Research on the Synergistic Work Mechanism of R&D Teams

2008 ◽  
Author(s):  
Huatao Peng ◽  
Jixin Xin
Keyword(s):  
Work Mechanism

scholarly journals Design choices: Mechanism design and platform capitalism

2021 ◽  
Vol 8 (2) ◽  
pp. 205395172110343
Author(s):  
Salomé Viljoen ◽  
Jake Goldenfein ◽  
Lee McGuigan
Keyword(s):  
Economic Theory ◽  
Computer Science ◽  
Mechanism Design ◽  
Social Life ◽  
Online Advertising ◽  
Social Costs ◽  
Human Interaction ◽  
Digital Platforms ◽  
Market Rules ◽  
Work Mechanism

Mechanism design is a form of optimization developed in economic theory. It casts economists as institutional engineers, choosing an outcome and then arranging a set of market rules and conditions to achieve it. The toolkit from mechanism design is widely used in economics, policymaking, and now in building and managing online environments. Mechanism design has become one of the most pervasive yet inconspicuous influences on the digital mediation of social life. Its optimizing schemes structure online advertising markets and other multi-sided platform businesses. Whatever normative rationales mechanism design might draw on in its economic origins, as its influence has grown and its applications have become more computational, we suggest those justifications for using mechanism design to orchestrate and optimize human interaction are losing traction. In this article, we ask what ideological work mechanism design is doing in economics, computer science, and its applications to the governance of digital platforms. Observing mechanism design in action in algorithmic environments, we argue it has become a tool for producing information domination, distributing social costs in ways that benefit designers, and controlling and coordinating participants in multi-sided platforms.

scholarly journals Blockchain Beyond Cryptocurrency: Non-Fungible Tokens

2021 ◽  
Author(s):  
Burcu Sakız ◽  
Ayşen Hiç Gencer
Keyword(s):  
Business Models ◽  
Disruptive Innovation ◽  
Peer To Peer ◽  
Smart Contracts ◽  
Blockchain Technology ◽  
Wide Range ◽  
Peer Network ◽  
Work Mechanism ◽  
Distributed Networking ◽  
Peer To Peer Network

Blockchain technology is a disruptive innovation with the potential to replace existing business models that rely on centralized systems and third parties for trust. Even if there are a lot of application areas, blockchain used primarily for cryptocurrencies. Satoshi Nakamoto implemented the first blockchain application and invented the world’s first digital currency which is named as Bitcoin in 2008. Fundementally Bitcoin relies on cryptographic “proof of work” mechanism, digital signatures, and peer to peer distributed networking layer in order to provide a distributed ledger holding transactions. In 2014, a second generation of blockchains allow to program and execute them over distributed networks such as Ethereum project. The code to program any asset stored in blockchain’s peer-to-peer network is called as "smart contract" and smart contracts gives a powerful tool to developers for decentralized applications. There are various types of tokens that anyone can built on top of Ethereum and by combining smart contracts and new tokens, this paved the way of possibility to build a wide range of decentralized projects. One of the disruptive blockchain based innovation impacting intellectual property is called non-fungible-tokens or NFTs firstly introcuced in late 2017 on Ethereum network. This research contends that blockchain and non-fungible tokens (NFTs) which are cryptographically unique, scarce, non-replicable digital assets created through smart contracts and provably digital collectible assets. Our objective is to give NFT taxonomy, review NFT platforms and discuss technical challenges as well as recent advances in tackling the challenges. Moreover, this paper also aims to point out the future directions for NFT technology.

Experimental Study on Seismic Behavior of Small-Sized Fly Ash Hollow Block Wall

2012 ◽  
Vol 446-449 ◽  
pp. 418-423
Author(s):  
Ming Xu ◽  
Zhu Peng ◽  
Meng Jing Chen ◽  
Zhong Fan Chen
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Fly Ash ◽  
Seismic Behavior ◽  
Ultimate Load ◽  
Failure Characteristics ◽  
Process Failure ◽  
Work Mechanism ◽  
Hollow Block ◽  
Block Wall

Based on the experiment of five full-scale small-sized fly ash hollow block walls under low-cycle reversed load, the influence of aspect ratio, common horizontal reinforcement, size of structural column section to the loading process, failure characteristics, cracking load, ultimate load, deformation, ductility, stiffness and energy dissipation of the walls was studied. Simultaneously the mechanical properties and work mechanism of the small-sized fly ash hollow block wall has been analyzed.

Lightweight and Secure Image Segmentation-Based Consensus Mechanism

2020 ◽  
Vol 10 (1) ◽  
pp. 18-33
Author(s):  
Jianquan Ouyang ◽  
Jiajun Yin ◽  
Yuxiang Sun
Keyword(s):  
Image Segmentation ◽  
Huffman Coding ◽  
Distributed Network ◽  
Computational Power ◽  
Chain Code ◽  
Work Mechanism ◽  
The Stability

Consensus mechanism is a fundamental technology of blockchain, ensuring the stability. The most popular consensus mechanism is proof-of-work mechanism. It attracts massive nodes through the distributed network and requires the nodes to generate nonces and hash them to accumulate workload. However, most of the generated nonces and hash values are meaningless and discarded. Such massive quantity of computational power id dedicated for nothing, which proves that the power is not used in an effective way. Thus, this paper proposes a neoteric MDL criterion of image segmentation based on an efficient chain code with Huffman coding and a novel consensus mechanism for blockchain using image segmentation with the proposed MDL criterion as the procedure of accumulating workload and generating nonces.

Research and Implementation of Component Based Process Reconstruction in ERP System

2011 ◽  
Vol 271-273 ◽  
pp. 1078-1081
Author(s):  
Yi Qun Chen ◽  
Li Qiu Zhang
Keyword(s):  
Business Process ◽  
Enterprise Resource Planning ◽  
Business Process Reengineering ◽  
Resource Planning ◽  
Management Tool ◽  
Process Reengineering ◽  
Erp System ◽  
Work Mechanism ◽  
Process Reconstruction ◽  
Effective Service

ERP-Enterprise Resource Planning is an advanced management tool, which can provide effective service for enterprise purchasing manufacturing, marketing and goods circulation etc. The fast changes of market and drastic competition between enterprises request ERP system can support enterprise Business Process Reengineering and reconstructed business process. This paper analyzes the disadvantages of traditional ERP system, the request of Business Process Reengineering, then brings forward a workflow based method for analyzing, building, developing and executing ERP system. The research of this thesis is built on J2EE application platform, the application model, component implementing and work mechanism of workflow in ERP system.

Calculation Method on the Internal Force of Frame-Composite Wall Structure in Plastic Stage

2011 ◽  
Vol 94-96 ◽  
pp. 112-118
Author(s):  
Cheng Hao Wu ◽  
Meng Guo ◽  
Xu Feng Jiang
Keyword(s):  
Calculation Method ◽  
Internal Force ◽  
Computational Method ◽  
Wall Structure ◽  
Architectural Style ◽  
Continuous Approach ◽  
Work Mechanism ◽  
Shear Type ◽  
Composite Wall ◽  
Influence Degree

The multi-grid composite wall has unique structural types, and its stiffness can be adjusted according to different anti-seismic requests and complex architectural style. Referencing the frame-shear wall structure, the cooperative work mechanism and shear-sharing ratio calculation method of frame-composite wall structure are studied systematically in this paper. Based on the fundamental theory of Timoshenko beam, the frame-composite wall structure is regarded as double anti-seismic system consisting of shear type frames and shear-flexural type beams. The fundamental differential equation is established by the continuous approach, and its analytical solution of displacement and internal force are derived. Then the practical computational method of earthquake shear-sharing ratio on the frame-composite wall structure is put forward, and the influence degree that the composite wall rigidity degenerates to the structure internal force distribution is explained through concrete examples.

