Article
Energy & Fuels
Wei Niu, Xiaoshan Cao
Summary: This paper presents an explicit analytical solution for the maximum output power of annular thermoelectric generators (ATEG), which has been proven to be highly accurate. The maximum output power between ATEG and trapezoidal thermoelectric generator (TTEG) is then compared, and the results show that the relative error can reach the order of 10(-3) for the appropriate geometric parameter delta. The explicit analytical results of ATEG can provide some reference for the performance optimization of TTEG under suitable working conditions, with relative errors of 0.0261% and 0.074% for Bi2Te3 and PbTe materials.
Article
Chemistry, Physical
Zhongxin Liang, Liangzi Deng, Xin Shi, Shaowei Song, Congcong Xu, Ching-Wu Chu, Zhifeng Ren
Summary: In the current thermoelectric research framework, there are concerns regarding incorrect material selection and deficient device performance due to the assumption of constant thermoelectric junction contact resistivity values. This study shows that the contact resistivity in the n-type Mg3.2SbxBi2-x thermoelectric single leg is composition-dependent and high contact resistivity can considerably restrict performance. A proposed multi-layered single leg design aims to reduce contact resistivity and maximize the conversion efficiency of thermoelectric devices.
MATERIALS TODAY ENERGY
(2022)
Article
Engineering, Electrical & Electronic
Nianling Kuang, Zhengxing Zuo, Wei Wang, Ruiheng Liu, Zhengyang Zhao
Summary: Thermoelectric generators were investigated for improving output performances in annular thin-film thermoelectric generators (ATTEGs) by studying material properties and geometry parameters. Thinner substrates and more legs were found to enhance output performances in ATTEGs.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Physical
Chika Maduabuchi, Howard Njoku, Mkpamdi Eke, Chigbo Mgbemene, Ravita Lamba, J. S. Ibrahim
Summary: The geometry of tapered legs can improve the performance of thermoelectric generators, but the realistic isoflux boundary conditions are crucial for performance evaluation and optimization. Short legs are important for maximum power output, while long legs enhance device efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Saravanan Muthiah, Sushantika Choudhary, Priyanka Sangwan, Manju Yadav, Chandrakant Prajapati, Naval Kishor Upadhyay, Radhey Shyam, Sanjay R. Dhakate
Summary: Contact electrodes and their joining have been a major obstacle in achieving low-cost Mg2(Si,Sn) thermoelectric materials for thermoelectric generator applications. This study presents a facile single-step process to fabricate Sb-doped Mg2Si0.9Sn0.1 thermoelectric elements and contact joining simultaneously, effectively eliminating the main barrier in integrating Mg2(Si,Sn) materials in thermoelectric power generators.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Thermodynamics
Wenlong Yang, WenChao Zhu, Yang Li, Leiqi Zhang, Bo Zhao, Changjun Xie, Yonggao Yan, Liang Huang
Summary: A novel concentric annular thermoelectric generator (CATEG) is proposed to increase the energy conversion efficiency in automobile systems, with an optimized concentric annular heat exchanger significantly improving total heat transfer coefficient and maximum net power by 65% compared to conventional generators.
Article
Thermodynamics
Yan Cao, Nidal H. Abu-Hamdeh, Hazim Moria, Soheil Asaadi, Radi Alsulami, Hamed Sadighi Dizaji
Summary: This paper proposes a thin-film flexible annular solar thermoelectric generator for curved and variable surfaces, and conducts a comprehensive simulation to investigate the impact of various parameters on the generator's performance. The study reveals insights such as the optimal number of legs and inner radius for maximizing output power.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
ALkhadher Khalil, Ahmed Elhassnaoui, Said Yadir, Obbadi Abdellatif, Youssef Errami, Smail Sahnoun
Summary: The study utilized the finite element method to analyze different shapes including rectangle, I-leg, X-leg, trap-leg, and Y-leg, finding that the rectangular leg model exhibited the highest efficiency and output power among shapes of the same volume.
