BIOS256 Week 4 Lab

O You are running an industrial research study together with your project team to improve energy efficiency in a combustion process. The purpose of the research is to identify the optimum air-fuel ratio for the combustion process in a boiler under varying conditions of air supply and quality of fuel. The study would involve design of experiments, data collection and analysis, simulation of the different variables and validation of the optimum parameters. There is a lot of pressure to improve the energy efficiency as there is a forecast of fuel price rise in the forthcoming month. Based on the CRPE code of ethics, explain two critical precautions which the engineers have to consider before implementation of the data collection process for the industrial experiment. to be taken during the Describe briefly five ethical measures experimentaldata collection in order to ensure validity of results. Explain two precautions to be taken during the report writing on the research study carried out…

Two kinds of bacteria are found in a sample of tainted food. It is found that the population size of type 1, N1 and of type 2, N2 satisfy the equation dN/dt=-0.1/N1 dN/dt30.7/N2 N1 is equal to 1000 at time equal to zero, while N2 is equal to 30 at time equal to zero. Then the population sizes are equal N1 = N2 at what time? (4 decimal places)

e IY: %VY OLD ? د ميکانيك شهري 2021.pdf UNIVERSITY OF BASRAH - COLLEGE OF ENGINEERING DEPARTMENT OF CIVIL ENGINEERING Subject: Engineering Mechanics-Static Class: 1st year, 1st term Exam. : Semester Date: 16/3/2021 Examiner: Dr. Mazin, Dr. Aqeel, Dr.Ahid and Dr.Jaffar Time: 1.5Hours Q1] (10 Marks) A- In Fig.A , If the resultant force acting on the bracket is to be 642 N directed along the positive x axis, determine the magnitude of F. B- In Fig.B , Determine the magnitude of the resultant force acting on the screw eye and its direction measured clockwise from the x axis. C- In Fig.C , Resolve the 100N force into components along the u and v axes, and determine the magnitude of each of these components. D- In Fig.D, Determine the moment of the force about point O. 300 N 60N 25° 32 45° 60° 505 N 50° 40N Fig. A 50 N Fig. B 400 N 100N 28° 18 2.12 m Fig. C 2.12 m Fig.D Q2] (10 Marks) A- In Fig.A , Replace the loading system by an equivalent resultant force and specify where the resultant's…

mechanical engineering works that can be related to algorithm

Dessert - sealed Date: Time: Made: 28/11/21 18:22 Ready: 28/11/21 20:22 Discard:03/12/21 18:22 Fri OLOGY BLANCHARDSTOWN - Google Chrome pluginfile.php/394133/mod_resource/content/1/PME1%20Sample%20Class%20Test%20Dec%202021.pdf FTECHNOLOGY BLANCHARDSTOWN 2/9 | 250% + | E O a) Calculate the principal stresses, given that the state of plane stress for an element is: Oy = 65MPA, Oy =-55MPA, Txy =-30MPa TXY Y

Macro farms Ltd can purchase two types of fertilizer which contain the following percentage                                        Nitrate        Phosphate       Potash                 Type X              18                    5                      2                  Type Y               3                   2                       5 For certain type of crop, the following minimum quantities (kg) are required                                      Nitrate         Phosphate      Potash                                         100                 50                  40               Type X cost GHS10 per kg and type Y cost GHS5 per kg. The company currently buys 1,000 kg of each type and wishes to minimize it expenditure on fertilizers.Required 1. What is the minimum expenditure that can be incurred on fertilizer?  2. Find the savings the company can make by switching from it current policy to your recommendation.

