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- Burnout Test | AxoTek
Evalúa tu nivel de agotamiento laboral con nuestro Test de Burnout profesional, identifica síntomas de estrés crónico, recibe una interpretación inmediata y descubre recursos para mejorar tu bienestar. Herramienta confiable, rápida y gratuita. Assess your level of job burnout with our professional Burnout Test, identify symptoms of chronic stress, receive an immediate interpretation, and discover resources to improve your well-being. A reliable, fast, and free tool. Burnout Test This is an interactive diagnostic tool that allows a person to assess their level of burnout in their work, personal life, and relationships with clients, using the validated methodology of the Copenhagen Burnout Inventory (CBI). Main Purpose The primary objective of this tool is to offer a quick and accurate self-assessment to detect signs of burnout in its initial or advanced stages. It is not a medical diagnosis, but rather a risk indicator that can motivate the person to seek professional support or make changes in their lifestyle and work. 1. Starting the Test Review the Welcome: Carefully read the instructions on the initial screen to understand the scope of the test. Select the Language: Use the drop-down menu in the upper right corner (next to the topic control) to choose between Spanish or English. Start: Click the "Start Test" button to begin. 2. Answering the Questions Honesty is Key: For accurate results, answer each question based on how you have felt lately (generally, within the last 4 weeks). Response Scale: Select the option that best describes how often you experience the situation described: Always / Very often (Maximum burnout score) Often Sometimes Rarely Never / Almost never (Minimum burnout score) Navigation: When you select an option, the system automatically moves to the next question. The progress bar and counter at the top will show you how many questions are left. Use the "Back" button if you need to review or change a previous answer. Completion: Once you answer the last question (19/19), the "Next" button will change to "View Results." The final screen will display your results on a scale of 0 to 100, where a higher score indicates a greater level of exhaustion. The larger the triangle (farther from the center), the greater the overall exhaustion and the risk of burnout. A text box will provide a general interpretation and a recommendation based on your highest scores (e.g., "Moderate Stress" or "High Risk"). Scores < 50: Generally, a healthy state with manageable levels of exhaustion. Scores ≥ 50: Suggest a moderate level of stress and exhaustion that requires attention (review rest habits and work boundaries). Scores ≥ 75: Indicate a high level of exhaustion that may represent a significant risk of burnout. Seeking a mental health professional is recommended. What is occupational burnout syndrome? Burnout Syndrome, also known as Occupational Burnout Syndrome or Burnout Syndrome , has become a crucial concern in the modern workplace. It is not simply "being stressed" or "tired," but a state of prolonged physical, emotional, and mental exhaustion that has profound consequences for health, productivity, and overall well-being. In 2019, the World Health Organization (WHO) officially recognized Burnout as an occupational phenomenon, including it in the International Classification of Diseases (ICD-11) as a syndrome resulting from chronic workplace stress that has not been successfully managed. Burnout does not arise from individual weakness, but from the chronic interaction between the worker and a dysfunctional work environment. The main risk factors are grouped as follows: Organizational Factors Excessive Workload: Job demands that chronically exceed the employee's time and capacity. Lack of Control: Lack of autonomy or influence over the work performed or the decision-making process. Organizational Injustice: Perception of inequity in compensation, promotions, performance evaluation, or workload distribution. Conflicting Values: Conflict between the employee's personal values and the organization's values or ethics (e.g., being forced to sell unethical products). Lack of Social Support: Absence of supportive relationships with colleagues or supervisors. Role Ambiguity/Conflict: Unclear responsibilities or receiving contradictory orders. Personal Factors Although work-related factors are the primary triggers, certain personal characteristics can increase vulnerability: Extreme perfectionism. High need for control. Type A personality pattern (competitive, impatient). Low self-esteem. Difficulty delegating or setting boundaries. Detecting and treating burnout is fundamental, as its consequences extend far beyond the workplace. Consequences for the Individual Physical Health: Increased risk of cardiovascular disease, sleep disorders, chronic headaches and muscle pain, and a weakened immune system. Mental Health: Depression (burnout is a significant risk factor), anxiety, substance abuse, and suicidal thoughts. Personal Relationships: Deterioration of family and romantic relationships due to irritability, cynicism, and lack of energy. Psychological treatment is essential, generally focused on Cognitive Behavioral Therapy (CBT) or mindfulness-based therapies. Cognitive Restructuring: Identify and change perfectionistic or irrational beliefs about one's own responsibility and control. Setting Boundaries: Learn to say "no," delegate tasks, and disconnect digitally from work. Sleep and Rest Hygiene: Prioritize adequate sleep and promote active rest (exercise, hobbies). Developing Coping Skills: Implement stress management and relaxation techniques. Pharmacological Support: In severe cases where burnout has progressed to depression or clinical anxiety, the use of antidepressants or anxiolytics may be necessary, always under medical and psychiatric supervision. Remember: This is a self-assessment tool. If your scores are high and you feel your well-being is compromised, always consult a healthcare professional.
