Energy absorbed

Dynamic vibration absorber (DVA) integrated with a piezoelectric stack energy harvesting subjected to base excitation is introduced in this paper. The system of dynamic vibration absorber and piezoelectric stack energy harvesting system (DVA-PSEH) has two functions, the first is to reduce vibrations for the primary system, and the second is to convert a part of the vibrational energy into electricity through the piezoelectric effect.

10p viisac 15-09-2023 8 3   Download

In recent years, the study on the growth and characterization of Tutton's salts has drawn considerable attention due to their potential applications in the area of solar energy absorber, chemical energy storage, ultraviolet (UV) light filters and even in missile approach warning systems.

6p viberbers 09-08-2023 8 3   Download

Net radiation (Rn) is the solar energy absorbed by vegetation and land and water surfaces as a key driving force for evapotranspiration. The article presents the results of calculating the average daily net radiation value according to the FAO–56 model, IRMAK model, and Remote sensing model.

14p viironman 02-06-2023 8 3   Download

The aim of this thesis is to ensure that accurate calibration factors are provided to radiotherapy clinics when moving to the new linac-based primary standard calibrations. Specifically, this thesis quantifies the error introduced when using a calibration factor from the ARPANSA Elekta linac on a Varian high energy platform beam at 6 MV.

102p runthenight05 01-03-2023 4 2   Download

To account for an enhancement of the absorbed dose to both active marrow and endosteum due to secondary electrons generated in bone trabeculae and depositing energy in adjacent marrow tissues, a specific method for bone dosimetry has been developed and introduced in ICRP Publication 116 for photons and neutrons.

7p vironald 15-12-2022 8 3   Download

Biodiesel is a source of renewable energy produced through the transesterification of vegetable oils, animal fats, or the esterification of fatty acids with short chain alcohols such as methanol, ethanol, propanol and butanol in presence of acid catalysts (H2SO4, HCl...), basic catalysts (KOH, NaOH) or biocatalysts (lipase enzymes).

3p vispyker 16-11-2022 7 1   Download

A new type of floating breakwater (FB) is proposed in this paper. Its hydrodynamic performance has been tested. The structure of the new breakwater named perforated semi-circular floating breakwater (SCFB) consists of two parts: a main body of a box-shaped base block and a semi-circular upper structure is perforated for the purpose of absorbing breaking and overtopping wave energy.

12p vimclaren 12-10-2022 6 2   Download

When an acoustic wave is absorbed by a conductor, the transfer of the momentum from the acoustic wave to the conduction electron may give rise to a current usually called the AE current. In this paper, we examine the calculated AE current in the QW in case the electron relaxation time is not dependent on the energy.

4p vikoenigsegg 29-09-2022 8 3   Download

Mixed-phased Inx Sey thin film containing InSe, In2 Se3 and In6 Se7 phases was prepared by M-CBD method and characterized by X-ray diffraction, AFM, optical spectroscopy and J-V measurements. Structural, optical and electrical conductance properties were modified by annealing the films at different temperatures. Optical and morphological properties were also investigated dependently on temperature and concentration of cationic precursor solution.

13p langthannam 29-12-2021 13 1   Download

This paper focuses on vibration mitigation and energy harvesting in a coupled oscillator-pendulum system. Generally, the concept of a vibration-based energy harvester is similar to a vibration absorber, it is naturally desired to use the same system for simultaneous vibration reduction and energy recovery.

16p guernsey 28-12-2021 8 0   Download

This paper presents the development and validation of a mesoscale composites damage model for predicting the energy absorption capability of “tension-absorber” joints. Tension-absorber joints are composite bolted joints specially designed to absorb energy in a crash via “extended bearing failure”, which involves the bolt forcing its way through the composite over a long distance.

18p guernsey 28-12-2021 15 0   Download

The proposed system is composed of two symmetric disk-pair layers, called the disk-pair dimer, that exhibited two identical but coupled magnetic resonances at the same frequency. This unique design allows to absorb the electromagnetic energy at the transmission mode, which is rarely achieved in the conventional modes. By optimizing the coupling strength between two disk-pair layers, a total absorptivity could be enhanced up to 90%.

7p parasite 02-06-2021 10 1   Download

Chlorophyll is the most important factor enabling plants to absorb, transfer and transform light energy and plays an important role in yield formation. Brassica napus is one of the most important oil crops.

9p vijichea2711 28-05-2021 6 1   Download

In this preliminary study, black spinel-carbon nanocomposite was synthesized and investigated for improved solar radiation absorbance aimed for the solar-driven integrated MD seawater desalination process. The black spinel-carbon nanocomposites were based on black spinel CuCr2O4 doped with various Fe3+ content. The black spinel-carbon nanocomposite was synthesized using the hydrothermal method and was characterized with respects to structural morphology and radiation absorbance properties.

10p cothumenhmong9 04-01-2021 17 3   Download

Since the first observation of the fascinating absorption property, metamaterials have been become a scientific spotlight. A distinctive interest has been given to metamaterial absorber (MA) with a broad operating band, which are more useful for future applications. In this report, we studied numerically and experimentally the electromagnetic properties of perfect MAs using ring-shaped structures at microwave frequencies. By creating a magnetic resonance, the ring structure confines electromagnetic energy at the first- and third-order resonances.

12p nguyenxuankha_bevandan 14-08-2020 13 1   Download

Drying is an important post-harvest preservation technique of spices. As drying is an energy intensive process, accessibility to good drying methods is essential for the economical betterment of the farmers. Solar energy based drying techniques offer better return on investment to farmers. Developed hybrid solar drying system can be used for drying various agricultural products like spices, fruits and vegetables. The dryer has been coupled to an electric air heater having an auto controlling facility and blackened surface of absorber for improved drying efficiency.

7p gaocaolon5 14-06-2020 16 1   Download

The convective heat transfer coefficient was improved up to 23.84% by using TiO2 nanofluids instead of the base fluid. It was found that TiO2 nanofluid with a volume fraction of 0.3% (at a mass flow rate of 0.0689 kg/s) will provide the maximum efficiency enhancement in the PTSC (9.66% higher than the water-based collector). Consequently, the absorbed energy parameter was found to be 10.3% greater than that of the base fluid.

12p cleopatrahuynh 01-06-2020 16 0   Download

Variation of the impact characteristics such as maximum contact load, maximum deflection, maximum contact time, absorbed energy are depicted in the figures. The results showed that PVDF nanofibers are not a good choice for toughening epoxy and improving impact damage resistance of GFRP.

6p tohitohi 19-05-2020 7 0   Download

Nanoparticles have wide applications in everyday life. As world population is increasing, it is necessary to use the modern technologies to fulfill needs of present era.

8p caygaocaolon2 14-03-2020 25 1   Download

This article presents one of the key approaches to "increasing the efficiency of propellant" by regulation the grain velocity of the initial particles of propellant by absorbing camphor on their surfaces (phlegmatic propellant).

5p abcxyz123_02 03-03-2020 9 0   Download