Miracle-dz/UniFAR-FTUs huggingface dataset:
A behavioural view of the decision for capability investments : the solar PV industry in Taiwan

This research examines the role of framing in the process of decision-making for new capability investments under conditions of policy and technological uncertainty. I argue that framing can explain the decision to exploit current capabilities, but is not sufficient to explain the decision to explore new capabilities. This research discriminates between “frames” and “framing” in the investigation: whereas “framing” is the process of constructing the meaning of the decision problem, “frame” refers to a specific perspective adopted by the decision makers. I develop a three-level research design: the industry-level analysis adopts the approach of eliciting heuristics to identify general patterns. The firm-level examines sources of variation and causal complexity by comparative case analysis. The decision-maker level investigates the influence of senior managers’ professional experience using a scenario evaluation approach. Three observations from the case study of Taiwanese solar PV firms: firstly, systematic patterns are found in the process of framing environmental uncertainty and attributing the causes of the decision problem of capability investments. Secondly, whilst differentiated framing exists and corresponds to selective attention; such a difference is not necessarily associated with different choice pattern. Finally, the loosely coupling framing and choices leads to the speculation that the role of deliberate practice, rather than framing has a stronger influence on the decision to explore. This research illustrates that the capabilities investment decision is not a single event but a complex process. While the stylised psychological principles explain the heuristic judgments, the influencing factors of an organisational decision are interdependent and temporally connected in the decision context. I argue that the problem of framing lies in prohibiting the alterative frame. Therefore exploration needs to be deliberately sought by the specially designed practice. This research contributes to understanding the relationship between behavioural view of descriptive analysis and prescriptive view of procedural rationality in the decision- making process.
Human resource planning for university teaching system

Human beings are considered as the most vital, crucial, volatile and unfathomable resource that any organization uses. In the event of the organization failing to place and direct human resource in the right areas of any activity, be it a university teaching system, business/production house serious inefficiencies are likely to occur. In order to achieve this, the co-ordination of demand and supply is necessary, coupled with monitoring and assessment of productivity and technological changes. Staff moves around the organization in a variety of flows. It is not only difficult but also impossible to track and monitor these movements/flows for a fairly large organization without mathematical modelling. This paper makes use of the technique called Markov Chain Analysis in a University Teaching System. The entire mathematics used in the paper has been embedded in the application software developed for the purpose. The HR manager with no background of mathematics can use the software and get answers to the typical HR planning questions.
Supply Chain Management: Strategy, Planning, and Operation

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An integrated design approach to power systems : from power flows to electricity markets

Power system is at the brink of change. Engineering needs, economic forces and environmental factors are the main drivers of this change. The vision is to build a smart electrical grid and a smarter market mechanism around it to fulfill mandates on clean energy. Looking at engineering and economic issues in isolation is no longer an option today; it needs an integrated design approach. In this thesis, I shall revisit some of the classical questions on the engineering operation of power systems that deals with the nonconvexity of power flow equations. Then I shall explore some issues of the interaction of these power flow equations on the electricity markets to address the fundamental issue of market power in a deregulated market environment. Finally, motivated by the emergence of new storage technologies, I present an interesting result on the investment decision problem of placing storage over a power network. The goal of this study is to demonstrate that modern optimization and game theory can provide unique insights into this complex system. Some of the ideas carry over to applications beyond power systems.
ADAPT: mixed-signal ASIC for impedance adaptation in power line communications using fuzzy logic

One of the primary sources of problems in communications over electric distribution lines is the impedance variation. This problem often leads to an increase in the BER or makes the communications impossible. As the impedance seen by the communication system varies with location and time of day, an effective coupling of the signal in to the distribution line is needed. In this paper ADAPT, a mixed-signal ASIC that performs impedance adaptation in power line carrier communications using fuzzy logic, is presented. ADAPT also measures the impedance of the power line and the signal to noise ratio. As ADAPT performs a continuous adaptation between the emitter and the power line, maximum power transfer is achieved in each communication, increasing the reliability of the communication system. This experiment has been realized under FUSE special action in collaboration with SAINCO.
Transformation to an Entrepreneurial University: Balancing the Portfolio of Facilitators and Barriers

