In some fiber optic communication, the light emerging from the laser amplifier fiber is much brighter than it was when it entered. one interesting aspect of the light emerging from the laser amplifier fiber is that ithas the same color as the light entering the amplifier fiber.
What is Fiber amplifiers?
Fiber amplifiers are optical amplifiers that use optical fibers for laser gain. A glass fiber do*ed with rare earth ions such as erbium (EDFA = erbium-do*ed fiber amplifier), neodymium, ytterbium (YDFA), praseodymium, or thulium is typically used as the gain medium.
This active dopant is pumped (charged) with light from a laser, such as a fiber-coupled diode laser; in almost all cases, the pump light travels through the fiber core with the signal to be amplified. Raman amplifiers are a type of fiber amplifier that is not commonly used.
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what is the output frequency of a three-stage binary counter with an input clock frequency of 80 khz?
If a clock frequency is utilized, the lowest output frequency that may be used with a cascaded counter is: 10 kHz will be the output frequency that is lowest.
What is the counter's output frequency?The output frequency for a binary counter or M mod counter, depending on whether it is synchronous or asynchronous, is f/2n, where f is the input frequency and n is the number of flip-flops (but only if the duty cycle is 50%).In digital logic and computing, a counter is an object that keeps track of (and occasionally shows) the frequency of a given event or process, typically in relation to a clock.The type that is used the most frequently is a sequential digital logic circuit, which has a clock-input line and many output lines.Two states are counted by a binary three-stage counter. As a result, the output frequency is 80/23 = 80/8 = 10 khz.What is the output frequency of a 4-bit binary counter for a 160 MHz input clock? The output of a 4-bit counter's final flip-flop is equal to the input clock/16.This means that 10MHz, or 160MHz/16, is the output frequency.To Learn more About lowest output frequency refer to:
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Consider a variation of the fully developed Couette flow problem of Prob. 7-52-flow between two infinite parallel plates separated by distance
h
, with the top plate moving at speed
V top
and the bottom plate moving at speed
V bottom
as illustrated in Fig. P7-107. The flow is steady, incompressible, and two-dimensional in the
xy
-plane. Generate a dimensionless relationship for the
x
-component of fluid velocity
u
as a function of fluid viscosity
μ
, plate speeds
V top
and
V bottom
, distance
h
, fluid density
rho
, and distance
y
. (Hint: Think carefully about the list of parameters before rushing into the algebra.) FIGURE P7-107
List of parameters before diving headfirst into algebra flow between two infinite parallel plates that are spaced apart derived from newtons law of viscosity that value is 26.4 N/m².
Acoording to newtons law of viscosity
T=μdu/dy
T=μv/y
y is 50 mm = 0.05 m,v=3m/s,μ =0.44 kg /ms
T=0.44*3/0.05=26.4 N/m²
Since its molecular structure causes very little friction when it is in motion, a fluid with low viscosity flows effortlessly. Viscosity is the term used to describe the degree of motion resistance found in most fluids. When fluid layers move relative to one another, viscosity develops. It measures flow resistance that results from internal friction between the fluid layers as they pass one another during fluid flow.
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Question 8: Several forces are applied to the pipe assembly shown. If the inner and outer diameters of the pipe are equal to 1.50-in. and 1.75-in. respectively, determine: a-The state of the stress at point H on the top outside surface of the pipe. Show the results on a volume element. b-The principal stresses and maximum shear stress. c-The principal planes and plane of maximum shear. 6 in. a: 12 in -- 1,982-psi = 0.0 T= 670-psi 10 in. b: 0 = 205-psi =-2187-psi -- 1196-psi in-plane o min τ max 30 lb 5011 Sin. c c: = -17° CW or 73° CCW = +28° CCW Sin. E 50 lb 30 lb
The difference between the primary stresses divided by one-half is the maximum shear stress. It should be noticed that two angles between 0° and 360° are produced by the primary planes equation, 2p.
