MPP

apa Saja Persiapan Pensiun, Masa Persiapan Pensiun, MPP, Persiapan Pensiun, Persiapan Pensiun Dengan Emas, Persiapan Pensiun Dini, Persiapan Pensiun Karyawan Swasta, Persiapan Pensiun Muda, Persiapan Pensiun PNS, Persiapan Pensiun PPT, Persiapan Pensiun Sejak Dini, Persiapan Pensiun PNS, Persiapan Pensiun Usaha Apa

Analytical models for the sound absorption coefficient of MPP are extensively available particularly for the cases where holes are regularly distributed across the MPP structure. The behaviors of sound absorption performance have therefore been well recognized. Thus, it’s also interesting to study the MPP for the cases where the distribution of holes is not spaced regularly across the MPP, which becomes the objective of this paper. Here, the FEM is employed to simulate the acoustic impedance of the panel holes. Two main cases of irregular hole distributions are observed, namely 1) where the holes are concentrated in the middle of the plate, and 2) where the holes are distributed around the edge. For each case, this is applied for MPP with homogenous and inhomogeneous perforations. The analysis reveals that for both cases of hole distributions, the peak absorption can shift to lower frequency with the second case to have more effect than the first case. The finite element models are validated with experiment with good agreement.

With the growing interest in renewable energy resources, a various number of studies and development for photovoltaic (PV) systems have investigated to satisfy global needs in energy. The larger interest in PV resources has increased request for suitable apparatus with which to test PV systems. This paper deals with the design of an indoor PV source emulator using an actual PV panel to facilitate PV system testing under real environment conditions. A low-cost Arduino Mega256 microcontroller-based data acquisition system (DAQ) approach has been developed to collect the data in term of voltage, power and current based on different levels of light intensity and temperature as well as under partial shading conditions. Hence, the proposed system is not just a solar emulator but it’s a complete solar emulator-DAQ system that can emulate the sunlight and monitor the PV parameters and then collect and store the data for further research investigation. The proposed monitoring system provides real time update of the solar panel characteristics at any time in the year without relying on the weather changes. This data acquisition system will be of superior interest for undergraduate and graduate students as it is both open-source and flexible. The details design of the proposed PV solar emulator and data logger and its implementation are described.

Currently, neurodegenerative diseases are a major cause of disability around the world. Parkinson's disease (PD) is the second-leading cause of neurodegenerative disorder after Alzheimer's disease. In PD, continuous loss of dopaminergic neurons in the substantia nigra causes dopamine depletion in the striatum, promotes the primary motor symptoms of resting tremor, bradykinesia, muscle rigidity, and postural instability. The risk factors of PD comprise environmental toxins, drugs, pesticides, brain microtrauma, focal cerebrovascular injury, aging, and hereditary defects. The pathologic features of PD include impaired protein homeostasis, mitochondrial dysfunction, nitric oxide, and neuroinflammation, but the interaction of these factors contributing to PD is not fully understood. In neurotoxin-induced PD models, neurotoxins, for instance, 6-hydroxydopamine (6-OHDA), 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), 1-Methyl-4-phenylpyridinium (MPP +), paraquat, rotenone, and permethrin mainly impair the mitochondrial respiratory chain, activate microglia, and generate reactive oxygen species to induce autooxidation and dopaminergic neuronal apoptosis. Since no current treatment can cure PD, using a suitable PD animal model to evaluate PD motor symptoms' treatment efficacy and identify therapeutic targets and drugs are still needed. Hence, the present review focuses on the latest scientific developments in different neurotoxin-induced PD animal models with their mechanisms of pathogenesis and evaluation methods of PD motor symptoms.

This paper demonstrates a mathematical representation of Photovoltaic (PV) solar cells and hence panels performance. One-diode solar cell model is implemented to simulate the cell and extract the performance indications. The tested PV modules are BP Solar (60 Watt) and Synthesis Power (50 Watts), which are operating in a PV generation system in the University of Anbar-Iraq, College of Applied Sciences. The math model demonstrates Power versus Voltage (P-V) characteristic curves to depict and study various parameters with affecting variations in the PV array performance. The parameters include ambient and cell temperature degrees and solar irradiance (G) level which are the main elements to dictate the productivity of a solar system. G is represented by sun unit (1 sun=1 kW/m 2). The outcomes of the simulation model characteristics curves have been compared with curves provided by the tested modules data sheets. MATLAB software has been used to simulate the model and extract the results. This paper also investigated photovoltaic simulation with maximum power point tracking (MPPT) converter to evaluate hence predict the behaviors of the whole photovoltaic DC current generation using PSIM Power Electronics program. The model focuses on the basic components in PV systems; The panel and the DC-DC converter. The modeling outcome data will be used as a reference verifying the performance of the tested modules during the year seasons under the dominating dusty hot weather in western Iraq.

Apa Saja Persiapan Pensiun, Masa Persiapan Pensiun, MPP, Persiapan Pensiun, Persiapan Pensiun Dengan Emas, Persiapan Pensiun Dini, Persiapan Pensiun Karyawan Swasta, Persiapan Pensiun Muda, Persiapan Pensiun PNS, Persiapan Pensiun PPT, Persiapan Pensiun Sejak Dini, Persiapan Pensiun Sejak Dini, Persiapan Pensiun PNS, Persiapan Pensiun Usaha Apa

Persiapan Pensiun, Masa Persiapan Pensiun
MPP, Persiapan Pensiun, Persiapan Pensiun Dengan Emas, Persiapan Pensiun Dini, Persiapan Pensiun Karyawan Swasta, Persiapan Pensiun Muda, Persiapan Pensiun PNS, Persiapan Pensiun PPT, Persiapan Pensiun Sejak Dini, Persiapan Pensiun Sejak Dini Persiapan Pensiun PNS, Persiapan Pensiun Usaha

Analytical models for the sound absorption coefficient of MPP are extensively available particularly for the cases where holes are regularly distributed across the MPP structure. The behaviors of sound absorption performance have therefore been well recognized. Thus, it’s also interesting to study the MPP for the cases where the distribution of holes is not spaced regularly across the MPP, which becomes the objective of this paper. Here, the FEM is employed to simulate the acoustic impedance of the panel holes. Two main cases of irregular hole distributions are observed, namely 1) where the holes are concentrated in the middle of the plate, and 2) where the holes are distributed around the edge. For each case, this is applied for MPP with homogenous and inhomogeneous perforations. The analysis reveals that for both cases of hole distributions, the peak absorption can shift to lower frequency with the second case to have more effect than the first case. The finite element models are validated with experiment with good agreement.