Scrap silver daily prices grams işler

Hello, I want to have a mobile video chat application made. There will be correspondence and video chat, there will be automatic translation during video chat and there will be in-app purchases, I am waiting for your prices.

...- Domain Driven Design (project must be seperated by related Class Lib) - Developing the backend of the web application using .NET Core & Web Api - Frontend development using Vue.js - Efficient integration of APIs throughout the application - In - there are various historical data as formatted csv. I want import Historical Trades to PostgreSQL database, Daily spot and USDM CSV files can be downloaded. I want Vue.JS front end page for upload these downloaded csv files. Backend should be asp.net Core Web api. Sample CSV File Columns: id trade ID price Price qty Quantity base_qty Base Quantity time Time in unix time format is_buyer_maker Was the buyer the maker Desired App Features: - PostgreSQL Database Connection - An excellent responsive

Hello, I have been using computer and internet since my childhood and I developed myself on web design, SEO, Digital marketing, graphic design. I have at least 5 years of agency experience and simultaneous freelance experience. What studies can we do together? > Web Design (Personal, Corporate, E-commerce, Special projects) > SEO (100 percent increase in a short time) > Graphic Design (Coolest modern designs for Social Media and Web sites) > Digital Marketing (I make your project or brand popular on all social platforms in a short time and provide the desired return.) Merhaba, çocukluğumdan beri bilgisayar ve internet ortamını kullanmaktayım ve kendimi web tasarım, SEO, Dijital pazarlama, grafik tasarım üzerinde geliştirdim. En az 5 yıllık ajans deneyimim ve eş zam...

...olmalı -Site içi toplu bildirim olmalı tüm üyelere site içinden toplu haber, bilgi, uyarı vs iletilebilmeli -Toplu sms sistemi olmalı tüm üyelere toplu sms gönderilebilmeli -Bir üye seçip ona özel site içi mesajı uyarı ve ayreten sms gönderilebilmeli yönetici ve destek ekibi adına -Logları takip eden çoklu hesap açmayı önlen güvenlik sistemi olmalı -Premium üyelik sistemi olmalı; Örnek; Silver, Gold, Platinum Silver Üyelik Özelliği-) Ayda bir defa ilanını site içi bildirim olarak herkese bildirim olarak iletebilme, günlük ilan hakkı x sayıda artar, bir ay boyunca x sayıda öne çıkan reklam ekleyebilir. Ve bunun gibi ekstra öz...

Hello, I want to have an e-commerce website. People who want to write articles and people who want to buy articles will become members of this site. The authors will determine the price themselves. The employer will choose the writers according to these prices. They will be able to send messages to each other, but it will be forbidden to send information such as phone number and e-mail during the message and it will be detected. Just like fiverr. com. Authors and buyers will become members of the site. Buyers who want to buy articles. They give some information about the article's name, what the article will be about, and select to authors. Authors are people who write articles. They give information about themselves. The authors will determine the price themselves. Fo...

...product: *Patient Can search various doctor by specialisation, location and can take appointment Can look for available time slots. Private Consultations with doctors. Look for daily Health Tips by various doctors. Ask Public Questions. Get daily updates of various Events & News. Set Reminder for new appointments , medicines and so on.. Also can give Rating to doctor , hospital and write feedback. Medicine reminders Scribble Pad, Documents Upload *Doctor Accept Appointment requests. Manage Timeslots. Manage Profile. Manage Patient’s Profile. Private Consultations with patients. Can go for Home visit. Post daily Health Tips which is useful to all users. Answer to Public Questions ask by various patient. Post Events details. *Hospital -Clinic Accept Ap...

orta düzeyde ingilizce-türkçe çeviri yapabilirim en düşük bütçe 10$ yazıyor ama daha düşük fiyatlara da yapabilirim I can translate medium source English-Turkish lowest budget says $ 10 but i can also do it for lower prices

...product: *Patient Can search various doctor by specialisation, location and can take appointment Can look for available time slots. Private Consultations with doctors. Look for daily Health Tips by various doctors. Ask Public Questions. Get daily updates of various Events & News. Set Reminder for new appointments , medicines and so on.. Also can give Rating to doctor , hospital and write feedback. Medicine reminders Scribble Pad, Documents Upload *Doctor Accept Appointment requests. Manage Timeslots. Manage Profile. Manage Patient’s Profile. Private Consultations with patients. Can go for Home visit. Post daily Health Tips which is useful to all users. Answer to Public Questions ask by various patient. Post Events details. *Hospital -Clinic Accept Ap...

