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...an existing Arduino and BBC Micro:bit devices and I'm seeking a skilled freelancer to help me connect them for a home automation project. Key Responsibilities: - Implement a system that can control lighting, monitor temperature and provide security surveillance - Ensure the system can be powered using solar, wind, battery and be connected to the internet. The ideal candidate should have experience in: - Arduino and BBC Micro:bit programming - Home Automation projects - Solar and wind energy integration - Internet of Things (IoT) connectivity - Strong understanding of security surveillance systems Your role will involve setting up a reliable, efficient and user-friendly home automation system. The ability to integrate multiple power sources and ensure the system is...
I'm looking for skilled website developers to create a rental business website for me. The site will be specifically tailored for rental businesses. Responsive website for mobile devices Functionalities: - Booking and reservation system: This is a core feature of the we...understanding of the rental business model and customers' expectations. - The ability to deliver a user-friendly and reliable website that's easy to navigate and visually appealing. RENTAL OF HOUSES RENTAL OF HOTELS RENTAL OF VEHICLES RENTAL OF EQUIPMENT SHUFFLE SERVICES EXCURSIONS AROUND SICILY POSIBILITY OF CREATING BUNDLE FOR ALL INCLUSIVE BOOKING OPTION KITE SCHOOL BOOKING MAPS WEATHER & WIND RESTAURANTS / NIGHTCLUB / BOOKING SOCIAL LINKS TESTIMONIALS & PICTURES UPLOAD FOR CL...
I need an experienced electrical designer with expertise in AutoCAD for an industrial project. The design needs to incorporate power distribution and include layouts for Solar and Wind OFC, WMS and CCTV. Ideal skills and experience: - Proficient in AutoCAD Electrical software - Previous experience with industrial projects - Deep understanding of power distribution - Capable of designing Solar and Wind OFC layouts, WMS and CCTV system Compliance: The design work must adhere to the following industry standards and regulations: - National Electrical Code (NEC) - International Electrotechnical Commission (IEC) Please, include actual experience and project samples that adhere to these standards in your bid.
For this project, I need an experienced photo editor to retouch less than 10 of my high school graduation photos. The retouch should include: - Blemish removal - Teeth whitening - Removal of under-eye circles - Removal of a few wind-blown hairs I am looking for detailed and professional retouching that will look natural and maintain the size/quality of the images. They will be used for printed graduation announcements. Your expertise in detailed retouch is essential for this job, as well as a good sense of color balance to maintain the natural look of the photos. Please share samples of your previous work demonstrating your capability in photo retouching. We have a tight turnaround and need these by 8pm CT today.
We are looking for a skilled CFD & FEA expert to conduct simulations for our boat design project. Our goal is to optimize the hull design for two specific configurations: 1. Twin-Engine/Surface Drive Design: We anticipate using twin engines and a surface drive for optimal performance. The primary focus here is on optimizing the hull for handling, speed, and efficiency. We also aim to identify the performance sweet spot for this configuration. 2. Single Engine/Jet Design: We also want to explore the possibility of using a single engine with a jet propulsion system. The goal here is to optimize the hull for maneuverability and handling, rather than top speed. We want to determine if any drastic changes, such as a smaller hull, are needed to achieve optimal performance in this se...
Hi, I need help with optimizing this air-venturi. The goal is to: 1, Adjust this air-venturi to maximize the water-aeration with as small air bubbles as possible with given parameters 2, Make it to deliver 200 and 300 liters/h (2 variants) of at 3 bars water pressure. Plus that i need some help to calculate pressure drops in PVC pipes and other flow related tasks . I prefer to pay per hour. And as we are a unfortunately poor startup, lowest rate wins. Please answer with a personal reply and not an AI generated one.
I'm in a bind. My former tenants got wind of me not having a landlord's 'additional license' from my local council, despite me always tending to their needs, from maintenance to repairs and holding the same license from a separate local authority. Now, they are calling for a full rent refund and I need legal help. - Ideal Experience: I need someone who is a UK LEGAL expert in landlord-tenant law and has managed similar cases before. - Documentation: I have all necessary papers related to my property and the tenancy agreements and can forward them for review. - Services Needed: Advising me on the best course of action, building a solid defense, representing me if the need arises, and helping me navigate any legal complexities concerning council licensing. You...
