gebhart/patrepeval huggingface dataset:
Antenna Characterization for UAV Based GPS Jammer Localization (2015)

The increased integration of GPS in the airspace to improve efficiency and enhance safety comes with an increased risk of harm from a GPS jamming device. In an effort to protect the airspace of the future from the effects of GPS jammers by rapidly mitigating their effects, we are developing an unmanned aerial vehicle (UAV) based solution for the localization of a jammer that can operate at an airport. The development of this UAV solution is centered on two main areas: the localization of the jammer and navigation in a denied environment. In this paper, we examine developments in the first area, the localization of the jammer.

This paper examines the two primary components of our localization system: radio frequency (RF) detection and a navigation control scheme for localization. The RF detection component uses a directional antenna and the UAV’s ability to rotate to determine a bearing to the jammer. The navigation control scheme selects a trajectory leading to bearing measurements that allow rapid localization of the jammer.

The ability to make reliable bearing measurements is paramount to quickly localizing the jammer. The research in this paper analyzes our directional antenna and three bearing calculation methods: max, cross-correlation, and a modification of max leveraging the shape of the antenna’s main lobe (referred to as max3 in this paper). Flight test data is used to analyze the performance of these methods at various distances from the jammer.

Localization is achieved by determining and moving to the best locations to make signal observations and merging these observations to get an accurate estimate of jammer location. In order to pick measurement locations that minimize localization time, we’ve formulated the problem of picking these locations as a partially observable Markov decision process (POMDP). This closed-loop controller determines the next measurement location given the information gathered from prior measurements. Flight tests with this control scheme were performed and are presented in this paper. The effect of bearing measurement quality on the decision-making is also shown.
Hemicraniectomy: A New Model for Human Electrophysiology with High Spatio-temporal Resolution (2009)

Abstract Human electrophysiological research is generally restricted to scalp EEG, magneto-encephalography, and intracranial electrophysiology. Here we examine a unique patient cohort that has undergone decompressive hemicraniectomy, a surgical procedure wherein a portion of the calvaria is removed for several months during which time the scalp overlies the brain without intervening bone. We quantify the differences in signals between electrodes over areas with no underlying skull and scalp EEG electrodes over the intact skull in the same subjects. Signals over the hemicraniectomy have enhanced amplitude and greater task-related power at higher frequencies (60–115 Hz) compared with signals over skull. We also provide evidence of a metric for trial-by-trial EMG/EEG coupling that is effective over the hemicraniectomy but not intact skull at frequencies &amp;gt;60 Hz. Taken together, these results provide evidence that the hemicraniectomy model provides a means for studying neural dynamics in humans with enhanced spatial and temporal resolution.
High electron mobility enhancement on (110) surface due to uniaxial strain and its impact on short channel device performance of SOl FinFETs (2008)

We have successfully fabricated uniaxially strained SOI FinFETs with high electron mobility and low parasitic resistance. The electron mobility on (110) sidewall surfaces was found to surpass the (100) universal mobility by the subband engineering through uniaxial tensile strain along <110>. Thanks to this high electron mobility enhancement and the relatively low parasitic resistance, high I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">on</sub> enhancement of +38% and the I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">on</sub> value of 900 ¿A/¿m in 50 nm gate length n-FinFETs with (110) surfaces were realized.
IS-IS Flooding Scope LSPs (2013)

Intermediate System To Intermediate System (IS-IS) provides efficient
and reliable flooding of information to its peers. However the current
flooding scopes are limited to either area wide scope or domain wide
scope. There are existing use cases where support of other flooding
scopes are desirable. This document defines new Protocol Data Units
(PDUs) which provide support for new flooding scopes as well as
additional space for advertising information targeted for the
currently supported flooding scopes. The protocol extensions defined
in this document are not backwards compatible with existing
implementations and so must be deployed with care.
Disruption-free routing convergence : computing minimal link-state update sequences (2014)

