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Description: 这是一个时频分析中关于gabor变换的程序，此程序分离频率的效果不错。
Gabor变换：
式中a，b为常数，a代表栅格的时间长度，b代表栅格的频率长度
式中的 是一维信号x(t)的展开系数，h(t)是一母函数，展开
基函数是h(t)由作移位和调制生成的，
- This in a time frequency analysis about the gabor
transformation procedure, this procedure separation frequency effect
is good. Gabor transformation: In the formula a, b is the constant, a
represents the grid the time length, b on behalf of the grid frequency
length in the formula is the unidimensional signal x (t) launches the
coefficient, h (t) is a female function, launches the primary function
is h (t) by makes shifting and the modulation production,
Platform: |
Size: 1143 |
Author: lynyan |
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Description: 问题描述:
一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度））
初始条件：t=0时水等于100度
边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1）
2.杯壁绝热，第二类边界条件
图形显示格式,取过圆柱轴的截面温度变化将其做成动画.
-Problem description : a cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k / (c * p), k is the thermal conductivity coefficient of 0.6006 Coke / (m * * seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k / h, h for 1) 2. Beibi insulation, The second category boundary conditions graphics format, cylindrical shaft for the cross section of its temperature changes caused animation.
Platform: |
Size: 1222 |
Author: saifu |
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Description: 一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度））
初始条件：t=0时水等于100度
边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1）
2.杯壁绝热，第二类边界条件
-cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k / (c * p), k is the thermal conductivity coefficient of 0.6006 Coke / (m * * seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k / h, h for 1) 2. Beibi insulation, the second boundary condition
Platform: |
Size: 1212 |
Author: 洪峰 |
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Description: gps.c:GPS主代码
constant.h:GPS的头文件
PC temperature control .c:电脑温度控制
code.c:数字血压计的代码
Computer side.c:无线键盘电脑端代码
keyboard side.c:无线键盘键盘端代码
Platform: |
Size: 26461 |
Author: feng |
Hits:
Description: 与清华大学版的《数据结构》匹配二叉树的实现：BITREE1.CPP：为主程序，其中实现了递归算法以及非递归算法的前序遍历，中序遍历，后序遍历。TSTACK1.H: 为头文件，其中定义了一些常量的值，其中也包括了书中第三章的栈的实现，只需要将注解符去掉即可。运行环境为：VC++6 或 TC3-and Tsinghua University version of the "data structure" matching the achievement of a binary tree : BITREE1.CPP : mainly procedures, which achieved a recursive and non - recursive algorithm of algorithms preorder, preorder, after preorder. TSTACK1.H : for the first document, which defines a number of the value of a constant, which also include a third chapter of the book stack the realization simply have the website notes can be removed. Operating environment : VC 6 or TC3
Platform: |
Size: 2314 |
Author: 宏伟 |
Hits:
Description: /*PL/0编译系统C版本头文件pl0.h*/
/*
typedef enum
{
false,
true
} bool;
*/
#define norw 13 /*关键字个数*/
#define txmax 100 /*名字表容量*/
#define nmax 14 /*number的最大位数*/
#define al 10 /*符号的最大长度*/
#define amax 2047 /*地址上界*/
#define levmax 3 /*最大允许过程嵌套声明层数[0,levmax]*/
#define cxmax 200 /*最多的虚拟机代码数*/
/*符号*/
enum symbol{
nul, ident, number, plus, minus,
times, slash, oddsym, eql, neq,
lss, leq, gtr, geq, lparen,
rparen, comma, semicolon, period, becomes,
beginsym, endsym, ifsym, thensym, whilesym,
writesym, readsym, dosym, callsym, constsym,
varsym, procsym,
};
#define symnum 32
/*名字表中的类型*/
enum object{
constant,
variable,
procedur,
};
/*虚拟机代码*/
enum fct{
lit, opr, lod,
sto, cal, inte,
jmp, jpc,
};
#define fctnum 8
/*虚拟机结构代码*/
struct instruction
{
/*454*/
enum fct f; // 虚拟机代码指令
int l; //引用层与声明层的层次差
int a; //根据f的不同而不同
};
FILE * fas; //输出名字表
FILE * fa; //输出虚拟机代码
FILE * fa1; //输出源文件及其各行对应的首地址
FILE * fa2; //输出结果
bool listswitch; //显示虚拟机代码与否
bool tableswitch; //显示名字与否
char ch; //获取字符的缓冲区，getch使用
enum symbol sym; //当前的符号
