Omnigen:providing electricity, food preparation, cold storage and pure water using a variety of local fuels

We describe a polygeneration system that can run on neat plant oils, such as Jatropha and Pongamia, or standard diesel fuel. A prototype has been constructed using a compression ignition engine of 9.9 kW shaft output. It consumes 3 L/h of fuel and will produce 40 kg/h of ice by means of an adsorption refrigerator powered from the engine jacket heat. Steaming of rice, deep and shallow frying, and other types of food preparation heated by the exhaust gas have been demonstrated. In addition, the feasibility of producing distilled water by means of multiple-effect distillation powered by the engine waste heat is shown. Overall plant efficiency and potential savings in greenhouse gas emissions are discussed. © 2012 Elsevier Ltd.

True chemical shift correlation maps:a TOCSY experiment with pure shifts in both dimensions

Signal resolution in H NMR is limited primarily by multiplet structure. Recent advances in pure shift NMR, in which the effects of homonuclear couplings are suppressed, have allowed this limitation to be circumvented in 1D NMR, gaining almost an order of magnitude in spectral resolution. Here for the first time an experiment is demonstrated that suppresses multiplet structure in both domains of a homonuclear two-dimensional spectrum. The principle is demonstrated for the TOCSY experiment, generating a chemical shift correlation map in which a single peak is seen for each coupled relationship, but the principle is general and readily extensible to other homonuclear correlation experiments. Such spectra greatly simplify manual spectral analysis and should be well-suited to automated methods for structure elucidation. © 2010 American Chemical Society.

High rate growth of nanocrystalline diamond films using high microwave power and pure nitrogen/methane/hydrogen plasma

In this work, we investigate the impact of minute amounts of pure nitrogen addition into conventional methane/hydrogen mixtures on the growth characteristics of nanocrystalline diamond (NCD) films by microwave plasma assisted chemical vapour deposition (MPCVD), under high power conditions. The NCD films were produced from a gas mixture of 4% CH4/H2 with two different concentrations of N2 additive and microwave power ranging from 3.0 kW to 4.0 kW, while keeping all the other operating parameters constant. The morphology, grain size, microstructure and texture of the resulting NCD films were characterized by using scanning electron microscope (SEM), micro-Raman spectroscopy and X-ray diffraction (XRD) techniques. N2 addition was found to be the main parameter responsible for the formation and for the key change in the growth characteristics of NCD films under the employed conditions. Growth rates ranging from 5.4 μm/h up to 9.6 μm/h were achieved for the NCD films, much higher than those usually reported in the literature. The enhancing factor of nitrogen addition on NCD growth rate was obtained by comparing with the growth rate of large-grained microcrystalline diamond films grown without nitrogen and discussed by comparing with that of single crystal diamond through theoretical work in the literature. This achievement on NCD growth rate makes the technology interesting for industrial applications where fast coating of large substrates is highly desirable.

Inscription of a 300-nm-period nanostructure in a pure fused silica

Very recently, using tightly-focused femtosecond near-IR pulses, periodical sub-micron structures have been recorded [1,2]. Such microfabrication utilizes the multi-photon approach, which allows the inscription inside various non-photosensitive optical materials. The combination of multi-photon excitation with the point-by-point technique offers the great potential of creating non-uniform chirped gratings by controlling the rate of femtosecond pulses or the sample translation speed.

Molecular dynamics simulations of the adsorption and diffusion behavior of pure and mixed alkanes in silicalite

The adsorption and diffusion of mixed hydrocarbon components in silicalite have been studied using molecular dynamic simulation methods. We have investigated the effect of molecular loadings and temperature on the diffusional behavior of both pure and mixed alkane components. For binary mixtures with components of similar sizes, molecular diffusional behavior in the channels was noticed to be reversed as loading is increased. This behavior was noticeably absent for components of different sizes in the mixture. Methane molecules in the methane/propane mixture have the highest diffusion coefficients across the entire loading range. Binary mixtures containing ethane molecules prove more difficult to separate compared to other binary components. In the ternary mixture, however, ethane molecules diffuse much faster at 400 K in the channel with a tendency to separate out quickly from other components. © 2005 Elsevier Inc. All rights reserved.

