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排序方式: 共有568条查询结果,搜索用时 15 毫秒
561.
Sarkar Niloy Sharma Radhey Shyam Kaushik Mahima 《Environmental science and pollution research international》2021,28(11):13221-13228
Environmental Science and Pollution Research - Nanopriming is an emerging field of science which uses nanoparticles in solution to improve parameters of seed vigor. This leads to an initial... 相似文献
562.
Feng Mingbao Ye Chengsong Zhang Shengqi Sharma Virender K. Manoli Kyriakos Yu Xin 《Environmental Chemistry Letters》2022,20(3):1553-1560
Environmental Chemistry Letters - The global dissemination of antibiotic resistance is severely threatening public health. Several non-antibiotic chemicals facilitate the horizontal transfer of... 相似文献
563.
Hossain Md. Riad Sultana Rabeya Patwary Muhammad Mainuddin Khunga Noel Sharma Pankaj Shaker Sebastian Joya 《Environmental Chemistry Letters》2022,20(2):1265-1273
Environmental Chemistry Letters - A total of 12 billion tons of concrete materials are produced annually, about 2 tons per person. More sustainable buildings are thus needed to decrease the carbon... 相似文献
564.
Faisal Ayad A. H. Ahmed Dooraid N. Saleh B. Afzal Asif Sharma Gaurav 《Journal of Polymers and the Environment》2022,30(4):1478-1490
Journal of Polymers and the Environment - Novel sorbent named “coated filter cake by hydroxyapatite (CFCHAP)” that prepared from precipitation of hydroxyapatite nanoparticles on the... 相似文献
565.
Bhardwaj SK Sharma DK Anushi 《Journal of environmental biology / Academy of Environmental Biology, India》2006,27(3):505-508
A study was performed to investigate the effects of complete and skeleton photoperiods on gonadal stimulation in baya weaver, Ploceus philippinus. In August 2003, five groups of acclimatized birds (n = 7 each) were exposed to 6L: 13D: 1L: 4D, 6L: 6D: 1L: 11D, 11L: 13D and 13L: 11D. Birds were refractory and their exposure to 6L:13D:1L:4D, 6L:6D:1L:11D, 11L:13D and 13L:11D did not evoke any response. This clearly indicates that the birds were insensitive to the stimulatory effects of these photoperiods and perceived them as short days. An attempt was made to test the responsivity by subjecting all these groups to long day exposure after 16 weeks of experiment. Under 16L: 8D, birds did not show a response during the first 4 weeks of exposure (week 16 to week 20), but thereafter there was a significant photoinduction except 11L:13D (week 24), but the rate and magnitude was different. Until the end of the experiment (32 weeks), all groups of birds had maximum testicular volume except 11L:13D. Birds pre-exposed to 6L:13D:1L:4D, 6L:6D:1L:11D, 11L:13D and 13L:11D responded to 16L:8D, which suggests that these photoperiods helped the birds in recovering their photosensitivity. The results from this experiment indicate that baya weaver interprets a light period depending when the light falls relative to its endogenous circadian system. 相似文献
566.
Rajeev Jain Pooja Sharma Shalini Sikarwar 《Environmental science and pollution research international》2013,20(3):1493-1502
The presence of dyes in water is undesirable due to the toxicological impact of their entrance into the food chain. Owing to the recalcitrant nature of dyes to biological oxidation, a tertiary treatment like adsorption is required. In the present study, unsaturated polyester resin (UPR) has been used as a sorbent in the treatment of dye-contaminated water. Different concentrations of Tropaeoline 000 containing water were treated with UPR. The preliminary investigations were carried out by batch adsorption to examine the effects of pH, adsorbate concentration, adsorbent dosage, contact time, and temperature. A plausible mechanism for the ongoing adsorption process and thermodynamic parameters have also been obtained from Langmuir and Freundlich adsorption isotherm models. Thermodynamic parameter showed that the sorption process of Tropaeoline 000 onto activated carbon (AC) and UPR were feasible, spontaneous, and endothermic under studied conditions. The estimated values for (ΔG) are ?10.48?×?103 and ?6.098?×?103 kJ mol?1 over AC and UPR at 303 K (30 °C), indicating towards a spontaneous process. The adsorption process followed pseudo-first-order model. The mass transfer property of the sorption process was studied using Lagergren pseudo-first-order kinetic models. The values of % removal and k ad for dye systems were calculated at different temperatures (303–323 K). The mechanism of the adsorption process was determined from the intraparticle diffusion model. 相似文献
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568.