Miracle-dz/UniFAR-FTUs huggingface dataset:
A miniature 44% efficiency GaAs HBT power amplifier MMIC for the W-CDMA application

This paper presents a new linearizing circuit, which gives high power-added-efficiency with low distortion for the W-CDMA application. Since this linearizing circuit is realized by adding a small transistor, a resistor and a capacitor to the bias circuit, the required chip size is small enough and no extra loss in the signal path occurs. The designed 1.95 GHz two-stage power amplifier using HBTs shows 44% power-added-efficiency (PAE), 27.6 dBm output power and 21 dB gain with -37 dBc adjacent channel leakage power ratio (ACLR), at a supply voltage of 3.4 V. In contrast, the conventional power amplifier without linearizer shows 3 dB degradation in ACLR under the same conditions described above. Also, the chip size, which directly affects cost, is less than 1 mm/sup 2/.
Practical experiences and benefits with on-line monitoring systems for power transformers

To increase availability and to achieve optimised operating management, on-line condition monitoring for power transformers is useful and necessary. Based on the experiences, with a considerable amount of systems in operation, a generally applicable set-up of sensors is proposed. Furthermore the way of data acquisition, analysis and distribution by using a modern monitoring system connected to the Internet is described. By means of mathematical models the acquired measured data are converted to useful information for a reliable condition diagnosis. The evaluation of data acquired on-site shows the capability to detect problems within active part, bushings, on-load tap changer and cooling unit before they develop into major failures. Especially algorithms for the calculation of overload capacity are of increasing importance.
Determined Source Separation for Microphone Recordings Using IIR Filters

A method for determined blind source separation for microphone recordings is presented which attenuates the direct path cross-talk using IIR filters. The unmixing filters are derived by approximating the transmission paths between the sources and the microphones by a delay and a gain factor. For the evaluation, the proposed method is compared to three other approaches. Degradation of the separation performances are caused by fractional delays and the directivity of microphones and sources, which are discussed here. Advantages are low latency, low computational complexity and high sound quality.
A Delay Bound for a Network with Aggregate Scheduling

Given the increasing demand for services that can guarantee a maximum end-to-end delay in the Internet, it is important to understand the behaviour of different existing networks. We consider networks that implement scheduling per aggregate flow. We give a worst case bound that is valid for any network topology given the maximum hop count for every flow and the utilization at every link. Unfortunately, this bound is finite only for small utilization. Using the context of arrival and service curves we can improve the result for the case of a ring.
The User Is Always Right: A Practical Guide to Creating and Using Personas for the Web

How do we ensure that our Web sites actually give users what they need? What are the best ways to understand our users' goals, behaviors, and attitudes, and then turn that understanding into business results? Personas bring user research to life and make it actionable, ensuring we're making the right decisions based on the right information. This practical guide explains how to create and use personas to make your site more successful. The User Is Always Right: A Practical Guide to Creating and Using Personas takes you through each step of persona creation, including tips for conducting qualitative user research, new ways to apply quantitative research (such as surveys) to persona creation, various methods for generating persona segmentation, and proven techniques for making personas realistic. You'll also learn how to use personas effectively, from directing overall business strategy and prioritizing features and content to making detailed decisions about information architecture, content, and design.
Precedent-free fault isolation in a diesel engine exhaust gas recirculation system

In this paper, a recently introduced model-based method for precedent-free fault detection and isolation (FDI) is modified to deal with multiple input, multiple output (MIMO) systems and is applied to an automotive engine with exhaust gas recirculation (EGR) system. Using normal behavior data generated by a high fidelity engine simulation, the growing structure multiple model system (GSMMS) approach is used to construct dynamic models of normal behavior for the EGR system and its constituent subsystems. Using the GSMMS models as a foundation, anomalous behavior is detected whenever statistically significant departures of the most recent modeling residuals away from the modeling residuals displayed during normal behavior are observed. By reconnecting the anomaly detectors (ADs) to the constituent subsystems, EGR valve, cooler, and valve controller faults are isolated without the need for prior training using data corresponding to particular faulty system behaviors.
Revolutionary Design for Astronaut Exploration — Beyond the Bio‐Suit System

The Bio‐Suit System is designed to revolutionize human space exploration by providing enhanced astronaut extravehicular activity (EVA) locomotion and performance based on the concepts of a ‘second skin’ capability. The novel Bio‐Suit concept provides an overall exploration system realized through symbiotic relationships between a suite of advanced technologies, creative design, human modeling and analysis, and new mission operations techniques. By working at the intersection of engineering, design, life sciences and operations, new emergent capabilities and interrelationships result for applications to space missions, medical rehabilitation, and extreme sports activities. In many respects, the Bio‐Suit System mimics Nature (biomimetics). For example, the second skin is capable of augmenting our biological skin by providing mechanical counter‐pressure. We have designed and tested prototypes that prove mechanical counter‐pressure feasibility. The ‘epidermis’ of our second skin suit is patterned from 3D lase.
https://researchopenworld.com/the-construction-of-power-in-nepal-menstrual-restriction-and-rape/#

