scholarly journals Low cost digitalization of observation telescope by utilizing smartphone

2018 ◽  
Vol 197 ◽  
pp. 02002
Author(s):  
Ahmad Sohib ◽  
Niko Danusaid ◽  
Astri Sawitri ◽  
Bebeh Wahid Nuryadin ◽  
Rena Denya Agustina

Digitalization of telescopes used as learning media observation of the object is quite effective. However, the cost of operating this system becomes one of the obstacles. The approach to overcome the obstacle can be conducted by utilization of the present technology such as smartphone. Physical experiments have been conducted on the design of digitalization of the starter binoculars interfacing to Personal Computer (PC) using a smartphone. This experiment is aimed to design a more efficient digitalization of telescope observations. Smartphone stative is made in such a way that the camera in the right position on the telescope lens. Data retrieval is taken by a smartphone camera and ASI120MC camera as a comparison parameter. The data will be sent to the PC via an application installed both on smartphone and PC attributed by Bluetooth network. The camera is supported with a camera stative to keep it apart from binoculars. The observations obtained from this system is an interpretation between the camera on the telescope and PC. Such interpretations may produce images or videos observed by telescopes. This design can simplify the interfacing of telescope resulting good enough photo quality.

Author(s):  
R. E. Barber

Solar heat can be converted into shaft power by use of the Organic Rankine Cycle Engine (ORCE). The efficiency of the ORCE to convert the solar heat to shaft power varies from 7 or 8 percent for an ORCE heated by low temperature flat plate collectors at 200 F, to near 15 percent when heated by intermediate temperature collectors (300 F), and up to 25 percent with high temperature concentrating collectors (600 F). Barber-Nichols designed, built, and tested its first solar heated ORCE in 1973, which produced three tons of air conditioning. Since that time, the three-ton unit has reached its fourth iteration on the development path to production; a 77-ton water chiller was installed at LASL; two ORCE drives for 100-ton water chillers were delivered to Honeywell; seven 25-ton water Chillers were delivered to DOE demonstration sites; and a 25-hp ORCE for irrigation pumping was installed in Willard, N.M. Photographs, design details, and the measured performance of these units are presented herein as examples. The cost of solar power systems using an ORCE is also presented which shows that for the current $150 to $200/m2 cost of cencentrating collectors, the system cost would be in excess of $2500/kw peak. The ORCE is approximately 25 percent of this cost or $600/kw. Consequently, while reductions in the cost and improvements in the performance of the ORCE can and should be made in the development process, the cost competitiveness of a solar power system is largely dependent on developing low cost concentrating collectors which can be sold for 1/2 to 1/3 of today’s price.


Author(s):  
Margaret C. Foster ◽  
Albert J. Saubermann

The development of personal computers increases the options available for electron probe microanalysis. Hardware and software are now available for personal computers which make it feasible to use them to acquire, process, and analyze x-ray spectra. One advantage of a personal computer (PC) based system is the low cost--approximately 20% of the cost of other options. A second advantage is that a system can be developed which is tailored to the needs of the laboratory, so that experimental questions asked of the data can dictate procedures for data acquisition and processing.We have developed a PC-based system for electron probe microanalysis, which we use for data acquisition, processing, and analysis of frozen and freeze-dried biological samples. X-ray spectra may be acquired either for spot analysis or for elemental images. Spectra acquired from large areas of the frozen, hydrated sample are used together with spectra from the freeze-dried specimen to calculate concentrations relative to sample wet weight.


