gebhart/patrepeval huggingface dataset:
Adaptive Repetitive Control with On-line Estimation of Multiple Periods (2009)

In this paper, a new approach to reject quickly any periodic signals with unknown multiple periods is proposed and a useful adaptive repetitive control system with a recursive identification of the multiple periods is presented. The contributions are as follows: Firstly, an effective periodic generator for the case of multiple periods is proposed. The proposed repetitive controller is implemented with much less memory elements than the previous ones. As a result, the degree of the controller is highly reduced and much faster convergence of the controlled error to zero is provided. Secondly, the proposed controller assures the stability of the adaptive repetitive control system. The proposed controller is obtained by solving a simple linear programming problem. The design effort is very small independent of the periods. Thirdly, a simple period identification algorithm is proposed to estimate the multiple periods. The parametric model to be estimated consists of a simple FIR model and the algorithm is based on the well-known recursive least squares method. The effectiveness is demonstrated by simulations.
Pitch tuning induced by optical torque in heliconical cholesteric liquid crystals (2020)

Heliconical cholesteric liquid crystals are expected to be more sensitive to torque induced by light field since their structure allows both bend and twist in molecular orientations, differently from the conventional cholesterics in which only twist deformation is involved, requiring much higher fields. We report here a demonstration of tuning the helical pitch in heliconical cholesterics induced by an optical torque. Experimental observations are in agreement with expectations of the classical theory extended to include the effect of the optical field. A dual control of the helical pitch is achieved including both the low-frequency electric field applied along the helix axis and the optical field orthogonal to it.
LWIR image visualization preserving local details and global distribution by gradient-domain image reconstruction (2017)

Recent developments of long wave infrared (LWIR) devices and LWIR sensor technologies enable us to obtain an LWIR image with high bit depth and low signal-noise ratio. To exploit these recent developments, we propose a novel temperature visualization method that can simultaneously represent global distribution and local details of the input temperature. The global temperature distribution is represented by pseudo color. On the other hand, to manipulate the local temperature details, the output luminance is generated by gradient-domain image reconstruction. Experimental results on real LWIR images show the effectiveness of the proposed method.
3318 Development of Parametric Mesh Morphing Technique (2008)

We developed a method for morphing mesh models. It can be used to change the shape of existing analytical mesh models, and it can be used to generate a mesh model for a new shape by morphing the mesh model for the previous one. Therefore, our method is suitable to use for analysis during the early stage of design because it reduces the amount of time required to generate analytical mesh models. We demonstrated the effectiveness of our method by applying it to models of a connection rod and an engine block.
Molecular Pharmacotherapeutic Targeting of PDE5 for Preservation of Penile Health (2007)

The molecular science of erection physiology has established that phosphodiesterase 5 (PDE5) serves an important biological role in the penis. Current research in the field has revealed this molecular effector to be relevant for penile erection, controlling the erectile response by degrading the second messenger product of the erection mediatory nitric oxide (NO) signaling pathway, 3', 5'-cyclic guanosine monophosphate. Accordingly, PDE5 has been targeted for sexual medicine purposes, and orally administered PDE5 inhibitors such as sildenafil, tadalafil, and vardenafil comprise a foremost intervention for erectile dysfunction (ED). New investigation of PDE5 regulation in the penis has suggested alternative roles for the enzyme and new therapeutic opportunities involving its molecular interactions. In particular, PDE5 function is altered under derangements of androgen deficiency, decreased NO bioactivity, and oxidative stress-associated inflammatory changes, thus contributing to an assortment of erectile disorders including hypogonadism-associated ED, recurrent ischemic priapism, penile vasculopathy, and penile fibrosis. This review provides a critical examination of the multifaceted role of the PDE5 regulatory system in the penis and its relevance for applying existing and emerging therapeutic strategies for erectile disorders.
Effects of potassium on carbon monoxide methanation over supported rhodium films. Technical report (1986)

The reaction of hydrogen with carbon monoxide over Rh/Al/sub 2/O/sub 3/ and Rh/TiO/sub 2/ catalytic films, some of which contained potassium as an additive, has been investigated. The presence of potassium caused the usual gem dicarbonyl and linear CO species on supported rhodium to dissociate at lower temperature than for catalysts containing no potassium. On the other hand, the bridged carbonyl species was significantly enhanced by the presence of potassium. The Rh/TiO/sub 2/ films to which potassium was added catalyzed the production of significant amounts of acetone and acetaldehyde as oxygenated products. It is likely that the bridged carbonyl species is the precursor to oxygenated products.
Digital holographic microscopy for silicon microsystems metrology (2010)