The use of real time media or mission critical applications over IP networks is making strong pressure on service providers to operate disruption free networks. However, after any topological change, link-state Interior Gateway Protocols (IGPs), such as IS-IS or OSPF, enter a convergence phase during which transient forwarding loops may occur. Such loops increase the network latency and cause packet losses for several seconds. In this thesis, we propose and evaluate innovative solutions to prevent these perturbations in case a planned modification on a link or a router. Our approach only relies on core functionalities of link-state routing protocols, thus being incrementally deployable in any network. Intuitively, it consists in implicitly controlling the routers update order through successive IGP weight reconfigurations on a subset of links. For example, progressively increasing the weight of a link forces farthest routers to update their routes first, before closest ones. Hence, finely tuning such changes may allow to spread the update of routers potentially implied in a loop across multiple steps. This operation can be repeated until the component to be removed is no longer used to forward traffic in the network, thus allowing its removal with no impact on the routing decisions.
Robustness to mechanical perturbations of center-launching technique for transparent board-to-board and data server interconnects (2013)

Center-launching technique appears as a promising method to allow single-mode propagation in multi-mode fibers, guaranteeing full transparency to the transmitted optical signal also for applications in board-to-board and data server interconnects. In this paper we show that this technique is robust to mechanical perturbations up to about 1 kHz, demonstrating that the vibrations do not affect the transmission performances. Different experimental configurations are tested in order to exclude multimode propagation and to confirm the only fundamental mode propagation. Finally, a theoretical discussion comments the experimental results.
Coronary blood flow, oxygen delivery rate and cardiac performance (1971)

1. Studies have been made on the isolated blood-perfused heart of dogs in which isometric tension development at various settings of resting tension (RT) was measured at various levels of O(2) delivery rates controlled by altering (a) coronary blood flow (CBF), (b) O(2) capacity or (c) O(2) saturation of the perfusate. Measurements were also made of O(2) consumption and vascular perfusion resistance.2. The capacity of the left ventricle to develop tension at any given setting of resting tension was found to be directly correlated with changes in O(2) delivery rate using any of the above three methods of altering the latter.3. The slopes of the curves relating resting tension to developed tension are positively correlated with total O(2) delivery to the heart.4. The O(2)-dependent metabolic effect upon tension production was found to be slow in development, in contrast to the Frank-Starling effect, which reached full development in the first heart beat after a change in resting length and tension.5. The O(2) consumption of the isometrically contracting heart is strongly correlated with the O(2) delivery rate at all particular values of resting tension and related developed tension.6. The metabolic state of the myocardium as determined by the rate of O(2) delivery within physiological ranges is (a) a direct major determinant of the tension-producing capacity of the heart muscle and (b) determines the magnitude of adaptation via the Frank-Starling mechanism.
The dependence of the characteristic temperature of highly stacked InAs quantum dot laser diodes fabricated using a strain-compensation technique on stacking layer number (2012)

We fabricated laser diodes containing highly stacked InAs quantum dots using the strain compensation technique. We analyzed the characteristic temperature and found that it increased with increasing number of stacking layers.
Low-level microsatellite instability in most colorectal carcinomas. (2002)

Twelve to 16% of colorectal cancers (CRCs) display a high degree of microsatellite instability (MSI-H), whereas most are believed to be microsatellite stable (MSS). The existence of a low degree of instability (MSI-L) group has also been proposed. By using the Bethesda panel of microsatellite markers, the microsatellite instability (MSI) status of CRCs can be determined. This set is recommended to distinguish between MSI-H and MSI-L/MSS. No definition for MSI-L has emerged. Most reports on MSI-L rely on the Bethesda panel, using 5-15markers. Tumors with more than 30% MSI are designated as MSI-H, but the lower limit for MSI-L is ambiguous. We hypothesized that if many markers are studied, almost all CRCs would show some MSI. It would be necessary to establish a cutoff level for MSI-L by showing that, above this cutoff level, tumors display molecular and/or clinical features different from those under the cutoff level. To perform this task, we analyzed 90 BAT26 stable CRC samples with 377 markers. MSI at 1-11 loci was observed in 71 (79%) of the 90 cases. K-RAS mutation, loss of heterozygosity, and MLH1 and MGMT hypermethylation analyses were performed, as well as clinical features being scrutinized, to examine possible differences between MSI-L and MSS tumors using all of the possible cutoff levels for MSI-L. Convincing differences between putative MSI-L and MSS groups were not observed. Our results show that the sensitivity of a typically used marker number to detect MSI-L is very low, and they suggest that MSS and MSI-L tumors have a common molecular background.
Structures and fabrication techniques for solid state electrochemical devices (2011)

