Article
Construction & Building Technology
Jun'an Lei, Nanxiang Zheng, Xiaobao Chen, Jiefu Bi, Xirong Wu
Summary: The micro-texture of the aggregate plays a crucial role in the anti-skid performance of asphalt pavement. Sandstone exhibits the best anti-skid performance, followed by magmatic rock and limestone.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Applied
Lan Chu, Chao Guo, Qing Zhang, Qing Wang, Yiwen Ge, Mingyang Hao, Jungang Lv
Summary: This study aims to identify different automotive coatings for forensic purpose using Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy and scanning electron microscope/energy dispersive Xray spectrometer (SEM-EDS). It was found that using these three methods in combination provides more accurate results in multilayered coating analysis for forensic purpose. All three methods provide unique information about the composition of the coatings and yield similar and mutually verifiable results.
PIGMENT & RESIN TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Shuaifeng Gu, Chanjuan Liu, Wenjing Zhang, Mingren Qu, Yanjiao Li, Yitian Zang, Xiaowen Xiong, Ke Pan, Xianghui Zhao
Summary: The study found that the Fusarium verticillioides cutinase has the ability to degrade rice straw cuticle, with palmitic acid and stearic acid as main products. However, it also showed inhibitory effects on the releasing and producing of sugars, making it not suitable for improving the utilization of agricultural straws.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
Tuo Lu, Ya-ming Tang, Hong-yu Ren, Yong-bo Tie
Summary: This study investigated the pore structure and permeability of loess using various techniques, including routine tests, MIP analysis, and SEM image analysis. The results showed that different fractal models had different goodness of fit and fractal dimensions, with the Zhang-Li model performing the best. A new method for detecting segmentation diameter based on the pore structure was proposed, which divided the pore structure into three regions. A new parameter lambda was also introduced to correct the effective porosity and permeability prediction. The corrected prediction equation based on the pore-size distribution function showed the highest goodness of fit.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Nanoscience & Nanotechnology
Geonhee Lee, Yuna Oh, Jung Tae Nam, Seulgi Ji, A-Rang Jang, Du Won Jeong, MinSoung Kang, Sun Sook Lee, Soosang Chae, Donghwi Cho, Jun Yeon Hwang, Kyungeun Lee, Jeong-O Lee
Summary: In this study, we discovered that hydrophilic graphene can be used as an ideal imaging plate for biological specimens, providing excellent image quality and improved z-axis resolution. By functionalizing graphene with polydimethylsiloxane oligomer and processing it with oxygen plasma, hydrophilic graphene with minimal damage to graphene can be obtained.
Article
Anatomy & Morphology
Shuai Kang, Li-xing Nie, Yu-guang Zheng, Tian-tian Zuo, Ying Wang, Jia Shi, Shuang-Cheng Ma
Summary: This study successfully distinguished Cordyceps sinensis from its adulterants using a convenient, quick, and environmentally friendly method, combining microscopic observations and comparisons with entomological literature.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Article
Physics, Applied
Shi Li, Wei Li, Sitian Gao, Xiaodong Hu
Summary: This study developed a tracing method for a scanning electron microscope based on a heterodyne interferometer, which traces the measured values to the laser wavelength and then to the internationally defined meter length reference, proving it as an absolute measurement method. Experimental results showed that this method effectively obtains the performance parameters of the feature size intuitively and significantly improves the measurement accuracy.
MODERN PHYSICS LETTERS B
(2021)
Article
Chemistry, Multidisciplinary
Huaying Lin, Shixiang Tian, Anjun Jiao, Zuoyong Cao, Kai Song, Yihuai Zou
Summary: Understanding the pore heterogeneity of tectonic coal and primary-structure coal is crucial for predicting and preventing tectonic coal. Experimental results show that tectonic coal has higher aliphatic functional groups and hydrogen content than aromatic structural groups, with a wider pore size distribution and higher specific surface area.
