Online now
Hire Me!
Rate: $40.00 USD/hour
Follow Invite to Project
Browse Similar Freelancers:

xiao long

Fortran/C mixed programmer

Username: qlong

  • Has made a deposit.
  • Has verified their email address.
  • Has completed their profile.
  • Has verified their secure phone number.
  • Verified
  • Payment is verified.

Location: Beijing, China

Member since: April 2013



(5 reviews)

[see more]

No user has recommended this freelancer.

My skills:

My projects:

  • $45.00 USD
    Profile image for Seller michaelwang502


    May 19, 2014

    awesome work! This guy knows what he is doing~

    Project Description:fix a java file
  • $340.00 AUD
    Profile image for Seller tamb20


    Apr 20, 2014

    The man is awesome, great and on time delivery. His understanding of my project is well standing. Thanks to him and defiantly I will deal with him gain.<br/>

    Project Description:1- Graph of Stress/Strain. 2- Graph of Force/Time. 3- Visibility of the shape to be more Clear. 4- add a Liver (the liver organ is opj file) shape to the model after to make it a nonuniform &quot;Tetrahedral&quot;...
  • $200.00 AUD
    Profile image for Seller tamb20


    Nov 13, 2013

    Well done freelances. You will be not missed with him. Definitely I will deal with him gain.

    Project Description:N/A
  • $777.00 USD
    Profile image for Seller rnconsult


    Sep 30, 2013

    Great work. Great communication. Will use again...

    Project Description:Integrate MaximIntegrated iButton read and write functionality with a PHP based web application. The detailed specification is as per the attached document. Please review the document and research what an iButton is before bidding...
  • [Sealed]
    Profile image for Seller nrjptl03


    Jul 18, 2013

    Excellent..way of writing code...will do the work in time no matter how urgent....will go xtra mile for you......High Availability.....changes the system as per requirement..Very reliable and trust worthy, job can be assyred in safe hands.

    Project Description:A graphical approach is required to facilitate Non Programmers to be able to generate compilable C code The Interface could be in the form of a GUI or flowchart ( may be some buttons and Graphics ). There would be some Tables where the Non programmer could define his own variables, constants etc...
    xiao long has not completed any projects.
  • $1000 USD In Progress

    I need to use the android sensor data: timestamp, accel, gyro and magnetometer and display motion results

  • $200 USD In Progress

    Java open source application is built with maven and needs to integrate with a separate application that is C/C++ based. I need to wrap the C/C++ so the two can interact. First I need to build the open source java application. I will give you access to a VPN to work on. I need to have someone start right away!

  • $3000 USD Today

    开发一款安卓版预约应用打车,具体需求见附件,预算$1800,20天完成(含周末节假日),如能按期完成并验收合格,额外加$200,最好能懂中文的人士接单,这样方便沟通,或可以加QQ:详谈,注明:freelancer接单。如能合作愉快,后续还有IOS版等=================================一、乘客端主要功能:a)拼车:乘客输入出发地、目的地、出发时间、人数后,系统自动根据排班顺序推送给司机。在被接单后,显示司机信息。乘客可电话直拨联系司机。完成接送后,用户点击完成接送,并可以评价。车费可以直接用积分支付或线下现金支付。b)包车:乘客输入出发地、目的地、出发时间,系统自动根据排班顺序推送给司机。c)寄货:乘客输入寄出地、接收地、寄货时间,接收人,接收人联系方式,系统自动根据排班顺序推送给司机。(该规则不同拼车、包车,推送给当前接单司机)其他功能: 1.个人中心:用户信息、积分、乘车记录、消息(主要是系统消息及积分变化消息等) 2.推广中心:乘客通过推广,向QQ、短信、微信、朋友圈等常规推广,每发展一个获得积分奖励,以完成一次乘车任务为准。 3.设置:消息提醒(有无声、震动、),版本、软件升级等二、司机端司机收到系统推送订单,有150秒接单时间。超时自动推送下一个司机。接单前只显示出发地点,人数。接单后扣除相应积分后,显示完整信息,并能直接拨打乘客电话。司机可以跟乘客协商取消订单,如果单方面取消,收到投诉并成立,司机违约扣除积分,并对乘客补偿,乘客违约则停止使用。其他功能: 1.积分充值:在线充值,最好能用信用卡充值。 2.个人中心:司机信息,积分,接单记录,消息 3.推广中心:有乘客推广跟司机推广2种。乘客推广,以完成一次乘车任务为准。司机推广,以审核通过后为准。 4.设置:同乘客端。三、后台乘客管理。司机管理。投诉处理。订单统计,派单统计。财务统计。系统参数设置。

  • $700 USD Yesterday

    Have RFID Readers with RFIF Chip based on Impinj, NXP (Philips) and other.Would like to Scan the RF Tag straight to SQL (MS-SQL and MySQL)1) Reader + Antenna + TAG info into SQL2) At least 8 x Readers with different ChipSet (Impinj 500/2000, NXP)3) Able to Connect / Update to MS-SQL and MySQL4) Obviously GUI based with Input fields for settings like IP, Port, User, PasswordReader SDK is in C++ and looks like can read in VistualStudioReader is based on TCP/IP (Virtual TCP/UDP) and RS232/485 but prefer TCP with RJ45(with POE) as Modern Hardware is more USB related. I have USB2Serial Adaptor for COMMs.Thank you in advance

