C:\UMBC\331\java> java.ext.dirs=C:\JDK1.2\JRE\lib\ext java.io.tmpdir=C:\WINDOWS\TEMP\ os.name=Windows 95 java.vendor=Sun Microsystems Inc. java.awt.printerjob=sun.awt.windows.WPrinterJob java.library.path=C:\JDK1.2\BIN;.;C:\WINDOWS\SYSTEM;C:\... java.vm.specification.vendor=Sun Microsystems Inc. sun.io.unicode.encoding=UnicodeLittle file.encoding=Cp1252 java.specification.vendor=Sun Microsystems Inc. user.language=en user.name=nicholas java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport... java.vm.name=Classic VM java.class.version=46.0 java.vm.specification.name=Java Virtual Machine Specification sun.boot.library.path=C:\JDK1.2\JRE\bin os.version=4.10 java.vm.version=1.2 java.vm.info=build JDK-1.2-V, native threads, symcjit java.compiler=symcjit path.separator=; file.separator=\ user.dir=C:\UMBC\331\java sun.boot.class.path=C:\JDK1.2\JRE\lib\rt.jar;C:\JDK1.2\JR... user.name=nicholas user.home=C:\WINDOWS C:\UMBC\331\java>java envSnoop -- listing properties -java.specification.name=Java Platform API Specification awt.toolkit=sun.awt.windows.WToolkit java.version=1.2 java.awt.graphicsenv=sun.awt.Win32GraphicsEnvironment user.timezone=America/New_York java.specification.version=1.2 java.vm.vendor=Sun Microsystems Inc. user.home=C:\WINDOWS java.vm.specification.version=1.0 os.arch=x86 java.awt.fonts= java.vendor.url=http://java.sun.com/ user.region=US file.encoding.pkg=sun.io java.home=C:\JDK1.2\JRE java.class.path=C:\Program Files\PhotoDeluxe 2.0\Adob... line.separator=
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Maji Safi Jason Arble, Peter Balkam, Kaitlin Menzie, Minh Tran Faculty Advisor: Prof. Paul Siqueira Abstract System Overview Maji Safi is a remotely controlled device allowing users with a SMS-enabled cell phone to access measurements of physical water parameters where the device is deployed. Users text the device to issue commands to detect the presence of water, return turbidity, temperature, and pH measurements. The device then texts a web server (running Twilio’s web API) to report measurements. The server interprets the measurements and reports back to users via SMS. Our device targets countries experiencing economic water scarcity, where lack of information regarding the water quality of unimproved water resources leads to a poor water-delivery infrastructure. Admins ● Water Detector (yellow) ● Temperature Sensor (violet) ● Turbidity Sensor (green) ● pH Sensor (red) Data can be used to supplement chemical testing, allowing officials to monitor sanitation and correlate water conditions over time with growth of bacteria. People Scientists Device Control Request Block Diagram Application Control Signals Sensor Readings Sensor Readings Sensing The diagram (above left) are example use cases. We intend to have it be used as a scientific instrument, tool in the design and regulation of water distribution infrastructure, and a means by which locals learn about the water around them. Above right illustrates possible deployment sites: refined wells, unprotected wells, and small bodies of exposed surface water. Device Specifications Parameters Goal Actual/Dev. Device Volume 4400 ㎠ 4000 ㎠ Housing Water-Resistant, Buoyant Water-Resistant, Buoyant Server-User Response Time < 5 minutes < 1 minute Phone-User Response Time < 1 minute < 30 seconds Turbidity Sensor Accuracy ± 0.01-5 NTUs. ± 100 NTU pH Sensor Accuracy ± 0.5 ±1 Temperature Sensor Accuracy ± 3°C ± 3°C Power Consumption ≅ 1.4 W 1.35 W Battery Life 12 hours 18.5 hours Deployment Duration 1-3 Months 1-3 months SMS Text($)/Day $0.01-$0.03 (1 SMS/Day) $1.00-$5.00 (1 SMS/Day) Cost/Device <$100 $227.92 ● Solar panel extends the deployment time, allowing continuous measurements to be taken for weeks or months. ● Sensors are fairly accurate, power efficient, but could be improved upon or specialized for different applications Water Detector The water detector uses simple voltage divider (shown right) whose output voltage is read by the microcontroller. If this voltage is between a threshold between one and two volts and makes a binary decision on whether or not there is water. This threshold was determined from an experiment involving measuring the resistance of different states of water and calculating the output voltage. This data is shown in the table to the right. Substance Impedance (1 cm) Output Voltage Tap water 86 kΩ 1.50 V Sugar Water 99 kΩ 1.65 V Oatmeal Water 75 kΩ 1.36 V Garlic Salt Water Rice Water 65 kΩ 1.23 V 90 kΩ 1.55 V Mud 4 MΩ 4.76 V Acknowledgement Special thanks to our advisor Professor Paul Siqueira, our evaluators Sandip Kundu and Hossein Pishro-Nik, Kris Hollot, Francis Caron and Professor John E.Tobiason. Department of Electrical and Computer Engineering ECE 415/ECE 416 – SENIOR DESIGN PROJECT 2016 College of Engineering - University of Massachusetts Amherst SDP16
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Five Ways to Correct Run-Ons Step 1: Separate the independent clauses with a period, and start the second with a capital letter.  The sun is shining, we are going to the beach.  The sun is shining. We are going to the beach. Step 2: Join the two independent clauses with a comma and a coordinating conjunction.  The sun is shining, we are going to the beach.  The sun is shining, so we are going to the beach. Step 3: Join the two independent clauses with a semicolon, a conjunctive adverb or transitional expression, and a comma.  The sun is shining, we are going to the beach.  The sun is shining; therefore, we are going to the beach. Step 4: Join the two independent clauses with a semicolon.  The sun is shining, we are going to the beach.  The sun is shining; we are going to the beach. Step 5: Join two independent clauses with a subordinating conjunction.  The sun is shining, we are going to the beach.  Because the sun is shining, we are going to the beach.
