Results 41 to 50 of about 41,623 (225)

A novel synthetic test system for thyristor level in the converter valve of HVDC power transmission

MATEC Web of Conferences, 2016
The converter valve is the core equipment in the HVDC power transmission system, a+-nd its performance has a direct effect on the reliability, stability and efficiency of the whole power system.
Liu Longchen, Yue Ke, Pang Lei, Zhang Xinghai, Li Yawei, Zhang Qiaogen   +5 more
doaj   +1 more source

A New Three-Level Flying-Capacitor Boost Converter with an Integrated LC2D Output Network for Fuel-Cell Vehicles: Analysis and Design

Inventions, 2018
In this paper, a new three-level boost converter with continuous input current, common ground, reduced voltage stress on the power switches, and wide voltage gain range is proposed.
Nour Elsayad, Hadi Moradisizkoohi, Osama Mohammed   +2 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Harmonic Analysis and Inductance Design for Line Converter of CRH2 EMUs

机车电传动, 2012
Line converter of CRH2 EMUs was constituted of single-phase three-level topological structure. Based on the calculation of single-phase two-level converter input harmonic, harmonic characteristic of single-phase three-level converter input voltage ...
ZHANG Zhi-bing, ZHANG Zhi-xue, YAO Zhong-hong   +2 more
doaj  

Graphene-based tunable linear and linear-to-circular polarization converters in the THz band

Results in Physics, 2022
A switchable and tunable reflective terahertz (THz) polarization converter based on graphene metamaterial is designed and analyzed. By changing the Fermi energy level of graphene, the converter can achieve broadband linear polarization conversion (LPC ...
Xueguang Yuan, Jingya Chen, Jiali Wu, Xin Yan, Yangan Zhang, Xia Zhang   +5 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Understanding wind turbine power converter reliability under realistic wind conditions

IET Power Electronics
The reliability of wind turbine power converters is crucial for analyzing wind energy project costs, and for estimating maintenance and downtime. The published literature in this field relies on evaluating the reliability effect of wind speed to estimate
Sermed Alsaadi, Christopher J. Crabtree, Peter C. Matthews, Mahmoud Shahbazi   +3 more
doaj   +1 more source

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

Sistem Pembangkit Listrik Tenaga Surya (PLTS) menggunakan Teknologi Maximum Power Point Tracking (MPPT) dan Zeta Converter

Jurnal Elkomika
ABSTRAK Sistem kendali MPPT hendak mengendalikan penciptaan serta penyimpanan energi sistem PV menggunakan DC-DC boost converter. Perancangan dan pembuatan alat zeta converter berhasil dilakukan dengan menggunakan mikrokontroller arduino untuk menaikkan
PARTAONAN HARAHAP, RAHMAT RITONGA, RIMBAWATI RIMBAWATI, BENNY OKTRIALDI, MUNAWAR ALFANSURY SIREGAR, SUDIRMAN LUBIS, CHANDRA A SIREGAR   +6 more
doaj   +1 more source