gebhart/patrepeval huggingface dataset:
Hamiltonian-Driven Hybrid Adaptive Dynamic Programming (2020)

This article presents a model-based hybrid adaptive dynamic programming (ADP) framework consisting of continuous feedback-based policy evaluation and policy improvement steps as well as an intermittent policy implementation procedure. This results in an intermittent ADP with a quantifiable performance and guaranteed closed-loop stability of the equilibrium point. To investigate the effect of aperiodic sampling on the communication bandwidth and the control performance of the intermittent ADP algorithms, we use a Hamiltonian-driven unified framework. With such a framework, it is shown that there is a tradeoff between the communication burden and the control performance. We finally show that the developed policies exhibit Zeno-free behaviors. Simulation examples show the efficiency of the proposed framework along with quantifiable comparisons of the policies with different intermittent information.
Mapping streaming architectures on reconfigurable platforms (2007)

Hardware accelerators, used as application-specific extensions to the computational capabilities of a system, are efficient mechanisms to enhance the performance and reduce the power dissipation in a System On Chip (SoC). These accelerators execute on the computationally critical part of the application, and offload computations from the scalar processors. In this paper, we present a design automation tool that generates accelerators based on a given application kernel. The accelerators are processing streaming data, and support a programming model which can naturally express a large number of embedded applications, and which results in efficient and fast hardware implementations. We demonstrate the applicability of the tool for architectural space exploration for a number of media applications, with results on area, throughput, and clock speeds.
Combinatorial Synthesis of Oxide Powders with an Autopipetting System (2003)

We describe development of a relatively simple, rapid route to produce combinatorial compositional oxide powder libraries by autopipetting of liquid precursors. This partitioning approach should apply equally well to any low viscosity, liquid precursors for the synthesis of oxide powders. A commercial autopipet is modified by fitting a plastic "mask" assembly beneath the pipet array in order to partition and direct liquids into crucibles. A series of 10 mixtures from two precursor solutions can be produced quickly. After they are dispensed, the liquid mixtures are dried in the crucibles and reacted at elevated temperatures to produce oxide powders. In the present work, the viability of the pipetting process is demonstrated by using a polymerizable complex powder synthesis method to produce (1-x) LaAlO(3) - x SrTiO(3) powders. For this system, a reaction at 900 degrees C for 2 h in air was sufficient to yield solid solutions in this system. X-ray powder diffraction was used to determine the pseudocubic unit cell lattice parameter. The linear change of lattice constant with composition confirms the compositional accuracy of the partitioning.
Germanium-on-silicon mid-infrared waveguides and Mach-Zehnder interferometers (2013)

In this paper we describe Ge-on-Si waveguides and Mach-Zehnder interferometers operating in the 5.2 - 5.4 μm wavelength range. 3dB/cm waveguide losses and Mach-Zehnder interferometers with 20dB extinction ratio are presented.
ChemInform Abstract: Exploration of Mixed‐Valence Chemistry: Inventing New Analogues of the Creutz—Taube Ion (2001)

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.
Human Latent Metrics: Perceptual and Cognitive Response Corresponds to Distance in GAN Latent Space (2022)

Abstract Generative adversarial networks (GANs) generate high-dimensional vector spaces (latent spaces) that can interchangeably represent vectors as images. Advancements have extended their ability to computationally generate images indistinguishable from real images such as faces, and more importantly, manipulate images using their inherit vector values in the latent space. This interchangeability of latent vector has the potential to calculate not only distance in the latent space, but also human perceptual and cognitive distance toward images, i.e., how humans perceive and recognize images. However, it is still unclear how the distance in the latent space corresponds to human perception and cognition. Our studies investigated the correspondence between latent vectors and human perception or cognition through psycho-visual experiments that manipulates the latent vectors of face images. In the perception study, a change perception (CP) task was utilized to examine whether participants could perceive visual changes in face images before and after moving an arbitrary distance in the latent space. In the cognition study, a face cognition (FC) task was utilized to examine whether the participants could recognize a face as the same, even after moving an arbitrary distance in the latent space. The results showed that CP and cognition for face images clearly correlates to the distance in the latent space, which can be modeled with a logistic function. We also investigated how the internal layered structure of the latent space correlates to human response by calculating the regression residual error in each layer. As a result, we observed different residual error trends pertaining to CP and FC. Our experiments show that the distance between face images in the latent space corresponds to human perception and cognition for visual changes in face imagery, and additionally indicates that perception and cognition correspond with the latent space differently. By utilizing our methodology, it will be possible to interchangeably convert between the distance in the latent space and the metric of human perception and cognition, potentially leading to image processing that better reflects human perception and cognition.
<title>Microradiometric characterization of experimental thermal pixel array designs</title> (1999)

