40 Works

Unpolished UNCD (measured with 10.11 nm AFM tip)

Antoine Sanner, Wolfram G. Nöhring, Luke A. Thimons, Tevis D. B. Jacobs & Lars Pastewka
Substrate material – Unpolished Ultrananocrystalline Diamond. Substrate Manufacturer – Advanced Diamond Technologies Inc.

Unpolished ultrananocrystalline diamond

Luke A. Thimons, Abhijeet Gujrati, Antoine Sanner, Lars Pastewka & Tevis D. B. Jacobs
unpolished UNCD film on silicon wafer Substrate Manufacturer : Advanced Diamond Technologies, Inc.

Unpolished ultrananocrystalline diamond

Luke A. Thimons, Abhijeet Gujrati, Antoine Sanner, Lars Pastewka & Tevis D. B. Jacobs
unpolished UNCD film on silicon wafer Substrate Manufacturer : Advanced Diamond Technologies, Inc.

Synthetic self-affine topography scanned with a virtual spherical probe

Tevis D. B. Jacobs, Till Junge & Lars Pastewka
This surface contains a self-affine topography that has been scanned with a spherical virtual probe of radius 40 nm. The probe was lowered normal to the surface on each point of the reference topography (that is also included here) and the center of the probe was taken as the "measured" value of the topography. The reference topography has a Hurst exponent of 0.8 and was generated with a Fourier-filtering algorithm. This surface was used to...

Au uniaxial compression in x-direction 10 % engineering strain

Wolfram G. Nöhring, Adam R. Hinkle & Lars Pastewka
This surface is the result of a Molecular Dynamics simulation of uni-axial compression of single crystal Au. The initial configuration was an Au cube with side length 100 nm. The x- and y-directions of the simulation cell were parallel to the [-110] and [-1-12] directions of the crystal, respectively. The z-direction was parallel to the [111] crystal direction. The x- and y-directions were periodic, but the z-direction was free, hence the crystal had free surfaces...

Microcrystalline Diamond

Abhijeet Gujrati, Subarna R. Khanal, Lars Pastewka & Tevis D. B. Jacobs
MCD surface topography measured using TEM, AFM, and Stylus Profilometry

Patterns of livestock depredation by snow leopards and effects of intervention strategies: lessons from the Nepalese Himalaya

Marc Filla, Rinzin Phunjok Lama, Tim Filla, Marco Heurich, Niko Balkenhol, Matthias Waltert & Igor Khorozyan
Context. Large carnivores are increasingly threatened by anthropogenic activities, and their protection is among the main goals of biodiversity conservation. The snow leopard (Panthera uncia) inhabits high-mountain landscapes where livestock depredation drives it into conflicts with local people and poses an obstacle for its conservation. Aims. The aim of this study was to identify the livestock groups most vulnerable to depredation, target them in implementation of practical interventions, and assess the effectiveness of intervention strategies...

Standardized nuclear markers improve and homogenize species delimitation in Metazoa

Lars Dietz, Jonas Eberle, Christoph Mayer, Sandra Kukowka, Claudia Bohacz, Hannes Baur, Marianne Espeland, Bernhard A. Huber, Carl Hutter, Ximo Mengual, Ralph S. Peters, Miguel Vences, Thomas Wesener, Keith Willmott, Bernhard Misof, Oliver Niehuis & Dirk Ahrens
Species are the fundamental units of life and their recognition is essential for science and society. DNA barcoding, the use of a single and often mitochondrial gene, has been increasingly employed as a universal approach for the identification of animal species. However, this approach faces several challenges. Here, we demonstrate with empiricalgenomic data from nine metazoan animal lineages including arthropods and 28 vertebrates that multiple nuclear-encoded markers, so called universal single-copy orthologs (USCOs) performs much...

Changes in the direction of the diversity-productivity relationship over fifteen years of stand development in a planted temperate forest

Tanvir Ahmed Shovon, Stephanie Kang, Michael Scherer-Lorenzen & Charles A Nock
Experiments manipulating diversity in both forests and grasslands have often observed a positive diversity-productivity relationship (DPR) which tends to strengthen during plant community development. This pattern is generally attributed to an increase in niche complementarity or facilitation. Most analyses do not examine species dominance and density, which also change over time. Moreover, how neighbourhood scale interactions among tree species affect the DPR is not well understood. We analysed growth and mortality data from the Simplex...

