For my project, I'm seeking an adept professional to create and use a microgrid environment in Matlab as a means of reducing energy costs. Expertise in the use of the Deep Q-Network reinforcement learning algorithm is fundamental. Main responsibilities will be: - Creating a microgrid in Matlab. - Implementing a Deep Q-Network reinforcement learning model. What you must consider: - I will provide the data for the load power (P_load) and photovoltaic power (P_pv). - The cost of the generated power (P_gen) and grid power (P_grid) must be taken into account. Ideally, contenders are expected to have a solid background in Matlab, machine learning (ML), and specifically, a deep understanding of reinforcement learning. Furthermore, due to the technicalities invol...
I'm in need of a skilled and experienced chemical engineer to help me with I only want the attached pictrures to be re designed and drawn with software like visio or Lucid chart. I do not mind changing the lay out. But i want it for learning purposes so it should be full of colours and simple Ideal Skills and Experience: - Proven background in chemical engineering with a focus on process design - Ability to work efficiently under tight deadlines
I am seeking a professional electrical engineer who is well-versed in MMC programming, especially for the DSP 28377D. Using Matlab and CCS Key Responsibilities: - Debugging and improving the existing code - Ensuring all tasks are executed correctly post code optimization Ideal Candidate: The proficient candidate for the role is someone with proven expertise in MMC programming and a deep understanding of the DSP 28377D. An engineer who can effectively debug and refine the current code to ensure all tasks are successfully carried out is highly sought after. The primary objective here is ensuring error-free code execution. In addition, problem-solving skills, attention to detail, and dedication to task completion are crucial.
...process without the need for additional purchases. *Teamviewer, Anydesk connection Upon project acceptance, I will provide the contractor with the necessary installation files. Please place your bids after considering the job requirements and complexity. Prompt and successful completion could lead to more such opportunities in the future. Skills Required C Programming C++ Programming Reverse Engineering...
A detailed technical explanation will be given about a block whole designed using Matlab simulink.
We need our CSS Landing page to display a keywords for an Architectural, Engineering, Design Company. keywords for upload to be delivered to Freelancer after award
...Science, Geography, or related field. • Familiarity with programming languages such as Python, R, or SQL. • Experience with API integrations and data manipulation techniques. • Strong understanding of machine learning and AI concepts, and the ability to integrate predictive models into software applications • Stay up-to-date with the latest industry trends, technologies, and best practices in data engineering, analytics, and AI Additional Desirable Skills: • Knowledge of data privacy and security best practices. • Attention to detail and a commitment to delivering high-quality work. • Excellent problem-solving, critical thinking, and analytical skills • Effective communication and collaboration abilities, with the ability to translate tech...
Necesito un ingeniero que sepa programar un robot ABB en RobotStudio y aplicar algunas librerías de Matlab de Peter Cooks para desarrollar las trayectorias de un nombre como "DAVID". Tengo el código empezado y los archivos CAD para compartir en RobotStudio. En el fichero están las instrucciones que hay que seguir en el trabajo.
...showing that we are worth it. All needed documents can be found in attachment. The ideal freelancer for this project should have experience in graphic design, document creation and Figma. A background in proposal design for technology companies would be a plus. Please provide samples of your past work in your proposal. It should be a bundle that is used as offer for our software which optimizes engineering firms in the construction industry. Here one example I like and can be used as basics - but i need the triangles horizontal, but I need it reworked and like requested with the above pages and company style. => (no pictures on front page - keep it business wise and only use it when
...member of our engineering team, you will play a crucial role in designing, developing, and deploying robust software solutions that power our platform. Responsibilities: * Collaborate with cross-functional teams to design and implement scalable, reliable, and secure software systems. * Develop high-quality code in Rust and GoLang to meet project requirements and deadlines. * Optimize software performance and ensure scalability across distributed cloud environments. * Implement best practices for software development, including code reviews, testing, and documentation. * Stay updated on emerging technologies and industry trends to continuously improve our software architecture and development processes. Requirements: * Bachelor's degree in Computer Science, ...
I'm seeking expertise to assist with a planning application process for a listed building. The task will involve replacing the current rooftop with clay tiles. For the project to proceed successfully, it's crucial that ideal candidates have: - Solid experience with UK building regulations especially for listed buildings - A background in architecture or civil engineering - Excellent drafting skills to create reliable building measurements and specifications, as these are currently absent - Effective communication skills to liaise with the local planning authority, even though initial contact has been made - Experience working with clay tiles The successful bidder will be able to navigate the complexities tied to working with listed buildings and deliver all technical do...