Principal stress axes are perpendicular to zero shear stress planes. Orthogonal primary axes are present. The greatest shear stress is 45 degrees away from the main stress vector. The difference between the primary stresses divided by one is the maximum shear stress. Principal stresses are the highest and lowest normal stress values on a plane that is rotated through an angle and does not experience shear stress. Primary Plane On that plane, the main stresses are present, and there is no shear stress.
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The material review board at a circuit board manufacturer found that 15 percent of the diodes on the boards were inserted with the wrong polarity. the best corrective action of the following choices is
create a poka-yoke key so the diodes cannot be inserted backwards
The best corrective action of the following choices is create a poka-yoke key so the diodes cannot be inserted backwards.
What is poka-yoke concept?Poka-Yoke makes ensuring the proper circumstances are present before a process step is carried out, preventing errors from developing in the first place. When this isn't possible, Poka-Yoke plays the role of a detective, finding and fixing problems as soon as they arise.Any mechanism in a Lean manufacturing process that aids in error prevention is known as a poka-yoke. Its goal is to eliminate product flaws through the prevention, correction, or awareness of human errors as they happen.Utilizing Poka-Yoke has the advantage of facilitating first-time accuracy in people and processes, which eliminates the possibility of errors. By removing flaws, these methods can greatly raise the quality and dependability of processes and goods. This method of manufacturing blends flawlessly with the continuous improvement culture that is a key component of lean management.To learn more about poka-yoke refer :
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branch-circuit conductors to the farthest locations in residence may have to be oversized, compare to the over current protective device in order to compensate for ______.
a) voltage drop
b) expansion and contraction
c) frequency
d) future use
The NEC advises that the maximum voltage drop on the feeder or branch circuit shouldn't be more than 3% and that the maximum voltage drop on both the feeder and branch circuit shouldn't be more than 5%.
Branch Conductors are the Circuits that supply electricity to the Loads or Devices being powered by the Electrical Service Panel via the circuit breakers located in the Service Panel. Table 310-13 of the National Electric Code provides a list of the numerous insulation options. (2) The smallest conductor size authorized in residential wiring is 14 A WG, according to NEC 210-19(c). The smallest conductor size allowed for building wiring by the NEC is 14 AWG [310.5]. However, 12 AWG must be utilized as the smallest branch circuit wire per municipal codes and many industrial buildings.
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a radiograph of a pa oblique (scapular y) lateral position reveals that the scapula is slightly rotated (the vertebral and axillary borders are not superimposed). the axillary border of the scapula is determined to be more lateral compared with the vertebral border. which of the following modifications should be made for the repeat exposure?
Nothing (acceptable image because the greater tubercle is in profile) (acceptable image because the greater tubercle is in profile.)
In anatomy, a tubercle is any spherical nodule, tiny elevation, or warty protrusion found on the surface or internal organs of a plant or an animal. The word tubercle is derived from the Latin word tuberculum, which means "lump." A tubercle is typically a projection that resembles a wart, however depending on the family of plants or animals it is used to describe, it might have a slightly different connotation.
It refers to a spherical nodule, tiny prominence, or warty protrusion seen on the lip in the case of some orchids and cacti. They go by the name podaria as well (singular podarium). It is used to describe the wart-like excrescences that can be found on the roots of some members of the pea family.
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consider the loading shown. note: this is a multi-part question. once an answer is submitted, you will be unable to return to this part. identify the equation of the elastic curve for the cantilever beam ab.
The following techniques can be used to determine the equation for the elastic curve of a beam.
The first and second derivatives of the function that represents the curve in terms of the Cartesian coordinates x and y are dydx and d2ydx2, respectively. Assuming that the longitudinal stresses on the fibers are within the elastic limit, the elastic curve of a beam is the curve formed by the intersection of the neutral surface with the side of the beam. The Bending Moment Equation's double integral is taken in order to do the fundamental computation. There are formulas for both cantilever beams and beams that are simply supported. These are the calculations: Leaning beam: Cantilever beam deflection is calculated using the formula (WL**3**)/. (3EI).
