Centrifugal Separation in Tube and Disc Geometries: Experiments and Theoretical Methods AuthorT. Detloff, D. Lerche Year2008 SourceActa Mechanica LanguageEnglish Pages83–94 LUMiFugeLFLUMiSizerLS 17 more The centrifugal separation of particles or droplets in dispersions is important in a variety of applicationse.g. mineral processingwater and waste water treatmentmultistep processing of nanomaterials and biotechnology. Despite numerous studies in the pastseparation processes of concentrated dispersions driven by gravity or centrifugal forces are not yet completely understood. Centrifuges can be subdivided into two categories: (1) centrifuges operating with tubes of constant cross section and (2) centrifuges operating with disc or cylinder rotors whose cross-sectional area changes with distance along the axis of rotation. This paper investigates the sedimentation process in centrifuges of these two categories experimentally and theoretically. Sample cells used in this studyleft rectangular cell with D = 2.2 mm optical path lengthmiddle rectangular cell with D = 5 mmright sector-shaped cell with D = 5 mmAnalytical centrifugation was used to investigate the sedimentation process in different cell geometries. The separation of monodisperse silica and polydisperse quartz dispersions was studied at different volume con- centrations using the STEP-technology. 391The suspensions were measured in sample cells with constant and increasing cross sections along the longitudinal centre of the cells. The progression of the supernatant-suspensions phase boundary during cen- trifugation in both cell types is experimentally the same. The same holds for concentration changes measured radially along the centre of the cells using either cell types. Howeverthe sediment height is smaller in the sector-shaped cells compared with that of the rectangular cells. It must be emphasized that in contrast to sedimentation under gravityfor a centrifugal field the initial concentration decreases with increasing radial position due to higher acceleration acting upon the particles. This applies even for monodisperse particle systems. The dilution is further elevated by particle motion on radial trajectories. sector shaped cellsrectangular shapedTube geometrySSCsector cellSektorzellen More details Edition201 Internal reference391 Open publication →
Charakterisierung interpartikulärer Kräfte für Fest/Flüssig-Trennverfahren mittels Analytischer Zentrifugation AuthorT. Sobisch, D. Lerche Year2008 SourceChemie Ingenieur Technik 2008 LanguageGerman Pages393-397 LUMiFugelfLUMiSizerLS More details Edition80 Internal reference400 Open publication →
COLLOIDAL DISKS, FABRICATION AND SELF-ASSEMBLING AuthorANDRES FERNANDO MEJIA MEJIA Year2008 SourceTrabajo de Grado presentado como requisito para optar al título de Ingeniero Químico LanguageEnglish Pages1-74 RED BLOOD CELL DISCOTIC SYSTEMLSLUMiSizerRBC colloidal disk system 1 more coin-like disk system More details LocationUNIVERSIDAD INDUSTRIAL DE SANTANDER FACULTAD DE INGENIERIAS FISICOQUÍMICAS ESCUELA DE INGENIERÍA QUÍMICA BUCARAMANGA, Colombia Internal reference940 Open publication →
Colloidal Dispersion of Nanosized Ceramic Powders and Assessment of Stability AuthorP. Bowen Year2008 SourceP. Bowen, EPFL, Madrid CdP -2008 LanguageEnglish Pages1-53 ceramicsLUMiSizerLS More details Internal reference134
Comparison of Physiological and Pathological blood standards (a) Accelerated phase separation by application of an Enhanced Settling Method (b) AuthorLUM Year2008 SourceLUM Application note Settling behaviour of reference materials for red blood cells (RBC) LanguageEnglish Pages1-3 LUMiReaderlr More details Edition2 LocationBerlin Internal reference100
Comparison of Shear and Compressive Yield Stress Ratio for Sewage Sludge and Inorganic Particulate Suspensions AuthorMaria Kristjansson Year2008 SourceProject report www LanguageEnglish Pages1-105 LUMiFugeLFLUMiSizerLS 2 more hindered settling function at volume fractions close to the gel pointSammenligning af kompressiblet and shear yield stress for kloak slam og uorganiske partikulære suspensioner More details LocationAalborg University, Faculties of Engineering, Science, and Medicine, Department of Biotechnology, Chemistry, and Environmental Engineering Internal reference195 Open publication →
Composite polypyrrole-containing particles and electrical properties of thin films prepared therefrom AuthorYan Lu, Andrij Pich, Hans-Juergen P. Adler, Geng Wang, David Rais d, Stanislav Nespurek Year2008 SourcePolymer LanguageEnglish Pages5002-501 Core-shellparticlesPolypyrroleElectrical 6 more conductivityLUMiFugeLFLUMiSizerLSstability More details Edition49 Internal reference184 Open publication →
