2013年1月14日星期一

Should i go to meet Hunter in Auckland?

Since the last time i leave that place, it has been three months ago. I find back the happiness i want, but i also miss the days when i do research days and nights, which always competitive and progressive.

I heard that is one place which is a holy place for bioengineering,which is Auckland engineering institute, lead by Professor Hunter. I always like to follow old folks because they are the treasurer for the society. But just wondering is it possible for me to enter the top research institute?

I see my supervisor and Hunter photo, ever think whether Hunter can wait until the day i go to Auckland?

just part of sharing...
you should only do research when you find an interesting topic. else it will make you regret.

I do research, not for phd and master(even thought they are a target), but for my hobby,

2013年1月9日星期三

as a biomedical engineer , 1st day

starting as biomedical engineer in an unknown hospital,

I meet some top skill technician, and learn on how to handling equipment with patience.

My supervisor always say i think you do not have patience.

so i allow myself to give up and wake up again, i always want to return to research life if some good supervisor can find me in this world. because i think only first class supervisor can bring out first class students.
my supervisor maybe one of good teacher, but she do not have vision, and always mentioned that she is tied up of work..I thought only when you die, so you dont tied up of the work?:)

never mind, I just choose a place to start my career path, I believe research can bring the world better..

so i start my ielts life and beginning my life as biomedical engineer.
today completed task:
1. wash up the suction machine, unscrew the four allen screw, and added the oil in to strengthen the suction function

2. get screwed by sister because i accidentally fall down the pulse oximeter...The finger tip sensor is functioning at the end of days.

3. clean the workshop

4. write down the quality objective in the form, and try to review it with my supervisor.

5.fill in IEM form

2012年6月21日星期四

abaqus 破解方法

from http://www.verycd.com/topics/2832420/ 1. 双击dvd2中的setup.exe,几秒钟后弹出安装对话框, 安装documents 2. 把dvd1\crack里面的License文件abq6101.dat拷出来放到硬盘目录下,编辑License文件,this host替换为自己的计算机名(不要改动物理地址和端口),添加ABAQUSLM文件的路径:比如我的 SERVER this_host ID=20111111 27011 VENDOR ABAQUSLM 改为 SERVER dundas ID=20111111 27011 VENDOR ABAQUSLM C:\Abaqus\License\ABAQUSLM.exe 3. 设置系统环境变量 我的电脑->属性->高级->环境变量 系统变量栏新建 变量名: LM_LICENSE_FILE 变量值: 27011@this_host--(this_host为自己的计算机名) 4. 双击dvd1中setup.exe,几秒钟后弹出安装对话框提示安装c++(见后面说明),完成后提示安装license,选择just install the licenseing utilities。 license安装完成后提示安装product,选cancel退出安装。 5. 将编辑后的License文件abq6101.dat复制到安装目录C:\SIMULIA\License下,并新建文件abq6101.log。 运行License管理器,建立许可证。 具体操作:双击C:\SIMULIA\License目录下的lmtools.exe,选择config services选项卡: Path to lmgrd.exe file指向C:\SIMULIA\License\lmgrd.exe Path to license file指向C:\SIMULIA\License\abq6101.dat Path to debug log file 指向C:\SIMULIA\License\abq6101.log 并勾选:Use Services和Start Server at Power Up,点击Save service" 接着选择Start/Stop/Reread选项卡,点击Start Server,提示Server Start Successful。 6.安装product 双击dvd1中setup.exe选择product,填入激活服务器地址: 27011@this_host(this_host为自己的计算机名)完成安装。 双击dvd1中setup.exe会再次弹出安装c++界面,可以跳过此界面直接进入光盘中product文件夹中安装。 例如32位系统安装路径:dvd1 H:\win86_32\product\Windows\Disk1\InstData\VM\ 双击install.exe直接安装product。 ---------------------------- 说明 双击dvd1中setup.exe,几秒钟后弹出安装对话框提示安装c++等运行环境,安装版本按默认安装,非高级用户不用安装Fortran等运行环境。 如果高级用户需要确定会用到abaqus所有运行环境如Fortran等的具体版本,请如下操作: 开始->运行 cmd 在命令窗口输入 H:\setup.exe -sysinfo (其中盘符H根据个人情况不同) 几秒后出现system requirement status 其中status:pass项为你已经安装的运行环境,fail项为你未安装的运行环境。 未安装的运行环境的作用高级用户应该都很清楚了吧

2012年6月11日星期一

have a dream

http://www.opennovation.org/ I finally find a good webstie which is willing to share the knowledge. I wish one day maybe i can become a professor, but the dream seems leave me away.

2012年5月30日星期三

stress-strain

我觉得你应该先拉,from strech, you will generate the stress, then you apply the formulate to curve fitting.if is biaxial, then you should I1 and I2 =1, and I3=0

2012年5月28日星期一

wake 尾流

http://www.eng.fsu.edu/~shih/succeed/cylinder/cylinder.htm#Wake today learn what is wake wake就是尾流,很贴切的翻译

2012年5月10日星期四

CFD and adina

Today finally understand clear about CFD how it works. there is actually not such thing call pressure-pressure condition, it sounds i am too silly, as there is a redundant condition, you speficy the velocity condition, at the same time, you are also manage to settle the pressure , as in cfd, both side are equalized. one you give magnitdue, another one it will automatically calculate for you. i finally can go into CFD. i also manage to solve adina problem 给版主做个补充:overlap不单指流场网格和结构场发生重叠。 由于adina在FSI求解时,采用的是ALE列式,简单些说即流场和结构场交接区域的网格是可变形的,当发生“强耦合”运动时,或者网格初始质量不太好(比如网格的初始夹角太小、塌陷率过大等),一旦网格运动,很容易导致网格变形后出现“雅克比阈值”接近0甚至小于0,产生overlap。 各个CFD程序内置的overlap标准也不同,原因在于网格出现压缩或者拉伸后回直接影响积分精度,因此,理论上,这个阈值设置高一些,精度保证就高一些,但出现overlap的概率就大一些。 要解决overlap,根本上只能从网格初始质量寻求解决办法。当然,adina内置的一些辅助措施,如设置leader follower对于缓减overlap也是很有效的,甚至有些时候会让“貌似不可算”(主要指初始网格质量很差,能保证开算,但很容易就overlap的模型)的网格顺利计算完毕。 有兴趣的可以试试看,在稳态流场计算时,只要模型初始网格雅克比阈值大于0,是不会遇到overlap的,原因在于稳态流场中一般用纯欧拉格式的有限体积法,网格是不会变形的,差别只是收敛时间的长短或者难易。 简单些说,雅克比矩阵就是一个多维函数在某点位置对应的各个维度上的偏导数矩阵(该导数矩阵使得改点对应母函数具有线性最优逼近特征),如果偏导数矩阵小于0 ,表示函数在改点存在反向,否则保持原有方向。对于一个单元来说,如果在节点位置出现反向则意味着什么呢?你可以思考一下,再进一步,对一维网格、二维网格、三维网格分别意味着什么呢 http://www.forumadina.com/forum.php?mod=viewthread&tid=209&extra=page%3D1 http://forumadina.com/forum.php?mod=viewthread&tid=274&highlight overlapp的判断标准问题