Herkese merhabalar, ekte yer alan projenin içinde hali hazırda gereken tüm bilgiler verilmiştir. 26.05.2020 tarihine kadar yapılması gerekmektedir. Proje tamamen ingilizce yapılmalıdır ve bahsi geçen şirketin lokasyonu İzmir/Türkiye olmalıdır. Şirket, cafe - restoran veya bir franchising olabilir. Projenin yapılış süresinde irtibat halind...halinde kalmak ve günlük ilerleme raporu vermek zorunludur. Zaman ayırdığınız için teşekkürler. Hello everyone, all the details about the project are attached to the file below. The due day is 26.05.2020. Project must be done in English. The company must be located in İzmir/Turkey. The business can be cafe, restaurant or any franchising, you got the point. Keeping in touch with me and reporting the ...

...olmalı -Site içi toplu bildirim olmalı tüm üyelere site içinden toplu haber, bilgi, uyarı vs iletilebilmeli -Toplu sms sistemi olmalı tüm üyelere toplu sms gönderilebilmeli -Bir üye seçip ona özel site içi mesajı uyarı ve ayreten sms gönderilebilmeli yönetici ve destek ekibi adına -Logları takip eden çoklu hesap açmayı önlen güvenlik sistemi olmalı -Premium üyelik sistemi olmalı; Örnek; Silver, Gold, Platinum Silver Üyelik Özelliği-) Ayda bir defa ilanını site içi bildirim olarak herkese bildirim olarak iletebilme, günlük ilan hakkı x sayıda artar, bir ay boyunca x sayıda öne çıkan reklam ekleyebilir. Ve bunun gibi ekstra öz...

I need to scrap price and product tittle information from mobile applications. Crawling changing price, Mobile uygulamadan ürünlerin isim ve fiyatlarının bilgisini çekmek istiyorum. Örnek uygulamalar, Getir, Cepteşok, A101 Kapıda

Sistem 4 ayrı bölümden oluşmaktadır. Admin Paneli Öğretmen Paneli Öğrenci Paneli Veli Paneli ADMİN PANEL ÖZELLİKLERİ Öğretmen Bölümü Manuel olarak öğretmen ve öğretmene ait paket tanımlayabilecek. Doğum günü olan öğretmenlere Site üzerinden otomatik veya manuel mesaj gönderebilecek Paket Bölümü 3 Bölümden oluşacak (Örn; Silver, Gold, Plantium) Manuel olarak Paket bilgileri düzenlenebilecek. (Örn; 10 Kişi, 500 SMS) SMS paketleri oluşturabilecek ve SMS i biten öğretmen Sadece SMS alabilecek. Rapor Bölümü PAYTR üzerinden alınan paketler ve Manuel Eklenen ödemeleri tablo halinde görülebilecek Günlük, Haftalık,Aylık ve Y...

web scraping Sample web site. Mysql table in price .

Merhaba, satın almış olduğum bir mobil uygulamanın re-skin işlemlerini yaptırmak istiyorum. Çok gelişmiş bir uygulama değil, o yüzden makul fiyat tekliflerinizi bekliyorum. Günlük Burçlar Mobil Uygulaması . ___ Hello, It is a small diameter horoscope application. Developed with Android Studio. I want to change the design again for the applicati...re-skin işlemlerini yaptırmak istiyorum. Çok gelişmiş bir uygulama değil, o yüzden makul fiyat tekliflerinizi bekliyorum. Günlük Burçlar Mobil Uygulaması . ___ Hello, It is a small diameter horoscope application. Developed with Android Studio. I want to change the design again for the application. plus the new mobile app logo. I want to re-skin a mobile application that I ha...

...animation, there will be video interstitial ads shown to the player. If the player can not finish the puzzle in the specific time or moves in the special puzzles then it will be a fail and the player will have 3 options: Resume from where left - need a rewarded to watch Skip level - need a rewarded to watch Restart the level - interstitial and this backs the player to the level start puzzle Two prices are needed: 1. If we provide the mechanic with paper and pen solution and the freelancer also handles the art 2. If we provide all art Geliştirme Platformu: Unity Oyun Platformları: IOS ve Android Level Editörü: Bu oyu için gerek yok, döngüyle mekanik tarafından oluşturulacak Art: 2D SDK: Facebook, Admob Oyun mekaniği serbest çalışanların kı...

