Results 51 to 60 of about 1,924,997 (302)

Voltage regulator/amplifier is self-regulated [PDF]

, 1967
Signal modulated, self-regulating voltage regulator/amplifier controls the output b-plus voltage in modulated regulator systems. It uses self-oscillation with feedback to a control circuit with a discontinuous amplitude action feedback ...
Day, W. E., Phillips, D. E.
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Foliar spray of prohexadione-calcium improves the adaptability of mung bean to saline-alkali stress

Frontiers in Plant Science
IntroductionSaline-alkali soils are a major constraint to mung bean cultivation and extension, and prohexadione-calcium (Pro-Ca) can enhance plant tolerance to saline-alkali stress.MethodsIn order to explore the regulatory effect and mechanism of Pro-Ca ...
Xilong Liang, Xilong Liang, Yanlei Dong, Yanlei Dong, Qiuyu Jiang, Qiuyu Jiang, Xue Hou, Xue Hou, Yang Song, Yang Song, Fengzhou Zhao, Fengzhou Zhao, Yu Sun, Yu Sun, Haipeng Jiang, Haipeng Jiang, Shumei Fang, Shumei Fang, Qingyan Wang, Qingyan Wang   +19 more
doaj   +1 more source

Proposing an inflatable rubber dam on the Tidal Shatt Al-Arab River, Southern Iraq

Journal of the Mechanical Behavior of Materials, 2023
Increasing salinity in the Shatt Al-Arab River (SAR), south of Iraq, causes a serious issue with its water quality. In the current work, the proposed inflatable rubber dam was tested and verified for its feasibility and suitability on the SAR, Southern ...
AlKhafaji Hazim, Muttashar Wisam R., Al-Mosawi Walaa M.   +2 more
doaj   +1 more source

High impact pressure regulator Patent [PDF]

, 1969
High impact pressure regulator having minimum number of lightweight movable ...
Biles, J. E., Jr., Floyd, E. L., Topits, A., Jr.   +2 more
core   +1 more source

Pure spinor computation towards open string three-loop

, 2010
Using the recent results in the pure spinor formulation, we lay out a ground-work towards the full momentum space amplitudes of open superstrings at three-loop.
A Sen, E D’Hoker, E Witten, G Policastro, GW Gibbons, H Gomez, H Gomez, H Kawai, H Kawai, HB Nielsen, I. Y. Park, IY Park, IY Park, IY Park, IY Park, IY Park, J Hoogeveen, J Hoogeveen, J Polchinski, J Polchinski, JM Maldacena, N Berkovits, N Berkovits, N Berkovits, N Berkovits, N Berkovits, N Berkovits, N Berkovits, N Ishibashi, O Aharony, P Candelas, PA Grassi, PA Grassi, S Gerigk, SS Gubser, T Banks, V Alexandrov, W Siegel, Y Aisaka, Y Aisaka, Z-J Zheng   +40 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Estimation of annual occupational effective doses from external ionising radiation at medical institutions in Kenya

South African Journal of Radiology, 2011
This study details the distribution and trends of doses from occupational radiation exposure among radiation workers from participating medical institutions in Kenya, where monthly dose measurements were collected for a period of one year (January to ...
Geoffrey K Korir, Jeska S Wambani, Ian K. Korir   +2 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Relationships between Plant Architecture Traits and Cotton Yield within the Plant Height Range of 80–120 cm Desired for Mechanical Harvesting in the Yellow River Valley of China

Agronomy, 2019
Mechanical harvesting has become inevitable for cotton production in China due to the rising labor cost in the country. It usually requires a moderate plant height and compact plant architecture.
Wei Yan, Mingwei Du, Wenchao Zhao, Fang Li, Xiangru Wang, A. Egrinya Eneji, Fuqiang Yang, Jian Huang, Lu Meng, Haikun Qi, Guojuan Xue, Dongyong Xu, Xiaoli Tian, Zhaohu Li   +13 more
doaj   +1 more source