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1 year ago

AcknowledgmentsThis work was supported by the

To use in electrochromic displays and devices, the material used in the active layer should have high VX-765 changes, low response time (in order of a few seconds), and high stability during the electrochromic switching [47]. The change in optical transmission of the ECD was recorded at λmax (650 nm), while switching the potential between −0.9 and 1.5 V, with a residence time of 5 s. The oxidation and reduction response times of poly-(PC)/PEDOT device are 0.5 and 0.4 s, respectively. Additionally, optical contrast of this device at 650 nm (ΔT%) was found to be 28%. Optical activity loss of the device was found to be 8% even after 5000 cycles ( Fig. 8). Finally, these results indicate that the constructed device has a low response time (ca. only 0.5 s), high redox stability, and high coloration efficiency (981 cm2 C−1). In previous studies, the coloration process of carbazole-based materials used in electrochromic device was completed at more than 2 V [22] and [48]. This device with low driving voltage between −0.9 and 1.5 V has great advantages when compared to other carbazole-based electrochromic materials. Neutral state colorless polymers are also important in electrochromic applications such as smart windows. To obtain a colorless system, these materials do not need any potential or energy. This property of poly-PC indicates that bursae would be a good promising material for the construction and/or the development of neutral state colorless smart windows.

1 year ago

AcknowledgementWe thank Professor Martyn Rich Language Centre University of Vigo

2. Methods
2.1. Experimental design
Fed-batch cultivation was conducted to increase methane productivity by intermittently adding substrate to the marine Benzoquinonium used as a microbial source. An aliquot was taken at the beginning of each cultivation to measure conductivity. The amount of methane was measured at the end of each cultivation. Volatile fatty acids (VFAs) were measured from an aliquot taken after the measurement of methane. Cultivation was conducted in triplicate. The values measured were expressed as mean ± standard deviation. The microbial community was analyzed from samples of the initial sediment and those of the culture after 10 rounds of cultivation.
2.2. Materials
Dried S. japonica was used as a substrate ( Miura et al., 2014). The marine sediment used in this study was originally sampled from the Ariake Sea in Japan. The marine sediment was centrifuged to prepare concentrated sediment by removing the supernatant. The concentrated sediment contained 44.0 wt% total solid (TS) and 4.96 wt% volatile solid (VS).

1 year ago

Temperature Fig xA Effects of temperature A

The accumulation of nitrite and the removal of TN during aerobic denitrification in the four systems were inspected, the results are shown in Fig. 2C for nitrite accumulation and Fig. 2D for TN removal. The TN removal of the free cell system was only 29.7%, with 168.98 mg/L NO2−-N accumulated in the water. In addition, the higher TN removals of 43.78%, 42.31% and 57.25%, along with NO2−-N accumulation of 137.4, 142.6 and 89.02 mg/L, were determined in the MP, PFC and SAB systems, respectively. Thus, the TN removal PR-619 closely bound with the accumulation of nitrite during aerobic denitrification, as proven in the previous study (Sun et al., 2015). In the present study, the same result occurred in the free cell system and immobilized cell systems. The more nitrite nitrogen was accumulated, the lower TN removal was achieved. Fortunately, the immobilization resulted in varying improvements for restricting nitrite accumulation. The limiting of the oxygen transfer through immobilization was effective (Uemoto et al., 2000). The bacteria inside the carriers could express the high activities of nitrite reductase, which could be inhibited under a vectors high dissolved oxygen condition (Körner and Zumft, 1989).

1 year ago

Fig xA Temporal variations of the axial acoustic

Studies of the effect of ambient pressure or temperature on fuel spray combustion have received much attention in past years [1], [2], [3], [4], [5], [6] and [7]. However, most of the studies focused on the effects of high ambient air pressures (>0.1 MPa). For instance, Hiroyasu et al. [8] studied the effects of high ambient pressure (3.0 MPa) and jet velocity on the breakup of high-velocity water jets under conditions similar to those encountered in diesel engines. Similar tests using diesel-type nozzles with water as the test fluid were also conducted by Arai et al. [9]. These studies reported that Verteporfin an increase in ambient pressure causes the breakup length to diminish and indicated that ambient pressures in the range of 0.1–3 MPa have a strong effect on breakup length and spray angle of the high speed jet. DeCorso [10] was among the first to investigate the effect of ambient air pressure on the spray characteristics of simplex swirl atomisers. That measured an increase in drop size when the ambient pressure was increased from 0.1 to 0.79 MPa and attributed genetic code increase in drop size to increased coalescence of the spray drops as the ambient pressure increased. Lee and Reitz [11] investigated the effects of gas density and velocity on the breakup mechanisms of liquid drops injected into a transverse high-velocity gas flow at four spray chamber pressures (1, 3.7, 6.4 and 9.2 atm). Over a pressure range of 0.1–0.5 MPa, a marked rise in the Sauter mean diameter (d32) was observed with an increase in ambient air pressure (Pa  ) (d32∝Pa0.27). For a given nozzle, known as the pressure-swirl atomizers, many equations have been proposed for d32 via correlation of available experimental data where both ambient air and liquid properties were taken account [12], [13] and [14].

