Classification Primary: carbon with -OH is bonded to one other carbon. Secondary: carbon with-OH is bonded to two other carbons. · Tertiary: carbon with-OH is bonded to three other carbons. Aromatic(phenol): -OH is bonded to a benzene ring

Introduction NMR is the most powerful tool available for organic structure determination. It is used to study a wide variety of nuclei:

1. Background Information 2 Structure 3. Language Point 4. Appreciation of the Text

The role of abstractions In this lecture, we are going to look at a very different style of creating large systems, a style called object oriented programming. This style focuses on breaking systems up in a different manner than those we have seen before To set the stage for this, we are first going to return to the notion of

Slide 14.4.1 Cleaning up some details of our implementation So we have seen a first pass at building an object-oriented tem, using Scheme as the base. There are a few details that The need for self-reference

Slide 15.6.1 The next stage in the evolution of our evaluator is to pull the 5. Environment as explicit parameter environment out as an explicit parameter. Up until now we could rely on just having a single environment in which to store (eva1'(pus*64)) bindings for variables. It made sense to have a global

Slide 16.1.1 Building up a language Last time, we completed building our evaluator. And as you saw, we slightly misled you. We started off saying we were going to user Scheme's lexical analyzer and parser, but then build our own evaluator, which we did initially for arithmetic

Slide 17.1.1 Normal Order(Lazy) Evaluation Over the past few lectures, we have been looking at evaluation especially how to implement eval and apply in a anguage such as Scheme, in order to define a language. What we have seen is that by creating, or specifying, eval and its associated procedures, we actually define the semantics of the

SQL( Structure Query language)是结 构化查询语言的英文缩写。SL语言是一种标 准的关系数据库查询语言,充分体现了关系数 据语言的特点和优点

主要内容(Main Contents): (一)中国钢结构的发展概况; Introduction of the Development for Stee/ Structure in China (二)冷弯薄壁型钢结构和它的应用; Cold- Formed Stee Structures& Its Applications (三)冷弯薄壁型钢结构特性与热轧型钢结构性能主要差别; The Main Behaviour Differences Between Cold-Formed Steel Hot- rolled Stee/ Structures (四)冷弯薄壁型钢结构技术规范GB50018-2002修订概况介绍