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Project Life INSUSHELL: Reducing the Carbon Footprint in Concrete Construction
Tomoscheit, Silke,Gries, Thomas,Horstmann, Michael,Hegger, Josef Sustainable Building Research Center 2011 International journal of sustainable building tech Vol.2 No.2
Within the Life INSU-SHELL project (Environmentally Friendly fa$\c{c}$ade Elements made of thermal insulated Textile Reinforced Concrete) RWTH Aachen University together with industrial partners developed and implemented an innovative and eco friendly modular system for sandwich fa$\c{c}$ades. The thin-walled, light-weight sandwich structure combines Textile Reinforced Concrete (TRC) and a PUR-rigid-foam-insulation. With the use of TRC a large quantity of concrete material and therefore $CO_2$-output can be avoided. The lower amount of concrete used in the new elements results in a reduction of $CO_2$-output of about 70% in comparison to a similar element of ferroconcrete. The lower weight saves energy and fuel. Moreover it reduces the pollutant emission in transport and application. The employment of the innovative elements at the new INNOTEX building (ITA: Institut fuer Textiltechnik of RWTH Aachen University) with a fa$\c{c}$ade size of about $590\;m^2$ saved large quantities of $CO_2$-output in comparison to conventional building techniques.
CMOS Compatible Fabrication Technique for Nano-Transistors by Conventional Optical Lithography
Horst, C.,Kallis, K.T.,Horstmann, J.T.,Fiedler, H.L. The Institute of Electronics and Information Engin 2004 Journal of semiconductor technology and science Vol.4 No.1
The trend of decreasing the minimal structure sizes in microelectronics is still being continued. Therefore in its roadmap the Semiconductor Industries Association predicts a printed minimum MOS-transistor channel length of 10 nm for the year 2018. Although the resolution of optical lithography still dramatically increases, there are known and proved solutions for structure sizes significantly below 50 nm up to now. In this work a new method for the fabrication of extremely small MOS-transistors with a channel length and width below 50 nm with low demands to the used lithography will be explained. It's a further development of our deposition and etchback technique which was used in earlier research to produce transistors with very small channel lengths down to 30 nm, with a scaling of the transistor's width. The used technique is proved in a first charge of MOS-transistors with a channel area of W=200 nm and L=80 nm. The full CMOS compatible technique is easily transferable to almost any other technology line and results in an excellent homogeneity and reproducibility of the generated structure size. The electrical characteristics of such small transistor will be analyzed and the ultimate limits of the technique will be discussed.
Gigantic Suprapubic Lymphedema: A Case Study
Roozbeh Tanhaeivash,Tobias Franiel,Marc-Oliver Grimm,Marcus Horstmann 대한남성과학회 2016 The World Journal of Men's Health Vol.34 No.2
We present the first case study of idiopathic gigantic suprapubic lymphedema and buried penis treated with puboscrotal reconstruction in a patient with initial extreme obesity after an extensive weight reduction (120 kg). Massive localized lymphedema of the suprapubic region should be differentiated from the scrotal type. Severe lymphedema could not resolve on its own and weight reduction does not seem to be helpful in such cases.
Auto-induction Screening Protocol for Ranking Clonal Libraries of Pichia pastoris MutS Strains
David Wollborn,Rebecca Luise Müller,Lara Pauline Munkler,Rebekka Horstmann,Andrea Germer,Lars Mathias Blank,Jochen Büchs 한국생물공학회 2022 Biotechnology and Bioprocess Engineering Vol.27 No.4
Screening Pichia pastoris (Komagataella phaffii) strain libraries utilizing the methanol inducible alcohol oxidase 1 (AOX1) promoter requires addition of methanol as an inducer during cultivation. As the AOX1 promoter is repressed in the presence of glucose or glycerol, common screening procedures include long incubation times before methanol induction by successive multiple additions. In this study, a P. pastoris MutS strain, secreting a green fluorescent protein (GFP), was used to characterize a standard screening protocol in complex medium. Based on these results, an auto-induction screening method for P. pastoris strains was developed using mineral SYN6 medium, where methanol was added from the beginning. To gain more insight into growth and production behavior, the cultures were online-monitored, using the Respiration Activity Monitoring System and the BioLector system. Monitoring the oxygen transfer rate indicated that prolonged cultivation phases before induction can be avoided and that high glucose concentrations hinder inducible protein production. The results show the effects of using 20 g/L glucose, and the resulting ethanol formation on the screening process. The newly developed auto-induction method was then used to screen and rank a strain library of high, medium, and low GFP producers. These results demonstrate that the auto-induction method facilitates the identification of high producers during primary screening. It is significantly less time consuming and labor intensive. Nonetheless, it leads to the same conclusion as the conventional screening with manual methanol additions.