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MATHEMATICS Lecture Notes - Bolometer, Analog Television, Earth Analog

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roneilalgara
14 May 2022
School
Technological University of the Philippines
Department
Engineering
Course
MATHEMATICS
Professor

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Decay positron decay, proton to neutron gamma radiation, lowering binding energy. Law: a robot must protect its own existence as long as such protection does not conflict with the first or second. Modern industrial robots multi-functional servo-controlled programmable temperature resistance coefficient gold. 100 hours frequency measurements application mechanical - rotation electrical-output. Sale of unregistered rfid proximity readers illegal acquisition of rfid reader. Selling of rfid proximity readers by non-ntc accredited radio dealers/manufacturers. Non-registration of imported rfid readers within 5 days from release from customs. Imported rfid tags shall covered by permit to import to be issued upon payment of permit fee. Rejector peak factor peak value peak-rms triangular wave sine wave. Inductive capacitive current leads by 90 degrees current lags voltage by less than 90 degrees.

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Overview:
In this assignment, you will review how enzymes work and research some common enzymes and their functions. You will then answer discussion questions about the enzymes you researched.
Background Information:
  •  Activation Energy - how much energy is required to start a chemical reaction
  •  Reactant - substances that interact in a chemical reaction, listed on the left side of a chemical equation
  •  Products - substances that are the result of a chemical reaction, listed on the right side of a chemical equation
Enzymes are a type of protein found in all our cells that act as biological catalysts. A catalyst speeds up a chemical reaction by lowering its necessary activation energy. They do this by binding to the substrate or reactants of a chemical reaction. The substrate binds to what is called the active site on the enzyme. The active site of an enzyme is very specific and only works for a specific substrate. This is known as a lock and key, because only a certain substrate works with each enzyme.
 
Once the substrate attaches to the active site, the enzyme activates and catalyzes the chemical reaction. The energy still needed to perform the reaction comes from the foods we eat. After the reaction occurs, the products are released. The enzyme now has an open active site for other reactants to bind to.
 
Enzymes are affected by things like temperature and $\mathrm{pH}$ that can change their shape and ability to function. This is why our bodies need to stay at a certain temperature, and our stomach and blood must stay within a specific pH range. This allows enzymes in our body to work in their optimum conditions.
 
 
Assignment:
For this assignment, you will be researching some enzymes and answering some discussion questions about how they work.
1. Research the enzyme pepsin. Where is this found? What is its purpose?
2. Research the enzyme helicase. Where is it used? Why is it important?
3. Research the enzyme lactase. What is its function? What reactions does it speed up? What is Lactose intolerance?
4. Research an enzyme used in digesting a certain food. What enzyme is it? What food is it used for? How does it help with digesting this food?
 
Submission:
You will submit the responses to the discussion questions as a list or in an essay format. This can be done on paper or uploaded in a document.
 
Grading Rubric

Saturn V First-Stage Structural Analysis The first stage of the Saturn V (also called the S-IC) provided thrust to lift the second stage, third stage, and payload to an altitude of about 100km within the first 150 seconds of flight, at which point it experienced a maximum acceleration of 38𝑚/𝑠2 . The first stage structure (the shell around the propellant tanks) transmitted the force produced by the engines to the upper stages through its outer skin. This skin was composed of 2219-T87 aluminum, which has a Young's modulus of 73.1GPa, a yield strength of 390MPa, a density of 2840 𝑘𝑔/𝑚3 , and a thermal expansion coefficient of 22 ∗ 10-6𝐾-1 . We will perform an analysis of the S-IC structure and the loads it carried through a series of scenarios. The exception is for Part 5, which must be done by hand as it requires significant drawing and only uses symbolic variables, no numerical calculations. I also recommend setting up the equations for Part 4 by hand and then using the .m file to perform the actual computations. 

 

Part 1: 

 The S-IC stage shell was required to support the load of the second stage, third stage, instrument unit, and Apollo spacecraft modules, both on the pad and during launch. The maximum mass it had to support was when the fully-fueled vehicle was sitting on the pad, and the maximum acceleration it experienced was immediately before stage burnout (when the S-IC was empty but all the other stages were full). Assume the S-IC tank structure is a smooth cylinder with an outer diameter of 10 meters, a thickness of 5.5 mm, and a height of 41 meters when nothing is mounted on top of it. The empty mass of everything above the stage is 9.7 ∗ 104 𝑘𝑔, and the mass of everything above the stage is 2.9 ∗ 106 𝑘𝑔 when fully fueled. 

Find:

• How much the stage shrinks when the empty stages are placed atop the S-IC

• How much the stage shrinks when the vehicle is fully fueled 

• How much the stage shrinks under full acceleration 

• The average axial stress experienced in each of these three cases

• The factor of safety in each of these three cases Ignore the mass of the S-IC structure itself and propellant; all we care about is how the tank has to deal with supporting the masses above it.

