Miracle-dz/UniFAR-FTUs huggingface dataset:
Robust optimisation of source power and relay beamforming in multiuser wireless networks

In this work, a novel design for a highly non-convex problem of joint optimisation of source power and relay beamforming vector in multi-user systems is presented. Taking into account imperfect channel-state information, the design problem is formulated as a non-convex optimisation problem for the maximisation of the minimum signal-to-interference-plus-noise ratio across given users. This computationally-intractable non-convex problem is exploited for hidden convexity after which a path-following algorithm with low computational complexity is developed which converges to a local optimal point after a few iterations. Extensive simulation results show that the proposed algorithm of joint design outperforms the alternating optimisations of source power and relay beamforming.
COMPATIBILITY OF THE ICD-9-CM AND AIS 80. AN UPDATE

The feasibility is being explored of coding the Abbreviated Injury Scale (AIS) severity directly from hospital discharge diagnoses which have been classified using the World Health Organization's International Classification of Diseases (ICD). The ability to convert ICD rubrics to AIS severity codes would greatly enhance the scales utility. A clinical modification of the 9th revision of the ICD (ICD-9-CM) giving increased specificity has been recently developed. Several simplifying assumptions were made to facilitate conversion of the ICD-9-CM. Some of the more important ones are listed. A computerized ICD-9-CM-AIS '80 conversion table has been developed which can be used to assign severity scores to those rubrics for which a compatible AIS description exists. The validity of this conversion table is currently being tested. Although primary results are encouraging with regard to the utility of the table, certain limitations have been noted.
p-Optimality-Based Multiobjective Root System Growth Algorithms for Multiobjective Applications

In this paper, a multiobjective root system growth algorithm-based p-optimality (p-MORSGA) is proposed. The proposed p-MORSGA extended original root system growth algorithm with multiobjective nondomination strategy. To enhance its effect of convergence of solution groups, the p-optimality criterion is employed to determine the solutions of last nondominated front into the next generation group. In the evolution process, global general (GG), concerning the margin information and population density, is selected as the suitable optimality criterion of evaluating the performance of solutions. Application of the new p-MORSGA on several multiobjective benchmark functions shows a marked improvement in performance over the modified classical MOEAs with such criterion. Finally, the proposed p-MORSGA is applied to solve two real-world problems, multiobjective portfolio optimization problems (MOPOPs) and multiobjective optimal power flow (OPF) problems. The experimental results demonstrate that p-MORSGA is extremely effective for real-world application problems.
Frequency measurement approach based on linear model for increasing low SNR sinusoidal signal frequency measurement precision

In order to improve the frequency measurement accuracy of low signal-to-noise ratio (SNR) sinusoidal signal, a frequency measurement approach based on a linear model is proposed. Firstly, the precision of frequency measurement affected by random noise while transforming the wave is analysed. Then, a linear model of frequency measurement is established according to the characteristics of frequency measurement, and the model is fitted by least-square regression analysis with the measured data of several periods. Finally, the formula for frequency calculation is obtained from the regression results, and the relative error of frequency measurement is deduced and compared with other method. Simulation results and frequency measurement experimental results show that, the proposed method can effectively suppress noise and improve the frequency measurement accuracy of low SNR sinusoidal signal.
Piezoelectric Motor Utilizing an Alumina/PZT Transducer

To enhance the torque and output power of the rod-shaped piezoelectric rotary motors, in this article, we employ alumina to substitute the metal parts of the transducers considering that the high Young's modulus of alumina may avoid preload-induced vibration reduction and enable the transducers to generate the high driving force. Besides, alumina exhibits a relatively low density compared to most of the materials commonly used as the vibrating bodies (except aluminum alloy); this probably enhances the power densities of the piezoelectric motors. To assess the validity of our proposal, we constructed a Langevin-type alumina/lead–zirconate–titanate (PZT) motor and investigated its load characteristics. The transducer of 35 mm in outer diameter operated in orthogonal bending (B2) modes and drove the rotor with its end surface. The alumina/PZT motor yields the maximal torque and maximal output power of 1.56 N·m and 26.0 W, respectively, both of which exceed those of the metal/PZT motors having identical structure and working in B2 modes. Additionally, its power density reaches 56.3 W/kg, relatively high among the rod-shaped rotary motors although some of which work in more powerful modes. This article validates the effectiveness of our proposal and provides a new approach to improve the performance of the rod-shaped piezoelectric rotary motors.
Collision-Free Formation Control for Multi-Agent Systems With Dynamic Mapping

