Results 81 to 90 of about 1,391,576 (311)

A Novel Strategy for Improving the Aeromagnetic Compensation Performance of Helicopters

open access: yesSensors, 2018
An aeromagnetic survey is an important method in magnetic anomaly detection and geophysical prospecting. The magnetic field is typically measured by optically pumped magnetometers (OPM) installed on the aircraft.
Luzhao Chen   +4 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Microreview: type IV secretion systems: versatility and diversity in function [PDF]

open access: yes, 2010
Type IV secretion systems (T4SSs) are large protein complexes which traverse the cell envelope of many bacteria. They contain a channel through which proteins or protein–DNA complexes can be translocated.
Angel Rivera-Calzada   +5 more
core   +1 more source

Comparative Analysis of Transfer Function Method with Advanced Flood Prediction Techniques [PDF]

open access: yesWater Harvesting Research
In this paper, the evaluation of the performance of five flood prediction models in the Simineh-Rood River, Lake Urmia basin, Iran, is discussed in detail.
Jafar Chabokpour
doaj   +1 more source

Unstained blood smear contrast enhancement using spectral time multiplexing super resolution

open access: yesJournal of Spectral Imaging, 2020
We report the use of Time Multiplexing Super Resolution (TMSR) to reduce significantly speckle noise in spectral imaging microscopy of unstained thin blood smear samples of malaria-infected blood.
Marie-Florence A. Yebouet   +3 more
doaj   +1 more source

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

The mechanism of heat transfer in nucleate pool boiling [PDF]

open access: yes, 1962
A criterion is developed for bubble initiation from a gas filled cavity on a surface in contact with a superheated layer of liquid. It is found that the temperature of bubble initiation on a given surface is a function of the temperature conditions in ...
Han, Chi-Yeh, Griffith, P.
core  

Methods for the transfer function design of multiple narrow-band bandpass sigma-delta modulators [PDF]

open access: yes, 2001
This paper presents the design analysis of novel tunable narrow-band bandpass sigma-delta modulators, which can achieve concurrent multiple noise-shaping for multi-tone input signals.
Morling, R.C.S., Kale, I., Al-Janabi, M.
core   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Characterization of the head-related transfer function using chirp and maximum length sequence excitation signals [PDF]

open access: yes, 2011
Both chirp (or sweep) and maximum length sequence (MLS) excitation signals are used to obtain measurements of the head-related transfer function (HRTF) for the Knowles electronic manikin for acoustic research (KEMAR), resulting in remarkably low relative
Tidemann, Jeremy A.
core  

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