User profiles for Helmut Kaiser

Helmut Kaiser

Research Professor
Verified email at umsystem.edu
Cited by 4664

Shape and size of highly concentrated micelles in CTAB/NaSal solutions by small angle neutron scattering (SANS)

NC Das, H Cao, H Kaiser, GT Warren, JR Gladden… - Langmuir, 2012 - ACS Publications
Highly concentrated micelles in CTAB/NaSal solutions with a fixed salt/surfactant ratio of 0.6
have been studied using Small Angle Neutron Scattering (SANS) as a function of …

Behavioural response of the cladoceran Daphnia magna Straus to sublethal Copper stress—validation by image analysis

H Untersteiner, J Kahapka, H Kaiser - Aquatic toxicology, 2003 - Elsevier
In this study changes in the locomotory behaviour of the freshwater cladoceran Daphnia
magnaStraus were used as sublethal indicators of toxic copper (Cu) stress. The behavioural …

Measurement and characterization of the three-dimensional coherence function in neutron interferometry

H Rauch, H Wölwitsch, H Kaiser, R Clothier, SA Werner - Physical Review A, 1996 - APS
The spatial coherence function in all three orthogonal directions has been measured by
means of perfect crystal neutron interferometry. It has been demonstrated that the coherence …

Size and spatial distribution of micropores in SBA-15 using CM-SANS

…, IT Ghampson, YB Melnichenko, H Kaiser… - Chemistry of …, 2011 - ACS Publications
Diffraction intensity analysis of small-angle neutron scattering measurements of dry SBA-15
have been combined with nonlocal density functional theory (NLDFT) analysis of nitrogen …

Role of liquid vs vapor water in the hydrothermal degradation of SBA-15

…, IT Ghampson, YB Melnichenko, H Kaiser… - The Journal of …, 2012 - ACS Publications
The hydrothermal stability of mesoporous silica is critical for applications including catalytic
processing of biofuels due to the presence of significant amounts of water. We have …

Confinement-induced morphological changes in diblock copolymer films

N Koneripalli, R Levicky, FS Bates, J Ankner, H Kaiser… - Langmuir, 1996 - ACS Publications
We have studied the ordering behavior of a (diblock copolymer, poly(styrene-d 8 )−poly(2-vinylpyridine)
(dPS−PVP), in a confined geometry by neutron reflectivity, transmission electron …

Nanoporous polyurea from a triisocyanate and boric acid: A paradigm of a general reaction pathway for isocyanates and mineral acids

…, H Majedi Far, PM Rewatkar, H Kaiser… - Chemistry of …, 2016 - ACS Publications
Isocyanates react with carboxylic acids and yield amides. As reported herewith, however,
transferring that reaction to a range of mineral acids (anhydrous H 3 BO 3 , H 3 PO 4 , H 3 PO 3 …

Terrestrial and semiterrestrial Mermithidae

H Kaiser - Manual of agricultural nematology, 2020 - taylorfrancis.com
The terrestrial mermithids include species with a size from a few to 405 mm. The intraspecific
variability of the body size of terrestrial mermithids is also extraordinarily large. Most of the …

Patterns of creatine kinase release during acute myocardial infarction after nonsurgical reperfusion: comparison with conventional treatment and correlation with …

…, D von Hardenberg, M Cohen, H Kaiser… - Journal of the American …, 1984 - Elsevier
Coronary arteriography and biplane ventriculography were performed in 51 patients during
the acute (mean of 6.6 hours after onset of symptoms) and chronic (1 to 3 months after …

Coherence and spectral filtering in neutron interferometry

H Kaiser, R Clothier, SA Werner, H Rauch, H Wölwitsch - Physical Review A, 1992 - APS
The coherence length of a neutron wave packet depends on the spectral width of the
distribution of wave vectors that make up the packet. The coherent overlap of the wave packets …