		 


		Digital Computer Laboratory
	     Massachusetts Institute of Technology
		Cambridge 39, Massachusetts




SUBJECT.  BIWEEKLY REPORT{61},_________________________________

To.       Jay W. Forrester

From.     Scientific and Engineering Computation Group



1.  MATHEMATICS, CODING AND APPLICATIONS____________________________________

    1.1  Introduction____________

	During the past two weeks    coded programs were run
on the time allocated to the Scientific and Engineering (S and EC)
Group.  These programs represent part of the work that has been done
on    of the problems that have been accepted by the S and EC Group.

    l.2  Programs and Computer Operation_______________________________

Problem No.___________		  Title_____			 Minutes_______

100	Comprehensive System of Service Routines       

101 N.	Optical Properties of Thin Metal Films         

106 C.	MIT Seismic Project		       

107 C.	Autocorrelation and Fourier Transform	       

108 C.	An Interpretive Program		       

120 B,N.	The Aerothermopressor		       

122 N.	Coulomb Wave Functions		       

123 B,N.	Earth Resistivity Interpretation	       

126 D.	Data Reduction			       

130 B,N.	Six-component Distillation		       

131	Special Problems (Staff Training,etc.)	   )	       

132 D.	N. C. Milling Machine		       

140	Summer Session System		       

141	S and EC Subroutine Study		       

144 N.	Self-consistent Molecular Orbital              

150	Drum Comprehensive System		       

151 B.	NIM				       

155 N.	Synoptic Climatology		       

l56 A.	Reflection in a Semi-Infinite Rect. W.G.       

