gebhart/patrepeval huggingface dataset:
Feasibility analysis of vehicular dynamic spectrum access via queueing theory model (2011)

In this article, we present a feasibility analysis for performing vehicular dynamic spectrum access across vacant television channels via a queueing theory approach. In this study, we model the vacant TV channels as a multiserver, multipriority, preemptive queue. Queueing theory has been extensively employed in the open literature to model multiple access architectures as well as analyze network performance in both wired and wireless communication frameworks. On the other hand, to the best of the authors' knowledge, not many researchers have tried to resort to a queueing theory approach to analyze dynamic spectrum access networks on a system level, including the specific case of vehicular dynamic spectrum access (VDSA). Leveraging previously reported quantitative measurements obtained from a wireless spectrum measurement campaign conducted along a major interstate highway (I-90) located in Massachusetts, we modeled vacant TV channels as a multiserver queueing system in which available servers represent vacant TV channels. The servers become unavailable from the perspective of a vehicle in a time/location-varying fashion such that they represent spatially occupied TV channels. Both M/M/m and M/G/m models are employed to evaluate the probability that a vehicle finds all channels busy, as well as to derive the expected waiting times. We also consider cases where there are multiple priority classes of service requests such as a channel request by a first--responder vehicle.
Low-Temperature Characteristics of Buried-Channel Charge-Coupled Devices (1983)

The characteristics of buried-channel CCDs in the temperature range between 40 K and 300 K were studied. It was found that the transfer loss had a peak at about 130 K and increased rapidly below 90 K. In these specific temperature regions, the transfer loss depended on the clock period, the data cycle time and the clock fall time. The characteristics were analyzed based on free-charge transfer mechanisms and the Shockley-Read-Hall theory. The peak at 130 K was caused by a trap at the energy level 0.22 eV below the conduction band, and the increase below 90 K by the carrier freeze-out. Furthermore, the reduction of impurity concentration in the buried channel turned out to be an effective method of improving the transfer efficiency below 90 K.
Method for optical inspection of nanoscale objects based upon analysis of their defocused images and features of its practical implementation (2013)

A microscopic method to inspect isolated sub 100 nm scale structures made of silicon is presented. This method is based upon an analysis of light intensity distributions at defocused images obtained along the optical axis normal to the sample plane. Experimental measurements of calibrated lines (height 50 nm, length 100 μm, and widths of 40-150 nm in 10 nm steps) on top of a monocrystalline silicon substrate are presented. Library of defocused images of calibrated lines is obtained experimentally and numerically with accordance to experimental setup parameters and measurements conditions. Processing of the measured defocused images and comparison with simulated ones from library allow one to distinguish between objects with a 10 nm change in width. It is shown that influence of optical system aberrations must be taken into account in order to achieve coincidence between simulation and measured results and increase accuracy of line width inspection accuracy. The limits of accuracy for object width measurements using this optical method are discussed.
$Military Medicine of the Future (1954)

$Military Medicine of the Future Lamont Pugh, (MC), USN Lamont Pugh, (MC), USN Surgeon General of the Navy Search for other works by this author on: Oxford Academic Google Scholar The Military Surgeon, Volume 114, Issue 1, January 1954, Pages 31–34, https://doi.org/10.1093/milmed/114.1.31 Published: 01 January 1954
Cardiac Myosin Light Chains (1992)

Journal Article Cardiac Myosin Light Chains Get access Mauro Panteghini, MD Mauro Panteghini, MD First Laboratory of Clinical Pathology, Spedali Civili, Brescia, Italy. Reprint requests to the First Laboratory of Clinical Pathology, Spedali Civili, 25123 Brescia, Italy (Dr Panteghini). Search for other works by this author on: Oxford Academic PubMed Google Scholar Laboratory Medicine, Volume 23, Issue 5, 1 May 1992, Pages 318–322, https://doi.org/10.1093/labmed/23.5.318 Published: 01 May 1992
Talking about Patients: Communication and Continuity of Care (2000)

