Results 181 to 190 of about 1,549,833 (399)

Docking system of androgynous and peripheral type [PDF]

open access: yes, 1972
Soviet and American space engineers have proceeded with creating compatible means for closing and docking spacecraft. It was decided to make a new advanced docking system of a peripheral and androgynous type.
Syromyatnikov, V. S.
core   +1 more source

Base‐Mediated Scalable Synthesis of Polybenzothiazoles: Fused‐Heterocycle‐Engineered Recovery of Precious Metals

open access: yesAdvanced Science, EarlyView.
Polybenzothiazoles with scalability and tunability are synthesized from base‐mediated multicomponent polymerization of sulfur, aromatic diamines, and dialdehydes, addressing previous synthetic limitations. The fused heterocyclic S‐ and N‐containing polymers reveal their capability to recover precious metals Au, Pd, and Pt from complex waste streams ...
Hongjie Zhou   +7 more
wiley   +1 more source

Development and analysis hydrosystem construction two-cascade hydravlic booster of a twistinq moment with two pumps [PDF]

open access: yes, 2012
Розроблена нова конструкція двохкаскадного гідропідсилювача крутного момента з двома насосами і великим коефіцієнтом підсилення. Така конструкція дозволяє забезпечувати привод об’єкта як у слідкуючому режимі роботи, так і швидкі переміщення (швидкій ...
Lisenko, V.   +3 more
core  

Anti‐Icing Organogel Enables Quasi‐Homogeneous Supercooling Preservation of Mouse Hearts

open access: yesAdvanced Science, EarlyView.
An organogel interface with a large energy barrier for ice nucleation is proposed to enable a quasi‐homogeneous supercooling preservation for organs. This method does not rely on cryoprotectant agents or machine perfusion and can double the ex vivo storage time of mouse hearts.
Junhao Li   +8 more
wiley   +1 more source

Design of a wrist and operator interface for an agricultural manipulator : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Engineering and Automation at Massey University [PDF]

open access: yes, 2000
Roadside mowing and tree pruning has always been a job that most people would consider as unpleasant. This project is concerned with the development of a system to make these tasks simpler, safer and more pleasant for the operator.
Noaro, Adrian Peter Charles
core  

Directed Self‐Assembly of Magnetic Bioceramic Deep Inside Dentinal Tubules May Alleviate Dental Hypersensitivity

open access: yesAdvanced Science, EarlyView.
Magnetically guided bioceramic nanoparticles (“CalBots”) achieve deep dentinal tubule occlusion via directed self‐assembly under externally applied magnetic field. Various visualization techniques and a novel mouse behavioral assay indicate that CalBot‐induced plugs may reduce dentinal sensitivity, offering a promising strategy for future dentin ...
Shanmukh Peddi   +6 more
wiley   +1 more source

A conceptual study of the potential for automotive-derived and free-piston Stirling engines in 30- to 400-kilowatt stationary power applications [PDF]

open access: yes
The technical feasibility of applying automotive-derived kinematic and free-piston Stirling engine concepts for stationary applications was explored. Automotive-derived engines offer cost advantages by providing a mature and developd engine technology ...
Chen, H. S., Dineen, J., Vatsky, A.
core   +1 more source

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