This article covers partial results for research which was carried out to determine the effectiveness of municipal solid waste (MSW) recycling in Bandung metropolitan urban areas. It focuses on the results of waste fl ow analysis as basic information in developing better MSW management systems, especially in applying the reduce, reuse, recycle (3Rs) concept. The dependence upon fi nal disposal sites in MSW management and the diffi culties in fi nding disposal sites have resulted in interest in the 3Rs concept. In this research, the determination of waste compositions and the potential of recycling were evaluated based on data from interviews with householders, members of the nonhousehold sector, and recycling actors and on measurement. The informal sector activities observed were mainly from handcart crews, mobile scavengers, transfer point scavengers, fi nal disposal scavengers, waste traders, and recycling business people at several locations in Bandung and Cimahi cities. The estimated waste recycling and composting by stakeholders has not yet achieved 10% (wet weight) of the total waste generated. As in other major cities in developing countries, the informal sectors hold an important role in the recovery of usable materials from waste. However, inorganic waste recycling activities from this sector have not even reached 8% (wet weight) of the total waste generated.

In the attempt to implement sustainable development, there is a definition that the use of natural source to keep it uses by the next generation well, both in quantity and quality. It needs to be supported by caring the environment both by the government and the community itself. The community awareness can be seen at its role on the management of domestic garbage. Several socio-economic factors such as age, sex, education, income, job, and the knowledge of environment have effect on community awareness in the management of domestic garbage. This study used logistic regression model which aimed at measuring to what extend the effect of the socio-economic factors to domestic garbage management in East Nusa Tenggara Province in 2013. It uses secondary data of Environmental Awareness Behaviour Survey that done in 2013 by the Central Agency on Statistics. The result of this study used α = 0,05, showed that the variable of sex, age group of  the head household among 40-59 years old and the knowledge of environment did not have effect on household garbage management behavioral. Level education of the patriarch and capital income affected positively on domestic garbage management behavioral. Variable of age group of the patriarch above 60 years old did negatively affected to the domestic garbage management behavioral. Although knowledge about the environment did not affect eco-friendly behavior, but the knowledge about the environment has to be continued to be disseminated to the public. Right knowledge about the behavior of environmental awareness is a major component of internal factors that can drive change one's attitude to be more concerned about the environment

In Nusa Tenggara Timur the appearance of child labour affected by the living environment and the household characteristic. The descriptive analysis showed that in 2011 there were 4,37 % child labour in NTT. The inference analysis showed the probability of children who live in urban area become a child labour was 0,56 times than who live in rural area, the probability of children who live in a region that there was school available become a child labour is 0,43 times than children who live in a region without school. Children with head of household work in formal sector had less probability become a child labour than children with head of household not working/work in informal sector, the probability was 0,47 times. Probability of children with head of household education highschool or above become a child labour 0,58 times than children with head of household education secondary school or less. Probability of children with head of household sex was male become a child labour 0,70 times then whose head of household sex was female. A boy have probability become a child labour 1,36 times than a girl. This result showed that living environment and household characteristics influence the appearance of child labour in NTT.

Penelitian ini bertujuan untuk memperoleh data curah hujan dari TRMM dan pos hujan yang dapat dipakai pada analisis hidrologi. Analisis ini dilakukan pada 24 data pos hujan yang dikunci oleh grid TRMM dengan resolusi 0,25° x 0,25°. Dalam setiap grid TRMM terdapat minimal 1 data pos hujan sehingga berdasarkan persebarannya pada penelitian ini terdapat 8 grid TRMM. Hasil yang diperoleh adalah nilai koefisien korelasi pada basis hujan bulanan sebesar 0,3218 – 0,9351. Nilai RMSE pada basis hujan bulanan sebesar 69,46 – 856,25. Nilai error pada basis hujan harian maksimum tahunan (HHMT) sebesar 0,0597 – 1,1138. Nilai error pada basis hujan harian sebesar 0,0023 – 0,0321. Data curah hujan yang lolos uji karakteristik hujan rencana ialah data yang memiliki nilai R100/R2 antara 1,5–3,4 serta grafik lengkung faktor pertumbuhannya memiliki trend yang relatif sama dengan data hujan lainnya. Data satelit yang lolos uji karakteristik hujan rencana ialah yakni TRMM I, II, III, IV, V, VI dan VIII. Pos hujan yang lolos uji karakteristik hujan rencana yakni Nifukani, Nule, Kesetnana, Oinlasi, Tilong, Lasiana, Penfui, Tarus, Oeletsala, Naibonat, Tubutesbatan, Raknamo, Camplong, Batuliti, dan Baun.

This experimental study examines the characteristics and performance of axial magneticgear by using a variation of the rectangular neodymium-iron-boron (NdFeB) magnetic layerwhich is assembled on an acrylic disc. The aim is to reduce magnetic reluctance which canincrease torque and facilitate the manufacture of magnetic gear. In addition, it can reducethe use of NdFeB permanent magnets instead of sectoral magnets. An appropriate methodfor predicting the transmitted torque produced by axial magnetic gears with four rectangularmagnetic layers is demonstrated using the output power approach. The results show that theperformance of axial magnetic-gear with 4 layers tends to be similar to the performance ofa direct drive. Tests on the 2400 rpm rotation with the loading of 200, 300 and 400 ohmsrespectively showed a maximum torque of 2.24 (Nm) 10-3, 1.56 (Nm) 10-3, and 1.1 (Nm).The results of this paper appear to be useful for the development of axial magnetic-gearindustrial applications.