mathematics handbook

... Yocto Y Z E P T G M k h da d c m m n p f a z y 10 10 21 1 018 10 15 10 12 10 9 10 6 10 3 10 2 10 1 10 1 10–2 10 –3 10 –6 10 –9 10 12 10 15 10 18 10 – 21 10–24 Table 1. 2 Alphabetical Listing of Conversion Factors ... 62.43 × 10 –9 35. 314 × 10 –3 1. 0 × 10 –6 35. 314 × 10 –6 35. 314 2.2046 × 10 –6 16 . 018 × 10 3 0.35 314 16 . 018 × 10 6 16 . 018 353 .14 × 10...

Ngày tải lên: 11/08/2014, 17:20

... 100: Percent (%) = Part Whole (2. 1) For example, 22 percent (or 22 %) means 22 out of 100, or 22 /100 Dividing 22 by 100 results in the decimal 0 .22 : 22 % = 22 = 0 .22 100 • When using percentage ... 3 .2 mil gal 24 h × 8h day = 3 .2 × 24 MGD = 9.6 MGD © 20 05 by CRC Press LLC L1681_book.fm Page 52 Tuesday, October 5, 20 04 10:51 AM 52 ENVIRONMENTAL ENGINEER’S MATHEMATI...

Ngày tải lên: 11/08/2014, 17:20

... 10–6 2 .3 × 10–2 3. 7 × 10 3 4.8 × 10 3 0.18 × 10 3 10 3 3.4 × 10 3 6.7 × 10 3 4.9 × 10–1 6 .3 × 10–6 8.7 × 10 3 4.8 × 10–7 0.66 × 10 3 2.95 3. 4 × 10–6 1. 23 8 .3 × 10 3 3.5 × 10–5 6.6 × 10 3 1.8 × ... Cyclohexane 1,1-Dichloroethane 1,2-Dichloroethane cis-1,2-Dichloroethene trans-1,2-Dichlorethene Ethane Ethanol Ethylbenzene Lindane Methane Methylene chloride n-Octane Pentach...

Ngày tải lên: 11/08/2014, 17:20

... Press LLC L1681_book.fm Page 90 Tuesday, October 5, 20 04 10:51 AM 90 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Figure 4. 1a Input Figure 4. 1b Output traveling salesman problem) Finally, some ... 5, 20 04 10:51 AM 92 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK • LONGZ — a steady-state Gaussian plume formulation for urban and rural areas in flat or complex terrain to...

Ngày tải lên: 11/08/2014, 17:20

... strength, are classified in Table 5. 5 © 20 05 by CRC Press LLC L1681_book.fm Page 108 Tuesday, October 5, 2004 10 :51 AM 108 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Table 5. 5 Relative Strengths of ... lb/gal × 1.0 = 6 .58 10 = 6 .58 mg/L © 20 05 by CRC Press LLC L1681_book.fm Page 126 Tuesday, October 5, 2004 10 :51 AM 126 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDB...

Ngày tải lên: 11/08/2014, 17:20

... 3 360 + 264 0 + 2755 + 2 860 + 265 0 + 2340 = 2705 mg/L 7-Day Moving Ave for Day = 3 360 + 264 0 + 2755 + 2 860 + 265 0 + 2340 + 2350 = 2708 mg/L 7-Day Moving Ave for Day = 264 0 + 2755 + 2 860 + 265 0 + ... deviation: © 2005 by CRC Press LLC L 168 1_book.fm Page 1 46 Tuesday, October 5, 2004 10:51 AM 1 46 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK 68 . 26% 95. 46% 99.74% −3s Fi...

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... divisions ↓ — — — — — — — – 273 .15 + 373 .15 — — — — — — — — 273 .15 — — — — — +212 — — — ↑ 180 equal divisions ↓ — — +32 — — — — — –459. 67 + 671 . 67 — — — — — — — — +491. 67 — — — — — Temperature scale ... Sometimes converting milligrams per cubic meter (mg/m3) — a weight-per-volume-ratio — into a volume-per-unit weight ratio is necessary If g-mol of an ideal gas at 25°C occupies 24.45...

