Results 71 to 80 of about 223,255 (303)

Criteria for establishing shielding of multi-detector computed tomography (MDCT) rooms [PDF]

, 2017
The aim of this work is to compare two methods used for determining the proper shielding of computed tomography (CT) rooms while considering recent technological advances in CT scanners.
Aroua, A., Baechler, S., Bochud, F. O., Schmidt, S., Trueb, P. R., Verdun, F. R.   +5 more
core  

Suppression of HD-cooling in protogalactic gas clouds by Lyman-Werner radiation

, 2010
It has been shown that HD molecules can form efficiently in metal-free gas collapsing into massive protogalactic halos at high redshift. The resulting radiative cooling by HD can lower the gas temperature to that of the cosmic microwave background, T_CMB=
Abel, Abgrall, Abgrall, Abgrall, Abgrall, Abgrall, Biermann, Birnboim, Bromm, Bromm, Bromm, Clark, Dabrowski, Dalgarno, Dijkstra, Dijkstra, Draine, Fernandez, Galli, Galli, Glover, Glover, Glover, Glover, Glover, Glover, Haiman, Haiman, Haiman, Haiman, Hansen, Heger, J. Wolcott-Green, Jasche, Johnson, Johnson, Kirkman, Komatsu, Kreckel, Kuhlen, Lipovka, Machida, McGreer, Nagakura, Nakamura, O'Meara, Oh, Oh, Omukai, Omukai, Ripamonti, Ripamonti, Savin, Savin, Schaerer, Shang, Shapiro, Shchekinov, Shchekinov, Stacy, Stasielak, Stenrup, Susa, Tan, Tumlinson, Uehara, Vasiliev, Whalen, Yoshida, Yoshida, Yoshida, Z. Haiman   +71 more
core   +1 more source

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source

Measurement of the radiation field surrounding the Collider Detector at Fermilab [PDF]

, 2003
We present here the first direct and detailed measurements of the spatial distribution of the ionizing radiation surrounding a hadron collider experiment.
D'Auria, Saverio, Hocker, Andy, Kordas, Kostas, McGimpsey, Susan, Nicolas, Ludovic, Tesarek, Richard J., Worm, Steven   +6 more
core   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento, Daniela F. Santos, Tuane C. R. G. Vieira, Tiago F. Outeiro   +3 more
wiley   +1 more source

A large-scale magnetic shield with 10^6 damping at mHz frequencies

, 2015
We present a magnetically shielded environment with a damping factor larger than one million at the mHz frequency regime and an extremely low field and gradient over an extended volume.
Altarev, I., Bales, M., Beck, D. H., Chupp, T., Fierlinger, K., Fierlinger, P., Kuchler, F., Lins, T., Marino, M. G., Niessen, B., Petzoldt, G., Schläpfer, U., Schnabel, A., Singh, J. T., Stoepler, R., Strum, M., Stuiber, S., Taubenheim, B., Voigt, J.   +18 more
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Optimization Analysis of Electric Field Shielding in Multi-Target Areas Using Transmission Lines Based on AHP-Improved PSO [PDF]

Journal of Electromagnetic Engineering and Science
To address the optimization problem of electric field intensity in multi-target areas under transmission lines, this work suggests combining the enhanced improved particle swarm optimization (IPSO) with the analytical hierarchy process (AHP).
Haiyang Zhang, Lirong Xie, Yufeng Wang, Enzhong Gong, Yong Wang, Zhan Yu, Liantao Shi, Zhengguo Li   +7 more
doaj   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

Circular-ring tied arc loaded excellent metamaterial absorber for EMI shielding of Wi-Fi signal and impurity sensing of cooking oil

Engineering Science and Technology, an International Journal
This paper demonstrates a unique symmetric structure excellent metamaterial absorber (MMA) loaded with circular-ring tied arcs. The FR4 substrate-based MMA can accomplish 98.88 % and 99.81 % absorption maximums at the Wi-Fi and 5G frequencies of 2.4 GHz ...
Abdullah Al Mahfazur Rahman, Mohammad Tariqul Islam, Md. Moniruzzaman, Mandeep Singh, Abdulwadoud A. Maash, Haitham Alsaif, Mohamed S. Soliman   +6 more
doaj   +1 more source