- Hojas de calculo | AxoTek
Aqui encontraras hojas calculo en excel con ejemplos de temas de ingenieria y generales. Spreadsheets In this section you will find Excel Spreadsheets to download completely free.
- AxoTek | Ingeniería, Metrología y Tecnología | Conversor de unidades
Axotek te ayuda en ingeniería y metrología, Generador de QR gratuito, Calculadoras, Hojas de calculo, documentos, conversores de unidades realizados por expertos en metrología, About Us and the World This world is full of problems, and one day we hope to solve them, but for now, we can do our part by solving problems that involve calculations. Let us help you speed up those everyday processes that involve calculations with information, data, and tools. "Calculus is the most powerful tool the human intellect has devised for exploring reality." — Bertrand Russell Learn more... Technological Synergy... Welcome! Discover and browse in-depth articles, how-to guides, tools, calculators, trend analysis, and tech product reviews, all created with the goal of keeping you up-to-date in the digital world. At Axotek, we're passionate about the world of technology and its power to transform the way we live, work, and connect. We're dedicated to providing high-quality content, tools and calculators, in-depth analysis, and how-to guides for science and technology enthusiasts. What sets us apart? We listen to our users, bringing relevant content that genuinely helps someone stay up-to-date, informed, or simplify their daily calculations. Discover Most visited: Local Gravity Calculator: Local gravity Local Gravity Calculator: Measure the Force of Attraction in Your LocationGravity, one of the fundamental forces of the universe, varies slightly depending on where you are on Earth. For those interested in understanding these variations and how they affect our environment, a local gravity calculator becomes an invaluable tool. Local gravity, measured in meters per second squared (m/s²), can be influenced by several factors, such as altitude, latitude. Water density calculator Water Density Water Density Calculator: Accuracy as a Function of Temperature The density of water, a fundamental property in both science and various practical applications, changes with temperature. For those who need to accurately measure this value based on specific conditions, a water density calculator based on temperature is an essential tool. Free QR Code Generator: Generate QR
- What is ModBus? | AxoTek
Discover what Modbus is, the most widely used industrial communication protocol, and how to easily integrate it with Excel to monitor and control devices from spreadsheets using VBA or external tools. What is MODBUS and a free Excel example Go to home From the noisy corners of an industrial plant to the quiet and minimalist interior of a laboratory, there is a language that is not heard, but speaks volumes: Modbus. It is the language of PLCs, sensors, and controllers, which communicate with each other to continue generating products, raw materials, medicines, etc. Modbus is an open industrial communication protocol developed in 1979 by Modicon (now Schneider Electric), designed to enable the transmission of information between electronic devices. Its main purpose is to facilitate communication between programmable logic controllers (PLCs), sensors, actuators, SCADA systems, and other industrial equipment. Its operating principle is one asks, one answers (Master-Slave). Key Features: Available Protocols: Modbus RTU (over RS-485): efficient and widely used in the field. Modbus ASCII: less common, more readable, but slower. Modbus TCP/IP: modern version for Ethernet networks. Common data types: Coils: Digital outputs. Discrete inputs: Digital inputs. Input registers: Read-only analog values. Holding registers: Variables that can be read or written. Standard functions: Reading and writing bits and words (16-bit registers). Diagnostics and basic remote control. But let's start from the beginning, and there's nothing more basic than knowing how it works and how it's classified: Modbus and the OSI pyramid The OSI (Open Systems Interconnection) pyramid is a reference model that divides network communication into seven layers, from the physical to the application: Physical layer Data link layer Network layer Transport layer Session layer Presentation layer Application layer Where is Modbus in the OSI pyramid? Modbus is a layer 7 protocol, the application layer. This means that Modbus defines the format and meaning of the messages sent and received to control and read industrial devices. However, Modbus does not define either the physical layer or the data link layer, which are responsible for the actual transmission of bits and managing communication in the physical medium. What does it mean that Modbus is not the physical layer? The physical layer refers to the physical transmission medium, for example: RS-232, RS-485, Ethernet, fiber