Analysis of cogging torque in brushless machines having nonuniformly distributed stator slots and stepped rotor magnets

A simple analytical technique is proposed for synthesizing the cogging torque waveform of a permanent magnet brushless machine from the cogging torque waveform that is associated with a single stator slot. The machine may have either uniformly or nonuniformly distributed stator slots and/or a skewed rotor, in which the skew is realized by circumferentially displacing the magnets of each pole. The technique is validated by finite element analysis and measurements

Keragaman Genetik, Herttabilitas Dan Koefeien Variasi Genetik Beberapa Karakter Galur Mutan Kedelai (Glycine Max (L.) Mot.) Genetic Variance, Heritability and Genetic Variance Coefficient of Some Soybean (Glycine Max (L.) Merr.) Mutant Characters

Analysis of genetic variance, heritability and coefficient of genetic variance were carried out for seven characters of soybean mutant lines in M3 generation, which were conducted at CAIR-Field Station, Pasar Jumat, Jakarta.Results showed that the highest of heritability value about 85.50% was obtained for seed weight, and followed by number of pods,biomass of stem and shelpedpods, root/stem ratio, seed weight/ Zpods ratio, and the lowest heritability value was biomass of root around 26,83% Analysis of coefficient of genetic variance from seven characters of soybean mutants indicated value ranging from 10.00-39,50%.From the result of experiment can be concluded that gamma irradiation produced high genetic variability in M3 generation and contributed positively for crops improvement through breeding programm

Pengawasan Pemerintah Kota terhadap Usaha Industri Batu Bata di Kota Pekanbaru Tahun 2010-2013

The rapid development of the city of Pekanbaru today we can see from the many infrastructure development in almost all regions of the Provincial Capital. With the rapid development of the construction would affect the increase in demand for building materials. One of the raw materials of the building is brick. It is utilized by most people,in the city of Pekanbaru, especially in Sail region Tenayan Raya sub-district. Phenomena occurring in the field is not only a positive impact generated solely by the efforts of industrial but also the negative impact is also important. Hence the need for intensive monitoring effort so that the brick industry in the city of Pekanbaru this could well ordered.The purpose of this study was to see how the oversight efforts undertaken by the Government of the city of Pekanbaru On brick Industry Effort and what factors are an obstacle in the implementation of the surveillance . This study uses qualitative methods with data collection techniques include observation, interview and questionnaire which is then processed and analyzed. Analysis of these data the author uses descriptive analysis tools are then presented in the form of a table of percentage as well as the description of logical expressions explanation in order to be understandable and comprehensible.Based on the results of research that the control conducted by the Government of the city of Pekanbaru, in this case the Department of industry and trade through Observation, Inspection and Reporting still less done. This is due to the presence of constraints that become obstacles in the implementation of the supervision of which is the human resources, rules (regulation), facilities and infrastructure.Keywords : City Government, Control, Industrial Busines

Sinergisitas antara Pemerintah Pusat dan Pemerintah Daerah Serta Swasta dan Masyarakat dalam Pembangunan Rumah Susun Sederhana Sewa (Rusunawa) di Kota Pekanbaru (Studi Kasus di Kecamatan Tenayan Raya)

This research is motivated by Act No. 25 of 2004 on the National Development Planning system. Then followed the Law No. 20 of 2011 on the Flats. The problems in the implementation of development Rusunawa Pekanbaru city because the city has the problem of slums and urban spatial planning issues, so that the city government is based on real conditions in the field to submit a proposal to the central government in order Rusunawa development. The process of construction of rental flats are finished but until now have not been able to the public housing buildings inhabited, it is in because the central government had not occupy the contents of the draft agreement in the public housing development agreement, which explained that if the delivery of public housing construction is completed, the building is handed over kepemerintah center in conjunction with a budget that has been agreed, but after the construction is completed rusunawa occupy the central government can not draft the agreement so that the private sector can not be handed over to the central government.Based on the analysis and observation in the field can be concluded that the synergy of the central government, local government, private sector and communities to the development of a simple flat rental (public housing) in the city of Pekanbaru (case study in the district Tenayan highway) is not maximized carried. While the factors that inhibit synergy central government, local government, private sector and communities to the development of a simple flat rental (public housing) in the city of Pekanbaru (case study in the district Tenayan highway) is a system of central government funding, weak local government resources humans, whereas the private sector constraints in terms of building public housing handover with the central government.Keywords: Synergy, Development, Rusunaw

Penerapan Metode Eksplorasi dalam Meningkatkan Hasil Belajar Matematika pada Peserta Didik Kelas IX SMP Negeri 5 Campalagian

