Pengembangan Dan Perancangan Tempat Tidur Bayi (Baby Box) Yang Ergonomis Menggunakan Software Autocad Denga Pendekatan Data Antropometri

Dengan semakin majunya sistem informasi diluar maupun didalamnegeri, Kini masyarakat lebih memperhatikan atau tertarik pada produk-produk yang dihasilkan harus lebih mempunyai nilai ringkas atau flexibledan tentunya sesuai dengan harga dari produk tersebut, Hal ini menjadisebuah acuan bagi pengembang inovasi produk yang mementingkankeinginan masyarakat untuk mendapatkan kekuatan dari kalangan konsumen,Dengan mempertimbangkan usulan dari para orang tua maka penulismencoba menawarkan prototype tempat tidur Balita yang sesuai dengandimensi antropometri tubuh bayi di Indonesia. Dengan maksud tempat tidurbayi tersebut mampu memberikan Kenyamanan dan keamanan bagi bayi,khususnya kepuasan bagi para orang tua dalam mengasuh atau memfasilitasianaknya. Metodologi penelitian dilakukan dengan penggalian data dariresponden menggunakan metode Quality Funcion Deployment (QFD) untukmengetahui keinginan dari konsumen, serta data antropometri untukmengetahui persentil dari ukuran yang diperlukan untuk merancang TempatTidur Bayi (Baby Box) yang sesuai dengan dimensi tubuh bayi di Indonesia.Hasil penelitian ini dapat diketahui atribut-atribut tempat tidur bayi yangsesuai dengan keinginan pelanggan meliputi : Tempat tidur mampu menahanberat dan gerakan bayi, Dilengkapi dengan kain tile pelindung dari gigitannyamuk, Adanya rak tempat untuk menyimpan pakaian bayi, Warna tempattidur yang cerah, Adanya kantong tas sehingga mudah dibawa. Ukurantempat tidur bayi dikembangkan berdasarkan penerapan data antropometridengan menggunakan persentil 5-th dan 95-th sehingga diperoleh ukurantinggi tempat tidur bayi adalah 80cm, panjang 110 cm, dan lebar 80cm

Perbandingan Teknik Pemajangan Sayuran Daun Untuk Mempertahankan Kesegaran Selama Penjualan

This study aimedto observe the effect of soakingthe root of leafy vegetableson thefreshnessduringsale. Vegetablesused werekangkungandgreen mustardfrom hydroponicsandconventionalcultivations. Treatments wereconsistedofsoakingwithaeratedwater, soakingwithunaeratedwater, soaking withaerated nutrient solution(EC 0.4mS/cm), displaying in mist sprayed (humidified) cabinet without soaking,andcontrol(neither soaking nor spraying). Soakingwas donein aglasscontainer(50cm length, 40cm width, 20cm height)andfilledwithwater±20liters/5 cm height. Parametersmeasured werewater content, leaf water potential,andleafdiscoloration. The results showedthatthe average room temperature and RH were found about 29oC and 80%. Respectively temperature and RH in the humidified cabinet were not much different from the ambiance. Soakingwithaeration was able to keep vegetables fresh without wilting process. Percentage of yellowing reached 10% of the total number within 5days for hydroponics kangkung, 2 days for conventional kangkung, 4days for hydroponics green mustard, and 2 days for conventional green mustard during the display. Vegetables displayed in the room with no treatment (control) were wilting consistently, their water content was decreasing, and their water potential tended to increase from the beginning. Thus, discoloration was more proper parameter for the soaked vegetables, while change of water content and water potential were more proper for non soaked or spayed vegetables

Pengaruh Suhu Dan Waktu Reaksi Pada Pembuatan Biodiesel Dari Minyak Jelantah

This study aimed to utilize waste cooking oil as raw material for biodiesel production and to study the influence of time and temperature of the transesterification reaction on the biodiesel production and its characteristics. The study was conducted by base transesterification with NaOH at a molar ratio of waste cooking oil to methanol 1:6. A combination of three levels of temperature (45⁰C, 55⁰C and 65⁰C) and three levels of reaction time (5 minutes, 10 minutes, and 30 minutes) was performed. Each treatment was conducted with 3 replications. The results showed that the yield of biodiesel was affected by temperature and reaction time. The optimum treatment combination was transesterification at temperature of 65⁰C and 30 minutes of reaction time, which produced 72,87 % methyl ester with a density of 0,85 g/ml, viscosity of 1,65 cSt and acid number of 0,07 %. Although the density and acid number of biodiesel produced met the biodiesel quality standards of Indonesia (SNI), it was not recommended to be used as fuel engine

Analysis of Water Balance on Soybean Cultivation (Glycine Max [L] Merr.) in Dry Land

Soybean is one important food crop in Indonesia after rice and corn. In 2008 to 2010, the amount of soybean harvest has fluctuated. One effort to increase the soybean yield is by using the expansion programs to exploit dry lands. However, water scarcity is the main problem faced in dry land cultivation. For this reason, study on optimalization of water use become very important and potential of water harvesting is needed to be explored. This study aimed to analyze and to partition the water balance at soybean cultivation, and also to explore the potential of rainwater harvesting. The experiment was conducted at the Integrated Field Laboratory of the College of Agriculture, University of Lampung from 15 October 2011 to 6 January 2012. The observations were carried out by constructing 8 plots, 2x1 m2 each, and in a longitudinal direction of the 5-6% slope. Four of the experimental plots were sealed with plastic liner and another four pots were left without liner. Each plot was equipped with a 1x0,5x0,5 m3 water storage pond at the down end of the plot. Physical properties were determined at the beginning experiment; while rainfall, soil moisture, and water surface of the ponds were monitored evey day. Soybean yield was weighed at the harvest time. The results showed that water balance could be divided into input and output. Water input was partitioned into rainfall 41,56% and irrigation 58,44%. Water output was partitioned into runoff 6,76%, percolation 13,74%, evapotranspiration 74,35%, moisture stored in the soil 0,20%, and irrigation surcharge 5,04%. Irrigation efficiency was found about 91%, while rainwater harvested contributed 20,74% of the irrigation total. Potential of productivity was found to be 3,3 ton soybean yield per ha, and potential water use productivity was about 0,74 kg soybean per m3 irrigation water

