growth in the real world.Design/methodology/approachTheory of revealed preferences has been implemented for welfare movement by using Laspeyres and Paasche quantity index and for empirical estimations, logistic regression has been applied. The study established panel data of the world’s largest trading nations, including the USA, China, France, Germany, UK, Italy, Japan, the Netherland and Canada. Annual time series data for an extensive time period covering from 1981 till 2017 have been used.FindingsFindings of the Laspeyres and Paasche index reveal that out of nine countries immiserizing growth prevails in five nations and those are Italy, Canada, the Netherland, UK and Japan. The results of panel logistic regression verify the significance of terms of trade on immiserizing growth in all included countries. Separate logistic regression has also been performed on all the five countries from which Italy, Canada, the Netherland exhibit significant results.Originality/valueThis study is a pioneer attempt towards the concept of immiserizing growth. Considering the fact that immiserizing growth is viewed by the majority of the scholars as a theoretical notion, this study attempts to investigate analytically the existence of immiserizing growth with real data set. The impact of terms of trade deterioration on the welfare of the world’s largest trading nations has been focused on the research which is in compliance with the concept of Bhagwati (1958).

Raising the Efficiency of Coagulation of Dispersed Particles by the Action of Ultrasonic Vibrations on Gas-Dispersed Flows in Inertial Dust Collectors

The authors have presented results of experiential investigations of the process of ultrasonic coagulation of dispersed particle in a swirling flow. The investigations were conducted using the proposed and developed test bed implementing a two-stage removal of fi ne particles. At the first stage (agglomeration), the formation of a swirling flow and the ultrasonic pre-coagulation of fi ne particles are ensured. At the second stage, high-efficiency trapping of particles preformed at the first stage is attained using a cyclone. As a result of the experimental investigations, the authors have established the prospects of using a two-stage removal of fi ne particles and have revealed the optimum conditions of ultrasonic action on a swirling gas-dispersed flow that ensure an enlargement of 4.5 times of particles in the range of RM2.5 particle sizes which is the most hazardous for humans.

Experiential investigation of cluster velocity and slip velocity in the CFB riser

Cluster velocity and slip velocity are the important features of cluster hydrodynamics and the statistical analysis was carried out based on the moving direct of the clusters in this work. Lagrange approach was employed to compute the velocity of the clusters which were captured by a high speed camera in a thin 2D fluidized bed. The experimental research results show that cluster velocity can be accurately computed by the Lagrange method. The velocity of the up-moving clusters is slightly greater than that of down-moving cluster. Cluster velocity increases with increasing the gas velocity and most of cluster velocity ranges from −2 to 2 m/s. The smaller clusters have greater cluster velocity and the larger cluster have smaller cluster velocity. Most of the down-moving clusters are present in the near wall region, and the down-moving clusters are about 60–70% of the total clusters. The x-component of cluster velocity is low, ranging from 0.3 to 0.6 m/s. Cluster slip velocity reveals the interaction between the cluster and its surrounding gas, and is an essential parameter of the structure-based model in the gas-solid fluidized bed. The distribution of cluster slip velocity is wider than that of cluster velocity, and they have the similar various trends. A small amount of slip velocity is negative, about 20–30%, for the up-moving clusters, while all of slip velocity is positive for down-moving clusters.

An experiential investigation on the compressibility behavior of cement-treated Indian peat

