Results 61 to 70 of about 6,980,177 (302)
Effect of Sample Size on Sound Velocity Measurement Error by Pulse Transmission Method
Cejing jishuThe acoustic velocity measurement of core samples can provide crucial reservoir geological information, with practical application value in reservoir evaluation and geological model construction.
LI Jiahui +3 more
doaj +1 more source
Effect of amplitude and pulse in low frequency ultrasound on oil/water emulsions
Dyna, 2016 The application of ultrasound within advanced or emerging technologies requires selecting parameters that depend on the target application. This study evaluated pulse and amplitude parameters of oil/water emulsions (20:80% w/w) using low frequency probe ...
María Alejandra Cabrera-Trujillo +2 more
doaj +1 more source
Low-frequency line temperatures of the CMB
, 2009 Based on SU(2) Yang-Mills thermodynamics we interprete Aracde2's and the results of earlier radio-surveys on low-frequency CMB line temperatures as a phase-boundary effect.
Copi +18 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Purpose Cognitive and psychological difficulties could negatively interfere with treatment adherence and quality of life before and after hematopoietic stem cell transplant (HSCT). Methods to mitigate these changes may have positive effects on treatment success.
Kristen L. Votruba +11 more
wiley +1 more source
Towards Nonlinear Magnetic Rotating Pendula for Low-Frequency Weak Vibration Energy Harvesting
EnergiesEnergy harvesting from ambient vibrations has received significant attention as an alternative renewable, clean energy source for microelectronic devices in diverse applications such as wearables and environmental monitoring.
Mihai Ionut Trandafir +1 more
doaj +1 more source
Low frequency acoustics in solid $^4$He at low temperature
, 2009 The elastic properties of hcp $^4$He samples have been investigated using low frequency (20 Hz to 20 kHz) high sensitivity sound transducers. In agreement with the findings of other workers, most samples studied grew very significantly stiffer at low ...
A. Penzev +4 more
core +1 more source
Low-Frequency Microphone [PDF]
The Journal of the Acoustical Society of America, 1961 This paper describes the design of a high-sensitivity low-frequency microphone. It has two basic components, a microphone element and a preamplifier. The microphone element is of the condenser type, using an edge-clamped stretched-Mylar diaphragm. The condenser microphone is used as one arm of a capacitance bridge which is furnished excitation by an rf
J. R. Barger, A. Witchey, L. Weinreb
openaire +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT A second allogeneic (allo‐)hematopoietic stem cell transplantation (HSCT2) is a potential curative option for pediatric patients with acute lymphoblastic leukemia (ALL) following relapse after first allogeneic transplantation (HSCT1), but its efficacy is limited by high relapse rates and transplant‐related toxicity in highly pretreated ...
Ava Momm +10 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi +4 more
wiley +1 more source
Electromagnetic optimization of piezoelectric ceramic and its application in mechanical antenna
IET NanodielectricsMechanical antennas have garnered considerable attention due to their ability to address the challenges posed by the significant size and high energy consumption associated with traditional electric antennas when operating at low frequencies.
Song Gao +7 more
doaj +1 more source