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Sample records for kruus kalle tammeme

  1. Wolof Syllable Structure: Evidence from a Secret Code.

    ERIC Educational Resources Information Center

    Ka, Omar

    A structural analysis provides new evidence concerning the internal structure of the syllable in Wolof, a West African language, through examination of the secret code called Kall, spoken mainly in Senegal's Ceneba area. It is proposed that Kall is better described as involving primarily a reduplication of the prosodic word. The first section…

  2. Gravitational Analysis of the In-Band Wormhole Phenomenon

    DTIC Science & Technology

    2006-11-01

    1 GRAVITATIONAL ANALYSIS OF THE IN-BAND WORMHOLE PHENOMENON Richard Gopaul1, Peter Kruus2, Dan Sterne2, Brian Rivera1 1U.S. Army Research...Laboratory Adelphi, MD, 20783 USA 2SPARTA, Inc. Columbia, MD, 21046 USA ABSTRACT In-band wormhole attacks undermine routing by attracting...technique, first presented in [KSG06], for evaluating the effects of in-band wormhole attacks on OLSR routing. The gravitational analysis technique

  3. SPX: The Tenth International Conference on Stochastic Programming

    DTIC Science & Technology

    2004-10-01

    Dupa ~ovA, Yuri Ermoliev, Peter Kall, Wim Klein Haneveld, Kurt Marti, Andras Prdkopa, Steve Robinson, Terry Rockafellar, Roger Wets, and Bill Ziemba...Methods in SP Chair: Jitka Dupa ~ov6, Charles University ThB 9:45-10:45 Grand Ballroom Plenary Address: Werner Roemisch,Humboldt-University Berlin...Dantzig Kurt Marti Michael A.H. Dempster Andras Pr~kopa Jitka Dupa ~ov6 Stephen M.Robinson Yuri Ermoliev R. Tyrell Rockafellar Peter Kall Roger J-B Wets

  4. Metallography of maraging 350 steel

    SciTech Connect

    Hutson, S.M.; Merten, C.W.

    1987-01-01

    A technique for etching maraging 350 steel with Glyceregia is described. Surface activation procedures are integral to this technique. Microstructural features revealed by this technique are compared with those obtained with Kalling's reagent, Fry's reagent, and 5% Nital, three etchants commonly used to reveal microstructures of maraging steels. Features which may be simultaneously revealed using Glyceregia include prior austenite grain boundaries, martensitic structure, precipitates, titanium carbo-nitrides, and reverted austenite. The other etchants examined in this investigation typically reveal only a few of the microstructural features detailed above at any one time. 11 refs., 10 figs., 2 tabs.

  5. Editorial

    NASA Astrophysics Data System (ADS)

    2005-01-01

    COSIRES 2004 was the seventh conference in the series of international conferences on computer simulation of radiation effects in solids. This series started in 1992 in Berlin, Germany, and has since then been held biennially in Santa Barbara, USA; Guildford, UK; Okayama, Japan; State College, USA and Dresden, Germany. In 2004 we were pleased to host 104 persons in Helsinki. The strength of the conference series was reflected in that about half of the attendees were graduate students or young postdocs. The good attendance and success of the meeting was to a large extent made possible by generous financial support from the Academy of Finland, the University of Helsinki, the Vilho, Yrjö and Kalle Väisälä foundation and the Magnus Ehrnrooth foundation. I am very grateful for this support received, as well as the efforts put in for the meeting by the international advisory committee, program committee and most of all the local organizing committee. Without the help of all my 18 local co-organizers the meeting could not have ran as smoothly and pleasantly as it did.

  6. Hoechst and Wacker plan joint venture in PVC

    SciTech Connect

    Young, I.

    1992-12-02

    Restructuring of Europe's petrochemical industry has taken a further step with the announcement that Hoechst (Frankfurt) and Wacker Chemie (Munich) are planning a joint venture in polyvinyl chloride (PVC). The venture would include production, R D, sales and marketing, plus both companies' PVC recycling activities. However, their vinyl chloride monomer (VCM) plants, and Hoechst's Kalle PVC film business, have been left out. Erich Schnitzler, head of Hoechst's PVC business unit, does not anticipate problems with the European Community's competition directorate. We are both among the middle-sized European PVC producers, and together we would have a 9%-10% market share. Our joint venture would not limit competition. Both partners are hoping for approval from Brussels in first-quarter 1993. Hoechst has 255,000 m.t./year of PVC capacity at Gendorfand Knapsack, while Wacker has 365,000 m.t./year at Burghausen and Cologne. All the units, except Wacker's Cologne plant, are back integrated to VCM. The joint venture would buy VCM from the two parent companies and on the merchant market.