159 D.	Water Use in a Hydroelectric System	       

162 N.	Nuclear Scattering Phase- Shifts	       

166 C.	Delta-Wing Flutter Model Study	       

167 B,N.	Batch Distillations with Holdup	       

168 D.	Indicial Downwash Behind a 2 D Wing	       

172 B,N.	Overlap Integrals 			       

173 B.	Course 6.537, Spring l954		       

174 N.	Tight Binding Calculations in Crystals	       

177 C.	Low Aspect Ratio Flutter		       

179 C.	Transient Temperature of a Box-Type Beam       

180 B.	Crosscorrelation of Blast Furnace Data	       

183 D.	Blast Response of Aircraft		       

184 B,N.	Scattering of Electrons from Hydrogen	       

186 B,L.	Human Op. Tracking Response Characteristics    

188 C.	Water Production in Oil Reservoirs	       

189 C.	Gustiness in the Free Atmosphere	       

190 D.	Zeeman and Stark Effect in Positronium	       

191 B.	Earthquake Epicenter Location	       

193 L.	E.V.  Problem for Propagation of E.M. Waves    

194 B,N.	Augmented Plane Wave Method (Sodium)	       

195 C.	Intestinal Motility		       

196 	Single Address Computer		       

197	Three Address Computer		       

198	Student Problems for SAC and TAC	       

199 N.	Compressible Flow in a Tube		       

200 L.	A Study of Recurrent Events		       

201 N.	Study of the Ammonia Molecule	       

203 D,N.	Response of a Building Under Dynamic Loading   

204 N.	Exchange Integrals Between Real Slater Orbitals

205 B,N.	Electron Lattice Interaction in Solids	       

207 C.	Check for REAC			       

208 C.	Interceptor Flight Control Problem	       

2l0 A.	Residue-Indices and Primitive Roots	       

211 C.	Servo Response to a Cosine Pulse	       

212 B,N.	Dispersion Curves for Seismic Waves	       

213 D.	Industrial Process Control Studies	       

214 A.	Internal Distribution		       

215 B.	Plant Surveys by Statistical Methods	       

216 C.	Ultrasonic Delay Lines		       

217 N. 	Atomic Wave Function and Energies	       

218 N.	Stage B for Diatomic Molecules	       

219 	Linear Programming			       

220 A.	Prob. Arising from An Algebra	       

221 B.	Course 6.25, 1954     		       

222 C.	Helicopter Rotor Stability		       

223 B,N.	Investigation of Turbulent Flow	       

224 N.	Vertical Velocity Fields		       

225 B,N.	Neutron-Deuteron Scattering		       

226 D.	Circulation of the Atmosphere	       

227 N.	Determination of the NVRITIL Buckling B 2     

228 N.	Evaluation of Difference Diffusion Equation    

229 D.	Rotating Contact Seal		       

230 C.	Dynamic Analysis of Bridges		       

231 B,N.	Reactor Runaway Prevention		       

232 B.	Energy Levels in a Spheroidal Potential        

233 C.	Utility Stock Prices		       

234 N.	Atomic Integrals			       

235 B,N.	Eigenvalues for a Spheroidal Square Well       

236 C.	Transient Response of Aircraft to Heating      

237 C.	Autocorrelation Function of Submitted Data     

238 B,N.	Self-consistent Calculation of Nuclear Density 

239 C.	Guidance and Control		       

240 A.	Electrons and Photons in Cascade               

24l B,N.	Transients in Distillation Columns             

242 N.	Counting Structures of Relations	       

243 D.	Crystal Filters			       

244 C.	Data Reduction for X-1 Fire Control            

245 N.	Theory of Neutron Reactions		       

246 B,N.	Scattering From Oxygen		       

247 C.	Surface Pressure Prediction		       

248 B.	Propane Vibrations			       

249 C.	Flight Interceptor Control		       

250 C.	Translation Program for the NCMM	       

25l B.	Packed Column Dynamics		       

252 N.	Analysis of Two Story Steel Frame Building     

253 N.	APW as Applied to Face- and Body-Centered Iron 

254 D.	Thermal Stresses in a Flat Slab	       

255 C.	Energy Transfer in Biological Substances       

256 C.	WWI -ll03 Translation Program	       

257 C.	Horizontal Stabilizer Analysis	       

285 N.	APW as Applied to Chromium Crystal	       

259 L.	Ionosphere Computation		       

260 N.	Energy Levels of Diatomic Hydrides	       

261 C.	Fourier Synthesis for Crystal Structures       

262 N.	Evaluation of Two-center Molecular Integrals   

263 C.	Aircraft Pullup Flight Path		       

264 C.	Optimization of Alternator Control System      

265 L.	Electron Diffusion in an Electromagnetic Field 

266 A.	Calculations for the MIT Reactor	       

267 B.	NCMM Turbine Blade		                 

258 C.	Dynamic Analysis of an Aircraft Interceptor    

268 B.	Extrapolation Techniques  		       

269 C.	Analysis of Shear Wall Testing Machine	       

270 B.	Critical Mass Calculations		       

271 B.	Beam Splitting Technique		       

272 L.	General Raydist Solution		       

273 N.	Cosmic Ray Air Shower		       

274 N.	Multiple Scattering		       

275 B.	Buckling of Shallow Elastic Shells	       

276 B,N	Martensitic Transformation in Stainless Steel  

277 C.	Horizontal Stabilizer Study		       

278 N.	Energy Levels of Diatomic Hydrides LiH	       

279 D.	Queuing				       

280 B.	Correlation Function		       

281 D.	Correlations and Transforms		       

282 B.	Helicopter Blade Flapping Instability	       

283 B.	Information Handling in Task Groups	       

284 C.	Gulf Stream Motion Forecasting	       

286 B.	Responses of the Human Pilot		       

287 D.	Probability Pattern		       

288 N	Atomic Wave Functions		       

143 D.	Vibrational Frequency Spectrum of a Cu. Crystal

289 C.	High-speed Laminar Boundary Layer Heat Transfer

290 N.	Polarizability Effects in Atoms and Molecules  

291 B.	Dynamic Buckling			       

292 A.	Course 6.535,1955 Practice		       

293 C.	Rolling Bearings			       

294 C.	Wind Tunnel Data Reduction		       

295 C.	Electron Collision Frequency		       

296 C.	System Analysis			       

297 B.	Diffusion Boundary Layer		       

298 C.	Dipole Moments			       

299 C.	Heat Transfer in Turbulent Flow	       

300 L.	Tropospheric Propagation		       

301 C.	Fourier P Phase (etc.)		       

302 B.	Partially Continuous Wooden Beams	       

303 B.	Prediction of Chromatographic Separations      

304 A.	Relativistic Atomic Wave Functions	       

305 B.	Course 6.25, Summer 1955		       

306 D.	Spectral Analysis of Atmospheric  Data	       

307 C.	Supersonic Nozzle Design		       

308 C.	Frequency Analysis of Aperiodic Functions      

309 B,N.	Pure and Impure Potassium Chloride Crystal     

310 C.	Rocket Trajectory Calculations	       

311 N.	Solitary Wave Generating Cam		       m

312 L.	Error Analysis			       

313 D.	Routines for Course 6.601		       

314 C.	Factoring High Order Polynomials	       

315 C.	Torpedo Hit Distribution		       

316 L.	Radar Conversions			       

317	Stability Derivatives from Flight Test Data    

318 C.	3D Aero-dynamic-Lead-Pursuit Study	       

319 B,N.	Scattering from a Spheroidal Potential	       

320 B,N.	Moment of Inertia of a Spheroidal Nucleus      

321 B,N.	E.V. and E.F. for a Spheroidal Square Well     

322	The Maximum Bubble Size		       

323 N.	Analysis of Cloud Chamber Photographs	       

324	Transient Response of Aircraft to Heating      

325 B.	Diffusion Equation			       

326 C.	Diffusion Equation		       

327 L.	Prediction Analysis		       

328 B.	Buried Elastic Wave Source		       

329 A.	First Approximation Solution on Ore Body       

330 C.	

331 D.	Matrix Iteration			       

332 C.	Game Theory Optimization		       

333 A.	Combustion Problem			       

334 C.	Parametric Study of Coupling and Damping       

335 D.	Course 6.25 Fall 1955		       

336 C.	Pattern Identification		       

337 AN.	Nonlinear 2nd Order Diff. Eqs.	       
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