gebhart/patrepeval huggingface dataset:
Does BTLE measure up against WiFi? A comparison of indoor location performance (2014)

Bluetooth low energy(BTLE) is an emerging lowpower wireless communication technology which is expected to be of great potential in the next few years. In this paper, we propose several empirical propagation models for BTLE in different conditions: indoor/outdoor, line-of-sight (LOS) / non-line-of-sight (NLOS). Then we compare the propagation characteristics between BTLE and WiFi. It is demonstrated in our experiments that BTLE propagation model can better relate RSSI to range than WiFi, which indicates that BTLE can be more accurate when used in localization scenarios. Extensive experiments in indoor environments have been conducted to explicitly compare the localization accuracy between BTLE and WiFi with nearly identical external environments and conditions. BTLE is proved to be more accurate than WiFi by around 27 percent. We also discuss various underlying reasons why BTLE outperforms WiFi in localization scenarios. We believe that such an accurate and low-cost technique will enable practical and ubiquitous indoor localization.
Microwave With Assisted Ceramic Materials to Maximize Heat Penetration and Improve Recovery Efficiency of Heavy Oil Reservoirs (2017)

Abstract The objective of this work is to improve microwave heat penetration depth and propagation into the reservoir for maximum recovery. Research has discovered ceramic materials, known as an enabler, with unique properties that when exposed to microwave energy, for short time, heat up reaching 1000°C (temperature can be controlled). In this technique, oil is not directly heated by microwave radiation; rather the ceramic materials absorb electromagnetic energy and covert it to thermal energy; thereby heating up the crude oil, and improving heat penetration depth and propagation into the reservoir. This paper presents several successful experimental works and proposes solutions to overcome the challenges in producing heavy oil reserves, either associated with using microwave only or steam. Several experimental studies have been conducted in the lab to compare heat penetration depth and distribution in sandstones and limestone samples; the tests were divided into two sets, the first used microwave only, and the other combined microwave with the ceramic material. The result, from all studies, showed there is a significant improvement in heat penetration depth in the rock when combining the microwave with ceramics; therefore proving that this technology can be used for in situ heat generation. On the other hand, using microwave only has limitations that can be overcome with this approach and has the potential to unlock huge heavy oil reserves, especially in deep and offshore reservoirs. Based on the laboratory results, a numerical model is developed to characterize the optimal heating dynamics as a function of volume and spatial distribution. Next, a method for lab scale simulation of production efficiency using a heavy oil apparatus (HOA) is discussed. The outcome of these studies will be used as an example to develop a field deployment plan.
Evaluation of Contactless Smartcard Antennas (2015)

This report summarizes the results of our evaluation of antennas of contactless and dual interface smartcards and our ideas for user-switchable NFC antennas. We show how to disassemble smartcards with contactless capabilities in order to obtain the bare chip module and the bare antenna wire. We examine the design of various smartcard antennas and present concepts to render the contactless interface unusable. Finally, we present ideas and practical experiments to make the contactless interface switchable by the end-user.
Phase relations pertaining to the solvent winterization of cottonseed and peanut oils in acetone (1950)

Summary and Conclusions Systematic physical chemical data on the solventwinterization behavior of cottonseed and peanut oils with acetone have been obtained which should serve as a basis for selecting the conditions necessary for the effective solvent winterization of these oils in acetone. Cottonseed and peanut oils are only partially miscible with acetone below certain temperatures which have been determined. In peanut oil this phenomenon may interfere with the winterization process within a certain range of concentrations. For cottonseed oil however the separation into two liquid phases does not occur until some 5°C. below the temperature required for adequate winterization. Complete data for a 3‐hour holding‐time have been obtained for three cottonseed oils ranging in iodine value from 106.1 to 116.4. Tables and graphs have been constructed to show the effect of oil‐solvent ratio, chilling temperature, holding‐time, agitation, and iodine value of the original oil on the percentage of solid removed and on the degree of winterization and iodine value of the winterized oil. Similar data have been obtained for a refined peanut oil insofar as possible without interference from separation into two liquid phases. It seems probable that if acetone were used as the winterization solvent for peanut oil, the separation into two liquid layers and the sensitivity of this phenomenon to moisture might be a source of processing difficulties especially if filtration instead of centrifugation were used to separate the solid from the supernatant.
A Leader Election Protocol for Fault Recovery in Asynchronous Fully-Connected Networks (1998)