  7. Validation of a stochastic digital packing algorithm for porosity prediction in fluvial gravel deposits

    NASA Astrophysics Data System (ADS)

    Liang, Rui; Schruff, Tobias; Jia, Xiaodong; Schüttrumpf, Holger; Frings, Roy M.

    2015-11-01

    Porosity as one of the key properties of sediment mixtures is poorly understood. Most of the existing porosity predictors based upon grain size characteristics have been unable to produce satisfying results for fluvial sediment porosity, due to the lack of consideration of other porosity-controlling factors like grain shape and depositional condition. Considering this, a stochastic digital packing algorithm was applied in this work, which provides an innovative way to pack particles of arbitrary shapes and sizes based on digitization of both particles and packing space. The purpose was to test the applicability of this packing algorithm in predicting fluvial sediment porosity by comparing its predictions with outcomes obtained from laboratory measurements. Laboratory samples examined were two natural fluvial sediments from the Rhine River and Kall River (Germany), and commercial glass beads (spheres). All samples were artificially combined into seven grain size distributions: four unimodal distributions and three bimodal distributions. Our study demonstrates that apart from grain size, grain shape also has a clear impact on porosity. The stochastic digital packing algorithm successfully reproduced the measured variations in porosity for the three different particle sources. However, the packing algorithm systematically overpredicted the porosity measured in random dense packing conditions, mainly because the random motion of particles during settling introduced unwanted kinematic sorting and shape effects. The results suggest that the packing algorithm produces loose packing structures, and is useful for trend analysis of packing porosity.

  8. Spectrofluorimetric determination of melatonin in kernels of four different Pistacia varieties after ultrasound-assisted solid-liquid extraction

    NASA Astrophysics Data System (ADS)

    Oladi, Elham; Mohamadi, Maryam; Shamspur, Tayebeh; Mostafavi, Ali

    2014-11-01

    Melatonin is normally consumed to regulate the body's biological cycle. However it also has therapeutic properties, such as anti-tumor, anti-aging and protects the immune system. There are some reports on the presence of melatonin in edible kernels such as walnuts, but the extraction of melatonin from pistachio kernels is reported here for the first time. For this, the methanolic extract of pistachio kernels was exposed to gas chromatography/mass spectrometry analysis which confirmed the presence of melatonin. A fluorescence-based method was applied for the determination of melatonin in different extracts. When excited at λ = 275 nm, the fluorescence emission intensity of melatonin was measured at λ = 366 nm. Ultrasound-assisted solid-liquid extraction was used for the extraction of melatonin from pistachio kernels prior to fluorimetric determination. To achieve the highest extraction recovery, the main parameters affecting the extraction efficiency such as extracting solvent type and volume, temperature, sonication time and pH were evaluated. Under the optimized conditions, a linear dependence of fluorescence intensity on melatonin concentration was observed in the range of 0.0040-0.160 μg mL-1, with a detection limit of 0.0036 μg mL-1. This method was applied successfully for measuring and comparing the melatonin content in the kernels of four different varieties of Pistacia including Ahmad Aghaei, Akbari, Kalle Qouchi and Fandoghi. In addition, the results obtained were compared with those obtained using GC/MS. A good agreement was observed indicating the reliability of the proposed method.

  9. Spectrofluorimetric determination of melatonin in kernels of four different Pistacia varieties after ultrasound-assisted solid-liquid extraction.

    PubMed

    Oladi, Elham; Mohamadi, Maryam; Shamspur, Tayebeh; Mostafavi, Ali

    2014-11-11

    Melatonin is normally consumed to regulate the body's biological cycle. However it also has therapeutic properties, such as anti-tumor, anti-aging and protects the immune system. There are some reports on the presence of melatonin in edible kernels such as walnuts, but the extraction of melatonin from pistachio kernels is reported here for the first time. For this, the methanolic extract of pistachio kernels was exposed to gas chromatography/mass spectrometry analysis which confirmed the presence of melatonin. A fluorescence-based method was applied for the determination of melatonin in different extracts. When excited at λ=275 nm, the fluorescence emission intensity of melatonin was measured at λ=366 nm. Ultrasound-assisted solid-liquid extraction was used for the extraction of melatonin from pistachio kernels prior to fluorimetric determination. To achieve the highest extraction recovery, the main parameters affecting the extraction efficiency such as extracting solvent type and volume, temperature, sonication time and pH were evaluated. Under the optimized conditions, a linear dependence of fluorescence intensity on melatonin concentration was observed in the range of 0.0040-0.160 μg mL(-1), with a detection limit of 0.0036 μg mL(-1). This method was applied successfully for measuring and comparing the melatonin content in the kernels of four different varieties of Pistacia including Ahmad Aghaei, Akbari, Kalle Qouchi and Fandoghi. In addition, the results obtained were compared with those obtained using GC/MS. A good agreement was observed indicating the reliability of the proposed method.

