If you were designing a respirator, what parameters would you pay attention to in terms of fluid mechanics? explain in detail.?

If you were designing a respirator, what parameters would you pay attention to in terms of fluid mechanics? Please explain in detail.
AD Admin asked on 13 January 2021, 16:22
1 answers / 0 votes / 39 views

A proposed conveyor system is modeled as a plate of mass M moving without slipping on small cylindrical rollers of mass m and radius r. Determine the speed of the plate after it has moved a distance l, starting from rest, along an inclined plane. Consi?

A proposed conveyor system is modeled as a plate of mass M moving without slipping on small cylindrical rollers of mass m and radius r. Determine the speed of the plate after it has moved a distance l, starting from rest, along an inclined plane. Consider (a) free rollers, and (b) rollers freely rotating about fixed axes. Assume the plate is on three rollers at all times as it moves a distance l.
A proposed conveyor system is modeled as a plate of mass M moving without slipping on small cylindrical rollers of mass m and radius r. Determine the speed of the plate after it has moved a distance l, starting from rest, along an inclined plane. Consi?
AD Admin asked on 13 January 2021, 16:00
1 answers / 0 votes / 29 views

Advanced Accounting_CHAPTER_14.docx Ull scr Press Techn ology infrastructure Home Onions Corporate 310 16901 41 2010 S 316 1207 372 15.436 09.786 2010 45 8349 4.17',' Extemal 38213 8.410 Revenu— from in the United million. 92.240 and i 2 ?

PressEsto exit full screen ntersgannut Rrwu tmual Rnerues 2010 209 316 $ 653 $ 1,098 $ 37.198 40,015 37.610 38213 209 Energy intrastructure oew infrastructire 37514 S 40,648 S 43,046 s7 860 38517 41 605 250 304 79 NBC Universal CE Capial Home & Businacss Sobations Corporate items and elhmanation Total Revenues from astomers located in the United States were S70 50i million, $2240 million, and S85,012 millican in 2010, 20), and 208, respect 15.4 105 I6.79 15365 48277 8410 4,998 1601 475040 1,469 ,79 15833 8.445 10,117 8599 (1.927) 2510 (3535) $150211 S155278 S181 581 - S S SI50211 $1 56278 2,488 4175 ty anE and tgupmnemut Aidtics Deprtahon ait nNRI 2010 38,606 66is S 6973 Enetgy trastructiare ectneoY irastructire L,012 1,3 S 911 994 51 NBC UnvCTSal CE Capit Home &Busns Sstioas Corporale ienisael enu. s 45 o,177 607,707 4965 627541 6,140 4 7156 0049 S751 216 S78101 S707X41 815 (111) Total ,668 S18,62 S11,762 S12,675 Basic for Presentation Our operating businesses are organized based on the nature of mnarkets and customers. A description of the operating segments follow5 Energy Infrastructure Power plant products and services, including design, installation, operation, and maintenance services are sold into global markets. Gas, steam, and aeroderivative turbines, generators, COmbined cycle systems, controls, and related services, inciuding total asset optimization solutions, equipment up grades, and long-teTm maintenance service agreements are sold to power generation and other industrial customers. Renewable energy solutions include wind turbines and solar technology. Water treatment services and equipment inciude specialty chemical treatment programs, water purification equipment, mobile treatment systems, and desalination processes. Energy ofers integrated solutions using sensors for temperanure, pressure, moisture, gas, and flow rate as well as nondestrucive testing inspection equipment, including radiographic, ultrasonic, remote visual, and eddy current. in addition, it provides protection and control, cOmmunications, power sensing, and power quality products and services that increase the reliability of electrical power networks and critical equipment and offers wireless data transmission. Electrical equipment and conrol products include pOwer panels, switchgear, and circuit breakers. The Oil && Gas business seiis Surtace and subsea driling and production systems including blowout preventers, equipment for floating production platforms, compressors, turbines, turbo- expanders, and high-pressure reactors to national, international, and independent oil and gas companies. Services include equipment overhauls and upgrades, pipeline inspection and integrity services, remote monitoring, and diagnostic and contractual service agreements. ****** Result for Image/Page 2 ****** Technology Infrastructure Aviation products and services include jet engines, aerospace systems and equipment, replacement parts, and repair and maintenance services for all categories of commercial aircraft; for a wide variety of military aircraft, including fighters, bombers, tankers, and helicopters; for marine applications; and for executive and regional aircraft. Products and services are sold Woridwide to airframe manufacturers, airines, and govemment agencies. Healthcare products include diagnostic imaging systems such as Magnetic Resonance (MR), Computed Tomography (CT) and Positron Emission Tomography (PET) Scanners, X-ray, nuclear imaging, digital mammography, and molecular imaging technologies. Healthcare-manufactured technologies include patient and resident monitoring, diagnostic cardiology, uitrasound, bone densitometry, anesthesiology and oxygen therapy, and neonatal and critical care devices. Related services include equipment monitoring and repair, information technologies, and customer productivity services. Products also inciude diagnostic imaging agents used in medical scanning procedures, drug discovery, biopharmaceutical manufacturing and purification, and tools for protein and cellular analysis for pharmaceutical and academic research, including a pipeline of precision molecular diagnostics in development for neurology, cardiology, and oncology applications. Products and sevices are sold woridwide to hospitals, medical facilities, pharnaceutical and biotechnology companies, and to the life science research market. Transportation products and maintenance services include diesel electric locomotives, transit propulsion equipment, motorized wheels for off-highway vehicles, gearing technology for wind turbines, drill motors, marine and stationary power generation, raiiway signaling, and office systems. Effective January 1, 2011, we reorganized the Technology Infrastructure segment into three segme
Advanced Accounting_CHAPTER_14.docx Ull scr Press Techn ology infrastructure Home Onions Corporate 310 16901 41 2010 S 316 1207 372 15.436 09.786 2010 45 8349 4.17',' Extemal 38213 8.410 Revenu— from in the United million. 92.240 and i 2 ?
AD Admin asked on 13 January 2021, 15:45
1 answers / 0 votes / 22 views

