Development of software for conducting auctions on eBay online auction for the Google Android platform

Операційна система Google Android відкриває великі можливості для розробки програмного забезпечення мобільних пристроїв. Android має потенціал для усунення перешкод на шляху до успіху в справі розробки та реалізації нового покоління програмного забезпечення для мобільних пристроїв. Точно так же, як стандарти платформ PC і Macintosh створили ринки для настільного і серверного програмного забезпечення, Android, надаючи стандартне середовище для мобільних додатків, дозволить створити ринок мобільних додатків, надавши розробникам можливість отримувати більший прибуток від реалізації своїх програмних продуктів.Google Android operating system opens up great opportunities for the development of software of mobile devices. Android has the potential to eliminate the obstacles to success in the development and implementation of a new generation of software for mobile devices. In the same way as standard PC and Macintosh platforms have created a market for desktop and server software, Android, providing the standard environment for mobile applications will create a market for mobile applications, giving developers the ability to make large profits from the sale of its software products

Proses Penuaan (Aging) Pada Paduan Aluminium AA 333 Hasil Proses Sand Casting

The use of aluminum alloys AA 333 as automotive component is progressively expand with the expanding desire to lose weight from the used component. However, the as-cast product from aluminum alloys AA 333 is still having low mechanical properties, so it needs the other process to increase the hardness value; one of the processes is through heat treatment process. The heat treatment process for this materials is T6 process (artificial aging), including: solution treatment at temperature 525 oC for 8 hour, quenching and various time of aging process. Aging was conducted at 180 oC for 25 minutes, 1 hours, 5 hours, 8 hours and 16 hours respectively. For aging 5 hours, the aging temperature was applied various from 110 oC, 150 oC, 180 oC, 200 oC to 250 oC, so the expected result from this research is to know the influence of the variation to morphological change of microstructure and hardness value of aluminum alloys AA 333. The results had indicated that the aging process at 180 oC caused the increased of the hardness value of each phases: α-Al matrix, primary silicon, eutectic Al-Al2Cu and Al15 (Fe, Mn)3Si2 and also caused the increased of the hardness value of aluminum alloys AA 333, from the condition of as-cast, as-quench, aging process for 25 minutes, 1 hours, 5 hours, 8 hours and 16 hours. And others results had indicated that the aging process for 5 hours also caused increasing of hardness value of each phases. The aging process (at 180 oC) for 8 hours and 5 hours) represented the most optimum time to obtained the best combination from phase distribution, that spread over in the rich matrix of aluminum and the size measured from each phase, therefore giving the highest hardness value

A note on the symmetric difference in lattices

The paper introduces a definition of symmetric difference in lattices with negation, presents its general properties and studies those that are typical of ortholattices, orthomodular lattices, de Morgan and boolean algebras

Generalized probabilities in statistical theories

In this review article we present different formal frameworks for the description of generalized probabilities in statistical theories. We discuss the particular cases of probabilities appearing in classical and quantum mechanics, possible generalizations of the approaches of A. N. Kolmogorov and R. T. Cox to non-commutative models, and the approach to generalized probabilities based on convex sets

Quantum storage via refractive index control

Off-resonant Raman interaction of a single-photon wave packet and a classical control field in an atomic medium with controlled refractive index is investigated. It is shown that a continuous change of refractive index during the interaction leads to the mapping of a single photon state to a superposition of atomic collective excitations (spin waves) with different wave vectors and visa versa. The suitability of refractive index control for developing multichannel quantum memories is discussed and possible schemes of implementation are considered.Comment: 6 pages, 2 figure

Pengaruh Penggunaan Lumpur Limbah Industri Penyamakan Kulit Terhadap Penyerapan Krom Pada Tanaman Sawi

The aims of research was to study the effect of contaminated soil with tannery industrial wastesludge, and absorption level of chromium by the green mustard. The experiment was carried out in Kayen, Sleman, Yogyakarta for 3 months. The form of a pot experiment using a full factorial design 2x3 and 2 additional treatments as a control was set out in Completely Randomized Design (CRD), using 15 units of pots as replicates. The first factor consists of two varieties of mustard, which is kailan (chinesse kale) and spoon mustard greens (pak choy green). The second factor consists of 3 doses of leather tanning industry waste, i.e 500 mg chromium/kg soil, 1000 mg chromium/kg soil, 1500 mg chromium/kg soil. Control treatment was the planting of two varieties of mustard without the addition of sewage sludge. Preparation of sewage sludge was carried out by mixing the sewage sludge into the planting medium consisting of a mixture of soil, compost and manure treatments in accordance with the treatment. Observations made by harvesting the plants at the age of 3 and 6 weeks after planting for the next shoots and roots of plants and chromium content of growing media was analyzed. The results showed that the accumulation of chromium in the roots of plants was greater than in the plant canopy for the two types of mustards either good harvested at the age of 3 or 6 weeks after planting, and the content of chromium in plant tissues of mustard as part of vegetable that generally consumed exceeds the threshold of human daily consumption (0,035 mg/kg daily consumption)

Effect of Trust and Ease Of Popularity of Interest Transaction System to Improve Online Website PT KAI (A Study on Passenger Train in Semarang Tawang Station)

The purpose of this research is to Investigate the Effects of Trust, Easy of System, Popularity System and the effect the popularity of the system on an on-line transaction. The study was conducted at passengers KAI Semarang Tawang Station, the sample size is about 125 passengers. The data is processed using the Structural Equation Modeling (SEM) roomates assisted by the application program of Analysis of Moment Structure (AMOS) version 18.0. According to the analysis, it is concluded as the followings: easy of system has a positive effect on the popularity of the system; trust has a positive effect on the popularity of the system; popularity of the system has a positive effect on the on-line transaction; easy of sytem has a positive effect on the on-line transaction; trust has a not effect on the on-line transaction