Feshbach Resonance and Growth of a Bose-Einstein Condensate

Gross-Pitaevskii equation with gain is used to model Bose Einstein condensation (BEC) fed by the surrounding thermal cloud. It is shown that the number of atoms continuously injected into BEC from the reservoir can be controlled by applying the external magnetic field via Feshbach resonance.Comment: 4 page

Lossy/Lossless Floating/Grounded Inductance Simulation Using One DDCC

In this work, we present new topologies for realizing one lossless grounded inductor and two floating, one lossless and one lossy, inductors employing a single differential difference current conveyor (DDCC) and a minimum number of passive components, two resistors, and one grounded capacitor. The floating inductors are based on ordinary dual-output differential difference current conveyor (DO-DDCC) while the grounded lossless inductor is based one a modified dual-output differential difference current conveyor (MDO-DDCC). The proposed lossless floating inductor is obtained from the lossy one by employing a negative impedance converter (NIC). The non-ideality effects of the active element on the simulated inductors are investigated. To demonstrate the performance of the proposed grounded inductance simulator as an example, it is used to construct a parallel resonant circuit. SPICE simulation results are given to confirm the theoretical analysis

Borrowing Goods Listed Applications Using Visual Basic 6.0

With advances in both computer hardware and software, especially in Indonesia, it is expected that progress can be helpful in dealing with problems that are still done manually. Rental listing application process is performed in the computer stuff is very helpful, because the program listing of rental items include input data, edit data, display data, and security programs. The program listing applications made to the borrowing of goods can be used easily without the use of manuals. This application is made with the aid of Microsoft Visual Basic 6.0 softwar

Biography Website Design Applications Using Microsoft Chrisye Frontpage 2003

Media informasi merupakan sarana untuk menyampaikan suatu berita atauinformasi yang dapat kita terima baik secara lisan maupun tulisan, dan beragamjenisnya seperti koran, televise, radio, dan komputer. Informasi memegangperanan yang sangat penting bagi kehidupan manusia. Informasi yangdibutuhkan tentunya adalah informasi yang sangat cepat, akurat, dan dapatdipertanggungjawabkan keasliannya oleh kalangan orang banyak terutama untukkeperluan bisnis, hiburan, serta berbagai informasi lainnya. Internet merupakansebuah kumpulan global (mendunia) ribuan jaringan komputer dan jutaankomputer pribadi yang dikelola secara bebas. Internet mudah digunakan olehsiapa pun, bahkan mereka yang hanya memiliki kemampuan yang minim. Webmerupakan suatu penyampaian informasi yang menggunakan teknologi internet.Dengan web, kita dapat berinteraksi dalam ruang yang luas. Sampai saat ini,website sangat popular, namun dalam penggunaannya dibutuhkan suatu desain

All-Pass Sections with High Gain Opportunity

In this paper, two new circuits for realizing firstorder voltage-mode (VM) all-pass section (APS) with variable gain are presented. The first proposed filter uses a single differential difference current conveyor (DDCC), one grounded capacitor and three resistors. The second proposed filter consists of two DDCCs, three grounded resistors and one grounded capacitor. It provides highinput and low-output impedances and can provide high gain. Both of the proposed circuits do not require any element matching condition. Moreover, oscillator circuits with minimum number of active and passive elements are derived from the proposed APSs. The proposed circuits are tested experimentally or by simulation using SPICE program to confirm the theory

Inverted Oscillator

The inverted harmonic oscillator problem is investigated quantum mechanically. The exact wave function for the confined inverted oscillator is obtained and it is shown that the associated energy eigenvalues are discrete and it is given as a linear function of the quantum number $n$.Comment: 4 page