Miracle-dz/UniFAR-FTUs huggingface dataset:
Fuzzy Logic Optimization Method for Energy Efficiency Improvement of CFFS using GA in WSN

Recently, the range of applications for wireless sensor networks has grown. In industrial applications using data-driven approaches, data reliability is particularly important. However, deployed sensor nodes can be easily damaged due to physical damage or node acquisition factors caused by attackers, and false report injection attacks may occur. CFFS with collaborative verification has been proposed to filter out false reports. The proposed CFFS reduces the probability of a successful attack by separating sensor nodes into clusters. The false report filtering performance in the existing scheme is determined according to the pre-security strength setting. Unfortunately, with CFFS, it is impossible to secure each cluster because multiple attacks in a region are not considered. DCFFS uses fuzzy logic to enable security management for each cluster in consideration of the network environment and the geographical arrangement of the nodes. It is necessary for a network administrator to adjust the scope of the membership function parameter to fit the network environment to ensure that the output has an appropriate security strength value for the environment; however, this is difficult to know because it has dissimilar optimum ranges for each application. This paper introduces a fuzzy optimization method that can be adapted to various environments using a genetic algorithm in CFFS. The energy efficiency of nodes is increased by correcting the scope of the membership function in the proposed method. We used experiments to verify that the energy efficiency of the proposed scheme is increased, as compared to the existing scheme.
Ultra-Wideband Propagation Channel-Measurements and Simulations in Industrial Environments

The rapid development of electronic components has resulted in the emergence of newmobile applications targeted at industry and hospital sectors. Moreover, a lack of availablewireless frequencies as result of the growth of wireless systems is becoming a problem.In this thesis we characterize industrial and hospital environments in order to provide theknowledge necessary to asses present and future development of critical wireless applications.Furthermore, we investigate the possibility of using TV white space by analysingthe interference from secondary to primary user in home environments. Some of the wireless solutions used in industries and hospitals come directly fromsystems designed for home or office, such asWLAN and Bluetooth. These systems are notprepared to handle problems associated with interference of impulsive character found inindustrial processes and electrical systems. Typically, industrial environments have been classified as reflective environments dueto the metallic structure present in the buildings. In this thesis, we demonstrate that althoughthis may be generally true, some locations in the industry may have special propertieswith wave propagation characteristics in the opposite direction. Stored materials canabsorb wireless signals, resulting in a coverage problem. From the measurement campaignwe are able to distinguish three main classes of indoor environments (highly reflective,medium reflective and low reflective) with different propagation characteristics. Improving spectrum efficiency can be a solution to the growing demand for wirelessservices and can increase a system’s robustness against interference, particularly in criticalapplications in industrial and hospital environments. One improvement in spectrum efficiencycan be for secondary consumers to reuse unassigned portions of the TV spectrum ata specific time and geographical location. This thesis studies the effect of inserting whitespace devices in the TV broadcast spectrum. Note that any new model must state the maximumpower allocated to secondary users to avoid harmful interference with the primarysignal. The content of this thesis is divided into three parts. The first part is the most comprehensiveand addresses electromagnetic interference and multipath characterization ofindustrial environments. In this part, we have developed a method for channel characterizationfor complex electromagnetic environments and have produced results from differentindustrial environments. The second part presents a preliminary study that characterizesthe electromagnetic interference in a hospital environment. The third part is a study ofsecondary users reusing the TV white spaces.
Risk of outsourcing – applying risk management techniques to staffing methods

Advances the idea that many companies are trying not to hire permanent employees, but instead are hiring temporary workers to reduce costs. By having temporary workers, however, new risks are assumed in terms of facility management. Analyses employee leasing, contracting, temporary agencies, consultants and professional services, and explains the need to hold harmless agreements for vendors and workers.
Carbon Resistor Pressure Gauge Calibration at Low Stresses

The 470 Ohm carbon resistor gauge has been used in the stress range up to 4–5 GPa for highly heterogeneous materials and/or divergent flow experiments. The attractiveness of the gauge is its rugged nature, simple construction, low cost, reproducibility, and survivability in dynamic events. Gauge drawbacks are the long time response to pressure equilibration and gauge resistance hysteresis. In the regime below 0.4 GPa, gauge calibration has been extrapolated. Because of the need for calibration data within this low stress regime, calibration experiments were performed using a split‐Hopkinson bar, drop tower apparatus, and gas pressure chamber. Since the performance of the gauge at elevated temperatures is a concern, the change in resistance due to heating at atmospheric pressure was also investigated. Details of the various calibration arrangements and the results are discussed and compared to a calibration curve fit to previously published calibration data.
Selected Essential Amino Acid Enhancement by Bacillus cereus from Solid State Fermentation of Soy Pulp

