Results 21 to 30 of about 523 (205)

Handling Characteristics of Mems-Tweezers with Contact Surface Fabricated by Deep-Rie

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
Methods for enhancing the gripping ability of microtweezers are examined in terms of friction force. Two aspects are investigated experimentally. One is a method for increasing the coefficient of friction of the handling part of the microtweezers.
Satomitsu IMAI, Tadashi ISHIKAWA, Masakazu SATO, Hiroki SATO, Keisuke TAMURA   +4 more
doaj   +1 more source

Fe‐based catalysts for nitrogen reduction toward ammonia electrosynthesis under ambient conditions

SusMat, 2022
As one of the most important chemicals and carbon‐free energy carriers, ammonia (NH3) has significant energy‐related applications in industry and agriculture.
Haiding Zhu, Xuefeng Ren, Xiaoxuan Yang, Xingyou Liang, Anmin Liu, Gang Wu   +5 more
doaj   +1 more source

Characterisation of oxide layers on technical copper based on visible hyperspectral imaging

Journal of Spectral Imaging, 2019
The detection and characterisation of oxide layers on metallic copper samples plays an important role for power electronic modules in the automotive industry.
Jan Stiedl, Georgette Azemtsop M., Barbara Boldrini, Simon Green, Thomas Chassé, Karsten Rebner   +5 more
doaj   +1 more source

Use of Hyperspectral Imaging for the Quantification of Organic Contaminants on Copper Surfaces for Electronic Applications

Sensors, 2021
To correctly assess the cleanliness of technical surfaces in a production process, corresponding online monitoring systems must provide sufficient data.
Tim Englert, Florian Gruber, Jan Stiedl, Simon Green, Timo Jacob, Karsten Rebner, Wulf Grählert   +6 more
doaj   +1 more source

Effects of Mask Material on Lateral Undercut of Silicon Dry Etching

Micromachines, 2023
The silicon etching process is a core component of production in the semiconductor industry. Undercut is a nonideal effect in silicon dry etching. A reduced undercut is desired when preparing structures that demand a good sidewall morphology, while an ...
Yongkang Zhang, Zhongxuan Hou, Chaowei Si, Guowei Han, Yongmei Zhao, Xiaorui Lu, Jiahui Liu, Jin Ning, Fuhua Yang   +8 more
doaj   +1 more source

Residual polymer effect on shallow trench Bosch process stability

AIP Advances, 2020
This paper offers a solution to address the unstable shallow trench Bosch process problem by altering several major contributing factors involved in chamber polymer deposition. This approach has been implemented to product lines and has proven to be very
Chan-Yun Lee, Andy Shen
doaj   +1 more source

Automation of customizable library preparation for next-generation sequencing into an open microfluidic platform

Scientific Reports
Next-generation sequencing (NGS) is becoming more relevant for medical diagnostics, especially for using cell-free DNA to monitor response to therapy in cancer management, as high sensitivity of NGS enables detection of rare events.
Anne Hoffmann, Anke Timm, Christopher Johnson, Steffen Rupp, Christian Grumaz   +4 more
doaj   +1 more source

Splicing the active phases of copper/cobalt-based catalysts achieves high-rate tandem electroreduction of nitrate to ammonia

Nature Communications, 2022
Electrocatalytic recycling of waste nitrate to NH3 under ambient conditions maybe an appealing alternative to the Haber−Bosch process. Here the authors report a tandem catalyst system involving cooperative adsorption of reaction intermediate on different
Wenhui He, Jian Zhang, Stefan Dieckhöfer, Swapnil Varhade, Ann Cathrin Brix, Anna Lielpetere, Sabine Seisel, João R. C. Junqueira, Wolfgang Schuhmann   +8 more
doaj   +1 more source

Decarbonization in ammonia production, new technological methods in industrial scale ammonia production and critical evaluations

Heliyon, 2021
With the synthesis of ammonia with chemical methods, global carbon emission is the biggest threat to global warming. However, the dependence of the agricultural industry on ammonia production brings with it various research studies in order to minimize ...
Abdullah Emre Yüzbaşıoğlu, Ali Hikmet Tatarhan, Ahmet Ozan Gezerman   +2 more
doaj   +1 more source

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

Advanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen, Peng‐Jun Deng, Yang Liu, Shenglong Huang, Shuo Sun, Haoxuan Li, Jiajia Lu, Panagiotis Tsiakaras   +7 more
wiley   +1 more source