Miracle-dz/UniFAR-FTUs huggingface dataset:
Calculating the Parameters of the Short-Range Microwave Information Channel Resistant to Signal Fading

Using a short-range microwave radio line allows to ensure high noise-resistance during transmitting discrete information to the vehicle with relative ease of technical implementation, including the case when the vehicle is in motion. Energy calculation of the short-range radio line is carried out. Calculation of the noise-resistance of a short range duplex channel resistant to signal fading for coherent detection is carried out. A family of dependences of the signal power at the receiver input on relative positions of the receiving and transmitting antennas is obtained. The dependences of the error probability from the transmitted signal element on the signal-to-noise ratio are found for two practically significant cases: with and without the dominant brilliant point. By using the obtained expressions for both models, the dependences of the error probability on the signal-to-noise ratio are constructed for different parameters of the reflected signal and the directional characteristics of the transmitting and receiving antennas. It is shown that with fading of the microwave signal the error probability in the duplex channel can reach values smaller than 10−6…10−8 per sign.
Biomimetic visual navigation architectures for autonomous intelligent systems

Intelligent systems with even the bare minimum of sophistication require extensive computational power and complex processing units. At the same time, small insects like flies are adept at visual navigation, target pursuit, motionless hovering flight, and obstacle avoidance. Thus, biology provides engineers with an unconventional approach to solve complicated engineering design problems. Computational models of the neuronal architecture of the insect brain can provide algorithms for the development of software and hardware to accomplish sophisticated visual navigation tasks. In this research, we investigate biologically-inspired collision avoidance models primarily based on visual motion. We first present a comparative analysis of two leading collision avoidance models hypothesized in the insect brain. The models are simulated and mathematically analyzed for collision and non-collision scenarios. Based on this analysis it is proposed that along with the motion information, an estimate of distance from the obstacle is also required to reliably avoid collisions. We present models with tracking capability as solutions to this problem and show that tracking indirectly computes a measure of distance. We present a camera-based implementation of the collision avoidance models with tracking. The camera-based system was tested for collision and non-collision scenarios to verify our simulation claims that tracking improves collision avoidance. Next, we present a direct approach to estimate the distance from an obstacle by utilizing non-directional speed. We describe two simplified non-directional speed estimation models: the non-directional multiplication (ND-M) sensor, and the non-directional summation (ND-S) sensor. We also analyze the mathematical basis of their speed sensitivity. An analog VLSI chip was designed and fabricated to implement these models in silicon. The chip was fabricated in a 0.18 μm process and its characterization results are reported here. As future work, the tracking algorithm and the collision avoidance models may be implemented as a sensor chip and used for autonomous navigation by intelligent systems.
Design, implementation and flight testing of PIF autopilots for general aviation aircraft

The designs of Proportional-Integrated-Filter (PIF) auto-pilots for a General Aviation (NAVION) aircraft are presented. The PIF autopilot uses the sampled-data regulator and command generator tracking to determine roll select, pitch select, heading select, altitude select and localizer/glideslope capture and hold autopilot modes. The PIF control law uses typical General Aviation sensors for state feedback, command error integration for command tracking, digital complementary filtering and analog prefiltering for sensor noise suppression, a control filter for computation delay accommodation and the incremental form to eliminate trim values in implementation. Theoretical developments described in detail, were needed to combine the sampled-data regulator with command generator tracking for use as a digital flight control system. The digital PIF autopilots are evaluated using closed-loop eigenvalues and linear simulations. The implementation of the PIF autopilots in a digital flight computer using a high order language (FORTRAN) is briefly described. The successful flight test results for each PIF autopilot mode is presented.
Israel

Israel’s response to population ageing has included policies increasing pension age, ﬂexible working, and privatisation of pensions. These policies have increased poverty risks for those experiencing exclusion and isolation and limited access to housing, education, quality jobs, and healthcare services. In this context, polarised gender/class positions leave women at higher risk of poverty in old age, particularly for women not living with a partner or when a pension related to a partner’s work life is not available. Only a minority of Israeli women currently extend their working lives, despite very low state allowances for older people. Policymakers have paid little attention to differences between men and women or among women in different circumstances. This has contributed to an assumption that raising pension age is an appropriate one-size-ﬁts-all solution when it clearly is not.
Emotion Detection using Automatic Facial Recognition

This paper covers the basics of facial recognition and discusses a few different methods for facial recognition. The paper then moves towards methods for feature extraction and emotion detection where recent work is the focal point. The end goal of the research within this paper is to produce a program that will take in an image as input, scan for a face, and determine the emotion that face is portraying. To accomplish this, thresholding methods and geometric facial features will be used. The future work section provides more detail on the goal of this research.
A Preliminary Study of Solar Powered Aircraft and Associated Power Trains

