Technical Configuration Research Articles

Gamification for Studying Mathematics by E-Learning

The difficulties of studying mathematics in this digital age call for solutions that might boost student engagement and motivation. To make learning more dynamic and interesting, it is suggested that a gamification methodology that combines game simulation with gamification is applied. In order to enhance mathematics instruction using an online learning platform. A thorough grasp of the difficulties associated with studying mathematics. To complement the learning objectives for mathematics, the gamification design includes selecting question types, constructing game situations, and producing visual components. This research creates a gamification paradigm using the Quizizz gaming application. The research focuses on the case of IKPIA Perbanas Jakarta for mathematics courses, which has the primary objective of optimizing mathematical learning through the concept of gamification. The researcher used the Dick and Carey development model, which has 10 phases from requirement identification to assessment, to create this learning model. The implementation of the Quizizz application and the gamification approach in an online learning environment occurs at the development stage. Technical configuration, application testing, and modifications based on preliminary feedback are all part of the implementation process. The success of the gamification technique in raising students' motivation and comprehension of the mathematics content was then assessed. Researchers used this helpful gamification to determine suitable designs for delivering learning content. Gamification for mathematics education is also very practical. In education, gamification by Quizizz as an application for gamification only supports but cannot replace the position of teachers and books. Mathematical learning devices with gamification are effective because they have met the classification very well at 79.17% and 20.83%, respectively, at an accuracy rate of 95.83%. Research has limited problems related to being carried out only in the IKPIA Perbanas Jakarta environment, which has students in semester one who have the characteristics of technology generation with the application of gamification that is integrated into the e-learning of Perbanas. The value of this research is the use of gamification for students studying in higher education and integrated into the Learning Management System (LMS).

Development of a stand-alone photovoltaic (PV) energy system with multi-storage units for sustainable power supply

The sizing of the energy components is essentially designed to prevent outages and ensuring the reliability of the power supply. This paper focuses on the development of a stand-alone photovoltaic/battery/fuel cell power system considering the demand of load, generating power, and effective multi-storage strategy using a probabilistic sizing algorithm. A computer program was developed and used in the design of component sizing configuration of a stand-alone power system that comprises of a photovoltaic generator (PV), battery, water electrolyzer, a storage gas tank, a fuel cell, and an inverter for a reliable power supply. This program manages the energy flow through the various components of a stand-alone PV/battery/fuel cell power system and provide an optimal technical configuration. The optimum system configuration of a residential building with daily power demands of 69 kWh/day energy consumption is composed of PV arrays resulting in total rated power of 15 kW, 16 units of 6 V, 225 Ah battery bank, 5.5 kW fuel cell, 5.5 kW Water Electrolysis, 16.5 kg hydrogen tank, and a 5.5 kW inverter. Based on the simulation results conducted, it was shown that the sizing and development of a stand-alone PV/battery/FC energy system have been achieved with system reliability (loss of power supply equal to zero). This program could be used as a power monitoring and control system for a stand-alone PV/battery/fuel cell power system.

Enhancing Borehole Hydraulic Performance: Integrating Technological Upgrades into Borehole Design and Construction Case Studies of Unconsolidated Aquifers in Israel

In recent years, significant modifications and improvements have been instituted in the technical configuration of substituted boreholes compared with old boreholes. Augmenting the production capabilities of individual boreholes and borehole fields has notable engineering and economic implications. Regrettably, altering the composition of the aquifer lithology and its inherent hydraulic properties remains beyond our control. Consequently, the augmentation of extraction capabilities from individual boreholes hinges upon the implementation of technical enhancements in drilling methodologies, borehole design, and ultimate borehole structure. This phenomenon is elucidated through illustrative instances drawn from two distinct aquifer basins. The substituted boreholes were drilled within the same yard, to equivalent depths and into lithological formations similar to those encountered in the old boreholes. The strides made in borehole structural technology bear remarkable significance in influencing the outcomes of pumping tests, with a specific emphasis on the estimation of aquifer loss (B) and well loss (C) coefficients. These advancements substantially contribute to heightened well efficiency, elevated specific yield, and diminished dynamic drawdown. Our extensive professional expertise prompted us undertake a qualitative ranking of the constituent technical elements based on their relative significance and ensuing impact on the improvement of hydraulic parameters and pumping efficiency. The prioritization of significance manifests as follows: screen length, gravel pack composition (Glass beads or sorted quartz gravel), screen diameter, percentage of screen open area, and screen material composition. This article assumes a distinctive and pioneering character as it constitutes a primary endeavor to comprehensively investigate in parallel both the technical conception and construction of boreholes and their subsequent hydrological performance. The overarching message gleaned from this study underscores that the infusion of innovation into borehole design and construction can serve as the pivotal determinant separating a borehole characterized by modest hydraulic performance from one characterized by exceptional hydraulic performance.

