gebhart/patrepeval huggingface dataset:
Thermal conductivity enhancement in micro- and nano-particle suspensions (2009)

It has been recognized that the addition of highly conductive particles can significantly increase the thermal conductivity of heat-transfer fluids. Particles in the micro- and nano-size range have attracted the most interest because of their enhanced stability against sedimentation and, as a result, reduction in potential for clogging a flow system. Additional interest has been drawn by recent reports of anomalous enhancements in thermal conductivity above predictions of classical theory for suspensions containing nano-particles. In this research we report on an experimental study of the effective thermal conductivity of suspensions containing micro- and nano-particles.First, we investigated the effect of the particle aspect ratio on heat transfer in fluids. Spherical and cylindrical silicon-carbide particles were dispersed in ethylene glycol, and multi-walled nanotubes were suspended in water with surfactant. To carry out a detailed analysis, size and geometry of the particles were determined from optical and transmission-electron-microscopy imaging. Provided the volume-averaged aspect ratio was used in theoretical calculations, the conductivity of the silicon carbide suspensions was found to be in excellent agreement with effective-medium theory. Experimental data on the thermal conductivity of multi-walled nanotubes dispersions could also be interpreted in terms of the aspect-ratio dependence predicted by effective medium theory if the additional nanoscale effect of interfacial resistance was considered. The aspect ratio of dispersed particles was changed through further processing of both micro- and nano-fluids. As the result, the obtained thermal conductivities doubtlessly revealed that aspect ratio is a key factor affecting conductive heat transport in suspensions. For nanofluids, despite the promise of enhanced stability due to the nanoscale size of particles, particle agglomeration state can have a profound effect on the resulting thermal conductivity of the suspension. This was investigated by coupling thermal conductivity experiments with optical-absorbance and zeta-potential measurements of the stability of carbon nanotube-based nanofluids.An optimal surfactant-to-carbon nanotube mass ratio was found that resulted in both maximum thermal conductivity enhancement and suspension stability. Comparison of thermal conductivities for well-dispersed and agglomerated suspensions was carried out with the aid of ethanol de-stabilization. The experimental data indicated that only individualized nanotubes contribute appreciably to the thermal conductivity enhancement and, as a result, suspension stability is another essential parameter affecting the thermal conductivity of nanoparticle suspensions.
Ring of Liberation: Deceptive Discourse in Brazilian Capoeira. by J. Lowell Lewis. Chicago: University of Chicago Press. 1992. xxx + 263 pp., photographs, illustrations, maps, tables, figures, appendices, glossary, references (bibliography, discography, films and videos), index. $14.95 paperbound. (1993)

Based on eighteen months of intensive participant-observation, Ring of Liberation offers both an in-depth description of capoeira--a complex Afro-Brazilian martial art that combines feats of great strength and athleticism with music and poetry--and a pioneering synthetic approach to the analysis of complex cultural performance.Capoeira originated in early slave culture and is practiced widely today by urban Brazilians and others. At once game, sport, mock combat, and ritualized performance, it involves two players who dance and battle within a ring of musicians and singers. Stunning physical performances combine with music and poetry in a form as expressive in movement as it is in word.J. Lowell Lewis explores the convergence of form and content in capoeira. The many components and characteristics of this elaborate black art form--for example, competing genre frameworks and the necessary fusion of multiple modes of expression--demand, Lewis feels, to be given body as well as voice. In response, he uses Peircean semiotics and recent work in discourse and performance theory to map the connections between physical, musical, and linguistic play in capoeira and to reflect on the general relations between semiotic systems and the creation and recording of cultural meaning.
Low rank matrix recovery for real-time cardiac MRI (2010)

Real-time cardiac MRI is a very challenging problem because of limitations on imaging speed and resolution. To address this problem, the (k,t) - space MR signal is modeled as being partially separable along the spatial and temporal dimensions, which results in a rank-deficient data matrix. Image reconstruction is then formulated as a low-rank matrix recovery problem, which is solved using emerging low-rank matrix recovery techniques. In this paper, the Power Factorization algorithm is applied to efficiently recover the cardiac data matrix. Promising results are presented to demonstrate the performance of this novel approach.
Low-order modeling of vehicle roll dynamics (2006)

