gebhart/patrepeval huggingface dataset:
Radio resource sharing for ad hoc networking with UWB (2002)

Ultra-wideband (UWB) radio is becoming a promising field for new generation's digital communication systems. This technique, based mainly on the impulse radio paradigm, offers great flexibility and shows enormous potential in view of a future broadband wireless access. We present the main principles to design a multiaccess scheme based on UWB. The potential of UWB is exploited within a distributed ad hoc wireless system, where we describe the principles for the definition of a medium-access control (MAC) for mobile computing applications and we analyze the main performance results derived from simulations. A general framework for radio resource sharing is outlined for classes of traffic requiring both elastic-dynamic and guaranteed-reserved bandwidth. Then, we discuss the issue of supporting the proposed radio resource sharing scheme by means of a distributed MAC protocol.
Automated validation of distributed software using the IF environment (2002)

This paper summarizes our experience with IF, an open validation environment for distributed software systems. Indeed, face to the increasing complexity of such systems, none of the existing tools can cover by itself the whole validation process. The IF environment was built upon an expressive intermediate language and allows to connect several validation tools, providing most of the advanced techniques currently available. The results obtained on several large case-studies, including telecommunication protocols and embedded software systems, confirm the practical interest of this approach.
Influence of Acute Feed Deprivation or Excess Feed Intake on Immunocompetence of Broiler Chicks (1988)

Immunocompetence was determined in chicks subjected to 24 h feed deprivation or excess intake by measuring 1) hemagglutinin titers in response to sheep red blood cell (SRBC) injections given either before or after dietary treatments, 2) delayed hypersensitivity to human gamma globulin (HGG), or 3) in vitro, phytohaemagglutinin-induced mitogenesis of spleen lymphocytes taken immediately or 24 h after dietary treatment. In Experiment 1, chicks were intubated six times during a 24-h period with an isolated soy protein-dextrose diet at either 100% (control) or 150% of ad libitum consumption. Following the period of excess intake, half of the chicks were prevented from making a compensatory decrease in intake by force-feeding (Hi-equal) and half were permitted to decrease their intake (Hi-adlib). All chicks not force-fed were sham-intubated. Imposing force-feeding (Hi-equal) before or after challenge with SRBC resulted in significantly (P less than .05) decreased hemagglutinin titers. Force-feeding (Hi-equal) 24 h prior to HGG injection significantly decreased delayed hypersensitivity. Hi-adlib chicks did not respond differently than controls. In Experiment 2, chicks were either fed ad libitum (control), fasted for 24 or 48 h and then fed ad libitum (Low24-adlib and Low48-adlib), or deprived of feed for 24 or 48 h and then restricted to normal intake (Low24-equal and Low48-equal). Imposing Low24-equal feeding prior to SRBC injection resulted in significantly greater (P less than .05) hemagglutinin titers after 7 days than observed in control chicks. No other differences were seen. These studies demonstrate that an acute period of uncompensated overconsumption or feed deprivation decreases and increases, respectively, selected aspects of the immune response.
Using a Shifted Lens to Achieve Visual Depth in Facade Projections More Efficiently (2012)

This paper describes a method for creating spatial illusion projections in a simple yet efficient way. It uses the horizontal and vertical lens shift properties of a virtual camera in a 3D modelling software to produce a normalized image that can be subsequently mapped with a traditional mapping technique, as cornerpin keystone correction for instance, onto a real facade. Our calculations describe how to automatically derive horizontal and vertical shift values. The method was developed during the creation process of a series of projections created with the 3D modelling software “Blender”.
Improved P2P Streaming in Wireless Networks Utilizing Access Point P2P Agents (2007)

