The Dot Operator

The infinite system of differential equations for the nonequilibrium Green functions of electrons in a single-level quantum dot connected with two conducting leads is truncated by applying the mean-field approximation to the mean values of the products of four operators. As the result the system of Dyson equations for the two-point real-time nonequilibrium Green functions in the Keldysh formalism as well as that of the two-point imaginary-time Green functions are derived.

13p 12120609 01-06-2020 15 1   Download

Investigate theoretically quantum transport through the “charge” Kondo circuit consisting of the quantum dot (QD) coupled weakly to an electrode at temperature T + ∆T and connected strongly to another electrode at the reference temperature T by a single-mode quantum point contact (QPC). To account for the effects of Coulomb interaction in the QD-QPC setup operating in the integer quantum Hall regime we describe the edge current in the quantum circuit by Luttinger model characterized by the Luttinger parameter g. I

10p 12120609 23-03-2020 17 0   Download

Single electron transistor (SET) is a key element in current research area of nanoelectronics and nanotechnology which can offer nano-feature size, low power consumption and high operating speed. SET is a new nanoscale switching device. It can control the motion of the single electron. The goal of this paper is to discuss about some physical properties of the SET and focuses on simulation of basic quantum device characteristics such as tunneling effect, Coulomb blockage, Quantum dot, Coulomb staircase, and Coulomb oscillation.

8p gildur 30-11-2019 26 0   Download

(BQ)  C++ programming for Game (Module I) has 9 chapter: Chapter 1 - Introducing C++, Chapter 2 - Logic, conditionals, loops and arrays, Chapter 3 - Functions, Chapter 4 - References and pointers, Chapter 5 - Classes and object oriented programming, Chapter 6 - Strings and other topics, Chapter 7 - Operator overloading, Chapter 8 - File input and output, Chapter 9 - Inheritance and polymorphism.

314p hoangthienuit 04-06-2015 55 12   Download

Custom incentives include measures that result in a reduction in electric and/or natural gas energy usage because of an improvement in system efficiency, i.e., a net decrease in energy use without a reduction in the level of service. Installing a lower wattage lamp in place of a higher wattage lamp of the same type will not qualify for an incentive; however, should the lighting system (i.e., lamp, ballast and fixture) demon- strably improve the total lumens per watt delivered, an incentive will be considered.

83p bi_ve_sau 05-02-2013 27 2   Download

Image quality – Measured in dots per inch (dpi). Most printers produce 300 – 600 dpi. Speed – Measured in pages per minute (ppm) or characters per second (cps). Initial cost – Consumer printers cost $250 or less, but professional printers can cost thousands of dollars. Cost of operation – This refers to the cost of supplies

0p trada85 18-01-2013 36 3   Download

A common misconception in the Mac community is that Mac's operating system is more secure than others. While this might be true in certain cases, security on the Mac is still a crucial issue. When sharing is enabled or remote control applications are installed, Mac OS X faces a variety of security threats. Enterprise Mac Security: Mac OS X Snow Leopard is a definitive, expert-driven update of the popular, slash-dotted first edition and was written in part as a companion to the SANS Institute course for Mac OS X.

646p stingdau_123 18-01-2013 45 6   Download

Once an object has been instantiated, we can use the dot operator to invoke its methods title.length(); Note: A method may return a value or not Example: String s = new String(“Hello"); int count = s.length(); System.out.println("Length of s is " + count);

63p batman_1 10-01-2013 50 3   Download

Phần mềm độc hại (malware) có thể lén chui vào BIOS trong máy tính rồi tự kích hoạt trước khi bất cứ phần mềm chống malware nào có cơ hội dò tìm ra. Vì vậy, bạn nên thiết lập mật khẩu cho BIOS. Bạn có thể rất ít khi để ý đến việc “tương tác” với hệ thống xuất/nhập cơ bản BIOS trên máy tính (BIOS – Basic Input/Output Operating System), nhưng thực ra BIOS chiếm một vị trí đặc quyền và duy nhất trong kiến trúc máy tính. .BIOS được xem là chương trình chạy đầu tiên khi máy tính...

