491   Experimental research of TiO2 micro-particles production by supercritical hydrolysis Experimental research of TiO2 micro-particles production by supercritical hydrolysis    2011 Because of the excellent specialties and wide uses in many fields, TiO2 has a promising future. Supercritical hydrolysis is a new method to produce micro-particles. TiO2 micro-particles were successfully obtained through this method. The resulting samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and particle-size analyzer. The influences of process parameters, including pressure, temperature, total flux and ratio of branch flux, on particle size were inve... 查看全文

492   Micro-particles temperature measurements in a plasma jet Micro-particles temperature measurements in a plasma jet    2000 The temperature of microparticles heated in a plasma jet are measured by high spatial resolution spectroscopy. The particles radiation is registered from 400-600 nm because using a wider interval may increase the error due to the neglect of the spectral dependence of Ε. The reference wavelength λ0 is chosen, and the experimental data obtained are processed in accordance with Z = [(λ0/λ)-1]-1, Y = (B/λ0){5ln[(1/Z)+1]-ln[E(λ, T)/E(λ0, T)]}-1, and Y... 查看全文

493   Trichogerminoma Trichogerminoma    2006 We report 14 cases of trichogerminoma, a rare form. of cutaneous adnexal neoplasm, derived from hair germ epithelium. The neoplasm occurred in 9 men and 5 women. Their ages ranged from 16 to 73 years (median 53 years). The tumors were slow growing, asymptomatic dermal or subcutaneous nodules, located on the head and neck (6), trunk (4), extremities (2) and hip (1), with no distinguishing clinical features. Histologically, trichogerminomas were characterized by sharply circumscribed, pseudo-encap... 查看全文

494   Energy Losses from Furnaces and the Concept of Efficiency Energy Losses from Furnaces and the Concept of Efficiency Victor Paschkis    2006 Abstract not available. 查看全文

495   The uptake of tritiated thymidine by the dorsal epidermis of the fetal and newborn rat† The uptake of tritiated thymidine by the dorsal epidermis of the fetal and newborn rat†    2005 The dorsal epidermis of fetal and newborn rats was examined to determine the difference in ability of the basal cells to bind tritiated thymidine during different stages of epidermal morphogenesis. Five rats were examined for each time period from the eleventh day of gestation to the fifth day after birth. The number of labeled cells in 5000 basal cells was counted and expressed as a percentage. The labeling index is ∼ 10% from the eleventh to the fifteenth fetal day. It increases to ∼ 3... 查看全文

496   Temperature and magnetic dual responsive microparticles for DNA separation Temperature and magnetic dual responsive microparticles for DNA separation    2011 The use of solid support in DNA separation from biological mixtures for diagnostics offers great potential for developing versatile separating tools. Although different polymer materials have been developed and studied for DNA separation, the application of such non-magnetic particles for DNA separation has remained limited. In this work, we describe the adsorption and desorption behavior. of DNA on the temperature sensitive poly(N-isopropylacrylamide-co-aminoethylmethacrylate) (PNIPAM-co-AEMH) ... 查看全文

497   Temperature dependence of fracture toughness of silica/epoxy composites: Related to microstructure of nano- and micro-particles packing Temperature dependence of fracture toughness of silica/epoxy composites: Related to microstructure of nano- and micro-particles packing    2008 Temperature dependence of the fracture toughness of epoxy composites reinforced with nano- and micro-silica particles was evaluated. Epoxy composites containing varied composition ratios ΦSP of spherical nano- and micro-silica particles, 240 nm and 1.56 μm, were prepared at a fixed volume fraction (VP = 0.30). The thermo-viscoelasticity and fracture toughness of the composites and neat epoxy were measured at 143 K, 185 K, 228 K, 296 K, 363 K, and 399 K. Experimental results revealed that ... 查看全文

498   One-dimensional growth of zinc oxide nanostructures from large micro-particles in a highly rapid synthesis One-dimensional growth of zinc oxide nanostructures from large micro-particles in a highly rapid synthesis    2011 Large and irregularly-shaped zinc oxide (ZnO) micro-particles commonly found in a high-temperature vapor-phase process known as the catalyst-free combust-oxidized mesh (CFCOM) process, play a crucial role as nucleation hosts for ZnO one-dimensional (1D) nanostructures, especially nanometric wires and rods. Nanowires and nanorods tend to grow from the hillocks of the large micro-particles whereby these hillocks serve as nucleation sites for the acicular structures. Nanowires with aspect ratios ex... 查看全文

