gebhart/patrepeval huggingface dataset:
A novel fully integrated antenna switch for 5-6 GHz wireless LAN systems (2006)

A novel Tx/Rx switch for single antenna 5-6 GHz wireless LAN is presented. The proposed solution allows to wire on-chip the output of the power amplifier and the input of the low noise amplifier directly to the antenna. The circuit is based on the so called boot strapped inductor approach and does not require any external components. It gives better performance with respect to the RF front-end which commonly use PIN diodes as switching element, it is fully integrated and does not require any additional technological steps. The operating principle is demonstrated and the most representative performances are summarized.
Introduction to microcomputing (1982)

From the Publisher:
This 6800-based presentation gives detailed coverage of flowcharting, algorithm development, and assembly language, while providing all the necessary skills and background for programming microcomputers. New to the Second Edition are chapters on interfacing the 6800, interfacing the PIA, other microprocessors in the 6800 family, and the 6809 microprocessor. Incorporates many pedagogical aids: learning objectives begin each chapter, new terms appear in boldface, worked examples illustrate concepts, and review questions conclude each chapter. Contains two extensive sets of exercises: Set A, with answers in the back of the book, and Set B, with answers in a separate Solutions Manual.
Automatic fringe analysis with a computer image-processing system (1983)

The application of a general-purpose image-processing computer system to automatic fringe analysis is presented. Three areas of application have been examined where the use of a system based on a random access frame store has enabled a processing algorithm to be developed to suit a specific problem. Furthermore, it has enabled automatic analysis to be performed with complex and noisy data. The applications considered are strain measurement by speckle interferometry, position location in three axes, and fault detection in holographic nondestructive testing. A brief description of each problem is presented, followed by a description of the processing algorithm, results, and timings.
Antifungal Therapy: Lessons Learned over the Past 27 Years (2006)

As principal investigator of the National Institute of Allergy and Infectious Diseases-sponsored Mycoses Study Group for the past 27 years, I have been fortunate to play a role in the many advances in the field of clinical mycology and antifungal therapy. For the Finland lecture, I will briefly discuss the development of the Mycoses Study Group, provide an overview of the currently available antifungal agents, and describe advances and lessons related to the treatment and management of cryptococcal meningitis (the most common form of fungal meningitis), 3 important endemic mycoses (namely, blastomycosis, histoplasmosis, and coccidioidomycosis), candidemia and invasive candidiasis (the most common forms of nosocomial fungal disease), and invasive aspergillosis (the most common form of invasive mould disease). My concluding remarks will address the increasing hurdles and challenges, as well as the rewards, facing investigators who focus on clinical trials.
Interconnect Delay Fault Test on Boards and SoCs with Multiple Clock Domains (2006)

This paper introduces an efficient interconnect delay fault test (IDFT) controller on boards and SoCs with IEEE 1149.1 and IEEE 1500 wrappers. By capturing the transition signals launched during one system clock, interconnect delay faults operated by different system clocks can be effectively tested with our technique. The IDFT controller proposed does not require any modification on boundary scan cells, instead very simple logic needs to be plugged around the TAP controller. Complete compatibility with the IEEE 1149.1 and IEEE 1500 standards is preserved and the superiority of this approach is verified through design experiments
Mechanical fault detection in an elevator by remote monitoring (2008)

The elevator system is one of the most common applications of the induction motor as it is used in many buildings. The safety and reliability of an elevator system is of great importance as it carries people and its failure can result in unplanned outages making the building very uncomfortable. Usually, the ordinary inspections are not able to detect some early stage faults in the elevator system such as the ones due to the building wall fissures and movements, resulting in misalignment of the elevator guides. This paper presents a method that uses the induction motor of the elevator system as a sensor in order to detect this kind of mechanical fault.
<title>Acousto-optical interaction bandwidth of more than 2 GHz</title> (1996)

