gebhart/patrepeval huggingface dataset:
A Review on 3D printing of piezoelectric materials (2018)

This paper presents an overview of 3D Printing methods of Piezoelectric materials [PEM] using various poling techniques, such as corona poling, contact poling, and other poling process, the method of integrating the 3D printing and poling, enables to print any type of sophisticated shaped sensors in single step, several conventional methods require complicated and time-consuming procedures, the 3d printing integrated with poling possess method and material constraints, the steps to minimize the technical challenges are under research.
Elastic Properties of Coal Measure Rocks New South Wales (1986)

AbstractThis laboratory study determined the densities and ultrasonic velocities (compressional and shear) of a large number of samples of NSW Permian bituminous coal, and enclosing roof and floor rocks. The tabulated results were obtained for three important Sydney Basin coalfield seams: the Wongawilli (coking), Katoomba (steaming) and Lithgow (steaming). The dry bulk densities range from 1.34 to 1.45 t m-3 which is relatively high for bituminous coal (1.1-1.5 t m-3 usual range), but low in comparison to adjacent sandstones, mudstones and shales (2.31 t -3). Compressional wave velocities of the coal samples perpendicular and parallel to the bedding were approximately 2000 and 2300 m s-1 respectively, except for the Wongawilli which averages 1740 and 1850 m s-1. Shear wave velocities perpendicular and parallel to the bedding average, about 960 and 1080 m s-1 respectively, with the Wongawilli again giving lower values of the order of 800 m s-2. The ultrasonic coal velocities are low compared to the sedimentary rocks (VP ~3500 m s-1). Velocity anisotropy for coal was marked with velocity differences up to 36%. The dynamic elastic moduli ranged from 1000 to 5000 MPa and show considerable variability. Poisson's ratio for coal spans a narrow range of 0.34 to 0.37 which is high compared to most rocks (0.25). The application of this laboratory data to in situ conditions needs cognizance of the following factors: degree of water saturation, coal friability, local jointing and sediment partings, and confining pressure.Keywordsanisotropydensitydynamic elastic constantsPermian coalultrasonic velocity
A model for the effect of aggregation on short term load forecasting (2014)

In this work, we propose a simple empirical scaling law that describes load forecasting accuracy at different levels of aggregation. We show that for the short term forecasting problem, aggregating more users will improve the relative forecasting performance up to a point. Beyond this point, no more improvement in relative performance can be obtained.
Synthesis of cyclic and acyclic nucleoside analogues having a thiophene or dihydrothiophene ring fused to the <i>d</i> side of an uracil (1995)

Abstract Synthesis of cyclic and acyclic nucleosides was achieved by alkylation of various new aglycones following the Vorbrüggen and Niedballa's procedure [6]. The analytical results allowed us to conclude that the alkylation occured on N1 site and led to the β anomeric form for the cyclic nucleosides.
Fluorescence of riboflavin and flavin-adenine dinucleotide (1950)

Research Article| June 01 1950 Fluorescence of riboflavin and flavin-adenine dinucleotide G. Weber G. Weber 1Biochemical Laboratory, University of Cambridge Search for other works by this author on: This Site PubMed Google Scholar Biochem J (1950) 47 (1): 114–121. https://doi.org/10.1042/bj0470114 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation G. Weber; Fluorescence of riboflavin and flavin-adenine dinucleotide. Biochem J 1 June 1950; 47 (1): 114–121. doi: https://doi.org/10.1042/bj0470114 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 ContentAll JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1950 CAMBRIDGE UNIVERSITY PRESS1950 Article PDF first page preview Close Modal You do not currently have access to this content.
Mining Frequent Patterns in Data Streams at Multiple Time Granularities (2002)

Although frequent-pattern mining has been widely studied and used, it is challenging to extend it to data streams. Compared to mining from a static transaction data set, the streaming case has far more information to track and far greater complexity to manage. Infrequent items can become frequent later on and hence cannot be ignored. The storage structure needs to be dynamically adjusted to reflect the evolution of itemset frequencies over time.
Compact Hyperplane Hashing with Bilinear Functions (2012)

