Results 21 to 30 of about 288,937 (288)

Wideband direct-coupled differential amplifiers utilising AlGaAs/GaAs HBTs

Electronics Letters, 1988
Wideband direct-coupled differential amplifiers utilising AlGaAs/GaAs HBTs are presented. In the new circuit, input and output voltages of 0 V are obtained in a balanced condition, which allows direct cascade connections of the amplifiers. Superior amplifier performance of 20 dB gain with a 9 GHz bandwidth is obtained.
H. Nakajima, Y. Yamauchi, T. Ishibashi
openaire   +1 more source

Wide-range logarithmic radiometer for measuring high temperatures [PDF]

, 1971
Filter radiometer utilizing photomultiplier circuit, in which a direct-coupled amplifier varies dynode voltage to maintain constant anode current, measures rapid variations of temperature of white-hot charred body at 2000 K to 3000 ...
Liston, E. M.
core   +1 more source

Evaluating the Utility of Paired Tumor and Germline Targeted DNA Sequencing for Pediatric Oncology Patients: A Single Institution Report

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate the diagnostic yield and utility of universal paired tumor–normal multigene panel sequencing in newly diagnosed pediatric solid and central nervous system (CNS) tumor patients and to compare the detection of germline pathogenic/likely pathogenic variants (PV/LPVs) against established clinical referral criteria for cancer ...
Natalie Waligorski, Rebecca Ronsley, Shannon M. Stasi, Jeffrey Stevens, Erin R. Rudzinski, Christina M. Lockwood, Sarah E. S. Leary, Bonnie L. Cole, Michelle A. Ting, Vera Paulson   +9 more
wiley   +1 more source

Method and apparatus for reducing microwave oscillator output noise [PDF]

, 1991
Microwave oscilltors incorporate r.f. feedback with carrier suppression to reduce phase noise. In a direct feedback oscillator arrngement a circulator is interposed between the r.f. amplifier and the high-Q resonator.
Dick, G. John, Saunders, Jonathan E.
core   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source

Differential amplifier with regulator achieves high stability, low drift [PDF]

, 1961
When d-c signals are to be amplified, the usual approach is to use a direct-coupled circuit. The difficulty of maintaining sufficiently low drift in a direct-coupled configuration led to the development of chopper and chopper-stabilized circuits, where ...
Middlebrook, R. D., Taylor, A. D.
core  

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash, Anis Rabbani Nourani, A. K. M. Fazlur Rahman, Dima Ezmigna, Tarig Ali‐Dinar   +4 more
wiley   +1 more source

III-V-on-silicon photonic devices for optical communication and sensing [PDF]

, 2015
In the paper, we review our work on heterogeneous III-V-on-silicon photonic components and circuits for applications in optical communication and sensing.
Abbasi, Amin, Baets, Roel, Bauwelinck, Johan, Cardile, Paolo, Dave, Utsav Deepak, De Groote, Andreas, De Koninck, Yannick, Dhoore, Sören, Fu, Xin, Gassenq, Alban, Hattasan, Nannicha, Huang, Qiangsheng, Keyvaninia, Shahram, Kumari, Sulakshna, Kuyken, Bart, Li, Lianyan, Mechet, Pauline, Morthier, Geert, Muneeb, Muhammad, Roelkens, Günther, Sanchez, Dorian, Shao, Haifeng, Spuesens, Thijs, Subramanian, Ananth, Tassaert, Martijn, UVIN, SARAH, van Campenhout, J., Van Gasse, Kasper, Van Thourhout, Dries, Verbist, Jochem, Wang, Ruijun, Wang, Zhechao, Yin, Xin, Zhang, Jing   +33 more
core   +4 more sources

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim, Natalie Bradford, David Brain, Sameera Senanayake, Sanjeewa Kularatna, Kate Young, Christine Cashion, Tim Hassall, Susanna Cramb   +8 more
wiley   +1 more source

A Rapidly Tunable Laser System for Measurements of NH₂ at 597 nm Behind Reflected Shock Waves

Sensors
Distributed feedback lasers, which feature rapid wavelength tunability, are not presently available in the yellow and orange spectral regions, impeding spectroscopic studies of short-lived species that absorb light in this range.
Sean Clees, Spencer C. Barnes, Taylor M. Rault, Christopher L. Strand, Ronald K. Hanson   +4 more
doaj   +1 more source