The way of extension of acousto-optical interaction frequency bandwidth to more than one octave is suggested. The main principle used for this aim is to design the electro-acoustical multi-element transducer with variable, along its length, parameters. In such a case to each frequency point inside chosen band exists the region of the transducer's length where, from one hand, the condition for good excitation of sound waves is fulfilled and from the other hand the Bragg condition is also fulfilled because of closed coincidence of real and necessary frequency dependencies of Bragg angle and of the angle of sound wave front inclination. This window moves from one end of the transducer to the other when frequency changes from minimum to maximum one inside the band. The closer real angle frequency dependence follows to necessary one than larger the length of transducer can be done and than more higher the diffraction efficiency can be reached.
Essays on the Economics of Electronic Commerce and Social Networks (2015)

This dissertation studies the economics of electronic commerce and social networks. The first essay, "Market Mechanisms in Online Crowdfunding," systematically compares auctions with a platform-mandated posted-price mechanism in online crowdfunding. We exploit a regime change from auctions to platform-mandated posted prices on a debt-based crowdfunding platform. We develop a game-theoretic model that yields empirically testable hypotheses, then test them using detailed transactions data. Consistent with our hypotheses, we find that after the regime change, loans are funded with higher probability and higher interest rates. More important, all else equal, loans funded under the posted-price regime are more likely to default. While the posted prices may be faster than auctions that rely on the "crowd" to discover prices, auctions are not necessarily inferior in terms of overall social welfare. The essay, "'Smart Money': Institutional Investors in Online Crowdfunding," studies institutional investors and their interactions with retail investors in online crowdfunding. Given their expertise, institutional investors are often referred to as "smart money" in financial markets, in the sense that these professional have selection ability and receive higher returns from their securities. We study whether institutional investors are indeed better able to screen borrowers in the marketplace than, and have any significant impacts on the behaviors of, retail investors. We find that although institutional investors indeed behave differently in terms of portfolio size and diversification strategies, their portfolios do not necessarily outperform those of retail investors. Institutional investors' bids have significant influence on the bidding strategies of retail investors, as well as final transaction outcomes. We find that this phenomenon is driven by the designation of "institutional investors" rather than just the size of their portfolios. The last essay, "For Whom to Tweet? A Study of a Large-Scale Social Network," studies the effects of peer-groups sizes on individuals' contributions to public goods - tweets - in a large-scale and influential online social network. We attribute the highly-skewed distribution of tweets, which is observed from the network, to an individual's conflicting incentives of free-riding and maximizing social influence. We exploit the asymmetry of an individual's peer groups (followers and followees, groups of people following and being followed by the individual respectively) to disentangle these incentives, and devise empirical strategies to deal with the endogenous formation of one's peer groups. We find a larger group of followees leads an individual to tweet less, while a larger group of followers leads an individual to tweet more. With randomly generated 1% new links the total tweets will increase by 25% as the estimated follower effects dominate the followee effects.
Statistical Modelling with Quantile Functions (2000)

Galton used quantiles more than a hundred years ago in describing data. Tukey and Parzen used them in the 60s and 70s in describing populations. Since then, the authors of many papers, both theoretical and practical, have used various aspects of quantiles in their work. Until now, however, no one put all the ideas together to form what turns out to
Nanowire-Directed Templating Synthesis of Metal–Organic Framework Nanofibers and Their Derived Porous Doped Carbon Nanofibers for Enhanced Electrocatalysis (2014)

A nanowire-directed templating synthesis of metal-organic framework (MOF) nanofibers has been demonstrated, where ultrathin tellurium nanowires (TeNWs) with excellent dispersivity can act as templates for directed growth and assembly of ZIF-8 nanocrystals (one typical MOF), resulting in the formation of uniform ZIF-8 nanofibers. The as-obtained ZIF-8 nanofibers can be conveniently converted into highly porous doped carbon nanofibers by calcination. Compared with bulk porous carbon by direct carbonization of MOF crystals, these doped carbon nanofibers exhibit complex network structure, hierarchical pores, and high surface area. Further doped by phosphorus species, the co-doped carbon nanofibers exhibit excellent electrocatalytic performance for oxygen reduction reaction, even better than the benchmark Pt/C catalyst.
Myeloperoxidase of Human Leukaemic Leucocytes (1968)