  • $700 USD 3 days ago

    Objective: The objective of assignment 2 is to create an app that will keep up with a student’s grades of a single semester but for all courses of his/her semester. On the home screen, the student should be able to see a list of all his/her courses. If the student wishes to add a course they can by click the add button and the app should allow the student to enter a name for the course. The course should also display the overall grade of the course. If the student wishes to see more details about the course they can click on the courses name and the app should display a list of grade categories. What is a grade category? A grade category is a group of grades that are associated with one overall grade. (For ex. You may have a homework grade but you may have more than one homework under that one grade. Therefore you would have a homework grade category and have multiple homework grades under the one homework grade category.) Like the course, you should also be able to see the overall grade of the grade category. The grade category should display the average of the grades under the grade category. You should also be able to add a grade category and let the student associate a name with the grade category. Similar to the course, the student should be able to click on the grade category and view all the grades under the grade category. Similar to the course and grade category, the student should be able to see all the grades, be able to add a grade (associate a name), and also be able to edit the grade’s grade.

  • $240 USD 3 days ago

    I need someone to complete a 100 Level Math course for me. The course is 8 weeks long with varying assignments. I cannot provide exact numbers on the amount of projects, but I do know that there will be weekly quizzes and probably 1 to 2 assignments per week. If you are interested, I am willing to pay $250 for the 8-week course and upon completing the course, I will provide another $100 for an A, $80 for a B and $25 for a C.

  • €1000 EUR 4 days ago

    We need a simple &quot;calculator&quot; as part of our web page, where potential customers can take a short survey and get a recommendation for one of our solutions, based on their answers. The data also needs to be fed to a database, for importing into analytics software.Please open the attached image to see the complexity of the survey.

  • £30 GBP 6 days ago

    i need some support in processing data, i need someone who can help guide me with the project that im working on, contact me for more details on the help i need.

  • $200 USD 10 days ago

    I am im working in a new protocol for sockets connection, i want to use data compression, for small data(10- 100 bytes) and some another great small data( 300-5000) bytes,i need the bests compression algorithms in c++, if possible i want 4-8 algorithm for small data and 4-8 algorithm for great small data, i need all ready to use, and explain this, i wont use some key or some another thing, cuzz i have to focus minimun possible data to send and recv.

  • $240 USD 10 days ago

    The description of the algorithms can found in the pages of the papers titled On Spectral Clustering:Analysis and an algorithm chapter 2 and Co-clustering documents and word using bipartite Spectral graph partitioning Algorithm chapter 4.1 Bipartition algorithm.

  • $700 CAD 10 days ago

    Hi,I am looking for 2-D sheet cutting optimization Plan to be developed in Java. The program will take the following inputs: 1. Metal Sheet Size ( Length x Width)2. Cutting Sizes could be One or moreOutput: optimum cutting plan with scrap size.Sample URL :,Usman A.

  • $240 AUD 11 days ago

    I want to have a 3D deformable model using java and openGL. It will be based on mathematical formulations. Need to create the solver. It should be able to import some data and the parameters use in the formulations should be easily manipulated. I will provide the script.

  • $300 USD 11 days ago

    You should implement a scientific calculator for representing graph for given formula.More details can find in attached document.

  • $300 USD 11 days ago

    Looking for a developer to build a simple Android app that will communicate with 2 external temperature control devices via a USB-RS232 adapter (FT232RL interface). The Documentation of the serial communication protocol used for each device will be provided.Basic functions required in the app:1) Send serial command to read current temperature (just a string of characters)2) Read data from serial adapter (temperature, current setting, etc)3) Display read data on screen4) Buttons to manipulate the temperature setting (and send the associated command over serial)Design of the app is secondary to the functionality of the app at this stage. If successful, the developer may be commissioned to improve the functionality and design of the app at a later date.

  • $555 USD 28 days ago

    Requirement specification- Deliver Java source code.- You can use the Apache Batik library and &quot;standard&quot; Java libraries. Suggestions on other libraries will be considered.- General description:Create a function that will smooth sharp corners on a path. (see attached image)Not a general smoothing on the whole path. Just on the sharp corners.- Function inputa path as a(org.apache.batik.ext.awt.geom.ExtendedGeneralPath) or (java.awt.geom.GeneralPath), you can choose what you angle in degrees to be used to identify sharp radius on how much to smooth the corners.- DescriptionIdentify sharp corners in the path based on the angle input.Smooth the identified sharp corners using the radius value. (the corners should have a nice smooth radius when done)- Outputa path (same type as input) with smooth corners.

  • $777 USD Mar 30, 2014

    use the wavelet neural network to recognize the images (fingerprint and iris) for same personthe data base (100_150)images

  • $1111 USD Feb 16, 2014

    My project is about recognizing text from a live video then save it on Mysql table, this program must be like a car&quot;s plate number recognition .

  • $1000 USD Jan 4, 2014

    I have the sketch of a web application that would involve P2P LIVE video/audio streaming. The application should be able to facilitate multiple/ simultaneous LIVE video/ audio streaming for my clients. It should also be able to run on mobile devices, phones, tablets etc. I have worked out the site layout but i need someone to do the coding and finishing touches to it.I will require about 60 days of support after the project is completed to help solve any problems that may arise.Thanks.

    xiao long does not have any open projects.
    xiao long does not have any work in progress.
[see more]


[see more]



Chief Engineer

Sep 2011 - Present (2 years)


Lead Software Engineer

May 2002 - Sep 2011 (9 years)


Senior Software Engineer

Apr 2001 - May 2002 (1 year)

Tsinghua Unisplendor