1. 分析 a. What is a logical data mapping and what does it mean to ETL team? b. What are the primary goals of the data discovery phase of the data warehouse project? c. How is the system-of-record determined? 2. 结构 a. What are the four basic data flow
Get a complete introduction to Salt, the widely used Python-based configuration management and remote execution tool. This practical guide not only shows system administrators how to manage complex infrastructures with Salt, but also teaches develop
The highly c-oriented titanium(Ti) film is deposited on glass substrates by electron beam(EB) evaporation based on the study of effects of the substrate temperature (Ts) and deposition rate (Rd) on its properties. It is found that the Ts is the crit
Orleans 项目基本上被认为是并行计算模型 Actor Model 的分布式版本。 虽然已经存在 Erlang 和 Akka 这样利用 Actor Model 的框架，用户仍然需要做很多工作来确保那些 actors 保持在线以及能够处理故障和恢复。Orleans 框架着眼复杂项目和 actor 管理，让用户能够编写分布式项目而无需担心。 关于自家的云计算平台，微软最大的一个卖点就是开发人员可以使用.NET、Visual Studio和其它编程工具来编写Azure应用程序。不过这并不
We observe the morphological change and grain structure of Ni foil when it is ablated with femtosecond laser pulses. Scanning electron microscopy and ˉeld emission transmission electron microscopy are used to study the nature of the morphology and gr
The microstructure characteristics of laser forming repaired (LFR) Ti60 (Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.3Nb) as-deposited and annealed samples are analyzed. The microstructure of as-deposited repaired zone (RZ) consists of epitaxial columnar prior \
Morphology evolution of prior \beta grains of laser solid forming (LSF) Ti-xAl-yV (x \leq 11,y \leq 20) alloys from blended elemental powders is investigated. The formation mechanism of grain morphology is revealed by incorporating columnar to equiax
Upon massive generation of anisotropic grains of azo dye methyl orange in a gelatin film exposed to active polarized light, a cluster of micro crystals with optical axes of similar orientations has been produced. The anisotropy observed has been foun
We have prepared ZnO films with ∼700 nm sized grains on silicon substrates by a simple hydrothermal process. Then, metal-insulator-semiconductor (MIS) structured devices based on such ZnO films have been fabricated in order to achieve low-th
