gebhart/patrepeval huggingface dataset:
Near-optimal PLL design for decision-feedback carrier and timing recovery (2001)

A new design method is presented for the design of PLL loop filters for carrier recovery, bit timing, or other synchronization loops given the phase noise spectrum and noise level. Unlike the conventional designs, our design incorporates a possible large decision delay and S-curve slope uncertainty. Large decision delays frequently exist in modern receivers due to, for example, a convolutional decoder or an equalizer. The new design also applies to coherent optical communications where delay in the loop limits the laser linewidth. We provide an easy-to-use complete design procedure for second-order loops. We also introduce a design procedure for higher order loops for near-optimal performance. We show that using the traditional second-order loop is suboptimal when there is a delay in the loop, and also shows large improvements, either in the amount of allowed delay, or the phase error variance in the presence of delay.
A clustered NOC in group communication (2008)

In this paper, a clustered network on chip (C-NOC) a modified model of Hermes NOC (H-NOC) is introduced. The clustered NOC switch has four local ports. When the packets are switched to local ports, the network traffic load and, consequently, the average delay time of a packet are decreased in group communication. When the distance of nodes in each group are increased in a mesh, the performance of mesh is decreased in group communication. But the performance of clustered NOC is increased for at least 19.7%. In clustered NOC, when the size of network is decreased, the average delay time and the total clock pulses are increased. These results indicate the clustered NOC is a suitable candidate for group communication.
Introduction to UPC and Language Specification (2000)

UPC is a parallel extension of the C programming language intended for multiprocessors with a common global address space. A descendant of Split-C [CDG 93], AC [CaDr 95], and PCP [BrWa 95], UPC has two primary objectives: 1) to provide efficient access to the underlying machine, and 2) to establish a common syntax and semantics for explicitly parallel programming in C. The quest for high performance means in particular that UPC tries to minimize the overhead involved in communication among cooperating threads. When the underlying hardware enables a processor to read and write remote memory without intervention by the remote processor (as in the SGI/Cray T3D and T3E), UPC provides the programmer with a direct and easy mapping from the language to low-level machine instructions. At the same time, UPC’s parallel features can be mapped onto existing message-passing software or onto physically shared memory to make its programs portable from one parallel architecture to another. As a consequence, vendors who wish to implement an explicitly parallel C could use the syntax and semantics of UPC as a basis for a standard.
Study of longitudinal mode structure of laser by optical spectrum analyzer (1984)

A senior level undergraduate experiment to study the axial modes of a laser using an optical spectrum analyzer is described. A brief introduction to the principle of Fabry–Perot interferometer and cavity resonances is given. Experimental arrangement to use the analyzer for display of modes, and as a narrow-band filter is discussed. The mode structure of a 0.3-m He–Ne laser is compared with a 1.85-m-long laser.
Comparative Characterization of PP Nano‐ and Microcomposites by In‐Mold Shrinkage Measurements and Structural Characteristics (2007)

Abstract Poly(propylene)‐clay nanocomposites and poly(propylene) containing conventional inorganic fillers such as calcium carbonate (CaCO 3 ) and glass fiber were used in a comparative study focusing on dimensional stability, structure, mechanical and thermal properties. Micro‐ and nanocomposites were prepared by melt blending in a twin‐screw extruder. The relative influence of each filler was observed from dimensional stability measurements and structural analysis by WAXD, TEM, and thermal and mechanical properties. At equal filler loadings, PP/clay nanocomposites exhibit an improvement in dimensional stability and were the only composites capable of reduced shrinkage in both in‐flow and cross‐flow directions. The flexural modulus of PP increased nearly 20% by compounding with 4% organoclay, as compared to a similar performance obtained by compounding with 10 wt.‐% of CaCO 3 or approximately 6 wt.‐% of glass fiber. The HDT and thermal stability of PP were enhanced by using nanoclay as filler. magnified image
XML-less EXI with code generation for integration of embedded devices in web based systems (2012)

XML is a widely used as message serialization format in web-based open and heterogeneous systems because of its flexible data model. Internet-of-Things (IoT), or network with constrained nodes, is expected to be heterogeneous, and flexibility and expressiveness of XML are also good for IoT. However, RAM and bandwidth constraints on such nodes make handling of XML difficult. The authors are developing XML-less EXI to solve the problem. Our approach adopts Efficient XML Interchange (EXI) as alternative serialization form of XML. It solves the bandwidth problem of XML. At the same time, the authors apply code generation techniques to encode/decode EXI stream without XML data models on constrained nodes. Static state machines from a schema-informed EXI grammar enable constrained nodes to convert EXI data directly from/to its internal data. The authors show that XML-less EXI is highly efficient in RAM usage regardless of the size of an EXI stream and more compact in ROM size than other implementations. The authors also provide code size estimations for a set of schema-informed EXI grammars and insights on how to make the grammars compact.
New Information Technology and Organisational Decision Making (1990)