Continuity of patient care is a tenet of professional nursing practice regardless of setting. Communication between providers about patients is fundamental to continuity. As the role of hospitals in health care is constrained, care is now commonly delivered to patients during an episode of illness by multiple agencies. Continuity of care now assumes full communication between providers about patients' conditions and needs. Research provides evidence about the dynamics of patient care communication: more lean (background and medical) than rich (nursing care and psychosocial) data are communicated; structured, written formats transmit more information than informal channels of communication; and organizational and patient characteristics would appear to affect communication about patients. Knowledge about the communication dynamics of patient care may assist providers in designing strategies to attain the basic goals of continuity of care.
wikiTable: finger driven interaction for collaborative knowledge-building workspaces (2006)

We present an interactive workspace featuring visionbased gesture recognition that allows multiple users to collaborate in the creation of a concept map. The workspace integrates web-based and face-to-face scenarios in knowledge-building activities like brainstorming or problem solving sessions. A wiki serves as the repository for knowledge elements, which are presented to co-located users in form of a concept map visualized on a table. The computer vision module tracks multiple hands and fingers on the table surface using fingertip detection and tracking algorithm. The concept map and the wiki are synchronized in real-time, providing notifications to both co-located and distributed users and allowing a community shared awareness that enhances and enriches the knowledge building experience.
Evaluation of Drill Bit Performance Taking into Account the in Situ State of Stress (1997)

Abstract The present paper describes a correlation between the bit performance and the state of stress acting upon the rock formation located immediately beneath the bottom of the wellbore. Bit performance data from 6 wells drilled offshore Brazil have been collected and analyzed. In order to reduce the empiricism associated with this type of data analysis, a study is being put forward that considers the geomechanical log along the drilled wellbore. The geomechanical log of a given rock formation is composed of its mechanical properties (Young’s modulus, Poisson’s Ratio, unconfined compressive strength, internal friction angle, etc.) as well as formation fluid pressure and in situ total stresses. The paper shows how to use these data to evaluate the stresses at the bottom of the wellbore through a 3D finite element program. Through these stresses it is possible to define an index of plastification ahead of the drill bit, and its performance is rated taking this index into account. Some of the wells that are being analyzed were drilled in deep water locations, and the study shows a great potential for better understanding the reasons for good and bad performances regarding to the penetration rate of the drill bit in a rational manner. Based upon the analysis, a new study for drill bit evaluation will be put forward with the potential for great savings.
Preparation of cereal-like Y V O<sub>4</sub>:Ln<sup>3 +</sup>(Ln = Sm, Eu, Tb, Dy) for high quantum efficiency photoluminescence (2010)

In this work, preparation of cereal-like architectures Y V O(4) and Y V O(4):Ln(3 + ) (Ln = Eu, Sm, Dy, Tb) was initiated using a hydrothermal method. During the formation reaction, Na(3)C(6)H(5)O(7).2H(2)O was used to effectively adjust the concentration of Y(3 + ) species necessary for cereal-like architectures. Phase structure, surface chemistry, morphology, and photoluminescence were characterized by x-ray powder diffraction, Fourier transformed infrared spectra, scanning electron microscopy, transmission electron microscopy, and photoluminescence spectra. All samples crystallize in a tetragonal zircon structure, stably showing a homogeneous cereal-like morphology. This special morphology was constructed by self-assembly of tiny primary particles with a dimension of 31-32 nm. With increasing atomic number of Ln(3 + ), the lattice dimension of the cereal architectures became monotonously enlarged. This cereal-like architecture is proved unique in significantly improving the quantum efficiencies: the internal quantum efficiencies of (5)D(0) for Ln = Eu and (4)F(9/2) for Ln = Dy were 14.6% and 11.4%, respectively, which are all superior over those of the counterparts of nanoparticles reported in the literature. The average lifetime of the (5)D(0) level for Ln = Eu was calculated to be 98 micros, which is longer than that of 50 micros of the (4)F(9/2) level for Ln = Dy. The strong photoluminescence might be the consequence of the effective energy transfer due to the greatly reduced defect centers from this special self-assembly structure.
A closure approximation for liquid-crystalline polymer models based on parametric density estimation (1998)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Charu V. Chaubal, L. Gary Leal; A closure approximation for liquid-crystalline polymer models based on parametric density estimation. J. Rheol. 1 January 1998; 42 (1): 177–201. https://doi.org/10.1122/1.550887 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentThe Society of RheologyJournal of Rheology Search Advanced Search |Citation Search
Driving Force and Logic of Development of Advanced High Strength Steels for Automotive Applications (2013)

