Miracle-dz/UniFAR-FTUs huggingface dataset:
Efficient power and data converter circuits for RFID applications

The basic concept of radio-frequency identification (RFID) as a means of wireless identification of physical objects has existed for over half a century. However, the technology became economically feasible during the mid-90s mainly due to proliferation of low-cost integrated circuits. Since its emergence, RFID technology has gained extensive attraction and has been used in numerous industrial applications. To facilitate widespread deployment, RFID tags as the backbone of such identification systems have to fulfil two general requirements, namely, low power consumption and small form factor. In this thesis, with an emphasis on power and area efficient architectures, efficient data and power converters as the two major building blocks of sensor-enabled RFID tags are investigated. In the context of data conversion, by using two low-power analog buffers instead of the conventional binary weighted capacitive array, a low-power 8-bit successive-approximation register (SAR) analog-to-digital converter (ADC) with an area efficient digital-to-analog converter (DAC) architecture is proposed. Furthermore, time-mode ADC as an alternative area and power-efficient structure is discussed and a highly linear, wide-input-range voltage-to-time converter (VTC) is presented and experimentally evaluated. In the context of efficient power converters, through optimizing the bias voltage of the gate of switching transistors in a conventional differential rectifier, three high-efficiency RF rectifier architectures, namely, gate-boosted, auxiliary-cell biased, and quasi-floating-gate (QFG)-biased rectifiers are proposed. Furthermore, through dynamically adjusting the input capacitance, a dual-band matching approach for RF rectifiers is presented. In a practical
Effizienter Einsatz von Multicore-Systemen

Eingebettete Systeme unterliegen neben den funktionalen Anforderungen besonders nichtfunktionalen Qualitatsanforderungen wie Effizienz, Zuverlassigkeit und Echtzeitfahigkeit. Mit steigendem Bedarf an Rechenkapazitat konnen bisherige Konzepte zur Leistungssteigerung von Singlecore-Systemen jedoch nicht mehr eingesetzt werden - der Umstieg auf Multicore-Systeme wird erforderlich. Im zweiten Teil dieser Arbeit wird ein simulationsbasierter Ansatz zum Vergleich von Multicore-Scheduling-Algorithmen vorgestellt, mit dem Algorithmen fur Multicore-Systeme mit voller Migration und dynamischer Task-Prioritat untersucht werden. Wir erweitern diesen Ansatz um ein Verfahren zur Untersuchung einer Tasksetmenge mit stochastisch beschriebenen Eigenschaften und vergleichen ihn mit den im Teil 1 beschriebenen Algorithmen BinPacking-EDF und P-ERfair-PD² fur eine Gruppe von Automotive Powertrain Systemen.
A capability based framework for customer experience focused digital transformation

Digital transformation has a potential to deliver numerous values for an organisation through transforming its business models, organisational processes, products and services, and customer engagement. Such a transformation assists organisations to create new capabilities to better serve customers, leading to the improvement of customer experience. As a result, numerous organisations have been investing in digital transformation in todays dynamic environment. There is however, lack of a comprehensive framework for facilitating the implementation of digital transformation in organisations towards improving customer experience. This paper develops a capability based framework for digital transformation in organisations with respect to improving customer experience. Such a framework consisting of analytics, business, customer, and digital is developed through a thematic analysis of qualitative data collected from digital transformation experts in an organisation in Australia using semi-structured interviews. The paper contributes to digital transformation research by the development of a capability framework for better understanding digital transformation in organisations related to the improvement of customer experience.
SECURITY HARDENED KERNELS FOR LINUX SERVERS