Article
Thermodynamics
Mingxin Bian, Zhiheng Xu, Caifeng Meng, Huanyu Zhao, Xiaobin Tang
Summary: This study proposes an optimized design and fabrication of the geometric configuration of thermoelectric legs to increase the power output of radioisotope thermoelectric generators in spacecraft. By increasing the heat dissipation on the side area, the performance enhancement principle is analyzed and applied. Special helix-shaped and spoke-shaped thermoelectric legs are fabricated using 3D printing technology. The analysis of the finite element method reveals that the helix-shaped legs and spoke-shaped legs can produce significantly higher power output compared to traditional cylinder-shaped legs. Integration of these special-shaped legs into the same space results in a higher power density due to lighter mass compared to traditional shapes. The simulation and experimental results confirm that the geometric design of thermoelectric legs with larger side areas can improve the output performance of thermoelectric devices.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Bin Huang, Zu-Guo Shen
Summary: In this study, annular thermoelectric generators (ATEGs) that match the geometric shape of automobile exhaust pipes were proposed to recover waste heat from automobiles. A theoretical model was constructed to assess the performance of automotive exhaust ATEGs (AEATEGs) and compared to commonly used automotive exhaust flat-plate thermoelectric generators (AEFTEGs). The results showed that AEATEGs outperformed AEFTEGs in terms of performance.
Article
Engineering, Environmental
Immanuel Paulraj, Vinothkumar Lourdhusamy, Chia-Jyi Liu
Summary: Organic polymers have attracted attention due to their low cost, ease of processing, flexibility, and low thermal conductivity. By hybridizing PVDF with Cu0.6Ni0.4, a composite material with significantly increased conductive path and reduced thermal conductivity has been fabricated. The composite material with a specific weight ratio achieves a high zT value at 400 K. Additionally, the fabricated thermoelectric generator exhibits high power output and power density at ΔT = 27 K.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Man-Wen Tian, Abdulaziz Alanazi, Mohana Alanazi, Hazim Moria, Khaled S. Al-Zahrani, Shaker A. Reda
Summary: A novel grid annular fin-based heat exchanger with porous inserts is proposed in this paper, which can boost the output power of the ATEG up to 1.45 and 2.12 times compared to conventional pipe-based heat exchangers. A comprehensive parametric analysis is carried out to investigate the impact of various geometric and operational parameters on thermal, exergetic, and economic factors. An optimized value of height, length, and angle of the porous insert can maximize the output power of the proposed system. Economic analysis is also provided to identify the corresponding costs of the heat exchanger for the heat recovery aim.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Yuemei Li, Zhiguo Zhang, Haojie Zhang, Xueliang Gu, Shaolong Chang
Summary: Thermoelectric harvesting technology is a clean energy-conversion technology, but traditional modules may fail due to thermoelectric leg damages. This study introduces a novel forked-finger electrode-structured thermoelectric module that improves output power through parallel electrical connection and thermal transfer.
Article
Nanoscience & Nanotechnology
I-Lun Jen, Chia-Shien Lin, Kuang-Kuo Wang, Hsin-Jay Wu
Summary: By introducing a low concentration of aluminum (Al) into Zn4Sb3, highly stable Al-Zn4Sb3 was achieved, exhibiting a conversion efficiency of 3% at a temperature difference of 225 K. The combination of dilute cationic doping and phase diagram engineering solidifies the potential of Zn4Sb3 as an efficient and sustainable green energy device.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Thermodynamics
WenChao Zhu, Zebin Weng, Yang Li, Leiqi Zhang, Bo Zhao, Changjun Xie, Ying Shi, Liang Huang, Yonggao Yan
Summary: Based on the numerical model established in this study, the influence of geometrical parameters on the output performance of annular thermoelectric modules (ATEM) was investigated under three typical application scenarios with different boundary conditions. It was found that the shape factors of optimal performance differ slightly when considering constant heat flow on the hot side, with variations in output power and efficiency depending on thermocouple thickness, angle, length, and number. An optimization problem for obtaining the best ATEG performance was formulated and solved using the non-dominant sorting genetic algorithm with elite strategy method (NSGA-II), considering conflicting relationships between optimal output power and efficiency.