Myeloperoxidase was isolated from leucocytes obtained from the blood of patients suffering from chronic granulocytic leukaemia. The enzyme was purified 850 fold and was homogeneous in ultracentrifuge and free boundary electrophoresis. The molecular weight of the enzyme was found to be about 160,000. The enzyme forms a spectrally characteristic complex with hydrogen peroxide with absorption maximum at 458 mμ. The spectrum of the native enzyme has absorption maxima at 430 and 570 mμ. The reduced enzyme is characterized by a spectrum with absorption maxima at 472 and 637 mμ. The investigated myeloperoxidase catalysed oxidation of amino acids by hydrogen peroxide. Products of the oxidation of amino acids were ammonia, carbon dioxide, and an aldehyde corresponding to the oxidized amino acid. The observed reaction of deamination and decarboxylation is activated by chloride ions. In the presence of the chloride ions the optimum of the reaction is shifted toward the higher pH values. The velocity of the reaction was found to be dependent on the concentration of the amino acid studied. K m values for various amino acids increased in the range 3.4 × 10 −4 to 10 −3 M in proportion to rising hydrophobic properties of the substrates. Taurine was found to be a competitive inhibitor in the examined reaction, and K i values were in the range of 2 to 3 × 10 −4 M, for different amino acids.
The problem of gastroesophageal reflux. (1986)

Gastroesophageal reflux is the "postnasal drip" of the 1980s. A large variety of symptoms result from reflux: some are merely nuisances, some are life threatening. This review covers those symptoms and diseases due to acid reflux that are of importance to the otolaryngologist.
Scintillomicroscope for Radioactive Tracer Detection (1968)

An image intensifier-microscope system is described that is capable of viewing the spatial distribution of weak radioactive tracer deposits in biological specimens. The radioactive decay products are located by means of the light they emit from thin scintillators placed over the specimen. Comparisons are made with conventional autoradiographic techniques. An analysis is given of the sensitivity of the system. Results obtained from the application of the technique to 14C detection in Schistosoma mansoni are presented and discussed.
β-Glycerophosphate and Thymolphthalein Monophosphate Compared as Substrates for Determining Alkaline Phosphatase Activity in Serum (1971)

Abstract β-Glycerophosphate and sodium thymolphthalein monophosphate were compared clinically and methodologically as substrates for alkaline phosphatase assay. The relative simplicity of the thymolphthalein procedure, its adaptability to semi-automated and micro methods, and its apparent clinical reliability indicate that it is a better substrate for serum alkaline phosphatase assay than is β-glycerophosphate.
Steered Microaggregation as a Unified Primitive to Anonymize Data Sets and Data Streams (2019)

As data grow in quantity and complexity, data anonymization is becoming increasingly challenging. On one side, a great diversity of masking methods, synthetic data generation methods, and privacy models exists, and this diversity is often perceived as unsettling by practitioners. On the other side, most of the anonymization methodology was designed for static, structured, and small data, whereas the current landscape includes big data and, in particular, data streams. We explore here a unified and conceptually simple anonymization approach, by presenting a primitive called steered microaggregation that can be tailored to enforce various privacy models on static data sets and also on data streams. Steered microaggregation is based on adding artificial attributes that are properly initialized and weighted in order to guide the microaggregation process into meeting certain desired constraints. To demonstrate the potential of this type of microaggregation, we show how it can be used to achieve kanonymity, t-closeness, l-diversity, and E-differential privacy in the context of static data sets; furthermore, we discuss how it can be used to achieve k-anonymity of data streams while controlling tuple reordering. Beyond its flexibility and theoretical appeal, steered microaggregation can drastically reduce information loss, as shown by our experimental evaluation.
A modular torsional actuator using shape memory alloy wires (2015)