Several traditional research universities are developing entrepreneurial strategies and adopting an entrepreneurial vision due to expected benefits for themselves and the socio-economic system. Their transformation has also been catalyzed by the reduction in public moneys to support the universities, and the pressure on them to improve efficiency and increase revenues in the competitive market for education and research. However, the transformation can be beneficial only if the universities control it and systematically manage the factors that impact it; otherwise, it can diminish academic quality and prestige, and adversely affect the long term performance. Strategies for the transformation affect the forces of change and continuity which we call facilitators and barriers, respectively. Nevertheless, the metamorphosis into an entrepreneurial university can be more complex. Facilitators, while promoting change, may also have dysfunctional second-order effects and barriers may also have functional second order effects. We suggest that one has to: (a) maximize the functional effects, and (b) minimize the dysfunctional effects of both facilitators and barriers. The distinctive feature of this model is the recognition of the need for both forces of change and continuity for a successful transformation and the necessity to manage both of them.
Out-of-phase power divider based on two-layer SIW

A novel out-of-phase power divider based on a two-layer substrate integrated waveguide (SIW) is presented. The input of the proposed power divider in one substrate is coupled to four outputs in another substrate through a slot located in the broad wall of the waveguide. By employing a step SIW in the input structure, the power divider exhibits a wide passband and good output imbalance. The advantages of this structure are its good performance, low profile and ease of fabrication. The SIW structure could be integrated easily with other planar circuits.
Electromagnetic Compatibility of Integrated Circuits: Techniques for low emission and susceptibility

Electromagnetic Compatibility of Integrated Circuits: Techniques for Low Emission and Susceptibility focuseson the electromagnetic compatibility of integrated circuits. The basic concepts, theory, and an extensive historical review of integrated circuit emission and susceptibility are provided. Standardized measurement methods are detailed through various case studies. EMC models for the core, I/Os, supply network, and packaging are described with applications to conducted switching noise, signal integrity, near-field and radiated noise. Case studies from different companies and research laboratories are presented with in-depth descriptions of the ICs, test set-ups, and comparisons between measurements and simulations. Specific guidelines for achieving low emission and susceptibility derived from the experience of EMC experts are presented.
Experimental investigation of a control method for SI-HCCI-SI transition in a multi-cylinder gasoline engine

Air/Fuel Ratio (AFR) and Residual Gas Fraction (RGF) are difficult to control during the SI-HCCISI transition, and this may result in incomplete combustion and/or knocking. As a result, engine load may fluctuate, as indicated by the Net Indicated Mean Effective Pressure (NIMEP). The objectives of this work are to further understand this process and develop control methods to minimize the engine load fluctuation. This paper presents instantaneous AFR and RGF measurements, both taken by novel experimental techniques. The data provides an insight into the cyclic AFR and RGF fluctuations during the switch. The results suggest that the relatively slow change in the intake Manifold Air Pressure (MAP) and actuation time of the Variable Valve Timing (VVT) are the main causes of undesired AFR and RGF fluctuation, and hence unacceptable NIMEP fluctuation. We also found large cylinder-to-cylinder AFR variation in the transition. Therefore, besides throttle opening control and VVT shifting, cyclic and individual cylinder fuel injection control is necessary to achieve a smooth transition. The control method was developed and implemented in the test engine, and resulted in much reduced NIMEP fluctuations during the switch. The instantaneous AFR and RGF measurements could be adopted to develop more sophisticated control methods for SI-HCCI-SI transition.
Methodology Proposal for the Evaluation of Environmental Quality in Inhabited Indoor Facilities from Measurements of Carbon Dioxide Concentration

The indoor air quality (IAQ) and thermal comfort in public and residential buildings is relevant when in operation. However, to date it is not regulated nor subject to control in Chile, despite the consequences of a poor IAQ due to high concentrations of CO2 on learning, concentration, productivity and health. At a first stage, the IAQ of 2 classrooms in the south of Chile (latitude 45°23’71’’S and 47°115’11’’S) was monitored and evaluated using the ASHRAE 62/2010 13,779UNE international standards, being finally contrasted with the results of occupant satisfaction polls. Starting from this point, a new methodology to rank campuses in a dynamic regime in accordance to indoor air quality is proposed, especially for those with a high density of occupation, which can be used to manage patterns of ventilation, to allow IAQ verification in a post-occupational regime, and to achieve a healthy environment adjusted to the space’s own profile.
Change Management & Process Improvement for PEMS