In this brief, a formation control strategy is proposed for multiple elliptical agent systems. The multiple elliptical agents can form a predefined formation in any 2D space. The controller is based on the neighborhood of each agent and the optimal mapping decision for the whole group. The collision-free algorithm is built based on direction and distance of avoidance group of each agent. A novel adaptive random mapping algorithm is established to obtain the optimal mapping to enhance the effectiveness. Simulation results are given to illustrate the performance of the new control method developed.
Estimation of Intrinsic Dimension using Supervised Parameter Selection Method

In this paper, we propose a new method for estimating the intrinsic dimension of datasets. The new method uses the local information of different scales of the sample points (by adjacency matrix) to estimate the intrinsic dimension. The only parameter used in the new method is the scaling ratio k, which determines the adjacency matrix of different scales. We propose a parameter selection method based on the difference of estimated dimension and the classification accuracy of projection data. Experiments on real datasets demonstrate the effectiveness of the proposed method.
A Fractional Derivative Approach for Robust Segmentation of Blood Vessels in Digital Fundus Retinal Images

Segmentation of Blood vessels is of key importance in the diagnosis of retinal images and early detection of diabetic retinopathy. In this paper, we propose a novel approach for segmentation of blood vessels in digital fundus retinal images using a fractional derivative-based edge operator. We have tested our algorithm on the standard DRIVE database. The results show significant improvement in terms of accuracy in segmentation and robustness to noise.
WAKE-FIELD REDUCTION IN HYBRID PHOTONIC CRYSTAL ACCELERATOR CAVITIES

Photonic crystals (PhCs) have attractive properties for manipulating electromagnetic radiation. In one application, PhCs are composed of a number of dielectric rods that can be arranged to make an accelerator cavity. These structures trap an accelerating mode and allow higher-order modes to propagate out. This work focuses on optimizing PhC cavities to reduce transverse wake-fields by minimizing the presence of unwanted modes that deflect bunches off axis and lead to beam instabilities. The transverse wake-fields in the optimized structure are compared with transverse wake-fields for a triangular lattice structure and the CLIC cavity with higher-order mode (HOM) damping.
Current Compensation with Circulating Current Control Circuit in Vibration Generator

Energy harvesting methods such as vibration generators have attracted considerable attention. For proper utilization of the generated power, its performance needs to be improved. This study investigates a current compensation method with a circulating current control circuit for improving the output characteristics. As a result, the output power increases compared to that of conventional circuit due to current compensation. The validity of the proposed circuit is experimentally verified in this report.
Manual Scaling of Ionograms Measured at Jeju (33.4°N, 126.3°E) Throughout 2012

The ionosphere has been monitored by ionosondes for over five decades since the 1960s in Korea. An ionosonde typically produces an ionogram that displays radio echoes in the frequency-range plane. The trace of echoes in the plane can be read either manually or automatically to derive useful ionospheric parameters such as foF2 (peak frequency of the F2 layer) and hmF2 (peak height of the F2 layer). Monitoring of the ionosphere should be routinely performed in a given time cadence, and thus, automatic scaling of an ionogram is generally executed to obtain ionospheric parameters. However, an auto-scaling program can generate undesirable results that significantly misrepresent the ionosphere. In order to verify the degree of misrepresentation by an auto-scaling program, we performed manual scaling of all 35,136 ionograms measured at Jeju (33.43°N, 126.30°E) throughout 2012. We compared our manually scaled parameters (foF2 and hmF2) with auto-scaled parameters that were obtained via the ARTIST5002 program. We classified five cases in terms of the erroneous scaling performed by the program. The results of the comparison indicate that the average differences with respect to foF2 and hmF2 between the two methods approximately correspond to 0.03 MHz and 4.1 km, respectively with corresponding standard deviations of 0.12 MHz and 9.58 km. Overall, 36 % of the auto-scaled results differ from the manually scaled results by the first decimal number. Therefore, future studies should be aware of the quality of auto-scaled parameters obtained via ARTIST5002. Hence, the results of the study recommend the use of manually scaled parameters (if available) for any serious applications.
Transdisciplinary Engineering Design Process

