Results 111 to 120 of about 2,917 (259)

潜油螺杆泵用进动式减速机的设计与试验

Jixie chuandong, 2005
The 2K-H nutation mechanism of gear roller mesh is applied to the reducer which drive a petroleum exploitation screw pump under ground. A new nutating reducer was designed and manufactured, and through the test, satisfied result was acquired.
田方, 陶柯, 姜芳
doaj  

Protective Effect of Phytic Acid in Cardiovascular Diseases: A Systematic Review

ChemFoodChem, EarlyView.
ABSTRACT Cardiovascular diseases (CVDs) are a cluster of ailments that impact the heart and blood vessels and are a primary public health problem of mortality on a global scale. Phytic acid, a dietary constituent frequently present in foods like seeds, has been linked to many pharmacological attributes, including anti‐cancer, antioxidant, anti ...
Marta M. S. de Freitas Almeida, Éverton A. Pereira, Patricia Severino, Cristina Blanco‐Llamero, Sandra L. Santos, Luciana N. Andrade, Ricardo G. Amaral, Eliana B. Souto   +7 more
wiley   +1 more source

Analysis on the Influence Factors of Bulk Temperature of the Meshing Gear of a Nutation Drive with a Double Circular-arc Spiral Bevel Gear

Jixie chuandong
The meshing temperature affects the fatigue, vibration, noise and other behaviors in the nutation transmission process of the double circular-arc spiral bevel gear, which cannot be ignored in the life prediction and mechanical response of the double ...
Chen Ying, Yao Ligang, Wang Xingsheng, Zhang Dawei, Wang Xueying   +4 more
doaj  

Heterovalent, Homometallic Rings: Synthesis, Optical, and EPR Studies of {TiIV7TiIII} Complexes

Chemistry – A European Journal, EarlyView.
A new class of heterovalent, homometallic complexes is reported, based on cyclic {TiIV7TiIII} cores with oxide and carboxylate bridges between nearest neighbors. The clusters show Class II mixed‐valent behavior at room temperature, but are valence localized at low temperature.
Selena J. Lockyer, Lubomir Loci, Yingzhao Ma, Matthew P. Stevens, Grigore A. Timco, George F. S. Whitehead, Richard E. P. Winpenny, Alice M. Bowen, Eric J. L. McInnes   +8 more
wiley   +1 more source

Perspectives in biomedicine: Superfoods and antioxidant power classification

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The market value of natural food antioxidants will double to 8 billion USD by 2033, driven by a global consumer demand for ‘clean label’ products and proactive wellness solutions. However, the industrial application and health labelling (commercial brands) of these compounds remain severely constrained by inconsistent analytical methods.
Domenico Fuoco, Gregory S. Patience
wiley   +1 more source

Nutations in plants

, 2007
This chapter aims to explore and describe the physiological aspects of oscillating growth patterns in rapidly elongating plant organs, such as roots, hypocotyls, shoots, branches and flower stalks. After a brief description of the phenomena, the theories and models proposed to explain circumnutation are reported, focusing largely on the internal ...
MUGNAI, SERGIO, AZZARELLO, ELISA, MASI, ELISA, C. PANDOLFI, MANCUSO, STEFANO   +4 more
openaire   +1 more source

Compact Manifolds With Unbounded Nilpotent Fundamental Groups and Positive Ricci Curvature

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT It follows from the work of Kapovitch and Wilking that a closed manifold with nonnegative Ricci curvature has a uniformly almost nilpotent fundamental group. Leftover questions and conjectures, have asked if in this context the fundamental group is actually uniformly almost abelian. The main goal of this work is to construct examples (Mk9,gk)$(
Elia Bruè, Aaron Naber, Daniele Semola
wiley   +1 more source

Efficiency and Perceptions in Public CSR: An Integrated Efficiency–Perception Analysis of Spanish Defence Delegations

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Public organisations often experience a discrepancy between improvements in technical efficiency and stakeholders' perceptions of integrity and performance. This study analyses the mechanisms that may underlie this efficiency–perception discrepancy in Spanish Defence Delegations during 2020–2023.
José Solana‐Ibáñez, Manuel Caravaca‐Garratón   +1 more
wiley   +1 more source

Challenges and Pitfalls to Diagnosing NUTM1‐Rearranged Neoplasia of the Pancreas by Cytology and Ancillary Studies

Diagnostic Cytopathology, EarlyView.
ABSTRACT Fine‐needle aspiration cytology specimens are frequently utilized for ancillary studies to identify diagnostic and prognostic information. This case highlights diagnostic pitfalls and challenges in diagnosing NUTM1‐rearranged neoplasia on pancreatic cytology.
Terrance J. Lynn
wiley   +1 more source

Fhod3 in zebrafish supports myofibril stability during growth of embryonic skeletal muscle

Developmental Dynamics, EarlyView.
Abstract Background Actin filament organization in cardiomyocytes critically depends on the formin Fhod3, but a role for Fhod3 in skeletal muscle development has not yet been described. Results We demonstrate here that in zebrafish mutated for one of two fhod3 paralog genes, fhod3a, skeletal muscle of the trunk appears normal through 2 days post ...
Aubrie Russell, Tracy Eng, Jeffrey D. Amack, David Pruyne   +3 more
wiley   +1 more source