GRIDCC: Real-time workflow system

The Grid is a concept which allows the sharing of resources between distributed communities, allowing each to progress towards potentially different goals. As adoption of the Grid increases so are the activities that people wish to conduct through it. The GRIDCC project is a European Union funded project addressing the issues of integrating instruments into the Grid. This increases the requirement of workflows and Quality of Service upon these workflows as many of these instruments have real-time requirements. In this paper we present the workflow management service within the GRIDCC project which is tasked with optimising the workflows and ensuring that they meet the pre-defined QoS requirements specified upon them

Bandwidth Enhancement in Microstrip Patch Antenna Using Rhombus Shape Slot

The Microstrip antennas are the low profile radiators. It is so because of their numerous features such as low volume, compactness, low fabrication cost and mechanical robustness. Numerous techniques have been suggested to improve the Microstrip patch antenna characteristics. In this paper we discuss the slot coupled patch antenna, one with a rectangular patch and other one with a rhombus shaped patch. And study the antenna characteristics of both the antenna such as bandwidth, radiation loss and gain. The results indicate the impact of changing patch on the antenna performance. To excite the structure the microstrip line is placed below the slot. The slot is made between the feed line and the radiating patch substrate. Fields from the microstrip line will be coupled to the patch through this narrow slot. ANSYS HFSS is used to carry out the procedure DOI: 10.17762/ijritcc2321-8169.150313

From Cavity Electromechanics to Cavity Optomechanics

We present an overview of experimental work to embed high-Q mesoscopic mechanical oscillators in microwave and optical cavities. Based upon recent progress, the prospect for a broad field of "cavity quantum mechanics" is very real. These systems introduce mesoscopic mechanical oscillators as a new quantum resource and also inherently couple their motion to photons throughout the electromagnetic spectrum.Comment: 8 pages, 6 figures, ICAP proceedings submissio

Subthalamic Nucleus Deep Brain Stimulation in Parkinson's Disease: Valuable Programming Insights from Anecdotal Observations

In this article, we use a case to illustrate and discuss some practically important learning points about programming subthalamic nucleus deep brain stimulation for Parkinson’s disease patients and highlight clinically relevant issues resulting from anatomical and device-related anomalies. These include the phenomenon of a dominant subthalamic nucleus, clinical variability with delayed response to stimulation, equivalence of electrical charge when using short-pulse settings, and issues regarding conversion of settings between constant-current and constant-voltage devices that are increasingly common with the use of device components from multiple manufacturers

Identifikasi Miskonsepsi Siswa Kelas XI IPA 1 di SMA Negeri 3 Gorontalo Utara pada Konsep Larutan Penyangga

Penelitian ini merupakan penelitian deskriptif, yang bertujuan untuk mengidentifikasi miskonsepsi siswa terhadap konsep larutan penyangga. Penelitian ini dilakukan pada siswa kelas XI IPA 1 di SMA Negeri 3 Gorontalo Utara menggunakan tes piihan ganda (multiple choice) dengan alasan terbuka. Instrumen ini dapat membedakan antara siswa yang tahu konsep, tidak tahu konsep dan miskonsepsi. Pengamblan sampel dilakukan dengan cara sampling jenuh. Hasil penelitian secara keseluruhan menunjukkan bahwa miskonsepsi siswa kelas XI IPA 1 di SMA Negeri 3 Gorontalo Utara pada konsep larutan penyangga berada pada kategori tinggi yaitu nilai rata-rata sebesar 44,17%, tahu konsep nilai rata-rata 10,8%, tahu konsep tetapi kurang yakin nilai rata-rata 2,13% dan tidak tahu konsep nilai rata-rata sebesar 42,9%

Quantum interference in optical fields and atomic radiation

We discuss the connection between quantum interference effects in optical beams and radiation fields emitted from atomic systems. We illustrate this connection by a study of the first- and second-order correlation functions of optical fields and atomic dipole moments. We explore the role of correlations between the emitting systems and present examples of practical methods to implement two systems with non-orthogonal dipole moments. We also derive general conditions for quantum interference in a two-atom system and for a control of spontaneous emission. The relation between population trapping and dark states is also discussed. Moreover, we present quantum dressed-atom models of cancellation of spontaneous emission, amplification on dark transitions, fluorescence quenching and coherent population trapping.Comment: To be published in Journal of Modern Optics Special Issue on Quantum Interferenc