Results 11 to 20 of about 2,003,430 (344)

THE TEMPERATURE COEFFICIENT OF PHOTOSYNTHESIS [PDF]

Journal of General Physiology, 1919
The temperature coefficient of photosynthesis in Ulva (between 17° and 27°C.) is 1.81. This may be explained by assuming that the process involves a light reaction with a low coefficient followed by an ordinary reaction with a high coefficient.
W J, Osterhout, A R, Haas
openaire   +2 more sources

Thin Al1−xGaxAs0.56Sb0.44 diodes with extremely weak temperature dependence of avalanche breakdown [PDF]

Royal Society Open Science, 2017
When using avalanche photodiodes (APDs) in applications, temperature dependence of avalanche breakdown voltage is one of the performance parameters to be considered. Hence, novel materials developed for APDs require dedicated experimental studies.
Xinxin Zhou, Chee Hing Tan, Shiyong Zhang, Manuel Moreno, Shiyu Xie, Salman Abdullah, Jo Shien Ng   +6 more
doaj   +1 more source

Mechanisms of increasing predation by planktivorous fish with rising temperature may explain the temperature–body size relationships in zooplankton

Frontiers in Ecology and Evolution, 2023
The temperature–size rule (TSR) has been consistently observed in numerous studies, showing that ectotherms reared at higher temperatures experience accelerated growth during the juvenile stage and ultimately reach smaller sizes and younger ages at ...
Piotr Maszczyk, Wojciech Wilczynski, Wojciech Wilczynski, Z. Maciej Gliwicz, Konrad Leniowski, Marcin Lukasz Zebrowski, Jae-Seong Lee, Ewa Babkiewicz, Ewa Babkiewicz   +8 more
doaj   +1 more source

Enlightening the temperature coefficient of triple mesoscopic CH3NH3PbI3−x Cl x /NiO and double mesoscopic CsFAMAPbI3−x Br x /CuSCN carbon perovskite solar cells

JPhys Energy, 2023
Temperature is one of the most crucial outdoor variables that influence the photovoltaic performance and stability of carbon perovskite solar cells (CPSCs), although not many reports are there on temperature-dependent CPSCs performance based on various ...
Shubhranshu Bhandari, Tapas Kumar Mallick, Senthilarasu Sundaram   +2 more
doaj   +1 more source

Investigation of the Temperature Sensitivity of 20-Years Old Field-Aged Photovoltaic Panels Affected by Potential Induced Degradation

Energies, 2022
One effect of moisture ingress on solar panels is potential induced degradation (PID). Solar panels affected by PID experience large leakage currents between the solar cells and the module’s frame, which leads to substantial power degradation.
Oscar Kwame Segbefia, Tor Oskar Sætre
doaj   +1 more source

General dissipation coefficient in low-temperature warm inflation [PDF]

, 2013
In generic particle physics models, the inflaton field is coupled to other bosonic and fermionic fields that acquire large masses during inflation and may decay into light degrees of freedom. This leads to dissipative effects that modify the inflationary
Arjun Berera, B. Chen, E.W. Kolb, I.G. Moss, I.G. Moss, I.G. Moss, I.G. Moss, J.M. Maldacena, João G Rosa, L. Visinelli, M. Bastero-Gil, M. Bastero-Gil, M.B. Pinto, M.E. Peskin, Mar Bastero-Gil, Rudnei O Ramos, Y. Zhang   +16 more
core   +3 more sources

Stress Effects on Temperature-Dependent In-Plane Raman Modes of Supported Monolayer Graphene Induced by Thermal Annealing

Nanomaterials, 2021
The coupling strength between two-dimensional (2D) materials and substrate plays a vital role on thermal transport properties of 2D materials. Here we systematically investigate the influence of vacuum thermal annealing on the temperature-dependence of ...
Yuehua Wei, Zhenhua Wei, Xiaoming Zheng, Jinxin Liu, Yangbo Chen, Yue Su, Wei Luo, Gang Peng, Han Huang, Weiwei Cai, Chuyun Deng, Xueao Zhang, Shiqiao Qin   +12 more
doaj   +1 more source

Comparative study of electrical resistance of disc-shaped compacts fabricated using calcined clams shell, Periwinkle shell and Oyster shell nanopowder [PDF]

Kragujevac Journal of Science, 2022
In this investigation, Clam, Periwinkle and Oyster shells were separately treated, calcined and ball-milled into nano powder. Each nano powder material was fabricated into disc of various lengths in three replicates.
Olusakin Adeniran Adebayo, Okon Akankpo Akaninyene, Edet Etuk Sunday, Williams Robert Ubong, Ebuka Agbasi Okechukwu   +4 more
doaj   +1 more source

Reliability evaluation of MMC system considering working conditions

The Journal of Engineering, 2018
The reliability is a key issue of the high-voltage high-power modular multilevel converter (MMC) system due to the usage of fragile insulated gate bipolar transistor (IGBT) modules. In this study, it is proposed that the reliability of the MMC system can
Tao Zheng, Meng Huang, Lingyi Zhu, Xiaoming Zha   +3 more
doaj   +1 more source

Micromachined two dimensional resistor arrays for determination of gas parameters [PDF]

, 2003
A resistive sensor array is presented for two dimensional temperature distribution measurements in a micromachined flow channel. This allows simultaneous measurement of flow velocity and fluid parameters, like thermal conductivity, diffusion coefficient ...
Dijkstra, Marcel, Dijkstra, Mindert, Elwenspoek, Michael Curt, Krijnen, Gijsbertus J.M., Lammerink, Theodorus S.J., van Baar, J.J.J., Verwey, Willem B., Wiegerink, Remco J.   +7 more
core   +2 more sources