In this study, novel modular shape memory alloy wire–based torsional actuators were designed and fabricated. These shape memory alloy–based actuators provide rotational displacements. The mechanical and thermal properties of a single module shape memory alloy torsional actuator were characterized. Next, a modular shape memory alloy torsional actuator was configured by connecting single actuator modules in series. This modular actuator can be used directly as a soft or biologically inspired robot. Finally, the rolling motion and shape transformation of the modular shape memory alloy torsional actuator (soft robot) were demonstrated with a simple open-loop-based control scheme experimentally validating the novel mobility and actuation of the proposed actuator. For a control input, sequentially coordinated square waves of electric current were supplied to the shape memory alloy actuating units.
Coal Mine Detect and Rescue Robot Design and Research (2008)

Coal mine is a dangerous field, varies fatal factors menace people. Especially after coal mine disaster, rescuer doesn't know mine tunnel situation. It is very dangerous to go into mine tunnel without environment detect because second explosion may occur. Coal mine detect and rescue robot is a kind of mobile robot. It can go into explosion environment and detect gas content, temperature, etc. The date can send to control man in safe field. This paper designs a coal mine detect and rescue robot. It has many characters suitable to mine tunnel. It is compose of mechanic, electric, computer, control, communicate, sensor, etc. It can run in explosion environment, climb ruins, check gas, and carry some food and medicine to people pin down in a disaster. This robot can rescue many people in coal mine disaster.
Removal of Image Advertisement from Web Page (2011)

With the phenomenal growth of the web, there is an ever increasing volume of data and information published in numerous web-pages. It is said that web is noisy. A web page typically contains a mixture of many kind of information e.g. main contains, advertisements, navigational panels, copy right blocks etc for a particular application only part of information is useful and the rest are noise. These all seriously harm web mining. Advertisements and Sponsor images are not much important in surfing. As there is a need of technique that keep common navigation structure as it is but removes image advertisement and improve surfing efficiency. In this paper a small application HTML Tag Differentiator is created which removes image advertisement using rule based classifier.
Messung und Verhinderung von Bodensatz‐Bildung (1954)

Abstract Es wurde ein Gerät entwickelt, welches die Messung und Registrierung der Bildung von Bodensatz in Lack‐ und Ölfarben ermöglicht. Auf diese Weise wurde eine Reihe oberflächenaktiver Stoffe auf ihre Eignung zur Verhinderung der Bodensatz‐Bildung geprüft. Die Herstellung nicht absetzender Pigmente gelang.
High Resolution 3D Tomographic SAR with Compressive Sensing (2012)

In 2D SAR imaging,the ambiguity problem is hindering the SAR image interpretation.A new method of compressive sensing(CS) is used to solve the spectral analysis problem in SAR tomography for the first time.The signal reconstruction is demonstrated using simulations and TerraSAR-X spotlight data of Berlin.TomoSAR with CS has huge potential,because not only multiple scatterers inside one resolution cell can be separated,the elevation positions and height of scatters can be accurately measured in the reflectivity slice,but also CS is more robust to noise,has lower computational effort and use less data.
Current Switching in MgO-Based Magnetic Tunneling Junctions (2010)

Spin-transfer induced magnetization switching in a MgO-based magnetic tunneling junction (MTJ) has been measured over a wide time range. It was found that the switching current response is asymmetric going from the high resistance state to the low resistance state and vice versa. This asymmetry must be taken into consideration to optimize the read-write margin for a 1T1R (single transistor, single MTJ) memory device design, especially since the driving current that the transistor can supply is also asymmetric. The MTJ and the transistor characteristics need to be adjusted so that the spin-transfer switching current asymmetry matches the transistor driving current asymmetry at the desired operating speed. A new device configuration is proposed to achieve this optimization.
Performance Evaluation of Node Architectures with Color and Direction Constraints in WDM Networks (2010)