This research is an experimental research which observed the influence of the use of exploratory method in improving mathematics learning outcomes in the students of Class IX of SMP Negeri 5 Campalagian. The sampling technique used in this research is random sampling. Sample determination was done randomly from 3 classes with 99 a population, each class has the same chance of being sampled. IXB class as experimental class taught by using exploration method with 25 students and IXA class as control class taught by using conventional learning, there is 25 people of learn. Each class is taught in the same frequency of meetings and on the same subject. The experimental class uses exploratory method and control class using conventional approach. The results of mathematics learning are obtained on prêt-test and post-test. Thus, in the experimental class obtained prêt-test average score of 56.00 while the post-test of 75.40. In the control class obtained the average score of pre-test of 61.40 while in the post-test of 67.60. Judging from the average result of the students showed a significant difference, seen from the results of hypothesis testing obtained value of 2.136, while for the value of which means that, it can be said that there is a different application of exploratory methods with the application of conventional methods of mathematics learning outcomes in participants Students Class IX SMP Negeri 5 Campalagian

Induksi Kalus Dan Regenerasi Tanaman Dari Kultur Antera Padi Fl Hybrid (Oryza Sativa L.) * [Callus Induction and Plant Regeneration From Anther Cultures of Rice Hybrid Fl (Oryza Sativa L.)]

A haploid breeding program was initiated to develop doubled haploid blast tolerance rice breeding via anther culture.Blast tolerant variety (Laka) was crossed with Kencana Bali (sensitive to blast).Anthers from F1 were cultured on two kind of media (combination of N6 macro salt and MS micro salt) containing 1 mg/l NAA + 0,1 mg/l kinetin called medium-1 and another one containing 1 mg/l 2,4-D + 0,1 mg/l kinetin called medium-2.Anthers were treated with cold shock (4 °C)for 5 and 10 days before cultured.Results of experiment showed that F1 plants derived anthers were able to form call Number ofplantlets were produced during anthers culture consisted of 482 green plants and 50 albinos. Most of green plants did not produced root.Root growth of plantlets were induced with 1.5-4.5 mg/l IBA in MS medium

Probing Cosmic Acceleration Beyond the Equation of State: Distinguishing between Dark Energy and Modified Gravity Models

If general relativity is the correct theory of physics on large scales, then there is a differential equation that relates the Hubble expansion function, inferred from measurements of angular diameter distance and luminosity distance, to the growth rate of large scale structure. For a dark energy fluid without couplings or an unusual sound speed, deviations from this consistency relationship could be the signature of modified gravity on cosmological scales. We propose a procedure based on this consistency relation in order to distinguish between some dark energy models and modified gravity models. The procedure uses different combinations of cosmological observations and is able to find inconsistencies when present. As an example, we apply the procedure to a universe described by a recently proposed 5-dimensional modified gravity model. We show that this leads to an inconsistency within the dark energy parameter space detectable by future experiments.Comment: 8 pages, 7 figures; expanded paper; matches PRD accepted version; corrected growth rate formula; main results and conclusion unchange

Kekalahan Calon Independen dalam Pemilhan Bupati dan Wakil Bupati Kabupaten Karimun Tahun 2015

Participation of Independent candidates in general election of regional head based on many disappointments felt both from among themselves and society at large who feel harmed by the mechanism of election conducted by political parties. Karimun district is one of district that follow general election of regional head simultaneously on December 9th, 2015 present the candidates who used individual and independent path. In general election of regional head result of karimun district, the independent candidats suffered defeat, but there is interesting thing to be examined, difference of vote acquisition that earned by independent candidates is different with support terms that submitted by independent candidates. The aim of this research was to determined the difference because between vote acqusition that earn by independent candidates and support terms that submitted by independent candidates.This research using quantitative research aproach with kind of descriptive research. Data collection techniques used are documentation, and interview. Data analysis used limited to data peocessing techniques or facts gained by developing relevant categories with the aim of research and interpretations that are guided by appropriate theoryThe result of this research show the difference of vote acquisition and support terms caused by the existence of legal support terms caused by the existence of legal suppor uncertainty, support in the form of ID Cards only as a condition only so than can maniputate. This is avidenced by the fact that there are still people who withdraw their support by filling out the revocation form that provided by the KPU when recapitulation support

Light Deflection, Lensing, and Time Delays from Gravitational Potentials and Fermat's Principle in the Presence of a Cosmological Constant

The contribution of the cosmological constant to the deflection angle and the time delays are derived from the integration of the gravitational potential as well as from Fermat's Principle. The findings are in agreement with recent results using exact solutions to Einstein's equations and reproduce precisely the new $\Lambda$-term in the bending angle and the lens equation. The consequences on time delay expressions are explored. While it is known that $\Lambda$ contributes to the gravitational time delay, it is shown here that a new $\Lambda$-term appears in the geometrical time delay as well. Although these newly derived terms are perhaps small for current observations, they do not cancel out as previously claimed. Moreover, as shown before, at galaxy cluster scale, the $\Lambda$ contribution can be larger than the second-order term in the Einstein deflection angle for several cluster lens systems.Comment: 6 pages, 1 figure, matches version published in PR