Porous substrates and associated structures for solid-state electrochemical devices, such as solid-oxide fuel cells (SOFCs), are low-cost, mechanically strong and highly electronically conductive. Some preferred structures have a thin layer of an electrocatalytically active material (e.g., Ni--YSZ) coating a porous high-strength alloy support (e.g., SS-430) to form a porous SOFC fuel electrode. Electrode/electrolyte structures can be formed by co-firing or constrained sintering processes.
Catalytic Oxidation Reactions in Carbon Dioxide-Expanded Liquids Using the Green Oxidants Oxygen and Hydrogen Peroxide (2009)

This research focuses on sustainable catalytic oxidation chemistry for the commercial production of wide ranges of products. O2 in the air and minimum cost H2O2 are the oxidants of choice because of their green footprints. Herein, the gas expanded liquid principle is applied to various kinds of reaction components: (a) media expanded liquids (MXLs) including the well known carbon dioxide expanded liquids (CXLs); (b) substrate expanded liquids (SXLs), as in our propylene to propylene oxide process, and (c) reagent expanded liquids (RXLs), as exemplified by certain ozone oxidations.
Design strategies for the construction of independently folded polypeptide motifs (1998)

In this paper we present a redesign strategy for the development of uniquely folded polypeptide motifs of less than 40 residues. These mini proteins are based on natural target domains, including the zinc finger domains (BBA motif)* and the disulfide-rich snake and scorpion toxins (BBB motif). These motifs are designed to act as the molecular framework for the construction of novel functional polypeptides. We will explore the structural determinants of the folded BBA motif, inspired by the zinc finger peptides, in relation to the redesign process.
Recent developments in generator circuit breakers (2003)

The self-blast technique of interruption for SF/sub 6/ High-Voltage circuit breakers has been developed and improved during the last fifteen years. This technique has proved to be very effective and has been widely applied to High-Voltage circuit breakers up to 800 kV. The paper shows the application of this technique to the development of SF/sub 6/ Generator circuit breakers with low energy spring-operated mechanisms. A particular characteristic of Generator circuit breakers is their necessary capability to interrupt short-circuit currents with delayed current zeros. As shown in this paper, this performance, required by ANSI/IEEE Standard C37.013, can be demonstrated by breaking tests and calculations. The IEEE Switchgear Committee is currently revising the standard for Generator circuit breakers in order to extend the scope to applications of less than 100 MVA rated power. The paper presents calculations that have been made to calculate TRVs (Transient Recovery Voltages) for system fed faults in the case of small Generator circuit breakers connected to the step-up transformer by cables.
An Evaluation of Various GPS Satellite Ephemerides (2000)