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Calculate the buoyancy force acting on a partially immersed boat (V=5.0 m³). The density of water is 1000 kg/m³. Express your answer in both SI and U.S. Customary units.
CALCULATION :
SI units:
Buoyancy force = (Volume of water displaced) x (Density of water) x (Acceleration due to gravity)
Buoyancy force = (5.0 m³) x (1000 kg/m³) x (9.81 m/s²)
Buoyancy force = 49,050 N
U.S. Customary units:
Buoyancy force = (Volume of water displaced) x (Density of water) x (Acceleration due to gravity)
Buoyancy Force = (5.0 m³) x (62.4 lb/ft³) x (32.17 ft/s²)
Buoyancy Force = 11,230 lb
What is force ?
A force is anything that pushes or it pulls an object. The objects' interactions with one another are also what causes push and pull. Pressure can also be represented using terms like extend and compress.
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Which of the following are true regarding SNMP? (Select two.)
a. SNMPv2 requires authentication for the SNMP manager and agents to communicate with each other.
b. SNMPv2 implements encryption to obscure data during transmission.
c. SNMPv3 employs the encryption of packets to prevent unauthorized sources from snooping.
d. SNMPv2 implements message integrity verification to ensure that an SNMP packet has not been modified during transit.
d. SNMPv2c can be compromised because the community string for authentication is sent in clear text.
The encryption of packets is a technique used by SNMPv3 to stop eavesdropping by unauthorized sources. To obfuscate data during transmission, SNMPv2 employs encryption.
What purposes does SNMP serve?A networking protocol called Simple Network Management Protocol (SNMP) is used in Internet Protocol networks to manage and keep track of network-connected devices.An Internet Standard protocol called Simple Network Management Protocol is used to gather, organize, and modify data about managed devices over IP networks in order to alter device behavior.Effective switch management still frequently incorporates SNMP monitoring, which is still extensively supported. Additionally, SNMP alternatives might not be available for devices like UPSes, PDUs, printers, and IP cameras.To learn more about Simple Network Management Protocol refer to:
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nolan is considering the use of several different types of alternate processing facility for his organization's data center. which one of the following alternative processing sites takes the longest time to activate but has the lowest cost to implement?
Since all hardware, software, and data must be loaded at the new site, a cold site is the least expensive choice, but it also has the longest switchover time.
Virtualization pioneer VMware offers DR through its vSphere Replication and Site Recovery Manager products, among others. The most crucial element in company continuity and catastrophe recovery planning is employee safety. A DRP's goal is to make sure that an organization is prepared to respond to a disaster or other event that affects information systems while minimizing the impact on daily operations. A backup location known as a "cold site" has little to no hardware installed.
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Draw a circuit that computes the function described by the input/output table. You may want to use the laws of Boolean algebra to simplify your Boolean expression before you draw the circuit. x y f(x,y) (a) 0 x y z f(x y,z) 0 1 0 0 (b) 0 1 0 10 0 1 0 1 0 0
B is a non-empty set, + and. are binary operations in B,'is a unary operation in B, and 0 and 1 are special elements of B. This is known as a Boolean Algebra.
A Boolean algebra is a mathematical construction with the notation (B,+,., ', 0,1) where B is a non-empty set, + and. are binary operations in B,'is a unary operation in B, and 0 and 1 are special elements of B,
such that:
a) + and. are communative: for all x and y in B,
b) x+y=y+x, and x.y=y.
c) Both x.(y+z) and x+(y.z) are equal to (x+y).(x+z).
d) Identity laws: 0+x=x+0=x for any x in B and 1.x=x.1=x
e) Complementation laws: for all x in B, x+x'=1 and x.x'=0.
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The following tabulated data were gathered from a series of Charpy impact tests on a tempered 4340 steel alloy. Temperature (°C) 0 25 50 75 100 113 125 150 175 200 Impact Energy (J) 105 104 103 97 63 40 34 28 25 24 (a) Plot the data as impact energy versus temperature. (Hint: use engineering paper for the graph) (b) Determine a ductile-to-brittle transition temperature as the temperature corresponding to the average of the maximum and minimum impact energies. (c) Determine a ductile-to-brittle transition temperature as the temperature at which the impact energy is 50J
The temperature corresponding to the average of the maximum and minimum impact energies is 65 J for the ductile-to-brittle transition temperature.