we see the overlay P2P network in the Internet as the In this paper, we present an improved method for media network providing video streaming for the live streaming in the wireless environment over an wireless terminal. And7 we Propose an improved overlay Peer-to-Peer (P2P) network. The key overlay P2P system that Conserves bandwidth by innovation is to pre-instalI the p2p a p t in enabling terminal nodes in wireless networks to send wireless access points (APs), and to utilize a multicast and receive media streaming from Internet, rather protocol between the APs and client terminals. By this than depending solely upon Peers for this function. means, client terminals can obtain smoother video The idea is to embed the overlay P2P agent into streams with less jitter. Experimental results indicate wireless access points and combine P2P networking that this improvement is especially dramatic as more with a m~lticast delivery paradim. wireless terminals request video content. Wireless The system adopts a data-driven overlay P2P networks will soon expen'ence much greater loading network in which every peer periodically reports to its as more P2P content is shared, and especially as new Partners which streaming begments it contains and video-enabled handheld wireless devices prol$erate. lacks, then retrieves data it lacks eom Partners, and Our experimental trafJic simulations show that our also provides data requested by others. The methods can better utilize bandwidth and support partnership formation is an essential key ComPment more rapid service scalability. for data-driven overlay P2P network. The partnership formation mechanism, SCAMP [5] gossip-based
A general framework and review of scatter correction methods in x‐ray cone‐beam computerized tomography. Part 1: Scatter compensation approaches (2011)

Since scattered radiation in cone-beam volume CT implies severe degradation of CT images by quantification errors, artifacts, and noise increase, scatter suppression is one of the main issues related to image quality in CBCT imaging. The aim of this review is to structurize the variety of scatter suppression methods, to analyze the common structure, and to develop a general framework for scatter correction procedures. In general, scatter suppression combines hardware techniques of scatter rejection and software methods of scatter correction. The authors emphasize that scatter correction procedures consist of the main components scatter estimation (by measurement or mathematical modeling) and scatter compensation (deterministic or statistical methods). The framework comprises most scatter correction approaches and its validity also goes beyond transmission CT. Before the advent of cone-beam CT, a lot of papers on scatter correction approaches in x-ray radiography, mammography, emission tomography, and in Megavolt CT had been published. The opportunity to avail from research in those other fields of medical imaging has not yet been sufficiently exploited. Therefore additional references are included when ever it seems pertinent. Scatter estimation and scatter compensation are typically intertwined in iterative procedures. It makes sense to recognize iterative approaches in the light of the concept of self-consistency. The importance of incorporating scatter compensation approaches into a statistical framework for noise minimization has to be underscored. Signal and noise propagation analysis is presented. A main result is the preservation of differential-signal-to-noise-ratio (dSNR) in CT projection data by ideal scatter correction. The objective of scatter compensation methods is the restoration of quantitative accuracy and a balance between low-contrast restoration and noise reduction. In a synopsis section, the different deterministic and statistical methods are discussed with respect to their properties and applications. The current paper is focused on scatter compensation algorithms. The multitude of scatter estimation models will be dealt with in a separate paper.
A convolution-integral representation for a class of linear operators (1972)

Let be the complex vector space consisting of all complex-valued functions of a non-negative real variable t . For each positive number u, the shift operator I u is the mapping of into itself defined by the formula A linear operator T which maps a subspace of into itself is said to be a V-operator ( 13 ) if: ( a ) for each x in , the complex-conjugate function x * is in ; ( b ) both and \ are invariant under the shift operators; ( c ) every shift operator commutes with T. (Property ( a ) ensures that every function x in can be uniquely expressed as x 1 + ix 2 , where x 1 and x 2 are real functions in .)
Linear Programming and Extensions (1963)

A basic text in linear programming, the solution of systems of linear equalities. The subjects covered include the concepts, origins and formulations of linear programs, and the simplex method of solution as applied to the price concept, matrix games, and transportation problems.
Shape Partitioning by Convexity (1999)

The partitioning of 2D shapes into subparts is an important component of shape analysis.This paper defines a formulation of convexity as a criterion of good part decomposition.Its appropriateness is validated by applying it to some simple shapes as well as against showing its close correspondence with Hoffman and Singh's part saliency factors.
Brander Matthews' Re-visioning of Crane's Maggie (1988)

