Efficiency and effectiveness enhancement of an intercooler of two‐stage air compressor by low‐cost Al 2 O 3 /water nanofluids

Heat Transfer ◽  
2020 ◽  
Vol 49 (5) ◽  
pp. 2577-2594
Author(s):  
Venkateswarlu Chintala ◽  
Vikesh S. ◽  
Ashish Karn
Keyword(s):  
Low Cost ◽  
Two Stage ◽  
Air Compressor ◽  
Efficiency And Effectiveness

scholarly journals Development and evaluation of low-cost walker with trunk support for senior citizen

2017 ◽  
Vol 51 (0) ◽  
Author(s):  
Paloma Hohmann Poier ◽  
Francisco Godke ◽  
José Aguiomar Foggiatto ◽  
Leandra Ulbricht
Keyword(s):  
Senior Citizens ◽  
Low Cost ◽  
Senior Citizen ◽  
Descriptive Study ◽  
The Body ◽  
Two Stage ◽  
Monitoring Time ◽  
Static Body ◽  
Study Development

Abstract OBJECTIVE Develop and evaluate a low-cost walker with trunk support for senior citizens. METHOD Two-stage descriptive study: development of a walker with trunk support and evaluation with fourth age senior citizens. RESULTS Twenty-three fourth age senior citizens were selected. The evaluated criteria were the immediate influence of the walker on the static stabilometry with baropodometer and the evaluation of gait with accelerometers monitoring time and amplitude of the hip movement. There was a significant decrease in the body oscillation of senior citizens with the use of the developed walker, and there were changes in the joint amplitudes of the hip, but they were not significant. CONCLUSION Using low-cost materials, it was possible to develop and equipment that met resistance and effectiveness requirements. The walker interfered in the balance of the senior citizens, reducing significantly the static body oscillation.

scholarly journals Superior Antireflection Coating for a Silicon Cell with a Micronanohybrid Structure

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Hsi-Chien Liu ◽  
Gou-Jen Wang
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
Low Cost ◽  
Antireflection Coating ◽  
Light Spectrum ◽  
Two Stage ◽  
Liquid Diffusion ◽  
Pyramid Structure ◽  
Short Time ◽  
Structure Array

The object of this paper is to develop a high antireflection silicon solar cell. A novel two-stage metal-assisted etching (MAE) method is proposed for the fabrication of an antireflective layer of a micronanohybrid structure array. The processing time for the etching on an N-type high-resistance (NH) silicon wafer can be controlled to around 5 min. The resulting micronanohybrid structure array can achieve an average reflectivity of 1.21% for a light spectrum of 200–1000 nm. A P-N junction on the fabricated micronanohybrid structure array is formed using a low-cost liquid diffusion source. A high antireflection silicon solar cell with an average efficiency of 13.1% can be achieved. Compared with a conventional pyramid structure solar cell, the shorted circuit current of the proposed solar cell is increased by 73%. The major advantage of the two-stage MAE process is that a high antireflective silicon substrate can be fabricated cost-effectively in a relatively short time. The proposed method is feasible for the mass production of low-cost solar cells.

scholarly journals RUMAH SUSUN MODULAR DENGAN PEMANFAATAN PAPAN PRAFABRIKASI CLT, KASUS : Rumah Susun Siwalankerto, Surabaya (Modular Low-Cost Vertical Housing Benefit from Using Prefabricated Cross Laminated Timber Panel)

2019 ◽  
Author(s):  
Arteks Jurnal Teknik Arsitektur
Keyword(s):  
Lower Cost ◽  
Low Cost ◽  
High Potential ◽  
Modular Construction ◽  
Cross Laminated Timber ◽  
Efficiency And Effectiveness ◽  
Low Cost Housing ◽  
Housing Benefit ◽  
Construction Efficiency ◽  
Growing Population

Surabaya is the second most populated city in Indonesia. Its ever-growing population creates a problem with its limited number of low-cost housing. Seeing how slow the progress of constructing low cost vertical housing to meet the demands, it requires a faster and more efficient way. By using a modular construction method, this paper tries to analyze the benefit of using an alternate material such as prefabricated CLT (Cross Laminated Timber) panel. CLT panel shows a high potential in creating a better construction that is more environmentally friendly while still benefiting from a faster and lower cost by overall. Siwalankerto vertical housing was chosen due to its modular style of design and usage of material in its façade that is easier to simulate using a prefabricated material. Its location in Surabaya that is near Gresik where the manufactures capable manufacturing the prefabricated material also make it a great choice. This paper limits itself on construction efficiency and effectiveness simulated towards using prefabricated CLT panel and the effects of said material to the organization of rooms inside the building.

scholarly journals Hydraulic Mixing Modelling in Reactor for Biogas Production

2012 ◽  
Vol 33 (4) ◽  
pp. 621-628 ◽  
Author(s):  
Andrzej G. Chmielewski ◽  
Aleksandra Berbeć ◽  
Michał Zalewski ◽  
Andrzej Dobrowolski
Keyword(s):  
Biogas Production ◽  
Low Cost ◽  
Production Plant ◽  
Mixing Conditions ◽  
Cfd Modelling ◽  
Two Stage ◽  
Industrial Installation

Two-stage biogas production plant consists of two reactors: a hydrolyser and a fermentor. The bioreactor construction has to meet three requirements: low cost and simplicity of construction and good biomass mixing conditions with an application of appropriate method. This paper reports CFD modelling of hydraulic mixing in the tank to be applied in a two-stage industrial installation.

