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Article
Health Interventions May Have Divergent Impacts on Health and Economic Equity: A Case Study of the Community-Based Hypertension Improvement Project in Ghana
Improving health and economic equity are key objectives in priority setting, particularly in low-income and middle-income countries. This study aims to assess the distributional impacts of the Community-based ...
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Article
Open AccessFree-moving-state microscopic imaging of cerebral oxygenation and hemodynamics with a photoacoustic fiberscope
We report the development of a head-mounted photoacoustic fiberscope for cerebral imaging in a freely behaving mouse. The 4.5-gram imaging probe has a 9-µm lateral resolution and 0.2-Hz frame rate over a 1.2-m...
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Article
Open AccessOptical-resolution functional gastrointestinal photoacoustic endoscopy based on optical heterodyne detection of ultrasound
Photoacoustic endoscopy shows promise in the detection of gastrointestinal cancer, inflammation, and other lesions. High-resolution endoscopic imaging of the hemodynamic response necessitates a small-sized, hi...
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Article
Open AccessHigh spatiotemporal resolution optoacoustic sensing with photothermally induced acoustic vibrations in optical fibres
Optoacoustic vibrations in optical fibres have enabled spatially resolved sensing, but the weak electrostrictive force hinders their application. Here, we introduce photothermally induced acoustic vibrations (...
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Article
Open AccessFiber laser technologies for photoacoustic microscopy
Fiber laser technology has experienced a rapid growth over the past decade owing to increased applications in precision measurement and optical testing, medical care, and industrial applications, including las...
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Article
Open AccessLow-frequency vibration measurement by a dual-frequency DBR fiber laser
A dual-frequency distributed Bragg reflector (DBR) fiber laser based sensor is demonstrated for low-frequency vibration measurement through the Doppler effect. The response of the proposed sensor is quite line...
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Article
Open AccessFiber-Laser-Based Ultrasound Sensor for Photoacoustic Imaging
Photoacoustic imaging, especially for intravascular and endoscopic applications, requires ultrasound probes with miniature size and high sensitivity. In this paper, we present a new photoacoustic sensor based ...
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Article
Open AccessCompact dual-frequency fiber laser accelerometer with sub-μg resolution
We demonstrate a compact and high-resolution dual-polarization fiber laser accelerometer. A spring-mass like scheme is constructed by fixing a 10-gram proof mass on the laser cavity to transduce applied vibrat...
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Chapter and Conference Paper
Method of Formation Cooperative Air Defense Decision Based on Multi-agent System Cooperation
In order to solve the problem of cooperative air defense for warship formation in complicated battlefield situation, a method of formation cooperative air defense decision based on multi-agent was proposed usi...