Hyperplane hashing aims at rapidly searching nearest points to a hyperplane, and has shown practical impact in scaling up active learning with SVMs. Unfortunately, the existing randomized methods need long hash codes to achieve reasonable search accuracy and thus suffer from reduced search speed and large memory overhead. To this end, this paper proposes a novel hyperplane hashing technique which yields compact hash codes. The key idea is the bilinear form of the proposed hash functions, which leads to higher collision probability than the existing hyperplane hash functions when using random projections. To further increase the performance, we propose a learning based framework in which the bilinear functions are directly learned from the data. This results in short yet discriminative codes, and also boosts the search performance over the random projection based solutions. Large-scale active learning experiments carried out on two datasets with up to one million samples demonstrate the overall superiority of the proposed approach.
Submarine Cable Telegraphy (1922)

The history of the development of the subject is first outlined, and methods of operation of cables are described. The technical side is introduced with a statement of the various conditions whi h limit operation of cables, and a general method of analysis is developed, based upon an extension of ordinary alternating-current theory. The theory is made use of to analyze the action of cable types and of apparatus which at this time can be regarded as standard. The fundamental theory of the method of analysis, with information on the calculation of transients in electrical circuits, is given in the Appendix.
Alternative custodians for congestion control in delay tolerant networks (2006)

We approach the problem of handling storage congestion at store-and-forward (DTN) nodes by migrating stored data to neighbors. The proposed solution includes a set of algorithms to determine which messages should be migrated to which neighbors and when. It also includes an extension to the DTN custody transfer mechanism enabling a "pull" form of custody transfer where a custodian may request custody of a message from another custodian. This approach allows us to decouple the problem of storage allocation among a relatively proximal group of storage nodes from the overall problem of path selection across a larger network. Doing so admits the possibility of localized routing loops for some messages which has been shown to be desirable for avoiding some head-of-line blocking problems. We select eligible storage neighbors using a function of available storage and incident link characteristics. Using simulation, we evaluate this approach and show how migrating custodian storage in this fashion can improve message completion rate by as much as 48% for some storage-constrained DTN networks.
Alteration of peripheral markers of copper homeostasis in Alzheimer's disease patients: implications in aetiology and therapy. (2007)

Alzheimer's disease represents a growing health problem because of the ongoing increase in life expectancy. Therefore understanding the molecular alterations responsible for neurodegeneration has become imperative in order to develop efficient strategies for the therapy. Mounting evidence suggests that the essential metal ion copper is intriguingly connected with the established molecular markers of Alzheimer's disease and that copper homeostasis is disturbed in affected individuals, leading to oxidative stress and neurodegeneration. This review summarizes the mechanisms of copper trafficking in cells and describes the relationship between copper, the amyloid precursor protein and beta-amyloid. Since one of the main goals of the research on Alzheimer's disease is the identification of blood markers to aid diagnosis and monitor the effects of therapeutic approaches, the results obtained in a series of studies on copper in the blood of Alzheimer's disease patients recently carried out in our laboratories are described.
Self-sizing network operation systems in ATM networks (2002)

The asynchronous transfer mode (ATM) is a key technology for broadband integrated services digital networks (B-ISDNs), which require high speed transmission. We propose a "self-sizing network operation". This is a traffic engineering, management and operation concept for ATM networks. This concept allows networks to be rapidly operated and flexibly re-dimensioned by the system. We overview the functions of this system. Next, we present the virtual path (VP) bandwidth control function and the network element (NE) interface, which are Step 1 functions in the "self-sizing network operation". Their functions can automatically adjust the VP bandwidth. We show their effectiveness; the VP bandwidth can be reduced by 30% or 40%. To implement the operation system, we considered the actual operation time. This may be restricted for operation control. Then, we evaluated the performance of the Step 1 function. In this evaluation, we measured the basic CMIP performance, and estimated the time necessary for actual operation based on these measurements. A major portion of the total operation time is the time necessary for collecting data. This increases by the cube of the total number of virtual channel handlers (VCHs) with every additional VCH. If we use this system, we must consider its operation cycle and effectiveness. However, fortunately the time necessary for operation is short enough to operate about 50 VCHs in a network which cover all of Japan.
Clinical longitudinal standards for height, weight, height velocity, weight velocity, and stages of puberty. (1976)

