The Telephone and Telephone Exchanges: their Invention and Development

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Invention of the Telephone

This case study analyzes the invention of the telephone by Alexan-der Graham Bell. But to understand this act of creative design, we have to analyze Bell's earlier research goals. We abstract Bell's research method and the reasoning mechanisms he used that appear time and again in long-term creative problem solving and design. 1 Case Study This case study analyzes some important reasoning steps...

متن کامل

the relationship between learners critical thinking ability and their performance in the reading sections of the tofel and ielts test

the study reflected in this thesis aims at finding out relationships between critical thinking (ct), and the reading sections of tofel and ielts tests. the study tries to find any relationships between the ct ability of students and their performance on reading tests of tofel and academic ielts. however, no research has ever been conducted to investigate the relationship between ct and the read...

15 صفحه اول

the survey of the virtual higher education in iran and the ways of its development and improvement

این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.

Telephone Conversation Closing Structure Across English and Persian

Due to the lack of paralinguistic information, politeness gains a considerable significance in telephone conversations (TCs). The use of politeness strategies can help interlocutors promote and/or maintain social harmony in telephone interactions. Using the Rapport Management Model proposed by Spencer-Oatey (2008), this study intended to primarily investigate the fundamental closing structures ...

متن کامل

Development and Evaluation of the Telephone Crisis Support Skills Scale.

BACKGROUND Although telephone services continue to play an important role in the delivery of front-line crisis support, published evidence of the standardized assessment of such services does not exist to date. AIMS To describe the development of the Telephone Crisis Support Skills Scale (TCSSS), an instrument to assess workers' intentions to use recommended skills with callers, and to evalua...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nature

سال: 1916

ISSN: 0028-0836,1476-4687

DOI: 10.1038/098188a0