: Silver Ring katogorime daily 20 products are entered and I want my products to be shared with 5 different social media accounts. price range between 50 Euro and 100 Euro...

Selamlar ben bi script tasarlatmak istiyorummetin2 ve benzeri csgo oyunlarında hesap alımı satımı ilan açma ve hesap yükseltme ve buna benzer şeyler için isteklerim aşşagıda maddeler halinde sıra...satıcı ürün eklerken satış süresi belirlemeli 1 saat 3 saat 6 saat 12 saat 24 saat ve alıcı satın aldığında o süre zarfında satıcı teslimatı gerçekleştirmez ise ödeme yine havuzdan alıcıya dönmeli 16- sitede canlı destek sistemi de kurulmalı EKSTRA OLARAK ; en son ne zaman aktifti başarılı işlem sayısıbaşarısız işlem sayısı diğer ilanları üye madalyonu bronz silver gold pro gibi satışa göre / 20 satış bronz 50 satış silver gibi mesela TEKLİFLERİNİZİ BEKLİYORUM İyi günler iyi çalışmalar... ör...

Merhaba Silver, profilinizi fark ettim ve size projemi teklif etmek isterim. İstediğiniz ayrıntıyı sohbet üzerinden tartışabiliriz.

Merhaba Silver, profilinizi fark ettim ve size projemi teklif etmek isterim. İstediğiniz ayrıntıyı sohbet üzerinden tartışabiliriz.

Her türlü konu hakkında çevirileriniz yapabilirim. Çevirilecek metnin içeriği, kelime sayısı vb. uygun bir fiyat çıkartabiliriz. Çevirilerimde konu sınırlaması yoktur. Her türlü metin(akademik,bilimsel,edebi vb) çevirmekteyim. Çeviriler ingilizceden türkçeye ya da...çıkartabiliriz. Çevirilerimde konu sınırlaması yoktur. Her türlü metin(akademik,bilimsel,edebi vb) çevirmekteyim. Çeviriler ingilizceden türkçeye ya da tam tersi yapılacaktır. I can translate your text from English into Turkish or from Turkish into English. I can translate every text from every subject such as Literary text, Scientific documents, Academic papers, essays etc. It depends on your ne...

...adresine bakabilirsiniz. Ayrıntılar için ek dosya yollayabilirim. --------------------------------------------------------------------------- Application Users gives points to each other. The things they said and what do you know when it is interpreted as good or bad. They do this using a word template. Everyone start "500" points. Assessment results are scores of daily, weekly, monthly, yearly and past is shown in the application. I want "ClassDojo" logic. . I can send additional files for details....

daily yoga by dicle markası için bir logo arayışımız var. Yaratıcılığın serbest olduğu bir proje. Turkuaz,yeşil veya mor renkler kullanılabilir. Yoga,sağlıklı yaşam gibi konular etrafında bir logo olması gerekiyor.

Web Sitemiz için SEO çalışmasına ihtiyacımız vardır.Günlük 5k hedefi düşünülmektedir. We need for our Website SEO work . Daily 5k target is considered.

hello i want to personal web for myself i will put there everything related with me videos photos informations daily news like everyday. menu will be like this but i need proffessional design. merhaba ben kişisel web sitesi tasarımı düşünüyorum, hergün kendim ile ilgili bilgi haber resim video girişi yapmak istiyorum. Linkteki menüler olacak amadaha profesyonel tasarım istiyorum.

...bitirdim ve yükseliş gösteren bir kariyerim var ilgilerinize rica olunur.. traslate-english_Internet marketing is the most common mode of sales into one of over the internet recognized several sites advertising on when given a visually well-crafted product is very good values ​​can take on the world market shed we as a version that can be sold is becoming so this work as a specialist nominal prices for you on the world market can get you about 50 verebli as advertising on the site and include loans that we make to you within 3 days, hundreds of partners based on customer I find I finished my job is the marketing faculty and have a career that is rising interest are kindly requested to ___Інтернет-маркетинг є найбільш поширеним способом продажу в один з більш і...