Effects of hydrostatic tension on cleavage fracture of pure polycrystalline zinc

A study was made of notch effects on the cleavage fracture of polycrystalline zinc. It was seen that the nominal fracture stress of SENB specimens was independent of notch angle. The maximum tensile stress below the notch at fracture in SENB specimens was shown to be different from the tensile stress at fracture in tensile testpieces over a temperature range from −196 to −17°C. The notch root strain at fracture was found to be the same as the uniaxial tensile fracture strain over this temperature interval. These results were interpreted as showing the cleavage fracture of polycrystalline zinc to be shear-stress or initiation controlled, as predicted by Stroh's dislocation model of cleavage.

Tunable pure dispersion slope compensators realized with novel complex gratings

We present a novel tunable dispersion compensator that can provide pure slope compensation. In experiments, we achieve dispersion slope tuning range of +/-650ps/nm2with >0.9nm usable bandwidth.

Interregionalism

Interregionalism is deeply rooted in the foreign policies and external relations of the EU. Interregional cooperation today not only encompasses trade and aid but also political dialogue, cultural relations and even security cooperation. Although the EU’s official ambition has been to formalize and institutionalize its interregional relations with other regional bodies or organizations (so-called ‘pure interregionalism’), in practice there are a bewildering variety of interregional or group-to-group relations on display (Hänggi 2006; Baert et al. 2014). The EU is rapidly evolving as a global actor and while doing so it has been trying to export its own civilian and normative values. Interregionalism is an important tool in this process, contributing to the EU’s policy of fostering regionalism worldwide, not only in the triad (Europe, North America and East Asia) (De Lombaerde and Schulz 2009). Through interregionalism, the EU and its regional others enhance their presence, gain recognition, tighten institutional cohesion and define identities. Interregionalism, therefore, occupies a special position in the construction of regional actorness in global affairs (Wunderlich 2012). However, the link between interregionalism and regionalism is both complex and underexplored (Baert et al. 2014; Doidge 2007). Much depends on the type of interregional relations, and the balance of other forms of cooperation, which appears to play out differently in different regions. All this leads to a number of research questions that should be addressed by the academic literature, including is there a preference for interregional relations in EU’s foreign policy? If so, for what reason(s)? What are the consequences of such a preference? What is the role of interregionalism in the broader context of EU’s external policies? How are expressions of regionalism related to expressions of interregionalism? Does the sui generis character of the EU lead to a sui generis character of EU interregionalism? This chapter provides a general overview of the evolution of the field, the key conceptual and analytical debates, as well as the main research questions that drive the research agenda. Emphasis is also placed on identifying the main gaps in the field and suggesting directions.

Test, Teachers, Quorum (Pure Populations)

The “trial and error” method is fundamental for Master Minddecision algorithms. On the basis of Master Mind games and strategies weconsider some data mining methods for tests using students as teachers.Voting, twins, opposite, simulate and observer methods are investigated.For a pure data base these combinatorial algorithms are faster then manyAI and Master Mind methods. The complexities of these algorithms arecompared with basic combinatorial methods in AI. ACM Computing Classification System (1998): F.3.2, G.2.1, H.2.1, H.2.8, I.2.6.

Existence of Pure Strategy Nash Equilibrium in Bertrand-Edgeworth Oligopolies

This article is searching for necessary and sufficient conditions which are to be imposed on the demand curve to guarantee the existence of pure strategy Nash equilibrium in a Bertrand-Edgeworth game with capacity constraints.

Redefining economic reason

Despite of Martin Heidegger’s warning not modern technology but modern economizing destroys the Being. With its exclusive focus on profit-making modern economizing endangers the integrity and diversity of natural ecosystems, autonomy and culture of local communities, and chances of future generations for a decent life. This paper gives a critique of the profit principle and redefines economic rationality in a more holistic, substantive and humanistic form.