We introduce a new algorithm for consistent failure detection in asynchronous\nsystems. Informally, consistent failure detection requires processes in a distributed system to distinguish between two different populations: a fault free\npopulation and a faulty one.\nThe major contribution of this paper is in combining ideas from group \nmembership and leader election, in order to have an election protocol for a \nfault manager whose convergence is delayed until a new consistent view of the connectivity\nof the network is established by all processes. In our algorithm a group of \nprocesses agrees upon the failed population of the system, and then gives to a unique\nleader, called the fault manager, the possibility of executing distributed tasks in\na centralized way.\nThis research and the new perspective that we propose are driven by the\nstudy of an actual system, the Caltech RAIN (Reliable Array of Independent\nNodes), on which our protocol has been implemented in order to perform fault\nrecovery in distributed checkpointing. Other potential applications include fault\ntolerant distributed database services and fault tolerant distributed web servers.
Analysis, Modeling and Compensation of Dynamic Imbalance Error for a Magnetically Suspended Sensitive Gyroscope (2016)

Magnetically suspended sensitive gyroscopes (MSSGs) provide an interesting alternative for achieving precious attitude angular measurement. To effectively reduce the measurement error caused by dynamic imbalance, this paper proposes a novel compensation method based on analysis and modeling of the error for a MSSG. Firstly, the angular velocity measurement principle of the MSSG is described. Then the analytical model of dynamic imbalance error has been established by solving the complex coefficient differential dynamic equations of the rotor. The generation mechanism and changing regularity of the dynamic imbalance error have been revealed. Next, a compensation method is designed to compensate the dynamic imbalance error and improve the measurement accuracy of the MSSG. The common issues caused by dynamic imbalance can be effectively resolved by the proposed method in gyroscopes with a levitating rotor. Comparative simulation results before and after compensation have verified the effectiveness and superiority of the proposed compensation method.
Sex and Death in the Male Pea Aphid,<i>Acyrthosiphon pisum</i>: The Life-History Effects of a Wing Dimorphism (2007)

Insect dispersal dimorphisms, in which both flight-capable and flightless individuals occur in the same species, are thought to reflect a balance between the benefits and costs of dispersal. Fitness costs and benefits associated with wing dimorphism were investigated in the male pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae). In one-on-one mating competitions in small arenas between winged and wingless males, the winged aphids obtained most of the matings with virgin females. In contrast, during competition experiments in larger cages with multiple individuals of each morph, the winged males no longer had a clear mating advantage over wingless males. In the absence of competition, wingless males had marginally higher lifetime reproductive success than winged males, probably because mating winged males tended to die faster than wingless males. In the absence of females, winged males survived longer than wingless males and this difference disappeared under starvation conditions. Mating males of both morphs died significantly faster than males without access to females. There does not appear to be a direct tradeoff of dispersal ability with life history characteristics in pea aphid males, suggesting that the advantages of producing winged males may result from outbreeding.
Biofilm on dental implants: a review of the literature (2009)

Increase in surface roughness and surface free energy facilitates biofilm formation on dental implant and abutment surfaces, although this conclusion is derived from largely descriptive literature. Surface chemistry and the design features of the implant-abutment configuration also play a significant role in biofilm formation.
Mutations in Protocadherin 15 and Cadherin 23 Affect Tip Links and Mechanotransduction in Mammalian Sensory Hair Cells (2011)

Immunocytochemical studies have shown that protocadherin-15 (PCDH15) and cadherin-23 (CDH23) are associated with tip links, structures thought to gate the mechanotransducer channels of hair cells in the sensory epithelia of the inner ear. The present report describes functional and structural analyses of hair cells from Pcdh15(av3J) (av3J), Pcdh15(av6J) (av6J) and Cdh23(v2J) (v2J) mice. The av3J and v2J mice carry point mutations that are predicted to introduce premature stop codons in the transcripts for Pcdh15 and Cdh23, respectively, and av6J mice have an in-frame deletion predicted to remove most of the 9th cadherin ectodomain from PCDH15. Severe disruption of hair-bundle morphology is observed throughout the early-postnatal cochlea in av3J/av3J and v2J/v2J mice. In contrast, only mild-to-moderate bundle disruption is evident in the av6J/av6J mice. Hair cells from av3J/av3J mice are unaffected by aminoglycosides and fail to load with [(3)H]-gentamicin or FM1-43, compounds that permeate the hair cell's mechanotransducer channels. In contrast, hair cells from av6J/av6J mice load with both FM1-43 and [(3)H]-gentamicin, and are aminoglycoside sensitive. Transducer currents can be recorded from hair cells of all three mutants but are reduced in amplitude in all mutants and have abnormal directional sensitivity in the av3J/av3J and v2J/v2J mutants. Scanning electron microscopy of early postnatal cochlear hair cells reveals tip-link like links in av6J/av6J mice, substantially reduced numbers of links in the av3J/av3J mice and virtually none in the v2J/v2J mice. Analysis of mature vestibular hair bundles reveals an absence of tip links in the av3J/av3J and v2J/v2J mice and a reduction in av6J/av6J mice. These results therefore provide genetic evidence consistent with PCDH15 and CDH23 being part of the tip-link complex and necessary for normal mechanotransduction.
Linkage of Chromosomal Markers on 4q With a Putative Gene Determining Maximal Insulin Action in Pima Indians (1993)