Gadi, Sowgandh Sunil. M.S.C.E. Department of Computer Science and Engineering, Wright State University, 2004. Security Hardened Kernels for Linux Servers The typical kernels installed by well known Linux distributions are rarely secure. In this thesis, we consider the problem of developing security hardened Linux kernels intended for server machines. There are many kernel patches aimed at improving kernel security. Unfortunately, none of these have technical explanations of the prevention techniques. This thesis fills this gap and offers detailed explanations of root causes for the exploits and various intrusion techniques used by an attacker, using exploit programs posted in security forums. We explain prevention techniques of known open source kernel patches and the side effects of these patches. We critically review five independent kernel source code patches, known as OWL, SegmentedPAX, KNOX, RSX, and Paged-PAX, which aim to prevent buffer overflow attacks. We show that two of these patches are ineffective though their ideas are workable. We also discuss the performance impact of these kernel patches. Our secure kernels prevent many other types of exploits, including chroot breaking, temporary file race condition, file descriptor leakage, LKM based rootkits, and /dev/kmem rootkits. Using kernel threads we have designed and implemented a new kernel logger, and a new kernel integrity checker. Kernel logger provides secure logging in addition to syslogd. Kernel integrity checker can detect on-the-fly kernel modifications as well as yet-to-be discovered attacks. We added trusted path mapping to the kernel for preventing the execution of binaries from arbitrary path names. We also designed a new feature that enables treating a file system as readonly that works more robustly and more securely than merely mounting it as read-only. We believe that systems whose primary function is to be servers must deploy specially built kernels not only for performance reasons but even more importantly for security reasons. Often, unneeded services are exploited by the intruders. The construction process of our secure kernels provides pruning control at the level of system calls, capabilities, memory devices, network interface configuration, routing table configuration, and ext file system attributes. Many of these items are eliminated at compile-time whereas the remainder is frozen at run-time soon after the initial boot. As a feasibility study, we describe in detail the construction of secure kernels for Anonymous FTP server, Web server, Mail server, and a File server.
Motor current signature analysis

This paper shows how the speed of an induction motor (IM) can be extracted from the motor currents of an induction motor with a Labview implementation of motor current signature analysis (MCSA). The implementation is first applied to an IM driven by the 60 Hz mains. The estimation system consists of data acquisition, demodulation, and FFT spectrum analyses. The estimation is then extended to PWM inverter-fed IM drives. For PWM drives, the presence of stator current harmonics and a variable fundamental frequency demands filtering and a more powerful demodulation technique. The above estimation algorithms are implemented in Labview for Windows.
Data Reduction Techniques in Wireless SensorNetwork: A Survey

Wireless sensor network is a network which includes sensing and routing via nodes mainly called sensors and sink to monitor physical and environment condition and having many protocols according of usage . Recently, Wireless Sensor Network(WSN) used in many areas like military, hospitals, biological equipments, environment monitoring etc. The limitation of WSN includes lifetime of network, Battery, Bandwidth, Energy, data redundancy and routing etc. In this paper, we mainly focused on data redundancy and energy of sensor nodes.Data reduction is one of the data pre-processing techniques of data mining that can increase storage efficiency and reduce costs. Data reduction (DR) aims to remove unnecessary data while transmission. For this purpose many data reduction strategy introduce according to scenario of WSN. Recent algorithms and techniques based on data reduction are introduced in this survey which helps to increase energy as well as lifespan of network.
Effect of human resource practices on employee turnover in selected medium sized hotels in Kisumu city- Kenya

