gebhart/patrepeval huggingface dataset:
Printed Fractal Folded Coplanar-strips-fed Array Rectenna for IoE Applications (2022)

This paper presents a low-cost antenna integrable to a large set of indoor common building materials.Employing the printing technology on thin transparent polyethylene terephthalate material and using available building materials not only leads to a low-cost environmentally friendly solution for the expected massive sensor deployment but also eliminates the dispersive behavior of the materials that are interacting with them.A coplanar-strips fed fractal folded antenna element was designed and validated experimentally with four different materials including gypsum, plywood, and plexiglass.The aesthetically viable ground-free antenna achieves wideband performance and radiates in the broadside plane perpendicularly to the wall.The single antenna element covers the frequency band of 2.18-3.96GHz with a gain of 1 dBi at 2.4 GHz.To take advantage of the large available surface, a high efficiency 2.4 GHz array rectenna for powering electronic devices intended for IoE technology is proposed.The proposed array rectenna has a dimension of 384 × 354 × 6.475 mm 3 and employs a single diode as the rectifier element.The measured results for the presented array rectenna reveal an AC-DC powerconversion-efficiency (PCE) of more than 20% for input powers as low as 0.025 µW/cm 2 with a peak PCE of 61.3% at 4.03 µW/cm 2 .
Toward an Integrated Solution to Mitigate the Impact of Volcanic Ash to Aviation (2015)

The science community is making a concerted effort to improve the reliability of dispersion models for the forecasting of volcanic ash plumes. Toward this end, it has been observed that the assimilation of diverse, accurate and frequent surface, airborne and satellite observations of the source and distal ash plumes may hold the key. Various international research organizations and operational agencies make these observations using a variety of active and passive remote sensing systems and use them to initialize atmospheric trajectory and dispersion models. These observation systems range from surface LIDAR and ceilometers, to airborne radiometers and nephelometers, to satellite radiometers, multi-spectral imagers, LIDAR and UV-photometers. None of these systems alone is a panacea, however, their synergistic application holds great promise toward solving this complex problem. Additionally, the aeronautical and science communities are working to better understand the quantitative thresholds and tolerances of aviation systems to volcanic ash to better inform scientists of the accuracy requirements for dispersion model forecasts. A number of the most recent and promising efforts in all of these area are discussed in this presentation.
Neutron Imaging of Water Transport in Polymer-Electrolyte Membranes and Membrane-Electrode Assemblies (2013)

Neutron imaging was been widely used to study the water distribution in proton exchange membrane fuel cell flow fields and gas diffusion layer. However, due to the limitation of spatial resolution, there has been little focus on the water transport process in the membrane and catalyst layer. Here we report on measurements made on thick membranes under saturation gradients which show no “jump condition” and on thick cathode catalyst layers to understand the water transport issues in a non-precious metal catalyst. Finally, we speculate on the possibility of obtaining neutron images with ~1 µm spatial resolution.
Low energy electron beam induced damage on InGaN/GaN quantum well structure (2011)

In this paper, low energy electron beam (5–20 keV, 0–500 μAs/cm2) induced damage on a GaN/InGaN/GaN near-surface quantum well structure is studied. Exposure to low energy electron beam is shown to significantly reduce the optical quality of the structure. It is also observed that reducing the electron beam energy causes larger PL intensity reduction. This can be explained by considering the beam penetration depth, which is shown to be smaller with lower e-beam energies. The damage is believed to be attributed to enhanced dislocation mobility upon low energy electron beam irradiation. However, further studies are needed to confirm the mechanism. These results should be taken into consideration in low energy electron beam related sample characterization and preparation.
Smartphone-Based Colorimetric Analysis of Urine Test Strips for At-Home Prenatal Care (2022)

The findings demonstrate that routine urine examinations can be transferred into the home environment using a smartphone. Simultaneously, human error is avoided, accuracy is increased and medical staff is relieved.
Multimodal Imaging Mass Spectrometry of Murine Gastrointestinal Tract with Retained Luminal Content Shows Molecular Localization Patterns (2021)