DEVIEWING Stephen Crane's Maggie, Hamlin Garland praised the novella as the most truthful and unhackneyed tale of the slums he had ever read, but he qualified his praise of Crane's compelling study in naturalism by contending that it only a fragment. It is typical only of the worst elements of the alley. The author should delineate the families living on the next street, who live lives of heroic purity and hopeless hardship.1 Garland's critique of Maggie will be familiar to most Crane scholars; less known, however, is the fact that two months before his review appeared, Garland, apparently intending to promote Maggie, had urged Crane to send a copy of the book to Brander Matthews. An influential literary critic and professor of drama at Columbia University, Matthews was an intimate friend of and was highly regarded by not only Garland but William Dean Howells and Mark Twain as well. During the war being waged in the United States at the time between the literary romanticists and realists, Matthews was a staunch ally of the latter; and he especially encouraged accurate fictional portraits of New York City life. Matthews himself published a number of what he termed snapshot sketches of New York in the early I89os, reprinting twelve of them in a volume titled Vignettes of Manhattan in I894. Thus Garland had good reason for suggesting that Crane send his novella to the professor. Crane took Garland's advice. In a letter dated 2I March I893,
Amino-terminal extensions on skin collagen from sheep with a genetic defect in conversion of procollagen into collagen (1976)

A modified form of procollagen was extracted with 10 M urea from the skin of lambs with dermatosparaxis, a disease which is produced by a genetic defect in the conversion of procollagen to collagen. The extracts contained little if any alpha1 and alpha2 chains of normal type I collagen, and instead they contained the larger polypeptides palpha1 and palpha2 together with high polymers. palpha1 was purified by ion-exchange chromatography and gel filtration. The polypeptide was shown to be related to alpha1 by its chromatographic behavior, its amino acid composition, and the peptides obtained after cleavage with cyanogen bromide. The molecular weight of palpha1 by gel filtration was 112 300 +/- 6300. After digestion of palpha1 with bacterial collagenase, a fragment of about 100 amino acid residues was obtained which was similar in amino acid composition and antigenic activity to a comparable fragment previously obtained from the NH2-terminal region of palpha1 chains from dermatosparaxic cattle. However, after cleavage of palpha1 with cyanogen bromide, a larger NH2-terminal fragment of about 160 amino acid residues was obtained. The larger cyanogen bromide fragment contained 8 residues of hydroxyproline, 12 residues of proline, and 19 residues of glycine not found in the NH2-terminal fragment isolated after digestion with bacterial collagenase. The results indicated that, in addition to containing amino acid sequences similar to those found in globular proteins, the peptide extensions on the NH2-terminal end of the palpha1 chain of procollagen also contain amino acid sequences similar to those found in the triple-helical region of the collagen molecule. The molecular weight of palpha2 by gel filtration was 102 400 +/- 6800. No additional peptide fragment was recovered after digestion of palpha2 with bacterial collagenase.
Semantic analysis of virtual classes and nested classes (1999)

Virtual classes and nested classes are distinguishing features of BETA. Nested classes originated from Simula, but until recently they have not been part of main stream object- oriented languages. C++ has a restricted form of nested classes and they were included in Java 1.1. Virtual classes is the BETA mechanism for expressing generic classes and virtual classes is an alternative to parameterized classes. There has recently been an increasing interest in virtual classes and a number of proposals for adding virtual classes to other languages, extending virtual classes, and unifying virtual classes and parameterized classes have been made. Although virtual classes and nested classes have been used in BETA for more than a decade, their implementation has not been published. The purpose of this paper is to contribute to the understanding of virtual classes and nested classes by presenting the central elements of the semantic analysis used in the Mjølner BETA compiler.
Antiproliferative Mechanisms of the Flavonoids 2,2′-Dihydroxychalcone and Fisetin in Human Prostate Cancer Cells (2010)