  10. The SOFAL aluminum-air battery for man-portable applications, topic area: Batteries for terrestrial applications

    SciTech Connect

    Karpinski, A.P.; Billingsley, J.; Alminauskas, V.; Stannard, J.; Halliop, W.V.

    1998-07-01

    In a cooperative effort, Alupower Inc., and Commonwealth Technology, Inc., recently completed the development of a Man-portable Aluminum-air hybrid battery for the Special Operations Forces (SOF) under a Phase 2 SBIR program. The Phase 1 SBIR program resulted in the design of a 12 and 24 vdc hybrid system consisting of an Aluminum-air semi-fuel cell and rechargeable secondary battery, interfaced with an electronics control module. This power source, named ``Special Operations Forces Aluminum-air'' or SOFAL , provides a cost effective approach for portable SOF electronic equipment. The Phase 2 development culminated in the delivery of five prototype units to the U.S. Army Special Operations Command (USASOC) for field evaluation. Due to the short window of opportunity available for the field trial, only one unit was activated. The evaluation was conducted at Camp McKall, N. Carolina. The evaluation plan was to operate SINCGARS (AN/PRC-119A) radio and a Digital Message Data Group (DMDG KY-879/P) off the SOFAL for one week. Another set of the same equipment would be powered by the standard issue BA-5590/U LiSO{sub 2} primary batteries as a control group. The exercise simulated a command post handling message traffic, both voice and data, 24 hours a day. At the conclusion of the field trials, the USASOC and Special Forces personnel were pleased with the concept. Based on actual mission scenarios, the present unit was acceptable ``as is'' for command post situations. They have a desire for a second smaller unit for field applications. Being a prototype, there were a few glitches but overall the evaluation was very positive, laying the ground work for Phase 3.

  11. Magnetic properties of Fe{sub 2}P-type R{sub 6}CoTe{sub 2} compounds (R=Gd-Er)

    SciTech Connect

    Morozkin, A.V.; Mozharivskyj, Yu; Svitlyk, V.; Nirmala, R.; Isnard, O.; Ritter, C.

    2010-06-15

    } phases (R=Gd-Er, space group P6-bar 2m) show ferromagnetic type ordering in the temperature range 14-220 K.All compounds demonstrate high-temperature ferromagnetic and low-temperature antiferromagnetic ordering.The magnetic entropy of Gd{sub 6}CoTe{sub 2} increases from {Delta}S{sub mag}=-4.5 J/kg K at 220 K up to {Delta}S{sub mag}=-6.5 J/kg K at 180 K for the field change {Delta}{mu}{sub 0}H=0-5 T.The R{sub 6}CoTe{sub 2} compounds exhibit the commensurate magnetic structures with wave vectors K{sub 0}=[0, 0, 0] and K{sub 1}=[1/2, 1/2, 1/2].

  12. EDITORIAL: Molecular switches at surfaces Molecular switches at surfaces

    NASA Astrophysics Data System (ADS)