499   Preparation of erythromycin micro-particles by supercritical assisted atomization Preparation of erythromycin micro-particles by supercritical assisted atomization    2007 Supercritical assisted atomization (SAA) is a new technique developed recently for producing nano-and micro-particles, and it has promising potentials in pharmaceutical micronization. An experimental apparatus for SAA process was set up, and the experiments for producing erythromycin micro-particles from erythromycin-ethanol-CO2 system by SAA process were conducted. The effects of process parameters, such as the pressure and the temperature of the saturator, the inlet flow rate and inlet solutio... 查看全文

500   Protein hydrolysates of castor bean seed and cottonseed meals Protein hydrolysates of castor bean seed and cottonseed meals D. A. Khashimov, A. M. Érmatov;P. Kh. Yuldashev    1998 The processes involved in the hydrolysis of the proteins of the toxic seed meals of the castor-oil plant and the cotton plant with hydrochloric acid have been studied. The optimum conditions of hydrolysis, at which the yield of desired product amounts to about 40%, have been established. The use of activated carbon and the cation-exchange resin KU-2×8 have enabled a hydrolysate containing 80–85% of amino acids to be obtained. 查看全文

501   A comparative study on the tribological behaviour of hexagonal boron nitride (h-BN) as lubricating micro-particles-An additive in porous sliding bearings for a car clutch A comparative study on the tribological behaviour of hexagonal boron nitride (h-BN) as lubricating micro-particles-An additive in porous sliding bearings for a car clutch    2009 The present paper is based on experimental studies of self-lubricated porous sliding bearings with hexagonal boron nitride (h-BN) as an additive. The friction coefficients of powder matrix lubricated by (h-BN + oil) were measured at varying loads of 1.05-2.0 MPa and sliding speeds of 1.35 and 2.5 m/s. The results are discussed in the form. of performance characteristics such as the coefficient of friction, bearing temperature, and load-carrying capacity. The micro-particles of the h-BN additive ... 查看全文

502   Synthesis and optical properties of a crosslinkable polymer system containing tricyanofuran-based chromophores with excellent electro-optic activity and thermal stability Synthesis and optical properties of a crosslinkable polymer system containing tricyanofuran-based chromophores with excellent electro-optic activity and thermal stability Enrique Geffroy and L. Gary Leal    2012 Crosslinkable polymers with side-chain systems were investigated in order to increase the content of nonlinear optical chromophores and improve the stability of oriented chromophores. A series of crosslinkable copolymers having varying concentrations of chromophores with tricyanofuran as an acceptor were successfully synthesized and characterized. The crosslinked electro-optic (EO) polymers revealed the highest EO coefficient (r33) of 47.0 pm V−1 at 1310 nm, which was similar to r33 of unc... 查看全文

503   Room-temperature synthesis and characterization of cross-like Pr 2(C2O4)3·10H2O micro-particles Room-temperature synthesis and characterization of cross-like Pr 2(C2O4)3·10H2O micro-particles    2010 Cross-like Pr2(C2O4)3· 10H2O micro-particles were synthesized through a simple precipitation method at room temperature. The products were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FESEM), thermogravimetry-differential thermal analysis (TG-DTA) and photoluminescence (PL). The possible formation mechanism of the cross-like Pr2(C2O4)3· 10H2O micro-particles was discussed, and Pr6O11 with similar morpho... 查看全文

504   Allosteric Control of cAMP Receptor Binding Dynamics Allosteric Control of cAMP Receptor Binding Dynamics Dietmar Porschke*    2012 The intrinsic fluorescence of the cyclic AMP receptor is a sensitive indicator of the reaction with DNA, but signals are perturbed by a photoreaction. A ratio procedure is shown to be useful for correction. The reaction of the protein with DNA indicated by corrected transients extends over a broad time range not only at low salt concentrations but also at physiological salt concentrations. The initial binding step can be recorded preferentially at low salt pH 7 and is shown to be very similar fo 查看全文

