The Atlanta Child Murders and Forensic Science

The Atlanta Child Murders and Forensic Science Please research the case of The Atlanta Child Murders that occurred during a two year period between 1979 and 1981.

The assignment requires discussion of how criminalistics or forensic science was used to solve the crime and prosecute the accused. In profiling this criminal investigations the major focus of the research and paper must be on the forensic science or sciences used during the investigation and prosecution to convict or acquit the defendant(s). Briefly summarize the investigation or prosecution as background information, however the expectation is a detailed discussion of one or more forensic sciences.

Technical and Scientific Fields Ethics in the News

Technical and Scientific Fields Ethics in the News Research two current ethics cases related to technical/scientific fields in recent news; Write a short synopsis of the key points of the case and where it currently stands (1-2 pages for each case) and submit on Blackboard.

Include answers to the following:
Who is involved (groups/individuals/companies/consumers)?
What actions were considered unethical?
Why are these actions considered unethical?
Who committed/participated in the unethical actions?
What were the results of the unethical actions?
What are the groups/individuals/companies involved doing to correct and/or compensate for the results?
Should the groups/individuals/companies involved being doing more/something different?

Preparation of Synthetic Polymers

Preparation of Synthetic Polymers Polyester, nylon, polyurethane and crosslink polymer, polyvinyl acetate (pva))

You will be writing paragraphs for a lab report. Only 5 parts of the lab report need to be done:
Summary of principle
Observation
Report and discussion
Qualitative data (needs to be in paragraph form)
Conclusion
(All sections need to be a complete paragraph.)
Examples, experiment lab Manuel and recorded data/notes will be uploaded from the experiment. A prevalent but erroneous notion is that useful polymer, such as those given in Table 29-1, can be, and are, made by slap-dash procedures applied to impure starting materials. This is far from the truth; actually, the monomers used in most large-scale polymerizations are among the purest known organic substances.

Self Driving Cars Database and Article

Self Driving Cars Database and Article Choose a database and article to read using the section on the first page titled: To find Journals articles
Read and write a recommendation for or against the article.

Conclude the assignment with a work cited citation for the article. The assignment should be at least 100 words. When Will Mouat, 41, heard there might be a career opportunity in self-driving cars, he jumped. Even though he did not have an engineering background – a lawyer, Mouat had previously worked on the legal teams at PicsArt, a software company, and Shazam, an app that recognizes music – he was enthralled by the potential of the field.

Origins and Consequences of the Scientific Revolution

Origins and Consequences of the Scientific Revolution What were the origins and consequences of the Scientific Revolution? Why is this still an ongoing revolution?

How did the Enlightenment try to institutionalize the Scientific Method with society? Why was it more successful in Britain than France?
Why did the French Revolution become a truly global events? Why and how did it create the modern political spectrum?
Yet, by 1815 why had France essentially “lost” its struggle with Britain for global hegemony? The American statesman Adlai Stevenson once said, America “can chart our future clearly and wisely only when we know the path which has led to the present.” ¹This is clearly true in the field of science and research.

Physical Science in Applied Horizontal Force

Physical Science in Applied Horizontal Force A worker pushes horizontally on a large crate with a force of 170 N, and the crate is moved 4.4 m. How much work was done?

While rearranging a dorm room, a student does 374 J of work in moving a desk 1.5 m. What was the magnitude of the applied horizontal force?

Physical Science in Applied Horizontal Force and the Kinetic Energy

What is the kinetic energy of a 15 kg dog that is running at a speed of 7.5 m/s (about 17 mi/h)?
How much work is required to lift a 2.90 kg object from the bottom of a well 8.7 m deep?
An object is dropped from a height of 15 m. At what height will its kinetic energy and its potential energy be equal?
A sled and rider with a combined weight of 64 kg are at rest on the top of a hill 21 m high.
(a) What is their total energy at the top of the hill?
J
(b) Assuming there is no friction, what would the total energy be on sliding halfway down the hill?
J
A man pushes a lawn mower on a level lawn with a force of 213 N. If 48% of this force is directed downward, and 51 W of power is expended in pushing the mower 4.6 m, how much time is spent in pushing the mower this distance?
A student who weighs 548 N climbs a stairway (vertical height of 2.6 m) in 30 s.
(a) How much work is done?
J
(b) What is the power output of the student?
W
A microwave oven has a power requirement of 1,253 W. A frozen dinner requires 7.0 min to heat on full power.
(a) How much electrical energy (in kWh) is used?
kWh
(b) If the cost of electricity is 10¢ per kWh, how much does it cost to heat the dinner? (Do not round your final answer. Fractional cent values are acceptable.)
¢
Work is done on an object when it is ___.
moved stationary     acted on by a balanced force none of the preceding
What is the SI unit of energy?
watt ft·lb     joule newton
Which of the following objects has the greatest kinetic energy?
an object with a mass of 4m and a velocity of v an object with a mass of 3m and a velocity of 2v     an object with a mass of 2m and a velocity of 3v an object with a mass of m and a velocity of 4v