3. Microfluidic channels will need to be fabricated on a key micro-scale sensor used by aerospace industries. Before running machining tests and analyzing machined quality, preliminary efforts are needed to evaluate selected materials and factors affecting machining process¹. Three material candidates have been selected, including 422SS (stainless steel), IN718 (nickel alloy), and Ti64 (titanium alloy) with their measured tensile properties and equation of true stress-true strain relationship used listed below. Tref25°C. Specifically, three factors will need to be evaluated, including different materials, temperature, and size effect. Please calculate true stress values for true strain ranging between 0-3 for each case listed below. Material A (MPa) & (S-¹) Tm (°C) 870 0.01 1520 422SS (Peyre et al., 2007) IN718 (Kobayashi et al., 2008) Ti64 (Umbrello, 2008) 980 1 1300 782.7 1E-5 1660 Material 422SS (CINDAS, 2011) IN718 (Davis, 1997) Ti64 (Fukuhara and Sanpei, 1993) 0 = X G (GPa) 1+ B…

2. The results from a settling column test performed on a municipal sewage from a certain town were as presented below. The experiments were conducted on a sample of sewage which is sieved through a 1.2 mm mesh to remove gross solids that would block valves. 501 of the sample weighed 1.352 gm. After drying. Sampling Time (min.) 0 60 180 360 Experimental results for amount of SS remaining in the sample (mg/l) Sampling depth (cm) 100 230 150 118 90 200 230 150 143 115 300 230 159 147 134 400 230 157 152 145 The sewage treatment work incorporates two primary settlement tanks each of a diameter of 25 m. The sewage flow to the tanks is 0.3 m³/s. Find the percentage expected SS removal at the works.

QUESTION 2 Thermocouples are devices used to measure temperature of a given sample or the surrounding medium. These devices feature a "bead", which has a spherical shape, and produces voltage upon change in temperature. For an engineering application at a pharmaceutical company, thermocouple devices are being tested for their responsiveness, i.e. how fast it can detect temperature changes in the environment (surrounding air). The engineers at this company have specified design constraints for an ideal thermocouple: it must detect temperature changes no later than 1.5 minute, and the reported temperature value must be reasonably correct: at most %3 difference between measured and actual temperature values is allowed. Four thermocouples from different vendors are being tested. Relevant properties of these devices are listed below: Thermal conductivity Density 36 W/m*K 36 W/m*K 42 W/m*K 33 W/m*K Specific Heat 140 kJ/kg*K 120 kJ/kg*K 150 kJ/kg*K 160 kJ/kg*K Device Bead Diameter…

You are working in a biology lab during your summer break. Your supervisor asks you to perform an experiment to find the effective spring constant (in N/m) of a partial molecule of DNA (deoxyribonucleic acid). You perform experiments and find that a single straight portion of a DNA molecule is 2.19 μm long. You then perform an activity that charges the ends of the molecule; each end becomes singly ionized: negative on one end, positive on the other. After the ends are charged, the molecule shrinks by 1.31% of its length. 1.21e-9

Pressurized eyes Our eyes need a certain amount of internal pressure in order to work properly, with the normal range being between 10 and 20 mm of mercury. The pressure is determined by a balance between the fluid entering and leaving the eye. If the pressure is above the normal level, damage may occur to the optic nerve where it leaves the eye, leading to a loss of the visual field termed glaucoma. Measurement of the pressure within the eye can be done by several different noninvasive types of instruments, all of which measure the slight deformation of the eyeball when a force is put on it. Some methods use a physical probe that makes contact with the front of the eye, applies a known force, and measures the deformation. One non-contact method uses a calibrated “puff” of air that is blown against the eye. The stagnation pressure resulting from the air blowing against the eyeball causes a slight deformation, the magnitude of which is correlated with the pressure within the eyeball.…

5@students.liu.edu.lb? Switch account 1ON 15 MCQS A standing wave on a string of length L = 3 m is described by the following equation: y(x,t) = 0.08 sin(2Ttx) cos(300Tt). The fundamental frequency, f1, is: %3D 25 Hz 150 Hz 50 Hz 300 Hz 75 Hz The left end of a taut string of length L, is connected to a vibrator with a fixed frequency f. The right end of the string is tied to a suspended object of varying

Unit 7: Dynamic Surfaces and Chains Essay Question :d Cains 333 D 11 M . 11233200 Multiple-Choice Questions What dynamic surfaces can be found in a classic SLR camera? A. Lens B. Shutter C. Aperture adjuster D. Film Which of the following material attributes may present a problem in dynamic surface designing? A. Hardness B. Elasticity C. Opacity D. Smoothness edu.curriculum@stratasys.com Examine the image below. What would you do to improve the nesting layout ad shorten print time? A. Print tall parts and short parts separately B. Rotate tall parts to shorten Z axis height and reduce height differences between two part types C. Align all 6 parts to one row to reduce print-head travel time Increase spacing between parts D.