optic cables, etc. Modbus can operate over different physical media. For example: Modbus RTU uses RS-485 or RS-232 as the physical layer and defines how to structure serial messages. Modbus TCP uses Ethernet (physical and data link layers) and TCP/IP (network and transport layers) to transmit its messages. Therefore, Modbus is not a standard for cables or electrical signals, but rather a protocol that sits on top of other layers so that devices can understand each other. This means that what truly defines the protocol is how it interprets the bits it reads from the different physical layers, which in their basic structure are as follows: In Modbus, data types can be divided into two main types: coils and registers. Coils can be defined as digital, as they can only be ON (1) or OFF (0). Some coils can represent inputs, while others can represent outputs. Registers are 16 bits (2 bytes) unsigned and can therefore have values from 0 to 65535 (0 to FFFF). However, they have limitations, such as not being able to represent negative numbers, floating-point numbers, or values with representations greater than 65535. However, some manufacturers use two or more registers to create floating-point or negative numbers. Knowing that it's a Master-Slave-based protocol, how many devices can be connected to the network? The answer is... it depends. The standard limit is up to 32 devices total (1 master + 31 slaves), without repeaters, but let's analyze each possible scenario: Modbus ASCII (RS-232 or RS-485) With RS-232 (point-to-point): Only 2 devices (1 master and 1 slave). RS-232 is not multidrop, so it doesn't allow more than two devices. With RS-485 (as RTU): Same logic as RTU: up to 32 without repeaters, up to 247 with them. Modbus RTU (RS-485) Up to 32 devices total (1 master + 31 slaves), without repeaters. With RS-485 repeaters: You can reach up to 247 slaves, which is the logical limit of the Modbus protocol (addresses 1 to 247), if you use repeaters to regenerate the signal and increase the electrical fan-out. Modbus TCP/IP (Ethernet) Theoretically: The protocol uses IP addresses, so the practical limit is enormous. Unit ID: typically 1 to 247 (for compatibility with serial slaves through gateways). Number of nodes on the Ethernet network: depends on IP addressing, switches, routers, and traffic. In practice: You can have hundreds or thousands of devices, as long as the Ethernet network supports it. What's important: there is only one master per Modbus TCP connection, but there can be many simultaneous clients if the server/slave supports it. Modbus is a communications protocol, not a network topology per se. However, the way a Modbus network is physically connected, especially Modbus RTU over RS-485, typically adopts a daisy chain topology. A daisy chain network is a form of connection in which each device is connected in series to the next, forming a single communication line: That is: Master ─── > Slave 1 ─── > Slave 2 ─── > Slave 3 ───> Terminator Why does Modbus RTU use daisy chain? RS-485 is a half-duplex multidrop bus, allowing up to 32 devices to be connected on a shared line (with repeaters, up to 256 or more). RS-485 has a single differential line (A/B), and all devices must be connected in parallel, respecting the bus impedance. To avoid reflections, terminating resistors are placed at the ends of the chain. Although the physical connection looks like a direct line, in practical terms it is implemented as a chain—hence the name daisy chain—where the cable "hops" from slave to slave. And what about Modbus TCP? Modbus TCP/IP does not use daisy chain because it is based on Ethernet, which typically uses star (with switches) or mesh (in redundant industrial networks) topologies. In short, Modbus is an open and reliable standard, whose longevity demonstrates its effectiveness. It is the right choice when a simple, interoperable, and well-documented solution is needed for industrial communications. It also has a faster response time than, for example, HART, another industrial digital communication protocol. This makes it suitable for simple control systems that do not respond as quickly as temperature. Example: Sometimes it's very complex to read an article and learn simply from the theory, so at Axotek we've prepared an example that can be very useful in certain cases, such as the following: Imagine you arrive at the plant and find a Coriolis mass flow meter, which you need to know the total flow rate. But, surprise, the device is blind, meaning it doesn't have a display, but it does have a Modbus RTU 485 communication port. There are several ways to solve the problem: 1. Purchase the software from the manufacturer; this can be expensive in certain cases. 2. Search the internet for Modbus reading software such as Modbus Slave or Modbus Poll, but these are usually very complex if you're a beginner. 