...able to create efficient, clean, and well-documented code, I'd like to hear from you. Here are details- I have to create a simulation that will find the optimal solution to go around a circuit using the least amount of power in a given time, by calculating the forces acting on the vehicle at any point. The forces have been identified to be: Drag, Rolling resistance, Incline, Wind & Motor thrust. Rolling resistance, wind (set to 0 in data should be okay to plug values in later) and incline forces have been resolved in an excel file for every data point (every metre). Drag and motor thrust which depend on the current velocity of the vehicle (see matrix explanation below). The first lap is different to the remaining 9 laps, you can work around this however you lik...
I'm seeking to secure funding for a multi-industry workers' accommodation project. The accommodation caters to construction, seasonal farm, wind farm, abattoir, and gold mine workers. For this, I need a professionally crafted project proposal and a corresponding financial model in Excel. Ideal freelancers for this project should possess: - Proven experience in drafting project proposals related to housing or accommodation - In-depth knowledge in the creation of financial models using Excel - A strong understanding of multi-industry accommodations - Great analytical and strategic thinking skills - Familiarity in the Construction, Agriculture, Energy, Food Processing, and Mining Industries would be advantageous.
I am in need of expert help to get a standard definition video recording cleaned up so that the voices can be heard more clearly. The recording is marred by background music and ambient noises such as wind and traffic. Ideal Skills: - Audio Editing Expertise - Previous work in noise reduction and audio enhancement. - Experience working with video recordings. Expectations: - The final output should filter out the background music and wind/traffic noise but not affect the clarity of the voices. - Please handle the recordings confidentially.
...in need of an expert in Computational Fluid Dynamics (CFD) to assist with the simulation of gas flow in a pipe. The goal of this project is to optimize the fluid flow within the system. Key Requirements: - Conduct CFD simulations on gas flow in a pipe system - Optimize the fluid flow pattern within the pipe - Provide recommendations on enhancing flow efficiency Ideal Skills and Experience: - Proficiency in CFD software (e.g., ANSYS, OpenFOAM, COMSOL) - Strong background in fluid dynamics and pipe flow - Experience with optimizing fluid flow systems - Ability to interpret and communicate simulation results clearly Please note that the simulations are limited to gases only. The ideal freelancer would have a strong understanding of CFD principles and the abi...
I am seeking a skilled professional to craft a comprehensive plan for a hybrid solar and wind energy system sufficient to power my entire home. Located in an area with a balanced mix of both wind and sun, I am confident that the right energy solution can be reached. The successful candidate for this project should possess: - Extensive knowledge in renewable energy, specifically wind and solar systems - Prior experience in designing home-scale energy systems - Familiarity with homes that lack an existing energy system - Creativity and innovative thinking in devising energy solutions. A detailed understanding of local weather patterns and the way they can affect energy production from solar and wind power would also be of great advantage. This project marks the...
I am in need of a skilled video editor who can efficiently remove wind noise from my less-than-30-minute wedding footage. Consideration must be given whether to keep some level of background noise or completely eliminate it - your professional recommendation would be appreciated. Apart from the noise reduction, I also require color correction to enhance the overall video. Years of experience in similar projects and proficiency using video noise reduction and color grading tools will serve well for this project.
Urgently in need of a wind load calculation and a design from a Florida registered engineer for a bamboo and wood fence which is already built. Needed for code compliance in Pompano Beach, Florida. Thank you.
I'm looking for a CFD expert who can use Ansys Fluent to assess the liquid displacement in a cylindrical tank. The tank will undergo different phases including deceleration, pitching, and rolling. Key Requirements: - Utilize Ansys Fluent to model the fluid behavior inside the tank during deceleration, pitch, and roll - Generate a comprehensive report with numerical data and visualizations that clearly show the liquid displacement Ideal Skills for this Project: - Proficiency in CFD, specifically using Ansys Fluent - Experience in modeling and analyzing fluid behavior in various scenarios - Ability to generate detailed reports with numerical data and visualizations Please note that the results of this simulation will be used to assess the liquid displacement in the tan...
...in time series analysis, correlation and regression. Your task is to analyze a dataset and find correlations between various weather variables. The aim is to forecast future trends, identify patterns and relationships, and make predictions that are precise. Your responsibilities will include: - Analysing and making predictions about specific variables such as temperature, precipitation, and wind speed. - Applying time series analysis to establish forecasts for weather patterns. - Understanding and interpreting relationships between different weather variables using correlation and regression techniques. The ideal candidate should have significant experience with the R programming language and a strong understanding of statistics and forecasting models. Familiarity with weath...