Article
Materials Science, Multidisciplinary
Wucheng Sun, Hui Gao, Songcheng Tan, Zhiming Wang, Longchen Duan
Summary: In this study, a deep learning method, Mask R-CNN, was used for quantitative analysis of different wear modes of metal matrix, demonstrating its efficient and accurate automatic identification of matrix wear. By extracting and calculating wear masks, the model effectiveness evaluation can be conducted.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Polymer Science
Rene Daher, Ivo Krejci, Enrico di Bella, Laurine Marger
Summary: The study evaluated the use of digital optical microscopy (DOM) for analyzing marginal adaptation of dental adhesive interfaces, comparing it with scanning electron microscopy (SEM). The results showed no statistically significant difference between DOM and SEM analysis, and DOM analysis took less time.
Article
Construction & Building Technology
Haoxiang He, Shitao Cheng, Yifei Chen, Bingji Lan
Summary: In this study, a method of adding various materials to concrete to improve its multi-scale defects was proposed. Through experiments and analysis, the optimal material contents were determined to enhance the performance of the concrete. The results of the study showed that adding steel fibers and PVA fibers can improve the performance of concrete, while adding rubber particles can enhance its deformation capacity and reduce peak stress and toughness.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Multidisciplinary Sciences
Lucas Schneider, Philip Beck, Levente Rozsa, Thore Posske, Jens Wiebe, Roland Wiesendanger
Summary: Spin chains proximitized by s-wave superconductors are predicted to enter a mini-gapped phase with topologically protected Majorana modes (MMs) localized at their ends. However, the presence of non-topological end states mimicking MM properties can hinder their unambiguous observation. Here, we report on a direct method to exclude the non-local nature of end states via scanning tunneling spectroscopy by introducing a locally perturbing defect on one of the chain's ends. We apply this method to particular end states observed in antiferromagnetic spin chains within a large minigap, thereby proving their topologically trivial character. A minimal model shows that, while wide trivial minigaps hosting end states are easily achieved in antiferromagnetic spin chains, unrealistically large spin-orbit coupling is required to drive the system into a topologically gapped phase with MMs. The methodology of perturbing candidate topological edge modes in future experiments is a powerful tool to probe their stability against local disorder. Spin chains on superconductors have been studied as a possible venue for zero-energy Majorana bound states at the ends of the chain. Here, the authors observe localized end states in antiferromagnetic chains, but rule out a Majorana origin of these states by perturbing them with local defects.
NATURE COMMUNICATIONS
(2023)
Article
Construction & Building Technology
Yu Yan, Jinhui Tang, Guoqing Geng
Summary: This study systematically investigated the microstructure development of both outer and inner C-S-H gel in real cement pastes using high-resolution scanning electron microscopy. It reported the evolution of outer C-S-H morphology from one-dimensional needle-like morphology to three-dimensional honeycomb-like morphology, and found more distinctive deformation and compaction in inner C-S-H morphology evolution. It also challenged the assumption that calcium concentration is the sole determinant of C-S-H morphology change.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Anatomy & Morphology
Daniele Camarda, Edoardo Massa, Roberto Guidetti, Oscar Lisi
Summary: A new and efficient protocol for SEM analysis of tardigrades is proposed, which requires minimal instruments and materials and produces high quality dried animals. The method has potential applications in studying other meiofaunal groups as well.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Anatomy & Morphology