We propose to use digital holographic microscopy (DHM) with an illumination in the near infrared spectrum bandwidth, where the silicon is known to have small absorption. With such an illumination condition, it is possible to observe a wider range of specimens than in the visible spectrum, providing a new metrology technique for 3D silicon micro-systems characterization. Suitability of DHM with near infrared illumination for micro-optical elements and wafer inspection is demonstrated. The intrinsic robustness and speed of the method place DHM as a valuable candidate for real-time quality check inside production chains, opening a wide field of applications in quality control.
Impact of Conjugated Polymer Characteristics on the Enrichment of Single-Chirality Single-Walled Carbon Nanotubes (2022)

Polymer characteristics influence the chiral selectivity and yield in the enrichment of (7,6) from Signis SG76 in toluene by various fluorene homopolymers and copolymers. Fluorene homopolymers such as poly(9,9-di-n-dodecylfluorene) (PFDD) and copolymers with anthracene such as poly[(9,9-dihexylfluorenyl-2,7-diyl)-co-(9,10-anthracene)] (PFH-A) result in high (7,6) selectivities of up to 67 and 72%, respectively. The selectivity is calculated by optical absorption using a known extinction coefficient and also evaluated by Raman scattering and photoluminescence excitation. In contrast, poly[(9,9-dioctyl-2,7-divinylenefluorenylene)-alt-co-(9,10-anthracene)] (PFO=A), with a double-bond spacer, results in (9,5) dominant extractions with the purity of (9,5) up to 80% after ultracentrifugation, which is believed to be the first report on the successful enrichment of (9,5) by conjugated polymers. The chiral selectivity is also greatly impacted by the length of alkyl side chain of fluorene homopolymers: hexyl group has low selectivity, while octyl, dodecyl, and tetradecyl (PFTD) groups show high selectivity toward (7,6), and the octadecyl group is prone to include bigger tubes. Interestingly, a chiral selection transition from (7,6) to (8,6) occurred using PFTD after a few enrichment cycles. The chiral purity of (8,6) was greatly improved from 50 to 86% after slow filtration. Polymer molecular weight (MW, here PFDD) also plays a role in the selectivity and yield. Low MW leads to a low yield, and high MW leads to a low selectivity, with the optimal range (Mn) being ca. 20–35 kDa when the polydisperse index is ca. 2–3. Molecular dynamics simulation confirms that different lengths of side chain of polyfluorene have different wrapping stabilities toward specific chirality, where PFTD shows greater stability toward (8,6) than (7,6).
Cooperative Multiple Access for Wireless Networks: Protocols Design and Stability Analysis (2006)

A new cooperative multiple-access protocol is proposed in which a relay utilizes the empty time slots available in a TDMA frame. In particular, the relay helps the users in the network forwarding their unsuccessfully transmitted packets during the empty time slots. This will better utilize the channel resources that are otherwise wasted, and will introduce on-demand spatial diversity into the network. The proposed cooperation protocol is also different from those proposed in the literature as it does not result in any bandwidth loss. Two different protocols are proposed to implement this new multiple-access scheme, and their stability regions are characterized. The stability regions of the proposed protocols are shown to contain that of TDMA without relaying, hence, relay deployment in wireless networks can increase the network throughput capacity. Moreover, the analysis and numerical results reveal that the proposed cooperative multiple access protocols can simultaneously achieve higher stable throughput and less energy expenditure compared to TDMA without relaying.
Quasi-adiabatic continuation in gapped spin and fermion systems: Goldstone’s theorem and flux periodicity (2007)

We apply the technique of quasi-adiabatic continuation to study systems with continuous symmetries. We first derive a general form of Goldstone's theorem applicable to gapped nonrelativistic systems with continuous symmetries. We then show that for a fermionic system with a spin gap, it is possible to insert $\pi$-flux into a cylinder with only exponentially small change in the energy of the system, a scenario which covers several physically interesting cases such as an s-wave superconductor or a resonating valence bond state.
Acute Management of Exercise Treadmill-Associated Injuries in Children (2003)

Background: Exercise treadmills have grown in popularity in the past few years. The addition of this type of equipment in the home offers opportunity for injury, particularly in children. Methods: Patients were identified both prospectively and retrospectively by review of the trauma registry and medical records. Patient data, medical treatment, and hospital costs were obtained from medical records. Functional outcome was assessed by the modified Michigan Hand Outcomes Questionnaire. Results: Nine patients were observed with 14 injuries. The average age was 3.4 years, with average clinical follow-up of 9.1 weeks. The primary injury was friction burn (eight of nine), with one patient sustaining a thumb distal tuft fracture. Two patients required operations and all patients had a good functional outcome (124.5 of 125 on the Michigan Hand Outcomes Questionnaire). Conclusion: Treadmill-associated injuries primarily involve hand injury in children. These injuries usually do not require surgical intervention and are preventable. Prevention modalities include additional manufacture safety features, warning labels, and parental education.
Optical Immunosensor and ELISA for the Analysis of Pyrethroids and DDT in Environmental Samples (2007)

