Results 81 to 90 of about 7,493,826 (258)

Deep convection occurring above a stable planetary boundary layer [PDF]

open access: yes, 1984
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.Microfiche copy available in Archives and Science.Vita.Bibliography: leaves 211-215.by Bradley Roy Colman.Sc ...
Colman, Bradley Roy
core  

Planetary: Planetary science related tools

open access: yes, 2016
<p>All my planetary science related tools</p ...
Jelmer Oosthoek
core   +1 more source

Biomass DNA: An Emerging Building Block for Advanced Materials

open access: yesAdvanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

Modeling and Dynamics Analysis Belt Drive in Planetary Transmission System

open access: yesJixie chuandong, 2015
For the problem of planetary transmission system that the complex system structure in the course of using,high manufacture precision and limitations strong during long-distance power transmission process.According to the traditional characteristics of ...
Qi Xuemei
doaj  

Planetary Gearbox Vibration Signal Characteristics Analysis and Fault Diagnosis

open access: yesShock and Vibration, 2015
Planetary gearboxes are widely used in helicopters, wind turbines, mining machinery, and so forth. The structure and motion type of a planetary gearbox are more complex in comparison with a fixed-shaft one, which makes condition monitoring and fault ...
Qiang Miao, Qinghua Zhou
doaj   +1 more source

Over 95% Optical Reflectance From Structurally Modulated All‐Biopolymer Multilayers

open access: yesAdvanced Materials, EarlyView.
A new dense–porous design turns ordinary polysaccharides into highly reflective photonic multilayers. Alternating dense pectin and porous cellulose nanofiber layers create strong refractive‐index contrast without inorganic or synthetic polymers, enabling nearly perfect visible reflection, high near‐infrared reflection, broadband metallic‐like colors ...
Takaaki Kasuga   +9 more
wiley   +1 more source

Synthesis of Ti2B2Clx MBenes in Molten Salts From Theoretical and Experimental Perspectives

open access: yesAdvanced Materials, EarlyView.
By integrating a theoretical framework with experiments, Ti2InB2 was selectively etched with ZnCl2 to produce a multilayer (ml) Ti2B2Clx MBene. The In atoms are completely removed, with simultaneous incorporation of chlorine surface terminations. in situ x‐ray diffraction indicates a direct biphasic transformation from Ti2InB2 to ml‐MBene, with no ...
Rodrigo M. Ronchi   +15 more
wiley   +1 more source

Design and Motion Analysis of a Planetary Gear Type Power Coupling Device Used in HEV

open access: yesJixie chuandong, 2017
Based on the power system parameters of a certain type Hybrid Electric Vehicle( HEV),a planetary gear type power coupling device is designed for power transmission structure which can meet the requirement of power.
Gao Aiyun, Tian Songwen
doaj  

Improving Porosity Calculation Methods and Proposing a New Model Universally Applicable to Large- and Medium-sized Planetary Objects

open access: yesThe Astrophysical Journal
Our work was aimed at the improvement of two main already existing methods of porosity calculation on a planetary scale in order to expand these methods to be applicable to exoplanetary interiors. In addition to implementing some improvements in the used
Imre Kisvárdai, Ákos Kereszturi
doaj   +1 more source

Parametric Design and Motion Simulation Analysis of Non-circular Gear Planetary Gear Train

open access: yesJixie chuandong, 2021
Non-circular gear planetary gear train is the core component of non-circular gear hydraulic motor, and its pitch curve design is the key to the overall structure design.
Yongping Liu   +3 more
doaj  

Home - About - Disclaimer - Privacy