...required. Only the pages of the book and the text inside the book need to be animated. Additionally, integration of pre-existing artwork into the pages of the book is required. Key elements: - Realistic animation style - Text and page-flipping animation - Integration of Pre-existing artwork on the pages of the book - Transition into and out of the animation from video footage - Specific imagery - 'wind flipping through the pages of a book' The ideal candidate will have experience with realistic animations and video footage to animation transitions. This animation has to captivate viewers with its realism and smooth transition in and out of the video. Experience or interest in music videos is a plus. Please share your portfolio or examples of similar work involving t...
Hello, I am looking...utilised at each time irrespective of which time period of year it is. It shall also have atleast 4 Bathrooms and two kitchens. You can include moroccan raid style, dome design, basement design, small pool, or making a hill style house in which there is soil on sides to save from direct sunlight. It is important to display wind direction through the year and also sunshine direction through a 3D design. I will just provide coordinates, you have to search an calculate correct wind and sun movements. There is enough land available, so you can design as you like, important is that we have a 23-25 degree temperature inside home in all times without using excessive electricity. So it shall be able to keep temperatures naturally. Please bid only if you...
...Dynamics (CFD) analysis for an underwater equipment design. The primary goal of the project is to improve equipment efficiency. The successful individual must therefore be proficient in CFD analysis, 3D modeling, and structural analysis and have knowledge of FOM, Sloshing etc. Your responsibilities will incorporate: - Analyzing the current design using CFD techniques - Identifying areas of improvement to enhance efficiency - Advising on appropriate design modifications A background in fluid dynamics coupled with an understanding of underwater equipment will be necessary for this task. Additionally, the potential to perceive potential issues before manufacturing will be a significant asset. Please ensure you've ample experience in the implementation of desig...
...require precise and accurate structural engineering calculations for my multi-story residential building. More specifically, I need these calculations for: - Foundations: Demonstrate a sound understanding of soil mechanics, bearing capacity, and foundational materials. Previous experience with foundation calculations for multi-story residential buildings is a plus. - Roof: Address loads such as wind, snow, and self-weight. A proficient understanding of the different types of roofing systems and their materials is expected. The freelancer should hold demonstrable experience working with multi-story residential buildings and have a firm understanding of structural engineering principles. A qualification in Civil or Structural Engineering would be highly desirable. Efficiency and...
I'm looking for a talented artist to create an engaging piece of digital artwork based on the god Boreas, renowned for his association with the strong northern wind. The style should be straightforward and placed on a white background. To qualify for this project, you should possess the following: - Proficiency in digital art - A knack for creating realistic yet simple art designs - Previous experience with mythological or deity-based artwork would be advantageous - Ability to meet deadlines without compromising on quality. Bring your own creativity and interpretation of Boreas into the task, presenting this ancient god in an artistic light. Let's create something special together.
I'm seeking an expert in computational fluid dynamics who can help me understand how air flows through our stationary louvres, with a focus on improving ventilation efficiency. The goal is to work out the amount of airflow through the Louvres at different wind speed Ideally, you will have: - Extensive experience with CFD - Understanding of aerodynamics, specifically related to ventilation systems - Prior work with stationary louvres - Ability to interpret simulation data and provide actionable insights for design modifications to enhance ventilation efficiency.
This project aims at optimizing the design of a steam turbine blade. The focus is on altering the blade's shape to potentially enhance the turbine's performance. An understanding of aerodynamics isn't mandatory, as specific aerodynamic considerations will be guided by a given 3D scan. Ideal freelancers for this job should have: - Proficiency in 3D modelling and design - Create 2D Drawing - Any prior experience working on turbine blades or similar projects will be an added advantage.
I'm searching for a skilled CFD engineer who is proficient in using ANSYS Fluent for conducting in-depth fluid flow analysis. The primary goal of this project is to perform a detailed analysis, providing comprehensive data and insights. Key responsibilities include: - Conducting CFD simulations using ANSYS Fluent - Ensuring the simulation captures all relevant fluid dynamics phenomena - Providing a comprehensive analysis report with detailed data The ideal candidate should have: - Proven experience in CFD simulations, specifically using ANSYS Fluent - Strong understanding of fluid dynamics and related concepts - Ability to generate detailed and comprehensive analysis reports - Strong attention to detail and an analytical mindset. If you meet these requirements,...