Unsteady Work and Wake Recovery due to Pressure Wave Interaction in a LP Turbine

2015 ◽  
Author(s):  
Martin Marx ◽  
Martin Lipfert ◽  
Martin G. Rose ◽  
Stephan Staudacher ◽  
Karl Engel
Keyword(s):  
Pressure Wave ◽  
Pressure Field ◽  
Wave Interaction ◽  
Turbine Rotor ◽  
Point Of View ◽  
Lagrangian Analysis ◽  
Turbine Efficiency ◽  
Work Concept ◽  
Work Mechanism ◽  
Lp Turbine

Recent publications have demonstrated the influence of unsteady work terms on the inviscid recovery of wake momentum. So far, this so-called wake differential work effect was only validated based on selected locations and time steps in turbine rotors. The magnitude of this effect over a whole blade passing cycle and the local unsteady work mechanisms causing it are still not fully understood. Using a numerical simulation, the unsteady static pressure field of a turbine rotor is assessed. Three regions are identified in which work is transfered unsteadily to the fluid, caused by the fluid interaction with the unsteady rotor pressure field. A Lagrangian analysis is performed to validate and quantify the wake differential work concept. To be representative, a large number of wake and free stream fluid particle paths are evaluated. Overall, a 7 per cent lower wake work in the rotor is identified, averaged over a whole blade passing cycle. From a particle point of view, the rotor pressure field acts as a pressure wave propagating in circumferential direction. Due to inviscid unsteady work, this pressure wave influences the stagnation enthalpy of the fluid particles. It is shown that this effect is more dominant for wake fluid, as the wake velocity is closer to the propagation velocity of the pressure wave. A mathematical model of this so-called “wake surfing effect” and the two other unteady work mechanisms reveals how the wake momentum is recovered depending on the initial wake velocity vector. If exploited well, this unsteady work mechanism could cause a reduction of wake mixing loss, leading to an increased turbine efficiency.

Application of the Ground Penetrating Radar in the Quality Detection of Tunnel Lining

2011 ◽  
Vol 243-249 ◽  
pp. 5381-5385 ◽  
Author(s):  
Ji Shun Pan ◽  
Lei Yang ◽  
Yuan Bao Leng ◽  
Zhi Quan Lv
Keyword(s):  
Data Processing ◽  
Ground Penetrating Radar ◽  
Tunnel Lining ◽  
Quality Detection ◽  
Steel Bar ◽  
Data Processing Method ◽  
Work Mechanism ◽  
Important Means ◽  
Working Principle ◽  
Ground Penetrating

Based on the ground penetrating radar's work mechanism, this article briefly introduces the working principle and the data processing method of ground penetrating radar detecting the tunnel lining. In view of the lining quality detection's characteristics, it summarizes a series of atlas reflection characteristic of the examination target such as the lining thickness, the backfill quality, the steel bar reinforcement situation, the adjacent formation structural feature and so on, and analyses and comments on them with project examples. The research believes that under appropriate working condition, as an important means to guarantee the construction security and maintain the tunnel health, ground penetrating radar technology can examine the lining quality fast and effectively, and meet the needs of the tunnel lining quality detection with suitable equipment, working method and data processing plan.

The Computerized Simulation Software Development of the Bidirectional Pneumatic Hammer

2011 ◽  
Vol 90-93 ◽  
pp. 1345-1350
Author(s):  
Qing Shan Xiong ◽  
Yong Sheng Ye ◽  
Shuang Liang Liu ◽  
Jia Li ◽  
Fan Jiu Kong
Keyword(s):  
Simulation Software ◽  
Object Oriented Programming ◽  
Pneumatic Hammer ◽  
Development Environment ◽  
Drilling Tool ◽  
Air Chamber ◽  
Work Mechanism ◽  
Computerized Simulation ◽  
Push Out ◽  
Normal Work

During the construction for solving geological hazard of landslide, there often existed the accidents of sticking pipe and burying drilling caused by borehole collapse. It resulted that drilling tool couldn’t be pulled out, and scraped the drilling tool and borehole. So it was necessary to research a kind of pneumatic hammer which could realize drilling at normal work, and push out the drilling tool by reverse impact when the formation collapse caused sticking pipe and bury drilling. In order to research profoundly the pneumatic hammer work mechanism and describe piston movement laws in detail, physical model was established according to the actual conditions, finite difference method was adopted, thermodynamics and kinematics were applied. Using object-oriented programming, the bidirectional pneumatic hammer software was developed whose integrated development environment was VB. The software could calculate acceleration, velocity, displacement, pressure, temperature of the front and back air chamber at any time and the operating performance parameters of the pneumatic hammer. Not only the bidirectional pneumatic hammer, but also the unidirectional pneumatic DTH hammer and the no-dig impactor were designed by the software.

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