char id[al+1]; //当前ident，多出的一个字节用于存放0
int num; //当前number
int cc,ll; //getch使用的计数器，cc表示当前字符(ch)的位置
int cx; //虚拟机代码指针，取值范围[0，cxmax-1]
char line[81]; //读取行缓冲区
char a[al+1]; //临时符号，多出的一个字节用于存放0
struct instruction code[cxmax]; //存放虚拟机代码的数组
char word[norw][al]; //保留字
enum symbol wsym[norw]; //保留字对应的符号值
enum symbol ssym[256]; //单字符的符号值
char mnemonic[fctnum][5]; //虚拟机代码指令名称
bool declbegsys[symnum]; //表示声明开始的符号集合
bool statbegsys[symnum]; //表示语句开始的符号集合
bool facbegsys[symnum]; //表示因子开始的符号集合
//名字表结构
struct tablestruct
{
char name[al]; //名字
enum object kind; //类型：const，var，array or procedure
int val; //数值，仅const使用
int level; //所须层，仅const不能用
int adr; //地址，仅const不能用
int size; //需要分配的数据空间，仅procedure使用
};
struct tablestruct table[txmax]; //名字表
FILE * fin;
FILE * fout;
char fname[al];
int err; //错误计数器
//当函数中发生fatal error时，返回-1告知调用它的函数，最终退出程序
#define getsymdo if(-1==getsym()) return -1
#define getchdo if(-1==getch()) return -1
#define testdo(a,b,c) if(-1==test(a,b,c)) return -1
#define gendo(a,b,c) if(-1==gen(a,b,c)) return -1
#define expressiondo(a,b,c) if(-1==expression(a,b,c)) return -1
#define factordo(a,b,c) if(-1==factor(a,b,c)) return -1
#define termdo(a,b,c) if(-1==term(a,b,c)) return -1
#define conditiondo(a,b,c) if(-1==condition(a,b,c)) return -1
#define statementdo(a,b,c) if(-1==statement(a,b,c)) return -1
#define constdeclarationdo(a,b,c) if(-1==constdeclaration(a,b,c)) return -1
#define vardeclarationdo(a,b,c) if(-1==vardeclaration(a,b,c)) return -1
void error(int n);
int getsym();
int getch();
void init();
int gen(enum fct x,int y ,int z);
int test(bool *s1,bool *s2,int n);
int inset(int e,bool *s);
int addset(bool *str,bool * s1,bool * s2,int n);
int subset(bool *str,bool * s1,bool * s2,int n);
int mulset(bool *str,bool * s1,bool * s2,int n);
int block(int lev,int tx,bool * fsys);
void interpret();
int factor(bool * fsys,int * ptx,int lev);
int term(bool * fsys,int * ptx,int lev);
int condition(bool * fsys,int * ptx,int lev);
int expression(bool * fsys,int * ptx,int lev);
int statement(bool * fsys,int * ptx,int lev);
void listcode(int cx0);
int vardeclaration(int *ptr, int lev,int *ptx);
int constdeclaration(int *ptr, int lev,int *ptx);
int position(char * idt,int tx);
void enter(enum object k,int * ptx,int lev, int * pdx);
int base(int l,int * s,int b)
Platform: |
Size: 25139 |
Author: xqq771084591 |
Hits:
Description: 与清华大学版的《数据结构》匹配二叉树的实现：BITREE1.CPP：为主程序，其中实现了递归算法以及非递归算法的前序遍历，中序遍历，后序遍历。TSTACK1.H: 为头文件，其中定义了一些常量的值，其中也包括了书中第三章的栈的实现，只需要将注解符去掉即可。运行环境为：VC++6 或 TC3-and Tsinghua University version of the "data structure" matching the achievement of a binary tree : BITREE1.CPP : mainly procedures, which achieved a recursive and non- recursive algorithm of algorithms preorder, preorder, after preorder. TSTACK1.H : for the first document, which defines a number of the value of a constant, which also include a third chapter of the book stack the realization simply have the website notes can be removed. Operating environment : VC 6 or TC3
Platform: |
Size: 2048 |
Author: 宏伟 |
Hits:
Description: 这是一个时频分析中关于gabor变换的程序，此程序分离频率的效果不错。
Gabor变换：
式中a，b为常数，a代表栅格的时间长度，b代表栅格的频率长度
式中的 是一维信号x(t)的展开系数，h(t)是一母函数，展开
基函数是h(t)由作移位和调制生成的，
- This in a time frequency analysis about the gabor
transformation procedure, this procedure separation frequency effect
is good. Gabor transformation: In the formula a, b is the constant, a
represents the grid the time length, b on behalf of the grid frequency
length in the formula is the unidimensional signal x (t) launches the
coefficient, h (t) is a female function, launches the primary function
is h (t) by makes shifting and the modulation production,
Platform: |
Size: 1024 |
Author: lynyan |
Hits:
Description: 问题描述:
一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度））
初始条件：t=0时水等于100度
边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1）
2.杯壁绝热，第二类边界条件
图形显示格式,取过圆柱轴的截面温度变化将其做成动画.
