A forecasting model of the gradual optimization algorithm is established to predict substation grounding grip corrosion rate. In this model, according to the "Over Fitting" phenomenon in the neural network l...
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The inside flow field of a gas–liquid cyclone separator with a diameter of 75 mm was simulated with the computational fluid dynamics(CFD).Results showed that a variation of inlet flow rate significantly changes the i...
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The inside flow field of a gas–liquid cyclone separator with a diameter of 75 mm was simulated with the computational fluid dynamics(CFD).Results showed that a variation of inlet flow rate significantly changes the inside flow field structure and affects separation *** axial velocity of sections at four different positions was *** absolute values of the axial velocity increased with increased inlet flow *** regional line diagram of axial velocity shows that the increased inlet flow rate significantly increases the axial velocity area in the upward direction and decreases the same in the downward direction.
In the medium of hydrochloric acid, Vitamin C (VC) reacts with Se(VI) to form Se particles. The particles exhibit four resonance scattering peaks at 340, 400, 470 and 520 nm. VC concentration is proportional to the I3...
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Map-based cloning has been widely used to isolate and characterize many important plant resistance genes. However,most mapping strategies based on different molecular markers are very time-consuming and then make gene...
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Map-based cloning has been widely used to isolate and characterize many important plant resistance genes. However,most mapping strategies based on different molecular markers are very time-consuming and then make gene cloning *** we present a useful method for rapidly cloning rice resistance genes based on the connection of map-based strategy and next-generation genomic *** this method,the
The western flower thrips(WFT)Frankliniella occidentalis(Pergande)within the insect order Thysanoptera,which includes more than 5,500 described thrips species,feeds on plants by first puncturing the cell and then suck...
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The western flower thrips(WFT)Frankliniella occidentalis(Pergande)within the insect order Thysanoptera,which includes more than 5,500 described thrips species,feeds on plants by first puncturing the cell and then sucking the contents of the cell through their stylets,
Chinese chestnut(Castanea mollissima BL.),a deciduous tree native to China,belongs to the family Fagaceae and is widely cultivated in eastern *** Chinese chestnut trees planted in a suburb of Beijing,China developed s...
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Chinese chestnut(Castanea mollissima BL.),a deciduous tree native to China,belongs to the family Fagaceae and is widely cultivated in eastern *** Chinese chestnut trees planted in a suburb of Beijing,China developed symptoms including yellowing,leaf crinkling, little leaf,shortened internodes,and empty burrs. Transmission electron microscopy revealed the presence of phytoplasma cells in phloem sieve elements of the symptomatic chestnut *** cloning and se-
Peroxisomes present ubiquitously in eukaryotes and participate in various *** matrix proteins and membrane proteins are post-translationally imported into the *** import machinery consists of a specific group of prote...
Peroxisomes present ubiquitously in eukaryotes and participate in various *** matrix proteins and membrane proteins are post-translationally imported into the *** import machinery consists of a specific group of proteins encoded by PEX *** date,dozens of the PEX genes have been identified in
Based on the plasticity theory, the domino effect risk caused by fragments was investigated in consideration of the three types of protective layers: the PVC resin, MPA, and IPBT. The effects of the risk reduction wer...
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Based on the plasticity theory, the domino effect risk caused by fragments was investigated in consideration of the three types of protective layers: the PVC resin, MPA, and IPBT. The effects of the risk reduction were explored and compared by using the Monte-Carlo simulations. The results show that the rupture probability of the impacted target, the average penetration depth to the target, and the risk of domino effects decreased, while the average penetration depth to protective layer and the rupture probability of impacted protective layer increased, respectively from PVC resin, MPA, to IPBT;Moreover, the greater thickness of the protective layer also could reduce the risk of domino effect. The better practice is the use of the material of the protective layer with larger strength and smaller ultimate strain to reduce the possibility of the domino effect initiated by fragments. The larger the strength of material is, and the smaller the ultimate strain is, the higher resistant to the fragment penetration the material has.
Most studies on the treatment of chlorinated contaminants by Fe(0) focus on aqueous system ***,few is known about the effectiveness of these tests for degrading chlorinated contaminants such as 1,1,1-trichloroethane (...
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Most studies on the treatment of chlorinated contaminants by Fe(0) focus on aqueous system ***,few is known about the effectiveness of these tests for degrading chlorinated contaminants such as 1,1,1-trichloroethane (TCA) in *** this work,the reductive degradation performance of 1,1,1- TCA by Fe(0) was thoroughly investigated in a soil slurry *** effects of various factors including acid-washed iron,the initial 1,1,1-TCA concentration,Fe(0) dosage,slurry pH,and common constituents in groundwater and soil such as Cl-,HCO3-,SO42-,NO3-anions and humic acid (HA) were *** experimental results showed that 1,1,1-TCA could be effectively degraded in 12 h for an initial Fe(O) dosage of 10 g L-1 and a soil/water mass ratio of 1/*** soil slurry experiments showed two-stage degradation kinetics: a slow reaction in the first stage and a fast reductive degradation of 1,1,1-TCA in the second *** reductive degradation of 1,1,1-TCA was expedited as the mass concentration of Fe(O) *** addition,high pHs adversely affected the degradation of 1,1,1-TCA over a pH range of 5.4-8.0,and the reductive degradation efficiency decreased with increasing slurry *** initial 1,1,1-TCA concentration and the presence of Cl-and SO42-anions had negligible ***3-anions had a acceerative effect on 1,1,1-TCA removal,and both NO3-and HA had inhibitory effects.A Cl-mass balance showed that the amount of Cl-ions released into the soil slurry system during the 1,1,1-TCA degradation increased with increasing reaction time,suggesting that the main degradation mechanism of 1,1,1-TCA by Fe(O) in a soil slurry system was reductive dechlorination with 1,1-DCA as the main *** conclusion,this study provides a theoretical basis for the practical application of the remediation of contaminated sites containing chlorinated solvent.
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