Thermotics Study of the Semimetallic Nylon1010 Composite

Han, Dongtai; Ge, Shirong; Liu, Liguo

doi:10.1016/s1006-1266(07)60004-2

Cited by 11 publications

(18 citation statements)

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“…Fluralaner shows low toxicity to zebrafish Danio rerio (Hamilton) and aquatic algae Pseudokirchneriella subcapitata (Korshikov) F. Hindák, and moderate toxicity to the common carp Cyprinus carpio Linnaeus . Meanwhile, a viable and easy‐to‐industrial route for the synthesis of fluralaner has been reported . Fluralaner is just used in animals for control of ticks and fleas, however, the above information indicates that fluralaner has great potential to be used as a pesticide for the control of agricultural insect pests in the future, similar to two other GABAR‐targeting compounds, fipronil and avermectin, which are also used as parasiticide in animals …”

Section: Introductionmentioning

confidence: 99%

Neurotoxicity and mode of action of fluralaner on honeybee Apis mellifera L.

Sheng

Huang

Liu

et al. 2019

Pest Management Science

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BACKGROUND: Fluralaner, a novel pesticide that targets the -aminobutyric acid (GABA) receptor (GABAR) subunit of resistant to dieldrin (RDL), exhibits strong potential to be an insecticide to control agricultural insect pests. However, the risk and action of fluralaner to economic insects, e.g., honeybee Apis mellifera Linnaeus, remains unclear. RESULTS:In this study, both oral and contact toxicity of fluralaner to honeybee were found to be 0.13 g adult -1 . Abamectin, dieldrin, ethiprole, -endosulfan, fipronil and fluralaner strongly inhibited the GABA-induced current in A. mellifera RDL (AmRDL), expressed in Xenopus laevis oocytes, with median inhibitory concentration (IC 50 ) values of 7.99, 868.1, 27.10, 412.0, 11.21 and 13.59 nM, respectively. The binding free energy and electrophysiological response of AmRDL and insecticides were opposite. The correlation values between toxicity (to A. mellifera) and binding free energy/electrophysiological inhibition (to AmRDL) were at a moderate level. CONCLUSION:In conclusion, we report for the first time the notable risk of fluralaner to honeybee in vivo and compared the actions of GABAR-targeted insecticides on the AmRDL receptor.

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Section: Introductionmentioning

confidence: 99%

Neurotoxicity and mode of action of fluralaner on honeybee Apis mellifera L.

Sheng

Huang

Liu

et al. 2019

Pest Management Science

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“…The incorporation of MTs powder influences the heat release rate and cumulative heat release of CCMs due to its crystallization nucleation and pozzolanic effect. The crystallization nucleation and pozzolanic effect of MTs occur in the hydration acceleration period and the hydration stable period of CCMs, respectively [30,31,43,47,48]. Meanwhile, the incorporation of MTs reduces the proportion of cement clinker in CCMs and influences the effective w/c ratio of CCMs.…”

Section: Discussionmentioning

confidence: 99%

“…The incorporation of MTs reduces the proportion of cement clinker and the concentration of Ca 2+ in CCMs, therefore prolonging the nucleation time of Ca(OH) 2 and delaying the end time of the induction period [30]. When the MTs powder content is small, the dilution effect of MTs and the surface of MTs act as crystallization nucleation sites in CCMs, thus promoting the hydration of CCMs and increasing their hydration heat release rate.…”

Section: Discussionmentioning

confidence: 99%

“…This model is based on hydration heat and can be used to determine the hydration process and kinetic parameters of the CCMs. Yan et al [30,31] discovered that the Krstulovic-Dabic model can better characterize the hydration process of the CCMs when the fly ash (FA) content is not more than 65% and when the slag (SL) content does not exceed 70%. Cheng et al [16] found that the Krstulovic-Dabic model can also simulate the hydration kinetics of cement-iron tailings powder composite cementitious materials.…”

