Adaptasi Beberapa Varietas Bawang Merah (Allium Ascalonicum L.) Pada Dataran Rendah Dengan Pemberian Pupuk Kandang Dan Npk

The adaptation of some shallot varieties has been conducted with the application of chicken manure andNPK fertilizer. The goal of this research is to know the adaptation of some shallot varieties in lowlandapplication of chicken manure and NPK fertilizer. The research was conducted at community land onPasar 1 Medan Selayang, Medan with altitude of 25 meters above sea level from May to July 2012. Usingrandomized block design. The first factor is three shallot varieties are Kuning, Medan, and Maja. Thesecond factor is four types of fertilizer; control, 240 g/plot chicken manure, 48 g/plot NPK, and chickenmanure plus NPK. The results showed that the varieties and fertilizer are significant in the fresh weightand number of cloves but not significant in plant height, number of tillers per hill, and dry weight. Whereas the interaction between varieties with fertilizers are not significant in all parameters. Heritability valuesranged from 0.03 - 0.87. All of the varieties tested have not been able to adapt well in the lowland interms of production so further studies using different varieties in the lowland is suggested

Textile diamond dipoles for body centric communications at 2.45GHZ and 5.8GHZ

This study proposes textile diamond dipoles for body centric communication that operate at 2.45GHz and 5.8GHz. The proposed antennas have been rigorously tested under wearable and body centric measurements. Both substrates and conducting parts of the diamond dipoles are entirely made of textiles; which is deemed fit for wearable communications. Experiments such as bending, wetness and SAR were performed to investigate the antennas' performance for body communication realization. Bending was found not to cause any significant performance disruption. On the other hand, since the proposed antenna is not made of water-proof material, the performance was distorted under wet condition. However, once the antenna was dried out, the original performance was achieved. SAR measurement was also conducted and significant SAR values were observed when placing the proposed diamond dipoles close to human body

Influence of Water Quality Index (WQI) on biotic indices of benthic macroinvertebrate at highland rivers in Kelantan and Pahang

A physicochemical survey of water quality and benthic macroinvertebrates at two rivers namely Sungai Dekong and Dawai in Lojing Highland was conducted on 23 and 24, January 2014. Three stations were selected for physicochemical water quality, one station at Sungai Dekong and two other stations at Sungai Dawai. On the other hand, benthic macroinvertebrates were collected at nine stations, i.e. three stations at Sungai Dekong and the other six stations at Sungai Dawai. Result shows that, Station 1 (Sungai Dekong) recorded Very Poor Biological Monitoring Working Party, BMWP (2.0-12.0), Poor Average Species per Taxon, ASPT (2.0-4.0), Poor Citizen Monitoring Biotic Index, CMBI (2.0-2.3), Fairly Poor Family Biotic Index, FBI (5.3-6.0) and Poor Ephemeroptera, Plecoptera and Trichoptera or EPT Index (0.0). However, the Water Quality Index WQI (70.01) falls into Class III which can be categorized as Slightly Polluted River. On the other hand, Station 2 (Sungai Dawai downstream) recorded better Biotic and Ecological Index but lower Water Quality Index as compared to Station 1. It recorded Moderate BMWP (26.0-84.0), Very Good ASPT (5.3-6.5), Good CMBI (2.7-3.2), Excellent FBI (3.4-4.3) and Moderate EPT Index (2.0-5.0). However, the WQI (54.99) falls into Class III, and can be categorized as Polluted River. Finally, Station 3 (the most upstream station at Sungai Dawai) recorded almost similar Biotic and Ecological Index with Station 2 but in terms of WQI revealed a significant difference. Station 3 recorded Poor BMWP (34.0-46.0), Very Good ASPT (6.5-6.8), Good CMBI (2.9-3.1), Excellent FBI (3.1-3.9) and Moderate EPT Index (3.0-4.0). However, it's WQI (84.48) falls into Class II which could be categorized as Cleaned River. As a conclusion, physicochemical river water quality was not the only contributing factor to the Biotic Index at the highland rivers as per other factors such as river substrates, river discharge, aquatic plants, river riparian and river canopy

A 3-level endpoint detection algorithm for isolated speech and frequency-based features

This paper proposed a new approach for endpoint detection of isolated speech, which proves to significantly improve the endpoint detection performance. The proposed algorithm relies on the root mean square energy (rms energy), zero crossing rate and spectral characteristics of the speech signal where the Euclidean distance measure is adopted using cepstral coefficients to accurately detect the endpoint of isolated speech. The algorithm offers better performance than traditional energy-based algorithm. The vocabulary for the experiment includes English digit from one to nine. These experimental results were conducted by 360 utterances from a male speaker. Experimental results show that the accuracy of the algorithm is quite acceptable. Moreover, the computation overload of this algorithm is low since the cepstral coefficients parameters will be used in feature extraction later of speech recognition procedure