In recent years, the number of complex problems to be solved by engineers has multiplied exponentially. Transdisciplinary Engineering Design Process outlines a collaborative approach to the engineering design process that includes input from planners, economists, politicians, physicists, biologists, domain experts, and others that represent a wide variety of disciplines. As the author explains, by including other disciplines to have a voice, the process goes beyond traditional interdisciplinary design to a more productive and creative transdisciplinary process.
Efficiency‐enhanced Doherty power amplifier using Chireix‐like compensation technology

This article presents a novel efficiency‐enhanced Doherty power amplifier (DPA) by using a Chireix‐like compensation technique. This technique introduces a compensation circuit structure at the combiner to offset the phase difference effect of a DPA for enhancing drain efficiency. A DPA based on the proposed structure is fabricated with two 10 W GaN high electron mobility transistor (HEMT) transistors. The fabricated DPA with such proposed compensation structure manifests a measured saturated output power of 43.5 dBm and drain efficiency of 68% to 71% in the frequency range of 3.2 to 3.7 GHz. Forty‐five percent of drain efficiency can be achieved at 6 dB power back‐off. And the adjacent channel leakage ratio (ACLR) is better than −48.6 dBc with digital predistortion.
Electronic Active Calibration of Fluxgate Magnetometers

Fluxgate magnetometers require calibration methods appropriate to their application levels and particularities; however the development of fully controlled calibration procedures presents a particular challenge regarding the inevitable influence of the local geomagnetic field and other external interferences when a laboratory with magnetically shielded walls is not available. In that context, we discussed the development of an automated calibration method for fluxgate magnetometers, considering those limitations in time and space, and avoiding some of the problems commonly found in other proposed solutions for the same challenge. For this task, we designed and built a new set of high level procedures, electronic systems and software, which perform active testing and automated calibration of fluxgate magnetometers, considering some resource constraints and employing instruments commonly found in electronic calibration laboratories.
Charged Particle Penetration Distance and Mass Stopping Power Calculations on Some Nuclear Reactor Control Rod Materials

Insanligin karsilastigi artan enerji talebine olasi bir cozum, fisyon mekanizmasiyla calisan nukleer reaktorler olarak gosterilebilir. Bu tesislerin calismalarini takip edebilmek icin, aralarinda hayati oneme sahip olarak gosterilebilecek kontrol cubuklarinin da bulundugu ve tamami birlikte calisabilecek sekilde tasarlanmis pek cok ekipman bulunmaktadir. Bu bilesenlerin fiziksel-kimyasal ozellikleri ve farkli etkilesimlerdeki davranislari gibi malzeme ozellikleri yadsinamaz bir oneme sahiptir. Bu nedenle, bu bilesenlerin uretiminde kullanilan malzemelerle ilgili olasi tum bilgilerin toplanmasi son derece onemlidir. Bu onem goz onunde bulundurarak bu calismada, nukleer reaktor kontrol cubuklarinda kullanim olasiligi bulunan bazi materyaller icin kutle durdurma gucu ve yuklu parcacik giricilik mesafesi 1-50 MeV enerji araligindaki alfa, 3 He, triton, doteron ve protonlar icin en cok bilinen bilgisayar destekli hesaplama ve benzetim programlari olan GEANT4 ve MCNP kullanilarak yapilmistir. Her iki koddan elde edilen sonuclar grafikle gorsellestirilmis ve birbirleriyle kiyaslanmistir.
Dynamic anti‐windup compensator for fractional‐order system with time‐delay