Section: Introductionmentioning

confidence: 99%

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Hydration Heat and Hydration Kinetics of Cement Paste Compound with Molybdenum Tailings Powder: A Research Article

Cheng,

Meng,

2023

Coatings

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Molybdenum tailings powder (MTs) has potential pozzolanic activity and can be used as a mineral admixture. In order to comprehend the influence of MTs powder on the cement hydration process, the hydration heat and kinetics of composite cementitious materials (CCMs) were investigated using an isothermal calorimeter and the Krstulovic–Dabic model. Furthermore, the influences of fly ash (FA), slag (SL), and MTs powder on hydration heat were compared and analyzed, considering the same content. The results show that the proper amount of MTs can promote the hydration of CCMs. When the content of MTs is 5% and 15%, the second exothermic peak of the CCMs appears 2.30% and 4.27% earlier, and the exothermic peak increases by 2.72% and 1.34%, respectively. The cumulative heat release of CCMs gradually decreases with an increasing content of MTs powder. When the replacement of MTs, FA, and SL is 15%, respectively, the second exothermic peak of CCMs increases by 1.34%, −16.13%, and −12.04% for MTs, FA, and SL, respectively. The final heat release of MTs is higher than that of FA, but lower than that of SL. The hydration process of CCMs undergoes three stages: nucleation and crystal growth (NG), interactions at phase boundaries (I), and diffusion (D).

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“…The overlying key strata of the coal seam take a leading role in the distribution of the abutment pressure of the working face, 20 which is the main factor for the instability of the coal and rock stratum structure. 21 The stress arch effect formed by the fracture of the key strata blocks the transmission path of the overlying load to the lower coal seam, 22 which will rapidly reduce the peaking abutment pressure and can significantly relieve the pressure of the coal seam.…”

Section: Introductionmentioning

confidence: 99%

Stress Relief and Permeability Enhancement with Hydraulic Fracturing in Overlying Key Strata of Deep and Soft Coal Seams

Liu

Wang

et al. 2023

ACS Omega

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The technical problems of high in situ stress, high gas pressure, high gas content, and low coal seam permeability are widespread in deep soft coal seam excavation, which leads to frequent occurrences of dynamic phenomena, such as coal cannons and blowout holes. Based on the high-pressure hydraulic fracturing technology and process, this study puts forward a new technology of gas drainage in deep and soft coal seams by fracturing the overlying key strata to cut off the stress transmission path among coal and rock strata. According to the theories of key layer and masonry beams, the distribution locations of the main and subkey strata are determined, and based on uniaxial compression and Brazilian splitting experiments, the mechanical parameters of key stratum were tested. Combined with the results of numerical simulation and field test, initial pressure and fracturing radius of hydraulic fracturing technology for overlying key strata were determined, the stress relief effect and permeability variation law of coal seam after hydraulic fracturing in the main and subkey strata were analyzed, and then technical schemes for simultaneous fracturing of the key layer were designed. Field application results showed that the stress concentration phenomenon in soft coal seam excavation had been alleviated, and the stress relief effect of coal seam and the permeability were increased obviously. The volume and concentration of gas drainage were increased by 10 and 11%, respectively, the gas amount by 1.22 times; the frequency of dynamic phenomena such as coal cannons decreased by 95%, the gas concentration in return air flow by 20% during mining processes. This paper provided an innovative technical idea and process for gas control in deep and soft coal seam excavation, which could effectively solve the common and difficult problems about frequent occurrences of excessive gas concentration and dynamic phenomena.

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Thermotics Study of the Semimetallic Nylon1010 Composite

Cited by 11 publications

References 0 publications

Neurotoxicity and mode of action of fluralaner on honeybee Apis mellifera L.

Neurotoxicity and mode of action of fluralaner on honeybee Apis mellifera L.

Hydration Heat and Hydration Kinetics of Cement Paste Compound with Molybdenum Tailings Powder: A Research Article

Stress Relief and Permeability Enhancement with Hydraulic Fracturing in Overlying Key Strata of Deep and Soft Coal Seams

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