Results 41 to 50 of about 10,176 (239)

An evaluation of Prospective Motion Correction (PMC) for high resolution quantitative MRI

Frontiers in Neuroscience, 2015
Quantitative imaging aims to provide in vivo neuroimaging biomarkers with high research and diagnostic value that are sensitive to underlying tissue microstructure.
Martina F Callaghan, Oliver eJosephs, Michael eHerbst, Michael eHerbst, Maxim eZaitsev, Nick eTodd, Nikolaus eWeiskopf   +6 more
doaj   +1 more source

Proton NMR relaxometry as a useful tool to evaluate swelling processes in peat soils

, 2010
Dramatic physical and physico-chemical changes in soil properties may arise due to temperature and moisture variations as well as swelling of soil organic matter (SOM) under constant conditions.
As, H., van, Jaeger, F., Shchegolikhina, A., van As, H., Schaumann, G.   +4 more
core   +1 more source

Fitting Quality of NMR Relaxation Data to Differentiate Asphalt Binders

Physchem
Asphalt binder performance grades (PGs) are important metrics in designing pavements for effective transportation infrastructure. The PG system relies on the binder’s stiffness and is determined through energy- and time-intensive physical testing ...
Rebecca M. Herndon, Kevin Lai, Magdy Abdelrahman, Klaus Woelk   +3 more
doaj   +1 more source

Intracellular Relaxometry, Challenges, and Future Directions

ACS Central Science, 2022
Nitrogen vacancy (NV) centers change their optical properties on the basis of their magnetic surroundings. Since optical signals can be detected more sensitively than small magnetic signals, this technique allows unprecedented sensitivity. Recently, NV center-based relaxometry has been used for measurements in living cells with subcellular resolution ...
Alina Sigaeva, Neda Norouzi, Romana Schirhagl   +2 more
openaire   +4 more sources

Probing Near‐Field EM Fluctuations in Superparamagnetic CoFeB With NV Quantum Dephasometry

Advanced Optical Materials, EarlyView.
We non‐invasively investigate the superparamagnetic spin dynamics of a 1.1 nm CoFeB layer by probing its near‐field EM fluctuations using NV centers‐based quantum dephasometry. Our findings are further supported by theoretical modeling and SQUID‐based magnetization characterization. These results provide critical insight into the magnetization dynamics
Shoaib Mahmud, Wei Zhang, Pronoy Das, Angshuman Deka, Wenbo Sun, Zubin Jacob   +5 more
wiley   +1 more source

Environmental NMR: Fast-field-cycling Relaxometry [PDF]

, 2013
Fast-field-cycling (FFC) NMR relaxometry deals with the variation of the spin–lattice relaxation times (T1) in a complex system, as the strength of the applied magnetic field is changed. Information about molecular dynamics can be achieved.
CONTE, Pellegrino, ALONZO, Giuseppe
core   +1 more source

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

Advanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

Synthetic MRI for stroke: a qualitative and quantitative pilot study

Scientific Reports, 2022
Synthetic MR provides qualitative and quantitative multi-parametric data about tissue properties in a single acquisition. Its use in stroke imaging is not yet established.
Joachim André, Sami Barrit, Patrice Jissendi   +2 more
doaj   +1 more source

Changes in Physicochemical Properties of Biochar after Addition to Soil

Agriculture, 2022
It is recognized that biochar undergoes changes when it is applied to soils. However, the mechanisms of biochar alterations are not fully understood yet. To this purpose, the present study is designed to investigate the transformations in the soil of two
Guido Fellet, Pellegrino Conte, Villiam Bortolotti, Fabiana Zama, Germana Landi, Delia Francesca Chillura Martino, Vito Ferro, Luca Marchiol, Paolo Lo Meo   +8 more
doaj   +1 more source

Quantum Photothermal Self‐Monitoring Fiber Probes for In Vivo Photothermal Therapy

Advanced Science, EarlyView.
A miniaturized quantum photothermal fiber probe based on a metal/polymer/glass composite optoelectronic fiber that simultaneously guides lightwave and microwave was developed for the first time. The probe achieves enhanced photothermal conversion (13°C/mW, 25°C–120°C range) while providing real‐time self‐monitoring with 0.2°C thermal resolution at the ...
Wanjun Li, Ruixiao Hu, Jie Mao, Jin Wo, Yunsong Zhang, Liang Chen, Ying Liu, Zhibo Li, Yongxin Lin, Minghui Du, Yaofei Chen, Libing Zhou, Tuan Guo   +12 more
wiley   +1 more source