...experienced 3D artist to transform engineering drawings of a park into 3D model files. Key Requirements: - You must be able to render detailed and visually appealing 3D models with colored streambeds, slopes, and paths. These elements should be textured with natural earth tones. - The streambeds, slopes, and paths must be visually distinct and align with a natural, organic color palette. Ideal Skills: - Proficient in 3D modeling software. - Strong understanding of park design and landscape architecture. - An eye for detail and a keen sense of color choice. - Previous experience with 3D rendering of outdoor spaces would be a major plus. The final deliverables should be 3D model files that are ready for further editing, if needed. A good understanding of engineering dra...
I am in need of well-rounded civil, structural, and MEP engineering services to work with my architect to construct a modern boutique hotel in an urban setting. This project will have the following specifics: - Urban Location: The location of the boutique hotel is in a central city area. Experience with navigating city permits, regulations, as well as urban construction is greatly appreciated. - Modern Style: The style of the hotel should be contemporary and modern. This extends to structural design and mechanical, electrical, and plumbing systems. Hence, I am seeking contractors with a track record of creating sleek, modern spaces. - 2-3 Storeys: The hotel will have between two and three floors. Engineers with specific expertise in multi-story construction and who can maximize...
I'm looking for a professional who can create beginner-friendly video tutorials on Ethereum trading. Key Points: - Platform: The tutorial will focus solely on Ethereum trading, so a deep understanding of this cryptocurrency is essential. - Level: The target audience for the videos are beginners, so the content should be clear, concise, and easy to follow. Ideal Skills and Experience: - Strong knowledge of Ethereum and the crypto trading world. - Experience in creating educational content, particularly for beginners. - Excellent communication and presentation skills for conveying complex concepts in a simple, engaging manner. If you have a knack for explaining things and want to help aspiring crypto traders get a strong start, then I'd love to hear from you.
I'm in need of a knowledgeable individual to assist me in teaching high school chemistry, specifically focused on chemical reactions and organic chemistry. - Mastery of these topics is imperative. - Experience in teaching high school level chemistry is beneficial, however experts with hands-on experience in chemical reactions or organic chemistry fields are also welcomed. - Familiarity with common teaching materials and textbooks is a necessity, as I will provide specific resources for you to follow and integrate into the lesson plan. Looking forward to employing your skills to catalyze my student's understanding!
I'm seeking a skilled data scienti...learning engineer to help me with a project on fraud detection. Key Points: - The purpose of the project is to identify fraudulent activity in a social network. - The dataset will be provided in CSV format. Before applying Graph Neural Networks (GNN) for node classification, there are specific feature engineering tasks that need to be completed. Ideal Skills: - Strong background in machine learning, particularly with graph neural networks and node classification. - Experience with feature engineering specific to time-based data (e.g., Von Mises distribution). - Familiarity with fraud detection techniques and best practices in the field. I'm looking to have this project completed as soon as possible. Please only apply if you c...
...distribution of furniture for each room - the exact determination of the types of interior carpentry - determining the exact types of glass partitions - complete tiling of the bathrooms with the selected type of tiles - positioning of sockets and switches - positioning of sanitary objects - **Structural Engineering Design**: I'm also in need of a structural engineer who can develop a comprehensive resistance project for the house. The engineer should possess a strong background in structural engineering, relevant experience in residential projects, and the ability to develop structurally sound designs. •Foundation plan • Foundation details • Plate formwork plan over the ground floor • Plate reinforcement plan over the ground floor • Formwork...
I'm seeking to develop a robust safety system for a large, multi-leveled mine. The device should be ...base station. - Developing a scalable solution suitable for a large, multi-level mine configuration. - Leveraging the provided materials for development. Please note these materials will be sent to your location. Ideal Skills and Experience: - Proficiency in working with LoRa modules. - Experience in designing safety systems for mining environments. - Knowledge in gas detection technology and engineering. - Candidates from India would be preferred. Applicants, please include your past work, detailed project proposals, and relevant experiences for consideration. The proposal should have a clear timeline and project milestones. Looking forward to innovative solutions to enhan...
