GPS-X Technical Reference

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GPS-X Objects 28 TYPES OF OBJECTS Common Properties Before describing each object that appears on the GPS-X Process Table, an outline of the properties common to some objects is presented. The objects in the Process Table can be described as either having volume or not. There are some deviations from this general rule, but they can be ignored for now. For example, the control splitter object does not have any volume (called “zero volume”), while the equalization basin does have volume. The zero volume objects do not have any dilution or residence time while the objects with volume do. Objects with volume have one or more influent connection points and one or more effluent connection points. For example, the settler objects have one influent connection point plus three effluent connection points, while the PLUG FLOW-TANK(2) object has three influent connection points and two effluent connection points. The effluent connection point(s) will have an overflow connection plus one or more pump connections. The overflow is located at the upper right hand corner of the object (as oriented in the Process Table), while any additional output connections are located on the right hand side or bottom of the object. The additional output connections (either called pump or underflow) simulate a constant or variable flow pump so that a flow rate can be specified (up to the maximum pump capacity). The volume of fluid in the tank depends on the net influent - effluent flow. If this is a negative value, then the volume of the tank will decrease until it reaches zero. At this point the effluent will equal the influent, regardless of the pump flow set. If the net influent-effluent flow is positive, the tank volume will increase until the maximum (specified by the user). At this point, the tank begins to overflow, so that the effluent flow (sum of the overflow and pump flows) will be equal to the influent flow. The effluent flow over and above the effluent pumped flow rates will leave through the overflow connection point. If the net influent-effluent flow is zero, then the volume will not change. GPS-X Technical Reference
29 GPS- X Objects The mass balance for variable volume tanks is shown in Equations 2.1-2.4: Equation 2.1 Equation 2.2 Equation 2.3 Equation 2.4 where: Q in Q out C in = influent flow rate (m 3 /d) = effluent flow rate (m 3 /d) = influent concentration (mg/L) = effluent concentration (mg/L) = rate of reaction (mg/L/d) C r V = liquid volume (m 3 ) t = time (d) Another feature of the objects with volume is their initial volume. When a simulation begins, the user can specify what volume the tank initially has through the use of a logical variable called start with full tank, located under Initial Conditions > Initial volume. If this logical switch is true, then the tank will be full at the beginning of the simulation. GPS-X Technical Reference
Page 1 and 2: GPS-X Technical Reference GPS-X Ver
Page 3 and 4: Table of Contents iii Table of Cont
Page 5 and 6: v Table of Contents Sedimentation M
Page 7 and 8: vii Table of Contents Real Time Clo
Page 9 and 10: ix Table of Contents Figure 6-6 - P
Page 11 and 12: xi Table of Contents Figure 10-8 -
Page 13 and 14: xiii Table of Contents Figure 15-6
Page 15 and 16: xv Table of Contents Table 6-2 - Mo
Page 17 and 18: 17 Modelling Fundamentals Experimen
Page 19 and 20: 19 Modelling Fundamentals The proce
Page 21 and 22: 21 Modelling Fundamentals Overview
Page 23 and 24: 23 Modelling Fundamentals Primary a
Page 25 and 26: 25 Modelling Fundamentals Vesilin
Page 27: 27 GPS-X Objects CHAPTER 2 GPS-X Ob
Page 31 and 32: 31 GPS- X Objects Combining Equatio
Page 33 and 34: 33 GPS-X State Variable Libraries S
Page 35 and 36: 35 GPS-X State Variable Libraries C
Page 37 and 38: 37 GPS-X State Variable Libraries C
Page 39 and 40: 39 GPS-X Composite Variable Librari
Page 41 and 42: 41 GPS-X Composite Variable Calcula
Page 55 and 56: 55 Composite Variable Calculations
Page 61 and 62: 61 Influent Models CHAPTER 5 Influe
Page 63 and 64: 63 Influent Models Figure 5-3 - Inf
Page 65 and 66: 65 Influent Models The three influe
Page 67 and 68: 67 Influent Models Total runoff (Q
Page 69 and 70: 69 Influent Models These inputs are
Page 71 and 72: 71 Influent Models CODFractions COD
Page 73 and 74: 73 Influent Models TSSCOD Figure 5-
Page 75 and 76: 75 Influent Models Figure 5-13 - CN
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79 Influent Models Figure 5-17 - CN
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81 Influent Models Figure 5-18 - CN
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83 Influent Models INFLUENT OBJECTS
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85 Influent Models Figure 5-22 - In
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87 Influent Models Chemical Dosage
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89 Influent Models Figure 5-29 - Ac
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91 Influent Models Figure 5-33 - Se
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93 Influent Models Figure 5-36 - Se
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95 Suspended Growth Models where: V
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97 Suspended Growth Models The baro
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99 Suspended Growth Models Oxygen M
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101 Suspended Growth Models In the
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103 Suspended Growth Models The SOT
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105 Suspended Growth Models Standar
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107 Suspended Growth Models The reg
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109 Suspended Growth Models SUMMARY
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111 Suspended Growth Models Figure
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113 Suspended Growth Models General
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115 Suspended Growth Models Number
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117 Suspended Growth Models Elevati
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121 Suspended Growth Models AERATIO
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123 Suspended Growth Models The ent
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125 Suspended Growth Models The org
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127 Suspended Growth Models Process
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129 Suspended Growth Models It i