New charts for height, weight, height velocity, and weight velocity are presented for clinical (as opposed to population survey) use. They are based on longitudinal-type growth curves, using the same data as in the British 1965 growth standards. In the velocity standards centiles are given for children who are early- and late-maturing as well as for those who mature at the average age (thus extending the use of the previous charts). Limits of normality for the age of occurrence of the adolescent growth spurt are given and also for the successive stages of penis, testes, and pubic hair development in boys, and for stages of breast and pubic hair development in girls.
Celgosivir, an alpha-glucosidase I inhibitor for the potential treatment of HCV infection. (2009)

Celgosivir, in development by MIGENIX Inc for the treatment of HCV infection, is an oral prodrug of the natural product castanospermine that inhibits alpha-glucosidase I, an enzyme that plays a critical role in viral maturation by initiating the processing of the N-linked oligosaccharides of viral envelope glycoproteins. Celgosivir is well absorbed in vitro and in vivo, and is rapidly converted to castanospermine. Celgosivir has a novel mechanism of action (ie, host-directed glycosylation), and demonstrates broad antiviral activity in vitro. The agent is not efficient as a monotherapy for the treatment of HCV, but has demonstrated a synergistic effect in combination with the current standard of care, PEGylated IFNalpha2b plus ribavirin, both in vitro and in phase II clinical trials. At the time of publication, a phase II trial was underway to investigate the safety, tolerability and antiviral effect of celgosivir in combination with PEGylated IFNalpha2b plus ribavirin for up to 1 year in patients with chronic HCV infection. Celgosivir may prove to be a valuable component for combination therapy and may help to prevent the apparition of drug resistance. Long-term toxicity studies are necessary to confirm the safety of this novel drug in humans.
Optical and electrical properties of nanostructured metal-silicon-metal photodetectors (2002)

We report an experimental evaluation of the performance of silicon (Si) photodetectors incorporating one-dimensional (1-D) arrays of rectangular and triangular-shaped nanoscale structures within their active regions. A significant (/spl sim/2/spl times/) enhancement in photoresponse is achieved in these devices across the 400- to 900-nm spectral region due to the modification of optical absorption properties that results from structuring the Si surface on physical optics scales smaller than the wavelength, which both reduces the reflectivity and concentrates the optical field closer to the surface. Both patterned (triangular and rectangular lineshape) and planar Ni-Si back-to-back Schottky barrier metal-semiconductor-metal photodetectors on n-type (/spl sim/5/spl times/10/sup 14/ cm/sup -3/) bulk Si were studied. 1-D /spl sim/50-250-nm linewidth, /spl sim/1000-nm depth, grating structures were fabricated by a combination of interferometric lithography and dry etching. The nanoscale grating structures significantly modify the absorption, reflectance, and transmission characteristics of the semiconductor: air interface. These changes result in improved electrical response leading to increased external quantum efficiency (from /spl sim/44% for planar to /spl sim/81% for structured devices at /spl lambda/=700 nm). In addition, a faster time constant (/spl sim/1700 ps for planar to /spl sim/600 ps for structured at /spl lambda/=900 nm) is achieved by increasing the absorption near the surface where the carriers can be rapidly collected. Experimental quantum efficiency and photocurrents results are compared with a theoretical photocurrent model based on rigorous coupled-wave analysis of nanostructured gratings.
A matched filter design by charge-domain operations (2005)