This research was evaluated the enhancement of essential amino acid (EAA) namely isoleucine, valine, methionine, lysine and tryptophan from soy pulp by using solid state fermentation. The EAAs were selected based on their importance and functions in fish nutrition. In this study, eight bacteria were isolated from solid state fermented soy pulp and screened for isoleucine, valine, methionine, lysine and tryptophan enhancement activities. The potential bacteria strain (S1, S2, S3, S4, S5, S6, S7, and S8) were inoculated into solid state medium (soy pulp, 95.5%; yeast extract, 2%; ammonium sulphate, 2%; 0.5% glucose v/v) and subjected to solid state fermentation for eight days. The finding of screening test of bacteria S1 assay performed the highest total EAA bacteria (42.9 ± 19.50 gL-1). This was followed by S3 (28.2 ± 5.21 gL-1), S7 (23.2 ± 5.29 gL-1), S5 (18.8 ± 1.70 gL-1), S4 (30.0 ± 14.0 gL-1), S8 (19.9 ± 2.38 gL-1), S2 (20.3 ± 4.31 gL-1) and S6 (13.9 ± 0.46 gL-1). Bacteria strain S1 was then identified as Bacillus cereus (MH027625) by Polymerase Chain Reaction (PCR) assay and sequencing. Therefore, the present bacteria isolate B. cereus (MH027625) can be used in enhancing EAA for aquaculture use.
Enterprise Systems, Control and Drift

Enterprise Systems are widespread in current organizations and seen as integrating organizational procedures across functional divisions. An Enterprise System, once installed, seems to enable or constrain certain actions by users, which have an impact on organizational operations. Those actions may result in increased organizational control, or may lead to organizational drift. The processes that give rise to such outcomes are investigated in this chapter, which is based on a field study of five companies. By drawing on the theoretical concepts of human and machine agencies, as well as the embedding and disembedding of information in the system, this chapter argues that control and drift arising from the use of an Enterprise System are outcomes of the processes of embedding and disembedding human actions, which are afforded (enabled or constrained) by the Enterprise System.
Exploratory Factor Analysis in Teacher Questioning Elements for Critical Thinking among form 4 Students in Some Selected Schools in the State of Sarawak

No. 8, Pg. - Abstract Teacher questioning elements for critical thinking is crucial to ensure the process of teaching and learning. It is dependent on the teacher’s ability and capability to master questioning techniques. Questioning skills are not just about acquiring information, rather they are meant to help build a positive communication climate and foster mutual understanding and cooperation between teachers and their students. This study aimed to examine the elements of teacher questioning for critical thinking. Early evidence of the validity of the teacher questioning element for critical thinking was obtained through Exploratory Factor Analysis (EFA). Based on the EFA procedure, the study used principal axis factoring and varimax rotation. This study was a fully quantitative study which used a survey method employing a questionnaire as the study instrument. A total of 147 students were involved as respondents in this study. Data was analys ed descriptively using Cronbach’s Alpha reliability test and Exploratory Factor Analysis (EFA). There were 3 respondents who were excluded due to outliers in the normality analysis. The normality results achieved showed a Cronbach’s Alpha value of 0.874, well beyond 0.60. The results of the exploratory factor analysis showed three factors which Eigen values were greater than 1.0. A KMO ’s (Kaiser-Meyer-Olkin ’s ) value of 0.954, higher than 0.6, indicates that the items in the teacher questioning element variable for critical thinking were sufficient to be interrelated. Mean while, the Bartlett Test was significant (Chi Square =10295.506, p <0.05). No
Development of a CAM System with Linear Servo Motor for Automation of Metal Hammering

The study deals with an automation of the metal hammering process by use of a linear motor on the basis of CAD data. Metal hammering is one of a traditional handcrafts and only skilled technician can form objective shape from a blank sheet metal without die/mold. It shall be regarded as a type of rapid manufacturing process that is it can be applied to make small amount of sheet metal part. However, to master metal hammering is difficult because of its intricate forming procedure. In this study, a linear servo hammering system, which developed in-house, is adopted as a good mimic of human hammering operation. We have already proposed a calculation method of form difference between workpiece and its CAD data quantitatively in order to assess how workpiece formed accurately and to identify primary factors for the formability. Previous version of our own developed hammering system could form workpiece without considering temporary shape of workpiece with feed-forward control. The operator had to try several times to obtain optimal hammering condition for different shapes of CAD data. It is one of the major differences in comparison with the skilled human operators do. In the study, the authors improved the hammering system to measure shape of workpiece in hammering process. This modification made hammering process to be able to feedback temporary condition to form more accurately. From the experimental result, robustness of the system performance for input shape, compared with that previous system requires several experiments to determine hammering parameter has been demonstrated.
A technique for minimizing intermodulation distortion of GaAs FET's