What causes ductile to brittle transition?Some metals that are ductile at room temperature become brittle at low temperatures. This is referred to as a ductile-to-brittle transition. The ductile to brittle transition temperature is strongly influenced by the metal's composition. Steel is the most common metal that exhibits this behaviour.Brittle materials fracture with little elastic deformation and no significant plastic deformation when subjected to stress.Ductility is a mechanical property that is commonly defined as a material's ability to draw. In materials science, ductility is defined as a material's ability to withstand plastic deformation under tensile stress before failing.Average = 124J + 6J divided by 2 = 65J
According to this criterion, the ductile-to-brittle transition temperature is around -105°C, as indicated on the plot by one set of dashed lines.
A ductile to brittle transition temperature is defined as the temperature at which the impact energy is 80J. Also, as shown by the other set of dashed lines on the plot, the ductile-to-brittle transition temperature for an impact energy of 80 J is around -95°C.
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Match the standards of ISO 9000 with the respective industry-specific interpretations of ISO 9000:
1. TickIT —> Information technology industry
2. AS9000 —> Aerospace manufactures
3. ISO/ TS 16949 —>American and European automotive manufacturers
4. TL 9000 —> Telecom consortiums
5. ISO 13485 —> Medical industry
6. ISO/ IED 90003 —> Computer software
7. ISO/ TS 29001 —> Petroleum, petrochemical, and natural gas industries
A corporation can accomplish ongoing improvement with ISO 9000 while also ensuring that customers are satisfied and that regulations are met. It need to be regarded as the foundational stage or level of a quality system.
The ISO 9000 specifications and their corresponding industry-specific interpretations:
1. TickIT —> Sector of information technology
2. AS9000 — Manufacturers of aerospace
3. ISO/ TS 16949 —>Automotive manufacturers in the United States and Europe
4. Telecom consortiums (TL 9000)
5. The medical industry and ISO 13485
6. ISO/ IED 90003 — Software for computers
7. ISO/ TS 29001 —> Petrochemical, natural gas, and petroleum industries.
An effective way for businesses to document the components of their quality systems is by using ISO 9000, a set of international standards on quality management and quality assurance. They can be used by organizations of any size and are not exclusive to any one sector of the economy.
30 years of ISO 9000 resources for ISO 9000: ISO 9000 vs. 9001
An individual standard within the family of quality management standards known as ISO 9000 is ISO 9001. Another member of the ISO 9000 family of standards is the ISO 9000 particular standard. The foundations and terminology for quality management systems are laid out in this standard (QMS).
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TRUE/FALSE. One highly publicized form of social engineering is called post texting, which is a method of obtaining personal information under false pretenses.
Post-texting under false presenses is one well-known example of social engineering. False: This is a ruse.
What is engineering?
Applying math and science to solve issues is engineering. Engineers are the ones who translate scientific and inventive discoveries into practical applications. In engineering, science and math are used to address practical issues and create better environments for us all. The ability to put ideas into practice in a way that is both practical and cost-effective is what really sets engineers apart. What distinguishes engineers from other branches of science and mathematics is their capacity to transform abstract ideas into physical reality.
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a steady green light signal directed from the control tower to an aircraft in flight is a signal that the pilot. t/f
A steady green light signal directed from the control tower to an aircraft in flight is a signal that the pilot is cleared to land. A steady green light signal can also be meant by take off.
A steady green signal can be meant by “go.” A green arrow means you have a “protected” turning movement. If there is no green arrow, left and right turning traffic is “allowed”. If you are airborne, a steady green light is meant by a warning "clearance to land". It's pretty straight forward indeed. This suggests that upon your arrival the runway will be empty and you have been allowed to land there.
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for prob. p6.62 suppose the only pump available can deliver 80 hp to the fluid. what is the proper pipe size in inches to maintain the 3 ft'/s flow rate?
The proper pipe size in inches to maintain the 3 ft'/s flow rate is 7.3
Does pipe size affect flow rate?The cross sectional area of the pipe has an inverse relationship with flow velocity at any given flow rate. Higher flow rates result from smaller pipes; slower speeds result from larger pipes.
According to the continuity equation, we can increase the volume flow rate, or the velocity of the fluid passing through the pipe, by reducing the pipe's diameter. The fluid velocity is unaffected by the pipe's length, whether it is longer or shorter.
Larger pipes improve the water flow through the line, but they won't boost your water pressure if the water flow isn't sufficient. Although municipal water systems offer tremendous pressure, a larger line won't necessarily be beneficial.
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technician a says that anti-freeze is added to coolant to protect the coolant from freezing and lowers the boiling point. technician b says anti-freeze lowers the freeze point and raises the boiling point of coolant. who is correct?
Both Technician A and B are correct because While raising the coolant's boiling point, it lowers the coolant's freezing point.
In order to help control engine temperature, antifreeze is a tinted liquid that you add to your radiator along with water. Ethylene glycol, which lowers water's freezing point and increases its boiling point, is a key component of the substance. By doing this, you can avoid having your radiator's water freeze, boil, or evaporate. At 212°F, water begins to steam. The boiling point of conventional ethylene glycol antifreeze is raised to 223°F by combining it with water in a 50-50 ratio; this temperature is close to that of an engine. Antifreeze is an additive that lowers a liquid's freezing point that is made of water. A mixture of antifreeze is used to lower the freezing point for cold environments and raise the boiling point for higher coolant temperatures.
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which best describes machine language? select one. question 1 options: machine language is the most used language today. machine language instructions comprise only 1s and 0s of binary code. machine language is considered the easiest language to write. machine language relies heavily on go to statements question 2 (1 point) saved listen readspeaker webreader: listen which is a type of high level programming? select one.
Machine language, also known as machine code or object code, is a set of binary digits or bits that the computer reads and decodes. The only language that a computer can comprehend is machine language.
The fundamental language of computers is machine code, which is also referred to as machine language. It is made of digital binary integers, is read by the central processing unit (CPU) of the computer, and appears to be a very lengthy string of zeros and ones.
Machine language is a type of low-level programming language that can only be understood by machines and is composed of binary integers or bits. The CPU immediately executes the instructions, often known as machine code or object code.
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A single instrument that brings together all of the contract segments by reference and functions for the formal execution of the contract. Agreement Contract Clauses Progress Payments Retainage Question 58 (1 point) Pick the answer that best fits the below description Nontechnical provisions Agreement Contract Clauses Progress Payments Retainage Question 59 (1 point) Pick the answer that best fits the below description. Periodic cost reimbursements Agreement Contract Clauses Progress Payments Retainage
The answer that best fits the description is Progress Payments.
Progress payments are periodic cost reimbursements made to the contractor by the owner as a part of the contract agreement. They are usually made in intervals specified in the contract and are based on the completion of certain milestones or the delivery of certain deliverables.
Progress payments are payments made by a buyer to a seller at predetermined stages of construction or another project. Progress payments are usually made after a certain portion of the project is completed. They provide the seller with working capital to finance the project, while also providing the buyer with the assurance that the project is progressing as planned.
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One hundred units of coal energy are converted to electricity, which is then used to power an incandescent light bulb that produces 1.2 units of light energy. This results in a 1.2% ________.
energy end-use efficiency
One hundred units of coal energy are converted to electricity, which is then used to power an incandescent light bulb that produces 1.2 units of light energy. This results in a 1.2% energy end-use efficiency.
The relevance and advantages of taking energy end-use efficiency into account when making energy economic decisions are covered in this article, which was commissioned by the InterAcademy Council. The idea of energy end-use efficiency is to deliver more desired services for each unit of energy spent. Amory Lovins asserts that improving energy end-use efficiency is typically the most effective, cost-effective, environmentally friendly, and underutilized method of delivering energy services.