Advanced in integrated circuit design and micro-machining of silicon have enabled the fabrication of inexpensive, 2D arrays of resistively heated hot-plates, monolithically integrated with addressing the drive circuitry. Infrared scene simulators using these devices have broad-band spectral radiance which approximates naturally occurring thermal radiation. Characterization of these devices involves near field, far field, temporal and electrical measurements. Devices characterized here are experimental SPAWARSYSCEN, San Diego designs which test concepts for inexpensive fabrication, and a British Aerospace experimental hot-plate design for radiant uniformity improvement. Measurements reported here in the mid-band IR include effective temperature, radiance uniformity, temporal response, radiance distributions over single pixels, and effective fill factor. Also included are near field and far field measurements to characterize an add-on device for effective fill factor and efficiency improvements.
Wafer-Bonded Silicon Gamma-Ray Detectors (2008)

A wafer-bonded silicon power transistor has been shown to function as an x-ray detector. The device consists of two thin device wafers bonded onto either side of a 2 mm-thick high-resistivity silicon wafer. The hydrophobic bonding process was performed at 400deg C. This low temperature wafer bonding technique should enable the development of large-area, position-sensitive detectors, using thick, high-resistivity intrinsic silicon bonded to thin readout wafers fabricated using conventional CMOS technology. These devices should enable fabrication of thicker intrinsic silicon detectors than currently available. Thick, position-sensitive detectors based on double-sided strip detectors and pixellated detectors are possible. To demonstrate this, a 1 mm thick gamma-ray detector was created from two 0.5 mm thick wafers that were patterned with gamma-ray strip detectors. The energy resolution of the detector is 8.9 keV FWHM for 60 keV gamma rays at room temperature with a leakage of 0.9 nA while operating at 700 V and fully depleted. Improvements in the technique should allow for thicker detectors with better energy resolution.
Abstract A70: IFN-III is selectively produced by cDC1 and predicts good clinical outcome in human breast cancer (2020)

Abstract Dendritic cells (DCs) play a key role in the orchestration of antitumor immune responses. The cDC1 subset was demonstrated as essential for tumor control and response to immunotherapies in mice, but its precise role in human is largely unexplored. In our study, we combined the analysis of large cohorts of fresh breast and ovarian primary tumors and of public transcriptomic data sets to elucidate human cDC1 functions and clinical impact compared with other DC subsets. We identified a key role for intratumoral cDC1 in producing selectively type III interferon (IFN-III), strongly associated with cytokines and chemokines promoting cytotoxic immune cell recruitment and activation. Of utmost importance, we also revealed a positive impact of IFN-III and cDC1 on patient outcome in many human cancers and identified TLR3-triggering as a therapeutic strategy to trigger IFN-III production by tumor-associated cDC1. These data may pave the way for new IFN or cDC1-targeting antitumor therapies. Citation Format: Margaux Hubert, Coline Couillault, Thien Phong Vu Manh, Vincent Ollion, Helene Lopez-Mestre, Nabil Rahmouni, Janice KIielbassa, Celine Rodriguez, Christophe Sajous, Benoit Dumont, Anne-Claire Doffin, Isabelle Treilleux, Olivier Tredan, Marc Dalod, Nathalie BendrissS-Vermare, Christophe Caux, Jenny Valladeau-Guilemomd. IFN-III is selectively produced by cDC1 and predicts good clinical outcome in human breast cancer [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2018 Nov 27-30; Miami Beach, FL. Philadelphia (PA): AACR; Cancer Immunol Res 2020;8(4 Suppl):Abstract nr A70.
Dynamic Power Management for Embedded Systems (2003)

