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, 440 insertions, 0 deletions

diff --git a/Machine_Design_by_U.C._Jindal/Ch11_2.ipynb b/Machine_Design_by_U.C._Jindal/Ch11_2.ipynb
new file mode 100644
index 00000000..81cd13ac
--- /dev/null
+++ b/Machine_Design_by_U.C._Jindal/Ch11_2.ipynb
@@ -0,0 +1,440 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Ch:11 Riveted joints"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-1 - Page 322"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " P is 60000 N     \n",
+      "\n",
+      " Ts is 122.23 MPa     \n",
+      "\n",
+      " sigb is 120 MPa     \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import pi\n",
+    "t=20#\n",
+    "p=100#\n",
+    "d=25#\n",
+    "sigt=40#\n",
+    "P=(p-d)*t*sigt#\n",
+    "Ts=(4*P)/(pi*d**2)#\n",
+    "sigb=P/(d*t)#\n",
+    "print \" P is %0.0f N     \"%(P)#\n",
+    "print \"\\n Ts is %0.2f MPa     \"%(Ts)#\n",
+    "print \"\\n sigb is %0.0f MPa     \"%(sigb)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-2 - Page 322"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " P is 115.5 kN     \n",
+      "\n",
+      " Ts is 81.7 MPa     \n",
+      "\n",
+      " sigb is 175 N/mm**2     \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import pi\n",
+    "t=22#\n",
+    "t1=5*t/8#\n",
+    "d=30#\n",
+    "p=100#\n",
+    "sigt=75#\n",
+    "P=(p-d)*t*sigt#\n",
+    "Ts=(2*P)/(pi*d**2)#\n",
+    "sigb=P/(d*t)#\n",
+    "P=P*10**-3\n",
+    "print \" P is %0.1f kN     \"%(P)#\n",
+    "print \"\\n Ts is %0.1f MPa     \"%(Ts)#\n",
+    "print \"\\n sigb is %0.0f N/mm**2     \"%(sigb)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-3 - Page 323"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " p is 100 mm     \n",
+      "\n",
+      " n is 0.00      \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import pi\n",
+    "t=15#\n",
+    "t1=5*t/8#\n",
+    "d=25#\n",
+    "n=2#\n",
+    "Ta=80#\n",
+    "sigta=100#\n",
+    "sigba=120#\n",
+    "Ps=n*1.875*pi*d**2*Ta/4#\n",
+    "Pb=n*d*t*sigba#\n",
+    "p=Pb/(t*Ta)+d#\n",
+    "Pp=p*t*Ta#\n",
+    "n=Pb/Pp#\n",
+    "print \" p is %0.0f mm     \"%(p)#\n",
+    "print \"\\n n is %0.2f      \"%(n)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-4 - Page 323"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " d is 24 mm     \n",
+      "\n",
+      " n1 is 6      \n",
+      "\n",
+      " Pt is 225280 N      \n",
+      "\n",
+      " Pt2 is 232960 N     \n",
+      "\n",
+      " Pt3 is 279040 N     \n",
+      "\n",
+      " n2 is 88      \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt, pi\n",
+    "b=200#\n",
+    "t=16#\n",
+    "d=6*sqrt(t)#\n",
+    "sigta=80#\n",
+    "Ta=60#\n",
+    "sigba=100#\n",
+    "Pt=(b-d)*t*sigta#\n",
+    "Ps=1.875*pi*d**2*Ta/4#\n",
+    "Pb=d*t*sigba#\n",
+    "n1=Pt/Pb#\n",
+    "n1=6#\n",
+    "Pt2=((b-(2*d))*t*sigta)+Pb#\n",
+    "Pt3=((b-(3*d))*t*sigta)+(3*Pb)#\n",
+    "Pp=b*t*sigta#\n",
+    "n2=Pt/Pp#\n",
+    "n2=n2*100#\n",
+    "print \" d is %0.0f mm     \"%(d)#\n",
+    "print \"\\n n1 is %0.0f      \"%(n1)#\n",
+    "print \"\\n Pt is %0.0f N      \"%(Pt)#\n",
+    "print \"\\n Pt2 is %0.0f N     \"%(Pt2)#\n",
+    "print \"\\n Pt3 is %0.0f N     \"%(Pt3)#\n",
+    "print \"\\n n2 is %0.0f      \"%(n2)#\n",