Abstract Questions are posed concerning the influence that developments in information technology have on the practice of management and decision making in organisations. For example, is there evidence that decision making is faster or more rational, or that it yields better results? Has the new information technology drastically altered a manager’s job? In this article it is argued that developments in this field have not been nearly as rapid as it is often claimed. Explanations for this relatively low speed with which management has adopted new information technology are sought in the nature of a manager’s work and in the variety of types of decision making processes. An analysis is undertaken of the socio-cultural conditions and the types of decision-making processes in which the greatest changes have occurred and/or are to be expected. The way in which management in general has reacted to new possibilities in the field of information technology is discussed. Recommendations are made for action and research by work and organisational psychologists.
Semi‐random P3HT analogs via direct arylation polymerization (2012)

Semi-random P3HT analogs and P3HT were synthesized by direct arylation polymerization (DARP) and Stille polycondensation. In several cases, both methods provide polymers with similar molecular weights and polydispersities. Although these two synthetic protocols are strategically similar, preliminary evidence suggests that they give different linkage patterns in the polymers. This translates into different polymer properties as studied by UV–vis, GIXRD, 1H NMR, 13C NMR, DSC, and TGA.
Practical and lightweight domain isolation on Android (2011)

In this paper, we introduce a security framework for practical and lightweight domain isolation on Android to mitigate unauthorized data access and communication among applications of different trust levels (e.g., private and corporate). We present the design and implementation of our framework, TrustDroid, which in contrast to existing solutions enables isolation at different layers of the Android software stack: (1) at the middleware layer to prevent inter-domain application communication and data access, (2) at the kernel layer to enforce mandatory access control on the file system and on Inter-Process Communication (IPC) channels, and (3) at the network layer to mediate network traffic. For instance, (3) allows network data to be only read by a particular domain, or enables basic context-based policies such as preventing Internet access by untrusted applications while an employee is connected to the company's network.
타자로서의 동물: 쿳시의 소설을 중심으로 (2009)

In the novels of J. M. Coetzee, the relation of subject and the Other and subject`s responsibility for the other have been revealed. Subjects described as dominant at the beginning of the novel are affected by the totally unknowable Other and feel the sense of responsibility for the uncontrollable Other. Their relation is ethical because the completely silent and unknowable Other make subjects powerless and feel the sense of responsibility that can`t be performed in reality. For Emmanuel Levinas, the relation of subject and the Other is neither selective nor an alternative for a rational consciousness. And this ethics for the Other is similar to the ethics described in novels of J. M. Coetzee. But the striking difference between their ethics is that the object of responsibility in the novel of J. M. Coetzee is not only the human being but also the animal. Elizabeth Costello, the principal of The Lives of Animals, maintains that we can imagine what it is like to be the body of animal throughout `sympathetic imagination.` The identity of the human being can be dependant on the animal Other as the man feel sympathy for the suffering animal. The Other is not confined to the human other and the animal Other is not sacrificed for the human being in novels of J. M. Coetzee. The Other is not divided clearly with the human being and animal being. The alterity of the Other being symbolizes the animality of the man that has been suppressed by the subject but comprises the internal and unremovable of human subject. Abyss maintained by many philosophers and theorists between the man and the animal is not valid any longer in the works of J. M. Coetzee. Throughout the finitude of death and suffering of body, he transcends the insuperable line between the human being and the animal being.
Takagi–Sugeno Fuzzy Models in the Framework of Orthonormal Basis Functions (2012)

An approach to obtain Takagi-Sugeno (TS) fuzzy models of nonlinear dynamic systems using the framework of orthonormal basis functions (OBFs) is presented in this paper. This approach is based on an architecture in which local linear models with ladder-structured generalized OBFs (GOBFs) constitute the fuzzy rule consequents and the outputs of the corresponding GOBF filters are input variables for the rule antecedents. The resulting GOBF-TS model is characterized by having only real-valued parameters that do not depend on any user specification about particular types of functions to be used in the orthonormal basis. The fuzzy rules of the model are initially obtained by means of a well-known technique based on fuzzy clustering and least squares. Those rules are then simplified, and the model parameters (GOBF poles, GOBF expansion coefficients, and fuzzy membership functions) are subsequently adjusted by using a nonlinear optimization algorithm. The exact gradients of an error functional with respect to the parameters to be optimized are computed analytically. Those gradients provide exact search directions for the optimization process, which relies solely on input-output data measured from the system to be modeled. An example is presented to illustrate the performance of this approach in the modeling of a complex nonlinear dynamic system.
I. M. Bocheński. Notes historiques sur les propositions modales. Revue des science philosophiques et théologiques (Paris), vol. 26 (1937), pp. 673–692. (1938)

