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21.
The impact of various energy efficiency upgrade scenarios on the annual energy consumption of the Canadian housing stock is assessed using the Canadian Residential Energy End‐use Model (CREEM). The energy efficiency upgrade scenarios that are considered include major retrofits, such as the improvement of the house envelope by adding insulation, and the replacement of the existing heating system and appliances by higher efficiency units, as well as minor retrofits, such as lighting fixture, thermostat, showerhead and aerator upgrades that reduce energy consumption. The economic feasibility of each upgrade was assessed using the indicator ‘energy savings per dollar investment’. The results indicate that the energy savings potential of the retrofits is rather small, resulting in savings of 0–8 per cent of the total energy consumption of the Canadian housing stock. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
22.
Merih Yıldız Shahram Minaei İzzet Cem Göknar 《International Journal of Circuit Theory and Applications》2011,39(9):933-945
In this paper a new CMOS classifier circuit is presented, simulated, and compared with other recently introduced circuits. The proposed CMOS circuit operates in current‐mode and can classify several types of data. The architecture is designed using two threshold circuits and a subtraction circuit. Among many possible applications of the classifier circuit, template‐based pattern classification, namely template matching and character recognition with corruption, and in another direction its use as a quantizer are given. Using 0.35‐ µm AMS technology parameters, SPICE simulations as well as hard realization results for the classifier and application circuits are included; detailed Monte Carlo analyses to assess parameter mismatch effects are also performed. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
23.
In this study, electricity generation associated CO2 emissions and fuel-specific CO2 emission factors are calculated based on the IPCC methodology using the data of fossil-fueled power plants that ran between 2001 and 2008 in Turkey. The estimated CO2 emissions from fossil-fueled power plants between 2009 and 2019 are also calculated using the fuel-specific CO2 emission factors and data on the projected generation capacity of the power plants that are planned to be built during this period. Given that the total electricity supply (planned+existing) will not be sufficient to provide the estimated demand between 2011 and 2019, four scenarios based on using different fuel mixtures are developed to overcome this deficiency. The results from these scenarios show that a significant decrease in the amount of CO2 emissions from electricity generation can be achieved if the share of the fossil-fueled power plants is lowered. The Renewable Energy Scenario is found to result in the lowest CO2 emissions between 2009 and 2019. The associated CO2 emissions calculated based on this scenario are approximately 192 million tons lower than that of the Business As Usual Scenario for the estimation period. 相似文献
24.
Mehmet Engin Tayfun Dalbast Merih Güldüren Eray Davasl Erkan Zeki Engin 《Measurement》2007,40(9-10):936-942
In this study, a prototype EEG recording and analysis module for biomedical research applications is designed. The design of the system consists of an analog and a digital part. The system has two signal channels, but it can be extended to six channels construction. The analog module involves the following units; an input instrumentation amplifier, gain adjustable amplifier, band-pass filter, and a driven-right-leg- (DRL) circuit. The digital board consists of A/D converter and RS232 communication unit. In order to test system, the circuit simulation and the real-time EEG measurements are implemented. The proposed EEG system can be used in our department’s biomedical laboratory. 相似文献
25.
Shahram Minaei Izzet Cem Göknar Merih Yıldız Erkan Yuce 《International Journal of Electronics》2013,100(6):911-931
In this paper, novel voltage-mode (VM) n-channel metal-oxide semiconductor (NMOS) transistor-based analogue adder and subtractor circuits, which, respectively, perform V1+V2 and V1?V2 operations, are presented. The most important feature of the proposed circuits is their extremely simple structures containing only six NMOS transistors. Further, the presented adder and subtractor circuits have high input and low output impedances, resulting in easy cascadability. The post-layout simulations of the proposed circuits have been executed using TSMC 0.25 µm process parameters with ±1.25 V. The area of the suggested circuits is approximately 30 × 13 µm2. Moreover, the topology of a generalised mutator, a versatile 4-port built with an adder and a subtractor, which acts as an ordinary mutator when properly reduced to a 2-port, is offered. A table for simulating lossless inductance, memristor, meminductor, memcapacitor and other elements under suitable termination of the 4-port is given, and three of these elements’ simulations with SPICE are also presented. 相似文献
26.
