Numerical study of circle fractal grid perforated plate as a turbulent generator in combustion chamber

Fractal grids can be used to design turbulent flows with low power losses and high turbulence intensities for intense yet economic mixing over a region of designed length and location. The introducing circle grid perforated plate is the main aim of this present paper. In this numerical work, we want to ascertain a new approach in turbulence generators on the structure of premixes flames using perforated plate fractal-grids pattern. In this paper, we compared circle grid perforated plate by varies using its diameters, spacing and number of holes on the plate. The result showed good perceptivity of the fractal generated turbulence and the fractal flow physics. The turbulent intensity can be increased by a grid with higher blockage ratio

Multimodal glosses enhance learning of Arabic vocabulary

In second language acquisition, a popular method of introducing new vocabulary is by embedding the words in a natural text. Supplementary information (e.g., definitions, illustrations, synonyms, etc.), or glosses, can be included in the margins of the texts to highlight and improve retention of the new words. Previous studies suggest multimodal glosses facilitate learning, although the question of which glosses are most effective remains an active research topic. In the present study, we focused on a sample of university students studying Arabic as a second language. In two experiments, we found that (a) recognition and recall of target vocabulary words were superior when target words were accompanied by a combination of text and picture glosses compared to text-only or picture-only; and (b) including information about the Arabic root word from which the target word was derived in the glosses provided an additional memory benefit. Overall, this study adds further support for glosses as a teaching tool by generalizing to the case of Arabic. Our results also show how glosses that highlight root information can be useful for improving recognition and recall of Arabic vocabulary specifically

Multimodal glosses enhance learning of Arabic vocabulary

In second language acquisition, a popular method of introducing new vocabulary is by embedding the words in a natural text. Supplementary information (e.g., definitions, illustrations, synonyms, etc.), or glosses, can be included in the margins of the texts to highlight and improve retention of the new words. Previous studies suggest multimodal glosses facilitate learning, although the question of which glosses are most effective remains an active research topic. In the present study, we focused on a sample of university students studying Arabic as a second language. In two experiments, we found that (a) recognition and recall of target vocabulary words were superior when target words were accompanied by a combination of text and picture glosses compared to text-only or picture-only; and (b) including information about the Arabic root word from which the target word was derived in the glosses provided an additional memory benefit. Overall, this study adds further support for glosses as a teaching tool by generalizing to the case of Arabic. Our results also show how glosses that highlight root information can be useful for improving recognition and recall of Arabic vocabulary specifically

A review of potential methods for monitoring rangeland degradation in Libya

Natural and human factors exert a profound impact on the degradation of rangelands, human effects being the most significant factor in increasing the severity of deterioration. This occurs through agricultural expansion at the expense of rangelands, and with the number of domestic and wildlife animals exceeding the natural carrying capacity. This raises concerns about the ongoing sustainability of these land resources, as well as the sustainability of traditional pastoral land practices. Rangelands require effective management, which is dependent upon accurate and timely monitoring data to support the assessment of rangeland deterioration. Natural rangelands provide one of the significant pillars of support for the Libyan national economy. Despite the important role of rangeland in Libya from both economic and environmental perspectives, the vegetation cover of Libyan rangeland has changed adversely qualitatively and quantitatively over the past four decades. Ground-based observation methods are widely used to assess rangeland degradation in Libya. However, multi-temporal observations are often not integrated nor repeatable, making it difficult for rangeland managers to detect degradation consistently. Field study costs are also significantly high in comparison with their accuracy and reliability, both in terms of the time and resources required. Remote-sensing approaches offer the advantage of spanning large geographical areas with multiple spatial, spectral and temporal resolutions. These data can play a significant role in rangeland monitoring, permitting observation, monitoring and prediction of vegetation changes, productivity assessment, fire extent, vegetation and soil moisture measurement and quantifying the proliferation of invasive plant species. This paper reviews the factors causing rangeland degradation in Libya, identifying appropriate remote-sensing methods that can be used to implement appropriate monitoring procedures

Multi-Level GIS-Based Data Management Model for Building Maintenance and Repair Data

With the increasing cost of new construction projects, keeping the built facilities at acceptable levels of functionality has become a vital and challenging task. This is particularly so for non-residential buildings, such as schools, which are important infrastructure assets that require frequent maintenance and repair of their many components and sub-components. Maintenance and repair jobs, however, involve huge sets of data which contain useful interrelated information about costs, resources, conditions, and productivity. To support decision making at different management levels with respect to the utilization of resources requires the managing, analyzing, and visualizing of these huge amount of data. This thesis presents a simple and inexpensive approach to managing, reporting, and facilitating the visualization of maintenance and repair data for school buildings. The proposed model conveniently integrates widely used spreadsheet software – MS Excel – and Geographic Information System (GIS) software – MS MapPoint. The spreadsheet’s simple and powerful capability of managing data is exploited to design a data warehouse that can facilitate reporting and visualization. The Visual Basic for Applications (VBA) programming language was used to facilitate the integration between the two software systems and to automate the generation of a variety of reports and maps that can show analysis trends, reveal hidden relationships, and support decision making for different management levels. A real-life case study involving two years of maintenance data for 93 schools at the Toronto District School Board (TDSB) is used in this thesis to illustrate the development of the model and to demonstrate its simplicity and efficiency. The use of the model as part of an integrated framework for building asset management is also highlighted

Analisi dan Rancang Bangun Sistem Monitoring Suhu Shelter BTS Berbasis Website dan SMS