Insulin action in vivo varies widely in nondiabetic Pima Indians. Not all of this variance is attributable to individual differences in obesity, physical fitness, sex, or age, and after correcting for these co-variates, measures of insulin action aggregate in families. Insulin action at maximally stimulating insulin concentrations has a trimodal frequency distribution, particularly among obese individuals. This is consistent with the hypothesis that a codominantly inherited autosomal gene, unrelated to obesity, determines MaxM in the population. Preliminary sib-pair linkage analyses indicated the possibility of linkage between MaxM and the GYPA/B locus (encoding the MNSs red cell surface antigens) on chromosome 4q. To confirm and extend these findings, 10 additional loci on 4q were typed in 123 siblings and many of their parents from 46 nuclear families. The results indicate significant (P < 0.001) linkage of the FABP2 and ANX5 loci on 4q with MaxM, and of FABP2 with fasting insulin concentration. No linkage was found between the 4q markers and obesity. Our findings indicate that a gene on 4q, near the FABP2 and ANX5 loci, contributes to in vivo insulin action in Pima Indians.
Web testing using UML environment models (2016)

Software testing is a process of finding bugs by comparing actual and expected result of the software. Depending upon the type of applications i.e. desktop or web based, different types of testing performed. Web based application are set of programs run on web browser and access over a network connection. Different types of testing performed for web based application for check correctness, completeness, browser compatibility, usability, performance, security and quality of web app. This paper discussed different types of techniques of web application testing and web testing using UML environment models.
Functional analysis of a cytoplasmic domain-deleted mutant of the CD4 molecule. (1988)

The CD4 molecule is a receptor found on a subset of T lymphocytes. It has been proposed that, upon binding MHC class II molecules expressed on APC, the CD4 molecule enhances the responsiveness of the T cell by increasing intercellular avidity and/or by transducing an intracellular signal. We have analyzed the effect of removing the cytoplasmic domain of the CD4 molecule on the ability of the CD4 molecule to enhance T cell responsiveness. The cytoplasmic domain-deleted mutant of the CD4 molecule (CD4 delta) was found to be as efficient as the CD4 molecule at enhancing responsiveness to cells bearing the appropriate Ag. If subcellular Ag in the form of purified Ag incorporated into liposomes was used, the CD4 molecule was found to be much more efficient than the CD4 delta molecule at enhancing responsiveness. However, the defect in the ability of the CD4 delta molecule to enhance responsiveness could be compensated for by increasing the level of expression of the CD4 delta molecule.
Novel approaches to end-to-end packet reordering measurement (2005)

By providing the best-effort service, the Internet Protocol (IP) does not maintain the same order of packets sent out by a host. Therefore, due to the route change, parallelism inside a switch, and load-balancing schemes, IP packets can be received in an order different from the original one. Such packet reordering events could cause serious performance degradation in TCP and UDP applications. As a result, a number of measurement methods have recently been proposed to enable any Internet host to detect packet reordering from itself to another host. However, these methods have encountered a number of practical difficulties, such as rate-limiting and filtering imposed on ICMP and TCP SYN packets. Moreover, some of the methods cannot detect packet reordering in all scenarios. In this paper we present three new methods for end-to-end packet reordering measurement. Since these methods are based on the TCP data channel, the probing and response messages will not be affected by any intermediaries on an Internet path. We have validated and tested the methods in 20 most common systems and implemented them in a tool called POINTER. We also present measurement results obtained from 200 websites in the Internet.
Universal audio synthesizer control with normalizing flows (2019)

The ubiquity of sound synthesizers has reshaped music production and even entirely defined new music genres. However, the increasing complexity and number of parameters in modern synthesizers make them harder to master. Hence, the development of methods allowing to easily create and explore with synthesizers is a crucial need. Here, we introduce a novel formulation of audio synthesizer control. We formalize it as finding an organized latent audio space that represents the capabilities of a synthesizer, while constructing an invertible mapping to the space of its parameters. By using this formulation, we show that we can address simultaneously automatic parameter inference, macro-control learning and audio-based preset exploration within a single model. To solve this new formulation, we rely on Variational Auto-Encoders (VAE) and Normalizing Flows (NF) to organize and map the respective auditory and parameter spaces. We introduce the disentangling flows, which allow to perform the invertible mapping between separate latent spaces, while steering the organization of some latent dimensions to match target variation factors by splitting the objective as partial density evaluation. We evaluate our proposal against a large set of baseline models and show its superiority in both parameter inference and audio reconstruction. We also show that the model disentangles the major factors of audio variations as latent dimensions, that can be directly used as macro-parameters. We also show that our model is able to learn semantic controls of a synthesizer by smoothly mapping to its parameters. Finally, we discuss the use of our model in creative applications and its real-time implementation in Ableton Live
Antifouling Polymer Membranes with Subnanometer Size Selectivity (2004)

