Results 61 to 70 of about 24,541 (310)
Dead time optimization method for power converter [PDF]
Advances in Radio Science, 2013 This paper introduces a method for dead time optimization in variable speed motor drive systems. The aim of this method is to reduce the conduction time of the freewheeling diode to a minimum without generation of cross conduction.
C. Deselaers, U. Bergmann, F. Gronwald
doaj +1 more source
Congenital Conductive Hearing Loss in the Lacrimoauriculodentodigital Syndrome [PDF]
Archives of Otolaryngology - Head and Neck Surgery, 1997 An inherited middle ear anomaly that was causing hearing impairment in a 12-year-old girl was treated successfully by a stapedotomy combined with a malleovestibulopexy. Cup-shaped ears, abnormal or absent thumbs, and skeletal deformities of the forearms were present in several members of 3 generations of a family.
Ensink, R.J.H. +2 more
openaire +4 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi +6 more
wiley +1 more source
Bridgeless boost rectifier with low conduction losses and reduced diode reverse-recovery problems
, 2019 A bridgeless boost rectifier with low conduction losses and reduced diode reverse-recovery problems is proposed for power-factor correction. The proposed boost rectifier can reduce the conduction losses and alleviate the diode reverse-recovery problems ...
Kim, EH +4 more
core +1 more source
Pareto Frontier of the Arm Energy Ripple and the Conduction Losses of a Modular Multilevel Converter
, 2021 Modular multilevel converters can achieve high power quality and voltage ratings, becoming a good alternative for high-voltage direct-current applications. However, the circulating current and capacitor voltage ripple remain significant drawbacks, mainly
Mario Lopez +3 more
core +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 +3 more
wiley +1 more source
The Impact of Multi-MHz Switching Frequencies on Dynamic On-Resistance in GaN-on-Si HEMTs
IEEE Open Journal of Power Electronics, 2020 Dynamic on-resistance (dRon), where the on-resistance immediately after turn-on is higher than the DC resistance, increases the conduction losses in power converters with gallium nitride high-electron-mobility transistors (GaN HEMTs).
Grayson Zulauf +3 more
doaj +1 more source
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 +2 more
wiley +1 more source
Heat Fluxes and River Energy Budget on the Example of Lowland Świder River
Quaestiones Geographicae, 2015 The paper present the energy budget of the downstream part of lowland Świder River, right tributary of the Vistula River in Mazovian Lowland, Poland.
Łaszewski Maksym
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source