Spatial-successive transfer of virtual scarcity water along China's coal-based electric chain

Spatially unbalanced energy supply and demand drive energy transfer. However, the spatial impact of energy transfers on water resources throughout the energy chain remains unexplored. This gap is largely a result of the difficulty in modeling successive transfers of virtual scarcity water (VSW). Thus, a more detailed approach than single or discrete transfer modeling is required. Here, we integrated the water footprint, water stress index, and multi-flow and multi-node models into an analytical framework for a coal-based electric chain (CBEC) to link discrete VSW transfers owing to coal transport and electricity transmission. A case study in China was modeled to illustrate the building mechanism of successive VSW transfers along the CBEC. Our model shows that interprovincial coal transport leads to a VSW transfer of 280.95 Mm3, 8.8 % of which was inherited by a VSW transfer of 388.18 Mm3 for interprovincial electricity transmission. The two-stage transfer results in a 451.42 Mm3 of difference in provincial VSW and the water scarcity footprint. We propose to promote technical-level strategies of cleaner production and technical configuration adjustment, management-level patterns of energy supply chain optimization and power source diversification, and market-level incentives of interprovincial compensation and resource coordination to enhance energy-water co-benefits.

Early Experiences of Integrating an Artificial Intelligence-Based Diagnostic Decision Support System into Radiology Settings: A Qualitative Study.

Artificial Intelligence (AI) based clinical decision support systems to aid diagnosis are increasingly being developed and implemented but with limited understanding of how such systems integrate with existing clinical work and organizational practices. We explored the early experiences of stakeholders using an AI-based e-learning imaging software tool Veye Lung Nodules (VLN) aiding the detection, classification, and measurement of pulmonary nodules in computed tomography scans of the chest. We performed semi-structured interviews and observations across early adopter deployment sites with clinicians, strategic decision-makers, suppliers, patients with long-term chest conditions, and academics with expertise in the use of diagnostic AI in radiology settings. We coded the data using the Technology, People, Organizations and Macro-environmental factors framework (TPOM). We conducted 39 interviews. Clinicians reported VLN to be easy to use with little disruption to the workflow. There were differences in patterns of use between experts and novice users with experts critically evaluating system recommendations and actively compensating for system limitations to achieve more reliable performance. Patients also viewed the tool positively. There were contextual variations in tool performance and use between different hospital sites and different use cases. Implementation challenges included integration with existing information systems, data protection, and perceived issues surrounding wider and sustained adoption, including procurement costs. Tool performance was variable, affected by integration into workflows and divisions of labor and knowledge, as well as technical configuration and infrastructure. These under-researched factors require attention and further research.

The Tecan SiLA2 SDK: A royalty-free, open-source framework to develop SiLA2 servers and clients.

