Here I copy a chemical way to remove the insulating layer of copper wire.

the recipe is Isoamyl acetate and Formic acid with a mass ratio of 1:5. To accelerate the process, the solution can be heated up to around 85 degrees. put the wire into the solution for 3 mins and then remove the covering layer (which is viscous-liquid).

tips: when heating up the solution, a layer of wax could put on top of it to stop the vaporing. store the solution in glass bottle. wear personal protective equipment.

在这里，我复制了一种化学方法来去除铜线的绝缘层。

配方为质量比为1：5的乙酸异戊酯和甲酸。 为了加速该过程，可以将溶液加热到大约85度。 将导线放入溶液中3分钟，然后去除覆盖层（粘稠液体）。

两种液体具有强烈的刺激性，一定要在通风的条件下操作。

提示：加热溶液时，可以在其上面放一层蜡以阻止蒸发。 将溶液储存在玻璃瓶中。 穿戴个人防护装备。

第二次收到大使馆的口罩了。特此一文以示感谢。

Here, I introduce the software that enables people to use one mouse to control multiple computers.

First, we need a software called, Mouse without Borders which seems to be the product developed by Microsoft.

What you need to do is download the software and install them on two/or more computers. After that, you will make some changes in the setting.

1. in the setting process, on the first computer, click ‘yes’, and on the second one, click ‘no’. you will get a code and computer name from the second computer, and input them to the first one.
2. modify the ip address. Right-click the software tray icon, you will find the setting interface. there is an option, ip mappings, please change the ip address to your real one. As most people don’t have a public ip address, so please ensure that the two computers are in the same local network.
3. enjoy it. there is hotkeys to switch the mouse from one computer to another, the default hotkey is alt+ctr+F1/F2…, you can change them in the other options interface.

在这里，我介绍使人们能够使用一只鼠标来控制多台计算机的软件。

首先，我们需要一个名为Mouse Without Borders的软件，它似乎是Microsoft开发的产品。

您需要下载软件并将其安装在两台或多台计算机上。之后，您将对设置进行一些更改。

1.在设置过程中，在第一台计算机上单击“是”，在第二台计算机上单击“否”。您将从第二台计算机上获得一个代码和计算机名称，并将它们输入到第一台计算机中。
2. 修改IP地址。右键单击软件托盘图标，即可找到设置界面。有IP映射选项，请将IP地址更改为您的真实IP地址。由于大多数人没有公共IP地址，因此请确保两台计算机位于同一网络中。
3. 好好享受。有热键可以将鼠标从一台计算机切换到另一台计算机，默认热键是alt + ctr + F1 / F2…，您可以在其他选项界面中进行更改

总的过程和国内基本相同，但是这边不用实体照片，电子照片就够了，白费了15欧元的钱。签证费缴费的时候有个bug。缴费的网站（ https://www.ustraveldocs.com/ ）需要注册，然后如果你在国内有账号的话，这边的账号就注册不了。千万不要点合并账户，否者需要上传护照，然后大致在24小时内有工作人员对账号进行合并。因为系统会通过护照号等信息进行check，防止重号。解决方法：这个时候就需要将国内的账号的相关信息修改，只要和自己的真实信息不一样就可以。随后可以正常注册奥地利这边的签证费缴费网站。

我主要是去美国开会，面试官比较nice，虽然还是送了个我一个check。收的材料主要是CV以及会议邀请信，当然护照是必须的。

美国大使馆坐落在万豪酒店（Parkring 12A, 1010 Wien）的侧边4楼。

It is very uncomfortable to read ‘inp’ files with notepad++, and there is no build-in style for abaqus. Here, based on the style from a website (I already forget where it is from), I build a style format which can be download here.

使用note pad++ 阅读abaqus的inp文件

使用notepad ++读取“ inp”文件非常不舒服，并且abaqus没有内置样式。 在此，根据网站上的样式（我已经忘记了它的来源），构建了一种样式格式，可以在此处下载。

在输出视频的时候需要选择non-24bits/pixels，可以输出纯白色背景的视频，如果选择Microsoft 解码器，即使选择白色背景，输出的视频背景仍然是灰色的。

ABAQUS cannot output video with pure white background

When outputting video, you need to select non-24bits / pixels, which can output videos with a pure white background. If you select the Microsoft decoder, the output video background is still gray even if you select a white background.

Because the data increases a lot, I have to build a system to store this data. The first stuff is to decide a system for storage. There are several choices, 1. Portable hard disk. 2. Build a new PC with some HDDs. 3. external desktop HDD cases. 4. A NAS system (Network-attached). My decision is made as follows.

Fist, the portable hard disk. It is easy for the hard disk to be disconnected. And I have four 2-5TB portable hard disks. some of them are not so stable. What’s more, I want to build a raid 1 system then the data will be safer. Choice 1 quits

Second, A new PC is too expensive and I am abroad right now, I don’t want to carry a PC to China.

Third, the HDD case is not cheap, about 100 or more euros. Then why not buy a NAS? The basic version of A NAS system from Synology DS-218J is only 160 euros with a lot of funny functions.

Forth, the NAS system. The most important and urgent requirement is storge/ backup and the most important data I have is only 2 TB. So I’d like to buy a cheap NAS case. Two bays version is enough for me. Then I don’t watch and storge movies that I don’t need a high-performance NAS such as DS 218+/Play. Then I find DS-218J (160 euros from AMAZON).

