IMPLEMENTATION BLUETOOTH LOW ENERGY ON THE MEDICAL SUPPORTING DEVICE

Non-compliance from a patient is a serious problem, with a big consequence in case of health and costs. ECCT B.V. tries to develop some supporting devices expected to help patients to report their compliance. One of these supporting devices is a dispenser. These devices record data about time and other clinically relevant information. The electronic circuit also contains RFID technology, it is possible for Near Field Communication (NFC) enabled mobile telephone or a NFC reader to take the stored data. If we compare Bluetooth with NFC, Bluetooth has an advantage in range, Bluetooth has wider range than NFC. When the dispenser starts using BLE, there is no need for us to make the dispenser close to BLE enabled mobile phone or reader, we can separate it in some distance. The antenna design was done by using CST Microwave Studio 2009, provided by Fontys Hogescholen. In this project, author uses printed Inverted F Antenna as the antenna. Inverted F Antenna has some advantages and also fulfills the requirements for transmitting and receiving data. From the simulation we can find out there is 7 parameters affected on the antenna performance. Length is one of the parameters affected to the antenna resonant frequency. From the measurement result, Bluetooth Low Energy for “Firefly” can reach 10 meters range and can stand for 3 years using coin cell battery. In the future, the “Firefly” should be developed in thinner PCB, 0.5mm PCB thickness, because dispenser requires 0.5 mm PCB thickness for the perfect final product. Keywords: Near Field Communication, Bluetooth Low Energy, and Antenn

Spherical Harmonics Ylm(θ,ϕ)Y_{l}^{m}(\theta,\phi): Positive and Negative Integer Representations of su(1,1) for l-m and l+m

The azimuthal and magnetic quantum numbers of spherical harmonics $Y_{l}^{m}(\theta,\phi)$ describe quantization corresponding to the magnitude and $z$-component of angular momentum operator in the framework of realization of $su(2)$ Lie algebra symmetry. The azimuthal quantum number $l$ allocates to itself an additional ladder symmetry by the operators which are written in terms of $l$. Here, it is shown that simultaneous realization of the both symmetries inherits the positive and negative $(l-m)$- and $(l+m)$-integer discrete irreducible representations for $su(1,1)$ Lie algebra via the spherical harmonics on the sphere as a compact manifold. So, in addition to realizing the unitary irreducible representation of $su(2)$ compact Lie algebra via the $Y_{l}^{m}(\theta,\phi)$'s for a given $l$, we can also represent $su(1,1)$ noncompact Lie algebra by spherical harmonics for given values of $l-m$ and $l+m$.Comment: 11 pages, no figures, version to appear in Adv. High Energy Phy

A new empirical model to predict stress intensity factor for double interacting surface cracks located in hollow cylinder

Fracture in cylinders is one of the most popular types of failure. Owing to the impact of production processes, nondestructive testing, and severe operational conditions, etc., cracks exist. The cracks could be detected in single or multiple form, where multiple cracks considered among the significant concerns that cylinders expected to experience. This is because in the existence of multiple neighboring cracks, crack interaction can take place between cracks and accelerates fracture process and lead to a catastrophic failure. Consequently, this study focuses on the problem of double interacting surface cracks located on external and internal surfaces of a hollow cylinder and oriented into parallel and non-coplanar parallel cracks configuration. Stress Intensity Factor (SIFs) has been chosen as the driving force to define the crack interaction. The SIFs have been analyzed for a wide variety of crack geometry, and cylinder type as well as separation distances utilizing finite element software Ansys under different types of mechanical loadings. Based on the analysis results, an empirical mathematical model was produced to predict the SIFs for double parallel cracks using the SIFs for a single crack, for thick and thin cylinders, separately. The empirical model was verified in terms of performance evaluation metrics, which exhibited prediction error less than 5%. Also, it is shown that crack interaction influence for parallel cracks demonstrated by shielding interaction influence only, while both shielding, and amplification impacts produced for non-coplanar cracks. The crack separation distance (horizontal and angular) between the cracks displayed substantial influence on interaction since it exhibited the ability to convert the interaction behavior from shielding to amplification impact (for angular). The presented results in this research serve the literature database since SIFs for a wide variety of cracks geometry have been introduced under different types of loading. Besides, the proposed mathematical model could be used easily and confidently as it displayed a high rate of accuracy

