grahar64

17 ms·

181.
Why Are Ultrasound Machines So Expensive?(maori.geek.nz)
322 points by grahar64 10y ago|182 comments
182.
Lessons from Science on How to Test Your Code(maori.geek.nz)
2 points by grahar64 10y ago|0 comments
183.
When to be a Software Architect(maori.geek.nz)
2 points by grahar64 10y ago|0 comments
184.
Keystone Metrics in DevOps: The 30 Day Project Coinbase(maori.geek.nz)
4 points by grahar64 10y ago|0 comments
185.
Self-Service DevOps Coinbase(maori.geek.nz)
2 points by grahar64 10y ago|0 comments
186.
by grahar64 11y ago
Cheers, I didn't know that about Redis. I actually really like Redis and it simplicity, it would be cool to get more options for passing messages over Redis.
187.
by grahar64 11y ago
Redis pub/sub (which I assume you are talking about as an alternative) is fine, but you have to be listening when the message is sent otherwise you miss it. Another problem is working out if where you sent it there are any listeners, w
188.
by grahar64 11y ago
Service discovery does not remove the need for load balancing. For example, if you had three nodes, each with every service and round robin service discovery to overload the system is just a matter of receiving a difficult request every thi
189.
by grahar64 11y ago
If you don't have every service talk to every other service then it is either a deployment problem or a load balance problem. If a service only say talks to instances of another service that is local, then every node in a cluster must
190.
by grahar64 11y ago
Service instances in a continuous deployment environment are coming and going all day. IF your service discovery and config breaks then everything stops, nothing can be developed or deployed until the broken stuff is fixed.
191.
by grahar64 11y ago
In my experience failure occurs more frequently when you use more and more systems in more complex ways. e.g. using HAProxy for load balancing, with Consul for service discovery and Consul template for configuration. Each of these is a sing
192.
by grahar64 11y ago
I do not understand the question. In production we use an ELB hitting multiple routers, on multiple nodes. Not sure how hashring applies to load balancing.
193.
by grahar64 11y ago
I had not heard of these before. But they look really interesting. I think they are pretty similar as it is a common pattern, and straight forward solution to many problems.
194.
by grahar64 11y ago
See above comment, in the file https://github.com/LoyaltyNZ/alchemy-framework/blob/master/s... is a description of creating a cluster of RabbitMQ nodes that can auto heal if an individual node goes down.
195.
by grahar64 11y ago
Initially when developing Alchemy we had a look at NSQ http://nsq.io and found it a little difficult (that was a year or so ago, so might be better now). Then we started looking at RabbitMQ and thought it fit our requirements be
196.
Alchemy Micro-Service Framework: Using RabbitMQ Instead of HTTP(github.com)
149 points by grahar64 11y ago|75 comments
197.
by grahar64 11y ago
I commented on the post that you can get a thermal imaging camera that plugs into your iPhone for $250 http://www.thermal.com/thermal-cameras/ . So I think that any price above that for a unit that looks like it has a
198.
by grahar64 11y ago
That is a great post. I quoted it in the post if that is cool and will read up on some those references. Do you think that a lot of that complexity would be reduced by opening it up to a wider development community through open source? How
199.
by grahar64 11y ago
How is that legal? :)
200.
by grahar64 11y ago
Cheers, that is awesome. Here is a video https://www.youtube.com/watch?v=HRLHtnza2jM It seems very limited for purchase, but would be cool to get my hands on one. I added it to the post :)
201.
by grahar64 11y ago
It would be interesting to see, I mean the argument is that my head phones don't need FDA approval and they can damage my hearing if I turn them up too loud. But some kind of limits would be important to ensure safety. And this post is
202.
by grahar64 11y ago
In the post there is a link to a paper where someone used a 40x40 array for 3d ultrasound imaging and there is a 64x array at 35MHz used for high resolution imaging of things like eyes. That is pretty low resolution for such interesting app
203.
by grahar64 11y ago
Size of market is a chicken and egg problem, if they were cheaper, the market could grow, and get more cheaper. Also FDA would only regulate for medical use, it could be sold for educational use to remove the regulations.
204.
by grahar64 11y ago
OP/author here, I also have patella tendinitis since I dislocated my patella when I was 17. This is the reason I started looking at ultrasounds, I figured that I could buy one for the $160 cost to get a scan from a doctor. I have looke
205.
Why Are Ultrasound Machines So Expensive?(maori.geek.nz)
195 points by grahar64 11y ago|132 comments
206.
9 Things That Recommender Systems Should Do(maori.geek.nz)
2 points by grahar64 11y ago|0 comments
207.
by grahar64 11y ago
My company (Loyalty New Zealand) just open sourced some parts of our "Pipeline" implementation. The Alchemy Framework https://github.com/LoyaltyNZ/alchemy-ether and https://github.com/LoyaltyN
208.
by grahar64 11y ago
It is really useful to know the authors because if you come across a researcher who has been looking at the same types of problems as you, then you read all their previous work to gain much better context of the domain. Plus then you look a
209.
What We Learnt Living in AirBnB's for 6 Months(maori.geek.nz)
4 points by grahar64 11y ago|0 comments
210.
Testing Microservices with tmux, pmux and TravisCI(maori.geek.nz)
1 points by grahar64 11y ago|0 comments

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