Many devices in a laboratory only have proprietary interfaces. Integrating them into an automation platform such as a Robotic Liquid Handler (RLH) thus usually requires upfront technical configuration and often dedicated software development. In this paper, we present the Tecan SiLA2 SDK, a BSD-3 licensed, royalty-free open-source framework on the.NET platform that makes it very easy for developers to implement the open SiLA2 standard: A developer only has to specify a dedicated automation interface, annotate it with informational constraints such as units or MIME-constraints and then the code required to expose implementations of this interface through SiLA2 can be generated. To validate the applicability and the savings in terms of integration efforts, we conducted multiple case studies. First, we analyze the integration of the Tecan Spark microplate reader into a lab execution system (LES), allowing us admittedly rough comparisons of device integrations using SiLA2 vs. the previous proprietary interface. Next, we analyze the integration of a RLH into the voice control software LabVoice, demonstrating the flexibility of integrations made possible through SiLA2. Lastly, we review the integration potential of liquid handling hardware into custom control softwares using a semi-automated exposure of the Tecan MAPlinx software platform through SiLA2.

Early experiences of integrating an artificial intelligence-based diagnostic decision support system into radiology settings: a qualitative study.

Artificial intelligence (AI)-based clinical decision support systems to aid diagnosis are increasingly being developed and implemented but with limited understanding of how such systems integrate with existing clinical work and organizational practices. We explored the early experiences of stakeholders using an AI-based imaging software tool Veye Lung Nodules (VLN) aiding the detection, classification, and measurement of pulmonary nodules in computed tomography scans of the chest. We performed semistructured interviews and observations across early adopter deployment sites with clinicians, strategic decision-makers, suppliers, patients with long-term chest conditions, and academics with expertise in the use of diagnostic AI in radiology settings. We coded the data using the Technology, People, Organizations, and Macroenvironmental factors framework. We conducted 39 interviews. Clinicians reported VLN to be easy to use with little disruption to the workflow. There were differences in patterns of use between experts and novice users with experts critically evaluating system recommendations and actively compensating for system limitations to achieve more reliable performance. Patients also viewed the tool positively. There were contextual variations in tool performance and use between different hospital sites and different use cases. Implementation challenges included integration with existing information systems, data protection, and perceived issues surrounding wider and sustained adoption, including procurement costs. Tool performance was variable, affected by integration into workflows and divisions of labor and knowledge, as well as technical configuration and infrastructure. The socio-organizational factors affecting performance of diagnostic AI are under-researched and require attention and further research.

An evaluation of scintillation index in atmospheric turbulent for new super Lorentz vortex Gaussian beam

Super Lorentz vortex Gaussian beam (SLVGB) is propagated via the turbulent atmosphere parameters. The benefit key of the SLVGB wave model is that the unlimited bandwidth wave and a spherical wave are involved. Additionally, Huygens Fresnel integral was used for schoolwork to study the propagation of SLVGB in a slant direction via a moderate turbulent medium. On the other hand, applying the crude international telecommunication union (ITU-R) model possible. Moreover, the Kolmogorov turbulent power spectrum model is applied, and the source field is dispersed by the zenith angle to the receiver plane. Additionally, examine the contour of the source field and the SLVGB intensity. To investigate various parameters such as source size, mode, scintillation index, topological charge, and others that are associated with the beam of super Lorentz vortex Gaussian are entirely understood, the outcomes were examined, and obtained other references to build the beam of slant path propagation in turbulent; the form constants are especially in comparison and matching. Our graphical findings indicate that the parameters happened randomly in the scintillation index and intensity of the SLVGB, resulting in a novel beam technical configuration. To summarize, this article is advantageous for remote sensing and uses an optical communications system and laser applications.

Substantiation of the protection system’s technical outline for the aerospace objects

During their operational time, spacecraft are exposed to numerous factors, which are specific to the space environment. Spacecraft designing is a complex scientific and technical problem, which solution necessarily requires taking into account the possible effect of these factors on the structural elements and systems of the vehicle, including protective means in its concept and ensuring its functioning in the expected operational conditions. This paper presents a review of the main space environment factors, which affects the spacecraft, defines global trends in the protection systems’ development and substantiation of the perspective protection system’s technical configuration.

