Archives-June 2014

Treatment and disposal of oily wastewater, presently is one of the serious environmental problems contributors. Numerous methods have been used to remove residual oil from wastewater, such as adsorption, flocculation, electrocoagulation and flotation. The focus of this research was to prepare and investigate the using of chitosan as an oil adsorbent and coagulant of the excessive residue oil droplets from an oily wastewater. In this respect, shrimp waste (shell) was treated with 9% (w/w) NaOH at 65oC for 90 min to obtain a purified crab chitin, and then 1g of purified crab chitin was treated with (w/w) 50% sodium hydroxide solution at 136oC for 1h to obtain pure chitosan. The prepared chitin and chitosan were characterized by the FT-IR spectrometry, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The FT-IR spectrum shows three characteristic absorption bands of chitosan one of them was very strong and appeared at about 3306 cm-1 this for stretching vibration bands of (N-H and O-H), the second strong one appeared at about 1593.54 cm-1 that assigned for (-CONH-) and the third band at 1054.90 cm-1 for (C-O-C). The XRD patterns of chitosan show two characteristics crystalline peaks at 2? of 9.24° and 19.2° indicates the formation of chitosan from chitin. The surface morphology of chitosan before and after oil adsorption was examined using SEM. Then, the percentage of oil droplets removal was evaluated by HPLC.

A method and system for finding a person using a mobile messenger service in a mobile communication terminal including a global positioning system (GPS) module are provided. The method includes providing a location finding method using a mobile messenger service, the method comprising: providing a mobile messenger service to a mobile communication terminal in which a position detecting module is provided; receiving information on access to the mobile communication terminal and information on registration of counterpart mobile communication terminals registered with the mobile messenger service, so as to generate information on locations of the mobile communication terminal and the counterpart mobile communication terminals and to generate map information to which the location information is mapped; and providing the map information to the mobile communication terminal.

This paper proposes an improved configuration of double flying capacitor multicell (DFCM) converter. The main advantages of the proposed converter, compared to the conventional lDFCM converter, are the doubling of the number of output voltage levels and improvement of the output voltage frequency spectrum. This progress is achieved by adding only two low-power switches and one dc voltage source. However, the number and voltage rating of high-frequency switches and capacitors and the number of high frequency switching’s during a full cycle are kept constant. The doubling of the number of output voltage levels in the proposed converter makes it possible to decrease the number of cells, the number of flying capacitors, as well as their voltage rating and the amount of stored energy in flying capacitors. Moreover, a modulation method based on phase-shifted carrier pulse width modulation is proposed to control the new converter. The doubling of the number of output voltage levels in the proposed converter makes it possible to decrease the number of cells, then number of flying capacitors, as well as their voltage rating and the amount of stored energy in flying capacitors. Moreover, a modulation method based on phase-shifted carrier pulse width modulation is proposed to control the new converter.

This paper introduces a new converter called solar reconfigurable converter (SRC) for PMBLDC drive with photovoltaic (PV)-battery application. The basic concept of the SRC is to use a single power conversion system to perform different operation modes such as PV to BLDC drive (dc to ac), PV to battery (dc to dc), battery to BLDC drive (dc to ac), and battery/PV to BLDC drive (dc to ac) for solar PV systems with energy storage. For PMBLDC drive FUZZY LOGIC controller is used to control the motor drive in closed loop. A MPPT technique is also used in DC-DC operation to extract the maximum power from the PV pannel to the battery. In this paper, along the two types of MPPT technique, Incremental conductance algorithm is used for DC/DC operation. PI current controller is used for DC/DC operation(battery charging). This converter solution is appealing for PV-battery application, because it minimizes the number of conversion stages, thereby improving efficiency and reducing cost, weight, and volume. In this paper simulation result can be done using matlab software.

Despite the increase in interest in fashion in Malaysia, there has not been any in-depth research conducted on the motives behind this concept. Hence, this study aims to fill this gap by searching for patterns, ideas, or issues to answer specifically “what is Malaysian youth understanding of fashion ?”Twelve respondents were selected through Facebook by virtue of their fashionpictures. An in-depth interview was conducted on one to one basis. The outcome indicated that these youth concur with the concept of fashion. This information will assist and be valuable to marketers in designing fashion.

To prove the efficiency of Amniotic fluid index(AFI) with color of liquor in predicting foetal jeopardy during labour and to select the patient who require continuous monitoring. This is an prospective observational study done during Oct 10 to Sep 12. 200 pregnant women who were booked in this hospital. Out of 200 patients, the incidence of meconium stained liquor with oligohydramnios 61% and Perinatal mortality was 2.5%. We conclude that, in term pregnancies it is a reliable method to assess the perinatal outcome.

The essential oil composition of the leaves of Artemisia salsoloides, growing in Jammu & Kashmir, India, along with its antioxidant activity, is reported in present study. Gas chromatography coupled with mass spectrometry (GC-MS) revealed the presence of eight constituents, representing 99.96% of the total oil. The major constituents of the oil were 2,4-Penta diynylbenzene (49.68%), ?-trans-ocimene (17.98%), Sabinene (16.68%), 2,5-etheno(4,2,2) propeller-3,7,9-triene (5.58%). The monoterpene content in the oil was found to be 44.70 % while as other hydrocarbon content was 55.26%. The essential oil was evaluated for antioxidant activity with DPPH radical, exhibiting an interesting antioxidant profile.

Universe is continuously expanding, and is observed to expand at a continuous increasing speed, much greater than that of light, though the theory of relativity destroys the relevance of this statement. This gave birth to a theory called Big Bang theory, which says universe was born from a single point, started from pure energy and then came matter, space, and time. Within a short time, it is said to have “fight” with anti-matter and a small part of total matter constructed this whole universe.

An uncommon case has been reported of bilateral transscaphoid-perilunate dislocation racture following trauma. A 21-year-old male with bilateral transscapholunate dislocation was treated by open reduction and internal fixation. The case was examined in detail, and compared to the findings in the literature; observations regarding fracture prognosis were also made. Two years post-surgery, the patient remained asymptomatic.

The authors report a case of mycetoma of the foot (Madura foot). This is a patient of 34 yearswith a chronicswelling of the right foot withfistulasgiving a purulent yellow ishcontaining grains. Antibiotics and antifungaltreatments have not worked. Radical treatmentwasnecessary.