2008 ◽  
Vol 8 (3) ◽  
pp. 290
Author(s):  
Elizabeth T Manurung ◽  
Arthur Purboyo ◽  
Thomas Kurniawan

<p class="Style1">More severe competition in business of today globalization, coupled with the scorching of economic condition, is demanding companies to constantly seek out ways to preserve their excellence performance, meaning 'doing the right things right' in order that they can achieve optimal performance. The deceptive belief that by increasing sales volume companies can increase their profit has caused them to accept orders over products and consequently increase costs no matter what difference each order made in activities consumption. The concept is based on idea 'The smaller the production volume, the smaller the cost'. Accordingly, this idea leads to overstated calculation ofprofit in ABC (activity based costing), product cost calculation will differ with activities. Accordingly, this gives accurate and complete information about cost for activities and cost for every product. This way, managements know which product(s) is (are) profitable, which part of the operation is (are) efficient, how to make sound strategy to create maximum profit. Finally, this work will end up with an analysis over which product is profitable for a garment industry in Bandung: sweater,  cardinal (long pants), or vest</p><p class="Style2">Keywords: business competition, activity based costing, traditional cost system, product profitabilit</p>


2021 ◽  
Vol 13 (1) ◽  
pp. 35-51
Author(s):  
Gelmar García-Vidal ◽  
Reyner Pérez-Campdesuñer ◽  
Alexander Sánchez-Rodríguez ◽  
Rodobaldo Martínez-Vivar

The objective of the article is to present the design and application of a technique based on the Cost - Volume - Benefit method, in order to have economic - financial information of the right mix of products that allows achieving the expected results of the organization in a negotiation process. The proposed analysis has the usual components of the Cost - Volume - Benefit method, namely unit price, unit variable cost, operating expenses and financial expenses. The technique consists of ten steps that will lead to create as many scenarios as necessary in which the mix of products, the installed capacity and the profits of the organization will be evaluated, the ultimate goal of the same. These steps, through the formulations that allow their application, will explain the way to achieve the desired profits or the point of balance with a certain composition of products. The application is made in a small business consisting of a machining workshop. The results obtained show that the proposed technique allows the achievement of the stated objective, in the case that occupies a level of desired utilities. This research provides an economic-financial perspective so that entrepreneurs have the information required to prepare the negotiation processes and can make the most pertinent decisions in order to achieve the expected results.


Micromachines ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 266 ◽  
Author(s):  
Raminafshar ◽  
Raptis ◽  
Mohammadi ◽  
Lianos

Hole-transporter-free perovskite solar cells carrying a carbon back contact electrode provide the possibility of making full printable low cost and stable devices, even though their efficiency is substantially lower than those made in the standard configuration. The present work searched for simple and easy routes for constructing such devices, demonstrating that organic components do enhance device efficiency but only to a level that is not worth the trouble nor the cost. Devices based on a triple mesoporous layer of titania/zirconia/carbon with perovskite infiltration gave an efficiency of 10.7%. After 180 days of storing under ambient conditions, a small loss of efficiency has been observed for a cell made in June, in spite of the fact that in going from June to December, a large increase of the ambient humidity took place, thus verifying the protective effect that the carbon electrode is providing. The addition of spiro-OMeTAD to the hole-transporter-free device resulted in increasing the efficiency by about 10%, a change which is appreciated to be of low importance given the cost of this material. This increase mainly derived from an increase in the current. Devices of different sizes have been constructed by screen printing, using home-made pastes for all the components making the cell scaffold, i.e., for titania, zirconia, and carbon layers.


Author(s):  
Tian-yi Chen ◽  
Lan Zhang ◽  
Shi-cong Zhang ◽  
Zi-long Li ◽  
Bai-chuan Huang

Cross-modal hashing (CMH) models are introduced to significantly reduce the cost of large-scale cross-modal data retrieval systems. In many real-world applications, however, data of new categories arrive continuously, which requires the model has good extensibility. That is the model should be updated to accommodate data of new categories but still retain good performance for the old categories with minimum computation cost. Unfortunately, existing CMH methods fail to satisfy the extensibility requirements. In this work, we propose a novel extensible cross-modal hashing (ECMH) to enable highly efficient and low-cost model extension. Our proposed ECMH has several desired features: 1) it has good forward compatibility, so there is no need to update old hash codes; 2) the ECMH model is extended to support new data categories using only new data by a well-designed ``weak constraint incremental learning'' algorithm, which saves up to 91\% time cost comparing with retraining the model with both new and old data; 3) the extended model achieves high precision and recall on both old and new tasks. Our extensive experiments show the effectiveness of our design.