CuZr biaxial compression 20% engineering strain

Wolfram G. Nöhring, Adam R. Hinkle & Lars Pastewka
This surface is the result of a Molecular Dynamics simulation of bi-axial compression of a CuZr (50% Cu, 50% Zr) metallic glass. The initial configuration was a CuZr cube with side length 100 nm. The glass had been produced by quenching from the melt at a rate of 1e11 K/s under fully periodic boundary conditions. In the compression simulation, the x- and y-directions were periodic, but the z-direction was free, hence the glass had free...

Polished Ultrananocrystalline Diamond

Abhijeet Gujrati, Subarna R. Khanal, Lars Pastewka & Tevis D. B. Jacobs
Polished UNCD surface topography measured using TEM, AFM, and Stylus Profilometry

Au biaxial compression 20% engineering strain

Wolfram G. Nöhring, Adam R. Hinkle & Lars Pastewka
This surface is the result of a Molecular Dynamics simulation of bi-axial compression of single crystal Au. The initial configuration was an Au cube with side length 100 nm. The x- and y-directions of the simulation cell were parallel to the [-110] and [-1-12] directions of the crystal, respectively. The z-direction was parallel to the [111] crystal direction. The x- and y-directions were periodic, but the z-direction was free, hence the crystal had free surfaces...

Ni36.67Co30Fe16.67Ti16.67 10% engineering strain

Wolfram G. Nöhring, Adam R. Hinkle & Lars Pastewka
This surface is the result of a Molecular Dynamics simulation of bi-axial compression of a single crystal Ni36.67Co30Fe16.67Ti16.67 solid solution. The initial configuration was a Ni36.67Co30Fe16.67Ti16.67 cube with side length 100 nm. The x- and y-directions of the simulation cell were parallel to the [-34-1] and [-5-27] directions of the crystal, respectively. The z-direction was parallel to the [111] crystal direction. The x- and y-directions were periodic, but the z-direction was free, hence the crystal...

Ni36.67Co30Fe16.67Ti16.67 20% engineering strain

Wolfram G. Nöhring, Adam R. Hinkle & Lars Pastewka
This surface is the result of a Molecular Dynamics simulation of bi-axial compression of a single crystal Ni36.67Co30Fe16.67Ti16.67 solid solution. The initial configuration was a Ni36.67Co30Fe16.67Ti16.67 cube with side length 100 nm. The x- and y-directions of the simulation cell were parallel to the [-34-1] and [-5-27] directions of the crystal, respectively. The z-direction was parallel to the [111] crystal direction. The x- and y-directions were periodic, but the z-direction was free, hence the crystal...

Microcrystalline Diamond

Luke A. Thimons, Abhijeet Gujrati, Antoine Sanner, Lars Pastewka & Tevis D. B. Jacobs
Microcrystalline diamond film deposited on silicon wafer Substrate Manufacturer : Advanced Diamond Technologies, Inc.

Nanocrystalline Diamond

Luke A. Thimons, Abhijeet Gujrati, Antoine Sanner, Lars Pastewka & Tevis D. B. Jacobs
Nanocrystalline diamond film deposited on silicon wafer Substrate Manufacturer : Advanced Diamond Technologies, Inc.

Nanocrystalline Diamond

Abhijeet Gujrati, Subarna R. Khanal, Lars Pastewka & Tevis D. B. Jacobs
NCD surface topography measured using TEM, AFM, and Stylus Profilometry

Spherical Ruby tip (500 micron)

Luke A. Thimons, Abhijeet Gujrati, Antoine Sanner, Lars Pastewka & Tevis D. B. Jacobs
polished ruby tips used in adhesion testing material: Ruby manufacturer: Swissjewel

Blast output from: Lost in dead wood? Environmental DNA sequencing from dead wood shows little signs of saproxylic beetles

Nathalie Winiger, Sebastian Seibold, Kay Lucek, Jörg Müller & Gernot Segelbacher
eDNA metabarcoding has become a standard method for assessing wood-inhabiting fungi and bacteria, yet determination of dead-wood-inhabiting beetles still relies on time-consuming collection of beetle specimens. We thus tested whether beetle species can be identified by eDNA sequencing of wood in a mesocosm experiment that manipulated species assemblages. Dead wood samples were taken at exit holes of beetles and DNA was extracted and analyzed using two comparative methods: (i) metabarcoding with standard arthropod primers (421...

