slashdotdash
Joined 14 years ago
Karma
913
Submissions
108
Member since
Apr 18
Recent submissions
Comment · 2 years ago
Comment · 6 years ago
“The issue occurred because some files containing positive test results exceeded the maximum file size that takes these data files and loads then into central systems, officials said.”
Comment · 6 years ago
The Spider’s Web is a documentary film which covers this subject in detail. Well worth watching if you have an interest in finding out more.
“An investigation into the world of Britain’s secrecy jurisdictions and the City of London. Today, up to half of global offshore wealth may be hidden in British offshore jurisdictions and Britain and its offshore jurisdictions are the largest global players in the world of international finance.”
Comment · 6 years ago
Elixir has the NimbleParsec library which generates parsing code that takes advantage of pattern matching for high performance and low memory usage due to the BEAM virtual machine optimisations.
Comment · 6 years ago
Vehicle to grid may actually improve battery health and keep them healthier for longer.
> “This new research into the potentials of V2G shows that it could actually improve vehicle battery life by around ten percent over a year.”
This requires intelligent usage where the battery state of charge is kept within a limited window, not fully charged or drained.
[1] https://warwick.ac.uk/newsandevents/pressreleases/clean_ener...
[2] https://www.sciencedirect.com/science/article/pii/S036054421...
Comment · 6 years ago
For anyone interested in event sourcing with the actor model I've built an open source Elixir library called Commanded (https://github.com/commanded/commanded) which takes advantage of Erlang's BEAM VM to host aggregate processes. There's also an event store implemented in Elixir which uses Postgres for storage (https://github.com/commanded/eventstore).
The actor model provides the guarantee that requests to a single instance are processed serially, while requests to different instances can be processed concurrently. Distributed Erlang allows these instances to be scaled out amongst a cluster of nodes with transparent routing of commands to the instance, regardless of which connected node it is running on.
In Elixir and Erlang, the OTP platform provides the building blocks to host an aggregate instance as a process (as a `GenServer`). Following the "functional core, imperative shell" style I model the domain code as pure functions with the host process taking care of any IO, such as reading and appending the aggregate's events.
Comment · 6 years ago
> In reality, it's impossible for a households to get a contract that follows market rate, you always pay the same per kWh no matter if it's Sunday or Monday, windy or calm.
In the UK you can use the Agile tariff from Octopus Energy (https://octopus.energy/agile/) which has half hourly dynamic pricing per electricity kWh. The next 24hrs worth of prices are released each day around 4pm and follow market cost. There’s a 12p/kWh surcharge between 4pm and 7pm during peak demand. Used in conjunction with a smart meter it bills per half hour usage and can go negative.
Twice in the last two week’s it has gone below zero due to recent storms. It’s a great tariff if you have an electric car to charge in the early hours when prices are cheapest and can reduce usage during the peak three hours. A home battery would also help out as it could be charged during cheap periods and discharged when prices are too high.
I think it is also crucial to not allow deep discharge of the battery too frequently. Ideally keep the battery charge in the range of 40-80%. My usage is relatively low so I am mostly within that range.
Infrequently I have charged to 100% for longer days away from home. Enabling low power mode helps to prolong battery life on these occasions too.