Yu-Jing Zhang, Dong-Yu Chen, Xue-Ting Chao, Zi-Shu Dong, Zong-You Huang, Xia-Lin Zheng, Wen Lu
Summary: This study investigated the antennal sensilla of Copidosomopsis nacoleiae through scanning and transmission electron microscopy. Six types of sensilla were identified on the antennae, with different distribution patterns and potential functions discussed. Future research on host location mechanisms will build upon these observations.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Article
Optics
Heike Loechel, Christoph Braig, Maria Brzhezinskaya, Frank Siewert, Peter Baumgaertel, Alexander Firsov, Alexei Erko
Article
Materials Science, Multidisciplinary
Dmitry Roshchupkin, Luc Ortega, Olga Plotitcyna, Alexei Erko, Ivo Zizak, Dmitry Irzhak, Rashid Fahrtdinov, Oleg Buzanov
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2014)
Article
Chemistry, Physical
Rolf Mitzner, Jens Rehanek, Jan Kern, Sheraz Gul, Johan Hattne, Taketo Taguchi, Roberto Alonso-Mori, Rosalie Tran, Christian Weniger, Henning Schroeder, Wilson Quevedo, Hartawan Laksmono, Raymond G. Sierra, Guangye Han, Benedikt Lassalle-Kaiser, Sergey Koroidov, Katharina Kubicek, Simon Schreck, Kristjan Kunnus, Maria Brzhezinskaya, Alexander Firsov, Michael P. Minitti, Joshua J. Turner, Stefan Moeller, Nicholas K. Sauter, Michael J. Bogan, Dennis Nordlund, William F. Schlotter, Johannes Messinger, Andrew Borovik, Simone Techert, Frank M. F. de Groot, Alexander Foehlisch, Alexei Erko, Uwe Bergmann, Vittal K. Yachandra, Philippe Wernet, Junko Yano
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2013)
Article
Physics, Condensed Matter
D. V. Roshchupkin, O. A. Plotitsynaa, R. R. Fakhrtdinov, D. V. Irzhak, A. I. Erko, L. Ortega
JOURNAL OF SURFACE INVESTIGATION
(2013)
Article
Instruments & Instrumentation
Maria Brzhezinskaya, Alexander Firsov, Karsten Holldack, Torsten Kachel, Rolf Mitzner, Niko Pontius, Jan-Simon Schmidt, Mike Sperling, Christian Stamm, Alexander Foehlisch, Alexei Erko
JOURNAL OF SYNCHROTRON RADIATION
(2013)
Article
Optics
An. Firsov, A. Firsov, B. Loechel, A. Erko, A. Svintsov, S. Zaitsev
Article
Optics
Jan Metje, Mario Borgwardt, Alexandre Moguilevski, Alexander Kothe, Nicholas Engel, Martin Wilke, Ruba Al-Obaidi, Daniel Tolksdorf, Alexander Firsov, Maria Brzhezinskaya, Alexei Erko, Igor Yu. Kiyan, Emad F. Aziz
Article
Optics
Christoph Braig, Heike Loechel, Rolf Mitzner, Wilson Quevedo, Panagiotis Loukas, Markus Kubin, Christian Weniger, Alexander Firsov, Jens Rehanek, Maria Brzhezinskaya, Philippe Wernet, Alexander Foehlisch, Alexei Erko
Review
Biology
Jan Kern, Johan Hattne, Rosalie Tran, Roberto Alonso-Mori, Hartawan Laksmono, Sheraz Gul, Raymond G. Sierra, Jens Rehanek, Alexei Erko, Rolf Mitzner, Phillip Wernet, Uwe Bergmann, Nicholas K. Sauter, Vittal Yachandra, Junko Yano
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2014)
Article
Physics, Condensed Matter
I. A. Sluchinskaya, A. I. Lebedev, A. Erko
PHYSICS OF THE SOLID STATE
(2014)
Proceedings Paper
Optics
A. A. Sokolov, F. Eggenstein, A. Erko, R. Follath, S. Kuenstner, M. Mast, J. S. Schmidt, F. Senf, F. Siewert, Th Zeschke, F. Schaefer
ADVANCES IN METROLOGY FOR X-RAY AND EUV OPTICS V
(2014)
Proceedings Paper
Optics
Alexander Firsov, Maria Brzhezinskaya, Anatoly Firsov, Alexander Svintsov, Alexei Erko
ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS IX
(2014)
Proceedings Paper
Optics
Maria Brzhezinskaya, Alexander Firsov, Alexei Erko
ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS IX
(2014)
Proceedings Paper
Energy & Fuels
Christiane Becker, Jolly Xavier, Veit Preidel, Philippe Wyss, Tobias Sontheimer, Bernd Rech, Juergen Probst, Christoph Huelsen, Bernd Loechel, Alexei Erko, Sven Burger, Frank Schmidt, Franziska Back, Eveline Rudigier-Voigt
NEXT GENERATION (NANO) PHOTONIC AND CELL TECHNOLOGIES FOR SOLAR ENERGY CONVERSION IV
(2013)