4p kmkmkmkmkm 07-09-2012 60 1   Download

Module II is the second course in the C++ Programming for Game Developers series. Recall that in Module I we started off by studying fundamental programming concepts like variables, console input and output, arrays, conditional statements, strings, loops, and file input and output. We then pursued higher level programming methodologies such as classes, object oriented programming design, operator overloading, inheritance, and polymorphism. By now you should feel competent with the fundamentals and at least comfortable with the higher level subject matter...

315p tailieuvip13 20-07-2012 101 14   Download

C++ is a powerful language that unifies high-level programming paradigms, such as object oriented programming, with low-level efficiencies, such as the ability to directly manipulate memory. For these reasons, C++ has been embraced as the language of choice among game developers.

259p tailieuvip13 20-07-2012 83 14   Download

Các operon có tồn tại ở eukaryote nào? Nêu các đặc điểm giống và khác nhau giữa các operon ở một số eukaryote với các prokaryote, và cho biết ý nghĩa của hiện tượng đó. 8. Hiệu quả có thể có của các đột biến trong mỗi thành phần sau đây của operon vi khuẩn là gì? (a) Operator; (b) Promoter; (c) Protein ức chế; (d) Các gene cấu trúc. 9. Phải chăng protein ức chế của operon là một protein cảm ứng, ức chế hoặc cơ định (constitutive)? Tại sao? 10. Phân tích một cơ chế điều hoà dịch...

23p myxaodon07 01-06-2011 131 35   Download

The introduction of robots into modern industry is strongly connected with production automation where robots are used for material and parts manipulation and direct manipulation of tools in a technological process. Implementation of robots decreases production costs, increases productivity, assures the quality of production, and can replace employees at hard and dangerous operations.

9p phamtang 19-04-2011 114 9   Download

INDEX decrement (--) operator, 50 default keyword, 61 define(), 345 DELETE command, 355, 375 syntax of, 380 WHERE clause, 380 Delete icon, 455 deprecated, 46 DESC keyword, 316 tag, 205, 208 die(), 307–309 diff(), 406 DIRECTORY_SEPARATOR, 223 DirectoryIterator class, 202 looping through the contents of a directory or folder, 196 displaying filename extensions in Windows, 11 DISTINCT option, 377 do . . . while loop dowhile.php, 62 syntax of, 62 DOCTYPE, 80, 86 document-relative path, 100 dot files, 196 download.

10p yukogaru14 30-11-2010 86 13   Download

Vector and matrix concepts have proved indispensable in the development of the subject of dynamics. The formulation of the equations of motion using the Newtonian or Lagrangian approach leads to a set of second-order simultaneous differential equations. For convenience, these equations are often expressed in vector and matrix forms. Vector and matrix identities can be utilized to provide much less cumbersome proofs of many of the kinematic and dynamic relationships. In this chapter, the mathematical tools required to understand the development presented in this book are discussed briefly.

20p tieutaithan 22-11-2010 171 4   Download

Các đột biến ở các promoter và operator Nói chung, các đột biến ở các vùng kiểm soát, chẳng hạn các promoter và operator, thường chỉ ảnh hưởng lên DNA mà chúng khu trú; các đột biến này không tác động lên các vùng định khu trên các phân tử DNA khác (khi nòi vi khuẩn xét đến là thể lưỡng bội một phần, merodiploid). Chúng được gọi là các thể đột biến trội cis.

10p heoxinhkute5 16-11-2010 145 9   Download

Terminology and Abbreviations biles are even programmed to adjust engine operation for things like valve wear and combustion chamber deposit buildup as the engine ages. In automobiles the same computers are used to make smart cars by controlling the steering, brakes, exhaust system, suspension, seats, anti-theft systems, sound-entertainment systems, shifting, doors, repair analysis, navigation, noise suppression, environment, comfort, etc. On some systems engine speed is adjusted at the instant when the transmission shifts gears, resulting in a smoother shifting process.

20p hiruscar 25-10-2010 114 8   Download

Các đột biến ở các promoter và operator Nói chung, các đột biến ở các vùng kiểm soát, chẳng hạn các promoter và operator, thường chỉ ảnh hưởng lên DNA mà chúng khu trú; các đột biến này không tác động lên các vùng định khu trên các phân tử DNA khác (khi nòi vi khuẩn xét đến là thể lưỡng bội một phần,(merodiploid). Chúng được gọi là các thể đột biến trội cis.

9p heoxinhkute1 06-08-2010 97 9   Download