I need a skilled audio engineer to enhance the quality of a song I recorded at home for my instagram Reel. The song is missing that professional touch, and I'm looking for someone who can make it sound more polished and refined. Ideal Skills and Experience: - Experience in audio engineering, with a strong portfolio of previous work - Ability to work with a variety of music genres - Proficiency in using a range of audio editing software (e.g., Pro Tools, Logic Pro X, Ableton Live) - Understanding of different music elements such as dynamics, eq, and compression Please include samples of your previous work in your bid. This can turn out to be a regular weekly work
As part of this project, I need a freelancer with Chemical or Mechanical engineering background to do a model using Aspen HYSYS for CO2 capture from a flue gas stream using Pressure Swing Adsorption (PSA) process (using either zeolite 13X or Activated carbon as the adsorbent).
I'm in need of a structural engineer to assist with the analysis and ensuring of the structural integrity of my single-family home. MUST BE BASED IN LIVERPOOL Key Responsibilities: -...analysis and ensuring of the structural integrity of my single-family home. MUST BE BASED IN LIVERPOOL Key Responsibilities: - Conduct a comprehensive structural analysis of the entire home. - Provide detailed feedback and recommendations on the existing structure. - Ensure the structural integrity of the home. The perfect candidate for this role would have a solid background in structural engineering, particularly in the residential sector, and a strong understanding of the requirements of single-family homes. The ability to communicate complex findings in a clear, understandable manner is ...
I need a branding turnkey solution which would include website, logo, letterheads, business cards, one page flyer of our services, presentation deck template, Instagram, LinkedIn, Facebook brand packs and any other relevant collateral. It is a fin...our services, presentation deck template, Instagram, LinkedIn, Facebook brand packs and any other relevant collateral. It is a financial advice company focussing on 20s - 50s. I would like the overall style to be elegant, clean, professional, minimalist. I have a copywriter so no need to write copy. Brand kit design will obviously need to be consistent across all brand assets and I'll need a tutorial on how to edit the presentation deck and upload posts using social media templates. Timeline for project is ideally one or two weeks....
I'm looking for a Social Media Marketer Intern to help manage and grow our presence on Facebook, Instagram, and Twitter. The ideal candidate should b...and analytics tracking. You will be responsible for developing and posting engaging content, planning and scheduling posts, and monitoring the performance of our social media channels. In terms of content theme, I'm particularly interested in content related to engineering. The intern will be expected to create and curate posts focused on technology, lifestyle, and fashion as it relates to engineering. This is a great opportunity for someone looking to gain experience in social media marketing, especially in the field of engineering. The position is remote and part-time, and offers the chance to work with ...
...system implementation. The goal is to create two compelling articles for a Scopus indexed journal on the above mentioned topics. Skills needed are: - Extensive knowledge of earthquake early warning systems - Excellent writing and research skills - Ability to present scientific information in a clear, engaging manner - Previous experience writing for academic journals (preferably science/engineering focused) Please note that the project has no strict timeline constraints. The priority is to ensure the articles are of highest quality and meet the standards of Scopus indexed journals. However, any guidelines regarding word count limit, citation style, or formating were not specified by the client and may need to be investigated further. Your ability to work on such an undertak...
...vision Add sound: background music ( noise opening doors when picking up items) Add a game over or victory with the game credits ( like Louise ) Add keys to open doors add hospital beds with keys Replace the guard by the doctor to respect the story a minimum Add at the very beginning of the game a kind of loading screen to briefly tell the story the purpose of the game and how to get out ( tutorial how to move and pick up) Make sure to spawn in the cells add a timer or life system to lose ( either the time is up -> game over or the prison catches so many times the person -> game over The right candidate will have experience in: - Developing exciting, engaging and challenging escape games - Writing high-quality, efficient code - 3D graphic design. This project wi...
I'm an intermediate WordPress user and I'm looking to learn how to set up a comprehensive RSS Gallery Slideshow Article for Microsoft Start. I would appreciate a step-by-step guide or tutorial on how to achieve this.