Making engineering choices based on energy end-use efficiency enables systems to use energy more efficiently along energy conversion chains, allowing for more work to be done with it. Adopting energy end-use efficiency has multiple advantages, according to this paper, including better services (comfortable buildings with more eye-catching lighting), a stronger position in the world's fuel markets, and the integration of efficiency with supply.
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technician a says that a common rail engine can vary the injection pressure, timing, and injection rate shape for each injector. technician b says that the injection pressure is the same for all injectors in common rail engines, and injectors can perform multiple injection events during each combustion cycle. who is correct?
Technician a is correct because According to him, a common rail engine has the ability to change the injection pressure, timing, and rate shape for each injector.
An alternative to low-pressure fuel pumps feeding unit injectors is a direct fuel injection system called common rail engine direct fuel injection, which is designed on high-pressure fuel rail feeding solenoid valves. The rail functions as a fuel accumulator to keep the pressure in the engine's fuel system roughly constant at all fuelling rates. Through high pressure pipes, fuel is delivered from the rail to the injectors. Each solenoid valve within an injector is sequentially activated by current pulses produced by the ECU. Commercial common rail systems employ radial, unit, and in-line pumps. High pressure pump designs are changing to improve the fuel injection system's efficiency and enable precise rail pressure management. The pressure in the common rail can be controlled in a number of ways.
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The material review board at a circuit board manufacturer found that 15 percent of the diodes on the boards were inserted with the wrong polarity. the best corrective action of the following choices is
create a poka-yoke key so the diodes cannot be inserted backwards
The best corrective action of the following choices is create a poka-yoke key so the diodes cannot be inserted backwards.
What is poka-yoke technique ?Poka-Yoke makes ensuring the proper circumstances are present before a process step is carried out, avoiding errors from developing in the first place. When this isn't feasible, Poka-Yoke plays the role of a detective, finding and fixing problems as soon as they arise.The three primary forms of poka-yoke used in manufacturing for quality assurance are contact techniques, fixed-value methods, and motion-step methods. Each one can be used as a warning or a control technique. Sensing devices are used in contact techniques to determine if a product makes touch with a gadget.equipment used in the home, such as microwaves, washing machines, and dishwashers. The doors of many home appliances, including microwaves, washers, dryers, and dishwashers, contain safety features that prohibit them from operating when the door is open.Learn more about poka-yoke technique refer to :
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A large number of compromised computers are infected with malware that allows an attacker (herder) to control them to spread email spam and launch denial-of-service attacks.
Which of the following dose this security threat describe?
The dose of this security threat describes is Zombie/botnet. The correct option is d.
What is a Zombie/botnet?A "zombie" or "bot" is a compromised computer under the control of an attacker, who frequently manages a botnet of other compromised devices.
A bot, short for "robot," is a sort of software application or script that executes automatic tasks when given a command. Malicious bots carry out malicious actions that allow an attacker to remotely manipulate an afflicted computer. These infected machines may be referred to as zombies once infected.
Therefore, the correct option is d, Zombie/botnet.
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The question is incomplete. Your most probably complete question is given below:
Phishing
Man-in-the-middle
Spoofing
Zombie/botnet
At temperatures near room temperature, the temperature dependence of the conductivity for intrinsic germanium is found to equal σ = 5= CT-3/2 exp (-Eg/2kT) where C is a temperature-independent constant and T is in Kelvins. Using Equation, calculate the intrinsic electrical conductivity of germanium at 140°C. Assume Eg=0. 67 eV and room-temperature (298 K) conductivity o=2. 2 (12-m)-1. 73. 595 (12-m)-1
The intrinsic electrical conductivity of germanium at 140°C, σ = 838.268 Ω/m²
What is germanium?In the periodic table's Group 14 (IVa), germanium (Ge), a silvery-gray metalloid with properties intermediate between those of metals and nonmetals, is a chemical element that lies between silicon and tin.