This paper describes a novel matched filter (MF) design and its basic operations. The MF is based on the charge-domain operations that have a very simple structure compared to ordinary designs. To investigate the charge transfer characteristics and operations of correlator circuits that compose the MF, prototype designs are made by standard CMOS and fabricated by MOSIS 1.5 u, double overlapping poly, and double metal technology. The power consumption of the fabricated design was 7.0 pJ/Sample/tap. This value should be 1/10 of that of the current state of the art switched capacitor MF design, given that the same process technology was applied to both. Circuit area was 0.151 mm2/tap and this is also 1/2 of that of switched capacitor designs of the same technology. The correlator circuit of the new MF is composed of several steps of charge transfer operations. Hence, no special fabrication process such as those used for CCD imager is required. The detailed structure and operation of the correlator is explained.
Evidence for Water Rings in the Hexahydrated Sulfate Dianion from IR Spectroscopy (2007)

Whereas isolated SO42- is unstable, hydrated clusters of this dianion have been formed and investigated using a variety of different methods. Several structures of [SO4(H2O)6]2- have been proposed that account for its high stability in the gas phase. Zhou et al. [J. Chem. Phys. 2006, 125, 111102] recently reported infrared spectra of [SO4(H2O)n]2- in the 540−1850 cm-1 region and assigned the spectrum of the hexahydrated ion to a Td symmetry structure in which all six water molecules donate two hydrogen bonds to the sulfate core. Here, an infrared spectrum of this ion in the hydrogen stretch region (2620−3840 cm-1) and B3LYP/AUG-cc-pVDZ calculations indicate that a significant population of these ions correspond to lower symmetry structures containing water rings in which each water molecule donates hydrogen bonds to both the sulfate dianion and a neighboring water molecule. These calculations indicate that inter-water hydrogen bonds are slightly favored over additional solvation of the dianion core. These results demonstrate that the low- and high-frequency infrared spectra of this ion provide complementary information, and the combination can greatly enhance structural elucidation of these hydrated ions.
An integrated approach to computer-based decision support at the point of care. (2007)

Information needs that arise when clinicians use clinical information systems often go unresolved, forcing clinicians to defer decisions or make them with incomplete knowledge. My research characterizes these needs in order to build information systems that can help clinicians get timely answers to their questions. My colleagues and I have developed "Infobuttons", which are links between clinical information systems and on-line knowledge resources, and have developed an "Infobutton Manager" (IM) that attempts to determine the information need based on the context of what the user is doing. The IM presents users with a set of questions, each of which is a link to an online information resource that will answer the question. The Infobutton Manager has been successfully deployed in five systems at four institutions and provides users with over 1,000 accesses to on-line health information each month, with a positive impact on patient care.
Coherent A<sub>1</sub>phonons in Te studied with tailored femtosecond pulses (2007)

We tailor the shape and phase of the pump-pulse spectrum in order to study coherent lattice dynamics in tellurium. Employing coherent control by splitting the pump pulse into a two-pulse sequence, we show that the oscillations due to A(1) coherent phonons can be cancelled but not enhanced as compared to single-pulse excitation of the same energy. We further demonstrate that a crucial factor for coherent phonon generation seems to be the bandwidth of the pulse spectrum. We observe that the coherent amplitude for long pump pulses decreases exponentially with pulse duration for both Gaussian and rectangular pulses. Finally, by varying the pulse chirp, we show that the coherent amplitude is independent of the chirp sign while the oscillation lifetime is slightly dependent on the chirp sign.
Protease‐antiprotease imbalance in the pathogensis of emphysema and chronic bronchial injury: A potential target for drug development (1987)