Alberto Girri, or poetry as hermeneutic reason

One of the main factors that makes the poetry of the Argentine Alberto Girri (1919–1991) a whole world of its own is my argument that in a fragmentary world like the present, poets search for a formal integrity which in the act of reading creates not only their own inner world but also the readers'. It is important to insist on this turning point in which most of the Symbolist work is circumscribed. Later, this would be of capital importance for the avant-garde as well as for the post-avant-garde: Mallarmé's Un coup de dés jamais n'abolira le hasard would make poetry something absolutely modern. An original distribution of the white and black opened a new space for the text, shifting the then dominant phonocentrism. My close reading of this author as well as the given theoretical frame avoids the failure into an instrumental use either of the page or of the writing but ignoring physical reciprocity. What follows is, that this “shift” privileged heightened vision over audition of the “musical score”. Thus, an intense materialization of the language is achieved that increases the anonymity of the text. ^ Following this new arrangement of words, so to speak, Girri's poetic work now drives deeply inside words in order to lend them dignity from meaning. I conclude that the best way to “render” this poetry with religious aim (L. “re-ligare” to bind the fragmented) is by way of the philosophy of language. I also propose that Girri's task as a translator, mainly from English poetry, represented—with Jorge Luis Borges—a paradigmatic shift in the Spanish American horizon which had been under “logocentric” French rule since the time of Independence. This seismic change of perspective in late Modernism and post-Modernism is represented by a radical screening of Romance rhetoric, it was a shift not only over the inherited mother tongue but over his own work which was increasingly moving towards transcendent and/or metaphysical poetry. ^ Therefore, I did find that Girri's poem was constructed as a mirror closely related to that which was represented in the angelological tradition. ^

Vacuum brazing of alumina ceramic to titanium for biomedical implants using pure gold as the filler metal

One of the many promising applications of metal/ceramic joining is in biomedical implantable devices. This work is focused on vacuum brazing of C.P titanium to 96% alumina ceramic using pure gold as the filler metal. A novel method of brazing is developed where resistance heating of C.P titanium is done inside a thermal evaporator using a Ta heating electrode. The design of electrode is optimized using Ansys resistive heating simulations. The materials chosen in this study are biocompatible and have prior history in implantable devices approved by FDA. This research is part of Boston Retinal implant project to make a biocompatible implantable device (www.bostonretina.org). ^ Pure gold braze has been used in the construction of single terminal feedthrough in low density hermetic packages utilizing a single platinum pin brazed to an alumina or sapphire ceramic donut (brazed to a titanium case or ferrule for many years in implantable pacemakers. Pure gold (99.99%) brazing of 96% alumina ceramic with CP titanium has been performed and evaluated in this dissertation. Brazing has been done by using electrical resistance heating. The 96% alumina ceramic disk was manufactured by high temperature cofired ceramic (HTCC) processing while the Ti ferrule and gold performs were purchased from outside. Hermetic joints having leak rate of the order of 1.6 × 10-8 atm-cc/ sec on a helium leak detector were measured. ^ Alumina ceramics made by HTCC processing were centreless grounded utilizing 800 grit diamond wheel to provide a smooth surface for sputtering of a thin film of Nb. Since pure alumina demonstrates no adhesion or wetting to gold, an adhesion layer must be used on the alumina surface. Niobium (Nb), Tantalum (Ta) and Tungsten (W) were chosen for evaluation since all are refractory (less dissolution into molten gold), all form stable oxides (necessary for adhesion to alumina) and all are readily thin film deposited as metals. Wetting studies are also performed to determine the wetting angle of pure gold to Ti, Ta, Nb and W substrates. Nano tribological scratch testing of thin film of Nb (which demonstrated the best wetting properties towards gold) on polished 96% alumina ceramic is performed to determine the adhesion strength of thin film to the substrate. The wetting studies also determined the thickness of the intermetallic compounds layers formed between Ti and gold, reaction microstructure and the dissolution of the metal into the molten gold.^

Les représentations de l'Église catholique par l'Église universelle de Dieu dans la revue La pure vérité de 1973-1995

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.