共查询到20条相似文献,搜索用时 15 毫秒
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Self‐Powered Wireless Sensor Node Enabled by an Aerosol‐Deposited PZT Flexible Energy Harvester 下载免费PDF全文
Geon‐Tae Hwang Venkateswarlu Annapureddy Jae Hyun Han Daniel J. Joe Changyeon Baek Dae Yong Park Dong Hyun Kim Jung Hwan Park Chang Kyu Jeong Kwi‐Il Park Jong‐Jin Choi Do Kyung Kim Jungho Ryu Keon Jae Lee 《Liver Transplantation》2016,6(13)
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Self‐Powered Wireless Sensor Node Enabled by a Duck‐Shaped Triboelectric Nanogenerator for Harvesting Water Wave Energy 下载免费PDF全文
Abdelsalam Ahmed Zia Saadatnia Islam Hassan Yunlong Zi Yi Xi Xu He Jean Zu Zhong Lin Wang 《Liver Transplantation》2017,7(7)
This paper presents a fully enclosed duck‐shaped triboelectric nanogenerator (TENG) for effectively scavenging energy from random and low‐frequency water waves. The design of the TENG incorporates the freestanding rolling mode and the pitch motion of a duck‐shaped structure generated by incident waves. By investigating the material and structural features, a unit of the TENG device is successfully designed. Furthermore, a hybrid system is constructed using three units of the TENG device. The hybrid system achieves an instantaneous peak current of 65.5 µA with an instantaneous output power density of up to 1.366 W m?2. Following the design, a fluid–solid interaction analysis is carried out on one duck‐shaped TENG to understand the dynamic behavior, mechanical efficiency, and stability of the device under various water wave conditions. In addition, the hybrid system is experimentally tested to enable a commercial wireless temperature sensor node. In summary, the unique duck‐shaped TENG shows a simple, cost‐effective, environmentally friendly, light‐weight, and highly stable system. The newly designed TENG is promising for building a network of generators to harvest existing blue energy in oceans, lakes, and rivers. 相似文献
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M. A. Parvez Mahmud Nazmul Huda Shahjadi Hisan Farjana Mohsen Asadnia Candace Lang 《Liver Transplantation》2018,8(2)
Implantable medical devices (IMDs) have experienced a rapid progress in recent years to the advancement of state‐of‐the‐art medical practices. However, the majority of this equipment requires external power sources like batteries to operate, which may restrict their application for in vivo situations. Furthermore, these external batteries of the IMDs need to be changed at times by surgical processes once expired, causing bodily and psychological annoyance to patients and rising healthcare financial burdens. Currently, harvesting biomechanical energy in vivo is considered as one of the most crucial energy‐based technologies to ensure sustainable operation of implanted medical devices. This review aims to highlight recent improvements in implantable triboelectric nanogenerators (iTENG) and implantable piezoelectric nanogenerators (iPENG) to drive self‐powered, wireless healthcare systems. Furthermore, their potential applications in cardiac monitoring, pacemaker energizing, nerve‐cell stimulating, orthodontic treatment and real‐time biomedical monitoring by scavenging the biomechanical power within the human body, such as heart beating, blood flowing, breathing, muscle stretching and continuous vibration of the lung are summarized and presented. Finally, a few crucial problems which significantly affect the output performance of iTENGs and iPENGs under in vivo environments are addressed. 相似文献
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Xiu Xiao Xiangqian Zhang Siyuan Wang Han Ouyang Pengfei Chen Liguo Song Haichao Yuan Yulong Ji Peihong Wang Zhou Li Minyi Xu Zhong Lin Wang 《Liver Transplantation》2019,9(40)
Vibration in mechanical equipment can serve as a sustainable energy source to power sensors and devices if it can be effectively collected. In this work, a honeycomb structure inspired triboelectric nanogenerator (HSI‐TENG) consisting of two copper electrode layers with sponge bases and one honeycomb frame filled with polytetrafluoroethylene (PTFE) balls is proposed to harvest vibration energy. The application of a compact honeycomb structure increases the maximum power density of HSI‐TENG by 43.2% compared to the square grid structure and provides superior advantages in large‐scale manufacturing. More importantly, the nonspring‐assisted HSI‐TENG can generate electricity once the PTFE balls obtain sufficient kinetic energy to separate from the bottom electrode layer regardless of the vibration frequency and direction. This is fundamentally different from the spring‐assisted harvesters that can only work around their natural frequencies. The vibration model and working criteria of the HSI‐TENG are established. Furthermore, the HSI‐TENG is successfully used to serve as a self‐powered sensor to monitor engine conditions by analyzing the electrical output of the HSI‐TENG installed on a diesel engine. Therefore, the nonspring‐assisted HSI‐TENG provides a novel strategy for highly effective vibration energy harvesting and self‐powered machinery monitoring. 相似文献
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Supercapacitors: Solid‐State Dual Function Electrochemical Devices: Energy Storage and Light‐Emitting Applications (Adv. Energy Mater. 19/2016) 下载免费PDF全文
Kihyon Hong Min‐Gyeong Kim Hae Min Yang Dong Chan Lim Joo Yul Lee Sung Joo Kim Illhwan Lee Keun Hyung Lee Jong‐Lam Lee 《Liver Transplantation》2016,6(19)
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Flexible Electronics: Extremely Flexible Transparent Conducting Electrodes for Organic Devices (Adv. Energy Mater. 1/2014) 下载免费PDF全文
Sunghoon Jung Sunghun Lee Myungkwan Song Do‐Geun Kim Dae Sung You Jong‐Kuk Kim Chang Su Kim Tae‐Min Kim Kwon‐Hyeon Kim Jang‐Joo Kim Jae‐Wook Kang 《Liver Transplantation》2014,4(1)
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