gebhart/patrepeval huggingface dataset:
Micromagnetics of signal propagation in magnetic cellular logic data channels (2008)

The physics of magnetic signal propagation in one-dimensional antiferromagnetically coupled nanomagnetic arrays is studied using micromagnetic modeling. The results are used to develop the design guidelines such as the criteria for the interelement spacing for efficient operation and the error suppression due to the magnetization misalignment in individual elements in the array. The propagation speed is found to decay significantly as the damping is increased. The external “clocking” field is applied to improve the data channel characteristics. However, premature relaxation of the end elements inhibits the proper operation of longer channels. A proposed solution is a zone-by-zone propagation scheme, which is compatible with the pipelining approach. Simulation results demonstrate a possibility of successful signal propagation at 2 GHz clocking field frequency with no limitation on the length of the channel.
TiO2 Nanocrystal‐Framed Li2TiSiO5 Platelets for Low‐Voltage Lithium Battery Anode (2020)

Abstract Titanium‐based anode materials are attracting considerable attention for use in high‐performance lithium‐ion batteries, but the compromised energy density caused by high voltage plateaus and unsatisfactory capacities severely retards their practical applications. Herein, a molten‐salt synthesis of Li 2 TiSiO 5 crystalline platelets and a subsequent selective facet modification by in situ growth of TiO 2 nanocrystal frames are facilely achieved. The discharge voltage plateau at around 0.5 V renders the Li 2 TiSiO 5 anode safe compared with graphite and confers a high energy density compared with zero‐strain Li 4 Ti 5 O 12 anode. With the optimized size, structure, and content of modified TiO 2 nanocrystals associated with the exposed (001) plane of Li 2 TiSiO 5 , the Li 2 TiSiO 5 ‐based anodes can deliver a capacity of above 300 mAh g −1 , enhanced rate performance, and a capacity retention of 66% after 10 000 cycles. In situ X‐ray diffraction and ex situ transmission electron microscopy have demonstrated the structural stability of the anodes upon charge/discharge. Further theoretical calculation reveals 3D migration paths of Li + ions in Li 2 TiSiO 5 . The selective modification of in situ grown TiO 2 nanocrystals on certain facets of crystallites opens a new door for the development of electrode materials possessing superior electrochemical properties.
Purification and characterization of Pla a 1, a major allergen from Platanus acerifolia pollen (2002)

The most relevant allergens from the P. acerifolia pollen have been determined. A major allergen, specific of this pollen, and named Pla a 1, has been purified and characterized.
Stability of Plasma Human Immunodeficiency Virus Load in VACUTAINER PPT Plasma Preparation Tubes during Overnight Shipment (2000)

VACUTAINER PPT plasma preparation tubes were evaluated to determine the effects of various handling and shipping conditions on plasma human immunodeficiency virus (HIV) load determinations. Plasmas obtained from PPT tubes stored and shipped under nine different conditions were compared to conventional EDTA tube plasmas stored at -70 degrees C within 2 h after phlebotomy. Compared to viral loads in frozen EDTA plasma, those in PPT tube plasma that was frozen immediately and either separated or shipped in situ were not significantly different. Viral loads in PPT tube plasma after storage for 6 h at either room temperature or 4 degrees C, followed by shipment at ambient temperature or on wet or dry ice, were not significantly different from baseline viral loads in EDTA or PPT plasma. The results of this study indicate that the HIV load in PPT tube plasma is equivalent to that in standard EDTA plasma. Plasma viral load is not affected by storage or shipment temperature when plasma is collected in PPT tubes. Furthermore, plasmas can be shipped in spun PPT tubes, and the tubes provide a safer and more convenient method for sample collection and transport than regular EDTA tubes.
Ultrasonic Attenuation in Dirty Dielectric Crystals (1968)