Employee turnover in the hotel industry is problematic and can be dysfunctional; there cannot be a cohesive successful team, if the team members are always changing. Turnover of hotel employees is the core issue of this research. In particular, the focus is on the influences of Human Resource Practices within these establishments that encouraged employees to either stay or leave. However, it is not just the retention of the staff that is of interest here, it is the examination of those elements of human resource practices, over which these establishments have some control. The broad objective of this research was to investigate the effect of human resource practices on employee turnover in selected medium sized hotels in Kisumu City. The research sought to establish the extent to which job assignment, job security and development/training of employees contributed to employee turnover. The research sought to assess the human resource practices that contribute to employee turnover. The research adopted Herzberg‟s two factor theory and equity theory. The research design was descriptive. A target of 24 medium sized hotels in Kisumu City comprising a population of 350 employees was used. Purposive sampling technique was used to select the hotels for the research, while stratified sampling method was used to select the various departments. Simple random sampling was used to select the respondents from the departments. A sample size of six hotels comprising 187 employees and 24 management staff was selected for this study. Primary and secondary data was used. Collection of data was done using questionnaires administered to the general employees and management staff. Descriptive and inferential statistics was used to analyze the data. The findings indicated that job assignment, job security and employee development significantly affected employee turnover (p=.005) 2-tailed. Employee development affected job assignment and job security and played a significant contribution to the employee turnover, as compared to job assignment and security. The job assignment, job security and employee development have an effect on the employee turnover. From the multiple regression, (R 2 = .674), it shows that all the predictors account for 67.4% variation for employee turnover. Training is a tool that can assist Hotels in building a more committed and productive workforce. Although training can play a major role in this process, Hotels need to look at additional strategies and practices that can enhance commitment. Training alone may offer many benefits but a much greater impact will be found when using a strategy to human resources that entails many different organizational practices and policies. Hotels need to strategically and methodically develop Human Resource Practices that are designed to fully achieve commitment and retention of employees in this informal sector in order to improve income per capita.
A Dual Characterisation of Regulatory Arbitrage for Expected Shortfall

We study portfolio selection in a one-period financial market with an Expected Shortfall (ES) constraint. Unlike in classical mean-variance portfolio selection, it can happen that no efficient portfolios exist. We call this situation regulatory arbitrage and show that the presence or absence of regulatory arbitrage for ES is intimately linked to the fine structure of equivalent martingale measures (EMMs) for the discounted risky assets. More precisely, we prove that the market does not admit regulatory arbitrage for ES at confidence level α if and only if there exists an EMM Q ≈ P such that ll dQ/dP ll∞ < 1/α.
Design of Series-Fed Bandwidth-Enhanced Microstrip Antenna Array for Millimetre-Wave Beamforming Applications

A novel series-fed microstrip patch array antenna for 37/39 GHz beamforming is proposed. To improve the antenna bandwidth, two of the patches are modified with truncated corners in the diagonal direction. This truncation generates two degenerate resonances which result in a flattened frequency response of the input impedance. Then, the recessed microstrip feeds for the other two patches are designed to yield a proper current distribution for radiation while maintaining minimal return loss, wide bandwidth, and low sidelobes. Though the individual patch antenna is elliptically polarized due to the truncated corners, a phased array with linear polarization can still be obtained by alternately deploying left-handed and right-handed elliptically polarized patches. For validation of the proposed design, an array is fabricated with 16 elements on a substrate with 10 mil thickness and εr =2.2. The beamforming capability of the proposed array is also demonstrated. The experiment results agree well with the simulation and show that the antenna gain and the return loss bandwidth can be more than 21 dBi and 8%, respectively.
Improved Minimum Migration Time VM Selection Policy for Cloud Data Center

In this Paper our algorithm works on Modification Minimum Migration Time Virtual Machine (VM) Selection Policy to help minimize overall execution time for every host machine. Entire result shows less execution time mean. These phenomena help to improve SLA Violation. That is also minimize number of Virtual Machine Migration (VMM) & Energy Consumption. My selection Policy based on cloudsim simulator 3.0 and provide best existing provision mechanism Like MadMmt.
Patent Race Experiment Revisited: Are Difierences Between Experiments Just Random Variation?