3. Download the Excel file we have at Axotek and modify it to your needs. For this last case, which is what we'll focus on, we'll need two files: an Excel file and an ActiveX library (OCX). ActiveX libraries are typically paid and licensed, but we'll use the one developed by Modbus Tools. The free version allows you to run for 60 minutes, and then you just need to restart the connection to have another 60 minutes. You can also purchase the paid version for unlimited access. Step 1: Download the two files: Download Modbus Excel Download Mbaxp You can also download Mbaxp from the official Modbus Tool website: https://www.modbustools.com/download.html There are several considerations regarding the files: - This only works with Windows operating systems. - When downloading, you must unzip the *.zip file. - In the case of Excel, it is an *.xlsm file, so it is an Excel file with macros; you must have them enabled. Also, when downloading the file, you must unzip it and right-click. In the General tab, select Unlock at the bottom. *Don't worry, you can scan it with your antivirus before or after unzipping.* 2: Once you have the two files (Excel and Mbaxp) the first thing required is to install the ActiveX library, then you just have to double click on the MBAXPSetup.exe file (choose 32 Bit or 64 Bit) and follow the instructions, once finished the window will close and you will be ready to open Excel. 3: Once installed, we proceed to open Excel, make sure you have the developer tab active, if it is not active in Excel Options > Customize Ribbon > and select Developer: We will base this practical example on how to visualize a Micro Motion CMF series Coriolis flowmeter, which has a Modbus output port. For this project, we need to display the following variables: - Instantaneous flow - Density - Temperature - Mass totalization And, additionally, the ability to reset the totalization to create batches. 4: We will download the Modbus mapping manual from the manufacturer's website and identify the variables we want to read and write, as well as the type of message to be sent. Remember that when installing Mbaxp, Excel becomes the Master and the device becomes the Slave. In the case of reading the variables, the manual states that they are Floating-point register pairs , so we will have two registers, each of which is RO = Read-only: -Flow: 247/248 RO -Density: 249/250 RO -Temperature: 251/252 RO -Total Mass: 259/260 RO So we must enter this information in this section of Excel in the "Inicio" workbook: You may be wondering why, if the flow addresses are 247/248, according to the manual, the addresses 246 are entered in Excel with a length of 2 (second green column). Well, this is because there are two ways to document Modbus registers: the logical address and the Modbus address, but what is each one? The logical address is a base-1 address, and it is widely used in manuals because it is more understandable to start at address 1. The Modbus address is the one with a base of 0; the registers are indexed from zero. That is: Holding Register 1 → address 0 (in the protocol). Also, in many documents, Holding Registers can be presented as 40001, 40002, 40247, etc. However, in actual Modbus transmission, the initial 4 (which indicates "holding register") is omitted and the output starts from 0. If you enter 2 in the second column (green), it means you are going to read two consecutive registers 246/247. The manual mentions that a coil must be activated to reset the totalizer, so we must write a coil. The manual specifies that it is number 3. Therefore, following the previous reasoning, we will enter number 2 in the "Write Coil" section. 5: Once we have researched and entered the data we will read and write, it is important to physically connect the device to the computer. This typically requires the use of a USB to RS485 converter: It can be any brand, and some are quite inexpensive. You just need to correctly install the manufacturer's drivers on your PC and know which COM port it's associated with. You'll also need to make the physical connection to the device according to its user manual: Remember that RS485 adapters can be 2 or 3 wires (A, B, and ground). In this case, we will use only one of the 2 wires, A and B. The A of the RS485 adapter must be connected to the A of the measuring device, and the B to the B. The following must also be configured: Baud Rate: Stop Bit: Parity: Data Bit: Slave ID: These data are usually included in the user manual, unless they have been modified. In this case, you should request these values from the person in charge of the equipment. For the COM port, you can view it in the PC's Device Manager: For the test we will do with a Micro Motion flowmeter, it is configured in Excel as follows: Once everything is configured, all that's left is to press the "Start Comm" button and that's it. A window will open informing you that you have 60 minutes left to use Modbus. When