gebhart/patrepeval huggingface dataset:
From red cells to soft lubrication, an experimental study of lift generation inside a compressible porous layer (2017)

It is a new concept for porous media flow that a hydrodynamic lifting force is generated inside a highly compressible porous layer as a planing surface glides over it. The concept originated from the observation of the pop-out phenomena of red blood cells over the endothelial glycocalyx layer (EGL) lining the inner surface of our blood vessels (Feng & Weinbaum, J. Fluid Mech. , vol. 422, 2000, pp. 282–317). In the current paper, we report an experimental study to examine this concept. A novel testing set-up was developed that consists of a running conveyer belt covered with a soft porous sheet, and a fully instrumented upper planar board, i.e. planing surface. The generation of pore pressure was observed and captured by pressure transducers when the planing surface glides over the porous sheet. Its distribution strongly depends on the relative velocity between the planing surface and the running belt, the mechanical and transport properties of the porous sheet as well as the compression ratios at the leading and trailing edges. The relative contribution of the transiently trapped air to the total lift was evaluated by comparing the pore pressure to the total lifting pressure measured by a load cell mounted between two adjacent pressure transducers. For a typical running condition with a polyester porous material ( $k=h_{2}/h_{1}=5$ , $\unicode[STIX]{x1D706}=h_{2}/h_{0}=1$ , $U=3.8~\text{m}~\text{s}^{-1}$ , where $h_{2}$ , $h_{1}$ , are the porous layer thickness at the leading and trailing edges, respectively; $h_{0}$ is the un-deformed porous layer thickness; and $U$ is the velocity of the running belt), over 68 % of the local lift is generated by the pore pressure. The results conclusively verified the validity of lift generation in a highly compressible porous layer as a planing surface glides over it. This study provides the foundation for the application of highly compressible porous media for soft lubrication with minimal frictional losses. It also sheds some light on the biophysics study of the EGL.
Purification of an elastin‐like fusion protein by microfiltration (2006)

This article describes a simple and potentially scalable microfiltration method for purification of recombinant proteins. This method is based on the fact that when an elastin-like polypeptide (ELP) is fused to a target protein, the inverse phase transition behavior of the ELP tag is imparted to the fusion protein. Triggering the phase transition of a solution of the ELP fusion protein by an increase in temperature, or isothermally by an increase in salt concentration, results in the formation of micron-sized aggregates of the ELP fusion protein. In this article, it is shown that these aggregates are efficiently retained by a microfiltration membrane, while contaminating E. coli proteins passed through the membrane upon washing. Upon reversing the phase transition by flow of Milli-Q water, soluble, pure, and functionally active protein is eluted from the membrane. Proof-of principle of this approach was demonstrated by purifying a fusion of thioredoxin with ELP (Trx-ELP) with greater than 95% recovery of protein and with greater than 95% purity (as estimated from SDS-PAGE gels). The simplicity of this method is demonstrated for laboratory scale purification by purifying Trx-ELP from cell lysate using a syringe and a disposable microfiltration cartridge. The potential scalability of this purification as an automated, continuous industrial-scale process is also demonstrated using a continuous stirred cell equipped with a microfiltration membrane.
Review of research on the mechanical properties of the human tooth (2014)

'Bronze teeth' reflect the mechanical properties of natural teeth to a certain extent. Their mechanical properties resemble those of a tough metal, and the gradient of these properties lies in the direction from outside to inside. These attributes confer human teeth with effective mastication ability. Understanding the various mechanical properties of human teeth and dental materials is the basis for the development of restorative materials. In this study, the elastic properties, dynamic mechanical properties (visco-elasticity) and fracture mechanical properties of enamel and dentin were reviewed to provide a more thorough understanding of the mechanical properties of human teeth.
Ultimate limits for matrix addressing of RMS-responding liquid-crystal displays (1979)