We need a website to sell complete VPN services; including client panel, SSL supported free anonymous web based proxy, free anonymous email, server overview, features and prices, product comparion table, advantages, help, faq, troubleshooter, setup and abuse pages. Coding can be based on asp or php. We will offer free account for test drive. Our packages supported OPENVPN, L2TP/IPSEC and PPTP protocols. We prefer HTML5 and CSS3 on pages but it's not required. We would like to discuss details. Turkish: ----------- VPN satış servisimiz için bir satış web sitesine ihtiyacımız var. Web sayfası müşteri paneli, ssl destekli ücretsiz anonim web tabanlı proxy, anonim email, sistem durumu, ücretlendirme, ürün karşılaştırma tablosu, ürün ...

Türkçe Kısaca bir webcrawler yazdırmak istiyorum. sitelerinde satılan tüm ürünlerin fiyatlarını toplayan ve ekranda görüntüleyen bir kod yazdırmak istiyorum. English Briefly I need a simple webcrawler http://www.carrefour.com.tr...bir webcrawler yazdırmak istiyorum. sitelerinde satılan tüm ürünlerin fiyatlarını toplayan ve ekranda görüntüleyen bir kod yazdırmak istiyorum. English Briefly I need a simple webcrawler I need a desktop application that collects and shows prices of all the products sold in above sites.

I am 26 years years old and married with 2 children looking for part time work from home. I have experience with computers and good typing skills, i have completed a childcare course at Tafe. I really would like this opportunity to work from home as its hard for me to work outside and look after my children.

...website with a nice design to be made the necessary configurations, the system structure is simple and can be installed in 4-5 days. Design is very important, however, we need to structure the admin site. 10 should be a place at the top banner, banners, admin section of the site will be entered also discounts for hotels in the middle and at the bottom of the display determined to be inputs such as daily room rate, certain parts must banners. facebook & twitter to be member of the site with the information and advertising on the site, e-mail should be sent to people who are members of in short, one must be very careful in two parts, especially part of the design and admin Project Details in detail in the project will give to friends. System 5 Stage (module) Want to Bu...

I am looking for creative designers who can invigorate my jewelry line with modern charm. The selected freelancer will be required to create impressive and cutting-edge designs for rings, necklaces, and bracelets, all fashioned from silver. Key responsibilities will include: - Creating designs that infuse modern aesthetics - Working on designs primarily using silver The ideal candidate will possess the following: - A strong background in jewelry design - Proven creativity and a modern aesthetic taste - A deep understanding of working with silver - The ability to translate creative concepts into beautiful, wearable jewelry. Please include samples of your work, specifically any pieces that align with my design needs. This will be a significant factor in the selectio...

I'm seeking a creative designer who can help amp up our billboard advertisement for a multivitamin syrup. The ideal freelancer will be a trendsetter, envisioning an engaging, out-of-the-box design that will reach both children and adults alike. Key components for the project: - Highlight "Daily essential vitamins" as the prime benefit of the syrup. - The presentation should evoke creativity and be an absolute trendsetter in the market. Skills and experience: - Proven experience in billboard design - Demonstrable creative thinking - Ability to appeal to a wide target audience (children and adults in this case) - Excellent understanding of colors, style, and visual elements to resonate with different age groups Please submit your bids complete with references o...

I'm looking for a professional to help me launch a YouTube channel dedicated to sharing my ministry's sermons and teachings. I need full video production and editing assistance in order to make this happen. Key tasks include: - Collaborating on content creation: I need someone who can work alongside me to ensure the content we're producing is engaging and relevant. - Daily video production: I'm aiming to post a new video every day, so the capacity and availability to turn around content quickly is crucial. - Editing: The videos need to be polished and professional. This involves not only basic editing but also adding engaging visuals and any necessary graphics to make the content stand out. - Adding text: Helping me add subtitles to the videos, for accessi...

I'm looking for talented online tutor for Math, Science, and English. The ideal candidate will be responsible for: - Providing regular classes, doubt-solving sessions, and masterclasses. - Preparing Daily Assignments, Tests, class notes, and Teaching Materials. - Building effective relationships with students and parents. - Designing a Learning Improvement Strategy to enhance students' performance. Key Requirements: - Experienced in tutoring in Math, Science, and English. - Proficient in teaching middle school (6-8) and high school (9-12) students. - Strong communication and relationship-building skills. - Able to develop engaging teaching materials. - Familiarity with online teaching tools and platforms. Your responsibilities will include creating an engaging lea...