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131 Suspended Growth Models Nitroge
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133 Suspended Growth Models Include
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135 Suspended Growth Models
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137 Suspended Growth Models Althoug
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139 Suspended Growth Models Particu
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141 Suspended Growth Models 9. Grow
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143 Suspended Growth Models 21. Sto
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145 Suspended Growth Models 33. Gro
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147 Suspended Growth Models To mode
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149 Suspended Growth Models Algebra
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151 Suspended Growth Models The sto
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153 Suspended Growth Models Decay o
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155 Suspended Growth Models SUGGEST
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157 Suspended Growth Models Special
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159 Suspended Growth Models Table 6
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161 Suspended Growth Models The GPS
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163 Suspended Growth Models where:
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165 Suspended Growth Models The max
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167 Suspended Growth Models If yo
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169 Suspended Growth Models ANAEROB
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171 Suspended Growth Models Simple
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173 Suspended Growth Models With th
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175 Suspended Growth Models Manual
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177 Suspended Growth Models Equatio
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179 Suspended Growth Models The met
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181 Suspended Growth Models Pond Mo
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183 Suspended Growth Models Special
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185 Suspended Growth Models Se
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187 Suspended Growth Models aerated
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193 Suspended Growth Models Calcula
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195 Suspended Growth Models The vap
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197 Suspended Growth Models Oxygen
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199 Suspended Growth Models Estimat
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203 Suspended Growth Models Enterin
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209 Suspended Growth Models MODELLI
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211 Suspended Growth Models TEMPERA
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213 Suspended Growth Models Table 6
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215 Suspended Growth Models The PAC
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217 Suspended Growth Models CHAPTER
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219 Attached-Growth Models Each lay
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221 Attached-Growth Models Equation
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223 Attached-Growth Models The mode
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225 Attached-Growth Models The phys
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227 Attached-Growth Models Liquid F
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229 Attached-Growth Models This con
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231 Attached-Growth Models The next
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233 Attached-Growth Models The SBC
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235 Attached-Growth Models Based on
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237 Attached-Growth Models Operatio
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239 Attached-Growth Models Hydrauli
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241 Attached-Growth Models ADVANCED
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243 Attached-Growth Models Filtrati
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245 Attached-Growth Models Operatio
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247 Attached-Growth Models This for
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249 Attached-Growth Models HYBRID S
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251 Attached-Growth Models Figure 7
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253 Sedimentation and Flotation Mod
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267 Sand Filtration Models Floatati
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269 Sand Filtration Models The back
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271 Sand Filtration Models The mass
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273 Sand Filtration Models Figure 9
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275 Digestion Models Figure 10-1 -
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277 Digestion Models Seven yield co
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279 Digestion Models Based on the a
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281 Digestion Models Combining the
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283 Digestion Models The Operationa
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285 Digestion Models Kinetic and St
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287 Digestion Models The rest of th
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291 Digestion Models ADM1 State Var
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293 Digestion Models AEROBIC DIGEST
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297 Other Models CHAPTER 11 Other M
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299 Others Models High volume for p
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301 Others Models The sludge pretre
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303 Others Models With a large over
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305 Others Models Dosage Controller
