Indartono, in this paper explain that soybean seed quality decline if easy packaging and storage techniques are not good. This research aims to study the technique of packing and room temperature on soybean seed quality during the four months of storage. Research conducted at the Laboratory of Postharvest and Alsintan, BPTP Central Java, with a Completely Randomized Design 3 (three) factors and two replications. The first factor varieties (Burangrang, Willis, and Baluran), the second factor technique packaging (vacuum and without vacuum), and the third factor storage temperature (27-29 ° C and 6 ° C). During the four storage observed changes in water content, shrinkage and the weight of soybean seed germination. The results showed that the shrinkage weight, water content and temperature of storage space does not give real effect to the power of germination for 4 four months of storage, and storage techniques vacuum (vacuum) to give an average power of germination is higher than without vacuum treatment, but a statistically not significantly different from other treatments by Duncan´s test 95% confidence level for all varieties Key words: soybean, room temperature storage, packaging techniques, the germinated

Indartono, in paper use of alternative fuel gas for a motor vehicle fuel oil explain that in many ways energy efficiency can also be more than just preservation. Energy efficiency is an attempt to reduce the use of petroleum materials and the selection of alternative fuels. Improved energy efficiency is also an environmental demands, because it can reduce air pollution, acid rain control the incidence and protect the earth from global warming, which may occur due to buildup of carbon dioxide in the atmosphere. One of the alternative fuel is CNG. In motor vehicles, CNG usage advantages include lower price, the exhaust gas is cleaner burning results and the potential source is still very large. Keywords: energy efficiency, fuel, CNG

Kegiatan pengabdian dilakukan di industri ukir tembaga dan kuningan Zazen Art Galeri. Keberadaan industri ukir tembaga dan kuningan di Kelurahan Mliwis Cepogo memberikan potensi yang besar terutama di bidang ekonomi, sosial, pendidikan dan lapangan kerja. Permasalahan produk ukir dengan desain rumit dan ukuran relative besar masih menjadi kendala dan perlu tambahan pengerjaan meliputi pengerolan, pembentukan, pengelasan dan penyelesaian akhir.Tujuan kegiatan ini adalah modifikasi instalasi mesin pembangkit kalor untuk pengerjaan pemanasan, potong, menyambung dan membentuk lengkung pada pipa dan plat. Modifikasi pengelasan LPG dilakukan dengan merekayasa las asetilin dengan beberapa komponen yakni tabung oksigen dan katup pengaturan (regulator oksigen), tabung LPG dan katup pengaturan (regulator LPG), selangan distribusi gas (oksigen dan gas LPG), alat ukur tekanan dan injektor nyala las. Hasil pengujian menunjukkan bahwa las LPG dapat diterapkan untuk pemotongan dan penyambungan plat dengan ketebalan di bawah 0,6 mm. Selanjutnya tungku berbahan bakar arang dapat diaplikasikan untuk pemanasan plat tebal dengan ketebalan di atas 1 mm.