This paper describes the results of introducing an additional dynamic element to an anti‐windup compensator from control quality and stability area anslysis viewpoint. The analyzed system consists of a first‐order plant with time delay and a fractional‐order PI controller, to present the discussed approach. The controller is tuned based on Hermite‐Biehler and Pontryagin theorems. In the paper, the stability analysis and tracking performance are presented based on both simulation and experimental results. The experiments have been performed using Inteco Modular Servo System with performance evaluated on the basis of the selected performance criterion, namely the Integral of Absolute Error, to verify the applicability of the proposed method. The results have proven that use of the additional dynamic element provides a wider range of controller parameters to ensure stability of the closed‐loop system and better tracking performance in comparison to the system without anti‐windup compensation or system with a standard anti‐windup compensator. It is actually the first time that this type of analysis for dynamic element compensation in anti‐windup framework has been presented for fractional‐order systems. In addition, all the obtained results are referred to the experimental data.
Review: Teaching Management: A Field Guide for Professors, Consultants, and Corporate Trainers

Figures Why this book on teaching management? 1. Fundamental elements in teaching 2. Levels of learning: one, two and three 3. Adult learning theory: it matters 4. Planning a course: trips and tips 5. Planning a class: no detail is too small 6. Lecturing: the possibilities and the perils 7. Managing discussions 8. Case method: fostering multidimensional learning 9. Role-playing 10. Case writing: crafting a vehicle of interest and impact 11. Case teaching notes: getting from here to there 12. Action learning 13. Experiential methods 14. Enhancing the conversation: audiovisual tools and techniques 15. Executive education: contributing to organizational competitive advantage 16. Using technology to teach management 17. Counseling students 18. Evaluating students: the twin tasks of certification and development 19. Teaching evaluations: feedback that can help and hurt 20. Research presentations 21. Managing a degree program: behind the 'glory' 22. Managing a nondegree client program: an overview 23. Dealing with the press 24. Managing yourself and your time Index.
A Stratigraphic Prediction Method Based on Machine Learning

Simulation of a geostratigraphic unit is of vital importance for the study of geoinformatics, as well as geoengineering planning and design. A traditional method depends on the guidance of expert experience, which is subjective and limited, thereby making the effective evaluation of a stratum simulation quite impossible. To solve this problem, this study proposes a machine learning method for a geostratigraphic series simulation. On the basis of a recurrent neural network, a sequence model of the stratum type and a sequence model of the stratum thickness is successively established. The performance of the model is improved in combination with expert-driven learning. Finally, a machine learning model is established for a geostratigraphic series simulation, and a three-dimensional (3D) geological modeling evaluation method is proposed which considers the stratum type and thickness. The results show that we can use machine learning in the simulation of a series. The series model based on machine learning can describe the real situation at wells, and it is a complimentary tool to the traditional 3D geological model. The prediction ability of the model is improved to a certain extent by including expert-driven learning. This study provides a novel approach for the simulation and prediction of a series by 3D geological modeling.
Design-Oriented Comprehensive Time-Domain Model for CLLC Class Isolated Bidirectional DC-DC Converter for Various Operation Modes

A comprehensive time-domain model of a CLLC class isolated bidirectional dc–dc converter (IBDC) is proposed in this article. Based on the circuit analysis and the solution of the state equations, analytical expressions of the state variables are provided. The model is a piecewise time-domain analytical model and can accurately describe the transformer currents and capacitor voltages under almost all basic types of control strategies, e.g., phase-shift control and frequency modulation control. With the model, the steady-state analysis of the IBDC can speed up evidently (up to 330 times faster compared to MATLAB/Simulink and more than 10 times compared to SIMPLIS and PLECS), which gives great support to parameter sweep and case comparison in the design procedure. By assigning specific parameters, the presented model can also be applied to the analysis of the LLC resonant IBDC or typical DAB IBDC since the LLC converter and DAB converter are similar to the CLLC converter in the circuit topology. The transformation of the model from CLLC to LLC/DAB is provided and several application examples are given. Finally, the simulation and experimental results are presented, verifying the effectiveness of the model.
Non Local Mirror Neutrinos with R=ct

