Pengaruh Temperatur Annealing Terhadap Sifat Fisis Batu Bata Limbah Serat Alami

This study aims to determine at what temperature annealing which will produce compressive strength and good porosity in the brick waste natural fiber. This study was an experimental study with dick variables such as the proportion of clay and waste of natural powder that is 90%: 10%, each grain size 0.18 mm material, waste natural powder used is sawdust sawmill. The independent variable is the temperature annealing while the dependent variable is the compressive strength and porosity. And wastes natural clay powder mixed and given 5 liters of water, then in print square shaped measuring 6x6x6 cm by 20 pieces to determine the compressive strength and the cylinder-shaped measuring 10 x 7 cm by 4 units to determine the value of porosity. Each of these samples with variations in-Anneal Annealing temperature 7000C, 7500C, 8000C and 8500C using Electric Furnace. After data collection and data analysis of compressive strength and porosity of the importance of the value of the maximum compressive strength of 89.5 kg / cm2 at a temperature of 8500C and this value meets the standards. While the minimum porosity value was 2.10% at the temperature of 8500C

Pertumbuhan Optimum Penicillium Spp. Dan Cunninghamella Spp. Yang Diisolasi Dari Pakan Dan Efek Toksiknya Pada Mencit (Mus Musculus)

Fungi are a major microorganism present in the feedstuffs that able to reduce nutritive value and produce toxin that harmful for animal. Penicillium spp. and Cunninghamella spp. were dominant present in the feedstuffs in tropical regions. The objectives of this study were to find out the optimum pH and temperature of Penicillium spp. and Cunninghamella spp. on agar media and to find out the effect of feeding diet containing corn contaminated with the fungi at level of 0%, 50% and 100% on the performance and relative organ weight of 45 mice (Mus musculus). Cunninghamella spp. grew at pH range of 3-9, and Penicillium spp. at pH range of 3-7. The temperature for the optimum growth of both fungi was on room temperature (28±2 oC). Feed consumption and daily gain (ADG) of mice were not significantly affected by content of corn contaminated with Cunninghamella spp. Conversely, corn contaminated with Penicillium spp. significantly (P < 0.05) reduced feed consumption and ADG of mice. Treatments had no effect on liver and hearth relative weight, but significantly influenced relative weight of kidney and lymph. Lymph relative weight of mice fed ration containing Penicillium-contaminated corn was lower (P < 0.05) than that of control. Mice treated with contaminated corn from both fungi at the level 100% also significantly (P < 0.05) had higher kidney relative weight than that of control. It was concluded that the toxic effect of Penicillium spp. was higher than that of Cunninghamella spp

Power Consumption Modeling and Analysis of Integrated Optical-Wireless Access Network

The integration of optical and wireless technologies at access networks are considered as a future solution which provide both high bandwidth and high mobility in an efficient way. GPON is a suitable candidate for optical backhaul due to the combination of higher data rates, greater split ratio and support for triple play services hence it offers maximum flexibility and cost advantages. On the other hand, recent developments of new radio access technologies and introduction of femtocell base stations provide the potential of offering broadband services and applications to everyone and everywhere. However, the power consumption of this network demands a particular attention because access networks are the largest contributor the network related electricity consumption. Therefore, in this paper we evaluate the power consumption of integrated optical-wireless access network which is based on independent ONU-BS architecture. We proposed a power consumption model for such network and the assessment has been done under different simulation scenarios. The constructed model will provide insight of the energy performance of the integrated access network so that in the network design process, focus can be done to the most energy saving strategies

Normal soaking extraction (NSE) of rotenone from Derris elliptica

Derris elliptica or the tuba plant contains rotenone, bio-active compound known that has the potential to be used as bio-pesticide. Bio-pesticide is the best-known alternative bio-pesticide which has the potential to replace the use of conventional pesticides, as it is more environmentally friendly. The main objective of the paper is to obtain the best extraction solvent for optimizing the yield in rotenone extraction. Rotenone was extracted from Derris root using three different parts of roots and three types of solvent in Normal Soaking Extraction (NSE). The types of Derris roots are: (1) Fine root (2) Coarse root (3) Stem. The three types of solvent system are: (1) Acetone 95 % (v/v), (2) Chloroform 99.9 % (v/v) and (3) a mixture of ethanol: H2O (9:1) added with oxalic acid (1mg/ml). The liquid crude extracts were further cleaned up to remove the fine debris of roots. The presence of rotenone was confirmed using qualitative analysis Thin Layer Chromatography (TLC) and thereupon the determination of rotenone content was carried out using High Performance Liquid Chromatography (HPLC). From the results obtained, it was found that the Normal Soaking Extraction (NSE) using acetone 95 % (v/v) was the best method to extract the highest yield of rotenone; 1.14 % (w/w)