This paper reports the results of a replication experiment of a patent race experiment by Zizzo (2002, International Journal of Industrial Organization. 20, 877{902). First, the results of the replication experiment are presented and compared to the results of the original one. Secondly, the appropriate econometric models and a bootstrap validation method are employed. Third, data sets of both experiments, the replication and the original, are pooled and analyzed jointly. In addition, a so-called mixed model is introduced to control for difierent type of heterogeneity observed in experiments. Basically, the replication is in many respects successful, and the results are generally in line with the original study. However, there are difierences which cannot be entirely considered as random variation between samples. In contrast to the earlier study linear random efiects model is inappropriate with replication data and pooled data. Also the replication experiment provides only limited support for the theoretical predictions.
Case, Constructions, FrameNet, and the Deep Lexicon

Three major contributions that Charles Fillmore made in linguistics play an important role in the enterprise of deep lexical semantics, which is the effort to link lexical meaning to underlying abstract core theories. I will discuss how case relates to lexical decompositions, how motivated constructions span the borderline between syntax and semantics, and how the frames of FrameNet provide an excellent first step in deep inference.
Exchange rate volatility and cooperation in an incomplete markets' economy

In this paper, we contribute to the debate on whether exchange rate volatility is detrimental or not for welfare by characterizing optimal monetary policies in a two-country OLG model where markets are incomplete. The equilibrium nominal exchange rate is volatile as a result of shocks against which agents are not able to insure. In a non-cooperative environment, central banks have an incentive to devaluate the domestic currency by giving monetary transfers to domestic agents. However, such policies result in higher exchange rate volatility. We show that cooperation reduces exchange rate volatility as: (1) the negative spillover effects due to the expansionary monetary policies are internalized; (2) cooperative policies smooth the effects of shocks to fundamentals on the exchange rate. For standard parameter values, the gains from cooperation are not negligible. However, for cooperation to be Pareto improving countries should be weighted differently in the social welfare function. This could explain the lack of cooperation across countries, instead of the negligible gains as previously argued.
Estrategia de control para robots manipuladores con realimentación visual y plataforma electro-neumática de 3gdl

In this paper a control scheme in the task space is presented for a 3DOF Electro-Pneumatic Platform and Servo-visual System. The control scheme is based on the measurement of system task space state. The control system considers two loops in cascade, an internal loop solving the robot’s joint control and an external loop the task space control. A stability analysis is developed under the conditions that it is possible to approximate the dynamic effect of the internal loop as an external loop time delay. To illustrate the proposed controller, the control system stability and its performance, experimental results using a 3DOF pneumatic parallel robot and servo-visual system are presented. Experimental results confirm the expected step response in the task space. The control scheme presented opens a new research field in the task space control with algorithms for the solution of, trajectory control and feed-forward control.
Influence of Link Lengths on the Workspace of a Parallel Topology Robot

This paper proposes a study on the workspace of the guiding device mechanism of a parallel topology robot. The kinematical scheme and the geometrical model of the guiding device mechanism of the parallel topology robot are presented. The lengths of binary links between the platforms determine the shape and the volume of the parallel robot’s workspace; different boundaries of the workspace are presented. Thus, variation of the workspace in both volume and shape is studied, depending on the binary link lengths, using for modeling and simulation SolidWorks software.
A Formal Analysis and Taxonomy of Task Allocation in Multi-Robot Systems

Despite more than a decade of experimental work in multi-robot systems, important theoretical aspects of multi-robot coordination mechanisms have, to date, been largely untreated. To address this issue, we focus on the problem of multi-robot task allocation (MRTA). Most work on MRTA has been ad hoc and empirical, with many coordination architectures having been proposed and validated in a proof-of-concept fashion, but infrequently analyzed. With the goal of bringing objective grounding to this important area of research, we present a formal study of MRTA problems. A domain-independent taxonomy of MRTA problems is given, and it is shown how many such problems can be viewed as instances of other, well-studied, optimization problems. We demonstrate how relevant theory from operations research and combinatorial optimization can be used for analysis and greater understanding of existing approaches to task allocation, and to show how the same theory can be used in the synthesis of new approaches.
Assessment of sustainability of livelihoods of households in "Fast Track" resettlement areas of Shamva District in Zimbabwe