We are working under an expedited deadline (less than 1 month) to integrate machine learning with our unit commitment problem (UCP), specifically focusing on renewable energy sources (RES) - solar and wind energy. Key responsibilities: - Implement neural networks in the machine learning algorithm. - Expertly merge UCP with RES (both solar and wind energy). - Expert in unit commitment problems Ideal candidate: - Proven experience in machine learning - Familiarity with neural networks - Strong understanding of renewable energy systems - particularly solar and wind - Ability to meet tight deadlines Your expertise in neural networks and renewable energy is pivotal to the success of this project. Let's make the world more sustainable together!
I'm in need of a professional who can help me with reverse engineering for the blades and vanes of an industrial gas turbine. The project primarily aims at improving the performance of these parts. Expectations and Deliverables: - Creation of 3D models: The software of choice is STL. - Technological Paths: There's no specific requirement for casting, machining steps, and coating. Skills and Experience: - Proficiency in reverse engineering and 3D modeling. - Expertise in industrial gas turbines is a plus. - Experience with STL software. - Strong understanding of performance improvement strategies is preferred. Please note, a successful completion of this project could lead to further engagement. Your ability to meet the timeline and deliver top-notch work will be highl...
I'm looking for a skilled graphic designer who is experienced with Adobe Illustrator. The main purpose of the image is to educate readers on the development of a wind farm. Key Details: - The image should have a realistic illustrated style, showcasing the various stages of wind farm development in a visually appealing manner. - The image will include annotations and/or labels, however the detail will be quite minimal. The focus is on the illustration itself, with annotations serving as supplementary details. Ideal Skills & Experience: - Proficiency in Adobe Illustrator, with a strong portfolio showcasing previous illustrations. - Experience in educational graphics would be beneficial, but not required. - Ability to creatively depict complex processes in a clear an...
I need an expert in PCB design to create a small magnetic levitation motor. My ideal designer w...working on similar miniaturized projects would be advantageous. Your ingenuity will be crucial in the success of this project. Let’s chat more about how you can help bring my vision to life. This magnetic levitation motor is used on a pump body. The size of the motor is about 15cm × 15cm, which can achieve levitation and rotation. . Smooth operation of the rotor is crucial. We plan to mount a turbine rotor on the motor rotor so that it can rotate and pump liquid, just like a pump. We plan to add multiple sensors to the rotor to detect its position and height. Also, we want to be able to control the starting and stopping of the motor via an external button. These are the go...
I'm in need of an experienced electrical engineer to design a commercial electrical system. Key Requirements: - **System Design:** The primary task is to design the electrical system ...not mandatory. - **Renewable Energy:** While I didn't select specific requirements for renewable energy, knowledge in this area would be a bonus. Skills and Experience: - Proven experience in designing electrical systems, particularly for commercial properties. - In-depth knowledge of electrical engineering principles, codes, and standards. - Experience in renewable energy sources (solar power, wind energy) would be advantageous. Looking for someone who can deliver a comprehensive, efficient, and reliable electrical system design. Please share your relevant portfolio or past experien...
...automotive sector - Steel structures designing expertise Key Requirements: - Design sleeper berth with steel frame and light-weight cladding internally and externally - Accurate length, width, and height dimensions - Conformance with ADR 42 regulations - Creation of a bolt-on application design - Ease of access for occupant - Allowance for wiring and lighting etc - AERODYNAMIC design to avoid wind drag or excess fuel consumption with the following dimensions being a must. Internal Dimensions External Dimensions Length- 650mm (Min) Length- 680mm (Max) Width- 2350mm (Min) Width- 2480mm (Max) Height- 1800mm (Min) Height- 2100mm (Max) Maximum width of any vehicle in Australia is 2500mm Pedestrian doors are only permitted on ...
