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相关论文: Rotating-crystal Malaria Diagnosis: Pre-clinical v…

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We report on a new technique which was used to detect single Escherichia coli that is based on the changes in the nonlinear rotation of a magnetic microsphere driven by an external magnetic field. The presence of one Escherichia Coli…

生物物理 · 物理学 2007-05-23 Brandon H. McNaughton , Rodney R. Agayan , Raoul Kopelman

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is the most sensitive radio telescope for pulsar observations. We make polarimetric measurements of a large number of faint and distant pulsars using the FAST. We present the…

星系天体物理 · 物理学 2022-12-01 Jun Xu , Jinlin Han , Pengfei Wang , Yi Yan

In MRI, researchers have long endeavored to effectively visualize myelin distribution in the brain, a pursuit with significant implications for both scientific research and clinical applications. Over time, various methods such as myelin…

医学物理 · 物理学 2024-09-27 Jongho Lee , Sooyeon Ji , Se-Hong Oh

We introduce a new technique to constrain the line-of-sight integrated electron density of our Galactic halo $\text{DM}_\text{MW,halo}$ through analysis of the observed dispersion measure distributions of pulsars $\text{DM}_\text{pulsar}$…

星系天体物理 · 物理学 2020-06-09 E. Platts , J. Xavier Prochaska , Casey J. Law

Plasmodium vivax is one of the most geographically widespread malaria parasites in the world due to its ability to remain dormant in the human liver as hypnozoites and subsequently reactivate after the initial infection (i.e. relapse…

Quantitative magnetization transfer (qMT) imaging provides myelin-sensitive biomarkers, such as the pool size ratio (PSR), which is valuable for multiple sclerosis (MS) assessment. However, qMT requires specialized 20-30 minute scans. We…

图像与视频处理 · 电气工程与系统科学 2025-11-27 Jiacheng Wang , Hao Li , Xing Yao , Ahmad Toubasi , Taegan Vinarsky , Caroline Gheen , Joy Derwenskus , Chaoyang Jin , Richard Dortch , Junzhong Xu , Francesca Bagnato , Ipek Oguz

As a key precursor for nitrogenous compounds and fertilizer, ammonia affects our lives in numerous ways. Rapid and sensitive detection of ammonia is essential, both in environmental monitoring and in process control for industrial…

For the first time, the morphology and dynamics of spin avalanches in Mn12-Acetate crystals using magneto-optical imaging has been explored. We observe an inhomogeneous relaxation of the magnetization, the spins reversing first at one edge…

介观与纳米尺度物理 · 物理学 2009-06-16 D. Villuendas , D. Gheorghe , A. Hernández-Mínguez , F. Macià , J. M. Hernandez , J. Tejada , R. J. Wijngaarden

Non-invasive optical manipulation of particles has emerged as a powerful and versatile tool for biological study and nanotechnology. In particular, trapping and rotation of cells, cell nuclei and sub-micron particles enables unique…

We describe a morphological imprint of magnetization found when considering the relative orientation of the magnetic field direction with respect to the density structures in simulated turbulent molecular clouds. This imprint was found…

星系天体物理 · 物理学 2013-08-27 J. D. Soler , P. Hennebelle , P. G. Martin , M. A. Miville-Deschênes , C. B. Netterfield , L. M. Fissel

The beam transport experiments in toroidal magnets were first described in EPAC08 [1] within the framework of a proposed low energy ion storage ring at Frankfurt University. The experiments with two room temperature 30 degree toroids are…

加速器物理 · 物理学 2016-06-16 N. Joshi , M. Droba , O. Meusel , H. Niebuhr , U. Ratzinger

A new transversely polarised frozen spin target has been developed at MAMI which will be used in conjunction with the photon tagger and the Crystal Ball detector. The new target permits a major new programme of accurate measurement of…

核实验 · 物理学 2015-05-30 P. Hall Barrientos

Plasmonic metamaterials can be used to enhance mid-infrared sensors and detectors for immunosensing applications. The major challenge is to integrate these technologies in low-cost, compact, and promising platforms. In this study, as an…

Many processes in microfluidics and biology are driven or affected by viscosity. While several methods are able to measure this parameter globally (AFM, surface acoustic waves, DLS, ...), very few can provide high resolution viscosity…

仪器与探测器 · 物理学 2023-03-23 C. Gentner , P. Berto , J. -F. Berret , S. Reichman , R. Kuszelewicz , G. Tessier

Magnetotactic bacteria (MTB) are endowed with an exquisite orientation mechanism allowing them to swim along the geomagnetic field lines. This mechanism consists of a chain of bio-synthesized magnetic nano-crystals that endow MTB with a…

Quantum measurement principle is employed to detect water quality and presence of nano-colloids. The setup uses spatially low coherent light source, for which the outcome of measurement is dependent on the presence of a reflecting surface…

光学 · 物理学 2016-01-05 Sufi O Raja , Anjan K Dasgupta

Rotating modulation is a technique for indirect imaging in the hard x-ray and soft gamma-ray energy bands, which may offer an advantage over coded aperture imaging at high energies. A rotating modulator (RM) consists of a single mask of…

天体物理仪器与方法 · 物理学 2011-04-15 Brent S. Budden , Mark R. Budden , Gary L. Case , Michael L. Cherry

We demonstrate orientation-sensitive multimodal nonlinear optical polarizing microscopy capable of probing orientational, polar, and biaxial features of mesomorphic ordering in soft matter. This technique achieves simultaneous imaging in…

软凝聚态物质 · 物理学 2015-05-19 Taewoo Lee , Rahul P. Trivedi , Ivan I. Smalyukh

In conventional Kerr- and Faraday microscopy the sample is illuminated with plane-polarised light and a magnetic domain contrast is generated by an analyser making use of the Kerr- or Faraday rotation. In this paper we demonstrate…

材料科学 · 物理学 2021-07-14 R. Schäfer , Peter M. Oppeneer , Alexey Ognev , Alexander Samardak , Ivan V. Soldatov

Many processes in microfluidics and biology are driven or affected by viscosity. While several methods are able to measure this parameter globally, very few can provide high resolution viscosity images. Optimizing the locality of viscosity…

光学 · 物理学 2024-12-18 C. Gentner , J. -F. Berret , P. Berto , S. Reichman , R. Kuszelewicz , G. Tessier
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