-Problem description : a cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 Coke/(m** seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k/h, h for 1) 2. Beibi insulation, The second category boundary conditions graphics format, cylindrical shaft for the cross section of its temperature changes caused animation.
Platform: |
Size: 1024 |
Author: saifu |
Hits:
Description: 一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度））
初始条件：t=0时水等于100度
边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1）
2.杯壁绝热，第二类边界条件
-cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 Coke/(m** seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k/h, h for 1) 2. Beibi insulation, the second boundary condition
Platform: |
Size: 1024 |
Author: 洪峰 |
Hits:
Description: gps.c:GPS主代码
constant.h:GPS的头文件
PC temperature control .c:电脑温度控制
code.c:数字血压计的代码
Computer side.c:无线键盘电脑端代码
keyboard side.c:无线键盘键盘端代码-gps.c: GPS master code constant.h: GPS the header files PC temperature control. c: computer temperature control code.c: Digital Blood Pressure Monitor code Computer side.c: wireless keyboard-side code computer keyboard side.c: wireless keyboard keyboard-side code
Platform: |
Size: 26624 |
Author: feng |
Hits:
Description: 一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度））
初始条件：t=0时水等于100度
边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1）
2.杯壁绝热，第二类边界条件
图形显示格式,取过圆柱轴的截面温度变化将其做成动画.
-A cup of boiling water for cooling, the cylinder model, the bottom radius of 0.05m, the high-0.1m, an ambient temperature of 20 degrees, the initial water temperature of 100 degrees is four-dimensional transport equation equation (constant a ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 J/(m* s* degrees)) initial conditions: t = 0 when the water equivalent to 100 degrees boundary conditions: 1. up and down the wall are free cooling, the third boundary condition, the ambient temperature maintained at 20 degrees (H = k/h, h check one) 2.杯壁insulation, the second boundary condition graphical display format, check-off section of cylindrical shaft temperature change to make animation.
Platform: |
Size: 4096 |
Author: 周胜灵 |
Hits:
Description: IAR工程模板初探,包含工程设置等常数的说明以及使用方法.可与Protues中的LPC系列ARM实现仿真(已测试).绝对原创.-Project templates of IAR, including settings such as project description, as well as constant use. Protues in with LPC series ARM achieve simulation (tested). Absolute originality.
Platform: |
Size: 47104 |
Author: 程度 |
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Description: 这个程序用来计算高为h，半径为a的圆柱形导体圆筒区域的电场分布，上底电位设置为常数U0。-This programm computes the electric field in a cylinder made of conductor, the potential of the upper face is set to be constant U0.
Platform: |
Size: 173056 |
Author: barak |
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Description: Smith Chart:
The Smith chart, invented by Phillip H. Smith (1905-1987),is a graphical aid or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits.Use of the Smith chart utility has grown steadily over the years and it is still widely used today, not only as a problem solving aid, but as a graphical demonstrator of how many RF parameters behave at one or more frequencies, an alternative to using tabular information. The Smith chart can be used to represent many parameters including impedances, admittances, reflection coefficients, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability. The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis.-Smith Chart:
The Smith chart, invented by Phillip H. Smith (1905-1987),is a graphical aid or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits.Use of the Smith chart utility has grown steadily over the years and it is still widely used today, not only as a problem solving aid, but as a graphical demonstrator of how many RF parameters behave at one or more frequencies, an alternative to using tabular information. The Smith chart can be used to represent many parameters including impedances, admittances, reflection coefficients, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability. The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis.