The widespread use of gender-based violence, especially against women, has been identified not only as a legal, but also as a major public health problem. Especially in Asia, traditional practices reflecting local health belief models lead to a number of major has related partitions, which include gender-based violence. Not only in India, but also in Nepal such traditional practices are wide spread. In Nepal, the most common problem is the “Chaupadhi” practice of menstrual segregation that leads to the death of women every year. Methodology: in our qualitative study we used different sources including political party programs and focus interviews in the Bharatpur region of Nepal to explore the cultural and health belief models that could contribute to lead different population groups to use menstrual segregation and other forms of gender-based violence such as rape. Results we identified a number of categories [health belief systems] that we are part of gender-based identities and this forms of gender-based violence as reflected in interviews and the public discourse. Conclusions: willingness to commit or permit violence is reflected in health belief systems and identity building, and a number of recommendations will be presented that we are drawn up as a reassignment of our project to reduce gender-based violence in Nepali communities.
Blockchain-based traceability in the food industry: requirements analysis along the food supply chain

Traceability has become an important aspect in supply chain management, particularly in safety-sensitive industries like food or pharmaceuticals. At the same time, blockchain arose as an innovative technology that has created excitement about its potential applications. Aim of this research paper is to analyze the requirements of the main stakeholders along the supply chain regarding a blockchain-based traceability system (BBTS). The supply chain is considered from agriculture to retail. The main result of this work is a specification framework, which consist of a supply chain process model describing activities relevant for food traceability, a collection of usage requirements formulated as data classes, a summary of technical requirements regarding data access, storage and processing, and interoperability requirements necessary to assure digital communication and permanent operability of the BBTS. Based on this, general application guidelines for digital information systems are derived and the blockchain technology is evaluated with regard to its potential in meeting requirements and challenges. A distinction between public and sensitive data appears to be necessary to assure traceability and trust in the supply chain. A two-part architecture involving a public permissioned blockchain network is proposed as the most promising basis for a digital traceability system in the food industry.
Fully integrated CMOS UWB pulse generator

The design of a fully integrated CMOS ultra-wideband (UWB) pulse generator for the 3.1–10.6 GHz frequency band is presented. The pulse generation is based on the filter impulse response technique. With such a technique, the pulse matches the FCC mask with no need for an expensive external filter. The layout of this circuit in a 0.13 µm CMOS technology shows a surface area of less than 0.57 mm2 and a power consumption of around 20 mW.
Simulation of ARCP converter with physics-based circuit simulator device models

Former simulation studies of the auxiliary resonant commutated pole (ARCP), a well-known high power soft-switching inverter, have invariably used simplified power device models, obtaining fast simulation speed, but sacrificing accuracy. In this research, we apply to the simulation of the ARCP converter physics-based IGBT and power diode models, which have been proven robust in the hard switching circuit simulation. With this approach, it is possible to obtain more detailed waveforms of the commutation process and more accurate estimation of the system losses.
Non-silicon mosfets and circuits with atomic layer deposited higher-kappa dielectrics

Dong, Lin Ph.D., Purdue University, December 2013. Non-Silicon MOSFETs and Circuits with Atomic Layer Deposited Higher-κ Dielectrics. Major Professor: Peide Ye. The quest for technologies beyond 14 nm node complementary metal-oxide-semiconductor (CMOS) devices has now called for research on higher-κ gate dielectrics integration with high mobility channel materials such as III-V semiconductors and germanium. Ternary oxides, such as La2−xYxO3 and LaAlO3, have been considered as strong candidates due to their high dielectric constants and good thermal stability. Meanwhile, the unique abilities of delivering large area uniform thin film, excellent controlling of composition and thickness to an atomic level, which are keys to ultra-scaled devices, have made atomic layer deposition (ALD) technique an excellent choice. In this thesis, we systematically study the atomic layer epitaxy (ALE) process realized by ALD, ALE higher-k dielectric integration, GaAs nMOSFETs and pMOSFETs on (111)A substrates, and their related CMOS digital logic gate circuits as well as ring oscillators. A record high drain current of 376 mA/mm and a small SS of 74 mV/dec are obtained from planar GaAs nMOSFETs with 1μm gate length. La2−xYxO3/GaAs(111)A interfaces are systematically investigated in both material and electrical aspects. The work has expanded the near 50 years GaAs MOSFETs research to an unprecedented level. Following the GaAs work, Ge nand p-MOSFETs with epitaxial interfaces are also fabricated and studied. Beyond the conventional semiconductors, the complex oxide channel material SrTiO3 is also explored. Well-
The reputation of Australian football league umpires