We consider routing and wavelength assignment (RWA) in a WDM network consisting of optical cross-connect (OXC) nodes that have color and direction constraints. These restricted node architectures have a smaller cost than the more flexible (and best performing) ones usually assumed in the RWA problem. This introduces an interesting tradeoff between the network performance achieved, in terms of network blocking and number of manual interventions required, and the cost of the node architecture used. In the process of comparing the node architectures, we propose an adaptation of an RWA algorithm that accounts for the lack of node flexibility, aiming to achieve using the constrained node architectures, performance similar to that obtained with the fully flexible node architectures. Additionally, we consider different transponder assignment policies and determine their effect on performance.
FORECAST OF BRENT OIL PRICE - A DELIBERATION ON USE OF FUTURES CONTRACTS OR/AND OF THE ECONOMETRIC MODELS FORECASTS (2015)

The oil price is an essential exogenous variable in the macroeconomic functionality model of a country, therefore the forecast for this variable is an important assumption in the forecast process. Given that most brands of oil are traded at stock exchange, a fast source of forecasts that has demonstrated its functionality in time are the futures contracts. The futures values for long term positions basically can be interpreted as forecasts of oil prices, which reflect the perception of market participants about future developments in line with the known details about the factors of influence. However, there are many opponents of the use of futures contracts longterm positions as forecasts, arguing that the econometric models provide more plausible forecasts, as they are based on historical developments and reflects the maximal correlation with factors influencing the concerned variable. In this paper it’s presented three options for Brent oil price forecasting. It is also examined the idea of using combined forecasts, thus ensuring achievement of prognosis as accurate and which includes all the information possible.
The Chitranjan Ranawat Award: Long-term Survivorship and Failure Modes of 1000 Cemented Condylar Total Knee Arthroplasties (2006)

We examined factors affecting survivorship, and reasons for reoperation and revision of a cemented modular condylar total knee arthroplasty (TKA). One thousand and eight consecutive primary cemented cruciate-retaining TKAs performed at one institution were studied. At the time of review, 411 patients (562 knees) had died, 43 patients (45 knees) had their knee components revised or removed, and 47 patients (62 knees) were lost to followup. Mean followup of living patients with their TKA components in situ (244 patients, 331 knees) was 15.7 years. Survivorship at 15 years for revision for any reason, revision for mechanical failure, and revision for aseptic loosening were 95.9%, 97.0%, and 98.8% respectively. Survivorship was poorer among patients aged less than 60. Forty-five knees had components removed or revised; approximately one-third were removed for infection, one-third for aseptic loosening or tibial polyethylene wear, and one-third for other causes. Mechanical implant failures accounted for less than one-half of the reoperations and revisions, while infection and periprosthetic fractures accounted for a substantial portion of revisions and reoperations. Because mechanical arthroplasty failures have become less common, other complications related to arthroplasty have become proportionately more frequent.
A CMOS APS arrays with TDI in analog voltage domain (2017)

CMOS APS sensors suffer from the SNR reduction caused by the decrease in integration time, especially under the case of low light condition and high relative velocity between objects and sensors. In this paper, a new APS circuits architecture by which TDI function is implemented in the analog voltage domain is proposed to overcome this problem. Time delay integration operation is a straightforward method comes from good old CCD sensors in which signals are added in charge packages with low noise. In this design TDI is mainly achieved by the switch capacitor accumulators and corresponding timing sequences implemented by digital logic on chip. The main noise source especially come from analog sample hold capacitors and OPA are analyzed. The offsets and FPNs are reduced by auto-zero operation and double difference sampling. A 16x128 3T TDI pixel arrays has been taped out by CSMC 0.5 um technology. And finally from the simulation results, a 10dB/dec SNR increase in terms of TDI level has been achieved under low light condition.