ABSTRACT Digestive diseases impact 62 million people a year in the United States. Despite the central role of the gut to human health, past imaging mass spectrometry (IMS) investigations into the gastrointestinal tract are incomplete. The gastrointestinal tract, including luminal content, harbors a complex mixture of microorganisms, host dietary content, and immune factors. Existing imaging approaches remove luminal content, and images focus on small regions of tissue. Here, we demonstrate the use of a workflow to collect multimodal imaging data for both intestinal tissue and luminal content. This workflow for matrix-assisted laser desorption/ionization imaging mass spectrometry retains luminal content and expands the amount of tissue imaged on one slide. Results comparing tissue and luminal content show unique molecular distributions using multimodal imaging modalities including protein, lipid, and elemental imaging. Leveraging this method to investigate intestinal tissue infected with Clostridioides difficile compared to control tissue shows clear differences in lipid abundance of various lipid classes in luminal content during infection. These data highlight the potential for this approach to detect unique biological and markers of infection in the gut.
Maximizing Oxygen Evolution Performance on a Transparent NiFeO<sub><i>x</i></sub>/Ta<sub>3</sub>N<sub>5</sub> Photoelectrode Fabricated on an Insulator (2021)

A transparent Ta<sub>3</sub>N<sub>5</sub> photoanode is a promising candidate for the front-side photoelectrode in a photoelectrochemical (PEC) cell with tandem configuration (tandem cell), which can potentially provide high solar-to-hydrogen (STH) energy conversion efficiency. This study focuses in particular on the semiconductor properties and interfacial design of transparent Ta<sub>3</sub>N<sub>5</sub> photoanodes fabricated on insulating quartz substrates (Ta<sub>3</sub>N<sub>5</sub>/SiO<sub>2</sub>), typically the geometric area of 1 × 1 cm<sup>2</sup> in contact with indium on its edge. This material utilizes the self-conductivity of Ta<sub>3</sub>N<sub>5</sub> to make the PEC system operational, and the electrode would strongly reflect the intrinsic nature of Ta<sub>3</sub>N<sub>5</sub> without a back contact that is commonly introduced. First, PEC measurements using acetonitrile (ACN)/H<sub>2</sub>O mixed solution were made to elucidate the intrinsic photoresponse in the presence of tris(2,2'-bipyridine)ruthenium(II) bis(hexafluorophosphate) (Ru(bpy)<sub>3</sub>(PF<sub>6</sub>)<sub>2</sub>) without water contact which avoids a multielectron-transfer oxygen evolution reaction (OER) and photoinduced self-oxidation. The potential difference between the onset potential of Ru<sup>2+</sup> PEC oxidation by Ta<sub>3</sub>N<sub>5</sub>/SiO<sub>2</sub> and the redox potential of Ru<sup>2+/3+</sup> in the nonaqueous environment was about 0.7 V. While a stable photoanodic response was observed for Ta<sub>3</sub>N<sub>5</sub>/SiO<sub>2</sub> in the nonaqueous phase, the addition of a small quantity of water into this nonaqueous system led to the immediate deactivation of Ta<sub>3</sub>N<sub>5</sub>/SiO<sub>2</sub> photoanode under illumination by self-photooxidation to form TaO<sub><i>x</i></sub> at the solid/water interface. In aqueous phase, flatband potentials estimated from Mott-Schottky analysis varied with solution pH (constant potential against reversible hydrogen electrode (RHE)). Photoelectrode modification by a transparent NiFeO<sub><i>x</i></sub> layer was attempted. The complete coverage of the Ta<sub>3</sub>N<sub>5</sub> surface with transparent NiFeO<sub><i>x</i></sub> electrocatalysts, achieved by an optimized spin-coating protocol with controlled Ni-Fe precursors, allowed for the successful protection of Ta<sub>3</sub>N<sub>5</sub> and demonstrated an extremely stable photocurrent for hours without any additional protective layers. The stability of the resultant NiFeO<sub><i>x</i></sub>/Ta<sub>3</sub>N<sub>5</sub>/SiO<sub>2</sub> was limited not by Ta<sub>3</sub>N<sub>5</sub> but mainly by a NiFeO<sub><i>x</i></sub> electrocatalyst due to Fe dissolution with time.
Thermochromic Biopolymer Based on Natural Anthocyanidin Dyes (2013)

