1,724 research outputs found
Watershed Survey and Pilot LCC Project
This describes two projects accomplished in 2010 by the Three Ponds Protective Association (TPPA) and several partners to identify and reduce soil erosion due to storm water runoff into the Milton Three Pond
IMPLEMENTASI ALGORITMA SERPENT UNTUK ENKRIPSI DAN DEKRIPSI DATA FILE PADA PONSEL BERBASIS ANDROID
Pemilik handphone dapat bertukar data file dengan pemilik handphone lainnya dengan
menggunakan media internet maupun fasilitas layanan handphone. Akan tetapi, pengguna tidak menyadari
apakah data file yang terkirim tersebut terjaga keamanan dan kerahasiaannya. Tujuan dari penulisan skripsi
ini adalah dapat menjaga keamanan penyimpanan data dan pengiriman data file pada sistem operasi Android
dengan mengimplementasikan algoritma serpent untuk mengenkripsi dan mendekripsi data file. Handphone
yang digunakan adalah handphone yang mendukung Android karena aplikasi ini akan di-install terlebih
dahulu pada handphone pengguna. Metodologi penelitian yang digunakan penulis adalah metode Rational
Unified Process (RUP) yang terdiri dari 4 tahapan yaitu : tahap Inception, Elaboration, Construction, dan
Transition. Evaluasi aplikasi dilakukan dengan menyebarkan kuesioner. Penulis berharap aplikasi enkripsi
dan dekripsi data file pada ponsel berbasis Android menggunakan algoritma serpent dapat membantu
pengguna dalam menjaga keamanan dan kerahasiaan penyimpanan data file yang dikirim dan diterima
Brane Cube Realization of Three-dimensional Nonabelian Orbifolds
We study D-branes on three-dimensional orbifolds where
are finite subgroups of SU(3). The quiver diagram of \ZnZn \in SU(3)
can be expressed in three-dimensional form. According to the correspondence
between quiver diagrams and brane configurations, we construct a brane
configuration for {\bf C}^3/\ZnZn which has essentially three-dimensional
structrue. Brane configurations for nonabelian orbifolds \C^3/\Delta(3n^2)
and \C^3/\Delta(6n^2) are obtained from that for \C^3/\ZnZn by certain
quotienting procedure.Comment: 19 pages, 14 figure
Pengaruh Kondisi Penyimpanan terhadap Pertumbuhan Jamur pada Gambir
Gambir is the extracted form of dried leaves and twigs of Uncaria gambier (Hunter) Roxb plant. Gambir is frequently experiencing quality decline due to unfavourable storage condition that accelerate the mold growth. The mold growth prevention has been done through a study by using teratments of package types (A) consisting of carboard paper (A1), plastic sack (A2), and jute sack (A3) as well storage conditions (B) consisting of open space at 25–290C with humidity of 70% (B1) and closed space/warehouse at 24–260C with humidity of 80% (B1). Observation was done for 12 weeks in term of mold growth, yeast types identification and water content. Results of mold type identification by using microscope showed the Aspergillus sp. genus consisting species of Aspergillus Niger, Aspergillus fumigatus and Penicillium. The storage condition had effect on water content and mold growth. The lowest rate of water content increment during storage was found on A3B1 treatment (0.16%) and the highest one was on A2B1 treatment (0.64%). The lowest rate for weekly mold growth was found on A3B1 treatment (78,330 colony/g) at open spacestorage with temperature of 25–290C and humidity of 70% using yute sack. The yute sack package is better for storage of gambir product in term of water content increment and mold growth
Finding of no significant impact and decision notice for Riverside allotment management plan/agreement
8 pp.
This allotment is located approximately 50 air miles east of Burns, Oregon.
Captured August 7, 2007.Proposes to remedy problems found in analysis determining that upland watershed function, riparian and wetland areas watershed function, ecological processes, water quality, and native Threatened and Endangered, and locally important species standards were not being achieved. Includes adjusting the season of use and pasture use periods to allow for periodic growing season rest for key forage species in each pasture, constructing a reservoir in a nearby ephemeral drainage and fencing the creek to leave one emergency use water gap, fencing the creek and installing a year-round water gap(s) if reservoir is not successful, and piping water from an adjacent pasture where a water storage tank would be constructed
Siblings, asthma, rhinoconjunctivitis and eczema: a worldwide perspective from the International Study of Asthma and Allergies in Childhood.
