This paper describes the results of several orbital experiments of a proprietary micropropulsion ... more This paper describes the results of several orbital experiments of a proprietary micropropulsion system for nanosatellites developed by Microspace Rapid Pte Ltd of Singapore. A 3U cubesat named POPSAT-HIP1 has been developed by Microspace to demonstrate the functionality of multiple integrated payloads in orbit. One of the payloads is a Cold Gas Micropropulsion system based on the supersonic micronozzles developed by Microspace. The system has been integrated in the optical payload which serves also as pressurized propellant tank (1). Eight micronozzles have been placed on the corners and edges of the satellite to control three rotation axes and to allow for net force production for formation flight or station keeping along the orbit. The satellite has been launched on a Sun Synchronous Low Earth Orbit on 19 th June 2014 by a DNEPR vehicle from Yasny in Russia. The propulsion system has been activated as soon as the satellite has reached orbit and has remained fully functional until...
For a very gentle loading and unloading of semiconductor wafers (19) into / from reception units ... more For a very gentle loading and unloading of semiconductor wafers (19) into / from reception units (4), the semiconductor wafer (19) when inserting / removing opposite a recess (4a) of a receiving unit (4) is provided with a corresponding method / an apparatus in substantially centered and substantially parallel and / or precisely aligned to arrange.
We present a realistic design of a reflectarray antenna for installation on a 3U-CubeSat, taking ... more We present a realistic design of a reflectarray antenna for installation on a 3U-CubeSat, taking into account the dimensions of the CubeSat and space constraints afforded by the dispenser.
The transformation of betulin in emulsions by cells of the microorganisms growing on substrates c... more The transformation of betulin in emulsions by cells of the microorganisms growing on substrates containing hydrocarbon (tetradecane) as a carbon source is investigated. It is established, that the aqueous cell suspension of microorganisms-transformers of betulin is capable to emulsify chloroform (1:1) with immobilization of cells in a continuous phase. It is revealed, that the immobilized cells in such emulsions have a low level activity to transform of dissolved in chloroform betulin (conversion less than 20%). Higher activity was detected for the strain Н-43 at using of methyl-ethyl ketone as resolvent (conversion 38%).
The design and implementation of an experimental micropropulsion system, under development jointl... more The design and implementation of an experimental micropropulsion system, under development jointly by Mechatronic and INFM, is described. The flight experiment will be performed on-board the microsatellite UNISAT-2, in the framework of a cooperation between University di Roma "La Sapienza", Mechatronic and INFM. The main goal of the experiment is to have a preliminary assessment of the microthruster performance in
This paper describes the results of several orbital experiments of a proprietary micropropulsion ... more This paper describes the results of several orbital experiments of a proprietary micropropulsion system for nanosatellites developed by Microspace Rapid Pte Ltd of Singapore. A 3U cubesat named POPSAT-HIP1 has been developed by Microspace to demonstrate the functionality of multiple integrated payloads in orbit. One of the payloads is a Cold Gas Micropropulsion system based on the supersonic micronozzles developed by Microspace. The system has been integrated in the optical payload which serves also as pressurized propellant tank (1). Eight micronozzles have been placed on the corners and edges of the satellite to control three rotation axes and to allow for net force production for formation flight or station keeping along the orbit. The satellite has been launched on a Sun Synchronous Low Earth Orbit on 19 th June 2014 by a DNEPR vehicle from Yasny in Russia. The propulsion system has been activated as soon as the satellite has reached orbit and has remained fully functional until...
For a very gentle loading and unloading of semiconductor wafers (19) into / from reception units ... more For a very gentle loading and unloading of semiconductor wafers (19) into / from reception units (4), the semiconductor wafer (19) when inserting / removing opposite a recess (4a) of a receiving unit (4) is provided with a corresponding method / an apparatus in substantially centered and substantially parallel and / or precisely aligned to arrange.
We present a realistic design of a reflectarray antenna for installation on a 3U-CubeSat, taking ... more We present a realistic design of a reflectarray antenna for installation on a 3U-CubeSat, taking into account the dimensions of the CubeSat and space constraints afforded by the dispenser.
The transformation of betulin in emulsions by cells of the microorganisms growing on substrates c... more The transformation of betulin in emulsions by cells of the microorganisms growing on substrates containing hydrocarbon (tetradecane) as a carbon source is investigated. It is established, that the aqueous cell suspension of microorganisms-transformers of betulin is capable to emulsify chloroform (1:1) with immobilization of cells in a continuous phase. It is revealed, that the immobilized cells in such emulsions have a low level activity to transform of dissolved in chloroform betulin (conversion less than 20%). Higher activity was detected for the strain Н-43 at using of methyl-ethyl ketone as resolvent (conversion 38%).
The design and implementation of an experimental micropropulsion system, under development jointl... more The design and implementation of an experimental micropropulsion system, under development jointly by Mechatronic and INFM, is described. The flight experiment will be performed on-board the microsatellite UNISAT-2, in the framework of a cooperation between University di Roma "La Sapienza", Mechatronic and INFM. The main goal of the experiment is to have a preliminary assessment of the microthruster performance in
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