...Python expert capable of automating tasks within Plaxis software. Your primary responsibility will be to devise a Python code that can define the heterogeneity of the soil in Plaxis 2D. Skills and Experience: - Strong Python programming skills - Prior experience or understanding of working with Plaxis software - Experience in defining soil heterogeneity using Python - Background in Geological Engineering or related field would be a bonus Details of the job: - Write Python code for Plaxis software automation - Develop a system to define soil heterogeneity within Plaxis 2D - Test the code for accuracy and efficiency - Provide comprehensive documentation on how the code works Your expertise should ideally lead to more streamlined and efficient use of the Plaxis software. Please p...
I'm in need of a skilled civil engineer to assist with my site development project. Currently, the project is at the construction documentation phase. Key responsibilities: - Develop detailed engineering plans and drawings based on the initial site design - Ensure compliance with all relevant regulations and standards - Work closely with the construction team to address any issues that may arise - Quality control of the documentation, ensuring accuracy and completeness. The ideal candidate should have a strong background in civil engineering. This is a great opportunity for a proactive and detail-oriented professional to contribute to an exciting construction project.
I am in need of an experienced Video Editor to cut and splice my social media videos. They typically last less than one minute and are dedicated to producing educational and tutorial content. Ideal Skills: - Proficiency in video editing software - Experience with short form editing - Knowledge in educational and tutorial content production Key Responsibilities: - Cutting raw footage, assembling that footage, adding music/ sound, - Ensuring the video follows a coherent narrative and effectively communicates its educational purpose. Your high level of attention to detail and storytelling skills will be highly appreciated.
Im looking for someone who has mechanical and electronics engineering background to build a physical product prototype Key Requirements: - mechatronics and embedded systems background specifically appliances using heat/steam.. The ideal professional for this job should: - Have strong prototyping skills. - Be familiar with usability testing methods. - Have experience creating prototypes or MVP's
I'm in need of a skilled content creator who can write engaging crypto news articles and convert them into insightful 15-30 minute YouTube videos. Key requirements include: - Comprehensive understanding of the crypto space - Exceptional writing skills - Proficiency in video editing - Experience in creating news reporting and explainer/tutorial videos Below are the specific details of the role: 1. Frequency: One video per week. 2. Content: In-depth analysis of the Top 8-9 crypto news stories from the previous week. 3. Requirements: Each news story should include a screenshot and an authenticated link. 4. Script Length: The script for each video should range from a minimum of 15 minutes to a maximum of 30 minutes. If you're passionate about cryptocurrency and skilled...
I need a structural engineer to provide a certifcate for existing Aluminium Access Ramp with specific features tailored for wheelchair access. Key Requirements: - Design should be structurally sound a...to provide a certifcate for existing Aluminium Access Ramp with specific features tailored for wheelchair access. Key Requirements: - Design should be structurally sound and safe for wheelchair usage. - Incorporate Handrails for additional support and safety. - Non-slip surface to prevent accidents and ensure easy wheelchair movement. Skills/Experience Required: - Proficiency in structural engineering, particularly in designing ramps or similar structures. - Knowledge of regulations and standards for wheelchair access structures. - Experience with materials like Aluminium would ...
...level of nitrates and nitrites provided by natural sources can be less than or greater than synthetic nitrates and nitrites, as this varies greatly between products. However, that means these organic and natural meat products still retain the potential to produce nitrosamines when cooked at high heats because they still contain nitrites. The source of the nitrites does not matter when undergoing a chemical reaction. It's essential to keep this in mind when grocery shopping because our food products, especially our meat food products, require preservatives to retain their quality. Whether you choose natural, organic, or traditional meat products, nitrates and nitrites will still be present in some form to keep our foods safe and fresh. As we fire up our grills and make ve...
...Requirements: - The device must be small, less than 10 cm in size. - The primary material for 3D printing will be PLA (Polylactic Acid) (or any other filment). - The level of precision required for the capsule clamping mechanism is low, greater than 0.5 mm. - Device should be simple, not more than 15 parts (the less the better) Ideal Skills and Experience: - Proven experience in 3D mechanical engineering, particularly in designing precision devices. - Strong knowledge of 3D , abilety to produce set of STL files for printing. - Familiarity with designing assemblies that involve applying controlled forces. Please provide previous work samples and references when applying. Your ability to meet the specifications, and deliver on time and within budget, is crucial. Payment will be ...