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307 Others Models The set of above
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309 Others Models There are three p
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311 Others Models DISINFECTION UNIT
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313 Others Models DEWATERING Four m
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315 Others Models The optimal polym
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317 Others Models DISC AND BELT MIC
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319 Others Models Figure 11-12 - Pl
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321 Others Models Physical Setup Fo
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323 Others Models Exponential const
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325 Others Models BLACK BOX The Bla
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327 Tools Object Figure 11-19 - Spe
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329 Tools Object Figure 11-21 - Inp
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331 Tools Object Typical Model Outp
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333 Tools Object The variable speed
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335 Tools Object SLUDGE EFFLUENT BU
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337 Tools Object PH TOOL Take a sam
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339 Tools Object These concentratio
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341 Tools Object LOW-PASS FILTERING
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343 Tools Object Control Variable P
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345 Tools Object The individual mod
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347 Tools Object PID in Position Fo
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349 Tools Object The following para
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351 Tools Object The controller tun
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353 Tools Object When both the proc
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355 Tools Object TIMER CONTROL The
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357 Tools Object Controller - The c
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359 Tools Object (qcon is the crypt
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361 Operating Cost Models CHAPTER 1
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363 Operating Cost Models The energ
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365 Operating Cost Models OPERATING
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367 Operating Cost Models OPERATING
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369 Operating Cost Models CALIBRATI
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371 Operating Cost Models Category
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373 Optimizer If after the reflecti
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375 Optimizer In the objective func
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377 Optimizer Figure 14-2 - Optimiz
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379 Optimizer Figure 14-3 - Example
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381 Optimizer SUMMARY OF THE OPTIMI
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383 Optimizer Use specified standar
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385 Optimizer Level of significance
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387 Optimizer APPENDIX A: MAXIMUM L
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389 Optimizer In GPS-X the log-like
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391 Optimizer Note that the user ca
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393 Optimizer Gradient of the Objec
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395 Optimizer Hessian of the Object
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397 Optimizer For the maximum likel
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399 Optimizer Percentage Variation
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401 Optimizer GPS-X reports the F-v
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403 Optimizer The sum of squares ra
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405 Optimizer To check for violatio
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407 Optimizer If the sample autocor
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409 Optimizer APPENDIX C: NOMENCLAT
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411 Optimizer APPENDIX D: REFERENCE
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413 Miscellaneous CHAPTER 15 Miscel
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415 Miscellaneous As compared to th
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417 Miscellaneous A typical GPS-X o
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419 Miscellaneous RESIDUAL PLOTS Fo
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421 Miscellaneous Figure 15-6 - Res
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423 Miscellaneous REAL TIME CLOCK T
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425 Miscellaneous Figure 15-9 - Ste
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427 Miscellaneous Figure 15-11 - In
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429 Miscellaneous The smoothing fun
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431 Miscellaneous The Gear's Stiff
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Appendix A - Petersen Matrices A-1
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ASM2d in CNPLIB Appendix A - Peters
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15 Lysis of XBP 16 Lysis of XPP 17
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NewGeneral in CNPLIB Appendix A - P
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NewGeneral in CNPLIB Appendix A - P
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Component i Process Rates Appendix
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2 Appendix A - Prefermenter Peterse
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D-2 Appendix D - References Brockwe
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D-4 Appendix D - References Hur, D.
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D-6 Appendix D - References Reilly,
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D-8 Appendix D - References Wuhrman
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