you press "Accept," a window will open showing the communication status. If the message does not appear, it means that you have blocked the ActiveX settings, you just need to enable them in the Excel Trust Center: If everything was done correctly, a window will open in which you can see the variables sent by the slave device and that you entered through the Modbus registers. You can also reset the total by pressing the "Reset Total" button. And with this, you'll be able to view the variables you need in real time. If you want to customize Excel for your project, it's also very simple. Just go to the "Developer" tab and then "See code." By opening the Forms section and then in UserForm1, you can modify the interface to your liking to make it fit your project: Remember that you can adapt this for any sensor, meter, or device that communicates via Modbus. It doesn't replace the manufacturer's software. This is for applications that need to be adapted to your needs. If you need to read or write other types of Modbus registers, the Mbaxp installation folder contains the code guide to do so: We have more files and spreadsheets available: Download If you have any questions about a topic, ask us. Mail
- Contact | AxoTek
Contactanos para Quejas, Sugerencias y Felicitaciones. Get in touch Nombre Apellido Email Mensaje Send ¡Gracias por tu mensaje! Contact details Address San Juan del Rio, Querétaro, Mexico. E-mail axotek.me@outlook.com Phone +52 442 369 9652 Social networks
- Calculadoras | AxoTek
Calculadoras, Numero de Reynolds, Numero de Froude, Densidad del agua, Canal Parshall y otras herramientas. Calculators If you work with numbers, we can make your projects easier. We're always adding new calculators, and if you'd like to see us add one, feel free to share your requests with us via email or in the Contact section. HOME Calculators Water Density Calculator Local Gravity Calculator Process Calculator (4 to 20) mA Froude No. Calculator Speed of Sound in Water Calculator Strouhal No. Calculator Area-Velocity Calculator Parshall canal calculator Parshall Constants Calculator Reynolds Number Calculator Speed Profile Correction Simple Calculator Battery Capacity Calculator RTD Resistance to Temperature Calculator Dew point calculator Calculator distance between coordinates interpolation extrapolation calculator Natural gas density calculator LPG Vaporization and Entropy Tools QR code generator IPFNA Pattern Selection Coversores Pressure Unit Converter Temperature Unit Converter Flow Unit Converter Mass Flow Unit Converter Volume Unit Converter Mass Unit Converter Unit Converter Length Angle Unit Converter Spreadsheets Informative Topics Speed Profile Correction What is Metrology? What is Uncertainty? Reynolds Number in Flow File Share Privacy Policy About Us Contact Search results Request... Name* Last name* E-mail* Application* Request
- Interpolation and Extrapolation Calculator | AxoTek
Interactive interpolation and extrapolation calculator. Allows you to enter custom values, choose the number of decimal places, and define units. Visualize the results with dynamic graphs for better understanding. Calculadora interactiva de interpolación y extrapolación. Permite ingresar valores personalizados, elegir el número de decimales y definir unidades. Visualiza los resultados con gráficos dinámicos para una mejor comprensión. Interpolation and Extrapolation Calculator Visit our menu for more articles and information... Our online interpolation and extrapolation calculator is an accurate and easy-to-use tool designed for engineers, scientists, mathematicians, and anyone who needs to estimate values based on known data. It uses formulas based on classical linear and polynomial interpolation methods as well as extrapolation techniques to predict values outside the range of existing data. These methodologies have been widely used in a variety of disciplines, from physics and engineering to economics and data analysis. The calculator allows you to enter custom values, select the number of decimal places, and define units of measurement. It also offers an intuitive interface with dynamic graphics to visualize the results clearly and effectively. It is a versatile tool for professionals and students around the world. Optimize your calculations and improve your analysis with our online interpolation and extrapolation calculator! In almost every field of science and engineering, we work with data. However, we rarely have all the data we need. We measure the temperature at 8 AM and 10 AM, but what was the temperature at 9:15 AM? We obtain the efficiency of an engine at 2000 and 3000 RPM, but what will its efficiency be at 2450 RPM? This is where interpolation and extrapolation come into play: they are the mathematical tools that allow us to make intelligent estimates to predict unknown values from those we already know. The need to estimate values is not new. Its roots