Сравнительная оценка энергетической и экономической эффективности парокомпрессионных тепловых насосов при модернизации крупного химического и нефтеперерабатывающего производства. Часть 1

The question of the feasibility of increasing the energy efficiency of large chemical and oil refining industries by replacing furnace heaters of process heat carriers and raw materials with vapor compression heat pumps is considered. An analysis of the relationship between the technical configuration of vaporcompression heat pumps, the operating parameters of their operation (determining the value of the energy conversion coefficient) and the ratio of the cost of various energy carriers is carried out. The presented results of a comparative analysis of the energy efficiency of various options for replacing a furnace with a vapor compression heat pump reflect the decisive influence of the technical level and design configuration of a vapor compression heat pump on the choice of the preferred upgrade option. However, a significant difference in commercial energy prices significantly changes the preferred ranking of these options.

Optimal Mini-grid for Rural Electrification: A Case Study of Sekoukou-Niger

The electricity access rate in Niger is one of the worst in Sub-Saharan Africa and is an issue of paramount importance to the Government of Niger. This energy insecurity has negatively affected industrialization and developmental plans, making Niger one of the poorest countries in the world. With a large landmass and several pockets of habitation in Niger, mini-grids remain the optimal way of providing electricity to people living in rural areas. Nigerienne Agency for the Promotion of Rural Electrification (ANPER), which is the institute responsible for rural electrification, currently operates about 110 diesel-powered mini-grids in Niger. With global warming looming, the operation of these diesel generators is not only expensive but also has an adverse effect on the environment. This paper seeks to analyze the techno-economic feasibility of a hybrid system for rural electrification in Niger with Sekoukou village as a case study. Load assessment, component technical configuration and component cost are simulated in HOMER software as objective functions to find the optimal size and cost. Results show that the most economical and efficient system for mini-grid operation in Sekoukou in Niger, is the generator-photovoltaic (PV) hybrid mini-grid which produces a levelized cost of energy of $0.271. A load shifting approach is applied to the existing load profile, which further reduces the levelized cost of energy from $0.271 to $0.177. This hybrid mini-grid system coupled with the load shifting approach would help improve the village’s ability and willingness to pay for electricity.

AWARE-Light: a smartphone tool for experience sampling and digital phenotyping

Due to their widespread adoption, frequent use, and diverse sensor capabilities, smartphones have become a powerful tool for academic studies focused on sampling human behaviour. While packing many technological advances, the need for researchers to develop their own software packages in order to run smartphone-based studies has resulted in a clear barrier to entry for researchers without the financial means, time, or technical knowledge required to overcome this technical barrier. We present AWARE-Light, a new smartphone application for data collection from study participants, which is accompanied by a website that provides any researcher the possibility to easily configure their own study. To highlight the possibilities of our tool, we present a research scenario on digital phenotyping for mental health. Furthermore, we describe the methodological configuration possibilities offered by our tool, and complement the technical configuration possibilities with recommendations from the existing literature.

Technical advances for measurement of gas exchange at the whole plant level: Design solutions and prototype tests to carry out shoot and rootzone analyses in plants of different sizes

To measure gas exchange at the whole plant (WP) level, design solutions were provided and prototypes of gas-exchange systems (GESs) were tested to carry out shoot and rootzone analyses in plants of different sizes. A WP-GES for small herbaceous plants was tested on the ability to maximize the net assimilation rate of CO2 in lettuce plants grown either under blue-red light or upon full spectrum artificial light. A WP-GES for large woody plants was tested during an experiment describing the drought stress inhibition of grapevine transpiration and photosynthesis. Technical advances pointed to optimize: i) the choice of cuvette material and its technical configuration to allow hermetic isolation of the interface shoot-rootzone, to avoid contamination between the two compartments, and to allow climate control of both shoot and rootzone cuvettes, ii) accurate measurements of the mass air-flow entering both cuvettes, and iii) an adequate homogenization of the cuvette air volume for stable and accurate detection of CO2 and H2O concentration in cuvettes before and after CO2 and H2O contamination of the air volumes exerted by plant organs.