The feasibility of regeneratively powered solar high altitude powered platform (HAPP) remotely piloted vehicles was assessed. Those technologies which must be pursued to make long duration solar HAPPs feasible are recommended. A methodology which involved characterization and parametric analysis of roughly two dozen variables to determine vehicles capable of fulfilling the primary mission are defined. One of these vehicles was then conceptually designed. Variations of each major design parameter were investigated along with state-of-the-art changes in power train component capabilities. The midlatitude mission studied would be attainable by a solar HAPP if fuel cell, electrolyzer and photovoltaic technologies are pursued. Vehicles will be very large and have very lightweight structures in order to attain the combinations of altitude and duration required by the primary mission.
Interfejs EMG do sterownika programowalnego PLC

In this paper the integrated construction of HMI interface, dedicated to cooperation with programmable logic controller was presented. Modular structure of interface, installed inside casing for mounting on DIN rail, allows installing it in standard control cabinets along with other automation components. Operation of PLC’s subroutine for cooperation with presented interface as well as results of its investigations during practical tests was shown. (EMG interface for PLC controller) Słowa kluczowe: Sygnał elektromiograficzny, interfejs, sterownik PLC.
When A Common Symptom of a Neonate Become an Unusual Diagnosis: A Case Report Of HMG-Coa Lyase Deficiency with a Novel Mutation

3-Hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) lyase deficiency is a rare inborn error of metabolism characterized by recurrent metabolic crises caused by fasting, intercurrent illness and excessive physical exercise. Non ketotic hy- poglycemia is normally the cause of primary symptoms but without an imme-diate treatment the illness can evolve into a worsening metabolic state resem- bling the Reye's syndrome that may cause the patient's death. We report a neonate with some clinical and therapeutic features not previously described mutation in HMGCL gene. The genetic analysis revealed a novel homozygous c.272T>A(p.Val91Asp) mutation in HMGCL gene. HMG-CoA lyase defi- ciency should be thought in the patients with hypoketotic hypoglycemia, hyperammonemia, elevated liver function tests and metabolic acidosis.
Badanie odporności zespołów awioniki statków powietrznych na narażenia LEMP

Lightning effects observed on aircraft wiring and procedure of lightning immunity tests of avionics were presented. Verification methods of susceptibility to induced transients have been characterized. Exemplary immunity test of powered SMPS power supply with the use of cable bundle method was performed. The test stand with single stroke generator available in the Laboratory of lightning immunity tests of avionics at Rzeszow University of Technology was used. It is dedicated to conduct tests according to DO-160 standard. In the future it is planned to carry out a series of test to obtain input surge impedances. (LEMP immunity test of aircraft avionics). Słowa kluczowe: LEMP, awionika, odporność na zaburzenia, próby pojedynczymi udarami napięciowymi i prądowymi.
GNSS BASED ELECTRONIC TOLL COLLECTION SYSTEM OF GUARANTEED PERFORMANCES

During 2005 the first GPS based ETC system in the world, the German Toll Collect, started-up operations. GNSS appears as the most flexible and costefficient technology to implement large-scale ETC systems. However, due to the nature of GNSS position errors, GNSS-based ETC still has some constraints to be overcome. In the Toll Collect system, additional sensors and side infrastructure are used resulting in a complex and costly system. Thispaper presents an innovative ETC system based on the use of a GNSS integrity service, as Galileo, combined with algorithms that ensure position integrity to efficiently overcome such problems. For the covering abstract see ITRD E134653.
Women Empowerment and Frequency of Meal Intake Among Children in Ghana

BackgroundQuality nutrition is an important basis of health and well-being, especially for children as their bodies need to grow, develop and reach their physical and mental potential. Women’s empowerment is not only important for women’s human rights, but also improves nutrition outcomes of both mothers and their children. This study sought to investigate the association between women’s empowerment and minimum meal frequency in Ghana.MethodsThe study used data from the 2014 Ghana Demographic and Health Survey (GDHS). A sample of 1,640 mother-child (6-23 months) dyad was used and univariate and multiple linear regression techniques were applied.ResultsDecisions on large household purchases (β=0.351, p<0.01) and family visits (β=0.743, p<0.01), ownership over house (β=-0.245, p<0.10), age of child (β=1.387, p<0.01), mother’s educational attainment (β=0.496, p<0.10) and residence (β=-0.298, p<0.10) were significantly associated with minimum meal frequency in Ghana.ConclusionMinimum meal frequency was largely influenced by economic and socio-familial empowerment of women as decisions on large household purchases and family visits showed association with minimum meal frequency. Interventional programs should target households and mothers with lower socio-demographics characteristics such as lower educational level.
Modelling and simulation of an autonomous underwater vehicle