A new general analysis of the addressing of an rms-responding matrix for uniform display of unrestricted patterns reveals the ultimate performance limit for any conceivable driving waveforms. The Alt and Pleshko limit for multiplexing can be exceeded whenever the number of matrix rows is not the square of an integer by appropriate choice of more general waveforms. A practical scheme for a two-line matrix yields a 24-percent improvement in voltage selection ratio over multiplexed addressing.
An Analysis of the Relationships Among Obesity, Plasma Insulin, and Hepatic Lipogenic Enzymes in "Viable Yellow Obese" Mice (A<sup>vy</sup>/a) (1976)

<P>Abstract copyright UK Data Service and data collection copyright owner.</P>
Fault Detection and Diagnosis for Gas Turbines Based on a Kernelized Information Entropy Model (2014)

Gas turbines are considered as one kind of the most important devices in power engineering and have been widely used in power generation, airplanes, and naval ships and also in oil drilling platforms. However, they are monitored without man on duty in the most cases. It is highly desirable to develop techniques and systems to remotely monitor their conditions and analyze their faults. In this work, we introduce a remote system for online condition monitoring and fault diagnosis of gas turbine on offshore oil well drilling platforms based on a kernelized information entropy model. Shannon information entropy is generalized for measuring the uniformity of exhaust temperatures, which reflect the overall states of the gas paths of gas turbine. In addition, we also extend the entropy to compute the information quantity of features in kernel spaces, which help to select the informative features for a certain recognition task. Finally, we introduce the information entropy based decision tree algorithm to extract rules from fault samples. The experiments on some real-world data show the effectiveness of the proposed algorithms.
Apparatus to secure core samples from the ocean-bottom (1936)

Research Article| May 31, 1936 Apparatus to secure core samples from the ocean-bottom CHARLES SNOWDEN PIGGOT CHARLES SNOWDEN PIGGOT Search for other works by this author on: GSW Google Scholar Author and Article Information CHARLES SNOWDEN PIGGOT Publisher: Geological Society of America Received: 24 Mar 1936 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 1936 Geological Society of America GSA Bulletin (1936) 47 (5): 675. https://doi.org/10.1130/GSAB-47-675 Article history Received: 24 Mar 1936 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation CHARLES SNOWDEN PIGGOT; Apparatus to secure core samples from the ocean-bottom. GSA Bulletin 1936;; 47 (5): 675–664. doi: https://doi.org/10.1130/GSAB-47-675 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract INTRODUCTIONWhile engaged on the determination of the radium content of the samples of ocean-bottom taken by the ship Carnegie on her last (1932) cruise, the author became aware of the desirability of core samples of this material rather than the usual “snapper” samples then available. Diagrams of a suggested apparatus were discussed with several oceanographic investigators, but no money was available for development. Early in 1933, A. C. Lane brought the subject to the attention of the Geological Society of America, and in October of that year the Council, on the recommendation of the Committee on Projects, approved a grant for a project, of which this report is the conclusion.The requirements of an apparatus designed to operate at the end of a line under a mile or more of water are varied and conflicting. Deep soundings are difficult to make at best, and skin-friction is such that a . . . This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Newly-recognised Continental Fragments Rifted from the West Australian Margin (2013)

The southwest Australian margin formed at the nexus of rifting and breakup between India, Australia and Antarctica in the Early Cretaceous. Studying the basin evolution along this margin has been hampered by a lack of data from the offshore Perth Abyssal Plain (PAP), and from the conjugate Greater Indian margin, which was highly deformed during collision with Eurasia. Here, we present new data (magnetic anomaly profile data, swath bathymetry, and dredge samples) constraining the evolution of the PAP, collected during voyage ss2011/v06 of the RV Southern Surveyor in late 2011. The Batavia Knoll (BK) and Gulden Draak Knoll (GDK) are two prominent, previously unsampled bathymetric features located >1600 km offshore Australia that have been assumed to be igneous features. Successful dredges on the western flanks of both knolls recovered continental basement rocks, revealing that both knolls are microcontinents. We use quantitative analysis of shiptrack magnetic profiles combined with satellite gravity anomalies to estimate the extent and spatial variation in thickness of the continental crust. Sediment thickness estimates are made using depths to magnetic sources for shiptrack profiles. The geophysical data provide evidence for basin structures within the knolls of a similar scale to those imaged within other fragments of stretched continental crust such as the Naturaliste Plateau. Interpretation of previously unidentified M-series anomalies in the Perth Abyssal Plain, combined with dredge data, support a reconstruction model where the BK and GDKs are microcontinents that initially rifted with Greater India during breakup with Australia at ~130 Ma. As seafloor spreading ceased in the PAP at about 105–100 Ma, a westward ridge jump led to the rifting of the BK and GDK from Greater India.
Power compensation system for partially shaded PV array using electric double layer capacitors (2003)