 

Part 2: 

 In reality, the stage did not have a uniform cross section; it was composed of steps of decreasing thickness toward the top of the S-IC, to save structural mass. Suppose the tank wall thickness decreased from 6.5 mm at the bottom to 4.3 mm at the top in eight steps of equal height. Each of the eight "rings" would have a constant wall thickness, the same height as the other rings, and the total height of the stage would still be 41 meters. Repeat the first three bullet points from Part 1, to find how much the stage will contract with the stepped cross sections instead of the uniform. Additionally, find the mass savings by constructing the tank in this manner.

 

Part 3: 

If the 41m height measurement given in Part 1 was taken at an ambient temperature of 25C, how much would the entire S-IC shrink due to thermal contraction (with no load atop the stage) at an operating temperature of -100C? You may choose either the uniform or stepped cross-section configuration from Part 1 or Part 2 to solve this problem, but there is one optimal solution within the scope of this project. Explain which option you chose and why. 

 

 

Write a critical response

France: The country’s first ‘saviour sibling’ is a ‘double-hope baby’
By Annick Chapoy on July 18th, 2011
The birth, in France, of its first baby to be conceived by artificial insemination on top of the selection of an embryo based on its blood, has sent new flames into the hot parliamentary debate over the reform of bioethics law.
The child’s deliberate embryonic selection rested on it not having the gene for beta thalasaemia, and its birth potential to help cure beta-thalasaemia suffered by two older siblings. Theoretically, the use of ‘saviour siblings’ has been allowed since 2006, when the 2004 Bioethics Law and associated decrees was passed. The USA has utilised this for about ten years, but such a birth is rare in Europe – and, depending on the results of a current debate, might become even rarer in France.
Umut-Talha, a name meaning 'our hope' in Turkish, entered life this February in Clamart, south-west of Paris. He weighed 3.65kg and was pronounced ‘very healthy’. His birth resulted from in vitro fertilisation after a double pre-implant genetic diagnosis that enabled doctors to choose an embryo that would not carry the disorder beta-thalasaemia, and whose blood and tissue would be compatible with that of his brother and sister. This type of technique was legalised in France with the Bioethics Law of 2004, but is still the source of great controversy in the public.
It is the first successful birth resulting from this type of pregnancy in the country. The practice is legal in numerous other European countries, including Spain and Belgium where, in 2005, the first two 'medicine babies' in Europe were born. The first birth of this type took place in the USA in 2000.
France’s first so-called ‘saviour sibling’ was born to parents of Turkish origin and he was conceived under circumstances that would have been unthinkable only a generation ago. Umut Talha’s parents had approached the hospital in Clamart just over a year ago. They had a serious problem - their two youngsters were both afflicted with the inherited blood disorder beta thalasaemia, which requires monthly blood transfusions. The parents knew the hospital was one of only three in France that was developing a treatment for their children's illness.
An embryo was screened and genetically selected from an original group of 12 embryos. It was chosen to ensure it did not carry the Beta thalasaemia gene and also due to its compatibility with the sick siblings. Besides selecting an offspring that would be spared from the disorder, the parents hoped their future baby could also become a donor of the right kind of treatment cells.
Born disorder-free, the baby’s cells also proved compatible with his two-year-old sister. Doctors feel confident that she will be cured with the cells from his discarded umbilical cord, and her monthly blood transfusions will be discontinued.
The family have since returned to their home in southern France, but plan to return to Clamart to undergo the same procedure to cure their other child, Umut’s four-year-old brother.
Following his birth, French newspapers spread ‘Medicine baby’ headlines across their pages. However, Professor René Frydman, a fertility pioneer and the ‘medical father’ of the first French test-tube baby in 1982, oversaw Umut’s case, said he preferred the term ‘double-hope baby’.
‘Medicine baby is a media term invented by people who are against this kind of procedure,’ said Prof. Frydman. In English-speaking countries, the terms ‘donor baby’ and ‘saviour sibling’ have been widely used in the media.
Umut certainly presents a double hope for his parents: the hope of having a new, healthy baby, and the hope of curing one of their sick children.
However, other scientists, religious groups and parents beg to differ. The issue of saviour babies has raised complex ethical debates, and renewed fears of a move towards ‘designer babies’, or babies whose traits – e.g. intelligence, eye-colour and height – have been predetermined.
Thus, Umut’s birth has raised questions among medical, political as well as religious circles in France. Christine Boutin, President of the Christian-Democratic party, denounced an ‘instrumentalisation of the human being, conceived in the sole purpose of being used’, while the head of the Bishop’s Conference said he was ‘totally opposed to a procedure by which somebody is being used exclusively to serve somebody else’.
The timing of Umut's birth was also significantly timely - just as the very law that allows for cases such as this to be revised. Observers say that the existing legislation guiding biotechnology in France might be tightened and restrict research in certain fields, including stem cells.
The country’s standing bioethics law allows for cases like Umut’s. In fact, the government has earmarked €800,000 per year for Clamart to practice and develop the procedure.
Nonetheless, Prof. Frydman and colleagues say a lot more needs to be done, complaining of endless hurdles to launch further research and access funds. They regret that France has started a decade after the USA and that the government is still reluctant to give them full backing.