High precision orbital information is extremely important 
for the determination of GPS-derived position. The 
Broadcast ephemeris generated by the GPS Operational 
Control Segment (OCS), is freely available to users who 
decode the GPS Navigation Message. Although the 
Broadcast ephemeris is sufficiently accurate for most 
navigation users, high-precision applications benefit from 
improved orbital information. There are a number of 
ephemeris sources now routinely available via the 
Internet for post-processing, near-real-time, and real-time 
applications. Ephemerides are generated by: The 
International GPS Service (IGS); Jet Propulsion 
Laboratory (JPL); Centre for Orbit Determination in 
Europe (CODE); U.S. National Geodetic Survey (NGS); 
the U.S. National Imagery and Mapping Agency 
(NIMA); and other organisations. The performance of the 
ephemeris services can be gauged by the distribution of 
tracking stations used in the orbit generation, underlying 
computation procedures, availability and latency. 
An evaluation of six ephemeris products was undertaken 
over two separate weeks during 1999 and 2000. Satellite 
locations at each 15 minute epoch in the orbits were 
compared to the IGS Final ephemeris. It is believed that 
the IGS Final ephemeris is the most precise and therefore 
was considered as truth in the comparison. Based on the 
evaluation, the IGS Predicted and JPL Ultra-Rapid 
ephemerides were within an accuracy of 3m and 1.5m 
respectively, of truth. However, both ephemeris sources 
showed problematic modelling for some satellites. The 
Broadcast ephemeris, on the other hand, gave consistent 
results across all satellites. All precise orbits gave 
comparable accuracy, with the official military ephemeris 
generated by NIMA, the worst. Results suggest that the 
IGS Predicted, or JPL Ultra-Rapid ephemeris have the 
potential to replace the Broadcast ephemeris for real-time 
applications. However the Broadcast ephemeris is 
sufficient for all but the most demanding applications. 
The Precise ephemerides have standard deviations at the 
10cm level and are suitable for high-precision post-
processing applications.
Identifying Risk Factors for PTSD in Women Seeking Medical Help after Rape (2014)

Development of PTSD is common in the aftermath of sexual assaults. Increased risk of developing PTSD is caused by a combination of victim vulnerability and the extent of the dramatic nature of the current assault. By identifying those women at greatest risk of developing PTSD appropriate therapeutic resources can be directed.
ATC-Wake: Integrated Wake Vortex Safety and Capacity System (2007)

With the steady increase in air traffic, civil aviation
authorities are under continuous pressure to increase
aircraft handling capacity. One potential approach is to
reduce the separation distance between aircraft at takeoff
and landing witliout compromising safety. ATC-Wake
aims to develop and build an integrated system for ATC
(Air Traffic Control) that would allow variable aircraft
separation distances, as opposed to the fixed distances
presently applied at airports. The ATC-Wake project has
developed and built an integrated ATC Wake Vortex Safety
and Capacity platform. A variety of subsystems is integrated
and used within a test bed role:
- To evaluate the interoperability of ATC-Wake with
existing ATC systems currently used at various European
airports;
- To assess the safety and capacity improvements that
can be obtained by local installation of the ATC-Wake
system at various European airports;
- To evaluate operational usability and acceptability of the
ATC-Wake system;

The ATC-Wake system is used in the planning phase
where weather and wake vortex forecast information are
used together with aircraft separation rules to establish
the arrival and/or departure sequence. For approaches, the
aim is to manage separation distances down to 2.5 nautical
miles, in favorable weather conditions, for all aircraft types
regardless of size. For departures, the aim is to reduce the
time separation between departing aircraft to 90 seconds
(in favorable wind conditions). Weather nowcasting and
wake vortex prediction and detection information is used
in the tactical phase to monitor and control safe separation.
Wind forecast data is used to determine time frames
suitable for reduced separation. Criteria on crosswind and
associated safe separation minima are derived from safety
assessment results obtained with the NLR WAke Vortex
Induced Risk assessment (WAVIR) methodology. As
main conclusion the ATC-Wake technical and operational
feasibility analyses and the safety and capacity studies have
built sufficient confidence in the operational concept and
system design for the application of reduced separations to
represent a sound evolution from existing ATC procedures
and working practices, to deliver significant benefits for
runway throughput and average delay per flight without
major rework to the current ATC systems,while maintaining
safety. The next step will be to complete the validation
through production of a Safety Case, Human Factors Case,
Business Case, and a Technology Case towards installation
of the ATC-Wake at one or more European airports. The
best would be to continue with airport shadow mode field
trials, i.e., with direct involvement of airports and air traffic
control centers.
Smooth Loops from Unconstrained Video (2015)