A nearsighted eye is corrected by placing a diverging lens in front of the eye. The lens will create a virtual image of a distant object at the far point (the farthest an object can be from the eye and still be in focus) of the myopic viewer where it will be clearly seen. In the traditional treatment of myopia, an object at infinity is focused to the far point of the eye. If an individual has a far point of 39.5 cm, prescribe the correct power of the lens that is needed. Assume that the distance from the eye to the lens is negligible.

2. An operator provides mobile communication service for a city with area of 3500 Km' and has population of 1.56 million. Following parameters have been specified for the cellular network: Downlink band: 800 MHz to 940 MHz, • Channel bandwidth = 200 KHz, • Probability of Blocking 1%, Frequency Parameters i=2 & j=1, Cell radius = 0.85 Km If the user has an average of 2 calls/hour and each call lasts for an average of 3 minutes. Using table 1 obtain: i. Number of users that could be served per a cell, (14 Marks) No. Channels/cell BP= 0.01 BP= 0.005 BP= 0.002 5 1.36 1.13 0.9 10 4.46 3.96 3.43 20 12 11.1 10.1 70 56.1 53.7 51 100 84.1 80.9 77.4

iPhone -... blem Set 1 Question 1 of 10 View Policies Current Attempt in Progress X = y = Electric C... Z= I eTextbook and Media Save for Later in https://m... education.wiley.com National... The force, F, of the wind blowing against a building is given by F = CopV²A/2, where Vis the wind speed, p the density of the air, A the cross-sectional area of the building, and CD is a constant termed the drag coefficient. Determine the dimensions of the drag coefficient, x, y, and z in the expression CD = M*LYT. i WP Problem... W Support -... WP NWP Ass... -/10 E Start Pag Attempts: 0 of 5 used Submit Answer

O True O False QUESTION 3 Compute the expected properties of modulus of elasticity (Ec) of a composite made from S-glass fibers and a Polyester matrix. The volume fraction of fibers is 30%. (Unit is psi.) Properties of Sample Matrix and Filler Materials Tensile strength Tఅబండి Specific weight bai MPa 10 psi GPa Iblin Matrix materials: Polyester Ероху Aluminum 10 18 45 69 124 310 1170 0.40 0.56 10.0 165 2.76 3.86 69 114 0.047 12.7 0.047 12.7 0.100 0.160 27.1 Titanium Filler materials: 170 43.4 S-glass Carbon-PAN Carbon-PAN (high-strength) Carbon (high-modulus) Aramid 600 470 4140 3240 5650 2200 3450 12.5 33.5 40 100 86.2 231 276 690 131 0.09 0.064 24.4 17.4 17.7 820 325 500 0రవ 0.078 0.052 21.2 19.0 14.1 Click Save and Submit to save and submit. Click Save All Answers to save all answers. earch

I asked bartleby to solve this question earlier, it gave me AI answer which is completely different to what's shown in this answer. I don't know which one is correct now. I have attached screenshots of the AI answer. Can you clarify which is correct. Also I previously asked about pv diagram and you said ' the curve in the explanation is correct', did you mean in your explanation or the one I showed as an example? Please advice

How may acoustic designers alter the design of a room, which was previously used for music performances, into a room now to be used for spoken word performances? Use annotated diagrams for your response.   dear expert, make sure to include the diagrams please.

At 250C, the interfacial tension between water and n – octyl alcohol is 8.50 dyne/cm. if the surface tension of n-octyl is 27.53 dyne/cm and that of the water is 72.75 dyne/cm, predict whether water spreads on the alcohol by calculating a) Work of cohesion of n-octyl b) Work of adhesion and c) the spreading coefficient of water on the alcohol. Will alcohol spread on water?

