Results 41 to 50 of about 2,901,641 (329)
Surface profilometry with composite interferometer
Optics Express, 2007 We proposed and demonstrated a low-cost optical system for surface profilometry with nanometer-resolution. The system is based on a composite interferometer consisting of a Michelson interferometer and a Mach-Zehnder interferometer. With the proposed phase compensating mechanism, the phase deviation due to the instability of the optical delay system ...
Cheng-Chung, Lai, I-Jen, Hsu
openaire +2 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Modern dust aerosol availability in northwestern China
Scientific Reports, 2017 The sources of modern dust aerosols and their emission magnitudes are fundamental for linking dust with climate and environment. Using field sample data, wind tunnel experiments and statistical analysis, we determined the contributions of wadis, gobi ...
Xunming Wang +12 more
doaj +1 more source
Some Considerations on the Interplay Composition - Surface
Journal of Mosaic Research, 2019 When analysing different floors of Roman mosaic, it must be noted that the choice of the iconographic program for the decoration of one or more spaces in the same building follows, in general, the guidelines given by the commissioner of the work ...
Maria de Jesus DURAN KREMER
doaj +1 more source
Compositional characterisation of the Themis family
, 2015 Context. It has recently been proposed that the surface composition of icy main-belt asteroids (B-,C-,Cb-,Cg-,P-,and D-types) may be consistent with that of chondritic porous interplanetary dust particles (CPIDPs). Aims.
Binzel, R. P. +7 more
core +3 more sources
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Chemical Composition Influence on Macadam Surface Texture
Chemical Engineering Transactions, 2017 The difference of the macadam composition directly affects the texture characteristics of the macadam surface. Through the microscopic digital image analysis of macadam, this paper compares and analyses the distribution area ratio, perimeter, dendritic ...
Peng Tian, Lei Nie, Gaofeng Zhan
doaj +1 more source
, 2018 We report on the electrical properties of polycrystalline NbO2 thin film vertical devices grown on TiN coated SiO2/Si substrates using pulsed laser deposition.
Borisov, Pavel +2 more
core +1 more source
First-principles statistical mechanics study of the stability of a sub-nanometer thin surface oxide in reactive environments: CO oxidation at Pd(100) [PDF]
, 2006 We employ a multiscale modeling approach to study the surface structure and composition of a Pd(100) model catalyst in reactive environments. Under gas phase conditions representative of technological CO oxidation (~1 atm, 300-600 K) we find the system ...
Jutta Rogal +3 more
core +2 more sources
FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source