Extraction techniques and industrial applications of jatropha curcas

The fact that Jatropha curcas oil cannot be used for nutritional purposes without detoxification makes its useful as energy or fuel source, which will improve the domestic economy and provide job opportunities particularly in rural areas, where mechanical pressing is currently the most extensively used process to extract oil from seed. In this context, the main goal of this study is to provide a summary of several studies dealing with the currently employed oil extraction technologies, the physicochemical properties of bio-oils obtained from J. curcas, and the potential uses of Jatropha oil. The aim is to shed light on the main differences among the four types of oil extraction techniques currently employed and to highlight their most appropriate applications. If tapped efficaciously, then these techniques could prove to be extremely helpful in these days of power and environmental crises

On Isolated Conformal Fixed Points and Noncritical String Theory

We search for the gravity description of unidentified field theories at their conformal fixed points by studying the low energy effective action of six dimensional noncritical string theory. We find constant dilaton solutions by solving both the equations of motion and BPS equations. Our solutions include a free parameter provided by a stack of uncharged space filling branes. We find several AdS_p\times S^q solutions with constant radii for AdS_p and S^q. The curvature of the solutions are of the order of the string scale.Comment: 17 pages, Latex fil

Leptogenesis via multiscalar coherent evolution with supersymmetric neutrino see-saw

A novel scenario of leptogenesis is investigated in the supersymmetric neutrino see-saw model. The right-handed sneutrino ${\tilde N}$ and the $\phi$ field in the ${\tilde L} H_u$ direction of the slepton and Higgs doublets start together coherent evolution after the inflation with right-handed neutrino mass $M_N$ smaller than the Hubble parameter of inflation. Then, after some period the motion of ${\tilde N}$ and $\phi$ is drastically changed by the cross coupling $M_N h_\nu {\tilde N}^* \phi \phi$ from the $M_N N N$ and $h_\nu N L H_u$ terms, and the significant asymmetries of ${\tilde N}$ and ${\tilde L}$ are generated. The ${\tilde L}$ asymmetry is fixed later by the thermal effect as the lepton number asymmetry for baryogenesis, while the ${\tilde N}$ asymmetry disappears through the decays ${\tilde N} \to {\bar L} {\bar{\tilde H}}_u, {\tilde L} H_u$ with almost the same rate but opposite final lepton numbers.Comment: 4pages, 1 figure; submitted to Physical Review D. The renormalization group effects were include

The bonded macro fiber composite (MFC) and woven kenaf effect analyses on the micro energy harvester performance of kenaf plate using modal testing and Taguchi method

The demand on wind energy application will continue to increase as fossil fuel prices keep increasing and the reservoir keeps decreasing. In wind energy, wind turbine application should be properly selected. The material selection for turbine blade fabrication is highlighted as well in recent research. For green material application, the usage of natural fiber reinforced composite, especially kenaf fiber, in the fabrication of wind turbines needs to be given due attention. Woven and unwoven kenaf fiber is employed to fabricate composite plates which replicate the simple turbine blade model. At the same time, Macro Fiber Composite (MFC) is attached to the kenaf plates for micro energy harvester purposes. There are two methods to attach the MFC used in this study which are surface bonded and embedding into the plate. In order to investigate the effects of bonding MFC technique, modal Testing analysis and Taguchi method is employed. It is found out that the damping percentage of both woven and unwoven kenaf plates increase at 100 % and 50 % respectively when bonded with MFC on their surfaces. Bonded technique is suggested as the most influenced factor in micro energy harvesting at the vibration range of 20 to 60 Hz. It summarized that, the kenaf woven type, the distance from structure neutral axis, the stiffness of structure, the excitation vibration and the neutral frequency of a structure are highlighted as the factors influencing the performance of micro energy harvester as well

Stationary structures in two-dimensional continuous Heisenberg ferromagnetic spin system

Stationary structures in a classical isotropic two-dimensional continuous Heisenberg ferromagnetic spin system are studied in the framework of the (2+1)-dimensional Landau-Lifshitz model. It is established that in the case of \vec S (\vec r, t)= \vec S (\vec r - \vec v t) the Landau-Lifshitz equation is closely related to the Ablowitz-Ladik hierarchy. This relation is used to obtain soliton structures, which are shown to be caused by joint action of nonlinearity and spatial dispersion, contrary to the well-known one-dimensional solitons which exist due to competition of nonlinearity and temporal dispersion. We also present elliptical quasiperiodic stationary solutions of the stationary (2+1)-dimensional Landau-Lifshitz equation.Comment: Archive version is already official Published by JNMP at http://www.sm.luth.se/math/JNMP