This work presents results of an ongoing investigation into models and control strategies suitable to prevent vehicle rollover due to untripped driving maneuvers. For use as a design model for controller synthesis, low-order models are sought that have sufficient complexity to characterize a vehicle's roll behavior, yet are not unnecessarily complex or nonlinear. To compare different low-order models found in literature, this work investigates the validity of several roll dynamic models by comparing model prediction to experiment in both the time and frequency domains. Discussion is also given on methods for parametric fitting of the models and areas where significant model error is observed.
On hope: Critical rereadings (2010)

Abstract: Some recent discussions of Christian hope refer to the difficulties posed for a theology of hope in view of aspects of contemporary thought. Of particular interest here are those discussions that include reference to the thinking of Jacques Derrida, and the way in which in his work he makes use of a messianic structure yet seems to exclude the possibility of any realised messianic hope.1 While there are aspects of Derrida’s thought that pose challenges for Christianity, a dialogue with Derrida and others can also help to open up theology to its own best possibilities. In what follows I propose to pursue such a dialogue, especially in the light of specific issues raised by James K. A. Smith. Derrida’s hope uch of Derrida’s writing concerns the possibility of openness to the completely other (“the impossible”), to an event that cannot be expected, planned for, recuperated or accommodated within the circle, however we might characterise it (structure, reason, the economy, or a horizon of meaning, for example). Justice, love, forgiveness, the gift, and so on, exemplify the impossible. As promise, the impossible impassions and motivates us but remains part of an absolute future that cannot be presented as such.2 Its conditions of possibility are, equally, its conditions
Relationship Research between Subjective Well-being and Unsafe Behavior of Coal Miners (2017)

In recent years, China’s coal mine safety accidents are frequently. Human factors are the main cause of coal mine safety accidents, and miners’ unsafe behavior is one of the main forms of human factors. It is necessary to conduct in-depth study on the unsafe behavior of miners to ensure the safety of coal mine. In this study, the relationship between coal miners’ subjective well-being and unsafe behavior was examined from the perspective of ordinary miners’ well-being. And then the influencing factors of miners’ unsafe behavior were analyzed. Two hundred miners were selected randomly for this study in Datong Coal Mine Group of Shanxi Province. Then, a questionnaire was completed by the 200 miners respectively, and a valid sample of 184 responses was collected. SPSS23.0 software was used to organize and analyze these data. The conclusions show that the hypotheses were all confirmed, and subjective well-being has a significant impact on miners’ unsafe behavior, positive emotion has a negative influence on miners’ unsafe behavior, negative emotion has a significant positive impact on miners’ unsafe behavior, and life satisfaction has a significant negative relationship with miners’ unsafe behavior. Thus, some countermeasures were put forward for coal mine managers to enhance miners’ subjective well-being and reduce their unsafe behaviors.
Abstract: Production system for ion milling with a large-diameter ion beam (1978)

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Single-Cell Imaging of Metastatic Potential of Cancer Cells (2018)

Molecular imaging of metastatic "potential" is an unvanquished challenge. To engineer biosensors that can detect and measure the metastatic "potential" of single living cancer cells, we carried out a comprehensive analysis of the pan-cancer phosphoproteome to search for actin remodelers required for cell migration, which are enriched in cancers but excluded in normal cells. Only one phosphoprotein emerged, tyr-phosphorylated CCDC88A (GIV/Girdin), a bona fide metastasis-related protein across a variety of solid tumors. We designed multi-modular biosensors that are partly derived from GIV, and because GIV integrates prometastatic signaling by multiple oncogenic receptors, we named them "'integrators of metastatic potential (IMP)." IMPs captured the heterogeneity of metastatic potential within primary lung and breast tumors at steady state, detected those few cells that have acquired the highest metastatic potential, and tracked their enrichment during metastasis. These findings provide proof of concept that IMPs can measure the diversity and plasticity of metastatic potential of tumor cells in a sensitive and unbiased way.
Mathematical Modeling and Computer Simulation in Blood Coagulation (2005)

