EW Software Consultants, Inc.

02/05/2023

04/05/2021

https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/massively-parallel-processing-mpp-architecture

Hash-distributed tables
A hash distributed table can deliver the highest query performance for joins and aggregations on large tables.

To shard data into a hash-distributed table, a hash function is used to deterministically assign each row to one distribution. In the table definition, one of the columns is designated as the distribution column. The hash function uses the values in the distribution column to assign each row to a distribution.

The following diagram illustrates how a full (non-distributed table) gets stored as a hash-distributed table.

07/04/2020

ENVI
ENVI is software for processing and analyzing geospatial imagery. ENVI handles hyperspectral, LiDAR, and other remotely sensed data sets easily with both wizard based approaches and allowing users to program operations. The main benefit of using ENVI is for the analysis and visualization of spectral and hyperpsectral data. Currently, ENVI is developing comprehensive GIS tools to integrate within the ESRI software family. ENVI has internal workflows and allows users to customize procedures with their IDL programming language.

ENVI® is designed to be used by anyone who relies on imagery and data to make decisions. It delivers expert-level results across the board, regardless of a user's prior experience with imagery.

ENVI® is a flexible solution that can be customized to meet specific project needs and can be deployed and accessed from the desktop, in the cloud, and on mobile devices. Fully integrated with ArcGIS for Desktop and ArcGIS for Server from Esri, users can access ENVI® tools directly within the Arc environment to add image analysis capabilities to their GIS models and applications.

ENVI® supports imagery from today’s newest and most popular satellite and airborne sensors, including multispectral, hyperspectral, panchromatic, LiDAR, infrared, thermal, radar, HDF5, full-motion video, LAZ, ASCII, and NET CDF-4. ENVI® includes a comprehensive suite of image analysis tools that allowing customers to access proven algorithms to quickly, easily, and accurately analyze imagery.

https://www.harris.com/solution/envi
https://www.dataone.org/

06/12/2020

http://etutorials.org/XML/xml+data+management/Part+II+Native+XML+Databases/Chapter+3.+eXist+Native+XML+Database/3.3+System+Architecture+Overview/

Though eXist provides pluggable storage backends (see Figure 3.1), storing documents either in the internal XML store or an external relational database system (e.g., MySQL or PostgreSQL), it has been designed to be a pure native XML database. As a proof of concept for the indexing and storage archi...

05/13/2019

https://www.computer.org/csdl/magazine/co/2009/04/mco2009040017/13rRUxlgy71

03/31/2019

5G Core Network Functions

https://www.grandmetric.com/2018/03/02/5g-core-network-functions/

03/23/2019

https://blog.newrelic.com/engineering/what-is-kubernetes/

Modern software companies are now deploying thousands of container instances daily, so how do they manage all that complexity? Enter the age of Kubernetes.

01/24/2019

http://www.beingjavaguys.com/2013/03/java-collection-framework.html

12/13/2018

https://phys.org/news/2012-01-faster-than-fast-fourier.html

12/05/2018

Model View Controller Architecture