Physical Science in Applied Horizontal Force and Gravitational Potential Energy

The reference point for gravitational potential energy may be which of the following?
zero negative     positive all of the preceding
When the height of an object is changed, the gravitational potential energy
increases decreases     depends on the reference point remains constant
Mechanical energy is ___.
the same as total energy in all cases the sum of kinetic and potential energies     always conserved all of the preceding
Power is expressed by which of the following units?
W·s N·m     W/m J/s
What is required to do work?
Do all forces do work? Explain.
A weight lifter holds 900 N (about 200 lb) over his head. Is he doing work on the weights? Did he do any work on the weights? Explain.
If the speed of a moving object is tripled, how many times more work is required to bring it to rest?
Three times more work is required. There is no change in the work required to bring it to rest.     Eighty-one times more work is required. Nine times more work is required. Twenty-seven times more work is required.

Incineration plant from Household Waste

Incineration plant from Household Waste Your team works for a company that provides electricity to the grid through the incineration of household waste.

Establish the likely aspects and impacts of the plant and carry out an analysis of these considering the likely risks to the environment. In the light of the information critically appraise the overall environmental position of such processing of waste.
The company is investigating the prospect of widening the scope of the types of waste that can be processed at the plant and is looking at new fluidised bed technology. A local University has been studying the impact of such technology on emissions of N2O and NOx. Their findings are shown after carrying out a study at a partner incineration plant in Austria.
Examining the figures provided for the trials, indicate what the ideal conditions might be for minimum N2O production in terms of operating temperature and free O2 levels. The Austrian plant, for cost reasons, runs at an operating temperature of 850 oC. The university has calculated that predicted N2O levels will be that due to temperature plus that due to the level of free O2 present during combustion. In other words:-
Total N2O = N2O due to Temperature + N2O due to free O2

Incineration Plant from Household Waste Background Information

On average, the company produces 550 to 750 kilowatt-hours of electricity per ton of waste, by the incineration of waste from the locality. This waste is termed municipal solid waste or MSW.
Combustion of MSW is the complete oxidation of the combustible materials contained in the
solid waste fuel, and the process is highly exothermic. During combustion of solid waste,
several complex processes happen simultaneously. The chamber containing the waste is heated to evaporate moisture and volatise the components of the waste mixture. Combustion then begins once the gases given off by the waste are ignited in the presence of air. This is highly exothermic. The process leads to the conversion of waste fuel into flue gas, ash and heat. The heat released is used to produce a high-pressure superheated steam from water, which is sent to the steam turbine that is coupled with a generator to produce electricity.
Leftover ash, now a cement-like product, is then taken off to line landfill.

