2, ecuaciones simultaneas
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This document discusses resolving simultaneous equations that contain unknown currents (I1, I2, I3) by setting them equal to variables (X, Y, Z). Two initial equations are given relating the currents. The equations are then ordered and solved for the variables, providing the solutions X=1.2, Y=0.6, Z=0.6, which also give the current values. Another method for solving is mentioned but not described.
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Engr 213 midterm 2b sol 2009
1) The Wronskian of three functions is evaluated to show they are linearly independent on the interval (1, ∞).
2) The general solution to a nonhomogeneous differential equation is found using the method of undetermined coefficients and applying initial conditions.
3) The method of variation of parameters is used to find a particular solution and the general solution to a nonhomogeneous differential equation.
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The document discusses various rules for calculating derivatives:
1) The power rule states that the derivative of x^n is nx^{n-1}. For example, the derivative of x^3 is 3x^2.
2) The product rule states that the derivative of u*v is u'v + u*v'.
3) Trigonometric derivatives have their own formulas: the derivative of sin(x) is cos(x) and the derivative of cos(x) is -sin(x).
4) The chain rule is used when there is a function inside a parenthesis, radical, or denominator. It involves taking the derivative of the inside function first.
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Engr 213 midterm 2a sol 2009
(1) The Wronskian of three functions is equal to 0, showing they are linearly dependent on the interval (0,∞).
(2) The general solution to a nonhomogeneous differential equation with given initial conditions is y(x) = 2excosx - 3exsinx + x.
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Engr 213 midterm 2b sol 2009
1) The Wronskian of three functions is evaluated to show they are linearly independent on the interval (1, ∞).
2) The general solution to a nonhomogeneous differential equation is found using the method of undetermined coefficients and applying initial conditions.
3) The method of variation of parameters is used to find a particular solution and the general solution to a nonhomogeneous differential equation.
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1) The document contains 3 problems and a bonus problem from an applied ordinary differential equations exam involving solving differential equations.
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1. The document describes an investigation of infinite sequences and calculating the sum of the first n terms as n approaches infinity.
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1) The document contains an exam with 4 problems related to ordinary differential equations.
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3) The second problem involves solving an initial value problem using the method of undetermined coefficients, resulting in a particular solution added to the general solution.
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This document contains a 9 question final exam for an applied ordinary differential equations engineering course. The questions cover a range of topics including: finding general and particular solutions to 1st and 2nd order differential equations using various methods; solving initial value problems; solving systems of differential equations; power series solutions; and modeling an LRC circuit with a differential equation. Students are given 3 hours to complete the exam worth a total of 100 points.
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1. The document contains 10 problems involving exact differential equations, 10 problems involving homogeneous differential equations, and 10 other groups of problems involving various types of differential equations.
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1) The document contains 3 problems and a bonus problem from an applied ordinary differential equations exam involving solving differential equations.
2) Problem 1 involves solving the differential equation y − 2y + y = ex ln x, Problem 2 finds a second solution to the equation 2x2y + 3xy − y = 0, and Problem 3 solves the equation y + 4y = −x sin 2x.
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1) The document contains an exam with 4 problems related to ordinary differential equations.
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4) The third problem uses the method of variation of parameters to solve a non-homogeneous differential equation.
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1. The document describes an investigation of infinite sequences and calculating the sum of the first n terms as n approaches infinity.
2. The analysis shows that as n increases, the sum approaches the value of the parameter a, regardless of the values of a and x. However, larger values of a and x cause the sum to converge more slowly.
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2) The first problem involves solving a homogeneous Cauchy-Euler equation and results in a general solution involving exponential terms.
3) The second problem involves solving an initial value problem using the method of undetermined coefficients, resulting in a particular solution added to the general solution.
4) The third problem uses the method of variation of parameters to solve a non-homogeneous differential equation involving trigonometric functions.
5) The fourth problem involves applying an equation of motion to a physical system of a mass on a spring to determine the velocity at a specific time.
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2) It solves equations with fractions, rational expressions, and parentheses, like 3x/5 - 2 = 5x/1 - 1, finding the value of x in each case.
3) It identifies cases where no solution exists, like an equation that results in 0 ≠ 2, described as an "incompatibility."
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2) It provides the example of using differential equations to model the behavior of charge in a circuit over time, solving the equation for the particular circuit components.