:4G 10:48 Shashi Just now Engineering MechanCTE A1 - Lopy - Copy Canspat ibylity Mode- Word (Product Activation Iasiled) INSTRT DESIGN FAGE LAVOUT RETERENCES MAILINGS REVIEW VIEW Times New Ri-|18 KA Aa E-E- E. EE TAaBbCc[ AaBbCc[ AaBbC AaBbCc AaB AuBbCcD AaBbCcC AaBbCcl BIU X, x* A- - A 1 Normai TNo Spac Houding Heading 2 Titte Subtine Subtle Em Enptiat le Paah Set Fas = 0.776 KN (C). Question 2: Determine the force in members BC, CF, and FE. State if the members are in tension or compression. 4 ft B 4 ft 4 ft -4 ft- 600 lb 600 lb 800 lb 3E ENGLISH (UNTED STATES) Nidhi is presenting

ECO 5. AUTOMOTIVE. The power an engine produces is called horsepower. In mathematical terms, one horsepower is the power needed to move 550 pounds one foot in one second, or the power needed to move 33,000 pounds one foot in one minute. Power, in physics, is defined simply as the rate of doing work. The formula below gives the horsepower at 5,252 radians per second. https://philkotse.com/toyota-corona-ior-sale-in-baguio/1991-for-sale-in-aid7017151 625T 1313 where H is the horsepower and T is the torque a. Find the inverse of the model. b. If a taxi produces a horsepower of 200, what is the torque it generates? Solve here:

In a linear spring finite element model, as per the finite element model’s sign convention, which one of the following statements is true?   Select one: a. If Fe1 is positive then the spring is under tension b. If Fe2 is negative then the spring is under tension c. If Fe2 is positive then the spring is under compression d. If Fe1 is positive then the spring is under compression Clear my choice

The rapid progress of engineering design and information technology has caused difficulties in analyzing system reliability. Because of the increased complexity in system reliability structure (component/subsystem interfaces), many unexpected failure modes could occur, and their behaviors are interdependent. At a system’s design and development stage, the main challenge in analyzing a complex system is the failure uncertainty introduced by the incomplete knowledge of the system. This makes it hard to decompose system reliability into subsystem/component reliability in a deterministic manner, such as series or parallel systems. As a result, some common reliability analysis tools such as fault tree (FT) and reliability block diagram (RBD) become inadequate. Do you agree, why or why not? Are there any other approaches to system reliability assessment beside these tools at the early system’s design and development stage (what are these approaches)?

+ P 4. 5. 1/4 R %24 2. Bb Basic BIM/REVIT Drafting (CAD) X Bb Unit 03 - Reading Measuring loo X uaptc.edu/bbcswebdav/pid-4073050-dt-content-rid-22008907_1/courses/DFT.1005.A10.2021.S0/pdf_activities_03-03.pdf pdf 1 / 2 - Activity 3-3 A | + %00L E区 Reading a Scale Name Tanner Francis Identify the portion of a foot (12") as indicated by the reading from the zero mark (0) on the scales below. Place your answers in the spaces provided. 1. 78 88 92 4. 2. 6. 3. 9 6 1 3. 8. O. 14 13 ju 3 here to search 直 0 85°F F2 F4 F5 F7 %23 F8 prt sc 2 home F10 pua F12 F11 insert 3. 4. 0. 6. 6. K H.

- Moos X O CIVL3106_yahiaz_sprir x Part 1 b Answered: soil mechar x elearn.squ.edu.om/mod/quiz/attempt.php?attempt3D2055593&cmid=903343 IO YouTube Maps التعلم القبلي G IG SYSTEM (ACADEMIC) raur. p Time le From the figure below determine Cc (compression index) 1.9 1.7 1.5 1.3 1.1 0.9 0.7 0.5 + 10 100 1000 Pressure (kPa) Paragraph BI Void ratio !!

