Added(A)/Deleted(D) following books

 R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch3.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch3.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch3_1.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch3_1.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch4.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch4.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch4_1.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch4_1.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch5.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch5.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch5_1.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch5_1.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch6.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch6.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch6_1.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch6_1.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch7.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch7.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch7_1.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch7_1.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch8.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch8.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch8_1.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch8_1.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch9.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch9.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/ch9_1.ipynb" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/ch9_1.ipynb
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/screenshots/3.png" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/screenshots/3.png
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/screenshots/3_1.png" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/screenshots/3_1.png
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/screenshots/5.png" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/screenshots/5.png
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/screenshots/5_1.png" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/screenshots/5_1.png
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/screenshots/9.png" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/screenshots/9.png
R  "_Applied_Thermodynamics_and_Engineering\t_by_T._D._Eastop_and_A._Mcconkey/screenshots/9_1.png" -> Applied_Thermodynamics_and_Engineering_by_T._D._Eastop_and_A._Mcconkey/screenshots/9_1.png
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch15_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch16_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch17_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch18_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch19_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch20_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch21_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch22_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch23_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch24_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch25_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch26_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch27_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch28_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch29_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch30_2.ipynb
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/screenshots/1RefractionOfLaserLight_2.png
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/screenshots/2PropertiesOfImage_2.png
A  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/screenshots/3PositionOf1DarkFringe_2.png
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch10_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch11_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch12_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch13_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch1_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch2_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch3_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch4_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch5_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch6_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch7_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch8_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/Ch9_2.ipynb
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/screenshots/opNip3_2.png
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/screenshots/opNipV3_2.png
A  Electronic_Devices_And_Circuits_by_B._Kumar_And_S._B._Jain/screenshots/transferChar3_2.png
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter10_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter10_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter11_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter11_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter12_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter12_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter13_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter13_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter14_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter14_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter2_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter2_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter3_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter3_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter4_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter4_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter5_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter5_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter6_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter6_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter7_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter7_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter8_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter8_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter9_2.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/Chapter9_3.ipynb
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/screenshots/Ch13AngularDisplacement_1.png
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/screenshots/Ch13AngularDisplacement_2.png