Past, present and future of chamois science

Luca Corlatti, Laura Iacolina, Toni Safner, Marco Apollonio, Elena Buzan, Francesco Ferretti, Sabine Hammer, Juan Herrero, Luca Rossi, Emmanuel Serrano, Mari Cruz Arnal, Francesca Brivio, Roberta Chirichella, Antonella Cotza, Barbara Crestanello, Johan Espunyes, Daniel Fernández De Luco, Saskia Friedrich, Dragan Gačić, Laura Grassi, Stefano Grignolio, Heidi Hauffe, Kresmir Kavčić, Andreas Kinser, Francesca Lioce … & Nikica Šprem
The chamois Rupicapra spp. is the most abundant mountain ungulate of Europe and the Near East, where it occurs as two species, the Northern chamois R. rupicapra and the Southern chamois R. pyrenaica. Here, we provide a state-of-the-art overview of research trends and the most challenging issues in chamois research and conservation, focusing on taxonomy and systematics, genetics, life history, ecology and behavior, physiology and disease, management, and conservation. Research on Rupicapra has a longstanding...

Plant invasion modifies isohydricity in Mediterranean tree species

Simon Haberstroh, Raquel Lobo-Do-Vale, Maria C. Caldeira, Maren Dubbert, Matthias Cuntz & Christiane Werner
Understanding of plant hydraulic strategies (i.e., the degree of iso-/anisohydricity) is crucial to predict the response of plants to changing environmental conditions such as climate-change induced extreme drought. Several abiotic factors, including evaporative demand, have been shown to seasonally modify the isohydricity of plants. However, the impact of biotic factors such as plant-plant interactions on hydraulic strategies has seldom been explored. Here, we investigated adaptations and changes in hydraulic strategies of two woody species in...

Self-affine synthetic surface

Tevis D. B. Jacobs, Till Junge & Lars Pastewka
This surface contains virtual measurements taken out of a large self-affine synthetic surface with Hurst exponent 0.8. The original surface had 50,000 x 50,000 data points and was created using a Fourier filtering algorithm. The surface was "measured" in block containing 500 x 500 data points with a variety of scan sizes ranging from almost the full surface with 100 μm width to 10 μm to 1 μm, with pixel sizes scaling accordingly. This surface...

Ni36.67Co30Fe16.67Ti16.67 0% strain (initial surface)

Wolfram G. Nöhring, Adam R. Hinkle & Lars Pastewka
This surface is the result of a Molecular Dynamics simulation of bi-axial compression of a single crystal Ni36.67Co30Fe16.67Ti16.67 solid solution. The initial configuration was a Ni36.67Co30Fe16.67Ti16.67 cube with side length 100 nm. The x- and y-directions of the simulation cell were parallel to the [-34-1] and [-5-27] directions of the crystal, respectively. The z-direction was parallel to the [111] crystal direction. The x- and y-directions were periodic, but the z-direction was free, hence the crystal...

Au uniaxial compression in x-direction 20 % engineering strain

Wolfram G. Nöhring, Adam R. Hinkle & Lars Pastewka
This surface is the result of a Molecular Dynamics simulation of uni-axial compression of single crystal Au. The initial configuration was an Au cube with side length 100 nm. The x- and y-directions of the simulation cell were parallel to the [-110] and [-1-12] directions of the crystal, respectively. The z-direction was parallel to the [111] crystal direction. The x- and y-directions were periodic, but the z-direction was free, hence the crystal had free surfaces...

Rough sphere

Antoine Sanner & Lars Pastewka
Example illustrating the contact of a rough sphere that behaves as a nominally flat rough surface at small normal forces while it follows the Hertzian theory of smooth spheres at large normal forces. This dataset is similar to the simulations in https://doi.org/10.1063/1.4950802 The topographies were generated with the following Python code: ``` from SurfaceTopography.Generation import fourier_synthesis from SurfaceTopography.Special import make_sphere import numpy as np a0 = 1 # Pixel size radius = 10000 n =...

Registration Year

  • 2022
    40

Resource Types

  • Dataset
    40

Affiliations

  • Cluster of Excellence livMatS, Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
    30
  • Department of Microsystems Engineering, University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany
    30
  • Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15261, USA
    15
  • Material, Physical and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, NM 87123, USA
    14
  • Institute for Applied Materials, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
    14
  • University of Freiburg
    10
  • University of Göttingen
    2
  • Department of Mechanical Engineering, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
    2
  • University of Padua
    1
  • University of Plymouth
    1