Platform: |
Size: 59392 |
Author: cindy |
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Description: 本代码为牛顿-SOR迭代法求解非线性方程组。其调用格式为[r,m]=mulNewtonSOR(F,x0,w,h,eps) 其中F:方程组，x0：方程组初始解，w：SOR迭代因子，h：数值积分常数，eps：根的精度，m：迭代步数。-The code for the Newton-SOR iteration method for solving nonlinear equations. Its call format [r, m] = mulNewtonSOR (F, x0, w, h, eps) where F: equations, x0: the initial solution of equations, w: SOR iterative factor, h: numerical integration constant, eps: the root of the accuracy, m: the number of iterative steps.
Platform: |
Size: 1024 |
Author: 锦夏 |
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Description: The Smith chart, invented by Phillip H. Smith (1905-1987),[1][2] is a graphical aid or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits.[3] Use of the Smith chart utility has grown steadily over the years and it is still widely used today, not only as a problem solving aid, but as a graphical demonstrator of how many RF parameters behave at one or more frequencies, an alternative to using tabular information. The Smith chart can be used to represent many parameters including impedances, admittances, reflection coefficients, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability.[4][5] The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis.-The Smith chart, invented by Phillip H. Smith (1905-1987),[1][2] is a graphical aid or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits.[3] Use of the Smith chart utility has grown steadily over the years and it is still widely used today, not only as a problem solving aid, but as a graphical demonstrator of how many RF parameters behave at one or more frequencies, an alternative to using tabular information. The Smith chart can be used to represent many parameters including impedances, admittances, reflection coefficients, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability.[4][5] The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis.
Platform: |
Size: 2048 |
Author: hazhiriq200 |
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Description: 扩散系统之浓度分布的装置。管中储放静止液体B，高度为L=10 ㎝，放置于充满A 气体的
环境中。假设与B 液体接触面之浓度为3
C 0 0.01mol m A = ，且此浓度不随时间改变
而改变，即在操作时间内( h = 10天)维持定值。气体A 在液体B 中之扩散系数为
D m s AB
= 2×10− 9 2 。试决定以下两种情况下，气体A溶于液体B中之流通量(flux)。
(a) A 与B 不发生反应；
(b) A 与B 发生以下之反应
A+ B→C ， A A − r = kC
其反应速率常数k = 2×10− 7 s− 1。
-Diffusion system of concentration reference device shown in Figure 3. Tube in the store still liquid B, L = 10 cm height, placed in full A gas environment. Assuming the contact surface of the liquid with the B concentration of 3 C 0 0.01mol m A =, and this concentration does not change with time and change, that is, the operating time (h = 10 days) to maintain constant. Gas A in liquid B, the diffusion coefficient D ms AB = 2 × 10-9 2. Decided the following two test cases, the gas dissolved in liquid B in the A liquid (flux). (A) A and B do not react (b) A and B of the following reaction occurs A+ B → C, AA- r = kC, the reaction rate constant k = 2 × 10-7 s-1.
Platform: |
Size: 3072 |
Author: zhouyanghua |
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Description: 数值方法计算传热问题实例
边长为200×200mm的二维矩形材料内的稳态温度分布。上侧和左侧维持恒壁温；下侧为绝热；右侧为对流换热条件。具体参数为：
材料的导热系数=20w/m• k；
上侧温度t1=100℃
右侧流体温度tf=20℃ 表面传热系数 h分别为1w/m2• k和100 w/m2• k
左侧温度t2=20℃
下侧绝热-Numerical method to calculate the heat transfer problem instance side of 200 × 200mm rectangular two-dimensional steady-state temperature distribution within the material. On the left side and to maintain constant wall temperature lower side of insulation the right side of the convective heat transfer conditions. Specific parameters are: thermal conductivity of the material = 20w/m • k on the side of the temperature t1 = 100 ℃ right side of the fluid temperature tf = 20 ℃ surface heat transfer coefficient h were 1w/m2 • k and 100 w/m2 • k temperature t2 = 20 ℃ left side of the insulation under
Platform: |
Size: 1024 |
Author: aleko |
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Description: 利用msp430单片机实现数控恒流源，内含两个c文件和一个h文件。-The MSP430 MCU NC constant current source, containing two c file and a h file.
Platform: |
Size: 6144 |
Author: 李鹏 |
Hits: