Fundamentals of Polkadot Economic Model

References [Polkadot Lightpaper] () Polkadot architecture Polkadot is called a next-generation blockchain protocol, which is a multi-chain system that allows the exchange of data between any other blockchain, in contrast to the common [PoW](https://en.wikipedia.org/wiki/Proof_ of_work) mining than the common PoW mining, I prefer something like Polkadot to generate blocks through NPoS, where we can directly run nodes on thousands of edge devices, which makes the whole chain with stronger security and decentralization of the whole chain. ...

October 30, 2020 · 3 min · alexchen

Running Folding@home

From Rosetta@home to Folding@home Let’s start with the main principle. Rosetta@home is only predicting the molecular structure of synthetic drugs capable of Binding Covid-19 outer spike-in protein, which can be imagined as similar to the photographic technique in photography. Rosetta can statically predict the characteristics of a particular protein, but it cannot predict how that protein molecule will function under the evolution of time. Because there will be potential differences between molecules that generate electromagnetic forces, and all the constituent elements within the molecule will interact with each other to create motion over time, when we design a synthetic drug in Rosetta that can bind the SARS-COV-2 virus, we need to enter the testing phase to see if the drug can bind to the viral protein stably, because the predicted structure is static, we cannot know whether the protein structure can bind well to the viral protein under the interaction motion, here Folding@home comes in handy, it is similar to shooting a motion picture in photography, we can get the static protein structure chain from Rosetta@home, and then simulate in Folding@home whether that protein binds well to the viral protein over time to produce resistance to the virus. ...

October 22, 2020 · 2 min · alexchen

OpenEBS Container Attached Storage

Images From Openebs Preface About OpenEBS OpenEBS is an open source storage project running on Kubernets, in line with the CAS (Container Attached Storage) architecture. All of its components run at the user level and belong to the cloud-native distributed file system on k8s. OpenEBS file system provides the following categories of features , each feature can be used in a particular environment solution . cStor: supports fault tolerance, high availability, replica copy, snapshot, clone, etc. Its backend is supported by ZFS. ...

October 18, 2020 · 11 min · alexchen

Cineneural Main Website is Online

The initial version of the www.cineneural.com website is now online, the main website is hosted on a Raspberry Pi 4 cluster built by myself, and the main function of the official website is to provide an entry point for medical image processing. The main function of the website is to provide a portal for medical image processing. To Do list: encrypt all traffic. increase the network stability of cloudflare <-> Home Raspberry Pi. ...

October 8, 2020 · 1 min · alexchen

Beacome an ETH validator

Summary This article will not go into too much technical details about ETH, but will mainly deal with how to become a validator of ETH 2.0. At the end of this year, ETH will complete the stage 0 upgrade, migrating from PoW proof-of-work to PoS proof-of-stake. Before myself at the company’s hackathon com , I thought about how to use the excess arithmetic power to do something valuable. PoW is theoretically more wasteful of energy, and miners buy a lot of mining machines for computing, while after adopting the PoS mechanism, by becoming a validator, we can finish the Instead of buying a lot of mining machines to generate new blocks like PoW, to become a validator you need to lock a certain amount of cryptocurrency as proof of interest, if you run a verifying node to verify a block and check if all the transactions inside are valid, if it passes, you will receive a reward in return. ...

September 16, 2020 · 4 min · alexchen