Article
Materials Science, Multidisciplinary
V. Krmelova, J. Krmela, A. Dubec, P. Skalkova
Summary: This study investigates the effect of natural organic additive cellulose on the preparation, morphology, and thermal properties of polypropylene fibers. A series of modified polypropylene fibers with different cellulose content (ranging from 0 wt.% to 3 wt.%) were prepared using the traditional process of melt spinning and drawing. The non-isothermal crystallization and melting behavior of the fibers were analyzed using differential scanning calorimetry tests, and the surface morphology and cross-sectional shapes were examined using scanning electron microscopy. The experimental results were compared with reference polypropylene fibers prepared under the same technological conditions.
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
(2023)
Article
Engineering, Chemical
Thorsten Wolff, Torsten Brinkmann, Carsten Scholles, Martin Kerner
Summary: This study highlights the significance of sustainable energy supply in addressing climate change. It demonstrates the combination of decentralized heat supply in urban areas using renewable energies and algae production. Through membrane separation technology, the CO2 emissions produced in a decentralized manner are utilized for biomass production. The long-term observation of the CO2-selective membrane materials provides solid evidence for the operability of polymer membrane and membrane module technology, allowing further optimization of the separation process for future applications, including a wider range of applications.
CHEMIE INGENIEUR TECHNIK
(2023)
Article
Psychology, Educational
Daniela Renger, Sophus Renger, Michaela M. Koeller, Jens Moeller
Summary: The teaching profession is facing a shortage of teachers, particularly male teachers. Past research has shown that students' career choices are influenced by the perceived gender fit of a profession. This is especially relevant for adolescent boys and their perception of teaching as a predominantly feminine profession. In an experimental study, it was found that manipulating the gender fit of the teaching profession increased male students' intention to become teachers, while female students were not affected. The implications for gender-bias free recruitment of future teachers are discussed.
ZEITSCHRIFT FUR PADAGOGISCHE PSYCHOLOGIE
(2023)
Article
Construction & Building Technology
Anna Wallner, Thomas Ummenhofer
Summary: This research aims to explore the application of lightweight metal building envelopes in seismic conditions, reducing the load on the primary structure and developing design procedures accordingly. Experimental investigations on lightweight connections will be conducted to understand their static and dynamic properties and develop appropriate engineering models.
Article
Public, Environmental & Occupational Health
Peter Ihle, Udo Schneider, Verena Vogt
Summary: This article presents 5 key questions for assessing the suitability of routine practice data for health services research, aiming to foster a common understanding between researchers and data-holding institutions.
Article
Construction & Building Technology
Thilo Schmidt, Andrej Albert
Summary: The use of void formers in reinforced concrete slabs can contribute to reducing greenhouse gas emissions in the construction industry. By optimizing the shape of void formers, the amount of concrete used can be minimized while minimizing the impact on load-bearing capacity. A genetic algorithm and nonlinear FEM simulations are used to optimize the design of void formers.
BETON- UND STAHLBETONBAU
(2023)
Article
Materials Science, Multidisciplinary
Constantin Harder, Alexandros E. Alexakis, Yusuf Bulut, Shuxian Xiong, Benedikt Sochor, Guangjiu Pan, Huaying Zhong, Korneliya Goordeyeva, Manuel A. Reus, Volker Koerstgens, Arno Jeromin, Thomas F. Keller, L. Daniel Soederberg, Eva Malmstroem, Peter Mueller-Buschbaum, Stephan V. Roth
Summary: The authors of this paper investigate the correlation between nanostructure and optical properties of thin hybrid films in order to design sustainable applications. They demonstrate how the refractive index of hybrid cellulose nanofibril/water-dispersed colloidal ink thin films can be manipulated through scalable, layer-by-layer slot-die coating. By studying the different colloidal sizes and their glass transition temperature, they show how post-deposition annealing can alter the colloidal nanostructure and the imbibition of colloids into cellulose nanofibril template.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Juergen Kiessling
Summary: This article provides a historical review on the development of audiology over the past two centuries, emphasizing its multidisciplinary nature focusing on all aspects of hearing impairment. The review specifically focuses on hearing research and diagnostic procedures as representatives for the other important areas of audiology.
ZEITSCHRIFT FUR MEDIZINISCHE PHYSIK
(2021)
Article
Nanoscience & Nanotechnology
Kwangjun Jung, Yue Ji, Tae-Joong Jeong, Peter N. Ciesielski, J. Carson Meredith, Tequila A. L. Harris
Summary: This study explores the feasibility and performance of dual-layer slot die coating technology in preparing cellulose acetate substrates with cellulose nanofiber/chitin bilayer films. The results show that the dual-layer slot die method has lower oxygen permeability compared to the spray coating method, and chitin nanofibers contribute positively to wetting and barrier properties.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Meghan E. Lamm, Kai Li, Ji Qian, Lu Wang, Nathalie Lavoine, Reagan Newman, Douglas J. Gardner, Teng Li, Liangbing Hu, Arthur J. Ragauskas, Halil Tekinalp, Vlastimil Kunc, Soydan Ozcan
Summary: The use of cellulose nanofibers in templating shows great promise in controlling the final properties of advanced functional materials, including mechanical strength, porosity, and others.
ADVANCED MATERIALS
(2021)
Article
Engineering, Civil
Isabell Jaster, Gerrit Placzek, Patrick Schwerdtner
Summary: This paper presents a model-based concept for planning floor logistics during the finishing phase of multi-story building construction. By improving floor logistics, the commonly seen chaos can be eliminated, leading to more efficient workplace design.
Review
Materials Science, Multidisciplinary
Fabian Kraemer, Michael Staehler, Marcus Klein, Matthias Oechsner
Summary: The fatigue behavior of bolted joints is critically important and can lead to failure due to the high notch effect. This study focuses on investigating the influence of the surface system, including coating and lubricant, on the fatigue life of bolted joints. Experimental investigations and material analysis methods were used to evaluate an exemplary basecoat and various lubricant systems. A reproducible method for determining crack initiation and propagation was developed for assessing the lubricant systems.
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
(2023)
Article
Chemistry, Applied
Sung Min Moon, Jae Eun Heo, Jisoo Jeon, Taesik Eom, Daseul Jang, Kyeonga Her, Whirang Cho, Kyungbae Woo, Jeong Jae Wie, Bong Sup Shim
Summary: The study investigates the effect of disintegration process conditions on the structure and properties of tunicate cellulose nanofibers, revealing different mechanical and thermal conductive properties in the resulting nanostructured films under varying hydrolysis times. Nanolayered CNF films show highly anisotropic thermal conductivities, offering practical material strategies for emerging engineering applications.
CARBOHYDRATE POLYMERS
(2021)
Review
Nanoscience & Nanotechnology
Wei Liu, Kun Liu, Haishun Du, Ting Zheng, Ning Zhang, Ting Xu, Bo Pang, Xinyu Zhang, Chuanling Si, Kai Zhang
Summary: This article summarizes and discusses the recent progress in the fabrication and applications of cellulose nanopaper, including the characteristics of various types of nanocellulose, preparation methods, and their applications in different fields.
NANO-MICRO LETTERS
(2022)
Review
Chemistry, Applied
Tiina Nypelo, Barbara Berke, Stefan Spirk, Juho Antti Sirvio
Summary: The periodate oxidation of polysaccharides has evolved from structural analysis to a modification method for engineered materials, with potential applications in crosslinking and functional group generation. This process leads to changes in the structural hierarchies and physical properties of materials derived from forests, providing opportunities for further modifications and enhanced functionalities.
CARBOHYDRATE POLYMERS
(2021)
