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Focusing Ultrasound (FUS) can be used to modulate diffusing light in tissue. In this method, diffused photons are modulated in the ultrasound focus area. Detecting these FUS modulated (or tagged) photons can provide spatially accurate information from the focus area. However, probably the biggest challenge in this method is to enable sufficient tagging photons since most of the illuminated and detected photons do not propagate thru the FUS target area resulting in a low number of tagged photons when compared to the background unmodulated light. Therefore, current applications utilizing such hybrid technique are still limited. Our study aims to optimize illumination and detection of photons that propagate through a FUS target area by adjusting the relative position and angle of a light source-detector pair. For the simulations, the K-wave toolbox was utilized to calculate the nonlinear acoustic pressure field in the discretized numerical model from the FUS source. Furthermore, light propagation in the model is simulated using an open-source Monte Carlo algorithm. The model design is a backward detection mode which is suitable for direct application to the human body.

A Drone is a new invention or era in last recent years which is very effective; Drones are commonly known as Unmanned Aircraft System (UAV) or Flying Robots. Previously Unmanned Aircraft System (UAV) was used by militaries all around the world for different kind of technologies like Intelligence, Surveillance and Reconnaissance Operations. The use of Drones has been using continuously in different and wide areas, like Cargo, Parcel Delivery, Internet provision in remote areas, Emergency Aid, Industrial Asset monitoring pipelines, surveillance in crowded areas, providing food in flooded area and many more. Drones are a microcosm of the Internet of Things(IOT), also it has been realized that Drones have potential to increase the business by using the Technology for their Organizations.

Opening the door and closing the door by hands is very dangerous ,it may be the cause of getting virus if someone opens the door by his/her infected hands so, Automatic Door opening without pulling the door or pushing the door is an important aspect, it can be done by placing the sensors near by the door areas from where Sensors can detect the movement of an object within the range of sensors, after that a signal is sent to the microcontroller of Arduino by the sensors which controls the servo motor to open the gate and close the gate. We can place these kinds of sensors in Hotels, Malls, Theatres where a person needs to open the door by some other person hands or himself after installing this technology we don’t need to open the door by hands but the doors will automatically opens/close by sensing the objects within the range of infrared rays, and Ultrasonic sensors. This results shows that implementation of this smart sensing technology is cheap, effective and reliable for the systems like Hotels, Malls , shopping centers etc, it can also be used at our home .

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