Results 41 to 50 of about 7,941,196 (306)

Tracing the origins of mode coupling for beam quality optimization in high-power fiber laser delivery systems

open access: yesHigh Power Laser Science and Engineering
Suppressing mode degradation is the key issue for high-power laser delivery; however, diagnosing mode degradation in its entirety, ranging from the contents and origins to locations, has always been a major obstacle.
Xiao Chen   +7 more
doaj   +1 more source

Operational results with fast automatic beam-based LHC collimator alignment [PDF]

open access: yes, 2013
The CERN Large Hadron Collider (LHC) is the largest and highest-energy particle accelerator ever built. It is designed to collide particles at a centre-of-mass energy of 14 TeV to explore the fundamental forces and constituents of matter.
Wollmann, Daniel   +6 more
core   +1 more source

Method for optimising the performance of PML in anchor‐loss limited model via COMSOL

open access: yesIET Science, Measurement & Technology, 2022
Perfectly matched layer has been used for solving anchor‐loss limited quality factor in the Micro electromechanical systems. However, setting up a well‐behaved perfectly matched layer requires users to change the parameters of a perfectly matched layer ...
Peng Li, Jun‐Yu Ou, Jize Yan
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

Beam Quality Optimization in Fiber Lasers via Selective Mode Attenuation Using Femtosecond-Laser-Inscribed Cladding Modulations in Few-Mode Fibers

open access: yesPhotonics
Beam quality directly determines the output performance and application effectiveness of high-power fiber lasers. Conventional control methods, such as coiling and tapering, degrade mechanical reliability and cause localized heating, while specialty ...
Minnan Wu   +5 more
doaj   +1 more source

Chemotherapy for Spinal Cord Intramedullary Pediatric Low‐Grade Glioma—A Systematic Literature Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko   +5 more
wiley   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

FLASH undulator BPM commissioning and beam characterization results [PDF]

open access: yes, 2015
Recently, the commissioning of FLASH2 has started, a new soft X-ray FEL undulator line at the DESY FLASH facility. In the FLASH2 undulator intersections, the beam positions are measured by 17 cavity beam position monitor (CBPM) pick-ups and electronics ...
Lipka, D. (author)   +12 more
core   +1 more source

Calibration of ionization chamber in megavoltage x-ray field of medical linear accelerator [PDF]

open access: yesNuclear Technology and Radiation Protection
Ionization chambers were calibrated regarding absorbed dose to water in MeV X-ray fields of a medical linear accelerator, with nominal maximum energies of 6 MeV and 15 MeV.
Pham Hong-Lam   +13 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

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