This paper discusses several of the SOC design issues pertaining to dynamic voltage and frequency scalable systems, and how these issues were resolved in the IBM PowerPC 405LP processor. We also introduce DPM, a novel architecture for policy-guided dynamic power management. We illustrate the utility of DPM by its ability to implement several classes of power management strategies and demonstrate practical results for a 405LP embedded system. I. INTRODUCTION Advances in low-power components and system design have brought general purpose computation into watches, wireless telephones, PDAs and tablet computers. Power management of these systems has traditionally focused on sleep modes and device power management (1). Embedded processors for these applications are highly integrated system-on-a-chip (SOC) de- vices that also support aggressive power management through techniques such as programmable clock gating and dynamic voltage and frequency scaling (DVFS). This paper describes one of these processors, and the development of a software architecture for policy-guided dynamic power management. II. 405LP DESIGN AND POWER MANAGEMENT FEATURES The IBM PowerPC 405LP is a dynamic voltage and frequency scalable embedded processor targeted at high- performance battery-operated devices. The 405LP is an SOC ASIC design in a 0.18 m bulk CMOS process, integrating a PowerPC 405 CPU core modified for operation over a 1.0 V to 1.8 V range with off-the-shelf IP cores. The chip includes a flexible clock generation subsystem, new hardware accelerators for speech recognition and security, as well as a novel standby power management controller (2). In a system we normally operate the CPU/SDRAM at 266/133 MHz above 1.65 V and at 66/33 MHz above 0.9 V, typically providing a 13:1 SOC core power range over the 4:1 performance range. From a system design and active power management perspec- tive the most interesting facets of the 405LP SOC design concern the way the clocks are generated and controlled. These features of the processor are described in the remainder of this Section.
Testing of SMA-enabled active chevron prototypes under representative flow conditions (2008)

Control of jet noise continues to be an important research topic. Exhaust-nozzle chevrons have been shown to reduce jet noise, but parametric effects are not well understood. Additionally, thrust loss due to chevrons at cruise suggests significant benefit from active chevrons. The focus of this study is development of an active chevron concept for the primary purpose of parametric studies for jet noise reduction in the laboratory and secondarily for technology development to leverage for full scale systems. The active chevron concept employed in this work consists of a laminated composite structure with embedded shape memory alloy (SMA) actuators, termed a SMA hybrid composite (SMAHC). SMA actuators are embedded on one side of the neutral axis of the structure such that thermal excitation, via joule heating, generates a moment and deflects the structure. The performance of two active chevron concepts is demonstrated in the presence of representative flow conditions. One of the concepts is shown to possess significant advantages for the proposed application and is selected for further development. Fabrication and design changes are described and shown to produce a chevron prototype that meets the performance objectives.
Signaling pathways of bisphenol A–induced apoptosis in hippocampal neuronal cells: Role of calcium‐induced reactive oxygen species, mitogen‐activated protein kinases, and nuclear factor–κB (2008)

In the present study, we investigated the neurotoxicity of bisphenol A [BPA; 2,2-bis-(4 hydroxyphenyl) propane] and the underlying mechanisms of action in mouse hippocampal HT-22 cells. BPA, known to be a xenoestrogen, is used in the production of water bottles, cans, and teeth suture materials. BPA-treated HT-22 cells showed lower cell viability than did controls at concentrations of BPA over 100 microM. BPA induced apoptotic cell death as indicated by staining with Hoechst 33258, costaining with Annexin V/propidium iodide, and activation of caspase 3. BPA regulated the generation of reactive oxygen species (ROS) by increasing intracellular calcium. BPA activated phosphorylation of extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK), and nuclear translocation of nuclear factor (NF)-kappaB. Pretreatment with specific inhibitors for calcium, ROS, ERK, and JNK decreased BPA-induced cell death; however, inhibitor for NF-kappaB increased BPA-induced cell death. The results suggest that calcium, ROS, ERK, and JNK are involved in BPA-induced apoptotic cell death in HT-22 cells. In contrast, an NF-kappaB cascade was activated for survival signaling after BPA treatment.
COLLUSION FACILITATING AND COLLUSION BREAKING POWER OF SIMULTANEOUS ASCENDING AND DESCENDING PRICE AUCTIONS (2009)

This article demonstrates that a robust tacit collusion evolves quickly in a “collusion incubator” environment but is destroyed by the simultaneous descending price auction. Theories of collusion‐producing behavior, along with the detail of the states on which strategies are conditioned, lead to a deeper understanding of how tacit collusion evolves and its necessary conditions. These theories explain how the descending price auction destroys the collusion. The experiments proceed by conducting simultaneous ascending price auctions in the collusion incubator. Then, once the tacit collusion developed, changing to the descending auction. The change moved prices from collusive levels to near‐competitive levels. ( JEL C71, C92, D43, D44)
Agroecology: The Ecology of Food Systems (2003)

