The Thermionic Valve in Scientific Research.

نویسنده

  • A Fleming
چکیده

The Thermionic Valve in Scientific Research: Sm Scientific Books: AmBROSE FLEMING ...................... . ............................... ......... 625 Qu4antum Mechanics: DR. PAUL S. EPSTEIN. The Genetics of Garden Plants: DR. ALFRED E. CLARKE 640 The Electronic Theories of Lewis and Kossel: PRoFESSOR WILLIAM A. NoYES .................. 628 Scientific Apparatus and Laboratory Methods: Sand and Water Paradox: DR. ISAY A. BALNKIN 642 Obituaries: Special Articles: Lucian W. Chaney: PROFESSOR FRANZ F. ExNER. Molecular Rearrangements of Sulfanilides: PRoSamuel Henry Essary: PROFESSOR LUDWIG STOLZ FESSOR TREAT B. JOHNSON and MAURICE L. MOORE. MAYER. Recent Deaths ................................................................ 629 Isolation of a Crystalline Protein Possessing the

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Thermionic and Photo-Excited Electron Emission for Energy-Conversion Processes

*Correspondence: Timothy S. Fisher , Birck Nanotechnology Center, 1205 West State Street, West Lafayette, IN 47907, USA e-mail: [email protected] This article describes advances in thermionic and photo-emission materials and applications dating back to the work on thermionic emission by Guthrie (1873) and the photoelectric effect by Hertz (1893). Thermionic emission has been employed for elec...

متن کامل

Right sided heart evaluation after successful mitral valve replacement.

Introduction: It is well-documented that right-sided heart dysfunction and significant tricuspid valve regurgitation (TVR) have adverse effects on patient outcomes after left-sided heart valve surgery. Therefore, the evaluation of right ventriclular (RV) function and TR severity in patients who had undergone mitral valve replacement (MVR), associated with/without concomitant su...

متن کامل

Thermionic Energy Conversion Based on Graphene van der Waals Heterostructures

Seeking for thermoelectric (TE) materials with high figure of merit (or ZT), which can directly converts low-grade wasted heat (400 to 500 K) into electricity, has been a big challenge. Inspired by the concept of multilayer thermionic devices, we propose and design a solid-state thermionic devices (as a power generator or a refrigerator) in using van der Waals (vdW) heterostructure sandwiched b...

متن کامل

Trans-catheter Bioprosthetic Heart Valve Implantation in Iran (Tehran Heart Centre Experience)

Introduction: With the development of interventional cardiology in the world, in addition to coronary and aortic diseases, the treatment of heart valve diseases through catheters has recently begun. The treatment of aortic stenosis (which was only possible with open surgery and valve replacement) was first performed in the world in 2002 by Alain Cribier in France with catheter insertion of the ...

متن کامل

Analysis of the safety effectiveness of methane gas valve pits: A Case Study in the Steel Industry Based on Hazardous Areas Classification

Introduction: Methane is one of the most widely used gases in industries with a high flammability potential. This study aimed to evaluate the efficiency of ventilation systems installed on methane valve pits based on hazardous areas classification. Material and Methods: This study was implemented in a steel industry in Qom Province in 2019. The tools used in this study were a DELTA OHM pitot t...

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

عنوان ژورنال:
  • Science

دوره 81 2113  شماره 

صفحات  -

تاریخ انتشار 2005