Dekorative und kratzfeste UV-Lackschichten mit reduzierter Schichtdicke“ (Kurztitel: „UV-Deko“) AuthorU. Kraatz (BOSCH) N. Pietschmann, C. Brandt (iLF) O. Treichel, R. Cremer (IST) M. Kraft, K. Räbiger (LANKWITZER) W. Heering, S. Pieke (LTI) Year2008 SourceGemeinsamer Abschlussbericht, Teile I und II LanguageGerman Pages1-74 LUMiFugeLFLUMiSizerLS 2 more EmulsionStabilität More details LocationMagdeburg, Germany Internal reference563 Open publication →
Demixing Tester LUMiCheck (Brochure) AuthorLUM Year2008 SourceLUM LanguageEnglish Pages1-2 demixingtesterLUMiCheckLC 5 more stabilitydestabilizationdestabilisationparticledensity More details Edition08 LocationBerlin Internal reference37
Dental Adhesive Composition AuthorBlackwell, Gordon B. Year2008 SourceUnited States Patent Application 20080004365 LanguageEnglish Pages1-8 LUMiFugelfdentaladhesive 6 more DENTSPLY DETREY GMBH225LUMiSizerLSmedicalmedicine More details Internal reference225 Open publication →
Depletion flocculation characterised by multisample analytical centrifugation AuthorT. Sobisch, T. Detloff, D. Lerche Year2008 SourceParticulate Systems Analysis LanguageEnglish Pages1-5 LUMiSizerlsLUMiFugelf 5 more polymericadditivedepletionflocculationsedimentationthickener More details LocationStratford-upon-Avon, UK Internal reference91 Open publication →
Determination of particle density of polystyrene AuthorLUM Year2008 SourceLUM Application note Separation technique LanguageEnglish Pages1-3 LUMiChecklcdemixinghydrodynamic 1 more polymer More details Edition2 LocationBerlin Internal reference103
Directed Assembly of Colloidal Disk Particles by Gravitation and Flow Field AuthorZhengdong Cheng, Peng He, and Andres F. Mejia. Artie McFerrin Year2008 Sourceaiche.confex.com The 2008 Annual Meeting LanguageEnglish Pages1-11 LUMiSizerLSwaxdisk 4 more particlesphaseseparationsedimentation More details LocationPhiladelphia, PA, USA Internal reference503 Open publication →
Dispersion, agglomeration, and network formation of multiwalled carbon nanotubes in polycarbonate melts AuthorSven Pegel, Petra Pötschke, Gudrun Petzold, Ingo Alig, Sergej M. Dudkin, Dirk Lellinger Year2008 SourcePolymer LanguageEnglish Pages974-984 LUMiFugeLUMiSizerlslf 7 more multiwalledcarbonnanotubespolymer compositesmeltmixingcnt More details EditionVolume 49, Issue 4 Internal reference47 Open publication →
Easing formulation of emulsions using bottom focussed backscattering AuthorT. Sobisch, T. Detloff, D. Lerche Year2008 Source17th International Symposium on Surfactants in Solution on August 17-22, 2008 LanguageEnglish Pages1 LUMiChecklcsiliconeoil 4 more surfactantLUMiReaderlrlutensol More details LocationBerlin, Germany Internal reference105
Effect of formulation on the emulsion and whipping properties of recombined dairy cream AuthorKatrien van Lent, Cao Thu Le, Brecht Vanlerberghe, Paul Van der Meeren Year2008 SourceInternational Dairy Journal LanguageEnglish Pages1003-101 LUMiFugeLUMiSizerLSLF 1 more milk More details Edition18 Internal reference211 Open publication →
Effect of Stress State and Interfaial Characteristic on Biaxial Orientation and In-mold Printin of PC and PET Films AuthorMing-Yi Sung Year2008 SourceNational Taiwan University, Department of Polymer Engineering LanguageChinese Pages1- PhotoelasticityBOPETBOPCbiaxial 5 more orientationIMDLUMiSizerlsink More details Locationwww Internal reference181 Open publication →
Electrochemical pre-oxidation of a platinum / graphitized-carbon catalyst for improved PEM fuel cell performance AuthorJunliang Zhang, Frederick T. Wagner, Roland Koestner Year2008 Source214th ECS Meeting LanguageEnglish Pages1 LUMiSizerlsLUMiFugelf 5 more stabilityfuelcellresearchGeneral Motors Corporation USA More details EditionAbstract #1066 Internal reference108 Open publication →
Emulsifiers for Metalworking Fluids AuthorEvonik Industries Year2008 SourceBrochure LanguageEnglish Pages1-6 steam injectioncolloid stabilitylumsizerLUMiFuge 9 more LFLUMiSizerLSstabilityformulationemulsionscreeningoptimizationlubricant More details EditionApril 2008 Internal reference568 Open publication →
Evaluation of Long Term Stability of Model Emulsions by Multisample Analytical Centrifugation AuthorG. G. Badolato, F. Aguilar, H. P. Schuchmann, T. Sobisch, D. Lerche Year2008 SourceProgress in Colloid and Polymer Science LanguageEnglish Pages66-73 116Acceleratedstabilitytest 11 more DropletsizedistributionEmulsionShelflifeViscosityLUMiSizerlsLUMiFugelf More details EditionVolume 134 Internal reference116 Open publication →