ABSTRACT We present a compelling rationale for defining agroecology as the ecology of food systems. Our purpose is to provide a framework that will guide research, education, and action in the multiple and interacting facets of an increasingly complex global agriculture and food system. To accomplish such goals, it is essential to build bridges and connections among and beyond our disciplines in production agriculture, as well as beyond the farm gate into the rural landscape and community. Fields of sociology, anthropology, environmental sciences, ethics, and economics are crucial to the mix. They provide additional vantage points from which we can view the food system anew, as well as insights on how to establish valuation criteria beyond neoclassical economics. Examples from Mexico, California, and the Nordic Region are used to illustrate the successful implementation of this educational strategy in universities. Design of individual farms using principles of ecology is expanded to the levels of landscape, community, and bioregion, with emphasis on uniqueness of place and the people and other species that inhabit that place. We conclude that defining agroecology as the ecology of food systems will foster the development of broader interdisciplinary research teams and attractive systems-based courses for tomorrow's best students. In contrast to the narrow focus on crop-soil interactions, this definition will help us raise higher-level research questions whose solutions will advance the development of a sustainable agriculture and food system. KEYWORDS: Agricultural systemsholistic researchaction learninginterdisciplinary studies
Low temperature polycrystalline silicon TFT fingerprint sensor with integrated comparator circuit (2004)

We have developed a low-temperature polycrystalline silicon thin film transistor (LTPS-TFT) fingerprint sensor (FPS) based on a newly clarified detection principle and a unique driving scheme. We have also integrated a comparator circuit onto a glass substrate for the first time. The circuit recognizes ridges and valleys in a fingerprint. Using this system, we have succeeded in taking fine fingerprint images at 4 V operation. This fingerprint sensor is suitable for mobile applications that require thin devices that are low cost and low power.
Effect of in-cylinder swirl on engine efficiency and heat rejection in a light-duty diesel engine (2017)

During the last years, the growing awareness about the impacts of climate change lead to an increase in the importance of the efficiency over other criteria in the design of internal combustion engines. In this framework, the heat transfer to the combustion chamber walls can be considered as one of the main sources of indicated efficiency diminution. Hence, the main objective of this research is to thoroughly assess the effect of the swirl ratio on the heat rejection to the chamber walls, and thus on the efficiency, of a fully instrumented four-cylinder direct-injection diesel engine with variable swirl ratio (covering the range from 1.4 to 3). The analysis, based on the engine global energy balance, includes a combination of theoretical and experimental tools such as thermal flow measurement and dedicated thermocouples in the cylinder head and liner. Considering the results, it is shown that an increase in swirl ratio leads to a heat transfer enhancement, along with important changes on the combustion development. As a result of the combination of these two effects, it is shown that intermediate swirl ratios can slightly improve engine efficiency at low load, while increasing swirl worsens the combustion process and efficiency at high load. However, convective heat transfer increases about 3% of the fuel energy in the chamber when swirl ratio increases from 1.4 to 3. The heat rejection characterization is completed with the analysis of the wall temperatures. Despite the observed trends, heat transfer does not seem to be the only key issue for explaining the indicated and brake efficiencies, thus the pumping work plays an important role due to the effect of reducing the intake section to generate the swirl motion.
Enantiomers and Separation (2001)

Symmetry exists in many guises and forms in the natural world and has profound significance to our lives. The concept of symmetry has a broad appeal and so is applied to what we perceive with our senses and right down to the sub atomic level. The Tiger for example has a plane of reflectional symmetry running down the centre of her nose which bisects her body. An additional feature of interest for the chemist is that the symmetry of the Tiger is passed onto her cubs and so conserved through the generations.
Supplementary Methods, Figure Legends, Table Legends from A Cross-Species Analysis in Pancreatic Neuroendocrine Tumors Reveals Molecular Subtypes with Distinctive Clinical, Metastatic, Developmental, and Metabolic Characteristics (2023)

&lt;p&gt;Supplementary information with descriptive methods and legends for supplementary tables and figures.&lt;/p&gt;
8-channel tunable drop device with thermal tuning for 100 GHz channel spacing (2002)

An 8-channel tunable drop module based on efficient thermal tuning of fiber Bragg gratings is reported. The drop module is designed for 100 GHz (0.8 nm) channel spacing in the 1550 nm telecom window. Wavelength shifts of 0.4 nm corresponding to half a channel spacing, and broadening of the transmission spectrum to >0.25 nm at the 25 dB level were achieved through thermal gradients. Isolation at the adjacent channel center was >25 dB. Over the adjacent channel passband isolation was >22 dB.