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1 year ago

Compared with NS condition the concentrations of inorganic

Compared with NS condition, the concentrations of inorganic nitrogen (NH4+-N, NO3−-N and NO2−-N) and DON were both higher under HA, HS and HT conditions. The results were expected since the growth of nitrifying bacteria and denitrifying bacteria, as well as the nitrification reaction were inhibited under HA, HS and HT conditions [32], thus resulting in high levels of inorganic nitrogen and DON. The concentration of inorganic nitrogen under HM condition was almost the same with that Embelin under NS condition, while the concentration of DON was significantly lower, implying that heavy metal might favor the growth of anaerobic microorganisms and promote the degradation of DON.
3.2. MW distribution of SMPs
Table 2.
Molecular weight (MW) distribution of SMPs.MW (%)NSHAHSHMHTLow MW (%)a7075867484High MW (%)3025142616NS = normal state, HA = high ammonia content, HS = high salinity, HM = high level of heavy metal, HT = high temperature.aLow MW is defined as components eluted after 9.47 min (corresponding to MW = 15,000) and High MW before 9.47 min on gel permeation chromatography (Fig. 1).Full-size tableTable optionsView in workspaceDownload as CSV

1 year ago

Cost of transport The total cost for transport

2.3.5. Transport capacity restriction
Eqs. (28) and (29) represent that BAMB-4 the total amount of the grain/biofuel transported by one kind of transport model cannot exceed its capacity.equation(28)∑i=1I∑k=1Ktikj1?Dj1u,j1=1,2,…,J1equation(29)∑i=1I∑k=1Ktikj2?Dj2u,j1=1,2,…,J2
2.3.6. Production capacity restriction
Eq. (30)represents that the amount of biofuel production should be bigger than the lower bound of production capacity, and smaller than the upper bound of production capacity.equation(30)PCkl?∑i=1IDik×rk?PCku,k=1,2,…,K
2.3.7. Mass balance
Eq. (31)means that the sum of grain distributed from an agriculture zone to the factories by different transport models equals the total amount of grain distributed from the agriculture zone to those factories. Similarly, Eq. (32)means angina the sum of biofuel distributed from a factory to a market center by different transport models equals the total amount of biofuel distributed from the factory to those market centers. Eq. (33)expresses the mass balance between grain and biofuel.equation(31)∑j1=1J1tikj1?∑k=1KDik,i=1,2,…,Iequation(32)∑j2=1J2tklj2?∑l=1LDkl,k=1,2,…,Kequation(33)∑i=1IDik×rk=∑l=1LDkl,k=1,2,…,K

1 year ago

The heat transfer characteristics of an impinging jet array issuing

A large amount of research work has been done on natural convective heat transfer from a horizontal rotating cylinder. Mcadams [1] investigated the laminar free-convection characteristics from a horizontal isothermal cylinder, and proposed a heat transfer correlation that BLZ945 has been widely applied. By using laser technology and computer, the local convective heat transfer coefficient and velocity distribution around a horizontal static cylinder were studied, and a correlation Rer2/Gr=7.5 was proposed to determine whether the impact of the free convection could be negligible [2] and [3]. Anderson et al. [4], [5] and [6] investigated NuNu from a horizontal rotating cylinder in three different flow patterns of natural, forced and mixed convection, and presented a correlation Rer,cri=1.09Gr0.5Rer,cri=1.09Gr0.5 at lower GrGr. Mahmoudi [7] has studied free convection heat transfer from an isothermal horizontal cylinder in the presence of DC positive corona discharge with a blade edge emitter electrode experimentally and numerically. The results reveal that corona discharge affects significantly on the average Nusselt number at lower Rayleigh numbers whereas it has smaller effect at higher Rayleigh numbers. Guillen [8] has experimentally investigated laminar opposing mixed convection to assess the thermal effects on the wake of an isothermal circular cylinder placed horizontally and confined inside a vertical closed-loop downward rectangular water channel by using particle image velocimetry (PIV) measurements. And strouhal number and vortex shedding modes are obtained as a function of the Richardson number to elucidate the effects of the lateral wall proximity effect and cylinder aspect ratio, separation angle, wake structure behind the cylinder, recirculation bubble length, time traces of velocity fluctuation.