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REFERENCES Anon, (n.d.). [image] Available at: https://i.ytimg.com/vi/mPApIriH_Q8/maxresdefault.jpg [Accessed 21 Sep. 2018]. Astro.unl.edu. (n.d.). Spectral Classification - Hertzsprung-Russell Diagram - NAAP. [online] Available at: http://astro.unl.edu/naap/hr/hr_background1.html [Accessed 21 Sep. 2018]. Astronomynotes.com. (2010). Properties of Stars. [online] Available at: https://www.astronomynotes.com/starprop/s4.htm [Accessed 18 Sep. 2018]. En.wikipedia.org. (2018). Angular diameter. [online] Available at: https://en.wikipedia.org/wiki/Angular_diameter [Accessed 18 Sep. 2018]. En.wikipedia.org. (2018). Stellar nucleosynthesis. [online] Available at: https://en.wikipedia.org/wiki/Stellar_nucleosynthesis [Accessed 21 Sep. 2018]. Google.com. (2018). how big is the sun - Google Search. [online] Available at: https://www.google.com/search? q=how+big+is+the+sun&rlz=1C1CHBD_enUS815&oq=how+big+is+the+sun&aqs=chrome..69i57j69i60l2j0l3.2104j0j4&sourceid=chrom e&ie=UTF-8 [Accessed 18 Sep. 2018]. Google.com. (2018). how far from earth is the sun - Google Search. [online] Available at: https://www.google.com/search? q=how+far+from+earth+is+the+sun&rlz=1C1CHBD_enUS815&oq=how+far+from+earth+is+the+sun&aqs=chrome..69i57j0l5.4906j0j4& sourceid=chrome&ie=UTF-8 [Accessed 18 Sep. 2018]. McGinnis, E. (2008). Solar Illustration. [image] Available at: http://www.asod.info/wordpress/wp-content/2012/07/solar-flares.jpg [Accessed 18 Sep. 2018]. NASA Captured a Huge Solar Prominence Erupting from the Sun. (2002). [image] Available at: http://photo.minghui.org/images/u_science_related/E_life_4.htm [Accessed 18 Sep. 2018]. Nineplanets.org. (2018). The Sun - How Big is the sun. [online] Available at: https://nineplanets.org/thesun.html [Accessed 17 Sep. 2018].
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A Drinking Water Treatment Process Train Martin T. Auer – MTU Civil & Environmental Engineering Our demonstration of a drinking water treatment process train will be held in the Environmental Process Simulation Center, a teaching facility to supplement the unit operation theory learned in class. This oneof-a-kind facility provides students with hands-on opportunities to explore bench and pilot-scale processes for water treatment, wastewater treatment and air pollution control. Drinking water treatment seeks to make a water supply both potable (safe) and palatable (goodtasting) by removing pathogens (disease-causing organisms) and particles (that might shield pathogens from disinfection. → → Untreated Water Treated Water Coagulation Disinfection Flocculation Sedimentation Filtration This is accomplished through a process train that includes coagulation, flocculation, sedimentation, filtration and disinfection. → → Untreated Water Treated Water Coagulation Disinfection Flocculation Sedimentation Filtration In coagulation, aluminum sulfate (alum) is flash-mixed with the raw water. The aluminum ions form positively-charged hydroxy-metallic complexes that neutralize the negative charges of clay particles allowing them to clump together (coagulate) into larger, more easily sedimented flocs. The complexes also encourage floc formation by bridging. → → Untreated Water Treated Water Coagulation Disinfection Flocculation Sedimentation Filtration In flocculation, the water is gently mixed encouraging particle contact and building larger flocs. The mixing rate is reduced as the water moves through a series of flocculation units to avoid breaking up the large particles.
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Earth-Sun Geometry   The earth’s axis is tilted at an angle of (why we have seasons) Circle (~ N) Boreal (N.H.) Winter Solstice (~21 Dec) • Sun directly overhead Tropic of Capricorn • Sun never rises above Arctic Circle • Sun never sets below Antarctic Circle   Tropic of • • • • Vernal Equinox (~20 March) Sun directly overhead equator The term Austral is used in the S.H. Borealreference Summer to Solstice (~21 Jun) (the is Tropic concurrent SunAustral directlysummer overhead of Cancer with the Boreal winter) Sun never sets above Arctic Circle Sun never rises below Antarctic Circle   Arctic  Cancer (~ N)  Tropic of Capricorn (~ S)  Antarctic Circle (~ S) Autumnal Equinox (~22 September) • Sun directly overhead equator
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GROUND GROUND WATER WATER SAMPLING SAMPLING •• WATER WATER LEVEL LEVEL & & PRESSURE PRESSURE •• WATER WATER SAMPLE SAMPLE FILTRATION FILTRATION •• GROUND GROUND WATER WATER REMEDIATION REMEDIATION •• GEOPHYSICAL GEOPHYSICAL MEASUREMENTS MEASUREMENTS Example • Inconclusive results from sample findings occurred when the pumping test is not of a long enough time period to result in true results of water migration into the well bore from a close proximity salt water body of water. • Saltwater /Brackish water can lead to corrosion of equipment when materials of compatibility for salt water applications are not taken into consideration th 2650 2650 East East 40 40th Avenue Avenue •• Denver, Denver, Colorado Colorado 80205 80205 •• www.geotechenv.com www.geotechenv.com
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