Pengaruh Lama Aerasi Terhadap Pertumbuhan Dan Hasil Tanaman Sawi (Brassica Juncea L.) Pada Hidroponik Dft (Deep Flow Technique)

This study aims to determine the effect of duration of aeration on the growth and yield of mustard plants (Brassica juncea L.), nutrient solution and electricity consumptions. The experiment was conducted in September and October 2013 at The Integrated Field Laboratory, and Land and Water Resources Engineering Laboratory, The Departement of Agricultural Engineering, The University of Lampung. The experiment consisted of four treatments of aeration intervals including N24M0 (control), N15M30 (15 minute on-30 minute off), N15M60 (15 minute on- 60 minute off) and N15M90 (15 minute on- 90 minute off). Each treatment was divided into 3 segments along the gutter, including R1 (segment near the aerator), R2 (middle segment chamfer) and R3 (section away from the aerator). The results showed that the use of a nutrient solution circulating pump with a flow rate of 0.27 cm/s is sufficient for EC, DO, pH fairly uniform along the gutter. Aeration with interval 15 minute on- 60 minute off turned out to produce the highest mustard crop (2,146 kg) with the lowest consumption of fertilizer and electricity by IDR 1753.00/kg

Developing a Family-Size Biogas-Fueled Electricity Generating System

The purpose of this study is to develop a family-size biogas-fueled electricity generating system consisting of anaerobic digester, bio-filter scrubber, and power generating engine. Biogas was produced from a pilot scale wet anaerobic digester (5-m3 capacity). The biogas was filtered using bio-scrubber column filled with locally made compost to reduce hydrogen sulfide (H2S) content. Biogas composition was analysed using a gas chromatograph and its H2S level was measured using a H2S detector. A 750-W four stroke power generating engine was used with 100% biogas. Biogas consumed by the generator engine was measured at different load from 100 to 700 W (13.3 to 93.3% of the rated power). Three replications for each load experiment were taken. Results showed that the total biogas yield was 1.91 m3/day with methane content of 56.48% by volume. Bio-filter successfully reduced H2S content in the biogas by 98% (from 400 ppm to 9 ppm). Generator engine showed good performance during the test with average biogas consumption of 415.3 L/h. Specific biogas consumption decreased from 5.05 L/Wh to 1.15 L/Wh at loads of 100 W to 700 W, respectively. Thermal efficiency increased with loads from 6.4% at 100 W to 28.1 at 700 W. The highest thermal efficiency of 30% was achieved at a load of 600 W (80% of the rated power) with specific biogas consumption of 1.07 L/Wh.Article History: Received Janury 16th 2017; Received in revised form 2nd June 2017; Accepted 18th June 2017; Available onlineHow to Cite This Article: Haryanto, A., Marotin, F., Triyono, S., Hasanudin, U. (2017), Developing A Family-Size Biogas-Fueled Electricity Generating System. International Journal of Renewable Energy Development, 6(2), 111-118.https://doi.org/10.14710/ijred.6.2.111-11

Pengaruh Daya Lampu Neon Terhadap Pertumbuhan Tanaman Pak Choi (Brassica Rapa L.) Pada Sistem Hidroponik Indoor

The purpose of this research was to observe the influence of neon lamp power (watt) on the growth of Pak Choiin an indoor hydroponic system. This research was done by implementing several pots of Pak Choi planting undersome different treatments of lighting. The treatment consisted of neon lamp 20 watt (N1), neon 2 x 20 watt (N2),neon 40 watt (N3), neon 2 x 40 watt (N4) in a growth chamber and one treatment under the sun lighting (N0).The result of the research showed that the treatment of 2 x 40 watt neon lamp (N4) turned out to have the bestresult at all variables measured. Then, it was followed by treatment of neon 40 watt (N3) and the lowest result wasin neon 20 watt (N1). The highest biomass harvested was 35 g in N4, followed by 18 g in N3, then the 15 g in N2and 4 g in N1. However, the highest ash content was in the treatment of 20 watt neon lamp (N1), and followed byN2 (neon 2 x 20 watt). Although, Pak Choi grown under the sun ray has the highest biomass harvested, but it hadthe lowest mineral content

Analisis Biaya Sistem Tebang-Angkut pada Pemanenan Tebu Bakar di PT. Gula Putih Mataram, Lampung Utara

The objective of this research was to calculate the cost of harvesting and transportation methods for sugar cane. The research was conducted at the PT. Gula Putih Mataram by observe the total cost of four methods of harvesting and transportation of sugar cane in the last harvesting season. These types were Bundle Cane (BC), Loose Cane with truck (LC-Truck), Loose Cane with Ford tractor (LC-Ford), and Loose Cane with John Deere tractor (LC-JD). The results showed that the total cost of harvesting and transportation per ton of sugar cane was Rp. 19,040.00 for the first method, Rp. 12,078.32 for the second one, and Rp. 27,631.12 for the third one and Rp. 36,500.86 for the last one. These results indicate that the Loose Cane with truck is the cheapest method for harvesting and transportation in PT. Gula Putih Mataram