Results 61 to 70 of about 13,765 (198)

NFT：基于区块链的非同质化通证及其应用

智能科学与技术学报, 2021
基于区块链的非同质化通证（NFT）是一种记录在区块链上的数字资产所有权，具有唯一性、不可替代性、不可分割性等特征。作为智能经济中的核心要求，NFT目前已被广泛应用于收藏品、加密艺术品和游戏中。首先介绍NFT的相关概念、特征和发展历程，分析NFT的核心要素和典型应用领域，并指出目前NFT在产权、价值、技术、监管等方面面临的问题与风险；然后介绍NFT的研究现状，并在此基础上提出NFT在价值评估、交易模式与定价机制方面的研究问题；最后对NFT驱动的数字资产化趋势进行展望。
秦蕊, 李娟娟, 王晓, 朱静, 袁勇, 王飞跃   +5 more
doaj  

Reference values of nuchal fold thickness in an Iranian population sample

Journal of Research in Medical Sciences, 2018
Background: Considering that ethnicity and gestational age (GA) could affect the value of nuchal fold thickness (NFT) in mid-trimester, we aimed to determine the reference intervals of NFT values for each gestational week from 16 to 24 weeks of pregnancy
Kimia Kazemi, Atoosa Adibi, Silva Hovsepian   +2 more
doaj   +1 more source

Rights in NFTS and the flourishing of NFT marketplaces

International Journal of Law and Information Technology
Abstract As non-fungible tokens (NFTs) become more commonly collected, questions arise as to the rights owned by purchasers of NFTs. Do NFTs fall under the following categories: real or personal properties; securities or commodities; or copyright works?
openaire   +2 more sources

Ultra‐Thin Bipoly Solar Cells With Front Selective n$$ n $$‐Type TOPCon and Rear Blanket p$$ p $$‐Type TOPCon Layers

Progress in Photovoltaics: Research and Applications, EarlyView.
Large area crystalline silicon solar cells fabricated on ultra‐thin (80 μ$$ \upmu $$m) Si wafer featuring polysilicon‐based passivating contacts on both sides can further increase the energy output per unit weight. In this work, the large area, screen‐printed solar cells with high temperature fire‐through contacts, yielded an exceptional efficiency‐to ...
Yuchi Lan, John Derek Arcebal, Gabby De Luna, Pradeep Padhamnath, Armin Gerhard Aberle, Aaron Danner   +5 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

EFFECT OF IRRIGATION SCHEDULING AND PLANT DENSITY ON PRODUCTIVITY AND QUALITY OF STRAWBERRY GROWN IN WATER CULTURE [PDF]

Arab Universities Journal of Agricultural Sciences, 2016
The experiment was carried out at the experimental site of Arid Land Agricultural graduate studies and Research Institute (ALARI), Faculty of Agriculture, Ain Shams University, Qalyobia Governorate during the two successive seasons of 2013/2014 and 2014 ...
W.A El-Malky
doaj   +1 more source

Maximizing the Economic, Environmental, and Social Impact of the Metaverse

Thunderbird International Business Review, EarlyView.
ABSTRACT The metaverse is a transformative digital ecosystem with the potential to redefine economic, environmental, and social systems. This qualitative study examines how the metaverse and its enabling technologies—such as AR/VR, blockchain, and AI—might evolve to influence sustainability. Drawing on semi‐structured interviews with global experts and
Alessandro Lanteri, Mark Esposito, Massimiliano Cappuccio   +2 more
wiley   +1 more source

Begetting Silvio Gesell in the Modern Economy: A Marriage of Frederick Soddy and Kenneth Boulding

The American Journal of Economics and Sociology, EarlyView.
ABSTRACT In the Natural Economic Order, first published in 1916, Silvio Gesell warned against a fiat monetary system that in place of controlling the circulation of money with demurrage, sought to manage the system by accommodating demand for liquidity.
Ahmed Anwar
wiley   +1 more source

Developing Predictive and Explainable Models for Cryptocurrency Delistings: A Case Study of Binance Exchange

Asia-Pacific Journal of Financial Studies, EarlyView.
Abstract This study develops an explainable machine learning model to predict cryptocurrency delistings using Binance data. It combines quantitative indicators (price, volume) with qualitative data from real‐time news and Reddit. Latent Dirichlet Allocation (LDA) is used to extract topic trends and community reactions, which are transformed into time ...
Sungju Yang, Hunyeong Kwon
wiley   +1 more source

Between Cryptocurrencies' Risk and Crypto Environmental Attention: The Crypto Environment Attention Index and Volatility in the Cryptocurrencies Market Nexus

Business Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT This study investigates the impact of environmental attention on cryptocurrency market volatility by introducing the Crypto Environmental Attention Index (CEAI), a new metric inspired by Wang et al. (2022) and constructed using daily web search data.
Ines Ghazouani, Zaineb Hlioui, Marwa Zouawi   +2 more
wiley   +1 more source