German chemist Clemens Winkler made the discovery of germanium in 1886; however, Russian chemist Dmitry Ivanovich Mendeleyev had predicted the existence, characteristics, and position of germanium in the periodic table back in 1871 under the name ekasilicon.
(Winkler gave the element the name germanium, a translation of the Latin word Germania, meaning "Germany"). The value of germanium's properties as a semiconductor in electronics was not realized until after 1945, at which point the metal's economic significance began to grow.
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Adding deductive reasoning to traditional DBMS functions is a benefit of integrating an expert system into the database component of a(n) _____
Adding deductive reasoning to traditional DBMS functions is a benefit of integrating an expert system into the database component of a(n) DSS (Decision Support System)
What is DBMS?
A computer software known as an expert system use artificial intelligence (AI) techniques to mimic the decision-making and actions of a person or group of people who have knowledge and experience in a certain field. Expert systems are often designed to support human experts rather than to replace them.
Recognizing distinct consumer demographics, such as devoted, new, or prospective customers. Prospects are categorized based on their demographics and other possible demographics, such as potential hobbies. gives significant accounts top priority. tailors marketing messaging to certain targets.
Many information systems strive to convert data into information so that knowledge may be created that can be applied to making decisions.
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Water at P1= 20 bar, T1= 400°C enter a turbine operating at teady tate and exit at P2= 1. 5 bar, T2= 240°C. The water ma flow rate i 4000 kg/hour. Stray heat tranfer and kinetic and potential energy effect are negligible. Determine the power produced by the turbine, in kW, and the rate of entropy production in the turbine, in kW/K
The Quality value is not 98%
How to calculate the quality value ?Given ,
inlet pressure p1 = 20 bar
outlet pressure p2 = 1.5 bar
temperature t1 = 400°C
as assume here assume isentropic process so equation that states stray heat transfer is negligible so Q = 0 and S1 = S2
S1 = Sf2 + x Sfg2 ............ ............1
here x is quantity of steam and we get all other value by steam table
so at pressure 20 bar and 400°C and at pressure 1.5 bar
S1 = 7.127 kJ/kg K and Sf2 = 1.4336 kJ/kg K
and Sfg2 = 5.7898 kJ/kg K
so put all value in equation 1 we get x that is
x = 7.127 - 1.4336/5.7898
x = 0.9833
x = 98.33 %
so here we can say quality value is not 98%
The complete question is : Water at 20 bar, 400°C enters a turbine operating at steady state and exits at 1.5 bar. Stray heat transfer and kinetic and potential energy effects are negligible. A hard-to-read data sheet indicates that the quality at the turbine exit is 98%. Can this quality value be correct? If no, explain. If yes, determine the power developed by the turbine, in kJ per kg of water flowing.
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Suppose a Vestas 112-m wind turbine rated at 3.075 MW is installed at a site having Rayleigh wind statistics with an average wind speed of 8 m/s at the hub height. The cut-out speed VF is 25 m/s.
Estimate the annual electricity generation.
How many hours per year will the turbine be shutdown due to excessive winds
The annual electricity generation of the year, E = 8755.88 MWh/year.
Hours per year the turbine will be shutdown due to excessive winds, T = 4.0883 hours/year
What is electricity?Electricity is a group of physical phenomena that are connected to the presence and movement of matter that possesses an electric charge. In accordance with Maxwell's equations, magnetism and electricity are both components of the phenomenon known as electromagnetism.
Electricity is a factor in many everyday occurrences, including lightning, static electricity, electric heating, electric discharges, and a host of others.
An electric field is created when there is a charge present, which could be positive or negative. Electric current, which also creates a magnetic field, is created when electric charges move. An electric field that is not zero will exert a force on a charge when it is placed there.