I'm in need of a skilled structural engineer specializing in residential buildings, to calculate fastening requirements for 2 piece clay roofing tile based on /the information in the TRI manual, size of US Clay 2 piece tile. 130 mph wind speed class c requirements& local building code Key Requirements: - Expertise in residential structural engineering - Prior experience with roofing tile installations - Ability to asses fastening requirements/options based on the information in the TRI manual, size of US Clay 2 piece tile. 130 mph wind speed class c requirements& local building code. Please only apply if you have experience with similar projects and can provide evidence of successful completion.
I'm looking for someone who can model 2 phase flow (humid air and ice) on a flat plate and is an expert in CFD. Since the plate is cold, there will be frost formation on it.
I'm in need of an experienced structural engineer to aid in the finalization of construction documentation for a house located on the G...documentation phase, so I need support for this particular phase. - The primary focus of the engineering support is on the load-bearing capacity of the structure. - The house's location necessitates that the design is able to support the region's specific conditions, including its wind loads. Ideal Skills and Experience: - Proficiency in structural engineering, particularly in residential projects. - Prior experience with construction documentation for buildings. - Expertise in load-bearing analysis, and ideally experience with wind load analysis. - Knowledge of regulations specific to the Gold Coast, Australia would be ben...
I have a completed project of a wooden fence on a concrete retaining wall. I require a thorough assessment of seismic wind load analysis for the fence. The purpose of this analysis is to check for code compliance, specifically to meet the standards required by the El Cajon city due to the height of the fence. The ideal candidate would be proficient in: - Seismic wind load analysis - Code compliance for the city of El Cajon - Assessing fences on concrete retaining walls Your analysis will help ensure the fence meets the expected regulatory standards. I've attached a photo of the fence at its highest point.
I'm looking for a skilled AI developer who can enhance the features of images for my social media accounts. Attached photo is taken within the wind tunnel. We would like to make it pop express the feeling of flying, maybe with blue skies around. People that look at it will get the urge to fly! We would like photos with both woman and men age betwwen 18-20 and from different angels please. Ideal Skills: - Proficiency in AI and image processing - Understanding of social media image standards The project mainly involves: - Improving the aesthetic quality of the images - Ensuring they are optimized for digital display - Implementing the enhancements in a way that is compatible with various social media platforms Please provide samples of your previous work in this area, along w...
...subject of nanofluids and their application in enhancing heat transfer. This review will need to focus primarily on the various CFD numerical approaches employed in said research. The ideal freelancer for this project should have: - A strong background in mechanical engineering or a related field, with specific expertise in heat transfer and nanofluids. - Extensive experience conducting and summarizing literature reviews. Key aspects of this project include: - A comprehensive summary of current research in the field, focusing on the role of nanofluids in heat transfer enhancement. - Specific attention to the use of Finite Element Method in Computational Fluid Dynamics (CFD). - In-depth analysis of experiments conducted by researchers in the field, especially those utili...
I'm in need of a professional engineer who can help me assess the wind load on a shelter structure in a coastal area. The ultimate goal is to ensure the structural integrity and safety of the Industrial Analyzer Shelter that I'm planning to construct. Key aspects of the project include: - Wind Load Calculation: The engineer should be capable of conducting thorough wind calculations, considering the specific environmental factors associated with a coastal setting. - Structural Integrity: The aim is to guarantee that the shelter design can withstand the maximum wind conditions expected in the location, maintaining its integrity and safety over time. Ideal Skills and Experience: - Engineering Background: The ideal candidate should have a strong backgrou...
As a pioneer in the field of renewable energy, we have just designed a new type of wind powered generator. For our marketing efforts, we require the eye-catching talent of a skilled illustrator to create a highly detailed still shot of our generator. Key Requirements: - Our wind-powered generator should be depicted on its tower amidst a field of tall grasses, at the top of a hill with rolling hills in the distant background. - The image should be taken from the side view, looking up from eye level. Revealing as much detail and realism as possible. - The setting should fall under natural daylight conditions with a blue sky with a few clouds. Ideal Candidate: - Considerable experience in digital illustration, preferably in sectors related to renewable technology, landscape...