Over the last two decades, mathematical modeling has become a popular tool in study of blood coagulation. The in silico methods were able to yield interesting and significant results in the understanding of both individual reaction mechanisms and regulation of large sections of the coagulation cascade. The objective of this paper is to review the development of theoretical research in hemostasis and thrombosis, to summarize the main findings, and outline problems and possible prospects in the use of mathematical modeling and computer simulation approaches. This review is primarily focused on the studies dealing with: (1) the membrane-dependent reactions of coagulation; (2) regulation of the coagulation cascade, including effects of positive and negative feedback loops, diffusion of coagulation factors, and blood flow.
A 1.04 - 4V, Digital-Intensive Dual-Mode BLE 5.0/IEEE 802.15.4 Transceiver SoC with extended range in 28nm CMOS (2019)

The proposed fully-integrated digital-intensive TRX SoC allows dual-mode protocols of BLE 5.0 and IEEE 802.14.5 with extended-range wireless connectivity and simple ad-hoc mesh networks for the IoTs in smart homes. A 1.04 - 4V with dual-mode supply schemes enables the SoC to be applied for various IoT systems energy-effectively and extends battery lifetime cost-effectively. The TRX employs a low insertion loss CMOS transmit- receive switch, a class-D power amplifier with HD2 calibration, a low-IF RX architecture with ΔΣ ADC-based complex filter, and a low power ADPLL with LMS-based two-point direct frequency modulation. The TRX implemented in a 28nm CMOS process achieves the maximum output power of +10dBm while consuming 45mW at the TX, <-102dBm at IEEE802.15.4 mode while consuming 6mW at the RX.
Terahertz imaging: a new non-destructive technique for the quality control of plastic weld joints (2007)

We present the first investigation of plastic weld joints using terahertz waves. Terahertz time-domain spectroscopy clearly reveals contaminations like metal or sand within the weld joint of two high-density polyethylene sheets. Furthermore, areas can be identified where the welding process has failed and the parts to be joined are separated by a small air gap. We show that a three layer structure of polyethylene-air-polyethylene has a characteristic, frequency-dependent transmission behaviour. This allows for a distinction between welded and non-welded material as well as for the calculation of the air layer thickness from the relative transmission spectrum. Consequently, terahertz time-domain spectroscopy provides a promising new non-destructive and even contactless technique, which is desired by the plastics industry for detecting a variety of deviations from the ideal welding process.
Privacy-Enhanced Methods for Comparing Compressed DNA Sequences (2011)

In this paper, we study methods for improving the efficiency and privacy of compressed DNA sequence comparison computations, under various querying scenarios. For instance, one scenario involves a querier, Bob, who wants to test if his DNA string, $Q$, is close to a DNA string, $Y$, owned by a data owner, Alice, but Bob does not want to reveal $Q$ to Alice and Alice is willing to reveal $Y$ to Bob \emph{only if} it is close to $Q$. We describe a privacy-enhanced method for comparing two compressed DNA sequences, which can be used to achieve the goals of such a scenario. Our method involves a reduction to set differencing, and we describe a privacy-enhanced protocol for set differencing that achieves absolute privacy for Bob (in the information theoretic sense), and a quantifiable degree of privacy protection for Alice. One of the important features of our protocols, which makes them ideally suited to privacy-enhanced DNA sequence comparison problems, is that the communication complexity of our solutions is proportional to a threshold that bounds the cardinality of the set differences that are of interest, rather than the cardinality of the sets involved (which correlates to the length of the DNA sequences). Moreover, in our protocols, the querier, Bob, can easily compute the set difference only if its cardinality is close to or below a specified threshold.
Comparison of Blade Cooling Performance Using Alternative Fluids (2002)

CO2 emissions reduction has become an important topic, especially after Kyoto protocol. There are several ways to reduce the overall amount of CO2 discharged into the atmosphere, for example using alternative fluids such as steam or CO2. It is therefore interesting to analyze the consequences of their usage on overall performances of gas turbine and blade cooling systems. The presence of steam can be associated with combined or STIG cycle, whereas pure carbon dioxide or air-carbon dioxide mixtures are present in innovative cycles, where the exhaust gas is recirculated partially or even totally. In this paper we will analyze a commercial gas turbine, comparing different fluids used as working and cooling fluids. The different nature of the fluids involved determines different external heat transfer coefficients (external blade surface), different internal heat transfer coefficients (cooling cavities) and affects film cooling effectiveness, resulting in a change of the blade temperature distribution. Results show that the presence of steam and CO2 could determine a non negligible effect on blade temperature. This means that cooling systems need a deep investigation. A redesign of the cooling system could be required. In particular, results show that steam is well suited for internal cooling, whereas CO2 is better used in film cooling systems.
Polyunsaturated Dicarboxylate Tethers Connecting Dimolybdenum Redox and Chromophoric Centers:  Syntheses, Structures, and Electrochemistry (2003)