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/screenshots/Ch13LateralDisplacement_1.png
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/screenshots/Ch13LateralDisplacement_2.png
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/screenshots/Ch13LongitudinalDisplacement_1.png
A  Fiber_Optics_and_Optoelectronics_by_R._P._Khare/screenshots/Ch13LongitudinalDisplacement_2.png
A  Machine_Design_by_U.C._Jindal/Ch10_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch11_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch12_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch13_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch14_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch15_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch16_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch17_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch18_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch19_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch20_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch21_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch22_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch23_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch24_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch25_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch26_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch27_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch28_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch29_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch30_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch31_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch3_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch4_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch5_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch6_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch7_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch8_2.ipynb
A  Machine_Design_by_U.C._Jindal/Ch9_2.ipynb
A  Machine_Design_by_U.C._Jindal/screenshots/Chapter-3stressgraph_2.png
A  Machine_Design_by_U.C._Jindal/screenshots/Chapter-_8AdditionalLoad_2.png
A  Machine_Design_by_U.C._Jindal/screenshots/Chapter11_-_strengthofrevet_2.png
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/README.txt -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/README.txt
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter10.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter10.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter10_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter10_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter11.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter11.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter11_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter11_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter1_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter1_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter2.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter2.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter2_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter2_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter3.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter3.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter3_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter3_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter4.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter4.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter4_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter4_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter5.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter5.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter5_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter5_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter6.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter6.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter6_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter6_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter7.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter7.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter7_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter7_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter8.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter8.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter8_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter8_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter9.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter9.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter9_1.ipynb -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/chapter9_1.ipynb
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(56).png -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(56).png
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(56)_1.png -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(56)_1.png
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(57).png -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(57).png
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(57)_1.png -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(57)_1.png
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(58).png -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(58).png
R  _Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(58)_1.png -> Nuclear_Chemistry_through_Problems_by__H._J._Arnikar_and_N._S._Rajurkar/screenshots/Screenshot_(58)_1.png
D  df_by_f/muktesh.ipynb
D  df_by_f/padmavathi.ipynb
D  df_by_f/prashanth.ipynb
D  df_by_f/screenshots/blank1.png
D  df_by_f/screenshots/blank1_(another_copy).png
D  df_by_f/screenshots/blank1_(copy).png
D  df_by_f/screenshots/blank1_(copy)_1.png
D  df_by_f/screenshots/blank1_1.png
D  df_by_f/screenshots/blank1_2.png
D  dss_by_asd/README.txt
D  dss_by_asd/namratha.ipynb
D  dss_by_asd/screenshots/screenshot2.png
D  dss_by_asd/screenshots/screenshot4.png
D  dss_by_asd/screenshots/streamplot.png
D  fdgfg_by_fgs/arijit.ipynb
D  fdgfg_by_fgs/screenshots/48007040.png
D  fdgfg_by_fgs/screenshots/acrofi_india.png
D  fdgfg_by_fgs/screenshots/acrofi_india_1.png
D  testing_by_test/screenshots/screenshot6.png
D  testing_by_test/screenshots/screenshot6_1.png
D  testing_by_test/screenshots/screenshot6_2.png