Recently a novel thermochromic poly(lactic acid) (PLA)-composite material was presented. Depending on temperature the incorporated anthocyanidin dye was found to be present either in its neutral or anionic anhydrobase form. A reversible formation of PLA-dye complexes triggered by conformational changes of the polymer backbone was proposed to explain this thermochromic effect. In order to study the influence of the dye structure on the PLA-dye complex formation and on the thermochromic properties of the PLA-composite material a variation of the anthocyanidin dye structure was investigated. The results indicate that a hydroxyl group in 3’-position of the anthocyanidin dye resulting in the presence of adjacent hydroxyl groups is mandatory for the PLA-anthocyanidin dye complex formation and thus for the occurrence of thermochromism.
Fidelity of optical phase conjugation by degenerate four-wave mixing in semiconductor glasses and ruby (1989)

The fidelity of phase conjugation by degenerate four-wave mixing in ruby and semiconductor-doped glasses has been measured by means of our own modified Twyman–Green interferometer [Opt. Lett. 14, 183 (1989)] implementing two phase conjugate mirrors. It is shown that the fidelity of phase conjugators with an OG530 color filter as the nonlinear medium reaches a value of 99%. The fidelity of ruby is also reported. Additionally the effect of the recording system on the value of the fidelity is discussed.
Postmarketing Analysis of Aflibercept-Related Sterile Intraocular Inflammation (2015)

With the largest number of reported cases of aflibercept-related sterile inflammation to our knowledge, this analysis suggests typical findings and an often favorable prognosis of this event. Analysis of real-world, postmarketing data has limitations, and these findings should be considered as hypothesis-generating assessments rather than a definitive reflection of this event or its typical course. Distinguishing sterile inflammation and infectious endophthalmitis at the time of presentation may often be difficult, and cautious evaluation and management of these patients are warranted. The ASRS TSC encourages active postmarketing surveillance by all physicians.
Struktur von linearen zeitdiskreten Systemen (1998)

This paper investigates the BIBO-stable linear systems. It is shown that such systems can split into two subsystems. One of these subsystems is a convolution system. The second component does not represent a convolution. The results show that not each LTI-system is a convolution system. The input-output behaviour of the LTI-systems is analyzed for special signal classes. The structure of energy stable systems is also investigated. It is shown, that the input-output-behaviour of these systems is given by the familiar sum.
ChemInform Abstract: TRICYCLIC AROMATIC KETONES BY CYCLIACYLATION OF CARBOXYLIC ACID DERIVATIVES OF INDAN, TETRALIN, AND BENZOSUBERANE (1980)

Abstract Aus den Acrylsäuren (I) erhält man durch katalytische Hydrierung die Propionsäuren (II), und durch Hydrid‐Reduktion die Alkohole (III); letztere werden über die Bromide (IV) und die entsprechenden Nitrile in die Buttersäuren (V) übergeführt.
Chronic<i>in vivo</i>stability assessment of carbon fiber microelectrode arrays (2016)

This study has validated the use of carbon fiber microelectrode arrays as a chronic neural recording technology. These electrodes have demonstrated the ability to detect single units with high amplitude over 3 months, and show the potential to record for even longer periods. In addition, the minimal reactive response should hold stable indefinitely, as any response by the immune system may reach a steady state after 12 weeks.
Modular Decentralized Robot Control (2005)

This paper addresses the design, verification and implementation of a fully decentralized Linear Quadratic Gaussian (LQG) control system based on transputer architecture. The existing algorithms of a fully decentralized sensing architecture are extended to deal with linear control problems in general and specifically in the area of motor actuation for a modular, decentralized navigating robot.
Hypothalamic Cocaine- and Amphetamine-Regulated Transcript (CART) and Agouti-Related Protein (AgRP) Neurons Coexpress the NOP1 Receptor and Nociceptin Alters CART and AgRP Release (2005)

Nociceptin or orphanin FQ (N/OFQ) and its receptor NOP1 are expressed in hypothalamic nuclei involved in energy homeostasis. N/OFQ administered by intracerebroventricular or arcuate nucleus (ARC) injection increases food intake in satiated rats. The mechanisms by which N/OFQ increases food intake are unknown. We hypothesized that N/OFQ may regulate hypothalamic neurons containing peptides involved in the control of food intake such as cocaine- and amphetamine-regulated transcript (CART), alphaMSH, neuropeptide Y (NPY), and agouti-related protein (AgRP). We investigated the ability of N/OFQ to alter the release of CART, alphaMSH, NPY, and AgRP using ex vivo medial basal hypothalamic explants. Incubation of hypothalamic explants with N/OFQ (1, 10, 100 nM) resulted in significant changes in CART and AgRP release. One hundred nanomoles N/OFQ caused a 33% decrease in release of CART (55-102) immunoreactivity (IR) and increased release of AgRP-IR to 163% but produced no change in either alphaMSH-IR or NPY-IR. Double immunocytochemistry/in situ hybridization demonstrated that CART-IR and NOP1 mRNA are colocalized throughout the hypothalamus, in particular in the paraventricular nucleus, lateral hypothalamus, zona incerta, and ARC, providing an anatomical basis for N/OFQ action on CART release. Dual in situ hybridization demonstrated that AgRP neurons in the ARC also express the NOP1 receptor. Our data suggest that nociceptin via the NOP1 receptor may increase food intake by decreasing the release of the anorectic peptide CART and increasing the release of the orexigenic peptide AgRP.
GAN-based single-image reflectance removal using depth of field guidance (2020)

Eliminating reflections on a single-image has been a challenging issue in image processing and computer vision, because defining an elaborate physical model to separate irregular reflections is almost impossible. In fact, while human vision can automatically focus on the transmitted object, basic deep neural networks even have a limitation to learn the attentive mechanism. In this paper, to solve this problem, a Generative Adversarial Networks guided by using Depth of Field (DoF) is proposed. The DoF is formulated by using image statistics and indicates the focused region of image. Thus, by adding this information to both generative and discriminative networks, the generator focuses on the transmitted layer and the discriminator will be able to estimate the local consistency of the restored areas. Since it is intractable to obtain the ground-truth transmitted layer in real images, a dataset with synthetic reflection is considered for quantitative evaluation. The experimental results demonstrate that the proposed method outperforms the existing approaches in both PSNR and SSIM. The visual outputs indicate that the proposed network convincingly eliminates the reflection and produce sufficient transmitted layers as compared to the previous methods.
Classifying murine glomerulonephritis using optical coherence tomography and optical coherence elastography (2016)

Acute glomerulonephritis caused by antiglomerular basement membrane marked by high mortality. The primary reason for this is delayed diagnosis via blood examination, urine analysis, tissue biopsy, or ultrasound and X-ray computed tomography imaging. Blood, urine, and tissue-based diagnoses can be time consuming, while ultrasound and CT imaging have relatively low spatial resolution, with reduced sensitivity. Optical coherence tomography is a noninvasive and high-resolution imaging technique that provides superior spatial resolution (micrometer scale) as compared to ultrasound and CT. Changes in tissue properties can be detected based on the optical metrics analyzed from the OCT signals, such as optical attenuation and speckle variance. Furthermore, OCT does not rely on ionizing radiation as with CT imaging. In addition to structural changes, the elasticity of the kidney can significantly change due to nephritis. In this work, OCT has been utilized to quantify the difference in tissue properties between healthy and nephritic murine kidneys. Although OCT imaging could identify the diseased tissue, its classification accuracy is clinically inadequate. By combining optical metrics with elasticity, the classification accuracy improves from 76% to 95%. These results show that OCT combined with OCE can be a powerful tool for identifying and classifying nephritis. Therefore, the OCT/OCE method could potentially be used as a minimally invasive tool for longitudinal studies during the progression and therapy of glomerulonephritis as well as complement and, perhaps, substitute highly invasive tissue biopsies. Elastic-wave propagation in mouse healthy and nephritic kidneys.
YEREL GÜNLÜK GAZETELERDE SPORUN YER ALIŞI (1999)

Yerel gunluk gazeteler yayimlandiklari sehir ile ilgili ayrintili haberler vermeyi amaclarlar. Bu gazetelerin spor sayfalari da o yoredeki sportif aktivitelerle ilgili, gunluk spor haberlerinin yer aldigi sayfalardir. Bu arastirmada ulkemizin iki farkli bolgesinde yer alan Adana ve Bursa sehirlerine ait dort gunluk gazetenin spor sayfalari bir ay sureyle incelenmistir. Spor haberlerinin yazi ve fotograf olarak dagilimlari, cinsiyetlere gore dagilimlari, branslara gore dagilimlari cm2 olarak tespit edilmistir. Gazete alan hesaplamalari , yuzde (%) ve istatistiki degerlendirmeler Microsoft-Excel bilgisayar programinda yapilmistir. Elde edilen sonuclar, tum takim sporlarin yuzde degerlerinin ferdi sporlardan daha yuksek oldugu ve erkek spor haberlerinin yuzde degerlerinin yazi ve fotograf olarak bayan spor haberlerinden daha yuksek oldugunu gostermektedir.
Synthèse et caractérisation de catalyseurs de NOx à base de silice mésoporeuse de type MSU contenant de platine et l'acide 12-tungstophosphorique H3PW12O40 (2006)

Congrès du 22.05.2006 au 25.05.2006
Conjugative R plasmids in group C and G streptococci (1981)

Two streptococcal isolates of groups C and G harbored conjugative R plasmids with molecular weights of 17 X 10(6) (pIP646) and 20 X 10(6) (pIP920). These plasmids carried genetic markers for resistance to macrolides and related drugs, as well as to chloramphenicol (pIP920), and have very similar HindIII restriction enzyme patterns.
A phage antibody identifying an 80-kDa membrane glycoprotein exclusively expressed on a subpopulation of activated B cells and hairy cell leukemia B cells (1999)

We have isolated a phage display library-derived monoclonal antibody, phab V-3, that identifies a membrane glycoprotein of approximately 80 kDa which is expressed on a subpopulation of activated B lymphocytes in secondary lymphoid organs. In agreement with their activated phenotype, phab V-3(+) B cells display a blast-like morphology, and are prone to spontaneous apoptosis in vitro, unless rescued by stimulation with CD40 ligand (CD40L). The expression of the phab V-3 molecule coincides with B cells that produce high levels of IgM, IgG and IgA in vitro upon stimulation with CD40L in combination with IL-2 and IL-10. Immunofluorescent analysis of B cell malignancies unveiled that the phab V-3 molecule was uniquely expressed on hairy cell leukemia (HCL) B cells. Similar to phab V-3(+) tonsils B cells, HCL B cells have been reported to express CD11c, CD95 and CD27, which might indicate that the phab V-3(+) B cells in HCL are the malignant counterpart of the phab V-3(+) B cell subpopulation.
Cancelable iris biometrics and using Error Correcting Codes to reduce variability in biometric data (2009)

With the increasing use of biometrics, more and more concerns are being raised about the privacy of the personal biometric data. Conventional biometric systems store biometric templates in a database. This may lead to the possibility of tracking personal information stored in one database by getting access to another database through cross-database matching. Moreover, biometric data are permanently associated with the user. Hence if stolen, they are lost permanently and become unusable in that system and possibly in all other systems based on that biometrics. In order to overcome this non-revocability of biometrics, we propose a two factor scheme to generate cancelable iris templates using iris-biometric and password. We employ a user specific shuffling key to shuffle the iris codes. Additionally, we introduce a novel way to use error correcting codes (ECC) to reduce the variabilities in biometric data. The shuffling scheme increases the impostor Hamming distance leaving genuine Hamming distance intact while the ECC reduce the Hamming distance for genuine comparisons by a larger amount than for the impostor comparisons. This results in better separation between genuine and impostor users which improves the verification performance. The shuffling key is protected by a password which makes the system truly revocable. The biometric data is stored in a protected form which protects the privacy. The proposed scheme reduces the equal error rate (EER) of the system by more than 90% (e.g., from 1.70% to 0.057% on the NIST-ICE database).
GaN MMIC amplifiers for W-band transceivers (2009)

This paper presents W-band monolithic microwave integrated circuit (MMIC) amplifiers with grounded coplanar waveguide (GCPW) in 0.12μm GaN HEMT technology. A fabricated four-stage low-noise amplifier (LNA) exhibited a record gain of 23 dB at 76.5 GHz and a first reported noise figure (NF) of 3.8 dB at 80 GHz for any W-band GaN MMIC. Another MMIC power amplifier (PA) delivered an output power of 25.4 dBm at 76.5 GHz with continuous wave (CW) operation. To our knowledge, this is the first demonstration of GaN LNA as well as GaN MMICs with GCPW in the W-band. In addition, a practical design technique to prevent instability of the W-band MMIC is described.
Development and characterization of a hexamodal imaging nanoparticle (2015)

Porphyrin-phospholipids are used to coat upconversion nanoparticles in order to generate a new biocompatible material. The nanoparticles are characterized in vitro and in vivo for imaging via fluorescence, upconversion, positron emission tomography, computed tomography.