    Weinelt, Martin; von Oppen, Felix

    2012-10-01

    electron-vibration coupling in transport through single moleculesKatharina J Franke and Jose Ignacio Pascual Vibrational heating in single-molecule switches: an energy-dependent density-of-states approachT Brumme, R Gutierrez and G Cuniberti Reversible switching of single tin phthalocyanine molecules on the InAs(111)A surfaceC Nacci, K Kanisawa and S Fölsch Tuning the interaction between carbon nanotubes and dipole switches: the influence of the change of the nanotube-spiropyran distanceP Bluemmel, A Setaro, C Maity, S Hecht and S Reich Carbon nanotubes as substrates for molecular spiropyran-based switchesE Malic, A Setaro, P Bluemmel, Carlos F Sanz-Navarro, Pablo Ordejón, S Reich and A Knorr Ultrafast dynamics of dithienylethenes differently linked to the surface of TiO2 nanoparticlesLars Dworak, Marc Zastrow, Gehad Zeyat, Karola Rück-Braun and Josef Wachtveitl Switching the electronic properties of Co-octaethylporphyrin molecules on oxygen-covered Ni films by NO adsorptionC F Hermanns, M Bernien, A Krüger, J Miguel and W Kuch STM-switching of organic molecules on semiconductor surfaces: an above threshold density matrix model for 1,5 cyclooctadiene on Si(100)K Zenichowski, Ch Nacci, S Fölsch, J Dokić, T Klamroth and P Saalfrank A switch based on self-assembled thymineFatih Kalkan, Michael Mehlhorn and Karina Morgenstern The growth and electronic structure of azobenzene-based functional molecules on layered crystalsJ Iwicki, E Ludwig, J Buck, M Kalläne, F Köhler, R Herges, L Kipp and K Rossnagel Voltage-dependent conductance states of a single-molecule junctionY F Wang, N Néel, J Kröger, H Vázquez, M Brandbyge, B Wang and R Berndt Molecules with multiple switching units on a Au(111) surface: self-organization and single-molecule manipulationJohannes Mielke, Sofia Selvanathan, Maike Peters, Jutta Schwarz, Stefan Hecht and Leonhard Grill Preparing and regulating a bi-stable molecular switch by atomic manipulationS Sakulsermsuk, R E Palmer and P A Sloan Mixed self

  13. FOREWORD: The 70th birthday of Professor Stig Stenholm The 70th birthday of Professor Stig Stenholm

    NASA Astrophysics Data System (ADS)

    Suominen, Kalle-Antti

    2010-09-01

    information [7] and in Stockholm he had, again, very successful postdocs such as Ulf Leonhardt. Finally, in 2005, Stig Stenholm retired, although he is still active, writing papers, taking part in conferences and making research visits. We honoured his 70th birthday at the CEWQO2009 conference, and hope that the future provides us with further opportunities for such events. Looking at the obituary of Dirk ter Haar, I see that his style with students reminds me of Stig's approach. In my opinion, Stig expects independence and initiative from a student, giving perhaps a broad topic in which the student is expected to find his or her own way, whilst working perhaps with a postdoc. Juha Javanainen has talked about the 'sink or swim' style (not referring to Stig, though). There is a famous series of children's books about Moomin trolls by Tove Jansson (another Swedish-speaking Finn like Stig). In one of them, the Moomin find in early spring a small flower in a patch of land uncovered by snow, pushing its way up. One of them wants to cover it against frost during the night, but another says 'Don't, it'll fare better later if it has some difficulties at first'. At CEWQO2009 Stig gave the full list of his finished PhD students: Rainer Salomaa (1973), Temba Dlodlo (1980), Juha Javanainen (1980), Markus Lindberg (1985), Matti Kaivola (1985), Birger Ståhlberg (1985), Kalle-Antti Suominen (1992), Mackillo Kira (1995), Päivi Törmä (1996), Asta Paloviita (1997), Patrik Öhberg (1998), Martti Havukainen (1999), Erika Andersson (2000), Pawel Piwnicki (2001), Åsa Larson (2001), Markku Jääskeläinen (2003), and Jonas Larson (2005). One should also mention Erkki Kyrölä, who eventually graduated at Rochester and Olli Serimaa, who never graduated but published some important early-stage laser cooling work. As a final note I must mention a passion that Stig and I share, namely books. I have nearly 400 professional physics and mathematics books, but I am certain that the size of Stig

  14. PREFACE: CEWQO Topical Issue CEWQO Topical Issue

    NASA Astrophysics Data System (ADS)

    Bozic, Mirjana; Man'ko, Margarita

    2009-09-01

    Kalle-Antti Suominen (http://www.congress.utu.fi/cewqo2009). The conference site is the new ICT building at chaired by Professor Kalle-Antti Suominen (http://www.congress.utu.fi/cewqo2009, www.congress.utu.fi/cewqo2009). The conference site was the new ICT building at the University of Turku campus area and the Viking Line ferry boat. Turku is the central city of historical Finland established on the mouth of the river Aura in the 13th century. It is the birthplace of Finnish academic life, since the Academy of Turku was established there in 1640. In 2011, Turku will be one of the cultural capitals of Europe. The city has a strong maritime tradition and is shielded from the Baltic sea by a large and beautiful archipelago. The 17th Central European Workshop on Quantum Optics will be held in 2010 in St Andrews, UK. It will be chaired by Professors Ulf Leonhardt and Natalia Korolkova from the School of Physics and Astronomy, University of St Andrews. St Andrews is home to the first university of Scotland, the third-oldest in the English-speaking world, and is the home of golf. It remains a charming, eccentric seaside town that is sufficiently secluded - the ideal place for a stimulating and thought-provoking conference.