I am seeking an experienced mechanical engineer to perform a winch pulley calculation for an industrial application. The calculation should focus on the load acting on the winch when increasing the height of the convey...the load acting on the winch when increasing the height of the conveyor. Key Requirements: - Determine the load to move the conveyor upwards by moving the height arm. - Determine the number of pulley blocks required to enable the use of a 500kg winch. - The design should also prioritize longevity, anticipating a lifespan of over 3 years Ideal Candidate: - Proven experience with mechanical engineering calculations, specifically involving winch pulley systems - Familiarity with industrial power requirement standards - Experience creating designs for long-term use...
I am in need of a project manager/scheduler for managing shipbuilding, marine engineering, and naval architecture projects. Maintain all Project schedules in line with timelines, reporting any discrepancies and actions to the Senior Project Manager, ensuring projects remain within scope, schedule, and defined budgets, in collaboration with relevant stakeholders. Key requirements and functions of the application include: - Task Management: The application should allow for both high-level and detailed task management. This is crucial for the successful progress of the project. - Resource Allocation: The application should have the ability to handle resource allocation efficiently. I would like a combination of manual allocation by the project manager and automatic allocation based ...
I'm seeking an experienced Electrical Engineer to help with the integration of device communication protocols. Key Responsibili...Electrical Engineer to help with the integration of device communication protocols. Key Responsibilities: - Implement communication protocols for integration - Ensure the device can communicate seamlessly with other systems Ideal Candidate: - Proficient in power electronics and inverter hardware design - Experienced in integrating device communication protocols - Strong understanding of electrical engineering and power systems This project will require a high level of technical proficiency and attention to detail. The successful candidate will have a proven track record in similar projects and be able to deliver high-quality results within the ag...
I need a skilled engineer to determine the maximum allowable working pressure (MAWOP) for my project's annulus casing. The ultimate goal is to ensure safety, prevent potential blowouts, and confidently understand the pressure parameters we can operate within. Your task: - Strictly follow API standards - Ideally, you should be familiar with v...should be familiar with various methods of calculating MAWOP, however, as we haven't specified a method, your expertise in choosing the ideal method is highly anticipated. Skills and Experience: - Strong understanding about MAWOP - Well-versed with API standards - High level of expertise in Hydrostatic pressure method, Gas gradient method, and Combined method is a plus - Proven experience in engineering projects involving pr...
Description: We are looking for a skilled Python developer with experience in machine learning and data science to help with a project involving sign language translation. The project is built using Jupyter notebooks and several Python scripts that integrate TensorFlow, scikit-learn, and other libraries. Responsibilities: make a tutorial how to run this project the sign to text part only Proficiency in Python and familiarity with Jupyter notebooks. Strong background in machine learning, particularly with TensorFlow and scikit-learn. Ability to troubleshoot and debug complex codebases. Excellent problem-solving skills and attention to detail. Good communication skills and ability to provide clear documentation. Project Duration:
I currently have a need for an experienced Mechanical Engineer. Without any specific project details, I am looking for someone with a wide ranging talent within this field. As such, your tasks could span from designing components, conducting simulati...potentially including HVAC systems, robotics, or automotive components. Additionally, proficiency with tools and software is vital. The specifics may vary, but potential options include AutoCAD, SolidWorks, and ANSYS. Ideal skills and experience: - Broad knowledge in Mechanical Engineering tasks - Experience with diverse systems and components - Proficiency in AutoCAD, SolidWorks, ANSYS, or similar tools - Exceptional technical drawing ability If you are versatile and adaptable in the field of Mechanical Engineering, I enco...
I'm looking for an expert 3D modeler to create high-quality game objects for my project. Key objects include a club set for a club environment, as well as various types of golf sticks. The candidate should: - Expertise in 3D modeling software and techniques - Creative and imaginative in designing 3D objects - Previous experience in ...different 3d file+texture in JPG format In this project post, I also attach example of .mqo file that can be used as baseline to create the club design (position, variable/parameter name later on when design must not be changed). Condition of work success: able to view it properly in the model viewer app (application that can resembled what it look like inside the game). necessary game tools and tutorial will be given if the project is awarded...
I'm planning a technical workshop focused on the subject of flood modelling. - This is not an introductory event - the participants attending this will already have advanced knowledge of the topic. - Therefore, I need a freelancer who is de...presentations, conduct interactive sessions, breakout groups, and Q&A sections. - As the facilitator, you should be able to guide analytical and technical discussions effectively and ensure the workshop runs smoothly. You should be able to provide clear demonstrations and examples, and handle challenging questions from participants who are familiar with the field. A background in environmental engineering, water resources management, or a similar discipline would be especially advantageous. Exceptional presentation skills are cr...