ABSTRAKSI: Kebutuhan telemonitoring atau sistem monitoring jarak jauh telah menjadi simbol berkembangnya peradaban teknologi dunia di bidang kontrol. Pemantauan perangkat secara realtime sudah menjadi prosedur operasional standar pada industri yang bergerak di bidang teknologi khususnya di bidang teknologi telekomunikasi. Banyak perangkat–perangkat telekomunikasi yang harus di monitor secara periodik baik dari perangkat fisiknya maupun lingkungan perangkatnya. Untuk itulah perlunya dikembangkan suatu perangkat instrumentasi sistem monitoring. Suhu dan kelembaban Shelter BTS merupakan komponen yang penting untuk selalu dipantau. Sistem pelaporan ke teknisi lapangan dari hasil monitoring yang ada sekarang masih menggunakan komunikasi manual. Sehingga, penelitian ini dicoba membangun sistem telemonitoring kondisi lingkungan shelter BTS yang meliputi kondisi suhu dan kelembaban di dalam shelter BTS. Pada implementasinya, sistem ini tidak hanya digunakan untuk mengukur kondisi lingkungan BTS, melainkan juga dapat digunakan untuk mengukur kondisi lingkungan BSC mapun MSC. Untuk melihat hasil monitoring disediakan aplikasi berbasis website yang dilengkap dengan grafik data dan peta digital yang memberikan informasi lokasi BTS. Selain itu, disediakan fitur SMS untuk memberikan informasi gangguan yang terjadi pada suatu BTS secara langsung ke handphone teknisi yang bertanggung jawab untuk menangani gangguan pada Shelter BTS dilokasi kerjanya. Sistem yang dikerjakan melakukan pengiriman data suhu dan kelembaban dari shelter BTS secara periodik setiap 15 menit. Hasil pembacaan sensor yang ditampilkan di website, sistem ini memiliki tingkat keakuratan yang cukup tinggi dengan hasil pengukuran secara manual di dalam shelter. Hal tersebut dapat ditunjukkan dengan nilai simpangan antara pengukuran langsung dan hasil pembacaan sensor secara rata – rata yaitu sebesar 0.01 derajat Celcius. Untuk mengirimkan laporan hasil monitoring ke teknisi, dibutuhkan waktu 10 detik. Sehingga pelaporan hasil monitoring lebih efektif dari yang sudah ada sekarang. Kata Kunci : Website monitoring, Suhu, Shelter BTS, SensorABSTRACT: Needs telemonitoring or remote monitoring system has become a symbol of the development of civilization in the field of control technology world . Realtime monitoring devices have become standard operating procedure in the industry engaged in the field of technology especially in the field of telecommunications technology . Many telecommunication devices must be periodically monitored both from the physical and environmental devices. For that we need to develop a monitoring system instrumentation devices . Temperature and humidity BTS Shelter is an essential component to always monitored . Reporting systems to field technicians from the existing monitoring results are still using manual communication . Thus, this study attempted to build a shelter environment telemonitoring system BTS includes temperature and humidity conditions in the shelter of BTS . On implementation , the system is not only used to measure environmental conditions BTS , but also can be used to measure environmental conditions mapun BSC MSC . To see the results of the monitoring application is provided based website that completed with graphs of data and digital maps that provide location information BTS . In addition , the SMS feature available to provide information on the disturbance occurred at a mobile phone base stations directly to a technician who is responsible for addressing harassment on the location of BTS Shelter works . The system performs temperature and humidity data transmission from the BTS shelter periodically every 15 minutes . The results of the sensor readings are displayed on the website , this system has a fairly high degree of accuracy the measurement results manually in the shelter . This can be shown by direct measurement of the value of the deviation between the sensor readings and the average - average in the amount of 0.01 degrees Celsius . To submit monitoring reports to the technician , it takes 10 seconds . So reporting the results of monitoring more effective than it already is. Keyword: Website monitoring, temperature, BTS Shelter, Senso

PATTERN OF NAZHIR WAKF DEVELOPMENT IN THE CITY OF BANDA ACEH

ABSTRACT Based on waqf regulations in Indonesia, Nazhir waqf is entitled to receive guidance from the government (central Ministry of Religion, Regional Office of the Ministry of Religion, Regency/City Ministry of Religion and KUA) and the Indonesian Waqf Board. However, the waqf regulations in Indonesia do not regulate the pattern of development. This study examines how the pattern of coaching Nazhir in the city of Banda Aceh. The method used in this research is a qualitative method that is a field study or empirical and the focus of the study is the role of the government in fostering Nazhir in the city of Banda Aceh. The results of the study show that the pattern of Nazhir's development in the city of Banda Aceh is a formal and informal pattern. Formal patterns such as seminars, workshops and training. Meanwhile, informal patterns such as at the time of sermons, religious lectures, at the momentum of the handover of Nazhir's decree, the participants were very limited and attended by participants other than Nazhir waqf

Hemophagocytic syndrome and acute pancreatitis in acute systemic lupus erythematosus

AbstractHemophagocytic syndrome (HPS) is characterized by the activation of histiocytes with prominent hemophagocytosis in bone marrow and other reticuloendothelial systems. It has two forms: primary and secondary. The precise pathogenesis of HPS is unclear but a dysregulation of macrophage–lymphocyte interactions with subsequent increases in the levels of both T-cell-derived and macrophage-derived cytokines has been suggested. Cardinal symptoms of HPS are prolonged high fever, hepatosplenomegaly, cytopenias, lymphadenopathy and neurological symptoms. In this report, we present a case Systemic Lupus Erythematosus associated with HPS and acute pancreatitis