3) Mathematics allows the modeling of observed physical phenomena and provides solutions like oscillating charge and current patterns in circuits that can be applied in areas like radio tuning and metal detectors.
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2) It provides the example of using differential equations to model the behavior of charge in a circuit over time, solving the equation for the specific circuit components.
3) Mathematics allows physics to model observations through certain tools, with circuits being an example of applying mathematics to describe physical systems and phenomena.
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This document contains solutions to problems from the final exam of an applied ordinary differential equations course. It includes:
1) The solution to a separable differential equation in implicit form.
2) Verifying that a given differential equation is exact, and finding its solution in implicit form.
3) Using a substitution to transform a differential equation into an exact form and finding its solution.
4) Finding the velocity as a function of time by solving an initial value problem.
5) Solving non-homogeneous linear differential equations with constant coefficients by using the method of undetermined coefficients.
6) Solving a non-homogeneous Cauchy-Euler equation using the method of variation of parameters.
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This document summarizes the derivatives of trigonometric functions. It states that the derivatives of sin(x) is cos(x) and the derivative of cos(x) is -sin(x). It then lists the derivatives of other trigonometric functions like tan(x), cot(x), sec(x), and csc(x). It notes that the derivatives of the "co-" functions are the negatives of the derivatives of their corresponding functions. The document also provides examples of using the product rule and quotient rule to take derivatives of trigonometric functions. It assigns problems from page 146 as homework.
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颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Data Driven Maintenance | UReason Webinar
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
Design and optimization of ion propulsion drone
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
AI for Legal Research with applications, tools
AI applications in legal research include rapid document analysis, case law review, and statute interpretation. AI-powered tools can sift through vast legal databases to find relevant precedents and citations, enhancing research accuracy and speed. They assist in legal writing by drafting and proofreading documents. Predictive analytics help foresee case outcomes based on historical data, aiding in strategic decision-making. AI also automates routine tasks like contract review and due diligence, freeing up lawyers to focus on complex legal issues. These applications make legal research more efficient, cost-effective, and accessible.
Object Oriented Analysis and Design - OOAD
This ppt gives detailed description of Object Oriented Analysis and design.
Applications of artificial Intelligence in Mechanical Engineering.pdf
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
SCALING OF MOS CIRCUITS m .pptx
this ppt explains about scaling parameters of the mosfet it is basically vlsi subject
Rainfall intensity duration frequency curve statistical analysis and modeling...
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
Comparative analysis between traditional aquaponics and reconstructed aquapon...
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
原版制作(Humboldt毕业证书)柏林大学毕业证学位证一模一样
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四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
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◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
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◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
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Software Engineering and Project Management - Software Testing + Agile Method...
Software Testing: A Strategic Approach to Software Testing, Strategic Issues, Test Strategies for Conventional Software, Test Strategies for Object -Oriented Software, Validation Testing, System Testing, The Art of Debugging.
Agile Methodology: Before Agile – Waterfall, Agile Development.
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2, ecuaciones simultaneas
- 1. RESOLUCION DE CIRCUITOS CON ECUACIONES SIMULTANEAS. DEL EJERCICIO VISTO: (1) 𝐼2 + 𝐼3 = 𝐼1 (2) 5𝐼1 + 10𝐼2 = 12𝐴 CADA ECUACION CONTIENE UNA INCOGNITA, POR LO QUE PODEMOS QUE SON LOS VALORES DE X, Y, Z DE UNA RESOLUCION DE ECUACIONES SIMULTANEAS.
- 2. SI ASUMIMOS: 𝐼1 = X 𝐼2 = Y 𝐼3 = Z ENTONCES: ECUACION 1. Y + Z = X ECUACION 2. 5x + 10y = 12 A ECUACION 3. 10z -5y = 3A ORDENAMOS PARA RESOLVER, CUIDANDO LA LEY DE SIGNOS. ECUACION 1. -X + Y + Z = 0 ECUACION 2. 5x + 10y +0 = 12 A ECUACION 3. 0 -5y + 10z = 3A RESPUESTAS: X= 1.2 Y= 0.6 Z= 0.6
- 3. EQUIVALENTE A DECIR: 𝐼1 = X = 1.2 𝐼2 = Y = 0.6 𝐼3 = Z = 0.6 OTRA FORMA DE RESOLVER