BACKGROUND: Associations of larger families with lower prevalences of hay fever, eczema and objective markers of allergic sensitization have been found fairly consistently in affluent countries, but little is known about these relationships in less affluent countries.
METHODS: Questionnaire data for 210,200 children aged 6-7 years from 31 countries, and 337,226 children aged 13-14 years from 52 countries, were collected by Phase Three of the International Study of Asthma and Allergies in Childhood (ISAAC). Associations of disease symptoms and labels of asthma, rhinoconjunctivitis and eczema were analysed by numbers of total, older and younger siblings, using mixed (multi-level) logistic regression models to adjust for individual covariates and at the centre level for region, language and national affluence.
RESULTS: In both age groups, inverse trends (P < 0.0001) were observed for reported 'hay fever ever' and 'eczema ever' with increasing numbers of total siblings, and more specifically older siblings. These inverse associations were significantly (P < 0.005) stronger in more affluent countries. In contrast, symptoms of severe asthma and severe eczema were positively associated (P < 0.0001) with total sibship size in both age groups. These associations with disease severity were largely independent of position within the sibship and national GNI per capita.
CONCLUSIONS: These global findings on sibship size and childhood asthma, rhinoconjunctivitis and eczema suggest at least two distinct trends. Inverse associations with older siblings (observations which prompted the 'hygiene hypothesis' for allergic disease) are mainly a phenomenon of more affluent countries, whereas greater severity of symptoms in larger families is globally more widespread
Prarancangan Pabrik Etilen Glikol dari Etilen Oksida dan Air dengan Proses Hidrasi Non Katalitik Kapasitas 220.000 Ton/Tahun
Ethylene glycol or EG is an organic compound that is colorless, odorless, and intangible fluid. Generally, ethylene glycol is used for extra fiber in polyester, materials of PET containers, antifreeze and coolant in the engine. In Indonesia generally and commercial, ethylene glycol is used as raw material for the textile industry (polyester) as much as 97.34% and 2.66% is used as raw materials for the manufacture of paints addition, liquid glue, solvent , printing ink , the ink for pen, cosmetics, and anti-freeze materials. This need fill by PT Polychem Tbk, while shortcoming fill by importing from different countries. Plant design of ethylene glycol plant from ethylene oxide and water with non-catalytic hydration process capacity of 220,000 tons/year is planned to be established in 2025 to meet the needs of ethylene glycol in Indonesia, there by reducing the number of imports. Besides the raw materials and the location in Tangerang, Banten area of 22,000m2 and with 184 employees strongly supports the establishment of this factory.
Plant design ethylene glycol from ethylene oxide and excess water, with a mole ratio of 1:20. Production capacity of 220,000 tons /year is planned to operate for 330 days per year. The process of making ethylene glycol is carried out in a plug flow reactor continuously without using a catalyst. In the reactor, the process of making ethylene glycol maintained that take place in the liquid phase, irreversible, exothermic, and non-isothermal adiabatic temperature and pressure 190C-130,34C up to 18 atm. Conversion achieved was 99.8% with 91.8% of ethylene glycol selectivity. Byproducts produced in the form of diethylene glycol and triethylene glycol. In the process of ethylene oxide are needed as much 23,529.7386 kg/hour and as much water as 192,831.6709 kg/hour. The products produced in the form of ethylene glycol as 27,777.7778 kg/hour. Utilities include water provision process support for 720,341.4345 kg/h obtained from Tangerang Cisadane river water, the provision of saturated steam at 34827.955 kg/hour of fuel boiler using fuel oil in the form of 11,482.4919 L/hour for two boiler, electrical needs of 2,720.3 kW obtained from the PLN and a generator set as a backup.
Plant design of ethylene glycol using a fixed capital of Rp 968,080,018,924,- and a working capital of Rp 1,809,340,555,217,-. Based on the economic analysis of the feasibility of establishing a factory, then the ethylene glycol plant is profitable and worth is established. Profits earned before taxes was Rp 655,476,883,524,- per year after taxes 30% profits reached Rp 458,763,818, 467,- per year. Percent Return On Investment (ROI) before tax after tax 67.70% and 47.39%. Pay Out Time (POT) before tax for 1.29 years and 1.7 years after tax. Break Even Point (BEP) of 48.5%, and Shut Down Point (SDP) amounted to 36.87%. Discounted Cash Flow (DCF) accounted for 25.87%
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