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Characterization of a New Potassium Titanate, KTiO<sub>2</sub>(OH) Synthesized via Hydrothermal Method (2002)

A new potassium titanate, KTiO2(OH), synthesized by hydrothermal oxidation of Ti metal powder in KOH solution was characterized. The X-ray photospectroscopy revealed that titanium contained in this compound consists of only Ti4+, and FT-IR spectrum supported the existence of hydroxyl group in the structure. It was found that the titanate has a hexagonal tunnel structure with the space group P6122 and lattice parameters a = 9.8889 Å and c = 28.6711 Å, by crystal structure analysis with the use of powder XRD pattern. This agrees with the results of electron diffraction and morphology observed by SEM. The heating of KTiO2(OH) above 528 °C led to dehydration and phase transformation to give K2Ti2O5.
A Multi-layer Recursive Residue Number System (2018)

We present a method to increase the dynamical range of a Residue Number System (RNS) by adding virtual RNS layers on top of the original RNS, where the required modular arithmetic for a modulus on any non-bottom layer is implemented by means of an RNS Montgomery multiplication algorithm that uses the RNS on the layer below. As a result, the actual arithmetic is deferred to the bottom layer. The multiplication algorithm that we use is based on an algorithm by Bajard and Imbert, extended to work with pseudo-residues (remainders with a larger range than the modulus). The resulting Recursive Residue Number System (RRNS) can be used to implement modular addition, multiplication, and multiply-and-accumulate for very large (2000+ bits) moduli, using only modular operations for small (for example 8-bits) moduli. A hardware implementation of this method allows for massive parallelization. Our method can be applied in cryptographic algorithms such as RSA to realize modular exponentiation with a large (2048-bit, or even 4096-bit) modulus. Due to the use of full RNS Montgomery algorithms, the system does not involve any carries, therefore cryptographic attacks that exploit carries cannot be applied. A full version of this paper is accessible at: http://www.arxiv.org/abs/1801.07561
Compensation of timing jitter-induced distortion of sampled waveforms (1994)

The presence of timing jitter between the trigger signal and the sampling strobe in an equivalent-time sampling oscilloscope causes distortion of the recorded waveform. Two methods exist to estimate the waveform from the jittered measurements. One method, called the median method, is based on the calculation of the point-by-point median of a large set of waveform measurements. It is shown here that this method is asymptotically biased if noise is present and if the waveform is nonmonotonic. Another method, called the pdf deconvolution method, is based on an estimation of the jitter probability density function and on a technique to deconvolve this density function from the average of all recorded waveforms. To estimate the jitter probability density function, it is assumed that the waveform has a part which can very well be approximated by a ramp during a time span which is smaller than the standard deviation. It is shown that a significant asymptotic bias is introduced by the method when this assumption is violated. A novel approach is proposed, based on a parametric model of the jitter probability density function, which results in an asymptotic unbiased estimate of the jitter probability density function. The method is experimentally verified, and it is explained why this method is especially useful when one is interested in the Fourier spectrum of the recorded waveform.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Die Synthese des Imidobisschwefelsäurefluorids, HN(SO<sub>2</sub>F)<sub>2</sub> (1962)

Abstract Als erstes Halogenid der Imidobisschwefelsäure wurde das Fluorid, FSO 2 ‐NH‐SO 2 F, durch Umsetzung von Harnstoff mit Fluorsulfonsäure dargestellt. Es wurde zum Strukturbeweis mit Kaliumamid in Imidosulfamid übergeführt. Einige Eigenschaften der Substanz werden mitgeteilt.
Somatic and autonomic function in progressive autonomic failure and multiple system atrophy (1987)

