Jan 1, 2024 · The Kapton/Nylon device outperforms the Al/PTFE device in terms of output power density. The Al/PTFE device’s peak power output under the identical testing conditions is just 1 mW at a ≈10 GΩ of load resistance, which is more than 10 times less than that of the Kapton/Nylon device, as presented in Fig. 4 (d), and (e). According to the

Mar 15, 2024 · Efficient harvesting of renewable evaporative energy from atmospheric air through hierarchical nano/microscale shaping of air-water interface Author links open overlay panel Ranran Fang a b , Chongfu Luo a , Zhonglin Pan c , Junchang Li a , Fulei Xu a , Jiangen Zheng a , Xuefeng Mao a , Xiaofa Wang a , Rui Li d , Yongbin Wei a , Yijing Chen a

May 1, 2019 · This paper considers how to maximize the energy efficiency of M2M transmitters (M2M-TXs) via the joint optimization of channel selection, peer discovery, power control, and time allocation via a two-stage three-dimensional matching algorithm. In this paper, we emphasize on energy-efficient resource allocation for the energy harvesting based cognitive machine-to-machine (EH-CM2M) communication

solutions to this problem is energy harvesting [1], where in each node a harvesting device harvests energy from ambient sources such as light, wind or vibration, and stores it in an energy storage device such as a rechargeable battery or a supercapacitor.

Oct 10, 2020 · The thermoelectric effect encompasses three different effects, i.e. Seebeck effect, Peltier effect, and Thomson effect, which are considered as thermally activated materials that alter directions in smart materials. It is currently considered one of the most challenging green energy harvesting mechanisms among researchers. The ability to utilize waste thermal energy that is generated by

Aug 16, 2024 · Introduction. Atmospheric water vapor is a plentiful and reliable source in addition to other primary freshwater supplies, particularly in arid areas. 1, 2, 3 Atmospheric water harvesting (AWH) can be achieved in several ways, 4 including using electricity 5, 6 or radiative cooling 7 to cool the condensation surface’s temperature below the dew point, mechanical vapor compression processes, 8

Energy harvesting (EH) endows device-to-device (D2D) communication and cellular equipment with the ability of continuous communication to provide internet-of-things (IoT) services in natural areas. While the available energy, which relies on EH, becomes an extra nonnegligible factor in resource allocation. Besides, we integrate uplink non-orthogonal multiple access (NOMA) with D2D

Mar 18, 2024 · Nature evolves intricate surfaces/interfaces to achieve high energy efficiency, providing a promising, low-carbon solution to energy crisis. This Review explores diverse energy processes in nature

Sep 1, 2023 · The energy efficient resource allocation for device to device communications underlying NOMA-based cellular networks with energy harvesting, was studied by Pei et al. [20]. The performance of NOMA schemes in wireless powered communication networks considering energy harvesting and energy efficiency, was studied by Zewde et al. [21].

Nov 14, 2018 · Highlighted below are the components needed to build the rainwater harvesting system. Catchment and drainage. The catchment system of a rainwater harvesting system is usually a roof connected to the rainwater storage tank. While any kind of roof can be used in rainwater harvesting, the best one to use is an unpainted metal roof.

2024/4/30/ · The atmosphere contains 13,000 trillion litres of water, and it is a natural resource available anywhere. Sorption-based atmospheric water harvesting (SAWH) is capable of extracting water vapour . Energy harvesting for self-powered wearable device applications. 2023/7/10/ · Energy Harvesting. 1. Introduction.

Jan 6, 2021 · In a recent study, Zhao et al. developed a hybrid TENG-PENG device for efficiently harvesting mechanical rotation energy (Figure 8 F). 109 By integrating with an energy-managing circuit (Figure 8 G), the system generated a stable and constant output voltage of 3.6 V, which could directly power commercial electronics or charge energy-storage units.

Apr 17, 2020 · Due to the limited battery capacity in mobile devices, simultaneous wireless information and power transfer (SWIPT) has been proposed as a promising solution to improve the energy efficiency (EE) in Internet-of-Things (IoT) networks, i.e., device-to-device (D2D) networks, by allowing mobile devices to harvest energy from ambient radio-frequency (RF) signals. However, the nonlinear behavior of

May 1, 2019 · The blocks of an RF energy harvesting circuit, which are antenna and matching circuit, rectifier, voltage multiplier, and energy storage device or load blocks, have been investigated based on efficiency in detail.

In this paper, we propose a resource management method based on deep learning, which controls both the transmit power and the power splitting ratio to maximize the sum rate with low computational complexity in D2D networks with energy harvesting requirements. The introduction of the energy harvesting requirements to D2D networks makes it hard to design an effective resource management solution