TAT-1 (Transatlantic No. 1) was the first submarine transatlantic telephone cable system. It was laid between Kerrera, Oban, Scotland and Clarenville, Newfoundland. [1] Two cables were laid between 1955 and 1956 with one cable for each direction. [1] …

TAT-1 （Transatlantic No. 1）是第一条 跨大西洋电话电缆 （英语：Transatlantic telephone cable） 系统，位于 苏格兰 奧本 与 纽芬兰 克拉伦维尔 （英语：Clarenville） 之间。 [1] 该电缆系统在1955年至1956年间铺设了两条，每个方向一条。 它于1956年9月25日开始应用。 [2] 该电缆系统能够同时承载35门电话线路。 [3] 第36条信道用于承载22条 电报 线路。 第一条 跨大西洋电报电缆 在1858年被铺设（见 賽勒斯由西場 （英语：Cyrus West Field））。 [4] 它只运作了一个 …

2024年1月8日 · Global telephone communications began on 25 September 1956, when the first transatlantic telephone system, TAT-1 went into service. TAT-1 was a great technological achievement, made possible through the efforts of engineers …

TAT-1 (Transatlantic No. 1) was the first submarine transatlantic telephone cable system. It was laid between Oban, Scotland and Clarenville, Newfoundland. [1] Two cables were laid between 1955 and 1956. One cable for each direction. [1] It was inaugurated on September 25, 1956. [2] The cable was able to carry 35 simultaneous telephone calls. [3]

…such transatlantic telephone cable (TAT-1) was laid by a consortium that included the American Telephone & Telegraph Company (AT&T), beginning June 28, 1955, from Clarenville, on the island of Newfoundland in Canada, and reaching Oban, Scotland, on September 25, 1956. TAT-1 had an initial capacity of only 36 two-way… Read More

lantic telephone cable, TAT-1, which inaugurated the modern era of global communications. Over the last fifty years since TAT-1 went into service, the capacity of telephone cables has grown explosive-ly from the initial thirty-six voice-band channels to modern broad-band optical fiber systems, which can carry 100 million voice cir-cuits.

The first transatlantic submarine cable system, TAT-1, went into service on 25 September 1956. From then on, there have been the TAT series of transatlantic submarine cable systems, until the latest one TAT-14.

2024年10月7日 · TAT-1 (Transatlantic No. 1) was the first submarine transatlantic telephone cable system. It was laid between Oban, Scotland and Clarenville, Newfoundland. Two cables were laid between 1955 and 1956 with one cable for each direction.

1型 人免疫缺陷病毒转录激活因子TAT （human immunodeficiency virus-1 transcription activator， HIV-1 TAT）是第一个被发现的细胞穿透肽，它凭借一种无毒的、高效的方式进入细胞。 细胞穿透肽（cell penetrating peptides，CPPs）的一个重要特点是可以携带多种不同大小和性质的生物活性物质进入细胞，包括小分子化合物、染料、多肽、 多肽核酸 （peptide nucleo acid, PNA）、蛋白质、质粒DNA、siRNA、200nm的脂质体、噬菌体颗粒和超顺磁性粒子等，这一性质为其成为 …

HIV-1 Tat蛋白，即人类免疫缺陷病毒1型的转录激活因子，不仅是病毒复制的关键驱动者，也是研究人员关注的焦点之一，因为它的特殊性质可能为开发新型抗HIV策略提供新思路。 本文将深入了解 HIV-1 Tat蛋白肽 的合成方法，以及其在科研与治疗领域的潜力。 HIV-1 Tat蛋白肽：起源与作用. HIV-1 Tat蛋白肽由86个氨基酸组成，主要功能在于激活病毒基因转录，加速病毒粒子成熟和传播。 Tat肽的N端（特别是第1至55个氨基酸残基）包含一个强效的细胞穿透域（Cell …