The attenuation of a sound wave by anharmonic interaction with the thermal phonons in a dielectric crystal has been calculated using the Boltzmann-equation approach of Woodruff and Ehrenreich. Contributions to the thermal-phonon collision rate due to elastic scattering of phonons by crystal defects (relaxation time ${\ensuremath{\tau}}_{e}$) and due to intrinsic inelastic anharmonic processes (relaxation time ${\ensuremath{\tau}}_{i}$) are considered separately. In the case of longitudinal waves the attenuation remains finite as ${\ensuremath{\tau}}_{e}\ensuremath{\rightarrow}0$, whereas for transverse waves propagating in high-symmetry directions the attenuation tends to zero in this limit. For $\ensuremath{\Omega}{\ensuremath{\tau}}_{i}\ensuremath{\ll}1$, an estimate is made of the ratio of the longitudinal-wave attenuation in a dirty crystal ($\ensuremath{\Omega}{\ensuremath{\tau}}_{e}\ensuremath{\rightarrow}\ensuremath{\infty}$) to that in a clean crystal ($\ensuremath{\Omega}{\ensuremath{\tau}}_{e}\ensuremath{\rightarrow}0$). This ratio is found to be a sensitive function of the Gr\"uneisen constants of the crystal and of the temperature.
Proportional throughput differentiationwith cognitive load-control on WSN channels (2015)

Wireless sensor networks are nowadays used in various applications to facilitate monitoring and actuation tasks, e.g., for smart grids and industrial automation. Some of these applications require guarantees or at least assurances on reliability. Such applications expect predictable throughput and delay, which are hard to maintain in environments with changing radio conditions. QoS-aware MAC protocols capable of handling such environments are well explored. They require however protocol changes and are therefore difficult to deploy. This paper presents an application layer forwarding service that offers proportional differentiation while limiting network load to preserve high utilization and predictability. Demands for capacity are expressed as fractions of the overall channel throughput. We show that this service can be implemented with a cognitive load controller (CLC) based on fuzzy logic and quality assessed with utility functions for application layer packet loss and throughput. We evaluate the CLC for 802.15.4 with CSMA/CA through NS-3 simulations showing that it offers the intended service while adjusting load for high overall throughput and low delay.
Advantage of high-density plasma nitridation for improving thermal stability of ultrathin GeO<inf>2</inf> on Ge(100) (2011)

We have investigated the thermal stability of ultrathin germanium oxynitride (GeON) gate dielectrics fabricated by plasma nitridation of ultrathin thermal oxide (GeO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ). Thermal treatment up to 520°C effectively improved the electrical properties of the ultrathin GeON dielectrics, such as reduced bulk and interface defects.
Randomly Functionalized Polyethylenes: In Quest of Avoiding Catalyst Deactivation (2019)

Well-defined randomly functionalized polyolefins produced by catalysis form an interesting class of polymers with great potential for various applications. One of the major challenges for the production of these materials forms the incompatibility of the commonly used electrophilic group 4 metal based catalysts and the desired nucleophilic, especially protic functionalities like hydroxyl and carboxylic acid groups. Although pacification of the protic functionality remains necessary, it was found that lowering the oxidation state of a constrained geometry type of catalyst from Ti(IV) to Ti(III) turned the catalyst unexpectedly tolerant to a wide variety of aluminum alkyl pacified, hydroxyl-functionalized olefin comonomers. The catalyst’s tendency to undergo chain transfer to aluminum, which was found to be intensified by the presence of aluminum alkyl pacified, hydroxyl-functionalized comonomers, can be efficiently suppressed by the addition of a sterically hindered phenol such as 2,6-bis(1,1-dimethylethyl)-4-methylphenol (BHT). Surprisingly, the addition of BHT also increases the catalyst’s affinity to incorporate these functionalized comonomers.
Privacy Preserving Shortest Path Queries on Directed Graph (2018)

Trust relation in this work refers to permission that is given to a user at source-host to access another user at target-host through an authentication key with a unique fingerprint. We form a directed graph out of these trust relations, such that user-host pairs are considered as nodes and fingerprints as arrows. We present a novel protocol to query the shortest path from node A to node B, in a privacy preserving manner. We would like to use a cloud to perform such queries, but we do not allow the cloud to learn any information about the graph, nor the query. Also the database owner is prevented from learning any information about the query, except that it happened.
A novel voice conversion system based on codebook mapping with phoneme-tied weighting (2004)

This paper presents a novel voice conversion system based on codebook mapping. A new phoneme-tied weighting strategy is proposed to reduce the smoothing effects in weighted sum of code books, while a new prosodic conversion method by decision tree is proposed to cope with the complex prosody of Chinese. STRAIGHT algorithm is used to decompose spectrum and excitation for separate modification. Listening tests prove the proposed methods can effectively convert speaker’s individuality while maintaining high speech quality with a small amount of training data.
On the benefits of phase shift keying to optical telecommunication systems (2011)