Abstract The hypothesis that emphysema might be caused by an imbalance between proteases and antiproteases in the lungs arose shortly after the discovery of the premature and familial occurrence of emphysema in persons with homozygous alpha‐1‐protease inhibitor deficiency. Experimental evidence for support of this hypothesis has come from experimental induction of emphysema in animals by proteases. The ability of proteases to induce emphysema is proportional to their elastolytic potency. The importance of elastin degradation as a cause of the development of emphysema has also come from experiments of genetic models in which elastin crosslinking is prevented. The neutrophilis believed to be the most likely source of elastase in the induction of the emphysema of smokers. Alpha‐1‐protease inhibitor is the most important antiprotease. Alpha‐1‐antiprotease is susceptible to oxidative inactivation by cigarette smoke or by endogenous oxidants. Oxidants from cigarette smoke may also interfere with proper elastin repair. Serine proteases have also been shown to produce secretory cell metaplasia in the central intrapulmonary bronchi of hamsters. The discovery of secretory leukoprotease inhibitor in sputum and its production by bronchial secretory cells raises the possibility that secretory cell metaplasia in humans may also be caused by an imbalance between proteases and antiproteases. Although evidence for the validity of the proteaselantiprotease hypothesis of the phogenesis of emphysema and chronic bronchitis in human smokers is still indirect, the development of supplemental antiprotease therapy seems rational for the prevention of progression of these diseases in persons who are unable to stop smoking.
Virtual Network Functions Routing and Placement for Edge Cloud Latency Minimization (2018)

As a new way to design, deploy, and manage network services, network functions virtualization (NFV) decouples the network functions, from one or more physical network infrastructures and black boxes so they can run in software. It therefore comes as no surprise that NFV originated from service providers, who were looking to improve the deployment of new network services to support their revenue and growth objectives. Within the NFV ecosystem, high availability, and low latency are one of the key quality of service (QoS) benefits that service providers can expect from the 5G Cloud and the NFV networks to make delay-critical services such as remote surgery a reality. Therefore, network services should be placed, chained, and routed through the network considering users/tenants stringent QoS and service-level agreement requirements. To this end, routing and placement optimization plays a major role in improving network performance and the overall network cost. In this paper, we study the problem of virtual network functions (VNFs) placement and routing across the physical hosts to minimize overall latency defined as the queuing delay within the edge clouds and in network links. In that respect, this paper takes a holistic view by considering not only VNFs chaining and placement problem but also considering the flows routing aspect since these two problems are inter-related and have a major impact on network latency.
Radioimmunoassay for Rat B-Type Natriuretic Peptide (BNP-45) (1993)

Rat BNP-45 is the main circulating form of BNP in rat plasma. To understand the role of BNP in physiological and pathophysiological conditions, a specific radioimmunoassay (RIA) for the quantitative determination of the peptide in plasma and tissues is necessary. An assay using rBNP-45 as the standard in conjunction with antisera directed against this peptide has not been described in the literature, though some investigators have reported values ranging from 0.73-2.0 pmol/L using either BNP-26 or BNP-32 as the standard peptide. Unfortunately, these forms of BNP do not exist in rat plasma. In our studies, we have developed a specific RIA for rBNP-45 using rBNP-45 as the standard peptide and Tyro-rBNP-45 as the radioligand. We have used two specific antisera for assay purposes; one against rBNP-45, and the second to a peptide composed of the first 20 amino acids of rBNP-45 (rBNP[1-20]). The recovery of various amounts of rBNP-45 added to control plasma was 50-80% depending on the method of extraction and purification. The interassay and intraassay coefficients of variation were 12% and 6% respectively. Values obtained were similar for blood sampled by either cardiac puncture, decapitation, or aortic puncture. The method was used to measure rBNP-45 in the plasma of normal (WKY) and Spontaneously Hypertensive (SHR) rats. The values obtained were 5.46 +/- 0.43 and 19.6 +/- 2.36 pmol/L respectively. The rat atrial natriuretic peptide (ANP[99-126]) values in the same extracts were 23.2 +/- 0.45 and 51.6 +/- 3.16 pmol/L.
The simple book : an introduction to management of TCP/IP-based internets (1991)

This text provides a straightforward view of the important topics in contemporary inter-networking - network management and the Simple Network Management Protocol (SNMP).