505   Effect of Temperature on the Ion-Solvent Interactions in Water-Urea Mixtures from Volume Data Effect of Temperature on the Ion-Solvent Interactions in Water-Urea Mixtures from Volume Data Jian Zhang, Wenfei Li, Jun Wang, Meng Qin, Lei Wu, Zhiqiang Yan, Weixin Xu, Guanghong Zuo and Wei Wa    2010 Densities of solutions of NaCl, NaI, KCl, KBr, and CsCl in three mixtures containing 10 wt% (3.22 mol%), 20 wt% (6.98 mol%) and 30 wt% (11.39 mol%) urea in water have been measured at 333.15 K using the magnetic float densitometer. The apparent molal volumes of the electrolytes calculated from the experimental data were extrapolated to infinite dilution by means of the Masson equation. The ionic partial molal volumes of alkali-metal and halide ions have been estimated. The partial molal volumes ... 查看全文

506   Combined Bowen disease and extramammary Paget disease Combined Bowen disease and extramammary Paget disease Masaaki Matsumoto, Mayuko Ishiguro, Fuminori Ikeno, Mitsunori Ikeda, Reiko Kamijima, Yasuhiko Hirata    2007 Background: The histological resemblance between extramammary Paget disease and Bowen disease has been described since Bowen’s original article was published in 1912. 查看全文

507   Ein Meß- und Auswerteverfahren zur Bestimmung der ungesttigten Wasserleitfhigkeit an Böden in situ Ein Meß- und Auswerteverfahren zur Bestimmung der ungesttigten Wasserleitfhigkeit an Böden in situ Friedrich Schiel    2007 查看全文

508   Photochemically Generated Transients from κ2- and κ3-Triphos Derivatives of Group 6 Metal Carbonyls and Their Reactivity with Olefins Photochemically Generated Transients from κ2- and κ3-Triphos Derivatives of Group 6 Metal Carbonyls and Their Reactivity with Olefins Samuel J. Kyran†, Sohail Muhammad‡, Matthew Knestrick†, Ashfaq A. Bengali*‡, and Donald J. Darensbou    2012 The synthesis and characterization of (κ2-Triphos)M(CO)4 derivatives, where M = Mo, W and Triphos = MeC(CH2PPh2)3, are reported. Photolyses of these metal carbonyls in dichloromethane or CO2-saturated dichloromethane readily afford the (κ3-Triphos)M(CO)3 complexes with no evidence of significant solvent or carbon dioxide interactions with the site vacated by CO. However, in the presence of 1-hexene a transient (κ2-Triphos)M(CO)3(1-hexene) adduct was observed, which subsequently releases the olef 查看全文

509   Über Kapillaritt und Tropfengröße; Nachtrag Über Kapillaritt und Tropfengröße; Nachtrag Friedrich Schiel    2006 查看全文

510   Contents: Ann. Phys. 6/2009 Contents: Ann. Phys. 6/2009 Emidio Capriotti and Mario Compiani    2009 查看全文

511   Die Messung des geschlossenen und offenen Kapillarsaumes in natürlich gelagerten Böden Die Messung des geschlossenen und offenen Kapillarsaumes in natürlich gelagerten Böden JUuml;RGEN R. SCHOPPER    2007 查看全文

512   Notiz über den Kapillardruck in Gasblasen Notiz über den Kapillardruck in Gasblasen JUuml;RGEN R. SCHOPPER    2006 查看全文

513   Über Kapillarittskonstanten und spezifische Gewichte von Salzen beim Schmelzpunkte, und Methode einer kapillaren Löslichkeitsbestimmung Über Kapillarittskonstanten und spezifische Gewichte von Salzen beim Schmelzpunkte, und Methode einer kapillaren Löslichkeitsbestimmung JUuml;RGEN R. SCHOPPER    2004 查看全文

514   Scherfestigkeit durch Kapillaritt in unzementierten ungesttigten bindigen Böden Scherfestigkeit durch Kapillaritt in unzementierten ungesttigten bindigen Böden JUuml;RGEN R. SCHOPPER    2004 Die Scherfestigkeit ungesttigter Böden ist infolge der wirkenden Kapillarkrfte größer als im gesttigten Zustand. Ein Umstand, der die Sicherheit geotechnischer Konstruktionen in oft unbekanntem Maße erhöht. Vorhandene Kapillarspannungen können über die pF-Kurve (Sttigungs-Wasserspannungs-Beziehung) abgeschtzt werden. In diesem Beitrag wird eine Möglichkeit angegeben, die Scherfestigkeit über den gesamten Bereich möglicher Wasserspannungen &ndas... 查看全文