Knowledge Management and Dynamic Capabilities: A Digital Embracing of Interrelated Processes

Exploration and exploitation are the main processes that work concurrently to achieve an organisation's evolution and success. Knowledge Management (KM) and Dynamic Capabilities (DCs) are significant fields that share these processes. The application of exploration and exploitation processes is still implicit in organisations, and it is not formally represented in technical configuration levels. Mapping these processes to Information technology (IT) creates an advanced robust translation of their use. It also identifies a tangible role for KM and DCs. The idea of deconstructing dynamic capabilities into three levels has been adopted in this mapping. Levels are high-order learning capabilities with the highest exploration learning activities, first-order ordinary capabilities with the highest exploitation learning activities, and lower-order functional capabilities, intermediate between both levels. The digital embracing of the exploration and exploitation model has been proposed to translate all levels of capabilities into different digital configurations. Automated functions of search/browse, create/add, modify/update, remove/delete and read/revise are utilised to present these digital configurations in this model. Search/browse and create/add reflect the higher-order level. Modify/update and remove/delete mirror the intermediate level. Read/revise matches the first-order level. These IT configurations are simple and would be sufficient to assess exploration and exploitation processes. It can also support a new vision for measuring organisational ambidexterity. A near-future case study of an educational institution will be accomplished to evaluate this model. Two main domains, which involve internal systems (strategies, policies, and regulations) and educational materials, will be assessed with their e-resources and the use of the proposed digital functions that represent exploration and exploitation. A quantitative approach using an online survey will be used in this evaluation. The survey will be distributed to academics with administrative positions in all institution departments. The findings of this evaluation would expect to assess the extent of using online search in finding and creating new e-resources which present the two nominated evaluation domains. It would also appraise updating, deleting, and reading available e-resources according to these domains' new requirements or traditional proceeded routines. 

On the effect of dose delivery temporal domain on the biological effectiveness of central nervous system CyberKnife radiosurgery applications: theoretical assessment using the concept of biologically effective dose

Objective: The diversity in technical configuration between clinically available radiosurgery systems, results in accordingly diverse treatment times for the same physical dose prescription, spanning from several min to more than 1 h. This, combined with evidence supporting the impact of dose delivery temporal pattern on the bio-effectiveness of low-LET radiation treatments, challenges the ‘acute exposure’ assumption adopted clinically to estimate the biological outcome of a given treatment scheme under the concept of biologically effective dose (BED). Approach: In this work, the treatment plans of 30 patients underwent CyberKnife radiosurgery for vestibular schwannoma (VS), prescribing a marginal dose of 13 Gy to the tumor, were retrospectively reviewed and the corresponding dose distributions were resolved in the temporal domain. For this purpose, the dose delivery timeline for each treatment was calculated based on relevant treatment plan data and technical specifications of the CyberKnife system, while dosimetry data were independently acquired on a CT-based digital model of each patient using an in-house developed dose calculation algorithm. Main results: Results showed that CyberKnife delivers highly inhomogeneous dose rate distributions in the temporo-spatial domain. This influences the delivered BED levels due to alterations in the sublethal damage repair (SLR) occurring within the treatment session. Using a BED framework involving SLR effects, it was shown that each physical dose iso-surface is associated with a BEDslr range. For the patient cohort studied, a typical range of 2%, with respect to the mean BEDslr value was found at 1σ. Significance: The marginal BEDslr delivered to the tumor by the prescription dose iso-surface deteriorates with treatment time, involving both beam-on time and beam-off gaps. For treatment time, T, between 21 and 50 min, this can be expressed by Compared to the acute exposure approach, a BED ‘loss’ of 21% is associated with the delivery of 13 Gy to the VS-tumor in 35 min.

Energy-saving cost-effectiveness analysis of improving engine thermal efficiency and extending all-electric range methods for plug-in hybrid electric vehicles