We are seeking an experienced [VA] to help us with our company tasks such as social media posts, research data entry etc... The ideal candidate should have a strong background in [LinkedIn Job posting - data entry - Google drive/sheets] The tasks are very simple, however, this will be ongoing, daily work for the foreseeable future. Must be reliable and consistent in order to be successful in this role

I require a savvy data scraping professional who can efficiently collect specified details from retail giants Amazon, eBay, and Walmart. I'm interested in: - Extracting product details (name, price, description) This activity should be performed daily. The ideal candidate would have experience in data scraping, particularly from the mentioned websites. Proficiency in appropriate tools and a keen attention to detail is expected to ensure high-quality, timely, and consistent data harvesting.

I, as a client, am in need of a skilled professional to handle content creation and scheduling for my Instagram page on a daily basis. This includes: - Images: Photoshoots, editing, and formatting for Instagram posting. - Videos: Creation, editing, and formatting for Instagram posting. - Graphics/Infographics: Design and creation of visual content relevant to the message being displayed. The candidate should have experience in digital photography, video filming/editing, graphic design, and social media management. Excellent knowledge of Instagram, its various formats, and the platform's algorithm for maximum engagement is also crucial for successful outcomes. Proficiency in Adobe Photoshop, Illustrator, Premiere Pro, or any similar software will be advantageous.

Seeking journalists, activists, reformist to join a Australian team to work daily in providing support and awareness on issues of individual cases of indo and pakistani community overseas such as family separation, racism.. injustice.. government support

we're currently working on a project that involves predicting stock closing prices using Python. We're in need of a website developer to create a platform for our project. The website will include features such as a login and register page. Once logged in, users should be able to select a stock from a drop-down menu (e.g., Apple, Microsoft) and make predictions. The output will be the predicted closing price (that our model predicts) for the selected stock. Additionally, we'd like to incorporate a 'favorites' feature, allowing users to bookmark stocks for quick access during future logins.

I'm looking for an expert in Excel to build a comprehensive 'Team Scorecard' for my team. This sheet will be used to track a range of tasks and behaviors to ensure the team is performing at their best. Key Features: - The project involves tracking various tasks and behaviors including daily reports, client communication, social media postings, timekeeping, invoicing, and meeting attendance. - I need the sheet to calculate total and average points automatically. This will be based on the tasks completed and the quality of those tasks. - It should also include conditional formatting to highlight outstanding performances. This will help us recognize and reward exceptional work. - Data validation is important to ensure accuracy and consistency in point entries. - Visu...

In need of a seasoned freelance professional with a background in Airbnb management, including pricing strategies, guest communication, and listing optimization. The scope of this project includes: - Overseeing daily airbnb management - Expert optimization of our Airbnb listing - Efficient and effective guest communication via email - Applying a well-versed pricing strategy to increase bookings Desired Skills and Experience: - More than two years of experience in Airbnb management - Detailed understanding of listing optimization using professional photographs, specific keywords, and detailed property descriptions. - Strong written communication skills for managing guest inquiries and bookings via email. Interested bidders should detail their experience and strategies fo...

I'm currently using a line chart that displays historical data of prices of items sold online. I would like to create a metro map style of stacking lines for the cases that prices of different series overlap. I've found this not possible with standard chart libraries that I'm currently using. I'm looking for a developer that would be able to implement a custom solution using D3 JS and include the line chart in my React app. Attaching screenshot for reference of metro map showing stacked lines the way I want to implement them. Thanks

...raise the price or ask for a higher budget, I will report your profile. This is because it wastes my time. Please carefully read the requirements and watch the video () to understand the project before placing your bid with your actual price for the work. Watch the video for the requirement here. I'm repeating this: do not use low prices as bid prices just to get my attention, and do not waste my time. If you waste my time by placing a very low bid without actually stating the amount you want for the project, I will report you as a time waster who did not follow the instructions. I'm looking for a reliable freelancer who knows how to create custom WP designs. Read the requirements here and watch the video here. I'm searching for a

I have a project that requires the migration of all product information from a Wix platform to a Shopify store. I have exported the data to an Excel CSV file which includes: - Product names and descriptions - Product images - Product prices - Product options and variants - Product skus Given the format, an Excel specialist with thorough experience in CSV file formatting would be particularly suited to this project. Experience with Shopify's product listing format will also be immensely valuable. The task at hand is to modify the CSV file accordingly so it's compatible with Shopify's import method. - Key Skills: Excel, CSV file formatting, Knowledge of Wix and Shopify's product data structure - Ideal Experience: Previous product data migration between CMS plat...

