Hemostatic dressings with multiple functions are superior to current hemostatic dressings for use in the complex situation of emergency *** particular,the existing dressings lack consideration for the prevention of hy...
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Hemostatic dressings with multiple functions are superior to current hemostatic dressings for use in the complex situation of emergency *** particular,the existing dressings lack consideration for the prevention of hypothermic shock after massive *** this study,gelatin(GN)and oxidized pectin(OP)were used for Schiff base cross-linking,and then polyvinyl alcohol(PVA)solution mixed with hemostatic caffeic acid(CA)was introduced to obtain aerogel substrate material(CB)after ***(PDMS)and silver nanowires(Ag NWs)were used to construct a hydrophobic layer,an antibacterial layer and an infrared reflective layer on both sides of CB to prepare a multifunctional aerogel wound dressing with heat preservation,antifouling,hemostasis and antibacterial properties(PDMS-Ag NW-CB).The results showed that the infrared transmittance of PDMS-Ag NW-CB is almost 0,so that thermal energy loss from the body is *** contact angles with water and blood are 129°and 120°,respectively,which have the effect of *** dressing can absorb blood quickly within 10 min,adhere to and gather platelets,and achieve *** has good antibacterial and ***,PDMS-Ag NW-CB has great potential in application to emergency treatment.
A novel heterogeneous networked dual-phase structure, composed of bainite grains surrounding the ferrite grains and forming a networked structure, was successfully introduced into the low-carbon ferrite-bainite steel ...
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作者：
Meet K PatelMohini DarjiBansari PatelStudent of Bachelor of Technology
Department of Computer Science & Engineering Devang Patel Institute of Advance Technology and Research (DEPSTAR) Faculty of Technology and Engineering (FTE) Charotar University of Science and Technology (CHARUSAT) Changa 388421 Gujarat India
Adequate rainfall prediction is important in many aspects, the most important being planning in agriculture, correct management of water resources, and early warnings in the event of impending natural disasters. Tradi...
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Adequate rainfall prediction is important in many aspects, the most important being planning in agriculture, correct management of water resources, and early warnings in the event of impending natural disasters. Traditional techniques have been unsuccessful in handling nonlinear and dynamic characteristics of atmospheric processes. In this research, we look into the usage of Liquid State Machines, a type of spiking neural network, in rainfall prediction. One of the main reasons behind this choice is that the LSMs are known to handle temporal data with dynamic memory capabilities robustly, so they would turn out to be the right choice in modeling nonlinear and time-dependent patterns inherent in rainfall data. This will include preprocessing the dataset to normalize the input features and create lag features to capture the temporal dependencies. Then, the constructed high-dimensional state of the reservoir has to be mapped back to the desired output—rainfall amount or quantity—which involves building a model for LSM with an input layer, a dynamic reservoir or liquid state, and then the readout layer. The model will be trained using backpropagation across time to minimize the mean squared error between the anticipated and real rainfall quantities. For this purpose, the LSM model is trained and tested on a dataset built from the historical weather and rainfall data of the Gujarat region. Various metrics such as MSE, RMSE, MAE, and R² are used to quantify the accuracy of the predictions. The LSM model accurately predicts rainfall by capturing temporal and nonlinear interactions in the data.
Existing line protection methods for multi-terminal direct current (MTDC) systems are constrained by the placement and values of boundary elements. To overcome this limitation, this paper proposes a non-unit DC line p...
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Converting solar energy by to other forms of energy has attracted a lot of interest from academy to ***,the overall utilization efficiency of solar energy is inferior due to the limited effective solar spectrum ***,in...
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Converting solar energy by to other forms of energy has attracted a lot of interest from academy to ***,the overall utilization efficiency of solar energy is inferior due to the limited effective solar spectrum ***,in order to utilize the broadband solar spectrum more efficiently,a novel hybrid absorber structure was proposed,which consists of a four-layer planar nanofilm with dual functions of heat absorption and *** average absorption in the visible range is larger than 0.95,and in the near-infrared spectral region,the average absorption is still larger than *** overall absorption of the absorber is over 0.86,while the thermal emittance is lower than 0.04,which can lead to remarkable thermal utilization ***,the full range of the solar irradiance can be utilized by incorporating the photocatalytic TiO_(2) layer into the absorber,which is active in the ultraviolet spectral *** addition to the broadband spectral usage,the virtues of inexpensiveness and environmental friendliness make it a facile alternative to be applied in solar energy transformation.