Incineration plant from Household Waste Fluidised bed technology

New incineration plants use circulating fluidised bed (CFB) technology to recover energy from its waste. CFB technology is proven to be better suited for high moisture content waste such as sludges, sewerage waste, agricultural waste etc. The waste has to be pre-dried.
A fluidized bed is a bed of solid particles, through which gas is flowing in order to liquidize it. The principle behind the operation of the beds is that the particles in a vessel offer resistance to the flow of gas inserted in the vessel basin. Waste is mixed with hot circulating sand at lower temperatures compared with conventional incineration. The lower temperatures used, together with the more uniform distribution of temperatures – which eliminates hot spots and high oxygen zones, results in reduced thermal NOx production. The low combustion temperatures promote the formation of the greenhouse gas Nitrous Oxide (N2O). It is also possible to reduce the production of Nitrous Oxide. Emissions decrease with increasing bed temperature, and increase to a certain degree with increasing oxygen concentration.
University Studies
Studies on the fluidised bed plant in Austria gave the following results with respect to combustion temperature
Trial Temp oC Emissions
mg/Nm3 dry gas
1 800 250
2 810 212
3 820 158
4 830 119
5 840 84
6 850 25
Further trial at a fixed temperature measured the levels of free oxygen when the ratio of air/fuel was varied.
Oxygen excess
vol% N2O
mg/Nm3 dry gas
3.5 170
3.75 194
4 226
4.25 241
4.5 257
4.75 291
5 346
5.25 389
5.5 497
5.75 525
6 544
6.25 565
Performance over the past year, under normal production conditions, is shown in the following table.
Month Av Free O2 N2O
mg/Nm3 dry gas
Aug-17 2.5 45
Sep-17 2.81 52
Oct-17 2.52 20
Nov-17 2.65 24
Dec-17 2.83 320
Jan-18 2.8 280
Feb-18 2.95 330
Mar-18 2.78 370
Apr-18 2.64 25
May-18 2.58 17
Jun-18 2.71 40
Jul-18 2.67 30

Is Water Wet or Not Paper Writing

Is Water Wet or Not Paper Writing Write a paper about whether water is wet or not.

Water is wet for the very same reason – it sticks to itself extremely well! Water sticks to itself so much that it forms a type of skin across the outside of a droplet or the top of a glass of water. Scientists call this stickiness of water cohesion. Where water meets the air water is particularly sticky and has very high surface tension. Other objects become wet when there is more adhesion than cohesion. If cohesion is water sticking to itself, then adhesion is water sticking to other things.

Common Elements Occupational Exposure Limits (OELs)

Perform the following calculation for air concentration. Acetone: 42.0 ppm = ____ mg/m3
Perform the following calculation for air concentration. Sulfuric Acid: 2.5 mg/m3 = ____ ppm
Perform the following calculation for air concentration. Formaldehyde: 4.0 mg/m3 = ____ ppm
Perform the following calculation for air concentration. Benzene: 3.0 ppm = ____ mg/m3
Discuss the similarities and differences that exist between the three basic types of occupational exposure limits (OELs).

Describe how each type of OEL is used to control occupational exposures, and provide at least one specific chemical for which each type of OEL has been established.
Your answer must be a minimum of 200 words in length.
Discuss the common elements used to derive occupational exposure limits (OELs). Provide your opinion as to which of the elements is the most important.
Your answer must be a minimum of 200 words in length
Describe how hazard notations are used to derive OELs, including the additional hazard notations included by the Occupational Safety and Health Administration (OSHA). How would these notations be used in industrial hygiene practice?
Your answer must be a minimum of 200 words in length.
Unit III journal
Imagine that you are an industrial hygienist or a safety officer at an organization. Describe how you would determine which occupational exposure limits (OELs) should be applied at your workplace. Should you use the Occupational Safety and Health Administration (OSHA) permissible exposure limits (PELs), the American Conference of Governmental Industrial Hygienists (ACGIH) threshold limit values (TLVs), or the National Institute for Occupational Safety and Health (NIOSH) recommended exposure limits (RELs)? Explain which one you would choose and why.
Your journal entry must be at least 200 words. No references or citations are necessary.

ADD Versus ADHD Personal Perspective

ADD Versus ADHD Personal Perspective Summarize the article in 2 pages of your own words, citing, in APA style, both internally and at the end of your paper, any paraphrasing or quotes (use very few of these). In your concluding paragraph describe what you learned from the article (this is the only part of the paper in which you should offer a personal perspective and are permitted to use first person "I" language).

ADD Versus ADHD Personal Perspective Conclusion

In your concluding paragraph describe what you learned from the article (this is the only part of the paper in which you should offer a personal perspective and are permitted to use first person "I" language). In your concluding paragraph describe what you learned from the article (this is the only part of the paper in which you should offer a personal perspective and are permitted to use first person "I" language). In your concluding paragraph describe what you learned from the article (this is the only part of the paper in which you should offer a personal perspective and are permitted to use first person "I" language). ADD Versus ADHD Personal Perspective In your concluding paragraph describe what you learned from the article (this is the only part of the paper in which you should offer a personal perspective and are permitted to use first person "I" language).