In this paper, the power compensation and control system for the partially shaded photovoltaic (PV) array is presented. The proposed system utilizes electric double layer capacitors (EDLCs), which has some advantages, e.g. the high density of output power, the long lifetime, compared with other energy storage devices. This system is constructed by the simple combination of EDLCs-bank and a relay. Comparing with the prevalent measures, the proposed system can realize more efficient usage of generation power from PV array. The feasibility of the system is investigated and verified from some simulation results.
Managing infection in the revision total hip replacement patient. (1993)

Deep infection is one of the most devastating complications in total hip replacement. This dreaded complication is presented in considerable detail with special emphasis on prevention, diagnosis, and various methods of surgical and antibiotic treatment. Basic fundamentals of antibiotic therapy are reviewed. In addition, guidelines are given for the indications of surgical intervention, the type and staging of operative procedures, with detailed techniques of the various operative procedures used to treat the infected total hip implant patient.
Ordering induced direct-indirect transformation in unstrained GaxIn1−xP for 0.76≤x≤0.78 (2009)

Ga x In 1 − x P alloys grown by metalorganic vapor phase epitaxy (MOVPE) are known to exhibit spontaneous long-range ordering that results in a modification of the alloy electronic band structure. Using time resolved and time integrated photoluminescence studies at 9 K, we demonstrate that the change in alloy ordering in GaxIn1−xP alloys can transform the conduction to valence band optical transition from direct to indirect for a given Ga concentration. This finding may enable sequential growth of alternate layers of high bandgap direct and indirect semiconductor alloys with similar lattice constants, opening various possibilities for device applications.
Co-transport of H+/Cl– by a synthetic prodigiosin mimic (2005)

An amidopyrrole with appended imidazole group can bind and co-transport H+/Cl- across vesicle membranes much more effectively than an analogue with an appended pyridyl group.
Hepatic glucose sensing is required to preserve β cell glucose competence (2013)

Liver glucose metabolism plays a central role in glucose homeostasis and may also regulate feeding and energy expenditure. Here we assessed the impact of glucose transporter 2 (Glut2) gene inactivation in adult mouse liver (LG2KO mice). Loss of Glut2 suppressed hepatic glucose uptake but not glucose output. In the fasted state, expression of carbohydrate-responsive element-binding protein (ChREBP) and its glycolytic and lipogenic target genes was abnormally elevated. Feeding, energy expenditure, and insulin sensitivity were identical in LG2KO and control mice. Glucose tolerance was initially normal after Glut2 inactivation, but LG2KO mice exhibited progressive impairment of glucose-stimulated insulin secretion even though β cell mass and insulin content remained normal. Liver transcript profiling revealed a coordinated downregulation of cholesterol biosynthesis genes in LG2KO mice that was associated with reduced hepatic cholesterol in fasted mice and reduced bile acids (BAs) in feces, with a similar trend in plasma. We showed that chronic BAs or farnesoid X receptor (FXR) agonist treatment of primary islets increases glucose-stimulated insulin secretion, an effect not seen in islets from Fxr(-/-) mice. Collectively, our data show that glucose sensing by the liver controls β cell glucose competence and suggest BAs as a potential mechanistic link.
A Dynamic Model of the Effect of Online Communications on Firm Sales (2011)