This paper describes the theory to minimize the intermodulation distortion under a certain current bias condition for GaAs FET's. A device-parametric study has been carried out to obtain the general equation that provides the lowest distortion condition as a function of the operating current. Based on the present theory, FET parameters have been designed practically. >
Taming the Fire of Nephrotoxic Botanicals

IntroductIon Botanicals are broadly defined as materials derived from plants and the term particularly refers to medicinal plants (herbs), herbal materials, herbal preparations, and finished herbal products that contain parts of plants as active ingredients and are used as herbal medicines or functional food. In past decades, globalization has accelerated exchanges of herbal traditions, and herbal medicines have gained popularity worldwide and become more important to the medical and pharmaceutical community, as well as to the public. [1,2] Also known as botanical medicine, phytomedicine, or phytotherapy, herbal medicines have deep cultural roots and long historic records of use in humans. These materials are arguably the most important part of traditional medicine. [3,4] Indeed, herbal medicines have some drug-like properties, are a rich resource and knowledge base for new drugs, and offer new options for unmet medical needs. [5,6] In keeping with this, regulators worldwide have increasingly approved and regulated herbal medicines as drugs. [7,8] However, herbal medicines, and other traditional medicines, can be both friends and foes to the kidneys, as elegantly reviewed by Wojcikowski et al.[9,10] and most recently by Stanifer et al.[11] The US National Kidney Foundation has suggested renal patients to “avoid all herbal supplements,” especially 17 potential nephrotoxic herbs and over 50 phosphate-or potassium-rich herbs. [12] While acknowledging the potential for harm, we feel that there is potential clinical and scientific value for herbal medicines in prevention and treatment of acute kidney injury (AKI)[13] and chronic kidney disease (CKD),[14,15] Taming the Fire of Nephrotoxic Botanicals
Theoretical and experimental investigation of adaptive antenna impedance matching for multiband mobile phone applications

Adaptive impedance matching is an attractive option to extend the operational bandwidth of a mobile phone antenna system beyond the limits set by available antenna and device volume and, moreover, to adapt to varying near field environment. Theoretical and experimental results on the attainable improvement in power transfer and on compliance with the tough linearity requirements of mobile phone standards, questions which are central to the assessment of feasibility in product applications are reported.
Compensator Design for Adaptive Voltage Positioning (AVP) for Multiphase VRMs

In an AVP scheme, feedback compensation design is crucial to achieve a desirable constant converter output impedance while maintaining converter stability. The model proposed and the analysis given provides insightful view of the interaction of the two performances. Depending on the relative location of the noise-suppressing compensation pole with respect to the capacitor ESR-zero frequency, the performance of output impedance and stability margin can be vary a great deal. If the two frequencies are too close to each other, the stability margins get small, and Z oc exhibits a spike /dip at the ESR-zero frequency. This happens in a realistic case, when ceramics capacitors are used and switching frequency is set high. This conclusion is verified in a SIMPLIS simulation of a practical 4-phase VRM.
Configuration Space Control

Abstract : Complicated systems with nonlinear time-varying behavior are difficult to control using classical linear feedback methods applied separately to individual degrees of freedom. At the present, mechanical manipulators, for example, are limited in their rate of movement by the inability of traditional feedback systems to deal with time-varying inertia, torque coupling effects between links and Coriolis forces. Analysis of the dynamics of such systems, however, provides the basic information needed to achieve adequate control. Implementation of a control system based on such analysis is not straightforward, however, since impractical amounts of computation or memory may be called for. We propose a new method that balances the trade-off between computation and storage costs. The actuator torques required to move a manipulator along a trajectory are calculated using coefficients found in a look-up table indexed by the configuration of the manipulator. Feedback plays only an indirect role in correcting for small differences between the state of the actual device and that of a dynamic model.
Experimental study of polarization and backscattering noise of resonator fiber optic gyro