I'm looking for a MATLAB programmer with expertise in developing advanced algorithms. The ideal candidate should be able to develop a program based on the water cycle algorithm for optimizing a given function.
I'm currently experiencing functionality issues with my Optisystem and need an expert to help me resolve it. Key Responsibilities: - i need to do ofdm code in matlab (tx and rx) And connect it with optisystem to make co-ofdm - and i need to get BER vs OSNR carve when change distance of optical fiber.
I'm in need of an expert in cloud engineering, specifically with extensive experience in Amazon Web Services (AWS). The right candidate will be unparalleled in their understanding of AWS's distinct services, with a principal focus on storage and content delivery. - Overall AWS Expertise - AWS Batch Expertise - DynamoDB Experience To reiterate, while proficiency in AWS as a whole is vital, the primary point of focus is on its storage and content delivery component, as well as DynamoDB. Any record of successful projects involving these components will strengthen your bid.
** I want to make some modifications to my book cover ** The redesign is prompted by the release of a new edition, which includes fresh content that I'd like to reflect on the cover. The changes would be minor, such as adding a few details or stickers. Do NOT chan...cover ** The redesign is prompted by the release of a new edition, which includes fresh content that I'd like to reflect on the cover. The changes would be minor, such as adding a few details or stickers. Do NOT change the overall style of the cover, it's simple, just adding some sticker of slight modification to the cover to reflect the following: Main highlights people appreciate: Prompt Engineering Data Analysis Also, we might consider adding something bold like "+2,500 prompts" on the co...
I'm looking for an experienced mechanical engineer with expertise in thermal analysis to assist me with evaluating the thermal performance of a heat pump system. Key Tasks and Requirements: - Conduct a thorough evaluation of the current thermal performance of the system. - Use the data gathere...thermal performance of the system. - Use the data gathered to help optimise the design for better heat dissipation in future iterations. - Provide comprehensive insights and suggestions on potential thermal issues that may surface. The ideal freelancer for this project is: - A mechanical engineer with a focus on thermal analysis. - Experienced in working with thermal analysis. - Proficient in using Matlab. - Able to provide detailed and actionable insights based on the findings from ...
I'm at the prototype stage of my product and I need a skilled mechanical engineer to help me improve it. - Areas of expertise: Even though I didn't specify a particular area in mechanical engineering, a broad knowledge in the field, particularly in structural analysis, fluid dynamics, and HVAC systems, could be beneficial. - Main objective: Improvement and optimization of an existing prototype. You'd revise the current design and propose enhancements that will increase efficiency, reduce costs, or improve performance. - Skills needed: Prototype testing and debugging, design improvements, and knowledge in production processes. Experience with similar projects is highly valued. Let's refine and perfect my product together.
I require a comprehensive set of engineering plans for a commercial project. This includes electrical, mechanical, and plumbing plans. Additionally, I need the following: - Detailed Floor Plan: showcasing the layout and features of the space - Site Plan: illustrating the structure's placement on the property - Energy Code Plan: ensuring compliance with energy regulations - 3D Interior Design: providing a visual representation of the interior space The ideal freelancer must have prior experience developing commercial engineering plans and 3D interior designs. Proficiency in relevant software for engineering and design is a must. Strong communication skills are also important as we'll need to discuss the project details and adaptations. Must live In...
...selected out of 1.15 lakh from 8th to M.Sc. IOQM 2022 : Qualified Part A of toughest Math exam for students & wrote INMO . Harvard Ready Player 50 : Among only 3700 across the world to solve all 7 levels . CERTIFICATIONS: Google Advanced Data Analytics Professional Certificate | Google - View Credential Google Cybersecurity Professional Certificate | Google - View Credential Machine Learning Engineering for Production (MLOps) Specialization | - View Credential Deep Learning Specialization | - View Credential SKILLS Programming: Python, JavaScript, RUST, Golang, C, C++ Frontend Development: HTML, CSS, JavaScript, ReactJs Responsive design, Cross-browser compatibility Web performance optimization Backend Development: , Flask, RESTful API Microservices