go back to antiquity, long before computers. Ancient Astronomy: Greek astronomers, such as Hipparchus (2nd century BC), and later Ptolemy, pioneered the use of interpolation. To predict the position of the planets and stars, they created trigonometric tables (such as tables of sines and cosines). These tables did not contain all possible angles, so they developed methods to estimate intermediate values, laying the foundation for interpolation. The Calculus Revolution: In the 17th century, with the development of calculus, interpolation took a giant leap forward. Isaac Newton developed his famous "divided difference interpolation formula," a very powerful method for fitting a polynomial (a smooth curve) that passed exactly through a set of known points. Almost at the same time, Joseph-Louis Lagrange developed an alternative polynomial method that is conceptually simpler. The Digital Age: With the advent of computers in the 20th century, interpolation became a cornerstone of numerical analysis. Methods that were previously tedious to calculate by hand could now be performed in seconds, allowing their use in fields as diverse as aircraft design, digital image processing, and financial modeling. How Does Linear Interpolation Work? (The Simplest Method) The most basic and common form of interpolation is linear. The idea is incredibly intuitive: if you have two known data points, you assume the relationship between them is a straight line and find your unknown value somewhere on that line. Let's imagine we have two known points: Point 1: (X1, Y1) Point 2: (X2, Y2) And we want to find the value of Y for a new point X that lies between X1 and X2. 1. Calculate the Slope (the steepness of the line): First, we calculate the slope (m) of the straight line joining our two points. The slope tells us how much Y changes for every unit that X changes. Once we have the slope, we can use the equation of the line to find our unknown Y. The formula is derived from the idea that the slope between the first point and our new point must be the same as the total slope. Substituting the slope formula, we obtain the complete equation for linear interpolation:
- Herramientas | AxoTek
Herramientas útiles dentro del campo de la ingenieria. Tools We have tools that can help you with your projects, as well as in your daily work. At Axotek, you're in touch with our users. If you need a tool you'd like to see online, please request it in our contact section or by email. HOME QR code generator IP Finder IPFNA Patron Selection Request... Name Last name E-mail Application Request
- Generador codigo QR | AxoTek
Genera tus codigos QR de forma gratuita Free QR code generator In a digital world moving at the speed of light, connecting the physical and online worlds instantly is more important than ever. QR codes have become the essential bridge to achieve this connection, and with our Advanced QR Code Generator, you have the power to create that bridge easily, quickly, and completely customizable. Our platform isn't just a tool; it's your creative partner to take your projects, businesses, and ideas to the next level. Forget about boring black and white QR codes. Here, you have complete control over the design so that every code you create is an extension of your brand. What Can You Create with Our Generator? We've designed an all-in-one solution to cover all your needs. Generate high-quality QR codes for a wide variety of actions: URL: Direct users to your website, landing page, portfolio, or any link. vCard: Allows new contacts to save your information (name, phone number, email, company) to their address book with a single scan. Plain Text: Display a message, a discount code, or any other important information. Email: Automatically open the user's email app with your predefined address, subject, and message. SMS: Make it easy for them to send a pre-written text message to your number. Wi-Fi: Share access to your Wi-Fi network securely without anyone having to enter complicated passwords. Geolocation: Display a specific location on Google Maps or the user's preferred mapping app. Why Choose Our QR Generator? Unlimited Customization: Choose colors, apply gradients, change the style of the dots and corners, and add your own logo in the center for flawless branding. Real-Time Generation: Don't wait any longer. Watch your QR code change and adapt instantly with every adjustment you make. High Resolution and Multiple Formats: Download your codes in PNG, JPEG, and SVG formats. The SVG (vector) format is perfect for high-quality printing at any size without losing sharpness. Free and Easy to Use: Our intuitive interface guides you through every step. You don't need technical knowledge to create a professional QR code in seconds. Privacy First: The entire QR code generation process is done directly in your browser. We don't store, view, or share your data. Your information is yours alone.