Abstract Converting unconstrained video sequences into videos that loop seamlessly is an extremely challenging problem. In this work, we take the first steps towards automating this process by focusing on an important subclass of videos containing a single dominant foreground object. Our technique makes two novel contributions over previous work: first, we propose a correspondence‐based similarity metric to automatically identify a good transition point in the video where the appearance and dynamics of the foreground are most consistent. Second, we develop a technique that aligns both the foreground and background about this transition point using a combination of global camera path planning and patch‐based video morphing. We demonstrate that this allows us to create natural, compelling, loopy videos from a wide range of videos collected from the internet.
Stabilized Zirconia-Based Potentiometric Sensor for Nitrogen Oxides (1994)

Abstract An electrochemical device fabricated by combining an MgO-stabilized zirconia (MSZ) tube and a coating layer of Ba(NO3)2 (auxiliary phase) was found to exhibit fairly good Nernstian response to dilute NO2 in air at elevated temperature (450 °C). The response to NO, which was far less satisfactory with the above device, could be much improved by the use of a binary system of Ba(NO3)2-CaCO3 for the coating layer.
ChemInform Abstract: Multiple Bonds Between Transition Metals and Main‐Group Elements. Part 170. Methyltrioxorhenium/Pyrazole — A Highly Efficient Catalyst for the Epoxidation of Olefins. (1998)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Abstract 2115: Interrogation of mechanisms that underlie augmented steroidogenesis in castration-resistant prostate cancer (2014)

Abstract The conversion of adrenal androgens, such as dehydroepiandrosterone (DHEA), to dihydrotestosterone (DHT) drives castration resistant prostate cancer (CRPC) progression. No mutations or variations in those steroidogenic enzymes have been identified as responsible for the phenotype of increased intratumoral DHT synthesis in CRPC. By analyzing CRPC cell line models and clinical samples from patients with CRPC, we found that a gain-of-stability mutation in 3β-hydroxysteroid dehydrogenase type 1 (3βHSD1, encoded by HSD3B1 gene) confers an increase in metabolic flux from DHEA to DHT in CRPC. The prolonged protein half-life of mutant 3βHSD1 results from resisting an association with the ubiquitin E3-ligase autocrine mobility factor receptor (AMFR). Genetic selection for mutant 3βHSD1 is evident from somatic mutation in human CRPC tumors, by loss of heterozygosity (LOH) of the wild type copy in patients with heterozygous inheritance, and from acquisition of same somatic mutation in a mouse xenograft tumor model treated with abiraterone. Furthermore, we found the expression of AMFR is suppressed in a CRPC xenograft model expressing wild type 3βHSD1, suggesting a compensatory mechanism that augments steroidogenesis in CRPC progression. Our discovery of this 3βHSD1 gain-of-function mutation is the first example of a mutation identified in a component of steroidogenic machinery in CRPC, which strongly validates a new target for individualized cancer therapy in CPRC. Citation Format: Kai-Hsiung Chang, Nima Sharifi. Interrogation of mechanisms that underlie augmented steroidogenesis in castration-resistant prostate cancer. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2115. doi:10.1158/1538-7445.AM2014-2115
The Design of Organic User Interfaces: Shape, Sketching and Hypercontext (2013)

With the emergence of flexible display technologies, it will be necessary for interface designers to move beyond flat interfaces and to contextualize interaction in an object's physical shape. Grounded in early explorations of organic user interfaces (OUIs), this paper examines the evolving relationship between industrial and interaction designs and examines how not only what we design is changing, but how we design too. First, we discuss how (and why) to better support the design of OUIs: how supporting sketching, a fundamental activity of many design fields, is increasingly critical and why a ‘hypercontextualized’ approach to their design can reduce the drawbacks met when everyday objects become interactive. Finally, underlying both these points is the maturation of technology to that of a computational material; when interactive hardware is seamlessly melded into an object's shape, the ‘computer’ disappears and is better seen as a basic design material that, incidentally, happens to have interactive behavior.