The resistivity ρ of a semiconductor is important for starting material as well as for semiconductor devices. Although carefully controlled during crystal growth, it is not truly uniform in the grown ingot due to variability during growth and segreg
开篇：面向对象的设计原则－类设计原则在面向对象设计中，如何通过很小的设计改变就可以应对设计需求的变化，这是令设计者极为关注的问题。为此不少OO先驱提出了很多有关面向对象的设计原则用于指导OO的设计和开发。下面是几条与类设计相关的设计原则。大体框架如下：1. 开闭原则（the Open Closed Principle OCP）2. 替换原则 (the Liskov Substitution Principle LSP)3. 依赖原则 (the Dependency Inversion Prin
Exploring CQRS and Event Sourcing The Command Query Responsibility Segregation (CQRS) pattern and event sourcing (ES) are currently generating a great deal of interest from developers and architects who are designing and building large-scale, distri
A combination of transmission electron microscopy (TEM) and laser-assisted three-dimensional atom probe (3DAP) is employed to study the nanostructure of Dy-doped CeO2, which is a promising ionic conductor. Segregation of Dy atoms at grain boundaries
