The Radiation Pattern on an Ultrasonic Focusing Radiator

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

Ant Colony Optimisation-based radiation pattern manipulation algorithm for Electronically Steerable Array Radiator Antennas

A new algorithm for manipulating the radiation pattern of Electronically Steerable Array Radiator Antennas is proposed. A continuous implementation of the Ant Colony Optimisation (ACO) technique calculates the optimal impedance values of reactances loading different parasitic radiators placed in a circle around a centre antenna. By proposing a method to obtain a suitable sampling frequency of t...

متن کامل

Phased array ultrasonic imaging using an improved beamforming based total focusing method for non destructive test

One of the novel ultrasonic phased array based scanning methods for ultrasonic imaging in non-destructive test is total focusing method (TFM). This method employs maximum available information of the phased array elements and leads to an improved defect detection accuracy compared to conventional scanning methods. Despite its high detection accuracy, TFM behaves weak in distinguishing the real ...

متن کامل

Preparation of Structured Polymer Composites Using an Ultrasonic Focusing Technique

This research uses ultrasonic standing waves to arrange sub-micron size particles within polymeric materials in layered or stratified configurations. Such composites have the potential to exhibit unique mechanical and transport properties. Through the combination of ultrasonics, polymer science, and particle science, it is hoped that a range of advanced thinfilm materials can be developed as ba...

متن کامل

Phased array ultrasonic imaging using an improved beamforming based total focusing method for non destructive test

One of the novel ultrasonic phased array based scanning methods for ultrasonic imaging in non-destructive test is total focusing method (TFM). This method employs maximum available information of the phased array elements and leads to an improved defect detection accuracy compared to conventional scanning methods. Despite its high detection accuracy, TFM behaves weak in distinguishing the real ...

متن کامل

Focusing in on radiation induced brain injury

Cognitive dysfunction following cranial radiotherapy remains a significant clinical problem, particularly in patients receiving whole brain radiation and in children. This has prompted development of therapeutic strategies that spare regions involved in learning and memory, particularly the hippocampus, which contains a radiation-sensitive population of neural precursor cells that actively divi...

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: The Journal of the Acoustical Society of America

سال: 1947

ISSN: 0001-4966

DOI: 10.1121/1.1916599