I'm in need of a skilled CFD expert with a profound understanding of aerospace industry requirements specifically for aerodynamic performance optimization. The project is currently in the phase of analyzing various airfoils like flat plate, double wedge, and NACA airfoils, all in a 2D context. The geometry and mesh must be done in Icem CFD
I am seeking an experienced engineer with expertise in conducting CFD simulations to aid in a design optimization project. The specific simulation required is a fluid flow analysis, with a focus on pressure coefficient calculations. Key Responsibilities: - Conduct a comprehensive fluid flow analysis - Calculate and analyze pressure coefficients Required Skills & Experience: - Proven experience with CFD simulations - Strong background in fluid mechanics - Proficiency in utilizing simulation tools - Understanding of pressure coefficient calculations within fluid dynamics - Design optimization experience is a plus
I am in the process of building a spacious 16x30 storage shed on my property. The shed will be required to be built in Lake County, Florida, so I need a professional to design plans that adhere to Wind Code for the region. I have shed plans which I purchased. Key requirements: - Design plans for a 16x30 storage shed in Lake County, Florida - Plans must adhere to Wind Code for the region Ideal skills and experience for this job include: - Proficiency in creating detailed, stamped shed plans - Strong knowledge of Wind Code requirements in the state of Florida - Experience with shed construction, especially in Florida, would be a distinct advantage Feel free to reach out with any questions or clarifications. Looking forward to working with you on this project.
I need a computational fluid dynamics expert who can assist me with a few key tasks. Your role will be to building geometry and mesh in ICEM CFD and convert to SU2 format. In addition, writting config file for SU2 solve. Converting these files will facilitate the ability to simulate different flow conditions and ensure compatibility with the SU2 solver. The project is time-sensitive; I am looking to have this completed as soon as possible. Ideal Skills and Experience: - Proficiency in computational fluid dynamics - Experience with ICEM CFD and SU2 - Strong understanding of geometry and mesh conversion - Ability to write Su2 conf files - Ability to simulate different flow conditions --Flow condition include: Laminar flap plate, supersonic double wedged airfoil, naca turbul...
...the best days and times for real estate photo shoots. This tool would help photographers plan their shoots around optimal lighting conditions and weather, minimizing disruptions due to undesirable conditions. Key Features: Weekly Weather Forecast: Display a weekly weather forecast specifically highlighting the best times and worst times for photography based on light quality, chance of rain, and wind conditions. Twilight Time: Recommend best time to shoot Twilight Images (20 minutes before sunset or during sunrise. Photography Tips: Offer tips on how to shoot in various weather conditions, integrating real-world photography advice into the weather forecast. Customizable Alerts: Allow users to set alerts for their ideal shooting conditions and notify them when upcoming weather mat...
I need a 2D CFD solver created on MATLAB, one that can simulate both laminar and turbulent fluid flow. It should be able to provide advanced analysis with custom metrics. Key Requirements: - Creation of a 2D CFD solver in MATLAB - Ability to simulate both laminar and turbulent fluid flow - The solver should provide advanced analysis with custom metrics Ideal Skills and Experience: - Proficiency in MATLAB - Strong background in Computational Fluid Dynamics - Experience with both laminar and turbulent flow simulations - Ability to provide advanced analysis and custom metrics in CFD simulations.
I am in need of an experienced Procurement/Sourcer who can assist me in finding and acquiring solar panels and wind turbines from trusted suppliers. The sourcing professional should be knowledgeable in the renewable energy field and have a good understanding of the market and its dynamics. Key Responsibilities Include: - Searching and identifying potential suppliers of solar panels and wind turbines - Evaluating product offerings within a budget range of $1,000 - $5,000 - Delivering details on the specifications, quality, and pricing of the products Although obtaining certifications and compliance reports for these products is not a priority, it is still a plus if the sourced products possess these documents. Skills & Experience: - Specific experience in sourcing ren...
I'm looking for a competent and knowledgeable individual in Computational Fluid Dynamics (CFD) simulation using OPENFOAM to assist me in replicating simulations that have already been conducted in scientific papers. The papers provide detailed instructions on how to implement the code in with OpenFOAM.
I'm looking for a capable freelancer to redesign our cafe's wind barriers. The current barriers are in need of a refurbishment and we're finding that they're not very sustainable. It's becoming hard to refurbish them due to their current design and we're looking for a more durable and easy-to-maintain solution. Key requirements and expectations for the project: - The wind barriers need to be more sustainable than the current ones - The design should be visually appealing, contributing to the overall atmosphere of our cafe - The new barriers should be easy to refurbish, unlike the current ones - I'm primarily looking for a redesign which can be easily installed, removed, maintained - The PVC insert is currently difficult to replace and requ...