An optical immunosensor (AQUA-OPTOSENSOR) and ELISA (enzyme-linked immunosorbent assay) for the analysis of pyrethroids and DDT in river water and/or sediment, are described. The optical immunosensor consists of a bench-top optical read-out-device and disposable single-use sensor chips. ELISA was carried out in the coating antigen format. As examples, phenothrin (pyrethroid) and p,p'-DDT were chosen. Herein we describe the overall strategy, the set-up and principle of the immunosensor platform, and show representative results for immunosensor and ELISA analysis. The immunosensor employs fluorophore (Oyster®-645)-labeled monoclonal antibodies (mouse mAb Py-1 and rat mAb DDT 7C12), and makes use of the evanescent field, thus operating without washing steps. ELISA in the coating antigen format uses a second antibody labeled with peroxidase. Both, phenothrin and p,p'-DDT can be analyzed with these immunochemical techniques in the low ppb levels. Advantages and drawbacks of both immunochemical platforms are discussed.
Iterative Experimental Design to Mature Cognitive State Classification Techniques from the Laboratory to Field Settings (2007)

This paper summarizes the research conducted on two parallel and complementary thrusts: cognitive state assessment (CSA) and mitigations development for augmented Cognition Systems. Cognitive workload classification research has been largely been limited to laboratory contexts with well defined tasks. However, as the technology matures, it is important to evaluate real-time, EEG- and ECG-based cognitive workload classification techniques when they are fully subject to the noise, motion, weather, and wide range of physical and cognitive tasks inherent in dismounted operational environments. The hardware and software infrastructure must reliably collect clean sensor data, mobile processing is needed to log and process the data, and the experimental design must reliably put participants in the cognitive states of interest. As mitigations mature, automation etiquette plays an important role in ameliorating the negative effects of strongly adaptive systems. In addition to the practical and system configuration challenges faced when moving from the laboratory to field studies, there are issues of experimental control and the characterization of cognitive state in less constrained task environments. A key component of an evaluation is to compare the classification results with &amp;quot;ground truth, &amp;quot; i.e. the actual workload experienced by the participant. While in the laboratory it is possible to develop simple tasks where workload is manipulated precisely and consistently, in an unconstrained field environment it becomes substantially harder to manipulate workload
Optimisation des PADs RF pour des Applications Millimétriques (2009)

International audience
Metal–organic framework-guided growth of Mo2C embedded in mesoporous carbon as a high-performance and stable electrocatalyst for the hydrogen evolution reaction (2016)

Metal–organic framework is utilized as a confined-template for restrained nucleation and growth of Mo<sub>2</sub>C electrocatalyst for highly efficient water splitting.
Forward–backward asymmetry of Drell–Yan lepton pairs in pp collisions at $$\sqrt{s} = 8$$ s = 8 $$\,\mathrm{TeV}$$ TeV (2016)

A measurement of the forward-backward asymmetry [Formula: see text] of oppositely charged lepton pairs ([Formula: see text] and [Formula: see text]) produced via [Formula: see text] boson exchange in pp collisions at [Formula: see text] [Formula: see text] is presented. The data sample corresponds to an integrated luminosity of 19.7[Formula: see text] collected with the CMS detector at the LHC. The measurement of [Formula: see text] is performed for dilepton masses between 40[Formula: see text] and 2[Formula: see text] and for dilepton rapidity up to 5. The [Formula: see text] measurements as a function of dilepton mass and rapidity are compared with the standard model predictions.
Development of a Novel Micro Wire-EDM Mechanism for the Fabricating of Micro Parts (2006)

The wire running system of the tabletop Wire-EDM machine for making intricate micro parts developed in our previous study is improved in the paper. A very simple but novel micro-wire cutting mechanism that allows the use of the thin wire of a diameter as small as 20μm is designed. The vibration of the micro wire is suppressed by implementing a unique tension control principle and vibration absorbers. In actual machining the workpiece is mounted on the spindle having indexing ability. By proper planning the wire moving path, micro gear, micro turbine, micro screw, etc. can be manufactured. In the paper the micro bevel gear, which has special appearance and is very difficult if not impossible to be machined by other micro fabrication technologies, is also manufactured satisfactorily.
Analytic Determination of Wrench Closure Workspace of Spatial Cable Driven Parallel Mechanisms (2015)