Interpersonal communications have long been recognized as an influential source of information for consumers. Internet-based media have facilitated information exchange among firms and consumers, as well as observability and measurement of such exchanges. However, much of the research addressing online communication focuses on ratings collected from online forums. In this paper, we look beyond ratings to a more comprehensive view of online communications. We consider the sales effect of the volume of positive, negative, and neutral online communications captured by Web crawler technology and classified by automated sentiment analysis. Our modeling approach captures two key features of our data, dynamics and endogeneity. In terms of dynamics, we model daily measures of online communications about a firm and its products as contributing to a latent demand-generating stock variable. To account for the endogeneity, we extend the latent instrumental variable technique to account for dynamic endogenous regressors. Our results demonstrate a significant effect of positive, negative, and neutral online communications on daily sales performance. Failure to account for endogeneity results in a severe attenuation of the estimated effects. From a managerial perspective, we demonstrate the importance of accounting for communication valence as well as the impact of shocks to positive, negative, and neutral online communications.
The Nramp1 Protein and Its Role in Resistance to Infection and Macrophage Function (1999)

Susceptibility to infectious diseases is under genetic control in humans. Animal models provide an ideal tool to study the genetic component of susceptibility and to identify candidate genes that can then be tested for association or linkage studies in human populations from endemic areas of disease. The Nramp1 gene was isolated by positional cloning the host resistance locus Bcg/Ity/Lsh, and mutations at this locus impair the resistance of mice to infections with intracellular parasites, such as Salmonella, Leishmania, and Mycobacterium. Allelic variants at the human Nramp1 homologue have recently been found to be associated with susceptibility to tuberculosis and leprosy in humans. The Nramp1 protein is an integral membrane protein expressed exclusively in the lysosomal compartment of monocytes and macrophages. After phagocytosis, Nramp1 is targeted to the membrane of the microbe-containing phagosome, where it may modify the intraphagosomal milieu to affect microbial replication. Although the biochemical mechanism of action of Nramp1 at that site remains unknown, Nramp homologues have been identified in many other animal species and actually define a protein family conserved from bacteria to humans. Some of these homologues have been shown to be divalent cation transporters. Recently, a second member of the mammalian Nramp family, Nramp2, was discovered and shown to be mutated in animal models of iron deficiency. The Nramp2 protein was subsequently shown to be the major transferrin-independent iron uptake system of the intestine. Together, these results suggest that Nramp1 may control intracellular microbial replication by actively removing iron or other divalent cations from the phagosomal space.
Structural And Magnetic Properties Of Glassy Phosphates With Nasicon-Like Structure (2006)

Abstract not Available.
New N-alkyl derivatives of amphotericin B. Synthesis and biological properties. (1991)

The effectiveness of sulbactam/cefoperazone (SBT/CPZ) on severe infections associated with hematological diseases was evaluated in a nation-wide multicenter clinical study. SBT/CPZ (4-6 g/day), a 1:1 combination of SBT and CPZ, was given intravenously to 437 patients with hematological disorders. The underlying diseases included acute nonlymphocytic leukemia, acute lymphocytic leukemia, malignant lymphoma, multiple myeloma, myelodysplastic syndrome and others. Thus, 94.3% of the patients had hematological malignancies. The complicating infections included sepsis in 41 cases; sepsis suspected in 205; pneumonia in 47; urinary tract infection in 15; fever of unknown origin in 59; and others in 70. Clinical efficacies of SBT/CPZ were as follows; markedly effective, 83 cases; effective, 170; fairly effective, 59; and ineffective, 110. The efficacy rate (markedly effective plus effective) was 60.0% as a whole. The efficacy rate of SBT/CPZ in sepsis and suspected cases, which accounted for 56.3% of the infections, was 59%. Mild side effects such as skin rash were observed in 15 patients (3.1%). As for abnormal laboratory test results, transient increases in GOT, GPT, A1-P, LDH, etc. were observed in 42 patients (8.6%). Therefore, SBT/CPZ is considered to be a useful drug in empiric therapy for severe infections associated with hematological diseases.
A fast and robust method for web page template detection and removal (2006)