Compounds with two quadruply bonded Mo(2)(4+) units, Mo(2)(DAniF)(3) (DAniF = N,N '-di-p-anisylformamidinate), linked by unsaturated dicarboxylate dianions of various lengths have been prepared and their spectroscopic and electrochemical properties studied. As identified by the dicarboxylate linkers, these compounds are maleate (7), allene-1,3-dicarboxylate (10), cis,cis-muconate (11), trans,trans-muconate (12), octa-2,4,6-trans,trans,trans-hexatriene-1,8-dioate (tamuate, 13), and deca-2,4,6,8-trans,trans,trans,trans-octatetraene-1,10-dioate (texate, 14). The latter three molecules complete the five-membered (all trans) series [Mo(2)(DAniF)(3)](O(2)C(CH=CH)(n)CO(2))[Mo(2)(DAniF)(3)] (n = 0-4). Several unsymmetrical paddlewheel compounds of the type Mo(2)(DAniF)(3)(O(2)CX) (X = C triple bond CH (3), CH=CH(2) (4), (E)-CH=CH-CH=CH(2) (5)) have also been prepared for comparison to the molecules in which there are linked Mo(2) units. The precursors [Mo(2)(DAniF)(3)(MeCN)(2)](BPh(4)), [1]BPh(4), and Mo(2)(DAniF)(3)Cl(MeCN) (2) have also been isolated and characterized. The structures of all new molecules have been established by X-ray crystallography, including the methyl esters of various carboxylates used as ligands. All of the linked molecules have been examined by cyclic and differential pulse voltammetry, and deltaE(1/2) values, the separation between successive Mo(2)(4+)/Mo(2)(5+) oxidations, have been determined. Those compounds with highly unsaturated, fully conjugated linkers demonstrate electrochemical communication from end-to-end that is more persistent over distance than is accounted for by an electrostatic interaction alone, implying that the pi system of these dicarboxylate linkers is mediating communication. In the series [Mo(2)(DAniF)(3)](O(2)C(CH=CH)(n)CO(2))[Mo(2)(DAniF)(3)] (n = 0-4), the first oxidation potential shifts progressively to less positive values due to an increasing contribution of the polyolefinic alpha,omega-dicarboxylate to the molecular orbital undergoing oxidation. This first oxidation potential approaches a limiting value of 63 mV (vs Ag/AgCl) as n becomes infinitely long. Compound 11 can be photoisomerized to 12 in a process that is affected by the presence of the Mo(2)(4+) units, as the analogous rearrangement of dimethyl cis,cis-muconate is faster.
HU-211, a nonpsychotropic cannabinoid, rescues cortical neurones from excitatory amino acid toxicity in culture (1993)

The present study examined potential neuroprotective effects of HU-211, a synthetic non-psychotropic cannabinoid with non-competitive NMDA antagonist properties on neurones exposed to various excitotoxins in culture. HU-211 was found to protect neurones from NMDA and quisqualate-induced toxicity but not that produced by AMPA or kainate. NMDA-mediated neurotoxicity was blocked by HU-211 in a dose dependent manner with an EC50 = 3.8 +/- 0.9 microM. Radioligand binding studies have shown that HU-211 inhibits the binding of [3H]MK-801 to rat forebrain membranes (KI = 11.0 microM +/- 1.323) in a competitive manner, but was unable to displace [3H]kainate and [3H]AMPA binding. These data suggest that the neuroprotective activity of HU-211 is directly associated with the NMDA receptor channel and possibly with the quisqualate receptor of the metabotropic class. Thus, HU-211 appears to act as an NMDA open channel blocker and shows promise as a novel neuroprotectant for clinical use.
The Fission Yeast <i>pmk1<sup>+</sup></i> Gene Encodes a Novel Mitogen-Activated Protein Kinase Homolog Which Regulates Cell Integrity and Functions Coordinately with the Protein Kinase C Pathway (1996)

