TY  - JOUR
A1  - Wang, Ren-Qi
A1  - Druckenmüller, Katharina
A1  - Elbers, Gereon
A1  - Guenther, Klaus
A1  - Croué, Jean-Philippe
T1  - Analysis of aquatic-phase natural organic matter by optimized LDI-MS method
JF  - Journal of mass spectrometry
N2  - The composition and physiochemical properties of aquatic-phase natural organic matter (NOM) are most important problems for both environmental studies and water industry. Laser desorption/ionization (LDI) mass spectrometry facilitated successful examinations of NOM, as humic and fulvic acids in NOM are readily ionized by the nitrogen laser. In this study, hydrophobic NOMs (HPO NOMs) from river, reservoir and waste water were characterized by this technique. The effect of analytical variables like concentration, solvent composition and laser energy was investigated. The exact masses of small molecular NOM moieties in the range of 200–1200 m/z were determined in reflectron mode. In addition, spectra of post-source-decay experiments in this range showed that some compounds from different natural NOMs had the same fragmental ions. In the large mass range of 1200–15 000 Da, macromolecules and their aggregates were found in HPO NOMs from natural waters. Highly humic HPO exhibited mass peaks larger than 8000 Da. On the other hand, the waste water and reservoir water mainly had relatively smaller molecules of about 2000 Da. The LDI-MS measurements indicated that highly humic river waters were able to form large aggregates and membrane foulants, while the HPO NOMs from waste water and reservoir water were unlikely to form large aggregates. Copyright © 2014 John Wiley & Sons, Ltd.
Y1  - 2014
U6  - http://dx.doi.org/10.1002/jms.3321
SN  - 1096-9888
VL  - 49
IS  - 2
SP  - 154
EP  - 160
PB  - Wiley
CY  - Bognor Regis
ER  - 
TY  - JOUR
A1  - Wang, Mao
A1  - Anik, Sabri
A1  - Frohberg, Martin G.
T1  - Experiments on the electrochemical determination of the sulphur activities in the system copper-silver at 1200°C
JF  - Zeitschrift für Metallkunde
Y1  - 1988
SN  - 0044-3093
VL  - 79
IS  - 5
SP  - 336
EP  - 339
ER  - 
TY  - JOUR
A1  - Wang, Mao
A1  - Anik, Sabri
A1  - Frohberg, Martin G.
T1  - Thermodynamics of oxygen in the lead-antimony system at 1173 K
JF  - Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik
Y1  - 1987
SN  - 0044-2658
VL  - 40
IS  - 6
SP  - 316
EP  - 319
ER  - 
TY  - JOUR
A1  - Wang, J.
A1  - Krause, R.
A1  - Block, K.
A1  - Musameh, M.
A1  - Mulchandani, A.
A1  - Schöning, Michael Josef
T1  - Flow injection amperometric detection of OP nerve agents based on organophosphorus-hydrolase biosensor detector
JF  - Biosensors & Bioelectronics. 18 (2003), H. 2-3
Y1  - 2003
SN  - 0956-5663
SP  - 255
EP  - 260
ER  - 
TY  - PAT
A1  - Wandrey, Christian
A1  - Biselli, Manfred
A1  - Schröder, Bernd
A1  - Schmoll, Hans-Joachim
T1  - Culturing cells on macroporous glass carriers coated with gelatin, extracellular matrix protein and stromal cells
Y1  - 1999
N1  - United States Patent 5,906,940 May 25, 1999
SP  - 1
EP  - 12
ER  - 
TY  - JOUR
A1  - Walther, T.
A1  - Gerthsen, D.
A1  - Carius, Reinhard
A1  - Förster, Arnold
T1  - AlAs/GaAs Quantum well structures: Interface properties investigated by high-resolution transmission electron microscopy and photoluminescence spectroscopy / T. Walther ; D. Gerthsen ; R. Carius ; A. Förster ...
JF  - Microscopy of semiconducting materials 1993 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 5 - 8 April 1993 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 134)
Y1  - 1993
SN  - 0-7503-0290-9
N1  - Royal Microscopical Society Conference on Microscopy of Semiconducting Materials <8, 1993, Oxford> ; MSM <8, 1993, Oxford>
SP  - 449
EP  - ff.
PB  - Institute of Physics
CY  - Bristol [u.a.]
ER  - 
TY  - CHAP
A1  - Walter, Peter
A1  - Elsen, Ingo
A1  - Müller, Holger
A1  - Kraiss, Karl-Friedrich
T1  - 3D object recognition with a specialized mixtures of experts architecture
T2  - IJCNN'99. International Joint Conference on Neural Networks. Proceedings
N2  - Aim of the AXON2 project (Adaptive Expert System for Object Recogniton using Neuml Networks) is the development of an object recognition system (ORS) capable of recognizing isolated 3d objects from arbitrary views. Commonly, classification is based on a single feature extracted from the original image. Here we present an architecture adapted from the Mixtures of Eaqerts algorithm which uses multiple neuml networks to integmte different features. During tmining each neural network specializes in a subset of objects or object views appropriate to the properties of the corresponding feature space. In recognition mode the system dynamically chooses the most relevant features and combines them with maximum eficiency. The remaining less relevant features arz not computed and do therefore not decelerate the-recognition process. Thus, the algorithm is well suited for ml-time applications.
Y1  - 1999
SN  - 0-7803-5529-6
U6  - http://dx.doi.org/10.1109/IJCNN.1999.836243
SN  - 1098-7576
N1  - Washington, DC 10-16.07.1999
SP  - 3563
EP  - 3568
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Walter, Michael
A1  - Gligorevic, Snjezana
A1  - Detert, Thorben
A1  - Schnell, Michael
T1  - UHF/VHF air-to-air propagation measurements
T2  - Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP) : 12 - 16 April 2010, Barcelona, Spain
Y1  - 2010
SN  - 978-1-4244-6431-9 ; 978-84-7653-472-4
SP  - 1
EP  - 5
ER  - 
TY  - JOUR
A1  - Waller, Mark P.
A1  - Braun, Heiko
A1  - Hojdis, Nils
A1  - Bühl, Michael
T1  - Geometries of Second-Row Transition-Metal Complexes from Density-Functional Theory
JF  - Journal of Chemical Theory and Computation
Y1  - 2007
U6  - http://dx.doi.org/10.1021/ct700178y
SN  - 1549-9626
VL  - 3
IS  - 6
SP  - 2234
EP  - 2242
ER  - 
TY  - CHAP
A1  - Walk-Lauffer, Bernd
A1  - Raupach, Michael
A1  - Dilger, Klaus
A1  - Böhm, Stefan
A1  - Mundt, F.
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
T1  - The interconnection between inner filaments of textile reinforcement by means of polymer modified concrete
T2  - Proceedings of the First International Conference on Innovative Materials and Technologies for Construction and Restoration : : Lecce, June 6 - 9, 2004 / Università degli Studi di Lecce / ed. Antonio La Tegola. Vol. 1: Key-notes, materials, construction
Y1  - 2004
SP  - 150
EP  - 159
PB  - Liguori
CY  - Napoli
ER  -