Notes and Records at 75

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

Math 75 NOTES on finite fields

Suppose F is a finite field with q elements and F is a subfield of L, which as an F -vector space, has dimension d. We say that d is the degree of the field extension L over F , and we write [L : F ] = d. We see that this occurs if M ∈ F [x] is irreducible of degree d and L = F [x]/(M). In this case we identify the field F with the subfield of L consisting of constant polynomials. Suppose that ...

متن کامل

Annotated Checklist of Rotifers of Tehran Province, Iran, with Notes on New Records

Despite rapid growth of our knowledge on the phylum Rotifera, only few studies on Iranian rotifers have been carried out. In this paper, we present a checklist of rotifers from the province of Tehran in Iran. In total, 45 species of rotifers (class Eurotatoria) are reported. Most of the recorded species are cosmopolitan in distribution. Cephalodella ventripes, Dicranophorus forcipatus, D. luetk...

متن کامل

Space Weather at 75 AU

Recent outer-heliosphere observations are reviewed from a space weather point of view by comparing the nature of solar wind, solar particle, and cosmic ray variations at the Voyagers and 1 AU. While the Sun still controls the interplanetary medium at 75 AU, the nearby boundaries of the heliosphere exert a strong influence on the environment.

متن کامل

The notes from nature tool for unlocking biodiversity records from museum records through citizen science

Legacy data from natural history collections contain invaluable and irreplaceable information about biodiversity in the recent past, providing a baseline for detecting change and forecasting the future of biodiversity on a human-dominated planet. However, these data are often not available in formats that facilitate use and synthesis. New approaches are needed to enhance the rates of digitizati...

متن کامل

INTEGRATED SSFIP-HORN ANTENNA AT 75 GHz

We present in this paper an integrated ca ̈ity-backed patch antenna operating at 75 GHz. The design was optimized using a full-wa ̈e software based on the integral-equation method. The antenna was realized using micromachining technologies on two wafers: a silicon one supporting a membrane and a radiating patch, and a Pyrex one constituting the feeding element. The measurements are in good agreem...

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: Notes and Records: the Royal Society Journal of the History of Science

سال: 2012

ISSN: 0035-9149,1743-0178

DOI: 10.1098/rsnr.2012.0069