The widespread use of templates on the Web is considered harmful for two main reasons. Not only do they compromise the relevance judgment of many web IR and web mining methods such as clustering and classification, but they also negatively impact the performance and resource usage of tools that process web pages. In this paper we present a new method that efficiently and accurately removes templates found in collections of web pages. Our method works in two steps. First, the costly process of template detection is performed over a small set of sample pages. Then, the derived template is removed from the remaining pages in the collection. This leads to substantial performance gains when compared to previous approaches that combine template detection and removal. We show, through an experimental evaluation, that our approach is effective for identifying terms occurring in templates - obtaining F-measure values around 0.9, and that it also boosts the accuracy of web page clustering and classification methods.
Transformative Evolution of Organolead Triiodide Perovskite Thin Films from Strong Room-Temperature Solid–Gas Interaction between HPbI<sub>3</sub>-CH<sub>3</sub>NH<sub>2</sub> Precursor Pair (2016)

We demonstrate the feasibility of a nonsalt-based precursor pair--inorganic HPbI3 solid and organic CH3NH2 gas--for the deposition of uniform CH3NH3PbI3 perovskite thin films. The strong room-temperature solid-gas interaction between HPbI3 and CH3NH2 induces transformative evolution of ultrasmooth, full-coverage perovskite thin films at a rapid rate (in seconds) from nominally processed rough, partial-coverage HPbI3 thin films. The chemical origin of this behavior is elucidated via in situ experiments. Perovskite solar cells, fabricated using MAPbI3 thin films thus deposited, deliver power conversion efficiencies up to 18.2%, attesting to the high quality of the perovskite thin films deposited using this transformative process.
Molecular and Supramolecular Networks on Surfaces: From Two‐Dimensional Crystal Engineering to Reactivity (2009)

The invention of the scanning tunneling microscope has led to the visualization of molecules in real space on atomically flat conductive substrates. This has boosted research into supramolecular chemistry on surfaces. In this Review, we highlight recent developments in the design and functionality of supramolecular surface patterns, with special attention paid to those networks which are chiral or contain a high degree of porosity as well as to the reactivity, which is one of the most important recent developments in supramolecular surface chemistry.
Research on design of overalls energy efficiency assessment system for high energy consumption enterprises (2009)

In order to optimize the allocation of energy resources, reduce enterprises’ energy consumption and achieve the goals of energy conservation and emission reduction, overalls energy efficiency assessment indicator structure and assessment method which are fit for the high energy consumption industry are proposed, a fuzzy Petri net based energy consumption modeling method is adopted and an energy efficiency assessment system is designed for high energy consumption enterprises to simulate the dynamic behaviors of energy use and consumption during the production process. This system has the function of data acquisition, statistical analysis and prediction, which makes it universal in the high energy consumption industry. During the production process of ion-exchange membrane caustic soda, this system is applied to the process from liquid caustic soda to solid alkali, and its feasibility is shown.
Design of a BIST RAM with row/column pattern sensitive fault detection capability (2003)

A novel fault model is developed for random-access memories for a class of pattern-sensitive faults called row/column weight-sensitive faults. A test procedure is developed to detect faults from the defined fault model. This test sequence also tests the memory array for the 5-cell-neighborhood static pattern-sensitive faults and other faults, such as stuck-at-faults and coupling faults. A built-in self-test (BIST) version of the algorithm has been implemented by completing the logic design and layout in 2- mu m CMOS technology. The silicon area overhead for a 4M RAM is as little as 0.8%. The number of extra pins can be as low as one if clock is available on-chip. The number of extra pins can be as low as one if clock is available on-chip. The delay introduced to the normal paths, as estimated by simulation tools, is small and can be reduced even further.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>