Results 31 to 40 of about 32,799 (288)

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

Deep Reactive-Ion Etching Development With the Bosch Process [PDF]

, 2022
The Bosch process is a type of deep reactive-ion etching (DRIE) of silicon. It is a type of plasma etching, or dry etching, that uses physical and chemical processes to etch the surface of a silicon sample.
Pier, Marcelo
core  

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

Urea Finishing Process: Prilling versus Granulation [PDF]

, 2014
Solid urea is the largest nitrogen fertilizer product which is produced in two forms of granules and prills. Although the chemical properties of both prills and granules remain similar, their different physical and mechanical properties are ...
Naderi, Sina, Naderi, S., Hassanpour, Ali, Abbas, R., Hassanpour, A., Šupuk, Enes, Abbas, Rafid, Supuk, E., Rahmanian, Nejat, Supuk, E, Hassanpour, A, Rahmanian, N, Abbas, R, Naderi, S   +13 more
core   +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

Electrified Haber-Bosch Process: Green Ammonia Production

, 2022
This report provides a design for a new process to make the ammonia-producing Haber-Bosch process more sustainable by reducing its CO2 emissions. It presents different elements of a process design with most importantly; process diagrams, mass and energy ...
Visschers, Cas (author), El Tawil Hamade, Yara (author), Tran, Minh Tâm Kevin (author)   +2 more
core  

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

Kajian Aksiologi tentang Kontribusi dan Kontroversi Pemanfaatan Amonia dari Proses Haber-Bosch

, 2022
The purpose of this article is to conduct an axiological study of the Haber-Bosch process. The Haber-Bosch process had both contributions and controversies early on in its discovery.
Latip, Abdul
core   +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