4 LIST OF TABLES . 8 LIST OF FIGURES . 9 ABREVIATIONS . 10 CHAPTER 1: INTRODUCTION . 11 1.1 Background . 11 1.2 Livelihoods in Fast Track resettlement areas of Shamva District . 13 1.3 Statement of the Research Problem . 14 1.4 Justification/Rationale of the Study . 15 1.5 Research Objectives . 15 1.7 Theoretical Framework of the Study . 15 1.8 Operational Definitions of Key Terms and Concepts . 8 1.9 Outline of the Dissertation . 8 REFERENCES . 10 CHAPTER 2 LITERATURE REVIEW . 16 2.1 Introduction . 16 2.2 Land Resettlement in the Global Context . 16 2.3 The Fast Track Land Reform Programme in Zimbabwe. 18 2.4 Land Reform and Social Justice . 19 2.5 Explanation of the Sustainable Livelihoods Framework . 20 2.5. 1 Key elements of the Sustainable Livelihoods Framework . 21 2.5. 2 Social capital . 21 2.5. 3 Physical capital . 25 2.5. 4 Financial capital . 26 2.5. 5 Human capital . 27 2.5. 6 Natural capital . 29
Use of amplified expenditure expenses using the calculation services scheme

An information analyst can study the ability of social achievement according to countless user site records by evaluating multiple circular range queries. More specifically, the zeros of the previous search, especially dealing with system comparisons or encrypting command-saving files, can be expanded and exploited to allow exploration of spatial data between axes and rectangular parallels. While most search file encryption schemes focus on common SQL queries, for example, keyword queries and logical queries, two searches have been achieved in particular from the search for geometric range to encrypted spatial data. Our main contribution to the fact that our design is in fact a general approach, can support several types of to the axis. With the rapid development of social systems and location-based services and travel using a laptop, the amount of data that people create every day continues to grow dramatically. It is no longer easy or profitable for companies to keep a large amount of data in their area. More specifically, it lacks a general approach, which can accept various types of engineering queries on a large scale in encrypted spatial data, regardless of their specific geometric shapes. Our design has great potential for use and application in large applications, for example, location-based services and spatial databases, requiring the use of sensitive spatial data based on robust privacy.
Effect of Board Size on the Capital Adequacy of MoneyDeposit Banks

The aim of this study is to determine the effect of board size on the capital adequacy of money deposit banks. The research design adopted by this study is the quantitative approach. The population of interest for this study comprised the twenty-two deposit money banks listed on the Nigerian Stock Exchange (NSE) as at March (2016) for the period of sixteen years from 2000 to 2016. The study utilized only the secondary source of data. The board size contributes positively to the capital adequacy of the selected money deposit banks in Nigeria. The coefficient of determination which measures the control power of the independent variable over the dependent variable was calculated with the instrument of adjusted R-Squared and it yielded 0.591596. This entails that the variations in capital adequacy of the selected deposit money banks is significantly influenced by the board size. This is in the magnitude of 59.156%. This is significant given that it is beyond average. Based on the findings, the study concludes that on the average, board size have significant positive effect on capital adequacy of money deposit banks. Anchored on this finding, it is recommended that there should be optimal sustenance of the existing board size and should only be altered when objectively necessary.
Equity Exchange Fees and Revenues

Fees charged by U.S. equity exchanges for services such as non-core market data, connectivity, and co-location have become controversial. Recently, the Securities and Exchange Commission required the exchanges justify hundreds of past fee increases. In their defense, exchanges argue that the fees that they charge are constrained by competition for order flow between the three major exchange families. To the authors’ knowledge, no extant work associates fee changes with exchange revenues. We gather fee increases and exchange financial statement information between 2006 and 2016 to examine the relation between fees and revenues. We find that, when statistically significant, revenue increases with fee increases without a consistently strong volume effect, which suggests that any decrease in subscriptions due to fee increases is more than offset by the revenue increase from the remaining subscribers.