Les avantages de la modulation de phase vis-à-vis la modulation d’intensité pour les réseaux optiques sont claires et accepté par la communauté scientifique des télécommunications optiques. Surtout, la modulation de phase montre une meilleure sensibilité au bruit, ainsi qu’une plus grande tolérance aux effets non-linéaires que la modulation d’intensité. Nous présentons dans cette thése un étude qui vise à développer les avantages de la modulation de phase. Nous attaquons d’abord la complexité du récepteur en détection directe, en proposant une nouvelle configuration dont la complexité est comparable à celle du récepteur pour la modulation d’intensité traditionnel, mais avec des meilleures performances. Cette solution pourrait convenir pour les réseaux métropolitains (et même d’accès) à haut débit binaire. Nous passons ensuite à l’examen de la possibilité d’utiliser des amplificateur à semi-conducteur (SOA) au lieu des amplificateurs à fibre dopée à l’erbium pour fournir amplification optique aux signaux modulés en phase. Les non-linéarité des SOA sont étudiées, et un compensateur simple et très efficace est proposé. Les avantages des amplificateurs à semi-conducteur par rapport à ceux à fibre sont bien connus. Surtout, la méthode que nous proposons permettrait l’integrabilité des SOA avec d’autres composants de réseau (par exemple, le récepteur nommé cidessus), menant à des solutions technologiques de petite taille et efficaces d’un point de vue énergétique. Il y a deux types de systèmes pour signaux modulés en phase: basé sur la détection directe, ou sur les récepteurs cohérents. Dans le dernière partie de ce travail, nous nous concentrons sur cette dernière catégorie, et nous comparons deux solutions possibles pour la mise à niveau des réseaux terrestres actuel. Nous comparons deux configurations dont les performances sont très comparables en termes de sensibilité au bruit, mais nous montrons comment la meilleure tolérance aux effets non linéaires (en particuliers dans les systèmes à débit mixte) fait que une solution soit bien plus efficace que l’autre.
Optimization of Complex Dataflows with User-Defined Functions (2017)

In many fields, recent years have brought a sharp rise in the size of the data to be analyzed and the complexity of the analysis to be performed. Such analyses are often described as dataflows specified in declarative dataflow languages. A key technique to achieve scalability for such analyses is the optimization of the declarative programs; however, many real-life dataflows are dominated by user-defined functions (UDFs) to perform, for instance, text analysis, graph traversal, classification, or clustering. This calls for specific optimization techniques as the semantics of such UDFs are unknown to the optimizer. In this article, we survey techniques for optimizing dataflows with UDFs. We consider methods developed over decades of research in relational database systems as well as more recent approaches spurred by the popularity of Map/Reduce-style data processing frameworks. We present techniques for syntactical dataflow modification, approaches for inferring semantics and rewrite options for UDFs, and methods for dataflow transformations both on the logical and the physical levels. Furthermore, we give a comprehensive overview on declarative dataflow languages for Big Data processing systems from the perspective of their build-in optimization techniques. Finally, we highlight open research challenges with the intention to foster more research into optimizing dataflows that contain UDFs.
Tailoring Light Flow in Microfluidics (2015)

This paper proposes an approach to tailor the light flow by using the liquid diffusion-generated gradient. A microfluidic network is designed to generate the required linear and parabolic profiles. Maxwell’s fisheye lens and optical bend are realized on a single microfluidic chip.
Relationship between Mn Oxidation State Changes and Oxygen Reduction Activity in (La,Ca)MnO3 as Probed by In Situ XAS and XES (2021)

&lt;p&gt;In situ X-ray absorption and emission spectroscopies (XAS and XES) are used to provide details regarding the role of the accessibility and extent of redox activity of the Mn ions in determining the oxygen reduction activity of LaMnO3 and CaMnO3, with X-ray absorption near-edge structure (XANES) providing the average oxidation state, extended X-ray absorption fine structure (EXAFS) providing the local coordination environment, and XES providing the population ratios of the Mn2+, Mn3+, and Mn4+ sites as a function of the applied potential. For LaMnO3, XANES and XES show that Mn3+ is formed, but Mn4+ ions are retained, which leads to the 4e- reduction between 0.85 and 0.6 V. At more negative potentials, down to 0.2 V, EXAFS confirms an increase in oxygen vacancies as evidenced by changes in the Mn-O coordination distance and number, while XES shows that the Mn3+ to Mn4+ ratio increases. For CaMnO3, XANES and XES show the formation of both Mn3+ and Mn2+ as the potential is made more negative, with little retention of Mn4+ at 0.2 V. The EXAFS for CaMnO3 also indicates the formation of oxygen vacancies, but in contrast to LaMnO3, this is accompanied by loss of the perovskite structure leading to structural collapse. The results presented have implications in terms of understanding of both the pseudocapacitive response of Mn oxide electrocatalysts and the processes behind degradation of the activity of the materials.&lt;/p&gt;
Structural instability of 4H–SiC polytype induced by n-type doping (2002)