The rapid population growth and urbanization all over India have created a need for the development of infrastructure which ultimately increases the demand even to utilize the most problematic peats also. Peat is known for its poor load-bearing capacity and high compressibility traits, so any construction undertaken without taking due account of its properties may lead to dreadful consequences. In India, the study in context to peat has been done in a very limited way and which consists mainly of highlighting the zonal occurrence and to some extent evaluating its basic properties only. This paper addresses the efficacy of cement usage on the compressibility behavior of Indian peat. The assessment of the compressibility and consolidation properties of peat treated with different percentages of cement (5, 10, and 15% by weight of dry peat) and curing periods (0 and 14 days) is investigated through one-dimensional consolidation test. Peats collected were of four different ranges of organic content variation (20–76%) covering three different states in the North Eastern Region of India to finally comprehend the effect of varying organic matter in the process of treatment. The laboratory investigation reveals that the Indian peats undergo high compressibility (cc~1.43–3.72), very low rate of consolidation (cv~0.15–0.78 × 10-8 m2/sec), and large creep behavior (cα~0.02–0.07). However, the optimistic outcome observed after cement treatment is the decrease in the compression index (cc), coefficient of compressibility (av), coefficient of volume compressibility (mv), and increase in the coefficient of consolidation (cv). The pre-consolidation pressure (σ/p) is also increased with the percentage of cement content. Further, secondary compression (cα) measured at high stress level is found to be decreased with increasing cement content and finally becomes negligible. The effect of curing days brings a further conducive change in the compressibility and consolidation characteristics of cement-treated peat. Further, the presence of the high organic matter hinders the reaction process between peat and cement, thus affecting the rate of hardening process and eventually the overall improvement. Finally, the test results are complemented by pH, electric conductivity (EC), and Fourier transform infrared (FTIR) spectroscopy analyses, which provide insight into the mechanism involved between peat and cement. The increased loss of mass that occurs after cement addition, studied through thermo gravimetric analysis (TGA), indicates the formation of new cementitious materials that are responsible for the overall improvement of Indian peat. Since in India, this kind of study is totally new thus it will help engineers practically to handle peat of this region in a far better way eventually bringing a sort of understanding over the construction-allied issues beforehand.

An experiential investigation into the embroidery practices of the Chernobyl Babushka

This article contextualizes and personalizes a cohesive and cogent line of enquiry into the textile practices of the Babushkas of Chernobyl through empirical research centred upon observing, recording and gathering testimonies and histories in the field. Chernobyl, as place (or rather non-place), is the site of the world’s worst nuclear accident of 1986. Post-accident, 91,200 people were evacuated from areas around Chernobyl and it is now deemed to be uninhabitable. At the time of this research, there were 128 people remaining, their legacy the declining remains of a forgotten community, with a loss of their strong textile heritage. The ‘Embroidery as a Language’ project was implemented in order to discover how a common interest, i.e. embroidery, within the context of action research methodology could be used to encourage stronger connections and understandings between transnational communities and as a consequence promote the sharing of relevant and new information about regional embroidery, in turn preserving the past and taking it forward into the future. Alongside building an archive, the preservation of their history through personal experiences and narratives is paramount and this article reflects the focus on the self-settlers of Chernobyl and their embroideries as an ongoing initiative and an experiential poignant investigation that has developed over the past four years and during my ten separate visits to the Chernobyl Exclusion Zone.

Effect of addition of GO Nanoparticles on the tensile properties and deformation temperature of Sn-3.5Ag-0.7Cu lead free solder alloy

The advantage of lead-liberated welding is the melting point of Sn-Ag-Cu (SAC) alloys in the Sn-rich alloy. The nanoparticles welding with lowering melting point near to the Sn-Pb eutectic point is found more interest. Latterly, the phase persistence of nanoparticles has been the project of massiveness of academic and experiential investigations. In this study, graphene nanoparticles (GNPa) with 0.3 percentages wt.% were successfully added into Sn-3.5Ag-0.7Cu lead-free solder. The effects of graphene nanoparticles (GNPa) on the microstructure, tensile properties, wettability, corrosion resistance, and hardness were subsequently investigated. The results show that graphene nanoparticles (GNPa) refine the microstructure with different features and enhance the wettability efficiently. Stress-strain tests discover that the combined solder with 0.3 wt.% GNPa exhibits about 15% and 25% enhancement in tensile strength and hardness, respectively. In addition, the total elongation of Sn-3.5Ag-0.7Cu is 22% greater than that of the pure Sn-3.5Ag-0.7Cu+0.3GO solder alloy. The enhancing mechanism of 0.3GO on the achievement of combined samples is also studied. Stress strain experiments were inspected under different five strain rates ranging from 5.4x10-5 S-1 to 2.9x10-3 S-1 and different five temperatures extended from R.T. (298K) to 383 K for two alloys. The activation enthalpy suggests that the dominant mechanism is the grain bounding diffusion (GBD). Also, X-ray diffraction examination display the permanence of both β-Sn rich phase and the intermetallic compound Ag3Sn and very little particles or residue from the intermetallic composition γ-In Sn4.