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You are asked to design a completely mixed activated sludge treatment plant with biomass recycle for a town with population of 85,000. The influent flow rate is 95 gallon/capita.day, influent BOD5 is 205 mg/L and the primary clarifier removes 34% of the influent BOD5. The discharge standard for BOD5 is 10 mg/L. The aeration tank MLSS is 4,000 mg/L, of which 72% is volatile (remember bugs are measured as MLVSS). The treatability study revealed the following kinetic coefficients. k= 4.6/day Ks= 65 mg BOD5/L Y= 0.62 mg VSS/mg BOD5 μmax= 2.8/day kd= 0.04 g VSS/g VSS.day Determine:
a. Required solids and hydraulic retention times.
b. Aeration basin volume.
c. Amount of excess sludge generated daily. d. Daily required amount of oxygen and air as volume and mass(BOD5/BODLis0.68)
e. Food to microorganism sratio.
f. Volumetric organic loading rate.
It has been investigated to remove the organic debris that naturally exists in coffee manufacturing wastewater using chemical coagulation-flocculation and advanced oxidation procedures (AOP).
It has been investigated to remove the organic debris that naturally exists in coffee manufacturing wastewater using chemical coagulation-flocculation and advanced oxidation procedures (AOP). Under acidic circumstances, the efficacy of removing natural organic matter with commercial flocculants, UV/H2O2, UV/O3, and UV/H2O2/O3 procedures was assessed. To maximize the treatment effectiveness of the coffee wastewater, several operational parameters were investigated for each of these procedures.
Low total suspended particles and a high chemical oxygen demand (COD) are characteristics of coffee wastewater. Reductions in COD, color, and turbidity were used to evaluate the effectiveness of the coagulation-flocculation and photodegradation methods used to treat coffee effluent. It was discovered that chemical coagulation-flocculation treatment of the coffee wastewater could achieve a 67% COD reduction.
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9.11 viscous fluid flows past a flat plate such that theboundary layer thickness at a distance 1.3 m from the leading edgeis 12 mm. determine the boundary layer thickness at distances of0.20, 2.0, and 20 m from the leading edge. assume laminar flow. (b)if the upstream velocity of the flow in part (a) is u 1.5 m/s,determine the kinematic viscosity of the fluid.
A) The boundary layer thickness from the leading edge at distances of 0.20m = 0.004706
2.0m = 0.014884
20m = 0.04706
B) If the upstream velocity of the flow in part (a) is u 1.5 m/s, then the kinematic viscosity of the fluid at
At 0.20m, v = 6 × 10⁻⁷ m²/sec
At 2.0m, v = 6 × 10⁻⁶ m²/sec
At 20m, v = 6 × 10⁻⁵ m²/sec
What is kinematic viscosity?A fluid's internal resistance to flow when subjected to gravitational forces is measured by a property called kinematic viscosity. A calibrated viscometer at a tightly regulated temperature is used to measure the number of seconds needed for a fixed volume of fluid to move a known distance through a capillary.
Standard units are used to translate this value into square millimeters per second or centistokes (cSt). Only when the test's temperature is reported along with the viscosity, for instance 23 cSt at 40 degrees C, is the viscosity reporting considered valid.
Viscosity testing offers the highest degree of consistency and repeatability among all used oil analysis tests. The viscosity of the base oil, meanwhile, is the factor that is most important for efficient component lubrication.
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You just posted new photographs to Shutterfly, and the site asks you to review the metadata. Metadata includes the following information EXCEPT _____.
A. The date a photo was taken
B. The file size
C. The GPS location coordinates
D. The HTML coding
You just posted new photographs to Shutterfly, and the site asks you to review the metadata. Metadata includes the following information EXCEPT The HTML coding.
What is HTML coding?Hyper Text Markup Language is what HTML is. The preferred markup language for building Web pages is HTML. A Web page's structure is described in HTML. A number of elements make up HTML. The content's presentation in the browser is controlled by HTML elements.The term "HTML" stands for "Hypertext Markup Language." Specifically created for digital consumption, HTML files are text-only documents with highly interactive information. This implies that rather than being printed, they work best as an on-screen viewing file.The preferred markup language for Web pages is HTML. You may build your own website using HTML. HTML is simple to learn, and you'll like it.Learn more about HTML coding refer to :
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