Results 31 to 40 of about 86,791,480 (239)

Ni catalyst supported on nitrogen-doped activated carbon for selective hydrogenation of acetylene with high concentration

Catalysis Communications, 2021
Ethylene is a widely used industrial raw material. Due to petroleum resources shortage, direct hydrogenation of acetylene by calcium carbide to ethylene has attracted much attention.
Zhu Xu, Shuzhen Zhou, Mingyuan Zhu
doaj   +1 more source

A PAM Control Method for Matrix Converter Based on Virtual AC/DC/AC Conversion Method

IEEJ Transactions on Industry Applications, 2006
AbstractIn this paper, a novel control method for a matrix converter is proposed. The proposed method is a PAM (Pulse Amplitude Modulation) control method based on a virtual AC/DC/AC conversion method. Output voltage amplitude is controlled by controlling a virtual DC link voltage with a virtual rectifier.
Odaka, Akihiro, Sato, Ikuya, Ohguchi, Hideki, Tamai, Yasuhiro, Mine, Hironori, Itoh, Jun-ichi   +5 more
openaire   +2 more sources

An improved pulsed electroacoustic system for space charge measurement under AC conditions [PDF]

, 2010
In this paper, an improved space charge measurement system based on the pulsed electro acoustic technique (PEA) is presented. The new system gives an essential way to examine the role of space charge in electrical aging process under AC conditions.
Xu, Z., Chen, G., Zhao, J.
core   +2 more sources

Preparation of Ca- and Na-Modified Activated Clay as a Promising Heterogeneous Catalyst for Biodiesel Production via Transesterification

Applied Sciences, 2022
For efficient biodiesel production, an acid-activated clay (AC) modified by calcium hydroxide and sodium hydroxide (CaNa/AC) was prepared as a catalyst.
Yue Wang, Yaseen Muhammad, Sishan Yu, Tian Fu, Kun Liu, Zhangfa Tong, Xueling Hu, Hanbing Zhang   +7 more
doaj   +1 more source

Zero-Valent Iron and Activated Carbon Coupled to Enhance Anaerobic Digestion of Food Waste: Alleviating Acid Inhibition at High Loads

Fermentation, 2023
Anaerobic digestion (AD) has the advantages of utilizing complex substrates and producing renewable energy and is currently one of the mainstream technologies for food waste (FW) resourcing.
Shuang Zhang, Pan Zhao, Ming Gao, Chuanfu Wu, Qunhui Wang, Xiaohong Sun   +5 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Gαi1 inhibition mechanism of ATP-bound adenylyl cyclase type 5.

PLoS ONE, 2021
Conversion of adenosine triphosphate (ATP) to the second messenger cyclic adenosine monophosphate (cAMP) is an essential reaction mechanism that takes place in eukaryotes, triggering a variety of signal transduction pathways.
Daniele Narzi, Siri C van Keulen, Ursula Röthlisberger   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

A Method for Fault Detection and Isolation based on the Processing of Multiple Diagnostic Indices: Application to Inverter Faults in AC Drives [PDF]

, 2013
A general method for fault detection and isolation is proposed and applied to inverter faults in drives of electric vehicles. This method is based on a change-detection algorithm, which allows multiple fault indices to be combined for retrieving the most
KESTELYN, Xavier, SEMAIL, Eric, Fabien Meinguet, Paul Sandulescu, Eric Semail, SANDULESCU, Paul, MEINGUET, Fabien, Xavier Kestelyn   +7 more
core   +1 more source

Analysis of energy processes in pulse converters of AC electric power

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015
The article presents the analysis of energy processes in switched-mode AC-AC converters of buck, boost and buck-boost types. The mathematical model of energy processes is obtained.
A. F. Kadatsky, A. P. Rusu
doaj   +1 more source