00 T R %24 Bb R V qa du/webapps/assessment/take/launch.jsp?course_assessment_id%=_254968_1&course_id%3D 3565256_1&content id= 52826 * Question Completion Status: Attach File Browse Local Files Browse Content Collection QUESTION 2 A company needs to choose one supplier for a particular type of silicon wafer used'in the production of semiconductors. The company has three options. Supplier A sells the silicon wafers for $2.50 per wafer, independently of the number of wafers ordered. Supplier B sells the wafers for $2.40 each but does not consider an order for less than 2,000 wafers. Supplier C sells the wafers for $2.30 each but does not accept an order for less than 3,000 wafers. Assume an order setup cost of $100 and an annual requirement of 20,000 wafers. Assume a 20% annual interest rate for holding cost calculations. a. Which supplier should be chosen to minimize the total annual cost for the wafers, and what is the optimal order quantity? b. If the replenishment lead time for wafers…

C Dynamic Analysis and Aeroelasticity SECTION B Answer TWO questions from this section ENG2012-N The moment of inertia of a helicopter's rotor is 320kg. m². The rotor starts from rest and at t = 0, the pilot begins by advancing the throttle so that the torque exerted on the rotor by the engine (in N.m) is modelled by as a function of time (in seconds) by T = 250t. a) How long does it take the rotor to turn ten revolutions? b) What is the rotor's angular velocity (in RPM) when it has turned ten revolutions?

How may acoustic designers alter the design of a room, which was previously used for music performances, into a room now to be used for spoken word performances? Use annotated diagrams for your response

Learning Goal: To calculate minor head losses and pressure drops for pipe fittings. Minor losses in pipe flow are the result of disruptions to the steady laminar or turblent flow in a pipe by entrances, bends, transitions, valves or other fittings. In general, calculating these losses analytically is too complex. However, all of these losses can be modeled using terms of the form h = KL where Kr, is called the loss coefficient and is determined experimentally. This coefficient relates the minor head loss to the velocity head for the flow. For expansions and contractions, the loss coefficient is calculated using nine the velocity for the smaller diameter pipe. The table below gives some representative values for various minor head losses. These are representative only, and a more complete table would account for different kinds of fittings and connections (like threaded or soldered). Fitting Well-rounded entrance ≥0.15 Flush entrance Re-entrant pipe Discharge pipe Sudden contraction (d₂…

Intro to Transport Processes TRUE or FALSE. Please provide a quick explanation thanks! 1. Each molecule of a system has a certain quantity of mass, thermal energy, or momentum associated with it. 2. Momentum transport in a fluid depends bulk movement of molecules and not on individual molecule of the system.  3. At same mass, the momentum of a molecule is greater than the other molecules if it has less velocity?

A. A customer asked you to explain your choice of a temperature sensor that you used for his PCB. Initially, there were two sensor options. To compare between them, you decided to test their accuracy and precision. Accuracy of a sensor is a measure of how near its reading is to the real value, the nearer the measured value to the real value the better. While precision is a measure of how widely spread the readings of a sensor are [relative to each other] when measuring the same variable, the narrower the spread the better. So, you tested the two sensors by measuring the same temperature, which was 100 C of boiling water, and you recorder the following 10 measurements of each sensor. Which Sensor has higher accuracy, and which one has higher precision. Sensor Sensor readings when measuring 100 C 99.65 100.05 103 102 99.3 s1 100.1 99.1 100.5 99 98.8 98.78 96.9 101.4 98.88 99 S2 99.12 98.9 99 98.69 99.2

OT 8 Q4) Structural Analysis This bridge is made of two-force members attached at the ends. All angles are 45° or 90°. Vertical and horizontal members are all 0.1m long. Support A is a pin joint and support B is a roller. a) Label each member as Tension (T), compression (C), or zero-force (Z). | + A Automatic Zoom Write T, C, or Z in the boxes. You do not need to show your work. b) Find the support forces at A and B. Write your answers as vectors. F₁ F Ę₂ F3 c) Use the Method of Sections to find the three unknown forces F₁, F2 and F3. Show all your work and follow the recipe taught in class. Draw a diagram of the section you are studying. Clearly indicate which equilibrium equations you are using. 150N Lx X Z (out of page) "B