In this thesis the mathematical modelling and simulation of an autonomous underwater vehicle is presented. A generic six degree of freedom model suitable for AUV control applications is presented. This model is then tailored to the AUV testbed developed by IMT. The model parameters are determined from vehicle geometry alone. In addition to this, a linear model is presented and analysed in order to determine the modes of motion for AUV. The development of a generic visualisation system suitable for underwater vehicle simulations is also presented. A generic MATLAB based AUV simulation system is developed, and used to supply the visualisation system with the necessary simulation data. Lastly, two example simulations are shown.
Reduced-Order Blade Mistuning Analysis Techniques Developed for the Robust Design of Engine Rotors

The primary objective of this research program is to develop vibration analysis tools, design tools, and design strategies to significantly improve the safety and robustness of turbine engine rotors. Bladed disks in turbine engines always feature small, random blade-to-blade differences, or mistuning. Mistuning can lead to a dramatic increase in blade forced-response amplitudes and stresses. Ultimately, this results in high-cycle fatigue, which is a major safety and cost concern. In this research program, the necessary steps will be taken to transform a state-of-the-art vibration analysis tool, the Turbo-Reduce forced-response prediction code, into an effective design tool by enhancing and extending the underlying modeling and analysis methods. Furthermore, novel techniques will be developed to assess the safety of a given design. In particular, a procedure will be established for using eigenfrequency curve veerings to identify "danger zones" in the operating conditions--ranges of rotational speeds and engine orders in which there is a great risk that the rotor blades will suffer high stresses. This work also will aid statistical studies of the forced response by reducing the necessary number of simulations. Finally, new strategies for improving the design of rotors will be pursued. Several methods will be investigated, including the use of intentional mistuning patterns to mitigate the harmful effects of random mistuning, and the modification of disk stiffness to avoid reaching critical values of interblade coupling in the desired operating range. Recent research progress is summarized in the following paragraphs. First, significant progress was made in the development of the component mode mistuning (CMM) and static mode compensation (SMC) methods for reduced-order modeling of mistuned bladed disks (see the following figure). The CMM method has been formalized and extended to allow a general treatment of mistuning. In addition, CMM allows individual mode mistuning, which accounts for the realistic effects of local variations in blade properties that lead to different mistuning values for different mode types (e.g., mistuning of the first torsion mode versus the second flexural mode). The accuracy and efficiency of the CMM method and the corresponding Turbo-Reduce code were validated for an example finite element model of a bladed disk.
25 Years of Research into the Management of eTechnology Projects

Over the last 25 years, information technology has evolved from intra-organizational systems to inter-organizational electronic technologies (eTechnology) that span organizations and industries and to extra-organizational systems delivered via the Internet, which involve individuals rather than organizationss. Project management research has largely sought reasons for project outcomes (Factor Research), and considered projects either as a process (Engineering Tradition) or as a form of organization (Social Science Tradition). This meta-analysis of 284 research papers identified key findings that provide insights and guidance for eTechnology project management in different technical and organizational environments. As the management context of eTechnology projects changed and project implementation moved beyond the control of a single organization, research focus shifted to examining topics within inter-organizational environments. Although some shift in focus occurred towards the social aspects of eTechnology project management, there was comparatively little use of multiple levels of analysis or interdisciplinary research within the Social Science Tradition.
Codecs

Accessories: BARIXCABLESET Breakout Cable $50.00 Barix Encoder/Decoder/Codec Audio Systems The Barix Instreamer 100 MP3 audio encoder is a versatile, network-enabled analog and digital audio-to-Ethernet converter for broadcast audio distribution. It converts audio from an analog or digital device into high-quality MP3 streams. The audio is encoded in real-time, and the generated audio stream can be distributed, via an IP-based network or the Internet, to one or more receivers or Shoutcast/Icecast-servers. It can be easily managed via a web browser interface using PCs, web pads, PDAs or other web-enabled devices.
A continuum model of plant root growth

