Results 41 to 50 of about 41,416 (285)

Fluid lubricant system Patent [PDF]

open access: yes, 1968
Lubrication for bearings by capillary action from oil reservoir of porous ...
Belanger, R. J., Heindl, J. C.
core   +1 more source

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

open access: yesAdvanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen   +13 more
wiley   +1 more source

摩托车用齿形链条的主要参数和性能指标及其检验方法

open access: yesJixie chuandong, 2012
The external gear,internal-external gear composite inverted tooth chain and motorcycle external gear and internal-external gear inverted tooth chain main parameters,technical requirements and test method for motorcycle engine timing,oil pump and so on ...
付振明, 金玉谟
doaj  

An External Gear Pump with Axial Stepped-gear Structure and Without Additional Trapped-oil Relief-grooves

open access: yesJixie chuandong, 2023
In order to solve the problems in the existing gear pump with another trapped oil buffer groove, an external gear pump with axial stepped-gear structure for realizing two different contact ratios is proposed; the trapped-oil load flow from the gear ...
Wang Hao, Song Anran, Li Yulong
doaj  

Cooling system for high speed aircraft [PDF]

open access: yes, 1981
The system eliminates the necessity of shielding an aircraft airframe constructed of material such as aluminum. Cooling is accomplished by passing a coolant through the aircraft airframe, the coolant acting as a carrier to remove heat from the airframe ...
Lawing, P. L., Pagel, L. L.
core   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

open access: yesAdvanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies   +14 more
wiley   +1 more source

外啮合渐开线齿轮泵输出特性研究

open access: yesJixie chuandong, 2003
Based on geometrical way, the flow formula of the external gear pump is created, the relation of the coefficient of engagement and trapping volume is analyzed.
李秀明, 王长路, 梁光勤
doaj  

Development of a Variable Roller Pump and Evaluation of its Power Saving Potential as a Charge Pump in Hydrostatic Drivetrains [PDF]

open access: yes, 2015
Predložená doktorandská dizertačná práca (ďalej len práca) sa zaoberá rozsiahlou analýzou valčekového hydrogenerátora s premenlivým geometrickým objemom a predikciou výkonových úspor dosiahnutých aplikáciou navrhnutého valčekového hydrogenerátora s ...
Zavadinka, Peter
core  

Spinning of hollow fiber ultrafiltration membranes from a polymer blend [PDF]

open access: yes, 1995
In this study the dry-wet spinning technique is used for the preparation of hollow fiber membranes. In the polymer solution a blend of two polymers, poly(ether sulfone) and poly(vinyl pyrrolidone), is used.
Boomgaard, Th. van den   +3 more
core   +2 more sources

Scalable Manufacturing of Roll‐to‐Roll Slot‐Die Coated Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Roll‐to‐roll (R2R) slot‐die coating is emerging as a scalable pathway for perovskite solar cells. This mini‐review summarizes advances in ink design, drying control, and electrode integration that enable high‐efficiency flexible devices and modules. Challenges in throughput, stability, and sustainable processing are outlined, guiding the translation of
Farshad Jafarzadeh   +5 more
wiley   +1 more source

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