Abstract The major scientific and technological advances and breakthroughs of advanced high strength steels (AHSS) were achieved due to the strong demands of automotive industry. The development of AHSS began in the early 1980s with the aim of improving passenger safety and weight‐saving. The present paper presents the driving forces and logic of development of various AHSS for automotive applications since 1980s. The importance of crash performance, weight‐saving, formability, and rigidity are critically reviewed for the development of new steel grades for automotive applications. The logical sequences of the development of dual phase (DP) steel, transformation induced plasticity (TRIP) steels, tempered DP steels, complex phases (CP) steels, Ferrite‐Bainite steels, hot‐stamping technology, twinning induced plasticity (TWIP) steels, Quench and Partitioning (Q&P) steels, Medium Mn steels, and steels–polymer composites are presented.
V2G technology to design a virtual UPFC (2012)

Unified Power Flow Controller (UPFC) is a FACTS device which can fulfil multiple power flow control objectives such as needs of reactive shunt compensation, phase shifting and series compensation. However UPFCs are quite expensive and therefore are not widely used. In this paper the potential of Plug in Hybrid Electric Vehicles (PHEV) in a V2G mode of operation is explained, which gives a low-cost solution for designing a virtual UPFC using PHEV charging station. A third order dynamic battery model is used here to represent the PHEV. Simulations have been carried out and demonstrated that PHEVs have the potential to work as a virtual UPFC to improve power quality.
Holographic contouring by translation (1976)

Holographic interference fringes caused by rigid object motion have been explained as intersections of the object by surfaces in space. These interference surfaces can be visualized as the result of a three-dimensional moiré effect between two sets of the ellipsoids of the holodiagram. The angles and the curvatures of the surfaces vary rapidly in the vicinity of the foci of the ellipsoids. It is graphically explained and experimentally verified how some translations of an object placed at a certain distance from the focal points cause contouring fringes that represent intersections by surfaces that are perpendicular to the line of sight. It is also demonstrated how this angle can be changed during reconstruction by moving the eye away from the hologram plate.
Chicken egg antibodies for immunohistochemical labeling of growth hormone and prolactin in bovine pituitary gland. (1993)

We describe the production of polyclonal chicken antibodies specific for bovine growth hormone (bGH) and prolactin (PRL). Antibodies were generated by immunization of laying hens with recombinant bGH (rbGH), pituitary derived bGH (pbGH), and ovine PRL (oPRL). After the lipoprotein fraction was removed by dextran sulfate precipitation the antibodies were isolated from the egg yolks by ammonium sulfate precipitation. Immunization with rbGH and oPRL generated large amounts of specific antibodies, as revealed by ELISA and Western blot analysis. Antibodies against pbGH showed pronounced crossreactions with oPRL. The antibodies against rbGH and oPRL were well suited for sensitive and specific labeling of the GH- and PRL-synthesizing cells in bovine pituitary glands by immunohistochemistry. In addition, a quick and sensitive procedure for demonstration of both bGH- and PRL-synthesizing cells in a single paraffin section by double immunohistochemistry is presented. The chicken anti-bGH antibodies showed excellent results in combination with rabbit anti-PRL antibodies. The main advantage of avian antibodies in double immunostaining methods is the lack of crossreactions between avian antibodies and mammalian immunoglobulins and receptors which bind to the crystalline fragment of mammalian immunoglobulins (Fc receptors).
A systems-level approach for metabolic engineering of yeast cell factories (2011)