+    "#Answer to strength of rivet in bearing 'Pb' is calculated incorrectly in the book, hence Pt2,Pt3 is calculated subsequently incorrect."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-5 - Page 324"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " e is 371.7 mm     \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import atan\n",
+    "a=50#\n",
+    "b=75#\n",
+    "P=36*10**3#\n",
+    "d=24#\n",
+    "Ta=60#\n",
+    "n=9#\n",
+    "A=pi*d**2/4#\n",
+    "Td=P/(n*A)#\n",
+    "theta=atan(b/a)#\n",
+    "Ts=54.64#\n",
+    "r2=90.184#\n",
+    "e=A*29575.7/P#\n",
+    "print \" e is %0.1f mm     \"%(e)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-6 - Page 325"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " d is 12 mm     \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt,pi\n",
+    "P=12*10**3#\n",
+    "Tmax=100#\n",
+    "n=6#\n",
+    "e=50+50+(5/2)#\n",
+    "T=P*e#\n",
+    "Td=P/n#\n",
+    "ra=125#\n",
+    "k=T/((2*125**2)+(2*75**2)+(2*25**2))#\n",
+    "Tr=(k*ra)+Td#\n",
+    "A=Tr/Tmax#\n",
+    "d=sqrt(A*4/pi)#\n",
+    "d=12#\n",
+    "print \" d is %0.0f mm     \"%(d)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-7 - Page 326"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " n is 80      \n"
+     ]
+    }
+   ],
+   "source": [
+    "from __future__ import division\n",
+    "from math import sqrt,pi\n",
+    "t=15#\n",
+    "d=6*sqrt(t)#\n",
+    "d=24#\n",
+    "sigta=75#\n",
+    "sigba=105#\n",
+    "Ta=60#\n",
+    "n=4#\n",
+    "Pt=n*pi*d**2*Ta/4#\n",
+    "x=d*t*sigta#\n",
+    "y=2*t*sigta#\n",
+    "p=(Pt+x)/y#\n",
+    "p=60#\n",
+    "C=4.17#\n",
+    "pmax=(C*t)+41.28#\n",
+    "Pt1=(y*p)-x#\n",
+    "Ps=n*pi*d**2*Ta/4#\n",
+    "Pb=n*d*t*sigba#\n",
+    "S=2*p*t*sigta#\n",
+    "n=Pt1/S#\n",
+    "n=n*100#\n",
+    "print \" n is %0.f      \"%(n)#  "
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-8 - Page 327"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " n is 95      \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt,pi\n",
+    "D=1500#\n",
+    "p=2#\n",
+    "nt=0.75#\n",
+    "sigut=420#\n",
+    "FOS=5#\n",
+    "sigta=sigut/FOS#\n",
+    "t=p*D/(2*sigta*nt)#\n",
+    "t=24#\n",
+    "d=6*sqrt(t)#\n",
+    "d=30#\n",
+    "Ta=330/5#\n",
+    "sigba=640/5#\n",
+    "Ps=2*1.875*pi*(d**2)*Ta/4#\n",
+    "p=(Ps/(t*sigta))+d#\n",
+    "p=117#\n",
+    "t1=5*t/8#\n",
+    "Pt=(p-d)*t*sigta#\n",
+    "Pp=p*t*sigta#\n",
+    "Pb=2*d*t*sigba#\n",
+    "n=Ps/Pb#\n",
+    "n=n*100#\n",
+    "print \" n is %0.0f      \"%(n)#"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## exa 11-9 - Page 327"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " n is 39      \n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt,pi\n",
+    "D=1200#\n",
+    "p=2.5#\n",
+    "sigba=110#\n",
+    "Pa=pi*D**2*p/4#\n",
+    "nt=0.8#\n",
+    "sigta=80#\n",
+    "t=p*D/(2*sigta*nt)#\n",
+    "t=24#\n",
+    "d=6*sqrt(t)#\n",
+    "d=30#\n",
+    "Ta=55#\n",
+    "Ps=pi*(d**2)*Ta/4#\n",
+    "Np=Pa/Ps#\n",
+    "Np=74#\n",
+    "nr=Np/2#\n",
+    "p=pi*(D+t)/nr#\n",
+    "pb=2*d#\n",
+    "m=1.5*d#\n",
+    "Pt=(p-d)*t*sigta#\n",
+    "Ps=2*Ps#\n",
+    "Pb=2*d*t*sigba#\n",
+    "Pp=p*t*sigta#\n",
+    "n=Ps/Pp#\n",
+    "n=n*100#\n",
+    "print \" n is %0.0f      \"%(n)#"
+   ]
+  }
+ ],
+ "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
+}