Results 1 to 10 of about 13,644,325 (294)

Low Loss Hollow-Core Connecting-Circle Negative-Curvature Fibres

IEEE Photonics Journal, 2021
Hollow-core negative-curvature fibres have been the focus of current research, but how to reduce the loss of hollow-core negative-curvature fibres is a serious problem. This paper proposes a new structure of hollow-core negative-curvature fibres, that is
Boyi Yang, Xuesheng Liu, Wenzeng Jia, Shu Liu, Kai Mei, Tingwu Ge, Dengcai Yang, Youqiang Liu, Tian Lan, Zhiyong Wang   +9 more
doaj   +1 more source

Design and Study of Low Loss, High Birefringence Quasi-Symmetric Hollow-Core Anti-Resonant Fiber

Photonics
Low-loss, high-birefringence, bend-resistant hollow-core anti-resonant fibers for infrared wavelengths have important applications in the fields of precision interferometric sensing, laser systems, and optical communications. In this paper, an eight-tube
Binhao Gao, Fang Tan, Dexiao Chen, Shunfa Cui, Zhiyong Hou, Yuze Zhang, Weichun Wang, Yumeng Ban, Dechun Zhou   +8 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Ultra low-loss low-efficiency diffraction gratings

Optics Express, 2005
The realization of ultra low-loss dielectric reflection gratings with diffraction efficiencies between 7% and 0.02% is presented. By placing the grating beneath the highly reflective layerstack scattering was significantly reduced. This concept allows the all-reflective coupling of high laser radiation to high finesse cavities, thereby circumventing ...
Clausnitzer, T., Kley, E., Tünnermann, A., Bunkowski, A., Burmeister, O., Danzmann, K., Schnabel, R., Duparre, A., Gliech, S.   +8 more
openaire   +3 more sources

High-Power Mid-Infrared Supercontinuum Light Source Based on High-Quality Fusion of Large-Diameter Silica Fiber and Fluorotellurite Fiber

IEEE Photonics Journal
Mid-infrared supercontinuum (MIR-SC) light sources have garnered significant attention in fields such as material detection and national defence. Currently, mid-infrared lasers suffer from issues including low output power, a narrow spectral range, and a
Xuan Wang, Ying Yang, Chuanfei Yao, Jichen Pan, Yamin Liu, Xuelian Yang, Pingxue Li   +6 more
doaj   +1 more source

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan, Mariah Wright‐Nadkarni, Mohamed S. Abdelbaki, Girish Dhall   +3 more
wiley   +1 more source

Ultra-Low-Loss Hollow-Core Anti-Resonance Optical Fiber Based on Hybrid Nested Elliptical Structure

IEEE Photonics Journal
This work presents a hollow-core anti-resonant fiber with a hybrid cladding that combines vertically arranged circular tubes with twin-nested capillaries and laterally arranged elliptical tubes with single-nested capillaries.
Yingchao Liu, Yue Zhang, Peigang Cao
doaj   +1 more source

Safety and Effectiveness of a High‐Dose, Tailored Tissue Plasminogen Activator Therapy Protocol: A Joint Pediatric Hematology and Cardiac ICU Quality Improvement Initiative Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric thromboembolism is increasingly encountered in critical care. Systemic thrombolysis with tissue plasminogen activator (tPA) facilitates vessel or valve patency, yet pediatric‐specific protocols remain undefined, and safety concerns persist. Objective To evaluate the efficacy and safety of a tailored, prolonged systemic tPA
Eran Shostak, Oded Gilad, Yael Feinstein, Sigal Nakav, Ofer Schiller, Joanne Yacobovich   +5 more
wiley   +1 more source

Design and Experiment of Flexible Threshing Device with Variable Stiffness for Corn

Agriculture
In order to solve the problem of the high damage rate of corn with a high moisture content in the Huanghuaihai region, according to the mechanical characteristics of corn in the Huanghuaihai region, we designed a flexible threshing device with a ...
Lin Niu, Zehao Zha, Haoran Yang, Jie Ma, Qinghao He, Yanan Wang, Yipeng Cui, Xiang Li, Duanyang Geng   +8 more
doaj   +1 more source

Compact Balanced Substrate Integrated Waveguide Filter With Low Insertion Loss

IEEE Access, 2019
A balanced substrate integrated waveguide (SIW) filter is proposed by etching transverse slots on the top surface. The SIW structures between each two adjacent slots are resonators operating at TE20δ mode for differential-mode (DM) operation and ...
Zhidan Shen, Kai Xu, Gire Merphy Mbongo, Jin Shi, Yongjie Yang   +4 more
doaj   +1 more source