The automotive industry in Europe has been forced to develop new solutions for the vehicles in order to fulfill the emission standards set by the European Commission according to European Emission Standards (Euro). The latest, Euro 6, involves new demands on continuous audits of emissions during a vehicles lifecycle. The standards are legislated and without approval a manufacturer may lose its license. Purpose: The purpose of this thesis is to produce and recommend a solution for an industrialized method to implement PEMS measurements within the production. This should involve a technical concept solution, method for the handling of data and work descriptions as well as the distribution of responsibility. Complemented with process descriptions and if possible a financial estimation of the project. The analysis should eventuate in a recommendation of potential implementation. A procedure for measuring the emissions within area of the production line and include: A technical method for testing and handling relevant information. Process ownership responsibilities. Method and process description for testing and deviation handling. Estimation of investment cost related to the testing. Method: To minimize the risk of influence the work will be divided into different phases. The first phase includes process mapping and descriptions to increase the understanding and visualize the differences between the processes. In extension the processes will be compared in matter of maturity in order to evaluate the potential to find a feasible flow. The evaluation will be followed by a conceptual assessment for different PEMS-solutions, which are developed in parallel. The final phase will be to estimate the investment cost of the compiled solution. Conclusion: According to Scania´s demands as well as technical requirements for a realistic approach for PEMS measurements has grounded in a conceptual method. The future concept is based on an external trailer solution where the interfaces for connection have been minimized to reduce time and complexity of usage. A feasible work process has been developed suitable for implementation as a coordinated flow parallel performed with the internal audit process.
Non-leaky conductor-backed coplanar waveguide-fed microstrip patch antenna

A new arrangement for exciting the microstrip patch antennas is presented here that allows easier integration with MMIC. The non-leaky conductor backed coplanar waveguide (NL-CBCPW) is described with emphasis on avoiding the leakage of power. The Green's functions of the structure and calculation of propagation constant and characteristics impedance of NL-CBCPW is given. This structure is utilized for feeding a rectangular patch through an aperture in the back plane. The Full-wave analysis of this arrangement is given. The theoretical and measured results of the patch are shown along with relative advantages of employing an arrangement.
A proposed framework for dynamic modelling of photovoltaic systems for DG applications

Dynamic modelling and simulation is essential to predict the overall electrical performance of photovoltaic (PV) systems. PV simulation models in the literature are not suitable for dynamic analysis with decentralised generation (DG) applications. This article proposes a framework for PV system dynamic modelling and simulation process. This framework presents the steps required to model the process of solar power generation, reflecting the environmental variables affecting the generation process. Based on the framework steps, a computer simulation model is developed in MATLAB-Simulink of the PV generator, and validated by comparing the developed PV electrical performance characteristic curves with those of the manufacturer's data sheet and the ones developed by commercial software. The last step of the proposed framework is dedicated for testing the developed PV model for grid-connected operation. The proposed framework resulted in a simulation photovoltaic decentralised generation model which constitutes a computer-aided design tool that is helpful for real-world solar energy engineering.
A high-performance/low-power on-chip memory-path architecture with variable cache-line size

SUMMARYThis paper proposes an on-chip memory-path architectureemploying the dynamically variable line-size (D-VLS) cache forhigh performance and low energy consumption. The D-VLScache exploits the high on-chip memory bandwidth attainableon merged DRAM/logic LSIs by replacing a whole large cacheline in one cycle. At the same time, it attempts to avoid frequentevictions by decreasing the cache-line size when programs havepoor spatial locality. Activating only on-chip DRAM subarrayscorresponding to a replaced cache-line size produces a signiﬁcantenergy reduction. In our simulation, it is observed that our pro-posedon-chip memory-patharchitecture, whichemploys adirect-mapped D-VLS cache, improves the ED (Energy Delay) productby more than 75 % over a conventional memory-path model. key words: cache, low power, variable line-size, mergedDRAM/logic LSIs, high bandwidth 1. IntroductionIntegrating a main memory (DRAM) and processorsinto a single chip, or a merged DRAM/logic LSI, makespossible to exploit the high on-chip memory bandwidthprovided by widening on-chip bus and on-chip DRAMarray. This approach is well known as a good solutionto break the memory wall problem [6][8]. Although thehighon-chipmemorybandwidthimprovesdatatransferability,stillwewill haveaperformance-gapproblembe-tween recent GHz high-speed processors and low-speedDRAM. Thus, we believe that it will be needed to em-ployhigh-speedon-chipcachesevenifthemainmemoryand the processors are integrated.For merged DRAM/logic LSIs having cache mem-ory, we canexploit thehigh on-chipmemorybandwidthby replacing a whole cache line at a time[2][9][11]. Thisapproach tends to increase the cache-line size if we at-tempt to exploit the attainable high bandwidth. Alarge cache-line size gives a beneﬁt of prefetching ef-fect if programs have rich spatial locality. However, itwill bring the following disadvantages with poor spatiallocality:1. a number of conﬂict misses will take place due tofrequent evictions,
OPERATION BASED COST ASSESSMENT OF MACHINED PARTS IN THE EARLY DESIGN STAGES

