As the quest to counteract the undesirable effects of electric load which create power factors less than unity increases, a novel mid-point converter system is presented. This is a phase-controlled ac to dc converter where the conducting and switching method is on one-to-one basis, unlike the full-bridge converter whose switching goes in pairs. Using the fourier series, the generalized power factor of this system of converter was calculated. From this general power factors, the power factor of the mid-point converter with any number of phases and pulse numbers can be calculated.

Despite their well-known harmfulness to human health, pesticides persist largely used for plant cultivation. These molecules are highly resistant to degradation by plant metabolism, while their presence, even as traces is dangerous at phytosanitary quality and environment impact. Now, due to regulations and quality standards, food industries seek to control these contamination risks and conduct research on technologies able to efficiently eliminate pesticide residue traces. Since the mechanisms of eradicating molecules are classified in three ways of evaporation, dissolution, and thermal degradation; the decontamination process should depend on three important factors: i/ the nature of the products (composition and technological/structural aptitude), ii/ the nature of the pesticides (volatility, solubility, and thermal stability), and iii/ the type of the disinfection process. The instant treatment operations have the particularity of 1/ weak thermal degradation because of HTST (high-temperature/short-time) nature; 2/ frail solubilizing by using the steam instead of liquid soaking as heating fluid, and 3/ favorable elimination of vapor molecules through the instant autovaporization. Therefore, the present study aims at the application of the multi-flash autovaporization MFA technology in the treatment of tetrachloro-m-xylene, aldrin, γ-chlordane and dieldrin pesticide residues in the case of rapeseed oil (brute). This resulted in drop-down levels of 45.2%; 30.6%; 32.2%; and 29.2%, respectively for the initial concentrations of 5, 4.51, 1.98 and 3.98 (10-2 mg/kg of oil), respectively. Far from a real optimization of the operation, 51-cycle MFA at a heating temperature of 50 °C reduced the total pesticide concentration from 15.39 to 9.99 (10-2 mg/kg oil) .

Radio Frequency Identification (RFID) technology can be used in blood bank for managing blood donation process, for storing and identifying blood bag after donation and also for distributing blood product to the patients. Standard 13.56 MHz RFID tag has been accepted by International Society for Blood Transfusion (ISBT) for using in Blood Bank.13.56 MHz RFID tag can carry ISBT 128 data structure. Different types of RFID tag can be used in Blood bank for blood donation process. This research article presents the way for using RFID technology to make easier the blood donation process, blood bag storing process and also blood distribution process. RFID wristband tag can be used to recognize the blood donor properly and RFID passive label is useful for identifying, storing and issuing the blood bag for transfusion. Use of RFID technology in blood bank will reduce many issues and make easier the process of blood donation. This research will also demonstrate the benefits of using RFID tag instead of Barcode Labels on the Blood Bag. This research was done for presenting the efficient way of using RFID technology in Blood banks in Saudi Arabia.

Features of Military English Science and Technology (MEST) have been introduced, and accordingly its translation principles are put forward. At the same time, difficulties in the translation of MEST are analyzed, that is, a large number of professional terms, abbreviations and old words with new meanings making it difficult for translators and interpreters to understand. Meanwhile, MEST are not open to the public, which also reduces translators‘ chances to learn professional materials, resulting in underdeveloped translation studies. To be engaged in translation and related research on MEST, translators must have excellent English language skills, extensive scientific knowledge and solid Chinese language skills to ensure the accuracy of information transmission and to enhance the readability of the translation.

Over the past two decades in Qatar, designers and planners focused on design merits of high-rise buildings and the impact on the skyline and the city image, discarding the integration of the buildings with the ground level. This research study investigates the sustainability and livability of the public realm within high-rise districts, focusing on the business district of West Bay, Doha, State of Qatar, as a case study. In West Bay, tall buildings have security gates and parking spaces on the ground level that weaken the livability and vitality of the street. Therefore, to enhance livability, the built environment should provide a vibrant social urban ground level. Insufficient parking spaces along with the lack of public transportation choices frustrate people and intensify the traffic congestion in West Bay. The lack of services and amenities within the residential towers accompanied with poor pedestrian circulation make it hard to perform everyday activities. The spatial segregation in West Bay translates into a distinct functional spatialisation. Also, most buildings in West Bay are single-use occupancy, with clusters of retail, services and catering activities, their spatialisation does not provide for an overlap of movement between the working occupants and the recreational ones. The research study aims to study the relationship between built environment and livability on the street level of the existing spatial environments on the micro urban scale of West Bay. Therefore, this research project aims to fill the gap in the literature regarding design-based research that provides solutions to existing limitations in the physical environment. The strategy includes a summary of the literature, site analyses and resultant design vision for a sustainable livable development concept for the study area, the business district of West Bay

In vitro embryogenesis and plant regeneration were studied in date palm cultivar, Khalas using three osmotic agents (PEG, Mannitol, and Glucose) and NaCl for five different time periods ranging from 1 to 24 hrs. The highest frequency of somatic embryogenesis was recorded in the medium containing 15% PEG in the MS-culture medium. Similarly, the highest number of plantlets was also obtained on the regenerating medium containing PEG under elevated treatment time periods. Mannitol and glucose showed almost the same response at all treatment levels producing on an average 2 to 3 embryos per culture but did not had any positive effect on plant regeneration. Of all the osmtic agents, PEG proved to be better in producing more callus fresh and dry weights followed by mannitol indicating that at this stage these osmotica worked as non-metabolic osmotic agents. The use of NaCl as an osmotic agent produced the most adverse effects on callus fresh weight and embryogenesis, with no embryos formation at 12 and 24 h treatments. These studies revealed that elevated levels of PEG showed stimulating effects and helped in the production of more callus mass, somatic embryos and plantlets formation compared to other osmotic agents used.

The key issues of implementing internet marketing are revealed. Specified for one of the varieties of online marketing– conversion marketing. The general principles for determining the model of Internet marketing conversion are revealed. The basis of formalization of the general model of Internet marketing is offered. The main tasks of the solution of key tasks of the conversion Internet marketing are outlined.

This paper investigates the mechanical properties of an aluminium oxide reinforced Eposand composites. The matrix a brand of epoxy was obtained from Shell Petroleum Development Company (SPDC) and reinforced with particulates of alumina in micro-scale. The resin and hardener were mixed and compounded in the ratio of 2:1 and through the application of centrifugal force was thoroughly compounded with the fillers. Two main mechanical tests of tensile and compression where carried out to obtain tensile, compressive, and yield strength of the composites. Four samples of 10%, 20%, 30%, and 40% by weight of alumina with five replications each were prepared and subjected the tests in accordance with ASTM D3039 and ASTM D3401M for tensile and compressive tests respectively. Maximum compressive strength of 133.3 MPa was recorded for 30% of filler, while maximum tensile strength of 7.9 MPa was obtained 10% of filler. An optimal yield strength of 3.4 MPa was recorded at 20% weight of filler. The analysis showed that the compressive strength increases with increase in percentage weight of alumina.