- Calculadora de Regresión Lineal y Polinomial
Calculadora de regresión lineal y polinómica. Ingresa datos, genera un gráfico de dispersión, calcula la ecuación y R². Descarga el gráfico y copia los resultados. Linear and Polynomial Regression Calculator Visit our menu for more articles and information... This interactive web tool lets you perform linear and polynomial regression analysis quickly and visually. Simply enter your datasets (X, Y), and the application will automatically generate a scatter plot. You can instantly calculate the best-fit trend line (linear or polynomial of various degrees), visualize it on the graph, and obtain the precise equation and coefficient of determination (R²). What is Regression? Regression (or Regression Analysis) is a powerful statistical tool used to model and analyze the relationship between two or more variables. Its main objective is to find the function that best fits a set of observed data, thus allowing us to predict future values or understand how a change in one variable impacts the others. In simple terms, if you have a collection of points on a graph (input data X and output Y), regression analysis plots the "best line" or "best curve" that describes that trend. Common Types Linear Regression: Looks for the simplest and most direct relationship between the variables (y = mx + c), represented by a straight line. Polynomial Regression: Uses a curve (a polynomial of degree 2, 3, 4, etc.) to describe more complex and nonlinear relationships between the data. Brief History The concept was formalized by the British polymath Sir Francis Galton in the late 19th century. Galton studied the relationship between the heights of parents and children and noted that extreme heights tended to "regress" toward the population mean in the next generation, hence the term "regression." Today, the technique is applied to any type of predictive relationship, regardless of its biological origin. Key Uses and Applications Regression analysis is fundamental in almost any field that requires prediction and modeling: Economics and Finance: Predicting stock or commodity prices. Estimating the impact of interest rates on consumer spending. Science and Technology: Engineering: Modeling the performance of materials under different temperature or pressure conditions. Data Science: Training machine learning models to predict continuous variables (such as temperature or energy consumption). Health and Biology: Determine the necessary medication dosage to achieve a specific effect. Predict the progression of a disease based on demographic factors. Marketing and Business: Estimate future sales based on the advertising budget. Analyze which factors (price, location, reviews) most influence the demand for a product. In short, if you need to answer the question: If I do X, what result will I get?, Regression Analysis is the ideal statistical tool. The linear regression formula is: Where: y: is the predicted value (dependent variable). x: is the input value (independent variable). m: is the slope of the line. b: is the y-intercept. The formula for polynomial regression of degree k: The optimal solution for the β coefficients is found using the Normal Equation, which minimizes the total squared error: Where: β: is the vector of coefficients (β0, β1,..., βk) that we are looking for. X: is the Design Matrix, which includes the X data raised to the powers x^0, x^1, x^2,..., x^k. y: is the vector of observed Y values. X^T: is the transpose of the design matrix. (X^T•X)^-1: is the inverse of the resulting matrix.
- Life Expectancy Calculator: Your Life in Weeks | AxoTek
Did you know that the average lifespan is 4,000 weeks? It's not magic, it's statistics. Visualize your life expectancy on a dot map and discover how your habits impact your time. ⏳ Calculate your projection here. Life Audit: How much time do you have available? Memento Mori: Time awareness is key to living fully. In our daily routines, we forget that time is not infinite. This tool from Axotek visualizes your life cycle in weeks, helping you understand the scale of your available time. Discover how your current habits project and define your statistical future. The Mathematics of Existence: Why Visualizing Your Time Changes Everything: The human brain has a fundamental design flaw: it's terrible at calculating long-term time. Evolutionarily, we're programmed to survive the "now," which leads us to suffer from hyperbolic discounting: we value immediate pleasure far more than future security. We live under the illusion that our time is a renewable and infinite resource, spending weeks with a carelessness we would never apply to our finances. However, the math is irrefutable: an average lifespan of 80 years is composed of just 4,000 weeks. This tool stems from a Stoic premise adapted to the digital age: we can't manage what we can't see. By translating your existence into a map of points, we transform an abstract concept (the future) into a tangible metric. This tool cross-references global demographic data with your personal risk factors (stress, sleep, habits) to project your statistical reality. Historically, Stoicism used the concept of Memento Mori to maintain humility and focus. In the digital age, saturated with endless distractions, this philosophy is more necessary than ever. The goal of this visualization is not to generate fear, but absolute clarity. As Seneca said, "It is not that we have little time, but that we waste a lot of it." Seeing the points that have already gone out versus those that remain lit creates a sense of positive urgency. It is an invitation to stop procrastinating and start prioritizing. Use it as a compass; your time is your most valuable asset. Invest it with the same precision with which you invest your money, or even more so. Please note: This tool is a statistical simulation designed exclusively for educational, motivational, and entertainment purposes. The results are based on global demographic averages and estimates of general risk factors. Axotek and its tools do not provide medical diagnosis, psychological advice, or accurate longevity predictions. Axotek does not collect, store, or share personal data; all processing is done locally on your device.