Sport and media have a long and interwoven relationship. Managing the media in relation to branding in professional sport has often had it challenges. The Australian Football League (AFL) dedicates considerable effort to media management in order to carefully manage its brand. Part of this brand involves the performance of the matchday officials, the umpires. This article examines traditional and social media commentary on the performance of umpires and its possible effect on the AFL's desired reputation. There is a growing demand for officials in community/minor non-professional AFL competitions. For many years the AFL Commission has been challenged in recruiting and supplying umpires to minor leagues that the AFL control. Many in the industry believe the umpires' negative reputation with the football public stifles the AFL's ability to recruit and hold on to umpires in order to meet this demand. The aim of this article is to identify the current reputation for AFL field umpires through analysing commentary in traditional and social media. The findings provide media solutions to managing and/or retaining a more positive umpires' reputation with the public stakeholders.
The 2006 Ultrasonic Benchmark Problem — FDTD Simulations in 2D

The 2006 ultrasonic benchmark problem involves pulse‐echo angle beam scanning of a notch located on an inclined planar back surface. The response from a side‐drilled hole is to be used as a reference. The models are to simulate (a) the peak‐to‐peak B‐scan P‐ and SV‐ responses of the slots normalized by the appropriate SDH response and (b) the maximum peak‐to‐peak corner response of the slots (either mode‐converted or not). At CNDE, several simulation tools are being developed to assess/predict UT response for various geometries. The Finite‐Difference‐Time‐Difference (FDTD) scheme is one such simulation tool that has been under development in 1D, 2D and 3D. The FDTD is an explicit time domain tool that can simulate pulse propagation characteristics in acoustic/elastic media. The computational domain is limited by implementing Perfectly Matched Layers (PMLs) at the domain boundaries. We present the results of calculations based on 2D FDTD to determine the response of rectangular shaped surface‐breaking defe.
Immune response of standard and delayed hepatitis B vaccination schedules among medical students – a cross sectional comparative study

Context: Health care professionals including medical students face a high risk for Hepatitis B transmission. Hepatitis B vaccination is routinely administered to health care providers and medical students. However due to the rigors of medical training, medical students miss doses of the vaccine. There is scant research on immune response following delayed immunization schedule. Aims: To compare immune response as measured by anti-HBsAg antibody levels in medical students who followed delayed and standard vaccination schedule of Hepatitis B vaccination. Settings and designs: A cross sectional comparative study was conducted among randomly selected 50 medical students of a medical college in Chennai. Methods and Materials: Data on demographics, Hepatitis B immunization details and other covariants were collected. A two step immunoassay, using Chemiluminescent Microparticle Immunoassay (CMIA) technology was used for the quantitative determination of anti-HBs in human serum and plasma. The collected data was analyzed using statistical software IBM SPSS Statistical Package version 21. Results: Of the students, 36 (72%) were females and 14 (28%) were males. Among the participants who followed standard immunization schedule without delay, 6.3% had poor immune response, and 12.5% were hypo-responsive. Among the participants who followed delayed schedule, 2.9% were non-responsive and 5.9% were hypo-responsive. After adjusting for age, gender, BMI and delay in schedule, it was found that greater gap between dose 1 and dose 2(p = 0.001) and gap between dose 2 and dose 3(p = 0.004) significantly influenced the anti-HBsAg antibody titres. Conclusion: It is seen that a delayed or altered vaccination schedule did not seriously affect the immune response among medical students. Therefore, the Indian Journal of Applied Microbiology ISSN (Online): 2454­289X, ISSN (Print): 2249­8400 Copyright © 2019 IJAM, Chennai, India Volume 22 Number 1 April June 2019, pp. 20-30 Immune response of standard and delayed hepatitis B vaccination schedules among medical . 21 INDIAN JOURNAL OF APPLIED MICROBIOLOGY Vol. 22 No. 1 April June 2019 focus should be on completing the immunization schedule of Hepatitis B at the best available opportunity.
Abschreibungsraten allgemeiner und beruflicher Ausbildungsinhalte - empirische Evidenz auf Basis subjektiver Einschätzungen / Depreciation Rates of General and Vocational Training Capital - Evidence Based on Subjective Ratings

Summary The computer revolution together with educational expansion has led to dramatic changes in the structure of the workforce and in the organisation of workplaces in the last four decades. These developments should have different impacts on the use of vocational and general skills. This study compares depreciation rates of general and specific training capital among West German workers between 1979 and 1999. In this time the personal computer entered the workplaces and the share of workers with a university degree doubled. Econometric estimates based on respondent’s subjective ratings of the share of training skills applied to the current job indicate that depreciation rates of vocational skills increased significantly. In contrast, there is no evidence for positive depreciation rates among university graduates with general training capital at all. The role of measurement errors in respondent’s ratings for the estimated depreciation rates is analysed with sensitivity tests. The findings lend some support to the view that there is obsolescence of vocational skills in times of rapid technological change and educational expansion.
Differential phase shift keying direct sequence spread spectrum single SAW based correlator receiver