The generation of novel yeast cell factories for production of high-value industrial biotechnological products relies on three metabolic engineering principles: design, construction, and analysis. In the last two decades, strong efforts have been put on developing faster and more efficient strategies and/or technologies for each one of these principles. For design and construction, three major strategies are described in this review: (1) rational metabolic engineering; (2) inverse metabolic engineering; and (3) evolutionary strategies. Independent of the selected strategy, the process of designing yeast strains involves five decision points: (1) choice of product, (2) choice of chassis, (3) identification of target genes, (4) regulating the expression level of target genes, and (5) network balancing of the target genes. At the construction level, several molecular biology tools have been developed through the concept of synthetic biology and applied for the generation of novel, engineered yeast strains. For comprehensive and quantitative analysis of constructed strains, systems biology tools are commonly used and using a multi-omics approach. Key information about the biological system can be revealed, for example, identification of genetic regulatory mechanisms and competitive pathways, thereby assisting the in silico design of metabolic engineering strategies for improving strain performance. Examples on how systems and synthetic biology brought yeast metabolic engineering closer to industrial biotechnology are described in this review, and these examples should demonstrate the potential of a systems-level approach for fast and efficient generation of yeast cell factories.
Transmembrane S1 Mutations in<i>CNGA3</i>from Achromatopsia 2 Patients Cause Loss of Function and Impaired Cellular Trafficking of the Cone CNG Channel (2005)

purpose. Achromatopsia 2, an inherited retinal disorder resulting in attenuation or loss of cone function, is caused by mutations in the α subunit of the cone cyclic nucleotide-gated (CNG) channel gene CNGA3. Examination of mutations that cluster in the first transmembrane segment of the protein may provide insight into its role in CNG channel structure, function, biogenesis, and pathophysiology. methods. The human CNGA3 gene was tagged at the C terminus with green fluorescent protein. Four mutations, Y181C, N182Y, L186F, and C191Y, were expressed in human embryonic kidney cells. Protein expression was evaluated with immunoblot analysis and cellular localization was determined by immunocytochemistry. Channel function was evaluated by patch-clamp electrophysiology. results. All the mutations result in loss of channel function, as determined by the failure of cGMP to activate wild-type currents in excised patches. Full-length mutant proteins were synthesized but retained in the endoplasmic reticulum. Glycerol treatment did not rescue channel function nor did coexpression with CNGB3, a subunit of native hetero-tetrameric cone channels. A control mutant, C191S, exhibited cGMP current activation with significantly reduced cooperativity, suggesting that mutations in the first transmembrane domain alter in inter- or intrasubunit communication. conclusions. The results implicate the first transmembrane segment in both maturation and function of CNG channels. The defects are not reversed with glycerol, a chemical chaperone that rescues channel function in some channelopathies. Molecular analysis of achromatopsia 2 mutations may be useful in evaluating potential therapeutic approaches for treatment of this channelopathy.
A Derivation of Image-Based Rendering for Conventional Three-Dimensional Graphics (1999)

Abstract Image-based rendering generates images from one or more known images without explicit geometric representation of objects. This paper presents a derivation of the pixel transformations for three-dimensional image warping, a popular form of image-based rendering. The derivation is based entirely on traditional three-dimensional graphics terminology, using only 4 × 4 matrices. The transformations are optimized based on the fact that transformations of adjacent pixels share much common computation. Derivatives and frame-to-frame coherence are also discussed.
Design of adaptive fuzzy-neural-network control for DC-DC boost converter (2012)