Spontaneous formation of stacking faults in heavily nitrogen-doped 4H-polytype silicon carbide crystals have been observed by transmission electron microscopy (TEM). Faults were present in as-grown boules and additional faults were generated by annealing in argon at 1150 °C. All faults had identical structure consisting of six layers stacked in a cubic sequence as determined by high-resolution TEM, and were interpreted as a result of two Shockley partial dislocations gliding on two neighboring basal planes of SiC. It is argued that the energy of faulted 4H silicon carbide is lower than the energy of perfect heavily doped (n&amp;gt;1×1019 cm−3) crystal at typical processing temperatures, thus providing a driving force for transformation.
Rapid response of fly populations to gene dosage across development and generations (2022)

Abstract Although the effects of genetic and environmental perturbations on multicellular organisms are rarely restricted to single phenotypic layers, our current understanding of how developmental programs react to these challenges at a systems level remains limited. Here, we have examined the phenotypic consequences of disturbing the classic bicoid network in Drosophila , which is essential for anterior-posterior patterning in the early embryo. This network can be synthetically perturbed by increasing the dosage of bicoid , which causes a posterior shift of the network’s regulatory outputs and a decrease in fitness. To directly monitor network changes across populations and time with extra copies of bicoid , we performed genome-wide EMS mutagenesis, followed by experimental evolution. After only 8-15 generations, experimental populations have normalized patterns of gene expression and increased survival. Using a phenomics approach, we find that populations were normalized through rapid increases in embryo size driven by maternal changes in metabolism and ovariole development. We extend our results to additional populations of flies, demonstrating predictability. Together, our results necessitate a broader view of regulatory network evolution at the systems level. In the future, such synthetic evolution approaches using animal models could provide a generalizable platform for studying the propagation of genetic perturbations across the many layers of complex multicellular systems.
Structure-Based Approach To Identify 5-[4-Hydroxyphenyl]pyrrole-2-carbonitrile Derivatives as Potent and Tissue Selective Androgen Receptor Modulators (2017)

In an effort to find new and safer treatments for osteoporosis and frailty, we describe a novel series of selective androgen receptor modulators (SARMs). Using a structure-based approach, we identified compound 7, a potent AR (ARE EC<sub>50</sub> = 0.34 nM) and selective (N/C interaction EC<sub>50</sub> = 1206 nM) modulator. In vivo data, an AR LBD X-ray structure of 7, and further insights from modeling studies of ligand receptor interactions are also presented.
Data from INI1 Induces Interferon Signaling and Spindle Checkpoint in Rhabdoid Tumors (2023)