For the disk, first is the capacity. 8T is the best choice considering the price/GB. And it is good for my future data (The scientific calculation costs a lot of storage spaces). Also, I want to have a Raid 1 system, so two 8TB HDDs are needed. For the specific product, I compare several products, WD red, Seagate Wolf/Wolf Pro and Toshiba N300. The first two are very popular choices for NAS. However, their prices are too high (250), then I give up the first two. However, the N300 does not have a good review from the customer, and I found the enterprise version from Toshiba is only 214 euro then I decide to buy two Enterprise Toshiba HDD (MG05ACA800E).

So the total system is DS-218J+2 8TB Toshiba HDDs. The total cost is 600 euros.

advantages of the system, it is enough for me as a backup for my data and it provides some basic funny NAS support (For example synchronize the photos from my iPhone).

disadvantage: 1. The Enterprise version HDD is too noisy, very noisy one, even though I am sure that it is quite tough. 2. The performance of the DS-218J is also a problem, the cpu is a little bit week (always 100% busy), but it is enough for storage. 3. The speed of the USB port is slow, only about 25 MB/S. 4. The fan is always running at a high speed.

使用Synology DS 218J构建NAS

由于数据大量增加，因此我必须构建一个系统来存储此数据。首先要确定存储系统。有几种选择：1.便携式硬盘。 2.用一些硬盘构建新的PC。 3.外接台式机硬盘盒。 4. NAS系统（网络连接）。我的决定如下。

拳头，便携式硬盘。硬盘很容易断开连接。我有四个2-5TB便携式硬盘。其中一些不是那么稳定。更重要的是，我想构建一个raid 1系统，然后数据会更安全。选择1退出

其次，一台新电脑太贵了，我现在在国外，我不想将一台电脑带到中国。

第三，硬盘盒价格不菲，大约100欧元或更多。那为什么不买NAS呢？ Synology DS-218J的NAS系统基本版本仅售160欧元，具有许多有趣的功能。

第四，NAS系统。最重要和紧急的要求是存储/备份，而我拥有的最重要的数据只有2 TB。因此，我想购买便宜的NAS机箱。两个托架的版本对我来说足够了。然后，我不再观看和存储不需要高性能NAS（例如DS 218 + / Play）的电影。然后我找到DS-218J（来自AMAZON的160欧元）。

对于磁盘，首先是容量。考虑到价格/ GB，8T是最佳选择。这对我的未来数据很有用（科学计算会占用大量存储空间）。 Aslo我想要一个Raid 1系统，因此需要两个8TB HDD。对于特定产品，我比较了几种产品：WD红色，Seagate Wolf / Wolf Pro和Toshiba N300。前两个是NAS非常受欢迎的选择。但是，它们的价格太高（250），因此我放弃了前两个。但是，N300并没有得到客户的好评，我发现东芝的企业版仅售214欧元，然后我决定购买两个东芝企业级硬盘（MG05ACA800E）。

因此，整个系统为DS-218J + 2 8TB东芝硬盘。总费用为600欧元。

该系统的优点是，它足以作为我的数据备份，并且提供了一些基本的有趣的NAS支持（例如，同步来自iPhone的照片）。

缺点：1.企业版HDD太嘈杂，非常嘈杂，即使我确信它很硬。 2. DS-218J的性能也是一个问题，cpu有点一周（总是100％忙），但是足以存储。 3. USB端口的速度很慢，仅约25 MB / S。 4.风扇始终高速运转。

I bought two SRS-XB12 louder speakers. According to the Manul, they can be used as one stereo loudspeaker, however, the connection of the Bluetooth is not stable, even though they are so close. So some times, the sound will move from left to right and then right to left.

我买了两个SRS-XB12扬声器。 根据Manul的说法，它们可以用作一个立体声扬声器，但是，即使它们之间的距离很近，蓝牙的连接也不稳定。 所以有时候，声音会从左向右移动，然后从右向左移动。

I have been working with the supercomputers, Mach-1 and Mach-2 in Johannes Kepler University Linz. The CPU of Mach-1 can be found in http://www.linzwiki.at/wiki/MACH/ . Right now there are no specific types of the supercomputer, but actually, they are 8-core Intel® Xeon® Processor E7-8837 (E7 in the flowing) which is released in Q2, 2011. The CPUs of Mach-2 are 8-core Intel Xeon E5-4650 @ 2.70GHz (E5) Which is released in Q2′ 2015. According to the website https://www.cpubenchmark.net/ , the PassMark of CPU maker of four E7s is about 12698. And for a single E5, the value is 11685. If we take a look at the CPU of PC, we can found that one 12-core AMD Ryzen 7 3700X has a higher CPU marker as 23840 which is much higher compared to the previous two CPUs.

What a shame of the supercomputer that I would like to buy a workstation now, instead of to use the supercomputer.

中国管理科学研究院职业资格认证培训中心 是一个山寨单位，其网站的申请主体为京师圣坛(北京)文化发展有限公司，是一个私营企业。虽然其网站上介绍的中国管理科学研究院是事业单位，然而其本身就是一个培训机构。如果仔细看，其网站上 中国管理科学研究院的logo与真实主体的logo不一致。

总之，中国管理科学研究院职业资格认证培训中心是一个山寨机构。而且该机构会不停给你发垃圾邮件让你参加培训。而且一旦你进入了他们数据库，就不要想再出来了。

而作为一个事业单位，中国管理科学研究院自己完全不管类似的山寨机构，因而造成了该类山寨机构泛滥成灾。不作为，该类机构就是顶着中国二字想着法子变现。

http://www.zgrskxxh.org.cn/Policy/2019847.html 附一个对于中国管理科学研究院的介绍。

像这类组织，早就应该关门。