We have isolated a gene, pmk1+, a third mitogen-activated protein kinase (MAPK) gene homolog from the fission yeast Schizosaccharomyces pombe. The predicted amino acid sequence shows the most homology (63 to 65% identity) to those of budding yeast Saccharomyces Mpk1 and Candida Mkc1. The Pmk1 protein contains phosphorylated tyrosines, and the level of tyrosine phosphorylation was increased in the dsp1 mutant which lacks an attenuating phosphatase for Pmk1. The level of tyrosine phosphorylation appears constant during hypotonic or heat shock treatment. The cells with pmk1 deleted (delta pmk1) are viable but show various defective phenotypes, including cell wall weakness, abnormal cell shape, a cytokinesis defect, and altered sensitivities to cations, such as hypersensitivity to potassium and resistance to sodium. Consistent with a high degree of conservation of amino acid sequence, multicopy plasmids containing the MPK1 gene rescued the defective phenotypes of the delta pmk1 mutant. The frog MAPK gene also suppressed the pmk1 disruptant. The results of genetic analysis indicated that Pmk1 lies on a novel MAPK pathway which does not overlap functionally with the other two MAPK pathways, the Spk1-dependent mating signal pathway and Sty1/Spc1/Phh1-dependent stress-sensing pathway. In Saccharomyces cerevisiae, Mpk1 is involved in cell wall integrity and functions downstream of the protein kinase C homolog. In contrast, in S. pombe, Pmk1 may not act in a linear manner with respect to fission yeast protein kinase C homologs. Interestingly, however, these two pathways are not independent; instead, they regulate cell integrity in a coordinate manner.
In Vitro (CTG)·(CAG) Expansions and Deletions by Human Cell Extracts (2002)

The mechanism of disease-associated (CTG)*(CAG) expansion may involve DNA replication slippage, replication direction, Okazaki fragment processing, recombination, or repair. A length-dependent bias for expansions is observed in humans affected by a trinucleotide repeat-associated disease. We developed an assay to test the effect of replication direction on (CTG)*(CAG) instabilities incurred during in vitro (SV40) DNA replication mediated by human cell extracts. This system recapitulates the bias for expansions observed in humans. Replication by HeLa cell extracts generated expansions and deletions that depended upon repeat tract length and the direction of replication. Templates with 79 repeats yielded predominantly expansions (CAG as lagging strand template) or predominantly deletions (CTG as lagging strand template). Templates containing 17 repeats were stable. Thus, replication direction determined the type of mutation. These results provide new insights into the orientation of replication effect upon repeat stability. This system will be useful in determining the contribution of specific human proteins to (CTG)*(CAG) expansions.
Selective stimulation, suppression, or blockade of the atrioventricular node and His bundle. (1970)

Abstract In 52 dogs anesthetized with sodium pentobarbital, the septal artery and the atrioventricular (A-V) node artery were cannulated for direct perfusion of the His bundle and A-V node. Advantages of this method include preservation of the heart in situ with its normal innervation intact and the production of localized effects by injection of small (2 ml.) amounts of test substances. One disadvantage is the unavoidable simultaneous perfusion of ventricular myocardium. Utilizing this method, we produced transient A-V block with acetylcholine, 0.1 to 1.0 μg per milliliter, and prolonged block with neostigmine, 10 μg per milliliter; this effect is reversed and blocked with local administration of atropine, 10 μg per milliliter. Direct perfusion of the septal artery or the A-V-node artery with norepinephrine or isoproterenol, 0.1 μg per milliliter, produced an A-V junctional tachycardia which could be blocked with propranolol, 10 μg per milliliter; more prolonged tachycardia was produced with tyramine, 10 μg per milliliter, or guanethidine, 100 μg per milliliter, and could be transiently reversed with acetylcholine, which also caused transient simultaneous A-V block. These experiments demonstrate the specific production and precise control of transient or prolonged A-V block or junctional tachycardia in the intact heart in situ.
Effect of strain on the threshold current of GaInP/AlGaInP quantum well lasers emitting at 633 nm (2005)

For the first time the performance of visible lasers operating at 633 nm is reported as function of the amount of applied strain. Varying the strain between /spl delta/a/a = -1 % and /spl delta/a/a = + 1 % two minima in threshold current density have been found and are explained.