VCard（维卡/51vcard）是由美股上市公司悦商集团（WETG.US）发起的虚拟信用卡平台，支持USDT充值并直接作为美元消费，为用户 ...

This Openfire plugin annotates packets with information from the vCard. It adds the hash of the PHOTO field of a user's vCard to all its outgoing presence packets, according to XEP-0153 (vCard-based ...

Abstract: Reliable and efficient trajectory generation methods are a fundamental need for autonomous dynamical systems. The goal of this article is to provide a comprehensive tutorial of three major ...

Abstract: By integrating a nearly infinite number of reconfigurable elements into a finite space, a spatially continuous array aperture is formed for holographic multiple-input multiple-output (HMIMO) ...

Learn the benefits and risks of options and how to start trading options Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. Samantha (Sam) Silberstein, CFP®, CSLP®, ...

Most Android phones ship with Google apps and services pre-installed, and that makes it very easy and seamless to transfer contacts. All you have to do is ensure that your Google account is set to ...