515   Academy Academy Christoph Haag, Martin Rumori, Ludwig Zeller, Franziska Windisch    0 Offener Schaltkreis (Open Circuit) [1] is an interactive sound installation developed by students at the Academy of Media Arts, Cologne. It mainly focuses on openness, which applies to all facets such as optical appearance, the interface given to the user, the technical tools being used and the collaborative style. in which the installation has been developed. In this paper, we will discuss the aesthetical and technical issues of our sound installation Offener Schaltkreis. 查看全文

516   Durchströmung und Kapillaritt von Schüttgütern Durchströmung und Kapillaritt von Schüttgütern JUuml;RGEN R. SCHOPPER    2004 Bei einer Reihe verfahrenstechnischer Prozesse — beispielsweise beim Entwssern und Filtern körniger Substanzen — sind Kapillaritt und Permeabilitt die physikalisch bedeutsamen Beurteilungsmerkmale. Beide sind wesentlich von der Zwischenraumgeometrie des betrachteten Schüttgutes bestimmt. Versuchsergebnisse zeigen, daß das Batelsche Modellbild für die Zwischenraumgeometrie seine Gültigkeit auch bei sehr feinen Körnungen unter 1 μm Korngröße... 查看全文

517   Executive Overview The Joint Study into Debit and Credit Card Schemes in Australia (A Study of Interchange Fees and Executive Overview The Joint Study into Debit and Credit Card Schemes in Australia (A Study of Interchange Fees and Unknown Authors    0 Access) discusses many aspects of the 4-party credit card systems operating in Australia and around the world. It claims that these systems have several socially undesirable attributes. In particular, the Joint Study asserts that 4-party card systems: are more socially costly than debit cards; have unnecessarily high interchange fees; result in a subsidy being paid to non-revolving users of credit cards from consumers using other payment methods; and ? have unnecessarily restrictive membership r... 查看全文

518   The Iraqi Insurgency Movement THE IRAQI INSURGENT MOVEMENT The Iraqi Insurgency Movement THE IRAQI INSURGENT MOVEMENT Sgt Christopher Alexander, Cpt Charles Kyle, Maj William, S. Mccallister    0 Iraqi Insurgency Movement Issue: A successful insurgency is preventing the Coalition Provisional Authority (CPA) and Combined Joint Task Force –7 (CJTF-7) from providing a safe and secure environment in Iraq. Discussion: The reason that CPA initiatives have not yet caught the imagination or secured the participation of the Iraqi people is due to cultural, not ideological factors. Iraq’s cultural environment represents a challenge not easily mastered by Western ideological models and crisis manag 查看全文

519   What’s Next? 11 What’s Next? 11 Barbara C. Cooper, Jane R. Frankenberger, Fred Whitford, Contaminant Source    0 Clean, safe drinking water is vital to our communities, to our economy, and to our health. If your ground water becomes contaminated, it may be lost forever as a water supply or may require very expensive treatment to remain usable. The best way you can ensure safe water, now and for the future, is to protect the area around your drinking water supply wells from potential hazards. This publication provides guidance for the public water supply operators and local wellhead protection planning team 查看全文

520   Nutzung von stabilen Agglomeraten zur Wasserbindung Nutzung von stabilen Agglomeraten zur Wasserbindung JUuml;RGEN R. SCHOPPER    2007 Es wird die Möglichkeit des gezielten Aufbaus stabiler, poröser und kapillarreicher Strukturen aus Gewürzpulver zur Steigerung des Wasserbindevermögens (WBV) durch verschiedene Verfahren der Agglomeration untersucht und deren Grenzen aufgezeigt. Ziel ist die Reststoffvermeidung und damit die Effizienzsteigerung bei der Verarbeitung von Gewürzen im Lebensmittelbereich. Von besonderer Bedeutung sind dabei die Art und Ausprgung intrapartikularer Bindungskrfte sowie deren Po... 查看全文

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