Article
Materials Science, Multidisciplinary
Baiyang Shi, Jian Yang, Ji Wang
Summary: In this study, a newly proposed extended Galerkin method is used to investigate the dynamic response behavior of a generalized nonlinear dynamic system. The algebraic equations of vibration amplitudes are obtained through an integration of the weighted functions. The method is applicable to forced vibrations of nonlinear behavior and has been validated using the numerical Runge-Kutta method.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Yan Guo, Bin Huang, Licheng Hua, Jianbin Chen, Ji Wang
Summary: This work aims to build a mathematical model for delaminated composite plates on an elastic foundation using an improved layerwise theory and finite element implementation. The model takes into account the transverse deformation of the foundation and investigates its effect on the dynamic characteristics of delaminated plates. The study considers different delamination and foundation parameters, as well as different stacking sequences.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Jinghui Wu, Ji Wang, Longtao Xie, Sergei Zhgoon, Rongxing Wu, Aibing Zhang, Tingfeng Ma, Jianke Du
Summary: The Rayleigh-Ritz method is commonly used for analyzing free vibrations of elastic solids and structures. In this study, the Cartesian coordinate system is utilized for a simplified formulation and efficient evaluation of the vibrations of elastic ellipsoids. The procedure and formulation are validated by calculating the vibrations with geometric parameters and comparing them with known results and analysis from this study.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Thermodynamics
Aibing Zhang, Dandan Pang, Baolin Wang, Ji Wang
Summary: This paper develops a thermodynamic model based on dual-phase-lag bioheat transfer for the system of skin and wearable thermoelectric generators (WTEGs). The analytical solutions for temperature distribution and energy conversion performance of WTEGs are obtained. Several important conclusions are drawn, such as the consideration of blood perfusion heat convection and the neglect of contact thermal resistance between the skin and WTEG interface.
Article
Thermodynamics
Aibing Zhang, Guangyong Li, Baolin Wang, Ji Wang, Jianke Du
Summary: This paper develops a biothermomechanical model of skin for hyperthermia treatment of cancer based on the non-Fourier bioheat transfer theory. The model considers skin as a three-layer tissue with homogeneous and linear thermoelasticity. Analytical solutions of temperature profile and stress distribution are derived considering different factors. Numerical results show the significant influence of blood perfusion and sweating on temperature, thermal damage, and stress. The findings provide insights into skin biothermomechanics and can guide the design of biomedical devices for hyperthermia treatment.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2023)
Article
Engineering, Mechanical
Ji Lin, Jin Qian, Yu Xie, Ji Wang, Rui Xiao
Summary: In this study, a micromechanical mean-field shear transformation zone (STZ) model is developed to systematically describe the stress responses of amorphous polymers. The model captures the behaviors of amorphous polymers in various loading conditions and successfully reproduces the Bauschinger effect. The deformation-induced material polarization, in the form of an anisotropic distribution of STZs, is identified as the governing mechanism of the Bauschinger effect.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Materials Science, Multidisciplinary
Yumei Chen, Xiang Fang, Ji Wang, Matteo Filippi, Erasmo Carrera
Summary: By using a microstructure with an antisymmetric dual helix, we designed a metamaterial plate with wide band gaps for phononic crystals. The band structure and displacement transmission curves of the metamaterial plates were calculated and compared with and without considering the mass in the center of the dual helix. The results show excellent consistency in the band gaps, and the effects of various parameters on the band gaps were examined for further evaluation of potential applications.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Dongdong Guo, Haozhe Jiang, Lili Yuan, Tingfeng Ma, Jianke Du, Ji Wang
Summary: A metamaterial beam with carbon fiber-reinforced polymer (CFRP) is proposed to effectively reduce vibration. The dispersion curves are calculated using the transfer matrix method (TM), the frequency response is investigated using the spectral element method (SEM), and the displacement fields at different representative frequencies are displayed using the finite element method (FEM). Numerical analysis considers the effects of geometry, material parameters, and CFRP's cross-ply angle on the band gap, and three types of beams are discussed and compared. The results show that the cross-ply angle and length of CFRP significantly influence the band gaps, and the frequency and width of the band gaps vary when the CFRP layers are asymmetric. Experimental results agree well with numerical results in the low-frequency range for a CFRP beam with ten periods. These findings provide useful reference for the design optimization of metamaterial beams with wide band gaps, lightweight properties, and high strength.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Mechanical
Chencheng Lian, Baochen Meng, Huimin Jing, Rongxing Wu, Ji Lin, Ji Wang
Summary: This study analyzed the higher-order nonlinear vibrations and mode couplings of beams using the extended Galerkin method for a better understanding of dynamic properties. Numerical solutions of frequencies and mode shapes were obtained for a cantilever beam by approximating and solving the vibration equation under large deformation. The results demonstrated that the approximate solutions were accurate compared to the exact solutions for small amplitudes.
JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
(2023)
Article
Physics, Applied
Jiachao Xu, Yuanzhen Zheng, Tingfeng Ma, Hui Chen, Bowei Wu, Ji Wang, Shuanghuizhi Li, Iren Kuznetsova, Ilya Nedospasov, Jianke Du, Hao Shi, Dudu Chen, Fei Sun
Summary: In this study, the topological valley Hall edge states of elastic waves in phononic crystals were achieved by utilizing material differences. A phononic crystal structure with lantern rings was proposed, and it was found that differences in Young's modulus or density of the lantern-ring materials can cause the destruction of the spatial inversion symmetry, leading to the emergence of topological edge states. By reconfiguring the waveguide path and changing the operating frequency through modifying the lantern-ring materials, the limitations of traditional methods based on structural parameter changes were overcome, providing a promising approach for elastic wave manipulation and communication.
PHYSICAL REVIEW APPLIED
(2023)
Article
Thermodynamics
Dandan Pang, Aibing Zhang, Yage Guo, Junfeng Wu
Summary: This paper proposes a novel configuration for wearable thermoelectric generators and develops an analytical model based on human skin. The study finds that neglecting the metabolic heat generation underestimates the maximum power density of the generator, while increasing the contact pressure at the skin/W-TEG interface improves the performance.
Article
Materials Science, Multidisciplinary
Yangyang Zhang, Qi Lai, He Zhang, Yingwu Yang, Ji Wang, Chaofeng Lu
Summary: In this study, an electromechanical model is established to consider the wheel-path distribution under actual traffic conditions. The optimal lateral embedded locations for PEH units should be adjusted according to the prescribed traffic speed of the roads, and these mathematical results serve as guidelines for selecting the optimal lateral embedded locations for PEH units.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
J. H. Wu, J. Wang, E. Carrera, R. Augello
Summary: This work analyzes the wave propagation of Rayleigh type through a periodic elastic element covered with a T-plate. Viscous-spring artificial boundaries are used to satisfy the boundary conditions of the periodic structure. The Carrera Unified Formulation (CUF) is used to consistently express the various kinematics of the structure and obtain the wave propagation within the model. The numerical evaluation and comparison with analytical methods and COMSOL show that the results of this study are reliable and the developed model provides accurate analysis of T-plate periodic elastic structures.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Acoustics
Yurun Chen, Yan Guo, Rongxing Wu, Ji Wang, Huimin Jing, Ji Lin, Yahui Tian, Haifeng Zhang
Summary: The fast reduction in size of film bulk acoustic wave resonators results in enhanced electric fields and potential large deformations in operating devices. Therefore, the nonlinear behavior and accompanying properties of the resonator need to be considered in development and optimization for improved performance. A nonlinear formulation is presented for multilayered film bulk acoustic resonators, allowing analysis of vibration frequencies and mode shapes with consideration of larger mechanical deformations. Extensive research efforts have been made analytically and experimentally to understand the nonlinear behavior and properties, catering to the demands of communication and network technologies.
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)