- Conversor de Unidades Presion | AxoTek
Conversor de unidades de Presion, psi, kPa, hPa, Pa, Bar, kg/cm2, atm. etc. Pressure Unit Converter The Enigma of Pressure: An Essay on Its Nature, Measurement, and Applications in the Modern World Pressure, that seemingly simple concept we learn in our first physics lessons, is in fact a phenomenon of profound implications that permeates every aspect of our universe, from the blood flow in our veins to the titanic forces that shape the stars. Here, he explores the multidimensional nature of pressure, not as a mere abstract concept, but as a bridge between scientific theory and the practical applications that define our technological civilization. In its most basic form, pressure is defined as the force applied per unit area, a description that, while accurate, barely scratches the surface of its complexity. To understand its true meaning, we must consider its role as a mediator between the microscopic and the macroscopic. In a gas, for example, pressure emerges from molecular chaos: millions of particles colliding against the walls of their container generate a distributed force that we perceive as pressure. This kinetic model, developed by luminaries such as James Clerk Maxwell and Ludwig Boltzmann, reveals that pressure is not a static entity, but rather the statistical manifestation of a frenetic molecular ballet. Pressure can be expressed and used in so many ways that how it is interpreted depends on your needs: Where: F = Applied force (in Newtons, N) A = Area over which the force acts (in square meters, m²) Example: If you exert a force of 50 N on a surface area of 2 m², the pressure will be 25 Pascals (Pa). Where: P = Pressure at a depth hh (in Pa) ρ = Density of the fluid (in kg/m³) g = Acceleration due to local gravity ≈ 9.81 m/s² h = Depth from the surface (in meters) Example: Determine the pressure at the bottom of a water tank, lake, or submarine. Example: In water (ρ = 1000 kg/m³), at a depth of 5 m: P = 1000 x 9.81 x 5 = 49.050 Pa (≈49 kPa). Where: P = Gas pressure (in Pa) n = Amount of substance (moles) R = Universal gas constant (8.314 J/mol K) T = Absolute temperature (in Kelvin) V = Volume of the container (in m³) Example: Calculate the pressure in a balloon, tire, or closed gas system. Example: A balloon with 0.5 moles of gas at 300 K and 0.02 m³: P = 0.5 x 8.314 x 3000.02 = 62.355 Pa (≈62.4 kPa). These formulas reveal how pressure adapts to different environments, from solids to fluids and gases. If pressure is universal, its measurement is marked by a Tower of Babel of units that reflects humanity's cultural and technical diversity. The Pascal (Pa), a unit of the International System, honors the polymath Blaise Pascal, but competes with the Anglo-Saxon psi, the industrial bar, the medical mmHg, and the atm of chemistry textbooks. This proliferation is not a mere historical whim, but the result of practical adaptations: tires are measured in psi because the first pressure gauges emerged in industrial England; doctors prefer mmHg because of its connection to mercury in traditional sphygmomanometers. The coexistence of these units poses an epistemological challenge: how to communicate critical values—such as the pressure of a nuclear reactor or that of a scuba tank—unambiguously? This is where the importance of conversion tools, which act as translators between technical languages, emerges. An error in units can have catastrophic consequences, as in the famous case of the Mars Climate Orbiter, lost in 1999 due to a conflict between measurements in newtons and pounds-force. The domestication of pressure is a common thread in the history of technology. Watt's steam engines harnessed steam pressure to power the Industrial Revolution; automobile hydraulic brakes multiply the force of the driver's foot thanks to Pascal's principle. In medicine, blood pressure—that 120/80 mmHg number we eagerly consult in the doctor's office—is a thermometer of cardiovascular health, while in astronomy, radiation pressure explains how solar winds sculpt the tails of comets. But pressure is also a double-edged sword. In the deep ocean, pressure crushes submarines not designed to withstand it; in a diver's lungs, it can trigger decompression sickness if not managed precisely. Even in everyday life, "social" or work pressure metaphorizes how this physical concept infiltrates our language to describe intangible tensions. Studying pressure is, ultimately, studying relationships: between force and space, between science and culture, between innovation and risk. In a world that depends on increasingly complex systems—from gas pipeline networks to space travel—understanding and accurately measuring pressure is not an academic luxury, but a vital necessity. Tools like unit converters, far from being mere technical utilities, are symbols of a collective effort to standardize knowledge and avoid the misunderstood silences that can lead to disaster. So, the next time we adjust our tire pressure or measure our blood pressure, we are participating in a modern ritual that links fundamental physics with human experience: a reminder that, in a universe governed by invisible forces, precise measurement is our antidote to chaos. Now, within the study of pressure, we can also find a subdivision of pressures, which depend on their reference and direction, these are: - Positive Relative Pressure (gauge): Atmospheric pressure is used as a reference, and pressure is added to the system from there. - Negative Relative Pressure (vacuum): Atmospheric pressure is used as a reference, and pressure is removed from it. - Absolute Pressure (barometric): Absolute vacuum or absolute zero pressure is used as a reference, and pressure is added from there. - Differential Pressure (DP): This is the difference between two pressures with the same reference, usually relative. GO TO CONVERTERS...
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