asteroza + injection   66

Some sort of CCS in the form of direct injection of CO2 into wet concrete?
CCS  CO2  injection  concrete  materials  science  research  technology  construction 
5 weeks ago by asteroza
New 'Early Bird' Code Injection Technique Discovered - Cyberbit
Hollowing out legit windows processes and using APC to force immediate execution is sneaky
malware  research  code  injection  windows  security  hacking  pentesting 
april 2018 by asteroza
Christopher Glyer on Twitter
Reminder that CSV's aren't as safe as you thought
macro  script  injection  CSV  excel  security  hacking  pentesting 
march 2018 by asteroza
Interesting 3D printer work, using a robot arm mounted pump/needle to inject UV curable resin into a suspension gel. After squirting in resin (which can even be sucked back out in case of mistakes), the suspension gel tank is UV exposed to harden the resin for later removal. The suspension makes certain structures easier to do as the object to be printed in continuously supported.
manufacturing  support  fabber  technology  bed  injection  suspension  printing  robot  research  printer  deposition  needle  3D  resin  fabbing  arm  tank  gel  Delicious 
august 2013 by asteroza
3045.pdf (application/pdf Object)
Interesting new variation on the VASIMR theme, using a helicon to get high density plasma injected into an IEC wiffleball with an outlet hole for the rocket plume (which will be more like a plasma torch). Apparently also get some thrust vectoring by rotating the wiffleball exit point physically by rotating the ball grid.
HIIPER  VASIMR  helicon  injection  plasma  IEC  inertial  electrostatic  confinement  grid  wiffleball  polywell  ion  acceleration  accelerator  rocket  design  space  propulsion  research  technology  Delicious 
april 2012 by asteroza
LightSail Energy, Inc.
Some kind of stealth startup in the CAES field, using some sort of hydraulic based air compression system, and using water mist to capture compression heat and to reduce tank temperature post compression.
CAES  compressed  air  energy  storage  green  startup  hydraulic  compression  compressor  mist  water  injection  Delicious 
september 2011 by asteroza
British to Test Geoengineering Scheme - Technology Review
I think the geoengineering test results will probably be inconclusive due to scale, but the materials science and manufacturing research to make the early test's 1Km tall water pipe, and the projected follow on 20km tall vertical pipe for sulfur dioxide particles is more applicable to other industries. The 20 Km pipe would face a minimum raw 6000 bar pressure at the base, and there are wind/torsion loads too. That assumes it is one monolithic pipe though. Easy trick is embedding an electric cable/tether, and putting electric boost pumps at intervals so the bottom raw pressure is less.
geoengineering  terraforming  climate  control  alteration  test  experiment  LTA  vertical  water  pipe  stratospheric  particle  injection  engineering  research  materials  science  manufacturing  Delicious 
september 2011 by asteroza
CO2-Free Engine Powers Up
A magnesium burning steam cycle engine, with a proposed regeneration of magnesium reactant from magnesium oxide cycle output via solar powered laser. I wonder what the energy costs of regenerating the reactant are, because the laser is energy intensive, and there probably needs to be some mechanical treatment of the magnesium to make it a fine powder.
mitsubishi  magnesium  injection  cycle  MAGIC  steam  hydrogen  engine  research  oxide  laser  recycling  regeneration  green  energy  Delicious 
june 2011 by asteroza
SustainX Energy Storage Solutions
Interesting use of water to both keep the compression isothermal, and to store heat for later when expanding to keep the expansion cycle isothermal. But they are advocating using compressed air tankage (gas cyclinder) rather than salt domes, so there is a high capital cost of tanks issue that needs to be addressed. Hrm, this ends up being similar to the Energy Bag guys, since they would use seawater to both release and recover heat via heat exchanger/recuperator. But if you are getting worked up over heat recovery, why not go for hotter compression cycles and store the heat as a molten salt?
SustainX  isothermal  compressed  air  energy  storage  CAES  ICAES  Water  spray  mass  injection  green  Delicious 
june 2011 by asteroza

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