We need a local partner from Greece to help us with basic messages sent from our greek players, some occasional translations and general management of the game, including users' general feedback on both the Facebook and game platform. The applicant must be a Greek native speaker and have at least 2 hours to dedicate to this position daily. We don't require the person to be online at specific times, just to deal with the issues very promptly. We offer a fixed monthly salary for this part-time position. Key Responsibilities: - Translation: The primary task is to translate the game content into Greek accurately and with a good understanding of the cultural nuances. - Proofreading: After translation, the specialist will have to proofread the Greek text thoroughly to ensure i...

...unlimited wallets with blockchain confirmations is appreciated (binance, trust, blockchaine, coinbase, luno, cropty, kraken ,etc.......... ) since it flashes USDT or BTC, it must be visible in the USDT or BTC wallet address for 365 days. There will be no transaction fees when sending "flash USDT/BTC" to "usdt wallet" "btc wallet" as there will be no confirmation. There will be no limitation on daily USD transfers. It cannot be considered as a false transaction. Sending USDT or BTC from one wallet to another wallet with a normal Internet connection should take a normal amount of time. 2) These USDT will disappear after 365 days (negotiable) Note: - There should be an option to select the difference calendar ranging from 10 days to 365 days depending ...

I'm in need of a talented and reliable developer who can implement a machine learning model in .NET Core for a simple time series prediction task. Key Requirements: - You'll need to utilize machine learning techniques to create a model capable of predicting daily /hourly visitors as we have data for each enterance. - The model must be suitable for .NET Core and efficiently integrated into the existing system. Ideal Skills and Experience: - Proficient in .NET Core - Strong understanding of machine learning algorithms, particularly those suited for time series prediction. Please note that the specific machine learning algorithm to be used was not specified, so you'll need to have a versatile understanding of various algorithms. Your ability to work independently ...

I need an experienced freelancer to help me attract 50 attendees to my upcoming online workshop. The workshop is aimed at beginner traders and will focus on educating them about gold and silver trading. Workshop is tomorrow and needs 50 attendee

I'm seeking a talented graphic designer to bring my vision to life by creating 1-5 diverse planner designs for my Etsy shop. The designs can range from daily, weekly to monthly planners as the specific type of planners weren't specified. Therefore, creativity is key in this project. Skills and proficiencies ideal for this job include: - Advanced knowledge in graphic design software: Adobe Illustrator, Photoshop - Experience in designing unique planner layouts - Eye for aesthetics and detail While the target audience wasn't explicitly defined, the designer should be able to cater to a broad range of consumers, from students to professionals and the general public. If you believe you're up to the task, hit me up. I look forward to seeing your proposals!

...tracking of an array of expenses. The ability to enter itemized costs is a must, and other daily expenses (office, car fuel..). Also monthly expenses like rent, salaries, bonuses and truck or excavator maintenance ect. - Income: This should include a breakdown of different revenue sources. - Employee tracking: A system to input and manage each employee's work hours. - Machine rental: Documentation of the equipment rented, including the duration of rental. - Fuel consumption: Dedicated section to record fuel usage by each piece of machinery. - Machinery utilization: The calculation of utilization percentage considering hours of operation and kilometers driven on a daily basis. And i need all in Daily, Weekly and monthly overview The ideal candidate for this t...

To all proficient developers with a knack for security enhancement, your expertise is required! I have an ongoing spam issue affecting various areas (registration page, comments section, contact forms) of my website - an issue I encounter daily. Here's what I already have in place: - CAPTCHA However, this hasn't been effective enough in curbing the pesky robot registrations. Looking to Work With: - An expert web developer with extensive knowledge of anti-spam technologies and website security. - Someone with prior experience in implementing Honeypot and IP blocking techniques. - Quick response rate would highly be appreciated given the frequency I'm encountering this problem. Your job will focus on: 1. Reviewing and enhancing the current CAPTCHA system. 2. Se...