Author(s):  
A. I. Levina ◽  
A. V. Kubarskii

Software-as-a-Service (SaaS) is becoming a popular outsourcing option for customers interested in paying for the right to access a standardized set of functions of the necessary software via the Internet. Due to the low cost of the service and the lack of high initial costs, the business becomes interested in using this technology. Software as a service allows you to significantly reduce the cost of IT services, to rethink the entire process of automating the business-processes of companies and creating software by eliminating high initial investments in infrastructure and its subsequent maintenance. Considering these advantages of SaaS over on-premises applications, business is increasingly talking about the possibility of a full transition to the use of SaaS services. In this paper, the concept of SaaS software, the architecture of this kind of applications, their distribution models and long-term use costs are analyzed, and this approach is compared with on-premises software in the above issues. Based on the analysis of actual data, recommendations were made on the topic of whether to abandon the usual set of technologies in favor of SaaS and which companies should take such actions.


Author(s):  
Stuart McKernan

For many years the concept of quantitative diffraction contrast experiments might have consisted of the determination of dislocation Burgers vectors using a g.b = 0 criterion from several different 2-beam images. Since the advent of the personal computer revolution, the available computing power for performing image-processing and image-simulation calculations is enormous and ubiquitous. Several programs now exist to perform simulations of diffraction contrast images using various approximations. The most common approximations are the use of only 2-beams or a single systematic row to calculate the image contrast, or calculating the image using a column approximation. The increasing amount of literature showing comparisons of experimental and simulated images shows that it is possible to obtain very close agreement between the two images; although the choice of parameters used, and the assumptions made, in performing the calculation must be properly dealt with. The simulation of the images of defects in materials has, in many cases, therefore become a tractable problem.


2018 ◽  
Vol 4 (2) ◽  
pp. 43-55
Author(s):  
Ika Yulianti ◽  
Endah Masrunik ◽  
Anam Miftakhul Huda ◽  
Diana Elvianita

This study aims to find a comparison of the calculation of the cost of goods manufactured in the CV. Mitra Setia Blitar uses the company's method and uses the Job Order Costing (JOC) method. The method used in this study is quantitative. The types of data used are quantitative and qualitative. Quantitative data is in the form of map production cost data while qualitative data is in the form of information about map production process. The result of calculating the cost of production of the map between the two methods results in a difference of Rp. 306. Calculation using the company method is more expensive than using the Job Order Costing method. Calculation of cost of goods manufactured using the company method is Rp. 2,205,000, - or Rp. 2,205, - each unit. While using the Job Order Costing (JOC) method is Rp. 1,899,000, - or Rp 1,899, - each unit. So that the right method used in calculating the cost of production is the Job Order Costing (JOC) method


Author(s):  
Lodiana Nitti ◽  
Friandry Windisany Thoomaszen

ABSTRACT Parental perception will affect the fulfillment of children’s participation rights. Fullfilment of children’s participation rights will be fulfilled optimally if parents pay anttention to opinions while providing opportunities for children to make and make decisions about the child’s goals and self-interest. The subjects studied consisted of 5 subjects consisting of father and mother who had children aged 9- 12 years. This study uses qualitative research methods, with data retrieval tools in teh form of interviews, observation and documentation. From the research found data were the subjects do not fulfill the right of participation of children up to the maximum ladder where children’s participation rights range from the first ladder to the third ladder. The first ladder to the third ladder is actually a non- participating ladder. This means that children is manipulated, dominated by parents, there is direct communation and the severity of the parent. The children felt disappointed, sad, and angry with the parents but they still tried to hear and obey the parent’s decision. Children from third and fourth subjects experienced excessive fear to speak to their parent (father). Suggestions for parents to be more caring and fulfill the rights of children’s participation so as not to affect the growth and development of children. Keywords: participation rights, children, parents


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