Cost is the driving factor of current manufacturing industry. The market is willing to accept products that come at a lower cost. In order to cater such a market, manufacturer has to look to make the product at a lower cost while recovering the expenses. Therefore, the design stage is critical when it comes to achieve this optimum cost. One of the most difficult tasks undertaken by the designer is to evaluate the cost of a design. The designer must develop a design in order to fulfill the required performance characteristics as well as provide the appropriate quality at minimal cost. Substantial research effort has been expanded in exploring design implications, new techniques, and methods for producing accurate and consistent cost estimates not only to generate optimum design solutions but also to achieve the maximum customer satisfaction in terms of low cost, high quality and in time product delivery. This paper focuses on a system developed to estimate the machining cost of a component by analyzing it in the early design phases. The developed system allows the user to consider the part machining operations as well as the manufacturing resources on hand during the analysis stages. A hybrid method, which uses qualitative and quantitative cost estimation techniques, is used in developing the system. The proposed system will be demonstrated and finally, further improvements on the system and its limitation are also discussed.
A Code for the Preliminary Design of Cooled Supercritical CO2 Turbines and Application to the Allam Cycle

This paper documents a thermo-fluid-dynamic mean-line model for the preliminary design of multi-stage axial turbines with blade cooling applicable to supercritical CO2 turbines. Given the working fluid and coolant inlet thermodynamic conditions, blade geometry, number of stages and load criterion, the model computes the stage-by-stage design along with the cooling requirement and ultimately provides an estimate of turbine efficiency via a semi-empirical loss model. Different cooling modes are available and can be selected by the user (stand-alone or combination): convective cooling, film cooling, thermal barrier coating. The model is applied to attain the preliminary aero-thermal design of the 600 MW cooled axial supercritical CO2 turbine of the Allam cycle. Results show that a load coefficient varying from 3 to 1 throughout the machine, and a reaction degree ranging from 0.1 to 0.5 lead to the maximum total-to-static turbine efficiency of about 85 %. Consequently, as opposed to uncooled CO2 turbines, a repeated stage configuration is an unsuited design choice for cooled sCO2 machines. Moreover, the study highlights that film cooling is considerably less effective compared to conventional gas turbines, while increasing the number of stages from 5 to 6 and adopting higher rotational speeds leads to an increased efficiency.
IDENTIFICATION OF FAULT LOCATION ON TRANSMISSION LINES USING WAVELET THRESHOLD

Power system fault location and identification of the different faults on a transmission lines for quick & reliable operation of protection scheme. Fault location estimation is very important issue in power system in order to clear faults quickly & restore power supply but the location of fault can be analyzed only with wavelet transform. Wavelet transform, which is very fast and sensitive to noise, is used to extract transients in the line currents for fault detection. The de-noising process rejects noise by thresholding in the wavelet domain and also improves the quality of the signal. Three wavelet functions ("db", "coif" and "sym") and three different thresholding methods are “Rigsure”, “Sqtwolog” and “Minimax” used to de-noise the noise signal. Thresholding rule for three different performance measures were considered to select the appropriate wavelet function to efficient noise removal methods such as, signal-to-noise ratio (SNR), mean square error (MSE), and smoothing ratio, it can be a good way to evaluate the equality of wavelet threshold de-noising. The results show that the wavelet transform can achieve excellent results in signal de-noising; de-noised signal using soft-threshold method is smoother and Soft-threshold method is more suitable. At the end, I used the classification of wavelet threshold analysis for signal decomposition to monitor some of the faults (e.g. L-G Fault, LL-G Fault, and LLL-G Fault,) in the transmission system. MATLAB simulation results are presented showing the selection of proper threshold value for fault detection also applied the wavelet Toolbox for use with MATLAB for find out the location of the fault. Keyword: Wavelet transform, discrete wavelet transform, signal de-noising, transmission line faults