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Published in Towards AWS

·Dec 4, 2021

AWS Kinesis Video Streams — what are fragments, chunks, and MKV records?

Getting to understand the MKV based record format used by KVS — Getting to understand the MKV based record format used by KVS High Level View AWS documentation provides the following high level view of a typical Kinesis video stream based system. A producer, a video camera, cell phone or other, similar device, produces streaming audio/visual data. That data is sent to one or more…

Kinesis

5 min read

AWS Kinesis Video Streams — what are fragments, chunks, and MKV records?
AWS Kinesis Video Streams — what are fragments, chunks, and MKV records?

Published in Towards AWS

·Dec 4, 2021

AWS Kinesis Video Streams — Understanding Latency Metrics

Making sense of the latency metrics from KVS — Making sense of the latency metrics from KVS Overview Kinesis Video Streams are used to stream audio and video data from a producer to a consumer. The producer might be a video camera or even a voice call. Data Streams from the producer into KVS. Once in KVS, the data is…

Kinesis

6 min read

AWS Kinesis Video Streams — Understanding Latency Metrics
AWS Kinesis Video Streams — Understanding Latency Metrics

Published in Towards AWS

·Nov 8, 2021

AWS SQS — Rate matching between consumer and producer MicroServices

How to estimate the number of consumers needed to match a given load? — Rate Matching How do I estimate the number of consumers given a number of producers? A standard problem when building out a system is estimating the number of consumers needed to meet or exceed the demand or load generated by a set of producers. The easiest approach to tackle this problem is…

Microservices

5 min read

AWS SQS — Rate matching between consumers and producers MicroServices
AWS SQS — Rate matching between consumers and producers MicroServices

Sep 3, 2021

Clausius’ Equivalence of Transformations

Clausius wrote about the equivalence of two different types of transformations, each involving heat and work. He took as an assumption that… — Clausius wrote about the equivalence of two different types of transformations, each involving heat and work. He took as an assumption that work could be converted to heat and vice-versa, that heat could be converted to work. Specifically, he equated a process that converts heat to work with a separate…

Physics

8 min read

Clausius’ Equivalence of Transformations
Clausius’ Equivalence of Transformations

Sep 3, 2021

Clausius’ Equivalence of Transformations — Part II — Carnot Cycle

Carnot Cycle demonstrates the equality of the transformations — Carnot Cycle demonstrates the equality of the transformations In a prior blog, it was established how Clausius defined an equivalent set of transformations across a cycle. The equivalence is based on the supposition that each transformation is equal to dQ/dT; and that certain transformation types have the same impact. Specifically…

Physics

3 min read

Clausius’ Equivalence of Transformations — Part II — Carnot Cycle
Clausius’ Equivalence of Transformations — Part II — Carnot Cycle

Sep 3, 2021

Information — Part1 — Is Information extensive?

Is information extensive? does it increase as the number of physical objects that contain or reflect that information increases? — does information increase as the number of physical objects that contain or reflect that information increases? For clarity, An extensive property is a property of matter that changes as the amount of matter changes. …

Physics

5 min read

Information — Part1 — Information is non-extensive
Information — Part1 — Information is non-extensive

Sep 2, 2021

Clausius’ Equivalence of Transformations — Part III — Energy Viewpoint

A fresh look at Clausius’ transformations in terms of gravitational potential energy — A fresh look at Clausius’ transformations in terms of gravitational potential energy Clausius defines two transformations: transformation of heat from a high temperature to a low temperature conversion of heat to work and vice-versa But what do these transformations actually mean? What do they represent? Why is there a transformation…

Physics

4 min read

Clausius’ Equivalence of Transformations — Part III — Energy Viewpoint
Clausius’ Equivalence of Transformations — Part III — Energy Viewpoint

Aug 29, 2021

Musings on Entropy — Part III — Reversible and Irreversible Processes

What makes a process reversible? — What makes a process reversible? The general rule of thumb is that a process is reversible if the system can be moved from its current state back to its original state without the loss of energy due to friction or other non-conserved forces. Let’s look at the fully reversible case…

Physics

4 min read

Musings on Entropy — Part III — Reversible and Irreversible Processes
Musings on Entropy — Part III — Reversible and Irreversible Processes

Jun 27, 2021

Musings on Entropy — Part II — Anomalous Entropies

There are three cases which concern me. — Musings on Entropy — Anomalous Entropies There are three cases of interest. First, there is the case of entropy of mixing. This case encapsulates many of the key issues associated with entropy but also has a standard interpretation. The standard interpretation glosses over these issues. Both will be investigated. Second…

Physics

3 min read

Musings on Entropy — Part II — Anomalous Entropies
Musings on Entropy — Part II — Anomalous Entropies

May 9, 2021

Musings on Entropy

Entropy — what is it? A closer look at entropy for both the thermodynamic and information cases — Entropy — what is it? A closer look at entropy for both the thermodynamic and information cases The classic definition of entropy is given as S =Sum -p(i)*ln[ p(i)] This definition is equally valid for a thermodynamic system, that has states with given energies — in which case p(i) represents…

Physics

6 min read

Musings on Entropy
Musings on Entropy
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Christopher fabri

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