Results 81 to 90 of about 39,830 (276)
UDWDM-PON using low-cost coherent transceivers with limited tunability and heuristic DWA [PDF]
A new Passive Optical Network (PON) for access, making use of Ultra Dense Wavelength Division Multiplexing (UDWDM) by densely spacing channels at few GHz, and introducing the “wavelength-to-the-user” concept, is proposed.
Polo Querol, Víctor +4 more
core +2 more sources
Abstract Background Obesity increases the risks and complexity of laparoscopic surgeries. Preoperative very low‐calorie diets (VLCDs) can demonstrate significant preoperative weight loss. However, the optimal VLCD duration remains unclear. Excessive loss of muscle mass associated with VLCDs may elevate surgical and postoperative risks. This study aimed
Gerald Wei Shen Wong +4 more
wiley +1 more source
阵列波导光栅 ( AWG)是实现密集波分复用 ( DWDM)光网络的理想器件 ,插入损耗是它的一个重要性能指标 .文章在综述了多种减小 AWG器件插入损耗方法的基础上 ,分析了如何使用楔形波导结构来降低模式失配所导致的耦合损耗 .这种方法可以在不增加器件制作难度的同时大大降低 AWG的插入损耗 ,并且适用于各种材料和结构的 ...
万莉, 吴亚明, 王跃林
doaj
Efficient protection schemes for hybrid WDM/TDM passive optical networks [PDF]
Hybrid WDM/TDM Passive Optical Network (PON) is a promising candidate for next-generation optical access (NGOA) solutions as it is able to offer a high splitting ratio and consequently achieves a relatively low cost and power consumption on a per-user ...
Chen, Jiajia +5 more
core +1 more source
ABSTRACT Objective The aim of this study was to estimate the prevalence of sarcopenia and examine its associations with glycaemic control, blood pressure and lifestyle behaviours among older adults in Korea. Methods We conducted a secondary analysis of the 2023 Korea National Health and Nutrition Examination Survey that included 1394 adults aged 65 ...
Kyeongmin Jang
wiley +1 more source
Resource Allocation With Minimum Outage Probability in Multicarrier Multicast Systems
Several innovative applications are emerging that require significant multimedia data transmissions, which unfortunately, current communication systems struggle to provide.
Duc-Phuc Vuong +2 more
doaj +1 more source
First starlight spectrum captured using an integrated photonic micro-spectrograph
Photonic technologies have received growing consideration for incorporation into next-generation astronomical instrumentation, owing to their miniature footprint and inherent robustness.
Allington-Smith +18 more
core +1 more source
Evaluation of the Reliability and Lifetime Prediction of 150 GHz Athermal AWG Module with Metal Temperature Compensation Board [PDF]
Kwang-Su Yun +5 more
openalex +1 more source
ABSTRACT Aim To characterise nurses' perspectives on factors that influence their ability to provide patient‐centered nursing care for autistic patients in a large urban hospital setting. Design Qualitative exploratory study. Methods We conducted semi‐structured interviews via Zoom with nurses from a large urban hospital serving primarily adult ...
Amy Watson‐Grace +7 more
wiley +1 more source
On-Chip Sub-Picometer Continuous Wavelength Fiber-Bragg-Grating Interrogator
Miniaturized fiber-Bragg-grating (FBG) interrogators are of interest for applications in the areas where weight and size controlling is important, e.g., airplanes and aerospace or in-situ monitoring.
Yuan Zhuang +6 more
doaj +1 more source