Sterilization Study: Vasectomy and Tubectomy

Birth planning for a couple from the first and subsequent births can be arranged so that the welfare of the community increases and other undesirable things can be anticipated from afar. The methods include using contraception or prevention of pregnancy and family planning. Sterilization is to spay a man or woman by operating (in general) so as not to produce offspring. Sterilization for men (vasectomy) and women (tubectomy). Procedurally, vasectomy in men is relatively simpler than tubectomy while the procedure for tubectomy is a bit complicated and complex

Pendekatan Wasatiyyah dalam Berfatwa: antara Keterikatan Literalis dengan Kelonggaran Liberalis

&nbsp;Dalam era saat ini kemajuan ilmu pengetahuan dan teknologi, banyak masalah baru muncul, yang dikategorikan sebagai hukum Islam kontemporer. Putusan dari isu-isu tersebut memerlukan pendekatan ijtihad kolektif, sesuai dengan konteks saat ini untuk memastikan kesejahteraan manusia. Dengan demikian, artikel ini membahas pendekatan fatwa. Pada dasarnya, ada berbagai pendekatan antara dua faksi pemikiran, pendekatan yaitu ketegasan dan pendekatan kelonggaran. Namun, antara kedua pendekatan bertentangan, telah muncul media yang dikenal sebagai pendekatan wasatiyyah dalam mengeluarkan fatwa. Pendekatan ini secara signifikan memberikan solusi yang masuk akal untuk mengatur fatwa bebas dari kecenderungan menjadi terlalu ketat atau terlalu longgar dan tidak pernah menyimpang dari tujuan syariah

A study of potential Load Bearing Masonry (LBM) system in Malaysia construction industry

To overcome the problems in increasing of material prices, land prices, shortage of skilled workers, equipping low cost housing demands and maintained the cost of the constructing at an affordable price, there is a need to find the alternative solution for constructing method.The use of the load bearing masonry system (LBM) has been identified as a sustainable and an effective alternative method for the construction industry.The system offers several advantages in term of cost and speed of the construction, durability, strength, environmentally friendly practices and aesthetic qualities.Despite these advantages, unfortunately, this system has not been widely used in Malaysia compared to reinforced concrete (RC) frame construction. Therefore, this paper aims to discuss the advantages and potential of the system implementation to Malaysia construction industry in the future

Assessment of natural radionuclides in rivers of Pahang State Malaysia

Investigations were conducted to determine the radionuclide concentration levels in the major rivers in Pahang state, Malaysia. Since the rivers are the main sources for water supply in the state, it is important to measure natural radionuclide concentrations in the rivers. Seventeen water samples were collected from major rivers in Pahang state. The concentration of uranium, thorium and potassium were analyzed using inductively coupled plasma mass spectrometer (ICP-MS). The samples were found to contain permissible levels of radionuclides with a mean activity concentrations of uranium, thorium and potassium found to be 8.49 ± 0.34 mBq L-1, 1.74 ± 0.27 mBq L-1and 77.85 ± 0.96 mBq L-1respectively. The ratio between thorium and uranium concentration is found to be 3:4 due to the higher solubility of uranium than thorium in water. Radionuclide concentrations obtained were compared with the terrestrial gamma radiation dose rate measured around the area. A good relation was observed between uranium and thorium concentrations with gamma dose rate obtained around the area while no relation was found between the potassium concentrations with gamma dose rate. Significance of the results obtained is discussed

Interaction Between Electromagnetic Field and Human Body for Dual Band Balanced Antenna Using Hybrid Computational Method

yesThis paper describes a hybrid computational method which efficiently models the interaction between a small antenna placed in proximity with the human body. Results for several test cases of placed in different locations on the body are presented and discussed. The near and far fields were incorporated into the study to provide a full understanding of the impact on human tissue. The cumulative distribution function of the radiation efficiency and absorbed power is also provided. The antennas are assumed to be operating over the 2.4 GHz and 5.2 GHz WLAN frequencies