Question 1 City Ris a large city with 4 million residents, and City Sis a smaller city with 0.25 million residents. Researchers believe that the proportion of City Sresidents who regularly ride bicycles is between 10 percent and 25 percent and the pr?

Question 1 City Ris a large city with 4 million residents, and City Sis a smaller city with 0.25 million residents. Researchers believe that the proportion of City Sresidents who regularly ride bicycles is between 10 percent and 25 percent and the proportion of City Residents who regularly ride bicycles is between 20 percent and 50 percent Suppose two independent random samples of residents from each city will be taken and the proportion of residents who ride bicycles is recorded. Based on the population proportion of residents who regularly ride bicycles, which of the following sample size is ge enough to guarantee that the sampling distribution of the difference in sample proportions will be reimately hora 30 in City Rand 30 in City B 30 in Cny Rand 60 in Crys с so in Chy Rand 30 in Cinys D So in Chand 100 in Chys 100 in Rand 50 in Chys MacBook Air 06 esc # & 7 0 # $ 8
Question 1 City Ris a large city with 4 million residents, and City Sis a smaller city with 0.25 million residents. Researchers believe that the proportion of City Sresidents who regularly ride bicycles is between 10 percent and 25 percent and the pr?
AD Admin asked on 13 January 2021, 10:50
1 answers / 0 votes / 194 views

There are two types of professional wrestlers: “good guys” and “bad guys.” Between any pair of professional wrestlers, there may or may not be a rivalry. Suppose we have n professional wrestlers and we have a list of r pairs of wrestlers ?