Merih Otker Uslu Saad Jasim Antonette Arvai Jatinder Bewtra Nihar Biswas 《臭氧:科学与工程》2013,35(4):249-262
The present study is an overview of the literature on the occurrence and potential risks of pharmaceutical substances in the wastewater treatment plants (WWTP), natural waters and drinking water treatment plants served by the Great Lakes Basin (Canada and the USA) between the years of 2007–2012. Large number of pharmaceutical substances, including anti-inflammatories, lipid regulators, antidepressants, antibiotics, beta blockers, anti-epileptics, anti-hypertensions and stimulants, in high ng/L concentrations, has been reported in the WWTP influents. Most of these compounds have also been detected in the WWTP effluents at comparable concentrations with the exception of caffeine, cotinine and salicylic acid suggesting the inefficiency of conventional treatment processes in the degradation of pharmaceutical compounds. Decreasing surface water concentrations have been observed with the distance downstream of the discharge point due to the dilution effect. Surface waters located around septic systems and agricultural areas have also been found to be contaminated with pharmaceutical substances. Carbamazepine, caffeine, its metabolite paraxanthine, ibuprofen, gemfibrozil and sulfamethoxazole have been frequently detected in the surface waters. The number of occurrences of carbamazepine, ibuprofen, naproxen, gemfibrozil, bezafibrate, sulfamethoxazole and macrolide antibiotics in drinking water sources, at ng/L concentration ranges, has been quite high. Although the detection frequencies in treated drinking waters were relatively low, the concentrations of the above mentioned pharmaceutical substances were at the same range as the source water concentrations.
Six of the detected pharmaceutical substances, namely, fluoxetine, sulfamethoxazole, clarithromycin, erythromycin, carbamazepine and esterone exhibit a high environmental risk in Great Lakes WWTP effluents and surface waters, while none of the pharmaceutical substances seem to pose a risk for human health at their highest reported concentrations in the drinking water sources from the Great Lakes. 相似文献
27.
28.
Merih?Paland?ken Murat?Aksoy Mehmet?TümayEmail author 《Electrical Engineering (Archiv fur Elektrotechnik)》2004,86(4):191-198
In this paper, the way to use one of the most powerful problem-solving methodologies, fuzzy logic, to enhance the quality of the power system is described. To prove the power of fuzzy logic for the modeling of nonlinear systems, the modeling of active power filters with a fuzzy logic based control strategy is presented as a case study and its capability to reject reactive power eliminate current harmonic components is simulated by MATLAB. The advantages in using fuzzy logic as emphasized in the case study are its simple application to various types of systems, high performance, lower cost, and higher productivity. 相似文献
29.
Ozlem?CankurtaranEmail author Merih?Serin Hüsnü?Cankurtaran Ferdane?Yilmaz 《Polymer Bulletin》2003,51(3):225-230
Summary
Trace amount of solvents such as n-octane, n-nonane,
n-decane, isopropyl acetate, tert-butyl acetate and isoamyl
acetate were passed through the column of a gas chromatograph,
which stationary phase is poly (phenyl sulfone) trademarked as
Radel®R. The retention diagrams were
obtained by plotting the logarithm of the specific retention
volumes of the solvents against reciprocal of the absolute
column temperature between 50 and 280 °C. The slope changes on
the diagram were assigned as secondary transitions. Three
secondary transition temperatures were established at 140, 110
and 80 °C below glass transition temperature, 210 °C. Weight
fraction activity coefficients of the solvents at infinite
dilution, 1
-
and hard-core polymer solvent interaction parameters
t
, were
given for the studied solvents at 250 °C. The values of the
parameters
1
- and
t
suggest
that n-alkanes are very poor whereas esters studied are
moderately poor solvents for poly (phenyl sulfone) at 250
°C. 相似文献
30.
Wireless Networks - In this article, a novel ultra-high frequency radio frequency identification (UHF RFID) reader antenna is proposed and experimentally investigated. The proposed RFID antenna... 相似文献