We have previously demonstrated the antiproliferative effect of two flavonoids-2,2'-dihydroxychalcone (DHC), a novel synthetic flavonoid, and fisetin, a naturally occurring flavonol-in prostate cancer cells. In this study, we further examine the mechanisms of these compounds on survival and proliferation pathways. DHC and fisetin (1-50 microM) caused a dose-dependent reduction in viability, a concomitant increase in apoptosis in PC3 cells at 72 h, and a decrease in clonogenic survival at 24 h treatment. DHC was considerably more potent than fisetin in these cytotoxicity assays. The mechanism of accelerated cellular senescence was not activated by either compound in PC3 or lymph node carcinoma of the prostate (LNCaP) cells. Gene expression alterations in PC3 and LNCaP cells treated with 15 muM DHC and 25 microM fisetin for 6 to 24 h were determined by oligonucleotide array. Amongst the most highly represented functional categories of genes altered by both compounds was the cell cycle category. In total, 100 cell cycle genes were altered by DHC and fisetin including 27 genes with key functions in G2/M phase that were downregulated by both compounds. Other functional categories altered included chromosome organization, apoptosis, and stress response. These results demonstrate the multiple mechanisms of antitumor activity of DHC and fisetin in prostate cancer cells in vitro.
Enabling IOT services using WIFI - ZigBee gateway for a home automation system (2015)

Home automation system is a process of automating or adapting to basic household activities like control of Lighting, Heating, Ventilation and Air condition (HVAC) appliances on user command. A dedicated hand held device is ideal in providing a user interface in a home automation system, due to their portability and their wide range of capabilities. The hand held device runs on Linux OS which is an open source platform and can work on limited memory communication between the appliances a home automation network through low power communication protocols such as ZigBee. With the recent increase in the use of internet and cheaper components, large number of Home automation system with IOT capabilities are in demand. Home automation system prototype includes a gateway with user interactions capabilities, this experiment demonstrates that the proposed gateway work efficiently by sending and receiving instructions from different protocols, a Graphical User Interface (GUI) allows user to interact with the ambient environment settings.
Practical camera calibration and image rectification in monocular road traffic applications (2006)

In this paper we follow a practical approach to the problem of camera calibration and image formation in a typical computer vision based traffic monitoring system. Our study starts by analysing in detail the capturing scenario and the undesirable effects resulting from the application of the pinhole camera model to traffic images. Based on the acquired experience, we present an integral method to obtain the transformation matrices required to calibrate the camera and to construct in real time a rectified and sub-sampled image where perspective effects on the road plane have been removed. The motivation for this perspective-free image is to reduce the amount of data which must be computed (while avoiding loss of relevant information), remove influences from objects external to the capturing area and simplify the operation of the subsequent detection and tracking stages. The latter statement is justified since vehicle shapes can now be approximated by rectangles, the distance between any two neighbouring points on the road plane remains constant all over the image, and parallel trajectories are restored in the rectified image.
Stabilization of Recombinant Human Keratinocyte Growth Factor by Osmolytes and Salts (1996)

Keratinocyte growth factor (KGF) has limited stability in aqueous media, as it undergoes denaturation followed by aggregation at 37 degrees C. Heparin and anionic polymers have been shown to increase the denaturation temperatures and extend the half-life of the monomeric, native form of KGF during storage. These polymers, however, bind more than one protein molecule with high affinity, and such tight complex formation may cause problems for clinical use. In this study, we have tested low molecular weight additives, such as osmolytes and salts, for their effects on the stability of KGF against thermal denaturation and high-temperature storage. Salts such as NaCl, sodium phosphate, ammonium sulfate, and sodium citrate were highly effective in increasing both the denaturation temperature and storage stability. The fact that the same additives stabilize KGF against both stresses is consistent with the idea that the storage stability is determined by denaturation followed by aggregation. Among the osmolytes tested, N,N'-dimethylglycine, trehalose, and sucrose were also effective stabilizers. However, quantitative comparison of the osmolytes tested indicated that their effectiveness on the thermal denaturation and the storage stability is not exactly parallel, suggesting that other factors also contribute to the storage stability.
Amplifier linearization for the local multipoint distribution system application (2002)

The deployment of the local multipoint distribution systems (LMDS) is not too far off in the future. Challenging milestones are now being tackled, such as the design of the hub and end user transmitter amplifier. The design goals placed on this amplifier at 28 GHz make linearization an inevitable choice. Of the published linearization techniques, the feedback+feedforward design shows the most promising solution for an LMDS implementation. This design is adaptive, offers fairly simple implementation, and does not decrease the overall gain of the amplifier as a typical feedback system does. Since designing an amplifier for linearity and gain is difficult at 28 GHz, sacrificing gain will only make problems worse. This technique is a solution to the feedback dilemma and is effective in reducing distortion.
Amide−Silyl Ligand Exchanges and Equilibria among Group 4 Amide and Silyl Complexes (2007)

