StarShip SHield Emmiters: Is for repair and healing
Have no idea how it effects said abilities like extend shields or Science Team
StarShip Shield Systems: Increases your Shield Hitpoints based on the level of the skill
Have no idea how many points are added per skill level to shield total hitpoints.
StarShip Shield Performance: adds a flat bonus to your shield Power levels.
Have no idea how many bonus shield power points are given per skill level
StarShip Electro-plasma systems: Effects the rate of transfer of power onboard one's ship, including the transfer rate of Emergency power to xxxxx abilities. In theory it should make EPTS more effective.
Have no idea how much power-transfer rates are improved by this skill per level.