D  testing_by_test/screenshots/screenshot6_3.png
D  testing_by_test/screenshots/screenshot6_4.png
D  testing_by_test/screenshots/screenshot6_5.png
D  testing_by_test/vivek.ipynb
D  testing_by_test/vivek_1.ipynb

1 files changed, 350 insertions, 0 deletions

diff --git a/Machine_Design_by_U.C._Jindal/Ch28_2.ipynb b/Machine_Design_by_U.C._Jindal/Ch28_2.ipynb
new file mode 100644
index 00000000..9f1fda0b
--- /dev/null
+++ b/Machine_Design_by_U.C._Jindal/Ch28_2.ipynb
@@ -0,0 +1,350 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Ch:28 Worm and worm wheel set"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 28-1 - Page 726"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "G is 30   \n",
+      "\n",
+      "CD is 100 mm  \n",
+      "\n",
+      "d  is 50 mm  \n",
+      "\n",
+      "D  is 150 mm  \n"
+     ]
+    }
+   ],
+   "source": [
+    "from __future__ import division\n",
+    "from math import sqrt, pi\n",
+    "Z1=1#\n",
+    "Z2=30#\n",
+    "q=10#\n",
+    "m=5#\n",
+    "d=q*m#\n",
+    "D=m*Z2#\n",
+    "#let the speed reduction ratio be G\n",
+    "G=Z2/Z1#\n",
+    "CD=(d+D)/2#\n",
+    "print \"G is %0.0f   \"%(G)#\n",
+    "print \"\\nCD is %0.0f mm  \"%(CD)#\n",
+    "print \"\\nd  is %0.0f mm  \"%(d)#\n",
+    "print \"\\nD  is %0.0f mm  \"%(D)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 28-2 - Page 726"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "i is 52   \n",
+      "\n",
+      "CD is 248 mm  \n",
+      "\n",
+      "pa is 25.13 mm  \n",
+      "\n",
+      "da is 96 mm  \n",
+      "\n",
+      "df is 60.975 mm  \n",
+      "\n",
+      "Da is 431.841 mm  \n",
+      "\n",
+      "Df is 396.816 mm  \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import tan, atan, cos,pi\n",
+    "Z1=1#\n",
+    "Z2=52#\n",
+    "q=10#\n",
+    "m=8#\n",
+    "i=Z2/Z1#\n",
+    "CD=((m*q)+(m*Z2))/2#\n",
+    "lamda=atan(Z1/q)#\n",
+    "d=q*m#\n",
+    "da=m*(q+2)#\n",
+    "df=m*(q+2-(4.4*cos(lamda)))#\n",
+    "pa=m*pi#\n",
+    "D=m*Z2#\n",
+    "Da=m*(Z2+(4*cos(lamda))-2)#\n",
+    "Df=m*(Z2-2-(0.4*cos(lamda)))#\n",
+    "print \"i is %0.0f   \"%(i)#\n",
+    "print \"\\nCD is %0.0f mm  \"%(CD)#\n",
+    "print \"\\npa is %0.2f mm  \"%(pa)#\n",
+    "print \"\\nda is %0.0f mm  \"%(da)#\n",
+    "print \"\\ndf is %0.3f mm  \"%(df)#\n",
+    "print \"\\nDa is %0.3f mm  \"%(Da)#\n",
+    "print \"\\nDf is %0.3f mm  \"%(Df)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 28-3 - Page 727"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Ptw=Pag is 1591.5 N  \n",
+      "\n",
+      "Paw=Ptg is 5487 N  \n",
+      "\n",
+      "Prw=Prg  is 1188 N  \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt, pi,sin,cos,atan\n",
+    "Z1=2#\n",
+    "Z2=60#\n",
+    "q=10#\n",
+    "m=5#\n",
+    "P=6000#\n",
+    "N=1440#\n",
+    "u=0.08#\n",
+    "alpha=20*pi/180#\n",
+    "lamda=atan(Z1/q)#\n",
+    "d=m*q#\n",
+    "w=2*pi*N/60#\n",
+    "T=P/w#\n",
+    "Ptw=T*10**3/(d/2)#\n",
+    "a=cos(alpha)#\n",
+    "b=cos(lamda)#\n",
+    "x=sin(alpha)#\n",
+    "y=sin(lamda)#\n",
+    "Paw=Ptw*(((a*b)-(u*y))/((a*y)+(u*b)))#\n",
+    "Prw=Ptw*y/((a*y)+(u*b))#\n",
+    "#Paw=Ptw*((cos(alpha)*cos(lambda))-(u*sin(lambda)))/((cos(alpha)*sin(lambda))+(u*cos(lambda)))#\n",
+    "#Prw=Ptw*((sin(alpha))/((cos(alpha)*sin(lambda))+(u*cos(lambda))))#\n",
+    "print \"Ptw=Pag is %0.1f N  \"%(Ptw)#\n",
+    "print \"\\nPaw=Ptg is %0.0f N  \"%(Paw)#\n",
+    "print \"\\nPrw=Prg  is %0.0f N  \"%(Prw)#\n",
+    "  \n",
+    "#The difference in the value is due to rounding-off the values."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 28-4 - Page 728"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "P is 1.2 kW  \n",
+      "\n",
+      "Po is 1.047 kW  \n",
+      "\n",
+      "Pf is 0.153 kW  \n"
+     ]
+    }
+   ],
+   "source": [
+    "from __future__ import division\n",
+    "from math import sqrt, pi, cos,atan,tan,sin\n",
+    "Z1=2#\n",
+    "Z2=40#\n",
+    "q=8#\n",
+    "m=5#\n",
+    "d=q*m#\n",
+    "P=1.2#\n",
+    "lamda=atan(Z1/q)#\n",
+    "N=1000#\n",
+    "Vt=2*pi*N*20/(60*1000)#\n",
+    "Vs=Vt/cos(lamda)#\n",
+    "u=0.032#\n",
+    "alpha=20*pi/180#\n",
+    "x=cos(alpha)#\n",
+    "y=tan(lamda)#\n",
+    "z=(cos(lamda))/sin(lamda)#\n",
+    "n=(x-(u*y))/(x+(u*z))#\n",
+    "#Let power output be Po\n",
+    "Po=P*n#\n",
+    "#Let power lost in friction be Pf\n",
+    "Pf=P-Po#\n",
+    "print \"P is %0.1f kW  \"%(P)#\n",
+    "print \"\\nPo is %0.3f kW  \"%(Po)#\n",
+    "print \"\\nPf is %0.3f kW  \"%(Pf)#\n",
+    "  "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 28-5 - Page 729"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "n is 0.865   \n",
+      "\n",
+      "delT is 18.73 deg  \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt, pi, cos,atan,tan,sin\n",
+    "Z1=2#\n",
+    "Z2=54#\n",
+    "q=10#\n",
+    "m=8#\n",
+    "P=4000#\n",
+    "A=1.8#\n",
+    "K=16#\n",
+    "N=1000#\n",
+    "u=0.028#\n",
+    "lamda=atan(Z1/q)#\n",
+    "alpha=20*pi/180#\n",
+    "d=m*q#\n",
+    "Vt=2*pi*N*d/(2*60*1000)#\n",
+    "Vs=Vt/cos(lamda)#\n",
+    "x=cos(alpha)#\n",
+    "y=tan(lamda)#\n",
+    "z=(cos(lamda))/sin(lamda)#\n",
+    "n=(x-(u*y))/(x+(u*z))#\n",
+    "delT=P*(1-n)/(K*A)#\n",
+    "print \"n is %0.3f   \"%(n)#\n",
+    "print \"\\ndelT is %0.2f deg  \"%(delT)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 28-6 - Page 729"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Sb is 8286 N  \n",
+      "\n",
+      "Sw is 3362 N  \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt, pi, cos,atan,tan,sin\n",
+    "Z1=1#\n",
+    "Z2=30#\n",
+    "q=10#\n",
+    "m=6#\n",
+    "#Let the ultimate strength of gear is sigut\n",
+    "#Let the allowable strenth of wheel is sigb\n",
+    "sigut=450#\n",
+    "sigb=84#\n",
+    "N=1200#\n",
+    "n=N/Z2#\n",
+    "alpha=20*pi/180#\n",
+    "d=m*q#\n",
+    "D=Z2*m#\n",
+    "b=3*d/4#\n",
+    "V=2*pi*n*D/(2*60*1000)#\n",
+    "Cv=6/(6+V)#\n",
+    "y=0.154-(0.912/Z2)#\n",
+    "Y=pi*y#\n",
+    "Sb=sigb*b*Cv*m*Y#\n",
+    "K=0.415#\n",
+    "Sw=b*D*K#\n",
+    "print \"Sb is %0.0f N  \"%(Sb)#\n",
+    "print \"\\nSw is %0.0f N  \"%(Sw)#\n",
+    "\n",
+    "#The difference in the value of Sb is due to rounding-off the values."
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 2",
+   "language": "python",
+   "name": "python2"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.9"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}