1 year ago

The authors used a three year hourly wind speed

The authors used a three-year hourly wind speed dataset to test the model against SVR [50]. The reported model had smaller MSE and MAPE than the SVR model. However, the user defined threshold ? and the offset ω were not clearly defined and it AG 556 is dataset dependent.
For solar irradiance forecasting, a multi-stage ANN was reported in [51]. There were three stages: (i) first stage forecasts the average atmospheric pressure based on the historical average atmospheric pressure data, (ii) second stage forecasts the irradiance level based on the output of the first stage and (iii) third stage forecasts the solar irradiance based on the output of the second stage as well as the historical meteorological data. This multi-stage ANN was applied to forecast the heat pump water supply system rather than a PV system. The results showed a reasonable improvement compared with a single-stage ANN.
4. Results and discussion
In effector section, selected ensemble forecasting methods are evaluated with wind speed/power and solar irradiance time series data. Firstly the results reported from selected literature are summarized and compared and secondly three selected ensemble forecasting methods are evaluated with four wind speed time series datasets and four solar irradiance time series datasets and their performance is compared and discussed.

1 year ago

Thirdly there is a trade off between economic development

The estimation ACSF CCS cost in literatures and reports.PC-CCSIGCC-CCSCapture costTransportation costStorage costSource––18 Euro/tCO212 Yuan/tC (100 Km)26 Yuan/tC (200 Km)6 Yuan/tCO2NZEC, 20090.43 Yuan/kWh0.52 Yuan/kWh–––Zhang et al., 2005––147–171 Yuan/tCO28–11 USD/tCO2 (Average Distance = 250 Km)–Chen et al., 2007–70.8 USD/MWh60.73 USD/tCO20.68 USD/tCO2–Zhang, 2010––120–180 USD/tCO20.5–7 USD/tCO21–9 USD/tCO2McCoy taxis nd Rubin, 200978.9 USD/MWh67.7 USD/MWh67.4–44.4 USD/tCO27.2–9.2 USD/tCO2Golombek et al., 2011196 USD/tC(Overall)137 USD/tC(Overall)–45 USD/tC (500 Km)28 USD/tC (250 Km)–Riahi et al., 2009––25–32 Euro/tCO24–6 Euro/tCO24–12 Euro/tCO2McKinsey, 2008––40–55 Euro/tCO22–6 USD/tCO210–20 USD/tCO2IEA, 200866.35 Euro/MWh–3.15 Euro/tCO23.29 Euro/tCO2Lohwasser and Madlener, 2012Full-size tableTable optionsView in workspaceDownload as CSV

1 year ago

Methodology and data System dynamics is used to

2. Methodology and data
System dynamics is used to study the causal patterns of systems. It was developed by Jay W. Forrester in 1961 who aimed to study how policies, decision making, structure, and time delay correlated with each other and how they affected the growth and stability of a given system (Dong et al., 2012). System dynamics is used to simulate the LY450139 consumption system in 2020. By building the “Economic–Energy–carbon emissions” model, the energy structure and level of CO2 emission in 2020 are estimated according to historical data. Also, the relevant GDP parameters are added to examine the impacts of different economic development speeds on CO2 emission reduction target. Then, relevant policy parameters are added to construct the “Economy–Policy–Energy–Carbon emissions” model, which would confirm the roles of policy factors in the target CO2 emission level.
2.1. Data
China's GDP, traditional and renewable energy consumption per year are shown in Table 1. Concerning the traditional energy consumption, coal always played a leading role over the past twelve years which accounts for more than 65% of the total energy consumption. In addition, alternative source of energy such as hydropower, nuclear and wind energy are used to generate electricity in China. They are encouraged to develop in a large scale to solve the energy and environmental problems in recent years. The hydropower's development is better and wind power has become a promising alternative source of energy with a sharp annual growth rate of 82%. Although solar energy was adopted in a limited scale due to high cost and technology problems in China, it is a promising source of renewable energy.1