Beginning with the observationally successful FLRW constraint of Riofrio, a classical alternative to $\Lambda$CDM, we introduce a mass gap correction to cosmology, incorporating a few aspects of the $\Lambda$CDM model, wherein both neutrinos and non local mirror neutrinos play a key role. Non local neutrinos are antineutrinos. The equivalence principle is mildly broken using McCulloch's approach to quantum inertia and a new holographic principle. There is no dark matter and no dark energy, and mirror neutrino states are informationally connected to the CMB. Consequences include (i) a present day temperature of $2.73$K arising as a mirror rest mass, (ii) an estimate of the observable mass of the universe and (iii) an effective sterile mass of $1.29$eV, permitted by current oscillation results.
A New Bio-Impedance Forceps Sensor for Measuring Electrical Conductivity of the Biological Tissues

Tissue electrical conductivity measurements are very important for diagnostic purposes. In this paper, an electrical bio-impedance sensor with a biopsy forceps shape was introduced for measuring electrical conductivity of the tissue inside the body. For this purpose, based on the Laplace’s equation and the forced boundary conditions in the mouth of the forceps, the relation between electrical conductivity of the tissue and measured electrical potential was analytically obtained. The obtained analytical formula was verified by modeling the electrical bio-impedance forceps and biological tissue in COMSOL software. A prototype of the designed bio-impedance forceps was fabricated and experimentally validated. The validation process was performed by measuring electrical conductivity of the Phosphate -Buffered Saline (PBS) solution with different concentrations. Finally, by measuring electrical impedance spectrum of pulmonary tissues in three different samples at a frequency band of 50 kHz to 5 MHz, it was found that this sensor could be potentially beneficial to discriminate tumoral tissues from healthy ones in biopsy process.
ETHANOL CLEARANCE RATE AS A FUNCTION OF AGE, GENDER, AND DRINKING PRACTICES

Accurate estimation of ethanol clearance rate is often necessary in order to calculate a blood alcohol concentration (BAC) at the time of an accident or arrest. To increase the precision of such estimates, the effects of gender, drinking practice and age on ethanol clearance were examined in a between-subjects factorial experiment. Subjects were dosed with alcohol for peak BACs of 85mg/dL or 105 mg/dL. They were breath tested frequently until their peak BAC, and then at hour intervals on the descending BAC curve. Using the post-peak BACs (three or more) an ethanol clearance rate for each subject was calculated with a linear regression analysis. Gender, drinking practice, and age were found to have statistically significant effects on ethanol clearance rates. (A) For the covering abstract see IRRD 893732.
Design and Performance Analysis of Active Inductor Based VCO for IEEE 802.11a/b/g/n/ac Applications

ABSTRACT This paper postulates a tunable active inductor-based voltage controlled oscillator for IEEE 802.11 a/b/g/n/ac applications in 90 nm CMOS process. In the designed VCO, the modified topology of the active inductor which uses regulated cascode is implemented along with tuning competency. The layout-based simulation has been performed considering parasitic resistances and capacitances. The designed VCO yields an oscillation frequency ranging from 1.93 GHz to 5.97 GHz having tuning scope of 102%, where the tuning voltages is varied from 0 V to 0.8 V. The power consumption varies from 0.97 mW to 3.32 mW, and the VCO provides a differential output power of 3.29 dBm to −4.76 dBm. The phase noise varies from −78.52 dBc/Hz to −70.45 dBc/Hz, and the figure of merit (FOM) has a value of −143.63 dBc/Hz @ 5.09 GHz frequency. The designed VCO has been passed through process corner analysis, Monte Carlo analysis, stability analysis and temperature swept analysis to evaluate its compatibility. Furthermore, the elimination of MOS varactor has reduced overall silicon area consumption (39.73 25.3). Finally, the designed VCO’s performance parameters have been compared with referred designs where it is illustrated that the designed VCO outperforms the others in most cases along with a good scope for implementing both 2.4 GHz and 5 GHz frequency that is, IEEE 802.11a/b/g/n/ac applications.