In this study, an adaptive fuzzy-neural-network control (AFNNC) scheme is designed for the voltage tracking control of a conventional dc-dc boost converter. First, a total sliding-mode control (TSMC) strategy without the reaching pahse in the conventional SMC is developed for enhancing the system robustness during the transient response of the voltage control. In order to alleviate chattering phenomena caused by the sign function in TSMC design and reduce the dependence on detailed system dynamics, it further designs an AFNNC scheme to imitate the TSMC law for the boost converter. In the AFNNC scheme, on-line learning algorithms are derived in the sense of Lyapunov stability theorem and projection algorithm to ensure the stability of the controlled system without the requirement of auxiliary compensated controllers despite the existence of uncertainties. The output of the AFNNC scheme can be easily supplied to the duty cycle of the power switch in the boost converter without strict constraints on control parameters selection in conventional control strategies. In addition, the effectiveness of the proposed AFNNC scheme is verified by numerical simulations, and its advantages are indicated in comparison with the TSMC strategy.
Research of position sensorless control of PMSM based on high frequency signal injection (2008)

The paper introduces a sensorless control method which is called high frequency (HF) injection for salient-pole permanent magnet synchronous motor (PMSM). High frequency signal injection means to inject three phase symmetric constant amplitude voltage into the stator of PMSM. If the rotor has saliency, the current magnetic field of HF voltage signal must be influenced by the modulating function of the salient pole rotor, and then a HF carrier wave relating to the position of the rotor will appear. From these carrier wave signals, the position information of the rotor can be further extracted, and the special position of the rotor can be accordingly decided. The self-detecting process of PMSM rotor position is simulated which proves the effectiveness of this method.
The Prevalence and Identification of Risk Factors for NIDDM in Urban Africans in Cape Town, South Africa (1993)

The prevalence of NIDDM in urban Africans in Cape Town, South Africa, is moderately high, and considerably higher than previous reports from Africa. The association of NIDDM with urbanization has important implications in view of the large-scale urbanization occurring in southern Africa.
High Yield Selective Acylation of Polyamines:  Proton as Protecting Group (2007)

An advance in the selective acylation of polyamines having identical or similar amine functions is reported. While nucleophilicity differences between the various amine functions are slight, the corresponding conjugate acids exhibit pKa values over a significant range. We have used proton as polyamine protecting group: the monoamine resulting from single deprotonation of a polyammonium compound has allowed for high yields of selective acylation.
Novel chimerized IgA CD20 antibodies: Improving neutrophil activation against CD20-positive malignancies (2020)

Current combination therapies elicit high response rates in B cell malignancies, often using CD20 antibodies as the backbone of therapy. However, many patients eventually relapse or develop progressive disease. Therefore, novel CD20 antibodies combining multiple effector mechanisms were generated. To study whether neutrophil-mediated destruction of B cell malignancies can be added to the arsenal of effector mechanisms, we chimerized a panel of five previously described murine CD20 antibodies to the human IgG1, IgA1 and IgA2 isotype. Of this panel, we assessed <i>in vitro</i> antibody-dependent cell-mediated cytotoxicity (ADCC), complement-dependent cytotoxicity (CDC) and direct cell death induction capacity and studied the efficacy in two different <i>in vivo</i> mouse models. IgA antibodies outperformed IgG1 antibodies in neutrophil-mediated killing <i>in vitro</i>, both against CD20-expressing cell lines and primary patient material. In these assays, we observed loss of CD19 with both IgA and IgG antibodies. Therefore, we established a novel method to improve the assessment of B-cell depletion by CD20 antibodies by including CD24 as a stable cell marker. Subsequently, we demonstrated that only IgA antibodies were able to reduce B cell numbers in this context. Additionally, IgA antibodies showed efficacy in both an intraperitoneal tumor model with EL4 cells expressing huCD20 and in an adoptive transfer model with huCD20-expressing B cells. Taken together, we show that IgA, like IgG, can induce ADCC and CDC, but additionally triggers neutrophils to kill (malignant) B cells. We conclude that antibodies of the IgA isotype offer an attractive repertoire of effector mechanisms for the treatment of CD20-expressing malignancies.