Results 31 to 40 of about 10,833,950 (310)

Synthesis of planetary mechanisms AI type with regard to engagement angles for coupled and uncoupled wheels

Авіаційно-космічна техніка та технологія, 2022
The subject matter of this article is the processes of synthesis of planetary gear mechanisms of AI type with uncoupled and coupled wheels to solve the problems of gear wheel design. The goal is to develop the synthesis of planetary mechanisms of AI type,
Tatiana Heresh, Sergey Kavetsky
doaj   +1 more source

Conversion of Aromatic Amino into Trifluoromethyl Groups through a Sandmeyer-Type Transformation

, 2014
A novel strategy for aromatic trifluoromethylation by converting amino into trifluoromethyl groups via a Sandmeyer-type reaction is reported. The transformation involves diazotization of the aromatic amines with tert-butyl nitrite and hydrochloric acid ...
Xu, Yan, Zhou, Yujing, Wang, Jianbo, Zhang, Yan, Wang, Xi   +4 more
core   +1 more source

Transcription factor 7-like 2 gene links increased in vivo insulin synthesis to type 2 diabetes

EBioMedicine, 2018
Transcription factor 7-like 2 (TCF7L2) is the main susceptibility gene for type 2 diabetes, primarily through impairing the insulin secretion by pancreatic β cells. However, the exact in vivo mechanisms remain poorly understood.
Sjaam Jainandunsing, H. Rita Koole, Joram N.I. van Miert, Trinet Rietveld, J.L. Darcos Wattimena, Eric J.G. Sijbrands, Felix W.M. de Rooij   +6 more
doaj   +1 more source

Critical Synthesis Package: Learning Style Type Indicator

MedEdPORTAL, 2014
This Critical Synthesis Package contains: (1) a Critical Analysis of the psychometric properties and the application to health science education of the Learning Style Type Indicator (LSTI), and (2) a copy of the LSTI instrument developed by John Pelley ...
Wanda Reygaert
doaj   +1 more source

The regulation of type I interferon production by paramyxoviruses [PDF]

, 2009
Research supported by The Wellcome Trust (087751/A/08/Z)Experimentally, paramyxoviruses are conventionally considered good inducers of type I interferons (IFN-alpha/beta), and have been used as agents in the commercial production of human IFN-alpha ...
Goodbourn, S, Richard E. Randall, Stephen Goodbourn, Randall, Richard Edward   +3 more
core   +1 more source

A General Procedure for Basic Kinematic Chain Formation and Topology Selection for Planar Mechanisms

Designs
In a complete kinematic synthesis process, a designer must select a planar linkage topology that is well suited to their problem situation. This involves weighing a set of competing priorities. For example, is it better to choose a simple topology like a
Arthur Erdman, John Titus, Mahmud Suhaimi Ibrahim, Sean Mather   +3 more
doaj   +1 more source

Nickel/iodine-catalyzed synthesis of 2-arylimidazo[1,2-a]pyridines through Ortoleva-King type protocol

Results in Chemistry, 2023
A novel Ni-I2 catalytic system was introduced for the synthesis of 2-arylimidazo[1,2-a]pyridines from readily available arylmethyl ketones and 2-aminopyridines as the starting materials.
Rose Mary Philip, Thaipparambil Aneeja, Gopinathan Anilkumar   +2 more
doaj   +1 more source

Identification of a novel type of spacer element required for imprinting in fission yeast [PDF]

, 2011
Asymmetrical segregation of differentiated sister chromatids is thought to be important for cellular differentiation in higher eukaryotes. Similarly, in fission yeast, cellular differentiation involves the asymmetrical segregation of a chromosomal ...
Suha Sayrac, Sonya Vengrova, Dalgaard Jacob Z., Godfrey Emma L., Godfrey, Emma L., Vengrova, Sonya, Jacob Z. Dalgaard, Sayrac, Suha, Emma L Godfrey, Emma L. Godfrey, Dalgaard, Jacob Z., Jacob Z Dalgaard, Sayrac Suha, Vengrova Sonya   +13 more
core   +2 more sources

Parallel–Serial Robotic Manipulators: A Review of Architectures, Applications, and Methods of Design and Analysis

Machines
Parallel–serial (hybrid) manipulators represent robotic systems composed of kinematic chains with parallel and serial structures. These manipulators combine the benefits of both parallel and serial mechanisms, such as increased stiffness, high ...
Anton Antonov
doaj   +1 more source

Type synthesis to design variable camber mechanisms

Advances in Mechanical Engineering, 2016
This article proposes multiple hinges’ type spectrum that provides an effective description of the multiple hinges of planar kinematic chains. The relationships between characteristic invariants are established and applied into type synthesis methods.
Gang Li, Zhihuai Miao, Bing Li, Ying Hu
doaj   +1 more source