There are two types of professional wrestlers: “good guys” and “bad guys.” Between any pair of professional wrestlers, there may or may not be a rivalry. Suppose we have n professional wrestlers and we have a list of r pairs of wrestlers for which there are rivalries. Give an O(n + r)-time algorithm that determines whether it is possible to designate some of the wrestlers as good guys and the remainder as bad guys such that each rivalry is between a good guy and a bad guy. If is it possible to perform such a designation, your algorithm should produce it.
AD Admin asked on 12 January 2021, 16:37
1 answers / 0 votes / 43 views

A geometric sequence is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio. For example, the sequences 2, 6, 18, .... 3,15,75, …. are a geometric sequen?

A geometric sequence is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio. For example, the sequences 2, 6, 18, .... 3,15,75, …. are a geometric sequences with common ratios 3 and 5 respectively. A geometric sequence is generally characterized by three numbers, the first term ‘a’, the common ratio ‘r’ and the number of terms ‘n’. A geometric series is the sum of numbers in a geometric sequence. 2+6+18 and 3+15+75 are examples of geometric series with three terms each. The nth term of a geometric series with initial value ‘a’ and common ratio ‘r’ is given by:
A geometric sequence is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio. For example, the sequences 2, 6, 18, .... 3,15,75, …. are a geometric sequen?
AD Admin asked on 12 January 2021, 16:33
1 answers / 0 votes / 63 views

A hypothetical metal of tetragonal crystal structure has lattice parameter of a = b = 0.459 nm, and c = 0.495 nm. It has an APF = 0.692. and atomic radius = 0.1625 nm. Compute: a.) the number of atoms in its unit cell? b.) its true density (in grams/cm3)?

A hypothetical metal of tetragonal crystal structure has lattice parameter of a = b = 0.459 nm, and c = 0.495 nm. It has an APF = 0.692. and atomic radius = 0.1625 nm. Compute: a.) the number of atoms in its unit cell? b.) its true density (in grams/cm3) if its mol. weight = 114.82.
AD Admin asked on 12 January 2021, 16:30
1 answers / 0 votes / 38 views

A traveler in Europe wants to visit each of the cities shown on the map exactly once, starting and ending in Brussels. The distance (in kilometers) between each pair of cities is given in the table. Find a Hamiltonian circuit that minimizes the total dis?

A traveler in Europe wants to visit each of the cities shown on the map exactly once, starting and ending in Brussels. The distance (in kilometers) between each pair of cities is given in the table. Find a Hamiltonian circuit that minimizes the total distance traveled. (Use the map to narrow the possible circuits down to just a few. Then use the table to find the total distance for each of those.)
A traveler in Europe wants to visit each of the cities shown on the map exactly once, starting and ending in Brussels. The distance (in kilometers) between each pair of cities is given in the table. Find a Hamiltonian circuit that minimizes the total dis?
AD Admin asked on 12 January 2021, 16:28
1 answers / 0 votes / 70 views

Operation Management ?

In operations management, as in life, a balanced approach is often the best policy. One of the best examples of the benefits of this in operations management is the lean approach. Explain the basic factors that must be in place in order to achieve a balanced lean system.
LO Loeyverse asked on 12 January 2021, 16:19
4 answers / 0 votes / 61 views

Membrane Potential "Why are some cells electrically active?" Model 1: The Sodium/Potassium pump Outside (extracellular) Inside (intracellular) Outside (extracellular) Inside (intracellular) o o Outside (extracellular) Inside (intracellular ATP Sodium?