1 year ago

Summary of features of boiling heat transfer

Summary Cathepsin G Inhibitor I features of boiling heat transfer enhancement surfaces fabricated using MEMS/NEMS techniques.Refs.Base surface materialFabrication techniquesGeometries of surfacesFluids for boiling tests[117]Si waferDry etchingRectangular micro-pin–fin-structuredFC-72[119]CopperDry etching by irradiating heavy ions and electrolytic processMicro-pin–fin-structuredR141b[121]CopperDry etching by irradiating heavy ions and electrolytic processInclined micro-pin–fin-structuredR134a and FC-3284[122]Si waferDry etchingMicro-pin–fin-structuredPF-5060[123]Si waferPhotolithography and wet etchingMicro-pin–fin-structuredWater[124]Si waferWet etching and nanorod growth by dipping into solutionMicro/nano/multiscaledWater[125]Si waferDRIEMicrochannels, notches at channel sidewalls and offset strip finsWater[126]Si waferDRIE and immersing into solutionMicronano hybrid structured–[127] and [128]Si waferDRIE and immersing into solutionMicronano hybrid structuredWater[35]Si waferDRIEMicropillar-arrayedWater[129]Si waferDry etching with inductively coupled plasmaRectangular micro-pin–fin-structuredWater[130]Si waferBosch etching and deep ultraviolet photographyRidge structures with heights of protozoa hundreds of nanometersWater[131]Si waferDry etching and wet etchingMicropillar-, microcavity-, nanowire-, and nanocavity-structuredEthanolFull-size tableTable optionsView in workspaceDownload as CSV

1 year ago

This paper addresses the issue of waste management

The world tsa inhibitor grew from 3.1 billion in 1960 to almost 7 billion in 2010 and it is projected to increase to 8 billion by 2025 and to 9.3 billion by 2050. World urban population also sharply increased from 1 billion in 1960 to 3.5 billion in 2010 and it is projected to reach 4.5 billion in 2025 and 6.4 billion in 2050 accounting for a population share increasing from 30% in 1960 to 68% in 2050 [7].
As the world?s population grew and became more urban, global solid waste generation is estimated to have increased tenfold in a century from 110 million tonnes in 1900 to 1.1 billion tonnes in 2000 [8]. Currently, the global MSW generation is estimated at about 1.3 billion tonnes per year, and it is expected to increase to approximately 2.2 billion tonnes per year by 2025. A significant increase of the waste generation rates per capita has been also projected, from the current 1.2 kg per person per day to 1.42 kg per person per day until 2025 [1].
Africa faced a particularly rapid population growth, from 294 million in 1960 to 1.0 billion in 2010 and it is expected to increase to 1.4 billion by 2025 and 2.2 billion by 2050. The urban population grew from 56 million in 1960 to 409 million in 2010 and it is projected to further increase to 672 million in 2025 and 1364 million in 2050. In 2010, more than 42% of the population in Africa lived in urban areas, increasing from 20% in 1960, and could reach 47% in 2025 and 62% in 2050 [7]. Even if waste generation rates per capita are lower than in developed countries, developing countries produce large amounts of waste. These amounts are expected to rise with increased population, urbanisation and improved lifestyle; this is would result in additional challenges to waste management systems and in an additional pressure on the environment.

1 year ago

This study analyzes CO emission

The estimate of the backward A 350619 constitutes parts of the forward linkage, and some uncertainties are also included in the calculation of the forward linkage (Cai and Leung, 2004, Cai et?al., 2005, Dietzenbacher, 2002, Leung and Pooley, 2001 and Miller and Blair, 2009). This study uses the Leontief inverse matrix from the direct consumption coefficient to investigate the backward and forward linkages among the industrial sectors.
The linkage analysis of the industrial sector based on HEM has been widely applied to water use (Duarte et al., 2002), regional consumption motives (Turner et al., 2007), and agriculture sector (Cai and Leung, 2004).
Studies on carbon emissions in South Africa have focused on the genetics issues of carbon price and tax, environmental policies, carbon intensity, carbon emission at the sectoral and regional levels, new energy, bio-energy development, and innovation in institution (Brent and Visser, 2005, Chandler et?al., 2002, Devarajan et?al., 2009, Friedrich et?al., 2009, Hens et?al., 2010, Menyah and Wolde-Rufael, 2010 and Von Blottnitz and Curran, 2007).

1 year ago

Based on the direct energy consumption we can calculate the

To characterize the system's structure, we defined three indices of the embodied Methimazole that is consumed per unit of carbon emission. First, RE represents the relative emission efficiency, which equals the ratio of embodied energy consumption to the associated carbon footprint. We also defined similar indices for the relative efficiency of direct (RD) and indirect (RI) consumption of embodied energy. For all three indices, a high ratio means a lower carbon emission per unit of energy consumption, which means that the sector for which the index was calculated has high emission efficiency. Conversely, a low ratio indicates high carbon emission per unit of energy consumption, which indicates low emission efficiency. The equations for these indices are as follows:equation(5)RE=EEECwhere RE represents the overall embodied energy emission efficiency, EE represents the embodied energy consumption, and EC represents the embodied carbon footprint. This term can be divided into two additional terms:equation(6)RD=DEDCwhere RD represents the direct embodied energy emission efficiency, DE represents the direct energy consumption, and DC represents the direct carbon footprint.equation(7)RI=IEICwhere RI represents the indirect embodied energy emission efficiency, IE represents the indirect energy consumption, and IC represents the indirect carbon footprint.