The writing of the paper needs to follow a certain structure, so that there will be no big logical mistakes. The following is the common structure of the writing subject I recommend to you. I hope it will help you. You can browse more exciting content (wwww.oh 100.com/bylw).

The common structures of scientific and technological articles can be generally classified into four types: parallel structure, series structure, umbrella structure and mixed structure.

parallel structure

Arrange the selected materials, and there is no logical restriction between material units. Even if the arrangement order of the materials is changed, the expression effect will not be affected. The schematic diagram of this mode is shown in Figure 2-4.

[example]

Study on current limited by intermediate charge in resonant cavity;

Ribbon beam in 1. short resonator;

2. Solid beam in cylindrical resonator.

(Note: If 1 material unit is interchanged with the second material unit, the expression effect of the article will not be affected. )

(2) Series structure

The selected materials are arranged in sequence, and there is a sequential logical relationship between material units, which cannot be interchanged at will.

The most basic form of string structure is restricted string structure, and its mode is as follows:

a 1？ a2？ a3？ An (that is, if there is no a 1, there is no a2, and so on. )

[example]

Calculation and analysis of forward current-voltage characteristics of silicon p+i n+ junction;

Carrier concentration in 1.i region

N(x)= (omitted) (1)

2. Forward pressure drop in zone I

The electric field distribution in the I region can be obtained from the formula (1).

E(x)= (omitted) (2)

So the pressure drop in region I

(3)

Section 1 [formula (1)] has no conclusion, that is, there is no subsequent derivation and result [formula (3)].

In addition to the restricted string structure mode, there are increasing (or decreasing) string structure and time series structure. The former can give people a gradual sense of rhythm through the orderly arrangement of material units; The latter can be expressed in the order of time and space, giving people a clear sense of hierarchy.

(3) Umbrella structure

This structure refers to the structure that one argument at a certain level is supported by two or more arguments, that is, only two or more material units at the same level can be established at the same time, and the material units at the next level can be established. The schematic diagram of the mode is shown in Figure 2-5.

[example]

It is proved that the sum of three internal angles of an arbitrary triangle is 180 degrees.

The above is a single-layer umbrella structure, and there are also multi-layer umbrella structures, the schematic diagram of which is shown in Figure 2-6.

(a 1) The sum of the three internal angles of an acute triangle is 180o.

(a2) The sum of three internal angles of an obtuse triangle is 180o, and the sum of three internal angles of an arbitrary triangle is 180o.

(a3) The sum of the three internal angles of a right triangle is 180o.

a

(4) Composite structure

In fact, when writing a thesis, we don't have to stick to an umbrella model. According to the internal logical connection of the content of the paper, how to arrange and expand the essential parts of the argument such as explanation, reasoning and refutation is conceived, so as to explain the problem comprehensively, accurately and concisely and use it flexibly. Composite structure? . These modes are shown in Figure 2-7, Figure 2-8 and Figure 2-9.

Umbrella structure is often used to write the text of academic papers, and umbrella structure is the main framework of the paper. Its specific form is usually shown in Figure 2- 10.

Titles and serial numbers are often used in academic papers because they can clearly highlight the main content of the paper, make the structure clear, and have a neat, orderly and gradual rhythm aesthetic feeling.

Title and serial number can be divided into several levels, and the commonly used numbering systems are:

I. (Title)

Two. (Subtitle)

1. (subtitle)

(1) (state the facts)

;