The impact of real oil price on real effective exchange rate: The case of Azerbaijan

Using quarterly data from 2000-2007 and applying Error Correction Model and Johansen Co- integration Approaches I estimate the impact of real oil price on the real exchange rate of Azerbaijani manat. Estimation outputs derived from these approaches are very close to each other and indicate that real oil price has statistically significant positive impact on real exchange rate in the long-run. Besides, revealed that relative price as a proxy for productivity has also explanatory power in explaining long-run behavior of real exchange rate. Estimated Error Correction Term indicates that half-life of adjustment toward long-run equilibrium level takes 3-4 quarters. Since findings of this study occur as results of high fiscal expansion my policy suggestions mainly related to Fiscal policy implementations.Real effective exchange rate, Real oil price, Relative productivity, Azerbaijani manat, Dutch Disease, Oil-exporting Countries, Johansen Co-integration Approach, Error Correction Modeling, Half-life Speed

The Impact of Real Effective Exchange Rate on the Non-oil Export: The Case of Azerbaijan

The paper investigates the impact of the real exchange rate on non-oil exports in Azerbaijan by applying Vector Error Correction Model. The estimation results suggest that real exchange rate of manat has negative impact on non-oil export performance while non-oil GDP affects positively in the long- and short-run. Error correction term indicates that short-run fluctuation can be adjusted into long-run equilibrium relationship. Based on findings of the study can be concluded that appreciating real exchange rate is one of major factors that impede non-oil export growth. Since promotion of non-oil export is one of the urgent issues of the strategic economic policy of Azerbaijan Republic then findings of the study may be useful for policymakers.Azerbaijani economy, Non-oil export, Real effective exchange rate, Non-oil GDP, Dutch Disease, Vector Error Correction Model.

Relationship between inflation and economic growth in Azerbaijani economy: is there any threshold effect?

The study examines possibility of threshold effect of inflation on economic growth over the period of 2000-2009. Estimated threshold model indicates that there is a non-linear relationship between economic growth and inflation in the Azerbaijani economy and threshold level of inflation for GDP growth is 13 percent. Below threshold level inflation has statistically significant positive effect on GDP growth, but this positive relationship becomes negative one when inflation exceeds 13 percent. Results of the study may be useful for monetary policymakers in terms of keeping inflation below the threshold level of 13 percent to prevent its negative effect on economic growth.Azerbaijani Economy, Inflation, Economic Growth, Gross Fixed Capital Formation, Threshold Level

Analyzing price level in a booming economy: the case of Azerbaijan

The study analyzes price level in Azerbaijan economy over the period of 2000-2007 by employing a specific approach. The paper concludes that price increases caused by a resource boom differs from the price increases generated by a non-booming economy. Thereby, inflation mainly caused by resource boom has its own specific features in terms of impact on economy and therefore requires specific policy response. Some policy recommendations related to monetary and fiscal policies are suggested for elimination of harmful effects of resource boom and for preventing high price level in Azerbaijani economy.Oil boom, Dutch Disease, Price level, Azerbaijan economy, Bound Testing Approach.

The Impact of Real Oil Price on Real Effective Exchange Rate: The Case of Azerbaijan

Using quarterly data from 2000-2007 and applying Error Correction Model and Johansen Co-integration Approaches I estimate the impact of real oil price on the real exchange rate of Azerbaijani manat. Estimation outputs derived from these approaches are very close to each other and indicate that real oil price has statistically significant positive impact on real exchange rate in the long-run. Besides, revealed that relative price as a proxy for productivity has also explanatory power in explaining long-run behavior of real exchange rate. Estimated Error Correction Term indicates that half-life of adjustment toward long-run equilibrium level takes 3-4 quarters. Since findings of this study occur as results of high fiscal expansion my policy suggestions mainly related to Fiscal policy implementations.Real effective exchange rate, Real oil price, Relative productivity, Azerbaijani manat, Dutch Disease, Oil-exporting Countries, Johansen Co-integration Approach, Error Correction Modeling, Half-life Speed