approved: Redacted for Privacy LarrvlBoersma The continuum theory provides a framework in which the growth of a plant root as a dynamic process involving interactions among transport of water and solute, cell division, and the subsequent cell elongation can be described. A plant root is modeled as a one dimensional, multiphase, mathematical continuum. The network of cell walls constitute the solid phase of the system. The symplast and the apoplast pathways reside in this network of cell walls. Water and carbohydrates move in opposite directions through the apoplast and symplast pathways within the deforming network of cell walls. The division and elongation of cells depends on the mechanical stress imposed on the cell walls, the rate of metabolic stress relaxation process, and the physical properties of the cell walls. The model consists of five systems of differential equations. The kinematic equations are derived which allow, specifically, the different roles of cell division and elongation in root growth to be considered. These provide the reference system of the model. Equations of water transport in the coupled system of apoplast and symplast pathways are derived from considerations of theories of transport in the porous media and the cellular and membrane properties of the plant root. Equations of solute transport are derived by co 'idering, specifically, the mechanisms involved in solute transport both at the membranes separating individual cells and within the cytoplasm. The rate of cell elongation is described as a function of the mechanical stress in the cell walls, the viscoelastic properties of the cell walls, and a metabolically controlled strain energy relaxation process. Growth in the meristem is modeled as the result of continuous cell elongation and division. The equations of water and solute transport, cell elongation, and meristem growth are solved simultaneously under the reference system provided by the kinematic theory. The model is used to examine the effects of soil water stress, soil resistance to root penetration, and temperature, as well as the carbohydrate supply from the upper part of the plant on the dynamic process of root elongation. The close correspondence between the material coordinate system and the underlying cellular structure of the root allows the comparison between the continuum theory and the results of cell growth studies. Agreement of the model predictions of the pattern of growth along the root axis, as well as the effects of temperature and soil water stress on root growth, with the experimental measurements reported in the literature provides the justification for the theories. A Continuum Model of Plant Root Growth
A Novel variation-tolerant 9T SRAM design for nanoscale CMOS

As the feature sizes decrease, understanding manufacturing variations becomes essential to effectively design robust circuits. Manufacturing variations occur when process parameters deviate from their ideal or expected values, resulting in variations in device characteristics. Variations in the device characteristics cause the circuit to deviate from its expected behavior resulting in circuit instability, performance degradation, and yield loss. Both from an economic and performance standpoint, the yield and performance of Static Random Access Memories (SRAMs) are of great importance to the modern System-onChip designs. SRAM bitcells typically employ well-matched, minimum-sized transistors which make them highly sensitive to process variations. To overcome these challenges, researchers have proposed different topologies for SRAMs with 8T and 10T SRAM designs. These designs improve the cell stability but suffer from bitline-leakage noise, placing constraints on the number of cells shared by each bitline. These designs also have substantial area overhead when compared to the traditional 6T design. In this work, the published SRAM designs are characterized using commercial CMOS 65 nm models and are compared based on critical SRAM parameters like read stability, write stability, bitline leakage and the impact of process variations. Furthermore, a single-ended 9T SRAM design is proposed that enhances data stability and simultaneously addresses the bitline leakage problem. The proposed design also satisfies the yield criterion to achieve 90% yield for a 1Mb SRAM array in the presence of process variations.
Experimental and numerical studies of fuel spray

In modern Internal Combustion (IC) engines, the fuel spray atomization process is known to play a key role in affecting mixture formation, combustion efficiency and soot emissions. Therefore, a thorough understanding of the fuel spray characteristics and atomization process is of great importance. In this study, the fuel spray of modern Gasoline Direct Injection (GDI) engines and diesel engines has been experimentally and numerically studied. At the same time, optimized physical-numerical spray breakup models for the spray simulation have been developed and validated.
Living Together in Space: The International Space Station Internal Active Thermal Control System Issues and Solutions-Sustaining Engineering Activities at the Marshall Space Flight Center From 1998 to 2005

On board the International Space Station, heat generated by the crew and equipment is removed by the internal active thermal control system to maintain a comfortable working environment and prevent equipment overheating. Test facilities simulating the internal active thermal control system (IATCS) were constructed at the Marshall Space Flight Center as part of the sustaining engineering activities to address concerns related to operational issues, equipment capability, and reliability. A full-scale functional simulator of the Destiny lab module IATCS was constructed and activated prior to launch of Destiny in 2001. This facility simulates the flow and thermal characteristics of the flight system and has a similar control interface. A subscale simulator was built, and activated in 2000, with special attention to materials and proportions of wetted surfaces to address issues related to changes in fluid chemistry, material corrosion, and microbial activity. The flight issues that have arisen and the tests performed using the simulator facilities are discussed in detail. In addition, other test facilities at the MSFC have been used to perform specific tests related to IATCS issues. Future testing is discussed as well as potential modifications to the simulators to enhance their utility.
Errors in Web Surveys

First, however, we have to separate different types of Web surveys (Couper, in press). Unfortunately, the term “Web survey” is implicitly associated with non-professional, ad-hoc and self-selected forms on the Web, because they are the most numerous and most noticeable types of Web survey data collection. Today, the notion of “Web survey” thus already contains a flavour of low quality, what is not the case with “telephone surveys”, where we automatically assume a RDD or similar professional undertaking and not some call-in telephone survey.