Modular Indirect Push-Button Formal Verification of Multi-threaded Code Generators

2019 ◽  
pp. 410-429
Author(s):  
Anton Wijs ◽  
Maciej Wiłkowski
Keyword(s):  
Formal Verification ◽  
Push Button ◽  
Code Generators

A Newly Designed 650kv Electron Microscope

1968 ◽  
Vol 26 ◽  
pp. 304-305
Author(s):  
K. Shiraishi ◽  
T. Katsuta ◽  
S. Ozasa ◽  
H. Todokoro
Keyword(s):  
Electron Microscope ◽  
High Voltage ◽  
Bright Field Image ◽  
Bright Field ◽  
Push Button ◽  
Condenser Lens ◽  
High Voltage Generator ◽  
Frequency Power ◽  
Better Than ◽  
Illuminating System

We have recently completed a newly designed 650KV electron microscope. An external view of this advanced instrument is shown in Figure 1. A symmetrical Cockcroft-Walton circuit has been adopted as the high voltage generator. The cathode is heated by high frequency power; a battery is not employed. The high voltage stability is better than 1 x 10-5/min.The sectional diagram of the column shown in Figure 2 is 420mm in diameter and 2750mm in height. The illuminating system consists of a double condenser lens and a magnetic alignment device. Dual deflector assemblies for dark and bright field images, selectable by push button, are built beneath the condenser lens. Two selectable stigmator power supplies are also provided for dark and bright field image operation.

Small-Angle Electron Scattering (SAES) of Polymers

1985 ◽  
Vol 43 ◽  
pp. 78-79
Author(s):  
Ralph Oralor ◽  
Pamela Lloyd ◽  
Satish Kumar ◽  
W. W. Adams
Keyword(s):  
Electron Scattering ◽  
Small Angle ◽  
Angular Resolution ◽  
Structural Features ◽  
Objective Lens ◽  
High Angular Resolution ◽  
Push Button ◽  
First Case ◽  
Diffraction Mode ◽  
Very High

Small angle electron scattering (SAES) has been used to study structural features of up to several thousand angstroms in polymers, as well as in metals. SAES may be done either in (a) long camera mode by switching off the objective lens current or in (b) selected area diffraction mode. In the first case very high camera lengths (up to 7Ø meters on JEOL 1Ø ØCX) and high angular resolution can be obtained, while in the second case smaller camera lengths (approximately up to 3.6 meters on JEOL 1Ø ØCX) and lower angular resolution is obtainable. We conducted our SAES studies on JEOL 1ØØCX which can be switched to either mode with a push button as a standard feature.

Formal Verification of Control System Software

2019 ◽  
Author(s):  
Pierre-Loïc Garoche
Keyword(s):  
Control System ◽  
Formal Verification ◽  
Formal Analysis ◽  
Critical Systems ◽  
System Software ◽  
Unified Approach ◽  
Verification Methods ◽  
Autonomous Cars ◽  
Computer Scientists ◽  
Verification Techniques

The verification of control system software is critical to a host of technologies and industries, from aeronautics and medical technology to the cars we drive. The failure of controller software can cost people their lives. This book provides control engineers and computer scientists with an introduction to the formal techniques for analyzing and verifying this important class of software. Too often, control engineers are unaware of the issues surrounding the verification of software, while computer scientists tend to be unfamiliar with the specificities of controller software. The book provides a unified approach that is geared to graduate students in both fields, covering formal verification methods as well as the design and verification of controllers. It presents a wealth of new verification techniques for performing exhaustive analysis of controller software. These include new means to compute nonlinear invariants, the use of convex optimization tools, and methods for dealing with numerical imprecisions such as floating point computations occurring in the analyzed software. As the autonomy of critical systems continues to increase—as evidenced by autonomous cars, drones, and satellites and landers—the numerical functions in these systems are growing ever more advanced. The techniques presented here are essential to support the formal analysis of the controller software being used in these new and emerging technologies.

PROTOTIPE MESIN PENYEDUH MINUMAN KOPI OTOMATIS MENGGUNAKAN ARDUINO UNO

2018 ◽  
Vol 23 (2) ◽  
pp. 116-123
Author(s):  
Manarul Hidayat
Keyword(s):  
Push Button ◽  
Arduino Uno

Minuman kopi diminati oleh hampir semua golongan masyarakat saat ini sebagai gaya hidup seperti tempat berkumpul, tempat mengerjakan tugas atau sebagai tempat rapat rekan bisnis di kedai kopi. Di zaman modern ini, seiring dengan tingginya kesibukan masyarakat dalam dunia kerja banyak orang yang dituntut untuk melakukan tugas atau pekerjaan dengan cepat dan tepat waktu, sehingga mereka akan sangat sibuk dan kebanyakan dari mereka memanfaatkan waktu istirahat yang sebentar untuk menikmati secangkir kopi. Prototipe yang dirancang pada penelitian ini merupakan sebuah alat yang bekerja berdasarkan push button. Kondisi push button memiliki beberapa tahapan. Tahapan tersebut meliputi ketika tombol ditekan maka servo akan bergerak untuk menuangkan gula dan kopi. Tahapan berikutnya air panas akan mengalir melalui pompa air dari pemanas air ke dalam gelas dengan menggunakan selang. Prototipe ini dapat berjalan dengan baik dengan 3 buah tegangan input 5V dan arus 2A untuk Arduino, 12V dan arus 2A, 220VAC untuk pemanas air.

HOL2GDT a Formal Verification-Based Design Methodology

2001 ◽  
Author(s):  
Anand Chavan ◽  
Byoung Woo Min ◽  
Shiu-Kai Chin
Keyword(s):  
Formal Verification ◽  
Design Methodology
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