We analyzed the parameters and main noise influence on resonator fiber optic gyro’s finesse, and put forward the main way to improve the finesse. Then, we built the optical fiber ring resonator test system, inhibited the polarization fluctuation noise by using the polarization controller and polarization-laser, and at last took the backscattering noise tests. The experimental results showed that the inhibition of the polarization fluctuation noise has made the fiber optic resonant ring finesse increase from 64.67 to 84.57, resonant depth increase from 0.5033 to 0.7308. At the same time, we measured the intensity ratio of the Rayleigh backscattering light and main signal of 0.0267%. It provides a helpful reference for manufacturing of resonator fiber optic gyro．
Performance of Various Metaheuristic Techniques for Economic Dispatch Problem with Valve Point Loading Effects and Multiple Fueling Options

The paper presents the metaheuristic approaches based on pattern search and simulated annealing hybridized with sequential quadratic programming, a powerful nonlinear adaptive technique for estimation of the finest combination of generated power in a given system at lowest operating cost while sustaining the operating condition of system efficiently. The fuel cost is minimized by satisfying the nonlinear operating conditions of thermal units mainly based on generation capacity constraints, generator ramp limit, power balance constraints, and valve point loading effect and by keeping in view the prohibited operating zones, respectively. About the optimization, a comparative study is made for pattern search (PS) and simulated annealing (SA), as a viable global search technique and sequential quadratic programming, an efficient local optimizer and their hybrid versions. The applicability, stability, and reliability of the designed approaches are validated through comprehensive statistical analysis based on Monte Carlo simulations.
Full polarimetric sum and difference patterns synthesis for conformal array

A convex optimisation-based full polarimetric sum and difference patterns synthesis method for a conformal array is proposed. The method adopts a manifold separation technique and a co-polarisation and cross-polarisation basis to model the conformal array response in a closed-form expression from array calibration measurements, and then formulates the full polarisation sum and difference patterns synthesis as convex optimisation problems. The method is applied to a simulated conformal spherical conformal array composed of 176 antenna elements; the low sidelobe and low cross-polarisation level sum and difference patterns are presented.
Generic and context-dependent gene modulations during Hydra whole body regeneration

The cnidarian Hydra is a classical model of whole-body regeneration. Historically, Hydra apical regeneration has received more attention than its basal counterpart, most studies considering these two regenerative processes independently. We present here a transcriptome-wide comparative analysis of apical and basal regeneration after decapitation and mid-gastric bisection, augmented with a characterization of positional and cell-type expression patterns in non-regenerating animals. The profiles of 25’637 Hydra transcripts are available on HydrATLAS (https://hydratlas.unige.ch), a web interface allowing a convenient access to each transcript profile. These data indicate that generic impulse-type modulations occur during the first four hours post-amputation, consistent with a similar integration of injury-related cues on both sides of the amputation plane. Initial divergences in gene regulations are observed in regenerating tips between four and eight hours post-amputation, followed by a dramatic transcriptomic reprogramming between eight and 16 hours when regulations become sustained. As expected, central components of apical patterning, Wnt3 and HyBra1, are among the earliest genes up-regulated during apical regeneration. During early basal regeneration, a BMP signaling ligand (BMP5-8c) and a potential BMP inhibitor (NBL1) are up-regulated, suggesting that BMP signaling is involved in the basal organizer, as supported by higher levels of phosphorylated Smad in the basal region and by the LiCl-induced extension of NBL1 expression. By contrast, upon ectopic activation of Wnt/β-catenin signaling, NBL1 is no longer expressed, basal differentiation is not maintained and basal regeneration is abolished. A tight cross-talk between Wnt/β-catenin apically and BMP signaling basally appears necessary for maintaining and regenerating Hydra anatomy.
NUMERICAL STUDY OF VARIABLE GEOMETRY NOZZLE FLOW USING A MESH DEFORMATION TECHNIQUE ON HYBRID UNSTRUCTURED MESHES

In the present study, unsteady flow simulations of a variable geometry nozzle were conducted using a two-dimensional flow solver based on hybrid unstructured meshes. The variable geometry nozzle is used to achieve efficient performances of aircraft engines at various operating conditions. To describe the motion of the variable geometry nozzle, an algebraic method based on the basis decomposition of normal edge vector was used for the deformation of viscous elements. A ball-vertex spring analogy was used for inviscid elements. The aerodynamic data were obtained for a range of nozzle pressure ratios, and the validations were made by comparing the present results with available experimental data. The unsteady nozzle flows were simulated with an oscillating diverging section and a converging-diverging section. It was found that the nozzle performances are influenced by the nozzle exit flow characteristics, mass flow rate, as well as unsteady effects. These unsteady effects are shown to behave differently depending on the frequency of the nozzle motion.