This paper presents a SAW based correlator receiver for a Differential Phase Shift Keying Direct Sequence Spread Spectrum (DPSK/DSSS) receiver. The DPSK modulation format allows the noncoherent data demodulation while the SAW device correlator acts as the despreading operator. In a conventional DPSK receiver, the received signal is normally split into a lower and upper path. One of the paths contains a correlator, while the other path contains a one data bit delay element and another correlator. The outputs of both paths are then fed to a noncoherent data demodulator. This paper combines both the delay element and the two correlators in a single SAW device, and therefore a better temperature tracking mechanism, simplicity, as well as the elimination of the broadband SAW delay line are achieved. The SAW structure contains a broadband SAW transducer, and two serially coded Pseudo Noise (PN) DPSK filters. The SAW based correlator was built on lithium tantalate. The center frequency was set to 150 MHz, with a 63 chip PN spreading code and a data rate of 300 kbps. Experimental measurements in both the time and frequency domains were performed and were compared to computer simulation predictions
Temperature distribution in the dielectric insulation of distribution cables

A theoretical model is developed to accurately determine the rise in the temperature of the core, the dielectric insulation, and the soil surrounding a single-phase distribution cable. The model is capable of predicting the temperature distribution as a function of electric current and cable properties. The model is validated experimentally for an XLPE (cross-linked polyethylene) distribution cable. The temperature of the insulation of the cable in the ground is higher than that of the cable in air for the same current level. The particular cable used can carry up to 1.2 of the rated current in air without exceeding the maximum allowable temperature. <<ETX>>
Mandatory Security and Performance of Services in Asbestos

This thesis presents the design and implementation for several system services, including network access and database storage, on a new operating system design, Asbestos. Using the security mechanism provided by Asbestos, Asbestos labels, these services are used to support the construction of secure Web applications. The network and database services serve as the foundation for a Web server that supports mandatory security policies, such that even a compromised Web application cannot improperly disclose private data. The methods used in this thesis allow Web application developers to be freed from worries about flawed applications, if developers are willing to place trust in the underlying services used. Thesis Supervisor: M. Frans Kaashoek Title: Professor
Effects of Anthropogenic Aerosols on a Heavy Rainstorm in Beijing

A heavy rainstorm occurred in Beijing on 19–20 July 2016. The Weather Research and Forecasting Model coupled with Chemistry (WRF-Chem) was used to investigate the effects of anthropogenic aerosols on precipitation and microphysical processes. Three conditions were simulated by altering the anthropogenic emissions. When the anthropogenic emissions were increased by 10 times, the area-average accumulated rainfall amount and maximum accumulated rainfall amount both decreased. The cloud water mixing ratio increased and the rain mixing ratio decreased. The radii of cloud droplets decreased, and the collision efficiency of cloud water by rain and the autoconversion rate of cloud water into rain were both low. When the anthropogenic emission was 10% of the original emission, the area of accumulated rainfall amounts greater than 25 mm in the Beijing area was 10% larger than those of the other two tests. The collision efficiency and autoconversion rate of cloud water into rain were high for large contact areas and large cloud droplets. The graupel mixing ratio was the largest. Thus, the process of melting of graupel into rain was the largest. In the WRF-Chem model, the aerosols did not participate as ice nuclei (IN) in the ice-phase microphysical processes, and therefore the aerosols could influence only the warm rain processes and mix-phased processes near the freezing level line. For no influence on ice-phase microphysical processes, the snow and ice mixing ratios did not show many differences among the different tests.
Digital Remains and End of Life Traditions

In this article we present a concept for a ubiquitous service that allows memories to be saved and stored during an individual's lifetime and later, after death, for those digital remains to be published and experienced at the specific geographic location where they were created. Through this concept we explore ways to combine modern technology with century old habits at the end of life. We ask: "How do users value digital remains and how could it be used in accordance with user requirements? " This study suggests that awareness of digital remains is very low, and few people have considered what to do with their digital remains or come in contact with other person‟s. People are interested both in experiencing and leaving digital remains for others to experience though few get the chance to do neither. The best caretakers of digital remains are friends, family and close relatives. Digital remains are seen as valuable source of affective and historical information. Present end of life technology are mostly augmentations of old traditions, not new phenomenons. The novel approach, as presented in the concept, lies in the fact that it will become possible to store, preserve and especially experience digital remains, from common and famous alike, in much greater depth and scale than ever before.