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Water stress and provenance could affect the secondary metabolites synthesis and accumulation in herbs. Thus, this study explored the effect of soil water moisture and provenance on the growth of Paris polyphylla Smith var. yunnanensis (PPY). Three provenances (Jinping, Luquan and Weixi in Yunnan, China) of PPY samples were grown in different soil water moisture conditions [0.80, 0.70 and 0.50 field...
Rainfall and seismic activity have significant influence on the stability of dangerous rockmass. In this paper, the dangerous rockmasses are classified into three instability types according to the failure modes: sliding, falling, and toppling. The discrete element method (COMSOL) was carried out to investigate the stability of three different rockmass types. In the numerical simulation, three load...
The link between the acute toxicity of heavy metals on algae and the bioadsorption capacity of heavy metals by algae has seldom been reported. In the present study, an acute toxicity experiment was carried out to assess the toxic effects of Pb, Cu, and Cd for Chlorella sorokiniana, and the 96 h IC₅₀ values were 0.249 mg/L, 0.485 mg/L, 46.108 mg/L, and 21.00 mg/L for Cu, Cd, Pb (total), and Pb (free...
Cutting fluid wastewater is a highly concentrated organic effluent generated in the production of silicon water. Because the wastewater that contains synthetic organic compounds is characterized by high COD content, complex components, and poor biodegradability, it is absolutely formidable to be fully treated using one method. Therefore, the combined Fenton-MBR process was developed and explored in...
The aim of the study was to evaluate the effect of sucrose, formic acid and lactic acid bacteria (LAB) inoculant on chemical composition and in vitro rumen digestibility of drooping wild ryegrass (Elymus nutans Griseb.) silage. Fresh drooping wild ryegrass was harvested at boot stage and ensiled with: 1. control (untreated), 2. 20 g · kg−1 sucrose (S), 3. 3 g · kg−1 formic acid (FA) and 4. 0.005 g...
Cold-inducible RNA binding protein (CIRP) is over-expressed during cold and many other stresses, and could regulate the adaptation to hypothermia. In the present investigation, the objective was to determine the expression of CIRP in adult yak heart, liver, spleen, lung, kidney, brain, ovary, testis and skin by relative quantitative real time polymerase chain reaction (RT-PCR), Western blot and immunohistochemistry...
To study the influence of the random load on the V-lock chain ring for mining, the numerical simula-tion technology is used. The dynamic tension is obtained by using the dynamic model of the plough. The life and damage nephograms are obtained by using ANSYS Workbench. The analysis results show that the short fatigue life region of the V-lock chain ring for mining is mainly concentrated on the transition...
Plant breeders have focused much attention on polyploid trees because of their resistance for forestry. To evaluate the impact of intraspecies genome duplication on NaHCO3 stress, a series of Betula platyphylla autotetraploids and diploids were generated from the same family. The growth, proline content and proline-associated gene expression of these autotetraploid individuals were compared with those...
Background: Kidney has long been thought to be a body’s largest organ of elimination for maintaining acid-base balance. In recent years, the research on kidneys has mainly focused on the structural characteristics of the kidney of single age group animals. In this paper we used histological and immunohistochemical methods to observe and compare the structure characteristics of yak kidney and the expression...
Oujiang Estuary is a complex tidal estuary with many channels and shoals in the East China Sea, which was affected by typhoon frequently. The navigation channel of Wenzhou Port is located in the north branch of Oujiang Estuary, which happened serious sediment siltation in many times due to typhoon impact. The regulation is considered to decrease siltaion of the channel and protect shoals as well....
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