Results 91 to 100 of about 13,341,436 (324)

Prediction of the aerodynamic performance of re-usable single stage to orbit vehicles [PDF]

, 2011
Re-usable single stage to orbit launch vehicles promise to reduce the cost of access to space, but their success will be particularly reliant on accurate modelling of their aero-thermodynamic characteristics.
Ahmad, Abdul Ossman, Brown, Richard, Maddock, Christie, Scanlon, Thomas   +3 more
core  

GEM Operation in Negative Ion Drift Gas Mixtures

, 2003
The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in carbon disulfide vapor at low pressure, and in mixtures of carbon disulfide with Argon and Helium,
A Schreiner, C.J Martoff, Crane, G Bonvincini, Giomataris, I Shipsey, J Miyamoto, M Katz-Hyman, Martoff, Ohnuki, Pack, R Ayad, Rice-Evans, Sauli, Sauli, Snowden-Ifft   +15 more
core   +1 more source

Prolonged Corrected QT Interval as an Early Electrocardiographic Marker of Cyclophosphamide‐Induced Cardiotoxicity in Pediatric Hematology and Oncology Patients

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cyclophosphamide (CY) is associated with potentially fatal cardiotoxicity, yet no electrocardiographic indices have been established for early detection of CY‐induced cardiomyopathy. This study aimed to determine whether corrected QT interval (QTc) prolongation can predict early onset of CY‐related cardiac dysfunction in pediatric ...
Junpei Kawamura, Kentaro Ueno, Takuro Nishikawa, Yoshihiro Takahashi, Koji Nakae, Yasuhiro Okamoto   +5 more
wiley   +1 more source

Effect of incubation system on the development of intestinal villi, metabolism, and performance of one- to forty-day-old broiler chickens

Revista Brasileira de Zootecnia
An experiment was performed to evaluate the effect of the incubation system ― multiple-stage (MS) and single-stage (SS) ― on the characteristics at hatching, intestinal morphology, metabolism, and performance of Cobb-500 chickens from 1 to 40 d of age. A
Araceli Pacheco Villanueva, Patrícia Diniz Ebling, Gabriel Colombo Pontalti, Andréa Machado Leal Ribeiro   +3 more
doaj   +1 more source

OPTIMIZED SPACE-VECTOR-MODULATED QUASI Z-SOURCE NPC INVERTER FOR SOLAR PV APPLICATION [PDF]

Carpathian Journal of Electrical Engineering, 2019
An optimized space vector modulation technique for controlling a quasi Zsource NPC inverter for solar photovoltaic application is presented in this paper.
Francis Boafo EFFAH, Philip OKYERE, Patrick WHEELER   +2 more
doaj  

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd, Melissa Taylor, Helen Fulbright, Bob Phillips   +3 more
wiley   +1 more source

Asymmetric modulation of bridgeless single‐stage full‐bridge AC–DC converter for active power factor correction and zero voltage switching

IET Power Electronics, 2023
Singe‐phase single‐stage AC–DC converters exhibit the advantages of lower cost, higher efficiency, and lower power semiconductor device count compared with traditional two‐stage topologies.
Junwei Liu, K. H. Loo, Guibin Wang, Xian Zhang, Ting Wu   +4 more
doaj   +1 more source

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez, Anna Felip‐Badia, Marina Caballero‐Bellon, Nazaret Sanchez‐Sierra, Alicia Castañeda, Moira Garraus, Maite Gorostegui, Margarida Simão‐Rafael, Juan Pablo Muñoz, Marta Perez‐Somarriba, Salvador Mañe, Mariana Cecilia Planells, Sara Perez‐Jaume, Jaume Mora   +13 more
wiley   +1 more source

Novel Single-Stage Electrolytic Capacitor-Less Buck-Boost Inverter

Energies
Nowadays, single-phase, single-stage, buck-boost power inverters are mostly considered to be used for renewable energy source applications due to their wide range of capabilities.
Youn-Ok Choi, Khai M. Nguyen
doaj   +1 more source