Hint around if you really feel the need, but don't just come right out and talk about it. Don't let him know your motivation. This will make them best dating site feel a little bit better about the whole concept. Feel comfortable with your body, if you're not ready, you're not. Don't take too long to make your move or someone else will take it. Items such as T-shirts can be hand-designed with a personal quote printed on to them which when worn will make them feel close to you. Don't force your smile. How to Be a Good Girlfriend and Friend. Do some research -- but not too much People are going to Google each other and that's OK, but don't go overboard with your background checks. Think about hobbies, conferences, retreats, vacation resorts, volunteer work, etc. Be natural. When you get to the end of your rope, tie a knot and hang on. (Franklin D. How do you get that special boy to like you, you may think that's hard but it's not. Do a search for jokes online! The hit and run approach is highly recommended. Instead of needing to wow them with expensive gifts, dinners, and vacations, you can please them with gestures that are less expensive. Don't be too forward: you're a human, not a god. It's great that you're a good listener but you're wrong if you think letting someone do all the talking makes for a great date. Find out her comedians or movies. Wear clothes that make you look good. Pick your clothes early. Avoid having a wrangle over it though. Still no reaction? It can be a business suit,a nurse outfit,or a sexy spy costume or others like a french maid costume and etc. You want to try and get a sense of what the person is like, which can be truly difficult. Always put your hands under her arms. Don't fall for the spell of email and text - feeling close online says nothing about whether you're compatible in real life. A date is supposed to be fun so keep it fun. What did you want to be when you were a kid? Think of some things that your partner accepts about you. If they accept and encourage this passion, appreciate that, and seek to return the favor.

SeaDevil AUV

SeaDevil is Autonomous Underwater Vehicle (AUV) designed to perform various tasks using custom electronic circuits, array of sensors, on board computer and powerful battery cells. Highly hydrodinamic body of AUV is composed mainly of carbon kevlar composite with steel reinforced ribs which enables diveing to depths up to 150m while maintaining low mass and high maneuverability. AUV is powered by four high capacity (90Ah) LiFeYPO4 battery cells which can provide high current output to power AUV propulsion system while ensuring long autonomy. AUV is expected to meet the following requirements:

  • Speed of lateral movement of at least 0.5m/s
  • low mass of vehicle (35 kg)
  • working depth up to 150m
  • autonomy of 8 hours
  • dynamic positioning
  • high manoeuvrability (6 degrees of freedom)
  • high speed of data processing
  • modularity
  • simple maintaince

Such AUV demanded development of custom electronic modules which enables maneuvering of AUV, battery management and data acquisition from sensors. Crucial requirement in development of this system was modularity of whole system which is achieved by using standard modules. Each module has its own role in submarine system, and if necessary it can be easily replaced by other modules. Beside the need of developing hardware there is a need to develop a software for embedded systems and on board computer which will enable data analysis from sensors and control over the AUV. Hardware is composed of motherboard where several modules can be attached. Modules are separated by their function, so each module can perform specific task. For now there are four types of modules that can be attached to motherboard: Module for controlling electrical motors

  • >Controls two DC motors
  • Controls two digital servo motors
  • Measures current, voltage, power consumption and temperature
  • Performs autodiagnostics

Module for battery management

  • Charges LiFeYPo4 batteries
  • Implements battery management (cell balancing, over and under voltage protection)

Module for hydrophone monitoring

  • Location tracking using hydrophones and triangulation

Module for analog measurement

  • Precise measurement of analog signals (current, voltage, pressure)

Motherboard

  • Performs diagnostics of all attached modules
  • Communicates with on board computer and modules
  • Enables mechanical and electrical bonding of all modules with motherboard

Special care in designing printed circuit board (PCB) is devoted to heat dissipation and topology of conductor wires to avoid problems relating to overheating and electromagnetic interference which can lead to irregular operation of system. Motherboard contains circuitry to perform diagnostics on all modules which is able to disconnect power from faulty modules in order to preserve integrity of AUV. AUV propulsion system

  • Four azimuth thrusters for thrust vectoring
  • Two bow thrusters for pitch control
  • Four high torques DC motors (Speed 900) for azimuth trhuster
  • For RC servo motors (Futaba S3010) for azimuth thrusters
  • Two medium torque DC motors for bow thrusters

On board sensors

  • High precision pressure sensor
  • Several temperature sensors
  • Inertial Navigation System (INS)
  • Voltage sensors for each battery cell
  • Current sensors for each electrical motor and whole battery pack
  • Three hydrophones (TC4013)
  • Two industrial HD cameras (BlueFox)