We studied 62 consecutive patients with progressive autonomic failure (PAF) or multiple system atrophy (MSA) (26 PAF; 36 MSA). Patients were well matched in age (67 vs 66 years), duration (39 vs 36 months), and severity of autonomic failure (median values for PAF and MSA). Peripheral somatic neuropathy occurred in 2 patients with PAF and 7 patients with MSA. Postganglionic sudomotor and vasomotor functions were studied using the quantitative sudomotor axon reflex test and supine plasma norepinephrine. The extent and severity of autonomic failure were assessed by the thermoregulatory sweat test, by heart rate responses to deep breathing and the Valsalva maneuver, and by blood pressure recordings. Severe and widespread anhidrosis was found in both PAF and MSA patients. Postganglionic sudomotor failure occurred at the forearm in 50% each of PAF and MSA patients and at the foot in 69% and 66% of PAF and MSA patients, respectively. However, postganglionic sudomotor function was preserved in some patients with anhidrosis on thermoregulatory sweat test, indicating a preganglionic lesion. Vagal abnormalities were found in 77% and 81% of PAF and MSA patients. Supine plasma free norepinephrine values were significantly reduced in PAF (p less than 0.001), but not in MSA, patients. Standing plasma norepinephrine values were reduced in both PAF (p less than 0.001) and MSA (p less than 0.001) patients. We conclude the following: (1) PAF is characterized by combined postganglionic sudomotor and adrenergic failure. (2) MSA is associated with a similar frequency of postganglionic sudomotor failure, but postganglionic adrenergic denervation was uncommon. (3) Preganglionic neuron is also involved in both disorders, but more severely in MSA. (4) Somatic neuropathy may occur.
The Evolution of the Peer-to-Peer File Sharing Industry and the Security Risks for Users (2008)

Peer-to-peer file sharing is a growing security risk for firms and individuals. Users who participate in these networks to share music, pictures, and video are subject to many security risks including inadvertent publishing of private information, exposure to viruses and worms, and the consequences of spyware. In this paper, we examine the peer-to-peer file sharing phenomena, including an overview of the industry, its business models, and evolution. We describe the information security risks users' face including personal identification disclosure and leakage of proprietary business information. We illustrate those risks through honey-pot experiments and discuss how peer-to-peer industry dynamics are contributing to the security problem.
An automated scoring procedure for the micronucleus test by image analysis (2004)

The micronucleus assay (MNT) in human lymphocytes is frequently used to assess chromosomal damage as a consequence of environmental mutagen exposure, to assess the effect of mutagens or to search for reduced DNA repair capacity after a mutagenic challenge. We have established an automated scoring procedure for the cytokinesis blocked MNT based on computerized image analysis (Metasystems Metafer 4 version 2.12). To evaluate the results we used the reproducibility of counts, established a dose-response curve for gamma-irradiation and used the ability of the system to differentiate between breast cancer patients and controls as a biological reference, a difference which we had observed before by visual counting. Blood cultures were irradiated with gamma-rays (2 Gy) at the beginning and treated with cytochalasin B during the last 24 h. The slides were stained with Giemsa for visual counting and with DAPI for automated analysis. Our test sample consisted of 73 persons (27 with breast cancer and 26 female and 20 male controls). A comparison between visual counting (controls, mean MN frequency 313) and automated counting (mean MN frequency 106) in slides from the same culture revealed a large drop for the automated counts. However, the automated counts were as reproducible as the visual counts [coefficient of variation (CV) on the sample approximately 20%; CV on repeated counts of the same slides approximately 5%] and both counts were highly correlated. Furthermore, the discrimination between cases and controls improved for automated counting of slides from the same cultures [visual odds rato (OR) < or = 4.0, P = 0.009; automated OR > 16, P < 0.0001], with a strong dependence on the set of parameters used. This improvement was confirmed in a validation sample of an additional 21 controls and 20 cases (OR = 11, P = 0.0018) performed as a prospective or diagnostic test.
Utilization of Cellulose Oligosaccharides by <i>Cellvibrio gilvus</i> (1965)

Schafer, Marion L. (Virginia Polytechnic Institute, Blacksburg), and Kendall W. King. Utilization of cellulose oligosaccharides by Cellvibrio gilvus. J. Bacteriol. 89:113-116. 1965.-The hypothesis that oligosaccharides of the cellulose polymer series can be absorbed by cellulolytic bacteria, prior to hydrolysis to the level of glucose or cellobiose, has been tested. Resting-cell suspensions of Cellvibrio gilvus removed oligosaccharides of one to six monomer units from solution at a rate providing the cells with 37 x 10(6) to 42 x 10(6) molecules of glucose per cell per minute. There was no concurrent extracellular hydrolysis of the oligosaccharides. The fact that the rate of uptake was constant indicates that an active absorption system is involved. Filtrates from washed-cell suspensions before or after exposure to the oligosaccharides were incapable of hydrolyzing the sugars. In media where the carbohydrate concentration was growth-limiting, the larger members of the oligosaccharide series supported greater final cell densities than the smaller sugars, but there were no recognizable differences in the growth rates during the logarithmic-growth phase.
The Constitutional Rights of Non-Custodial Parents (2006)

As a Siben Distinguished Lecturer, Professor Meyer was asked to write an article for the Hofstra Law Review. His article, cited below, may be downloaded from the link at the top of the page.\nDavid D. Meyer, The Constitutional Rights of Non-Custodial Parents, 34 Hofstra L. Rev. 1461 (2006).