Ngày tải lên: 11/08/2014, 17:20

... Institute (APTI), EPA45 0-2 -8 1-0 05 USEPA -8 1 /05 (1 981 ) Control of gaseous emissions, Course 415, USEPA Air Pollution Training Institute (APTI), EPA45 0-2 -8 1-0 06 USEPA -8 4 /03 (1 984 ) Wet scrubber plan ... LLC L1 681 _book.fm Page 188 Tuesday, October 5, 2004 10:51 AM 188 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK 120 100 80 60 40 20 50 100 150 200 250 300 350...

Ngày tải lên: 11/08/2014, 17:20

... CONTROL 235 Table 9. 7 Collection Efficiency for Each Particle Size Weight fraction wi Average particle size dp, µm ␩i 0.2 0.2 0.2 0.2 0.2 3.5 13 19 45 0 .93 25 0 .99 79 0 .99 99 0 .99 99 0 .99 99 η = – exp(–kd ... the overall collection efficiency η = Σw i ηi = (0.2)(0 .93 25) + (0.2)(0 .99 79) + (0.2)(0 .99 99) + (0.2)(0 .99 99) + (0.2)(0 .99 99) = 0 .98 61 = 98 .61% where η = overall...

Ngày tải lên: 11/08/2014, 17:20

... by CRC Press LLC 10,220 2274 4.49 L1681_book.fm Page 312 Tuesday, October 5, 2004 10:51 AM 312 12.4 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK STILL WATER SURFACE EVAPORATION In lake and reservoir ... 2274 acre-ft Annual runoff = 38.8 in./yr × 10,220 acres = 38.8 in./yr × feet per 12 in × 10,220 acres = 33,045 acre-ft/yr RT = Storage capacity Annual runoff = 2274 acre-ft 33,045...

Ngày tải lên: 11/08/2014, 17:20

... October 5, 2004 10:51 AM 316 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Ground surface Rain Infiltration Percolation Water table Water table well Unconfined aquifer Figure 13. 1 Unconfined aquifer ... LLC L1681_book.fm Page 318 Tuesday, October 5, 2004 10:51 AM 318 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK ϕ= V void Vtotal (13. 1) Two basic types of porosity are common:...

Ngày tải lên: 11/08/2014, 17:20

... lb/acre-ft): Copper Sulfate, lb = (0.9 lb Copper Sulfate) (acre-ft) acre-ft (15. 18) Example 15. 20 Problem: A pond has a volume of 35 acre-ft If the desired copper sulfate dose is 0.9 lb/acre-ft, ... 360 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Volume, ft = (length, ft) (width, ft) (depth, ft) (15. 22) Volume, gal = (length, ft) (width, ft) (depth, ft) (7.48 gal/ft ) (15. 23) E...

Ngày tải lên: 11/08/2014, 17:20

... during the Seven Days (16. 30) L1681_book.fm Page 458 Tuesday, October 5, 2004 10:51 AM 458 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Example 16. 39 Problem: Calculate the 7-day moving average ... gpd/ft © 2005 by CRC Press LLC L1681_book.fm Page 448 Tuesday, October 5, 2004 10:51 AM 448 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Example 16. 24 Problem: A high-rate tr...

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... right-of-way), streets and roads: Paved; curbs and storm sewers (excluding right-of-way Paved; open ditches (including right-of-way) Gravel (including right-of-way) Dirt (including right-of-way) ... 5, 2004 10:51 AM 580 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Table 17. 7 Hydrologic Summary, SCS Methods Condition DA RCN PRE-DEV POST-DEV 25 acre 25 acre Q2 tc Q10 TR-55 graphical...

Ngày tải lên: 11/08/2014, 17:20