Application: In new days no one have much more time to observing the hygenic level of a human.SMART HYGIENE MONITORING SYSTEM device is observing the hygenic level of an unhygenic place link public/community toilets, clinics, hospitals, operation theatres, kitchens and it also alert when it detect unhygenics levels. Mainly the device observe theammonia, sulphur dioxide, carbon monoxide, carbon dioxide, volatile organic compounds, and particulate matterwith the help of sensors.In simple terms, the device can sense how dirty an area is and send online alerts to the authorities to clean it up.

Level Monitoring and Control with dry Pump run protection using Ultrasonic Sensor and Android Applcation via bluetooth HC-05.

One of the major problems faced by most of the countries is the issue of water scarcity in the world. The scarcity is mainly due to the wastage of the water. There is a need to control the water wastage to save the environment and water resources. Water level monitoring system is one of the techniques to address the control of water wastage. It observes the level of water and provides the information to the registered users through wireless. In view of this, Bluetooth module based Water Level Monitoring system is an innovative idea that will inform the users about the level of liquid and will prevent it from overflowing. The water level monitoring system is a automatic process to detect and indicate the level of water in the reservoirs, overhead tank or any other storage containers, etc. All the householders are storing the water in overhead tanks by using the motor pumps. When the water is stored in the tank, no one can identify the level of water and also, no one can know when the water tank will be filled. So, there is an overflow of water in the tank, which results wastage of energy and water. To resolve this type of problems by using implementation of water level monitors and control systems using wireless technology which will transmit the information to the smart phone and indicate the level of water in the overhead tanks. And also to design a contactless water level indicator and controller using ultrasonic sensor with DRY PUMP RUN PROTECTION.

Tunneling FET transistors desihn using TCAD Tool.

The tunnel field-effect transistor (TFET) belongs to the family of so-called steep-slope devices that are currently being investigated for ultra-low-power electronic applications. A key feature of the TFET, which is critical for low-power switching, is the possibility for an inverse sub threshold slope, S, below the limit of 60 mV/dec for normal FETs.

The fundamental challenge for realizing commercially competitive TFETs is a limited on-current level, which is typically addressed by creating higher doping levels and abrupt doping profiles. Aschematic of an n-channel TFET architecture which incorporates a highly doped p+ source region, a near intrinsic channelregion and n+ drain region.

TFET is simply a gated p-i-n diode, which is operating under reverse bias condition. In a MOSFET the source of carrier injection mechanism is thermal injection but a TFET utilizes band-to-band tunneling as a source carrier injection mechanism. The band diagrams of the n-channel TFET in the OFF and ON states. In the OFF state, there is a wide potential barrier between the source and the channel, as a result no tunneling is occurring. Only a very small leakage current exists. But when the gate voltage exceeds the threshold voltage, the potential barrier between the channel and the source becomes narrow enough to allow a significant tunneling current, which is called ON state. Because of the different source carrier injection mechanism in the TFET compare to a MOSFET, it can achieve sub-60-mV/dec S (where S is the sub threshold slope). The feasibility of the TFET for low-power applications; some interesting studies have been reported.

A remote control vehicle is defined as any mobile device that is controlled by a means that does not restrict its motion with an origin external to the device. This is often a radio control device, cable between control and vehicle, or an infrared controller. A remote control vehicle (also called as RCV) differs from a Robot in that the RCV is always controlled by a human and takes no positive action autonomously.

One of the key technologies which underpin this field is that of Remote vehicle control. It is vital that a vehicle should be capable of proceeding accurately to a target area;.