An Experiential Investigation of Tax Professionals' Contentious Interactions with Clients

ABSTRACTThis paper is a descriptive exploration of the under-researched area of contentious interactions between tax professionals in public accounting and their clients. We collect data in two waves. First, we employ an experiential questionnaire (EQ) to obtain rich, detailed data about actual contentious client interactions experienced by tax professionals. Second, we conduct a follow-up survey based on the results of the EQ to provide additional insight. We find that tax professionals often employ arguments relating to possible taxing authority (e.g., Internal Revenue Service) actions and the technical merits of the tax position to persuade their clients. We also provide additional details about the types of contentious issues tax professionals experience and how these issues are resolved. Importantly, our results point to a need for more training on how to deal with contentious issues, as most professionals strongly believe training is needed, even though few have actually received training.Data Availability: Contact authors.

An empirical and experiential investigation into the contemplation of joy

The research was generally motivated by a dearth of studies on joy, and particularly inspired by a book of joy celebrating the inter-spiritual dialogue between the Dalai Lama and Desmond Tutu. Its aim was to investigate whether the direct contemplation of joy would be associated with improvements in psychophysiological coherence, spirituality and various positive emotions and feelings. Integrative quantitative and qualitative findings emerging from a small pilot study, including a convenience sample of six participants with a mean age of 42 years and age range of 25–69 years, supported the research hypothesis. Significant quantitative increases in psychophysiological coherence, spirituality and positive feelings were coherently and consistently supported by participants’ individual and collective experiences. Integrative discussion amplified the paradoxical theme of joy through suffering in human emotional and spiritual life.

Experiential Investigations on the Temperature Contours of Different Zones in Friction Stir Welded Plates of Aa6061 and Az61

Friction stir welding process is a novel study; this study proposes a heat input during the FSW process to reduce the effect of heat - induced in different zones like HAZ, THAZ and MHAZ. During FSW process heat is generated due to motion of tool which in term fuses the work specimen and due to stirring action the work-piece is welded. A parametric analysis has been carried out in order to examine the temperature distribution along the weld of AA6061 and AZ61 The two process parameters i.e. transverse speed and rotational speed are varied and the temperature profile are drawn and compared with experimental work. In additional to this the effect of these parameters on heat loss has also been scrutinized which facilitates in optimizing FSW process.

Digital matter as interdisciplinary commodity

<p>With the current exponential growth in the sector of Spatial Data Technology and Mixed Reality display devises we experience an increasing overlap of the physical and digital world. Next to making data spatially visible the attempt is to connect digital information with physical properties. Over the past years a number of research institutions have been laying the ground for these developments. In contemporary architecture architectural design the dominant application of data technology is connected to graphical presentation, form finding and digital fabrication.<br />The <em>arc/sec Lab for Digital Spatial Operations </em>at the University of Auckland takes a further step. The Lab explores concepts for a new condition of buildings and urban patterns in which digital information is connected with spatial appearance and linked to material properties. The approach focuses on the step beyond digital re-presentation and digital fabrication, where data is re-connected to the multi-sensory human perceptions and physical skills. The work at the Lab is conducted in a cross disciplinary design environment and based on experiential investigations. The arc/sec Lab utilizes large-scale interactive installations as the driving vehicle for the exploration and communication of new dimensions in architectural space. The experiments are aiming to make data “touchable” and to demonstrate real time responsive environments. In parallel they are the starting point for both the development of practice oriented applications and speculation on how our cities and buildings might change in the future.<br />The article gives an overview of the current experiments being undertaken at the arc/sec Lab. It discusses how digital technologies allow for innovation between the disciplines by introducing real time adaptive behaviours to our build environment and it speculates on the type of spaces we can construct when <em>digital matter </em>is used as a new dynamic building material.</p>