Membrane Potential "Why are some cells electrically active?" Model 1: The Sodium/Potassium pump Outside (extracellular) Inside (intracellular) Outside (extracellular) Inside (intracellular) o o Outside (extracellular) Inside (intracellular ATP Sodium ion Potassium ion ATP ATP Sodium ion Inorganic phosphate Outside (extracellular) Inside (intracellular) Outside (extracellular Inside (intracellular) Outside (extracellular) Inside (intracellular) Critical Thinking Questions l. 2. What ion is being moved QU! of the cell according to model l? Na+ ions move out. a. a. How many of these are being moved out? Three Na+ ions are moved out each time. Is this ion positively or negatively charged? the ion is positively charged. What ion is being brought into the cell according to model l? K+ ions are brought into the cell ****** Result for Image/Page 2 ****** a. a. How many of these are being moved in? two each time Is this ion positively or negatively charged? the K+ ion is positively charged 3. 4. After this pump runs 5 times, how many positive ions will be moved outside the cell? After running 5 times, 15 positive ions will be outside the cell. a. b. c. How many positive ions will have been brought into the cell after 5 cycles of the pump? Ten positive ions will be brought inside the cell. What is the difference in positive ions between the inside and the outside of the cell after 5 cycles? The difference ions will be brought inside the cell. What is the difference in positive ions between the inside and the outside of the cell after 70 cycles? After 70 cycles the difference is -70. Imagine instead of pumping ions, we are pumping dollars. Is the cell spending more (pumping out) than it brings in? Yes, the cell is spending more pumping out than it brings in. a. Application If you spend more than you bring in, what happens to your bank balance? If you spend more than you bring, your bank balance becomes negative. 5. In the space below draw a line to represent the cell membrane. Label one side 'inside' and the other side 'outside'. Place + symbols on the side of the membrane that would have the positive bank account (according to our analogy above) and put — symbols on the side of the membrane that would have the negative bank balance. ****** Result for Image/Page 3 ****** Outside Inside Model 2: A polarized membrane Na+ Na+ Na+ Na+ Na+ Na+ K+ Na+ outside inside Na+ Critical Thinking Questions Na+ Na+ Na+ Sodium ion channel K+ 6. Place a large + sign on the side of the membrane with the most positive charges and a — sign on the side of the membrane with the least number of positive charges. Positive charge should be on the outside of the cell and negative charge on the inside. 7. Where are most of the sodium ions, inside or outside the cell? Most of the Na+ are outside of the cell. 8. If the channel were to open, which way would sodium travel through the channel based on the laws of diffusion? Based on the laws of diffusion, Na+ would travel into the cell down the concentration gradient. ****** Result for Image/Page 4 ****** 9. What effect would this have on the membrane potential (the difference in charge across the membrane)? If large amounts ofNa+ started to move into the cell, it would make the membrane potential less negative on the inside. Application > -50 E -10 -20 -30 -40 o -60 -80 1 2 3 4 5 6 7 Time (milliseconds) 8 9 10 11 10. This chart shows the resting membrane potential of a nerve cell. Notice that the line is running at around -70 millivolts. The resting membrane potential has a negative value. Based on what we've a. already learned - is this measuring the inside or outside of the cell? [i.e. which one is negative with respect to the other?] The negative value for the membrane potential is measuring the inside of the cell. b. If a sodium channel opens, will the inside of the cell become more positive or more negative as the sodium ions come in along their concentration gradient? If a Na+ channel open, the inside of the cell will become more positive. Based on your answer to 'a' and 'b', extend the line in the chart to show what c. might happen to the potential when sodium channels open. The membrane will become depolarized. ****** Result for Image/Page 5 ****** -10 -20 -30 -40 > -50 -60 -70 -80 d. 1 2 3 4 5 6 7 Time (milliseconds) 8 9 10 11 Before the sodium channel opened, the membrane was polarized, like a battery (a positive and negative side). After opening the sodium channel, is the cell going to be polarized anymore? After opening the sodium channel, the cell is no longer polarized with a positive side and a negative side. Model 3: A depolarized membrane outside Potassium ion channel inside Critical Thinking Questions Sodium ion channel Na+ 11. What has changed about the sodium channel in this model (compared to model 2)? In the model 3 the sodium channel is open, and model two is not. 12. How does the number of positive ions inside the cell compare with the number outside the cell? Now the number of positive ions on the two sides of the cell are the same. ****** Result for Image/Page 6 ****** 13. Compare this model to model 2 which contained a polarized membrane. Based on the ion distribution in these two models, devise definitions as a group, for the following: Polarized: when there is a charge difference on the two sides of the membrane. Depolarized: When there is not a charge difference on the two sides of the membrane. Application 14. Based on the concentration of potassium ions inside and outside the cell, which way do you think K+ ions would go if the potassium ion channel were to open and the sodium channel were to close? [hint: draw it if you need to] If K+ channels were to open and Na+ channels were to close, K+ would go out of the cell. 15. Would this depolarize or repolarize the membrane? If K+ begins to move out the cell, once again there will be more positive charges on the outside of the cell and this will repolarize. Exercises o o 40 20 O -20 -40 -60 -80 -100 Time (sec) Find the points on this graph where membrane potential went up but went back down 1. again without causing a drastic change in the polarity of the cell. Label that portion of the graph Local Depolarization. ****** Result for Image/Page 7 ****** Draw an arrow at the place on the graph where the entire membrane started to depolarize 2. [hint: it's when potential starts to rise as fast as it can]. About what voltage was achieved before the membrane started to actually a. depolarize (i.e. where your arrow is pointing) b. Threshold is also called 'the point of no return' and refers to the voltage at which the entire membrane will depolarize. Based on your answers to 1 — 2a, draw a dotted line across the membrane at the voltage that represents the threshold voltage. Circle the point on the graph where the potassium channels open and the sodium channels 3. close. Sometimes the potassium channels stay open long enough that the membrane will 4. hyperpolarize. Indicate on the graph where the membrane is hyperpolarized. 40 20 .20 n -40 -80 Ire mem rane starts to epolariz oca Na+ channels close and K+ channels open Threshold voltage hyperpolarization Time (sec) -60 mv depolarization
Membrane Potential "Why are some cells electrically active?" Model 1: The Sodium/Potassium pump Outside (extracellular) Inside (intracellular) Outside (extracellular) Inside (intracellular) o o Outside (extracellular) Inside (intracellular ATP Sodium?
AD Admin asked on 12 January 2021, 01:02
1 answers / 1 votes / 40 views

