A python 3 package to retrieve ambient air monitoring data from the United States Environmental Protection Agency’s (US EPA) Air Quality System (AQS) Data Mart API v2 interface

A R extension to retrieve EPA Air Quality System Data via the AQS Data Mart API

添加中文注释, 重新按业务部门开发工程师的思维角度组织代码中的方法顺序, 使中国程序员轻松理解 AbstractQueuedSynchronizer;

Java | concurrent programming, synchronization primitives

Java多线程学习笔记

np - concurrency explore juc aqs ...

QREST (Quality Review and Exchange System for Tribes) is open-source software that provides tools to address the challenges of tribal air quality data access, validation, reporting, and submittal for multiple tribes throughout the US.

多线程相关demo

R Package for looking at annual NAAQS Pollutants

A practical demo of a serverless order service for 'GlowMart', a fictional cosmetics e-commerce app on AWS. Includes a static frontend (HTML/CSS/JS) on S3, integrated with API Gateway, SQS, Lambda, DynamoDB streams, and SNS.

项目介绍：基于Redis采用续期机制实现的可重入在线分布式锁，希望能够解决Redis分布式锁存在的本地线程未结束，锁已过期的问题。

Java Concurrency study project

build typeorm queries using query string