This paper proposes an efficient way of determining analytically the Wrench Closure Workspace (WCW) of spatial redundant cable-driven parallel mechanisms (CDPM). The method builds upon the boundary surface equations obtained from the null space of the structure matrix of CDPM. The set of feasible solutions is obtained that satisfies positive tension in the cables. This method was applied to characterize the WCW of spatial CDPM which has redundancy of 1 or 2. A simulation study was carried out to validate the accuracy and efficiency of the method. Several advantages over conventional approaches for determining the WCW were identified through simulation.
c-Myc and Rel/NF-κB Are the Two Master Transcriptional Systems Activated in the Latency III Program of Epstein-Barr Virus-Immortalized B Cells (2009)

The Epstein-Barr virus (EBV) latency III program imposed by EBNA2 and LMP1 is directly responsible for immortalization of B cells in vitro and is thought to mediate most immunodeficiency-related posttransplant lymphoproliferative diseases in vivo. To answer the question whether and how this proliferation program is related to c-Myc, we have established the transcriptome of both c-Myc and EBV latency III proliferation programs using a Lymphochip specialized microarray. In addition to EBV-positive latency I Burkitt lymphoma lines and lymphoblastoid cell lines (LCLs), we used an LCL expressing an estrogen-regulatable EBNA2 fusion protein (EREB2-5) and derivative B-cell lines expressing a constitutively active or tetracycline-regulatable c-myc gene. A total of 897 genes were found to be fourfold or more up- or downregulated in either one or both proliferation programs compared to the expression profile of resting EREB2-5 cells. A total of 661 (74%) of these were regulated similarly in both programs. Numerous repressed genes were known targets of STAT1, and most induced genes were known to be upregulated by c-Myc and to be involved in cell proliferation. In keeping with the gene expression patterns, inactivation of c-Myc by a chemical inhibitor or by conditional expression of dominant-negative c-Myc and Max mutants led to proliferation arrest of LCLs. Most genes differently regulated in both proliferation programs corresponded to genes induced by NF-kappaB in LCLs, and many of them coded for immunoregulatory and/or antiapoptotic molecules. Thus, c-Myc and NF-kappaB are the two main transcription factors responsible for the phenotype, growth pattern, and biological properties of cells driven into proliferation by EBV.
Synthesis and stereochemistry of ethyl (E)-3-methyl-3-phenylglycidate and (E)- and (Z)-1,3-diphenyl-2-buten-1-one oxide (1979)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and stereochemistry of ethyl (E)-3-methyl-3-phenylglycidate and (E)- and (Z)-1,3-diphenyl-2-buten-1-one oxideJohn M. Domagala and Robert D. BachCite this: J. Org. Chem. 1979, 44, 18, 3168–3174Publication Date (Print):August 1, 1979Publication History Published online1 May 2002Published inissue 1 August 1979https://pubs.acs.org/doi/10.1021/jo01332a015https://doi.org/10.1021/jo01332a015research-articleACS PublicationsRequest reuse permissionsArticle Views418Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
SR-A, MARCO and TLRs Differentially Recognise Selected Surface Proteins from<i> Neisseria meningitidis</i>: an Example of Fine Specificity in Microbial Ligand Recognition by Innate Immune Receptors (2008)

Macrophages express various classes of pattern recognition receptors involved in innate immune recognition of artificial, microbial and host-derived ligands. These include the scavenger receptors (SRs), which are important for phagocytosis, and the Toll-like receptors (TLRs) involved in microbe sensing. The class A macrophage scavenger receptor (SR-A) and macrophage receptor with a collagenous structure (MARCO) display similar domain structures and ligand-binding specificity, which has led to the assumption that these two receptors may be functionally redundant. In this study we show that SR-A and MARCO differentially recognise artificial polyanionic ligands as well as surface proteins from the pathogenic bacterium Neisseria meningitidis. We show that, while acetylated low-density lipoprotein (AcLDL) is a strong ligand for SR-A, it is not a ligand for MARCO. Of the neisserial proteins that were SR ligands, some were ligands for both receptors, while other proteins were only recognised by either SR-A or MARCO. We also analysed the potential of these ligands to act as TLR agonists and assessed the requirement for SR-A and MARCO in pro-inflammatory cytokine induction. SR ligation alone did not induce cytokine production; however, for proteins that were both SR and TLR ligands, the SRs were required for full activation of TLR pathways.