Determine the maximum force P that can be applied without causing the two 50-kg crates to move. The coefficient of static friction between each crate and the ground is μs= 0.25?

Determine the maximum force P that can be applied without causing the two 50-kg crates to move. The coefficient of static friction between each crate and the ground is μs= 0.25
Determine the maximum force P that can be applied without causing the two 50-kg crates to move. The coefficient of static friction between each crate and the ground is μs= 0.25?
AD Admin asked on 11 January 2021, 17:50
1 answers / 0 votes / 47 views

Biological?

Why can gastric juice digest exogenous meat,but under normal circumstances,"it doesn't self digest"human stomach wall?
ST Starry asked on 11 January 2021, 17:08
2 answers / 0 votes / 44 views

Entropy?

Predict the sign of the entropy change for the following processes. Give a reason for your prediction. (a) Pb2+(aq) + S2−(aq) → PbS(s) (b)2Fe(s) +O2(g) → Fe2O2(s) (c) 2C6H14(l) +19O2(g) → 12CO2(g) + 14H2O(g)
SH Sheenapertez asked on 11 January 2021, 08:10
2 answers / 0 votes / 93 views

Entropy?

1. Indicate which substance in the given pairs has the higher entropy value. Explain your choices. (a) C2H5OH(l) or C3H7OH(l) (b) C2H5OH(l) or C2H5OH(g) (c) 2H(g) or H(g)
SH Sheenapertez asked on 11 January 2021, 08:09
2 answers / 0 votes / 53 views

Spontaneity?