A two-stage method for real-time baseline drift compensation in gas sensors

2022 ◽  
Author(s):  
Chao Zhang ◽  
Wen Wang ◽  
Pan Yong ◽  
Lina Cheng ◽  
Shoupei Zhai ◽  
...  
Keyword(s):  
Real Time ◽  
Gas Sensors ◽  
Piecewise Linear ◽  
Low Cost ◽  
Piecewise Linear Approximation ◽  
Two Stage ◽  
Baseline Drift ◽  
Ambient Temperatures ◽  
Future Design ◽  
Drift Compensation

Abstract Baseline drift caused by slowly changing environment and other instability factors affects significantly the performance of gas sensors, resulting in reduced accuracy of gas classification and quantification of the electronic nose. In this work, a two-stage method is proposed for real-time sensor baseline drift compensation based on estimation theory and piecewise linear approximation. In the first stage, the linear information from the baseline before exposure is extracted for prediction. The second stage continuously predicts changing linear parameters during exposure by combining temperature change information and time series information, and then the baseline drift is compensated by subtracting the predicted baseline from the real sensor response. The proposed method is compared to three efficient algorithms and the experiments are conducted towards two simulated datasets and two surface acoustic wave sensor datasets. The experimental results prove the effectiveness of the proposed algorithm. Moreover, the proposed method can recover the true response signal under different ambient temperatures in real-time, which can guide the future design of low-power and low-cost rapid detection systems.

WASPAS based MULTIMOORA method under IVIF environment for the selection of hub location

2020 ◽  
Vol 33 (5) ◽  
pp. 1233-1256
Author(s):  
Nezir Aydin ◽  
Sukran Seker
Keyword(s):  
Decision Making ◽  
Airline Industry ◽  
Low Cost ◽  
Evaluation Criteria ◽  
Hub Location ◽  
Content Type ◽  
Efficiency And Effectiveness ◽  
Decision Making Processes ◽  
Product Assessment ◽  
The City

PurposeLow cost carriers (LCCs) have become one of the most significantly growing parts of the airline servicing market. This new player has redesigned the whole airline industry, which was previously led by the national/international full-service airline companies. Considering such advancements, the hub locations of LCCs became an important issue than ever before. Within this concept, a guiding framework is developed for an LCC company, which is in search of a new hub airport location within Turkey to satisfy the demand and attract new passengers.Design/methodology/approachAn interval-valued intuitionistic fuzzy (IVIF) sets based weighted aggregated sum product assessment (WASPAS) and multi-objective optimization by ratio analysis (MULTIMOORA) methods are developed for decision-making processes.FindingsFive airport locations are evaluated using the developed method. Results showed that in determining hub locations for LCCs, potential number of passengers of the city, airport quality and the number of hotels within the city are obtained as the three most important criteria among 12 evaluation criteria. The best location for the LCC company is determined as Antalya Airport.Research limitations/implicationsTo apply the proposed method to a different set of alternatives, data gathered on comparing location of alternatives from experts should be updated.Originality/valueProposed hybrid framework is presented as the first time in the literature as a decision-making tool. In order to validate framework's applicability, efficiency and effectiveness, a comparison and a sensitivity analysis are conducted at the end of the study.

scholarly journals MEDIASI SEBAGAI UPAYA PENYELESAIAN PERKARA YANG BERSIFAT KOOPERATIF

GANEC SWARA ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 897
Author(s):  
I WAYAN SUWANDA
Keyword(s):  
Research Method ◽  
Low Cost ◽  
Secondary Data ◽  
Judicial System ◽  
Primary Data ◽  
Legal Research ◽  
Complex Needs ◽  
Study Approach ◽  
Efficiency And Effectiveness ◽  
Long Time

      It is estimated that the judicial system will not be able to meet the increasingly complex needs of society. This estimate is based on facts in the field. Dispute resolution through courts is considered too convoluted, takes a long time, and is inefficient for businesses that emphasize efficiency and effectiveness. Besides, the court's decision does not satisfy the parties. The principle of simple, fast, low-cost justice is still only a slogan.      Answering this problem, a study is conducted using the empirical normative legal research method with a study approach based on statutory regulations, conceptual approaches, and case approaches. Types and sources of data used in this study are primary data and secondary data with data collection techniques through document study and interviews, where the data obtained will be analyzed qualitatively deductively. Based on the results of research and discussion, it was found that mediation as a solution to the settlement of cases, both in court and outside the court, is cooperative

Sign in / Sign up

Export Citation Format

Share Document