Membranes that deliver nanoscale size selectivity are desirable for applications ranging from water treatment to molecular separations. Here we describe polymer thin film composite membranes coated with amphiphilic graft copolymers consisting of a poly(vinylidene fluoride) (PVDF) backbone and poly(oxyethylene methacrylate) (POEM) side chains, PVDF-g-POEM. Transmission electron microscopy and thermal analysis reveal that these materials molecularly self-assemble into bicontinuous nanophase domains of semicrystalline PVDF, providing structural integrity, and poly(ethylene oxide) (PEO), providing selective transport channels of defined size. PVDF ultrafiltration membranes coated with PVDF-g-POEM wet instantaneously and reject >99.9% of emulsified oil from a 1000 ppm oleic acid/triethanolamine/water microemulsion feed at 66 psi without fouling. Their molecular sieving capability is demonstrated through separation of like-charged organic dyes varying in molecular dimensions by several angstroms. Thicker films of PVDF-g-POEM also act as a chromatograph, exhibiting time-dependent permeation of vitamins B2 and B12. Nonporous asymmetric membranes prepared by immersion precipitation of PVDF/PVDF-g-POEM blend solutions exhibit separation capability similar to that of the thin film composites. These new nanochannel membranes hold potential utility for both high volume and high end value liquid-based separations.
Effect of soya protein on digestive enzymes, gut hormone and anti-soya antibody plasma levels in the preruminant calf (1985)

International audience
The Design and Synthesis of a Class of Microwave Bandpass Linear Phase Filters (1969)

This paper is concerned with the design procedure and synthesis of a class of microwave bandpass linear phase filters which simultaneously exhibit a maximally flat amplitude and delay response about band center. In the first part of the paper a systematic procedure is developed for the construction of a nonminimum phase transfer function which exhibits a maximally flat delay and maximally flat amplitude characteristic. In the second part, a synthesis procedure is presented for the realization of the general nth-ordered transfer function by a generalized interdigital network. To simplify the design and construction of this filter, typical characteristics for filters of degree n = 3,4,5,6,7 are graphically presented together with a tabular representation of the polynomials which are required to design the filter. Finally, the results of an experimental filter of degree 3 are incorporated to illustrate that this class of nonminimum phase filters may readily be constructed in practice.
Directory assistance automation in Bell Canada: trial results (2002)

Speech recognition was used to automate directory assistance in a 6-month trial with Bell Canada's public customers. The bilingual application gave the caller a choice at the beginning of the dialog to continue in English or French. Over 89% of calls were either partially or fully automated. Customer and operator reactions to the system were positive. Bell-Northern Research's flexible vocabulary recognizer, using a vocabulary of 1,700 city names and synonyms, performed well under real world conditions. Economically significant operator work time savings were demonstrated.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Shared Scratch-Pad Memory Space Management (2006)

Scratch-pad memories (SPMs) are important storage components in many embedded applications and used as an alternative or a complimentary storage to on-chip cache memories. One of the most critical issues in the context of SPMs is to select the data elements to place in them since the gap between SPM access latencies and off-chip memory access latencies keep increasing dramatically. Previous research considered this problem and attacked it using both static and dynamic schemes. Most of the prior efforts on data SPMs have mainly focused on single application scenarios, i.e., the SPM space available is assumed to be managed by a single application at any given time. While this assumption makes sense in certain domains, there also exist many cases where multiple applications need to share the same SPM space. This paper focuses on such a multi-application scenario and proposes a nonuniform SPM space partitioning and management across concurrently-executing applications. In our approach, the amount of data to be allocated to each application is decided based on the data reuse each application exhibits
The α2δ subunits of voltage-gated calcium channels (2012)

Voltage-gated calcium channels consist of the main pore-forming α1 subunit, together, except in the case of the T-type channels, with β and α2δ and sometimes γ subunits, which are collectively termed auxiliary or accessory subunits. This review will concentrate on the properties and role of the α2δ subunits of these channels. These proteins are largely extracellular, membrane-associated proteins which influence the trafficking, localization, and biophysical properties of the channels. This article is part of a Special Issue entitled: Calcium channels.
Dose theory and pressure compensation on Axcelis GSD high current implanter (2002)

Neutralization of ions by charge changing interactions with gas in the beam line or end station of ion implant systems may lead to wrong dose and bad uniformity on the processed wafers. In this paper the dosimetry and the pressure compensation on Axcelis GSD high current implanter are discussed based on detailed analysis of dose_dat files. Theoretical models for pressure compensation are reviewed together with a new model in order to describe the pressure compensation as a function of dopant and energy. A alternative method of determination of pressure compensation factor pcomp is given, and problems in practice and results from residual gas analysis are discussed.