Planar MOSFETs are reaching their physical limits. To overcome the limitations and improve channel gate control, FinFET technology, which uses many gate devices, is a superior choice while lowering the size of planar ...
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Few-shot relation extraction (FSRE) is a key task in Information extraction that aims to train models using a small number of labeled samples to identify relation categories in sentences. Existing research widely adop...
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This study investigated the effect of konjac glucomannan(KGM)on the flotation separation of calcite and ***-flotation tests showed that under the action of 50 mg/L KGM,the floatability of calcite notably decreased,whi...
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This study investigated the effect of konjac glucomannan(KGM)on the flotation separation of calcite and ***-flotation tests showed that under the action of 50 mg/L KGM,the floatability of calcite notably decreased,while the impact on scheelite was negligible,resulting in a recovery difference of 82.53%.Fourier transform infrared(FTIR)spectroscopy and atomic force micro-scopy(AFM)analyses indicated the selective adsorption of KGM on the calcite *** results of the zeta potential and UV-visible absorption spectroscopy revealed that KGM prevented the adsorption of sodium oleate on the calcite surface.X-ray photoelectron spec-troscopy(XPS)analysis further confirmed the chemical adsorption of KGM on the calcite surface and the formation of Ca(OH)_(2).The density functional theory(DFT)simulation results were consistent with the flotation tests,demonstrating the strong adsorption perform-ance of KGM on the calcite *** study offers a pathway for highly sustainable and cost-effective mineral processing by utilizing the unique properties of biopolymers such as KGM to separate valuable minerals from gangue minerals.
Composite seal rings are alternate high-performance materials for supplying to engines and compressors in several industries. Polytetrafluoroethylene (PTFE) and Polyetheretherketone (PEEK) seals reinforced by carbon p...
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Composite seal rings are alternate high-performance materials for supplying to engines and compressors in several industries. Polytetrafluoroethylene (PTFE) and Polyetheretherketone (PEEK) seals reinforced by carbon powder and glass fibers were investigated. The seal specimens were heated at 150-200 degrees C for a duration of 24 h. The hardness and microstructure of specimens were observed after the test. Taguchi technique was used for design of experiment to analyzed the parameters that affected to the seal hardness. The hardness of all samples decreased when increasing temperature, and the hardness of PTFE and PEEK with carbon powder slightly increased after heating at higher temperature. The PEEK with 30% carbon showed the highest hardness compared to the others at temperature of 150 and 200 degrees C. The carbon reinforcements promoted increasing hardness of the composite seal rings. Besides, the reinforcements showed a good distribution in the composite matrix which was nearly the same as the microstructure of the compressor seal ring used in industrial *** (c) 2021 Elsevier Ltd. All rights *** and peer-review under responsibility of the scientific committee of the 2021 Research, Invention, and Innovation Congress: Materials science.
To improve the surface performance of TB2 alloy,pack boriding was performed at 1100℃ for 20 h with 4 wt.%La_(2)O_(3).The composition and thickness of boride layer and corrosion and wear properties of borided TB2 allo...
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To improve the surface performance of TB2 alloy,pack boriding was performed at 1100℃ for 20 h with 4 wt.%La_(2)O_(3).The composition and thickness of boride layer and corrosion and wear properties of borided TB2 alloy were *** results show that La_(2)O_(3) can promote the growth,continuity,and compactness of boride layer,and the length of TiB whisker increases from 16.80 to 21.84μ*** reason is that La_(2)O_(3) can react with B to form La−B active groups and further to improve the growth of the boride *** wear and corrosion resistances of TB2 alloy are enhanced by boriding with La_(2)O_(3).The wear mechanisms are adhesive wear and abrasive wear for unborided and borided TB2 alloys,respectively,and the corrosion mechanism is changed from local corrosion(unborided TB2 alloy)to uniform corrosion(borided TB2 alloy).
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