Results 41 to 50 of about 992,076 (345)

Quantum efficiency of photosynthetic energy conversion. [PDF]

Proceedings of the National Academy of Sciences, 1977
The quantum efficiency of photosynthetic energy conversion was investigated in isolated spinach chloroplasts by measurements of the quantum requirements of ATP formation by cyclic and noncyclic photophosphorylation catalyzed by ferredoxin. ATP formation had a requirement of about 2 quanta per 1 ATP at 715 nm (corresponding to a requirement of 1 quantum
R K, Chain, D I, Arnon
openaire   +2 more sources

Performance enhancement of nanogenerator achieved in branch-heterostructure piezoelectric ceramic fiber toward electrical transmission power line monitoring

Journal of Advanced Ceramics
A flexible composite-based piezoelectric nanogenerator (PENG) with low cost, stable properties, and sensitivity to mechanical deformation is highly suitable for constructing self-powered sensing layers for distributed electrical transmission power lines.
Haowei Lu, Zhenghua Hu, Xin Wang, Gaoru Chen, Xiaogan Zheng, Jintao Xia, Mingju Huang, Wenlong Yang, Junhui Liu, Benlin Hu   +9 more
doaj   +1 more source

The Molecular Photo-Cell: Quantum Transport and Energy Conversion at Strong Non-Equilibrium

, 2015
Non-equilibrium transport properties and energy conversion performance of a molecular photo-voltaic cell are analyzed using the Lindblad master equation within the open quantum systems approach.
Ajisaka, Shigeru, Dubi, Yonatan, Zunkovic, Bojan   +2 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Analysis and Experiment of the Laser Wireless Energy Transmission Efficiency Based on the Receiver of Powersphere

IEEE Access, 2021
Long-distance wireless energy transmission is realized by photoelectric conversion through lasers and photovoltaic cells. However, existing devices have low transmission power and low transmission efficiency.
Tiefeng He, Libin Zhang, Guoliang Zheng, Can Yang, Meng Wang, Guobing Pan   +5 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Superior Multimodal Luminescence in a Stable Single‐Host Nanomaterial with Large‐Scale Synthesis for High‐Level Anti‐Counterfeiting and Encryption

Advanced Science
Multimode luminescent materials exhibit tunable photon emissions under different excitation or stimuli channels, endowing them high encoding capacity and confidentiality for anti‐counterfeiting and encryption.
Bingyin Kong, Gencai Pan, Mengke Wang, Hongye Tang, Zhipeng Lv, Shiyu Sun, Yuxin Luo, Wenwu You, Wen Xu, Yanli Mao   +9 more
doaj   +1 more source

Ballistic Energy Conversion with 78% Efficiency and System Integration

Cell Reports Physical Science, 2020
Summary: Electrokinetic energy conversion by streaming current was proposed for energy harvesting for >50 years; however, it proved to be of limited use due to low efficiencies. The recent emergence of nanomaterials and related technologies significantly
Daxiang Xu, Libing Duan, Albert van den Berg, Jan C.T. Eijkel, Yanbo Xie   +4 more
doaj   +1 more source

Energy Conversion Efficiency of Pulsed Ultrasound

Energy Procedia, 2015
AbstractEnergy characterization of a pulsed ultrasonic system was carried out using a modified calorimetric method. Sonochemical efficiency (SE) for the oxidation of Fe+2 and the formation of H2O2 was determined for selected on:off ratios (R) and different power levels.
Al-Juboori, Raed A., Yusaf, Talal, Bowtell, Leslie   +2 more
openaire   +1 more source

Photoinduced Betaine Generation for Efficient Photothermal Energy Conversion [PDF]

Chemistry – A European Journal, 2020
AbstractThe conversion of solar energy to thermal, chemical, or electrical energy attracts great attention in chemistry and physics. There has been a considerable effort for the efficient extraction of photons throughout the entire solar spectrum. In this work light energy was efficiently harvested by using a long‐lived betaine photogenerated from an ...
Devika Sasikumar, Yuta Takano, Vasudevanpillai Biju   +2 more
openaire   +3 more sources