M(NMe2)4 (M = Zr, 1a; Hf, 1b) and the silyl anion (SiButPh2)- (2) in Li(THF)2SiButPh2 (2-Li) were found to undergo a ligand exchange to give [M(NMe2)3(SiButPh2)2]- (M = Zr, 3a; Hf, 3b) and [M(NMe2)5]- (M = Zr, 4a; Hf, 4b) in THF. The reaction is reversible, leading to equilibria: 2 1a (or 1b) + 2 2 <--> 3a (or 3b) + 4a (or 4b). In toluene, the reaction of 1a with 2 yields [(Me2N)3Zr(SiButPh2)2]-[Zr(NMe2)5Li2(THF)4]+ (5) as an ionic pair. The silyl anion 2 selectively attacks the -N(SiMe3)2 ligand in (Me2N)3Zr-N(SiMe3)2 (6a) to give 3a and [N(SiMe3)2]- (7) in reversible reaction: 6a + 2 2 <--> 3a + 7. The following equilibria have also been observed and studied: 2M(NMe2)4 (1a; 1b) + [Si(SiMe3)3]- (8) <--> (Me2N)3M-Si(SiMe3)3 (M = Zr, 9a; Hf, 9b) + [M(NMe2)5]- (M = Zr, 4a; Hf, 4b); 6a (or 6b) + 8 <--> 9a (or 9b) + [N(SiMe3)2]- (7). The current study represents rare, direct observations of reversible amide-silyl exchanges and their equilibria. Crystal structures of 5, (Me2N)3Hf-Si(SiMe3)3 (9b), and [Hf(NMe2)4]2 (dimer of 1b), as well as the preparation of (Me2N)3M-N(SiMe3)2 (6a; 6b) are also reported.
Switching for electric rail guns (1984)

A single stage rail gun driven from an inductive energy store requires a direct commutation switch. The high current levels and long conduction times dictate a fresh approach to the switch. This paper examines the commutation event and describes a successful 500 kA direct commutation rail gun switch.
Skeletal alteration to improve beef longissimus muscle tenderness. (1997)

A prerigor cut was made through the 12th thoracic vertebra of one side of the beef carcasses (Tendercut) studied (five unbranded), and the other sides served as the controls (C). After 48 h postmortem, the longissimus from each side was removed starting from the junction between the 5th and 6th lumbar vertebrae to the point between the 5th and 6th thoracic vertebrae. The longissimus muscle was cut into four equal boneless sections to determine the effectiveness of this treatment on improving tenderness at different locations along this muscle. The effects of Tendercut upon yield grade, sensory attributes, and tenderness of longissimus steaks were determined. This treatment did not affect (P > .05) yield grade, CIE L* a* b* values, chemical states of myoglobin, purge and cooking losses, and total collagen. Steaks located closer to the treatment site were more juicy than controls. Peak force values were not significantly different. Sarcomere length was longer (P < .05) and sensory panel ratings for myofibrillar tenderness, connective tissue, and overall tenderness were higher (P < .05), indicating that this skeletal alteration technique increased tenderness. Sensory data revealed that skeletal and connective tissue cuts at a single site (12th thoracic vertebrae) on the beef rib improved the tenderness along the entire length of the longissimus muscle. This study demonstrated that Tendercut, a simple process that does not require any new equipment or alterations to existing facilities to implement, is a viable tenderness enhancement technique.
Effect of dihydroxydibutylether on the lithogenic index of patients with cholesterol gallstones. (1981)

Daily administration of 900 mg dihydroxydibutylether (DHBE) produced a significant reduction of lithogenic index in patients with cholesterol gallstones. After treatment with placebo, in the same subjects the lithogenic index rises significantly. The activity of DHBE is not casual.