&lt;div&gt;Abstract&lt;p&gt;&lt;b&gt;Purpose:&lt;/b&gt; Rhabdoid tumors are rare but aggressive pediatric malignancies characterized by biallelic loss of &lt;i&gt;INI1/hSNF5&lt;/i&gt;. Reintroduction of &lt;i&gt;INI1&lt;/i&gt; causes cell arrest and senescence in rhabdoid cells. Our purpose was to identify &lt;i&gt;INI1&lt;/i&gt;-downstream genes and to determine their functional and therapeutic significance for rhabdoid tumors.&lt;/p&gt;&lt;p&gt;&lt;b&gt;Experimental Design:&lt;/b&gt;&lt;i&gt;INI1&lt;/i&gt; downstream targets in rhabdoid cells were identified using a cDNA microarray analysis and the expression of selected INI1 targets was confirmed by quantitative reverse transcription-PCR, Western analysis, and/or immunohistochemical analysis of rhabdoid cells and primary rhabdoid tumors. To determine the functional significance of downstream targets, activated targets of INI1 were induced and repressed targets of INI1 were knocked down (by using RNA interference) in rhabdoid cells, in the absence of INI1. Consequence of altered expression of INI1 downstream targets for rhabdoid cell survival, cell cycle, and apoptosis was assessed.&lt;/p&gt;&lt;p&gt;&lt;b&gt;Results:&lt;/b&gt; Microarray studies indicated that INI1 activated IFN-stimulated genes at early time points and senescence markers at late time points and repressed mitotic genes such as Polo like kinase 1 (PLK1), selectively in rhabdoid cells. Treatment of rhabdoid cells with recombinant IFNs resulted in induction of IFN-stimulated genes, G&lt;sub&gt;1&lt;/sub&gt; arrest, and flat cell formation. PLK1 was overexpressed in primary human and mouse rhabdoid tumors. RNA interference–mediated knock down of PLK1 in rhabdoid cells resulted in mitotic arrest, aberrant nuclear division, decreased survival, and induction of apoptosis.&lt;/p&gt;&lt;p&gt;&lt;b&gt;Conclusions:&lt;/b&gt; Targeting downstream effectors of INI1 such as IFN pathway and mitotic genes leads to antiproliferative effects in rhabdoid cells. IFN treatment and down-modulation of PLK1 constitute potential novel therapeutic strategies for rhabdoid tumors.&lt;/p&gt;&lt;/div&gt;
M-channel nonrectangular wavelet representation for 2-D signals: basis for quincunx sampled signals (1991)

The authors have described the framework underlying continuous and discrete families of nonseparable two-dimensional wavelets and an M-channel nonrectangular multiresolution wavelet representation for L/sup 2/(R/sup 2/) functions and I/sup 2/(Z/sup 2/) sequences. Focusing on the case of quincunx sampled signals, solutions of digital filter banks for implementing the decomposition with different characteristics of linear phase and regularity for smoothing and wavelet functions are provided.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Low absorption ZnGeP 2 single crystals for tunable mid IR laser applications (2014)

International audience
Design and Optimization of Devices for C-band Photonic-Crystal Waveguide Interleaver with Flattened Pass-band (2008)

We investigate the optimization of a C-band photonic-crystal waveguide (PCW) interleaver with flattened pass-band, using coupled-resonator optical waveguides (CROW). A genetic algorithm (GA) is employed for optimizing the filter devices for high transmittivity and flatness.
<title>Protectively coated phosphors</title> (1999)

We have developed a spraying process for coating individual phosphor particles with electrically conducting, non- conducting, and hybrid films. The phosphor is suspended in either aqueous or non-aqueous solvent containing the appropriate coating materials precursors. Depositions via gelation or precipitation of the precursor material on the particles is prevented before spraying. The suspension is sprayed into a hot zone where the coating either gels or precipitates on the particle surface in-flight. Coatings developed in-flight are more uniform than coatings developed in solution. Typical coating thicknesses of 10 to 90 nm have been achieved in a single pass. Multiple coatings are applied using multiple passes. This process is scalable to industrial sizes and is easily adaptable for coating particles for other applications.
Power Allocation Algorithms for ZF-THP Sum Rate Optimization in Multi-User Multi-Antenna Systems (2012)

In this paper, we study a power allocation technique for Tomlinson-Harashima precoding (THP) in multi- user multiple input single output (MISO) downlink systems. In contrast to previous approaches, a mutual information based method is exploited for maximizing the sum rate of zero-forcing THP systems. Then, we propose a simple power allocation algorithm which assigns proper power level for modulo operated users. Simulation results show that the proposed scheme outperforms a conventional water-filling method, and achieves near optimal performance with much reduced complexity.
Observation of backscattering enhancement through atmospheric phase screens (1989)

We report an experimental investigation of enhanced backscattering (partial phase conjugation) for phase screens generated by a propane gas burner or a group of electric fan heaters. A 10-cm-diameter collimated laser beam is transmitted through the phase screen to a plane mirror and reflected back through the same screen. When the doubly scattered radiation is imaged at infinity, an intensity enhancement is observed in the backscattering direction. The backscattering peak can have a width close to the diffraction limit despite the large scattering that is due to the screens and to the relatively large astigmatism of the collimating mirror. The results are shown to be in good agreement with the theoretical predictions.
Limit of detection of Bacillus anthracis in complex soil and air samples using next-generation sequencing (2012)

Abstract not provided