Improving the engine peak thermal efficiency (Method 1) and extending PHEV’ all-electric range (Method 2) are the main methods to improve the fuel economy of PHEVs after the technical configuration and energy management strategy are determined. In this paper, the technology evaluation model of the powertrain (TEMP) for PHEVs is built to study the two method’s influencing mechanisms on the fuel economy and the corresponding energy-saving cost-effectiveness. The results show that Method 1 can reduce the PHEV’s fuel consumption in charging-sustaining (CS) mode and reduce their comprehensive fuel consumption (CFC). The fuel consumption for PHEV-49%-50 (the peak engine thermal efficiency is 49%, and the all-electric range is 50 km) in CS mode could decrease by 23.5% compared to PHEV-37%-50, and the CFC could then decrease by 23.3%. While Method 2 increases the PHEV’s fuel consumption in CS mode. The mechanism of CFC reduction results from the diluting effect of the progressively stronger all-electric range on the fuel consumption of CS mode. The fuel consumption for PHEV-37%-90 in CS mode would increase by 2.0% compared to PHEV-37%-50, while the CFC could decrease by 49.6%. Under the Business-as-Usual scenario, the cost-effectiveness of the Method 1 is higher than the Method 2 when the DMC is lower than 19,120$, but then the opposite happens. The increase of battery energy density and the decrease of battery unit DMC will further enhance the cost-effectiveness advantage of Method 2. This study can guide automotive manufacturers to design the PHEVs’ energy-saving technologies and support the government in formulating and revising the policies and standards about PHEVs.

Effects of independent magnetic fields in the very low frequency range elf generated by selected elements of an electric traction unit on the ambient environment and electronic systems

The article presents research results and issues related to of magnetic component of electromagnetic field on the environment and electronic systems used in the electric traction unit. The electronic systems used and built into an electric power unit are operated in a wide variety of environmental conditions. Electrical and electronic systems with different purposes coexist on the vast railroad area, and an important operational problem, apart from environmental changes in which these technical objects are operated, is also the issue of external and internal electromagnetic compatibility. Depending on the extent of the railroad area, the intentional or unintentional emission of electromagnetic fields over a range of frequencies, the construction, technical configuration and method of ensuring electromagnetic compatibility for the electrical and electronic systems in use and electronic systems in use are different. It is necessary to skillfully and appropriately use all measures included in the electromagnetic compatibility pyramid to ensure the appropriate level of robustness, immunity and susceptibility of the above mentioned systems. Due to the impact and propagation of electromagnetic waves in the railroad environment, individual frequency bands of interfering signals should be considered separately for the whole spectrum of interfering signals. The article presents the results of research on the generated magnetic fields from the very low frequency (ELF) range by electric power units. Diagnosing the electromagnetic environment over the entire frequency range enables the realization and proper protection of the electrical and electronic systems used in an electric power train from the effects of unintended interference. Knowledge of the parameters of interfering signals - e.g. amplitude, frequency range, spectrum, etc. - will enable designers of electrical and electronic train systems systems to properly protect these facilities from adverse environmental conditions.

Power dynamics in organisations and the role of information systems

Power dynamics in organisations and the role of information systems

Techno-economic analysis of appropriate flexibility portfolio for distribution system operators

For addressing the intermittence of distributed energy resources, which are usually based on renewable resources, distribution system operators (DSOs) require sufficient flexibility. However, since the required flexibility keeps changing, DSOs face difficulties in determining the appropriate amount and portfolio of flexibility for each epoch. In this work, on the basis of the flexibility required for each epoch, a methodology for designing a DSO's flexibility portfolio was developed by considering the technical configuration and resource composition of the distribution region.

Architecture of Distributed Control System for Gearbox-Free More Electric Turbofan Engine

This article presents the development of the electric turbofan engine in distributed architecture with a design thrust in the range of 3 to 7.5 and from 7.5 to 30 kN for small and medium-sized unmanned aerial vehicles. The engine subsystems are considered as separate smart modules with a built-in control system, exchanging data via a digital channel with the central engine control and diagnostics unit. The key smart engine units are combined in the following subsystems: starter and turbine generators, oil pumps, actuator of guide vanes, fuel pumps, fuel metering unit, control and diagnostic unit. All pumps and guide vane actuator are electrically driven. Control and monitoring signals are transmitted via a digital bus. Functional and reliability analysis and the technical configuration design of each subsystem are presented. Based on analysis of the architecture of distributed control systems for a gearbox-free electric engine, different configurations of described subsystems are proposed.