4. A helium-filled balloon spontaneously deflates overnight as He atoms diffuse through the wall of the balloon. Describe the redistribution of matter and/or energy that accompanies this process.
SH Sheenapertez asked on 11 January 2021, 08:06
2 answers / 0 votes / 51 views

The side effects of a new drug are being tasted against a placebo. A semple random sample of 565 patients yield the results below. At a significance level of a =0.10, is there enough evidence to conclude that the treatment is independent of the side effec

The side effects of a new drug are being tasted against a placebo. A semple random sample of 565 patients yield the results below. At a significance level of a =0.10, is there enough evidence to conclude that the treatment is independent of the side effects of nausea?
WA Walker asked on 11 January 2021, 03:47
2 answers / 0 votes / 37 views

1) A manufacturer will purchase a battery from one of two suppliers. This manufacturer will get the battery from supplier 1 with probability 0.6 and from supplier 2 with probability 0.4. A battery obtained from supplier 1 has a lifetime, which is expone?

1) A manufacturer will purchase a battery from one of two suppliers. This manufacturer will get the battery from supplier 1 with probability 0.6 and from supplier 2 with probability 0.4. A battery obtained from supplier 1 has a lifetime, which is exponentially distributed with a mean of 6 months. On the other hand, the lifetime of a battery from supplier 2 is again exponentially distributed with a mean of 5 months. is the probability that the purchased battery (from supplier 1 or 2 with aforementioned probabilities) will last more than 5 months?
1) A manufacturer will purchase a battery from one of two suppliers. This manufacturer will get the battery from supplier 1 with probability 0.6 and from supplier 2 with probability 0.4. A battery obtained from supplier 1 has a lifetime, which is expone?
AD Admin asked on 11 January 2021, 01:19
1 answers / 0 votes / 89 views

Calculate Total Assessable Income, Taxable Income, Tax Liability, Medicare Levy and Medicare Levy Surcharge, if applicable, for the tax payer (James) with information belowJames is a resident single tax payer of Australia for the tax year 2019-2020 His ?

Calculate Total Assessable Income, Taxable Income, Tax Liability, Medicare Levy and Medicare Levy Surcharge, if applicable, for the tax payer (James) with information below: James is a resident single tax payer of Australia for the tax year 2019-2020 His Taxable Salary earned is $170,000 (Including tax withheld) having no private health insurance. James has a student loan outstanding for his previous studies at Monash University of $57,000. James’ employer pays superannuation guarantee charge of 9.5% on top of his salary to his nominated fund. James earned a passive income of $15,000 from the investments in shares in the same tax year. provide the detailed calculations, rates and explanations with the screenshots of rates from ATO website.
AD Admin asked on 10 January 2021, 18:34
1 answers / 0 votes / 42 views

Basic Mathematic?

4. A patient is to take a 50 mg pill of a certain drug every morning. It is known that the body eliminates 40% of the drug every 24 hours. a) Find a recursive sequence that models the amount An of the drug in the patient’s body after each pill is taken. b) How much of the drug remains in the patient’s body after 5 days?
AL Alia asked on 07 January 2021, 15:26
2 answers / 0 votes / 108 views

Question 2 (10 Marks): a) Draw the block diagram of the push-pull amplifier to load which uses two voltage supply and one voltage supply. (4 Marks) b) ?

Question 2 (10 Marks): a) Draw the block diagram of the push-pull amplifier to load which uses two voltage supply and one voltage supply. (4 Marks) b) For a class B amplifier with VCC=25 V driving an 8Ω load, determine: i) Maximum input power. ii) Maximum output power. iii) Maximum circuit efficiency. (3 Marks) c) Calculate the total harmonic distortion for an output signal having fundamental amplitude of 2.1 V, second harmonic amplitude of 0.3 V, third harmonic component of 0.1 V, and fourth harmonic component of 0.05 V. (3 Marks)
Question 2 (10 Marks): a) Draw the block diagram of the push-pull amplifier to load which uses two voltage supply and one voltage supply. (4 Marks) b) ?
KA Kanathasan1972 asked on 06 January 2021, 13:31
2 answers / 0 votes / 63 views