Nanostructured Coatings for Tooling Applications

2015 ◽  
Vol 825-826 ◽  
pp. 597-604 ◽  
Author(s):  
Arno Köpf ◽  
Jozef Keckes ◽  
Juraj Todt ◽  
Reinhard Pitonak ◽  
Ronald Weissenbacher
Keyword(s):  
Process Parameters ◽  
State Of The Art ◽  
Nanostructured Coatings ◽  
The State ◽  
Recent Developments

In this contribution the authors will present a short summit of the state of the art in the field of nanostructured coatings and will then emphasise on the most recent developments concerning the possible changes in the coating architecture of CVD AlTiN, which can be achieved by changing some of the process parameters

scholarly journals Recent Developments in Coatings, Gratings, and Reflective Components

1984 ◽  
Vol 79 ◽  
pp. 607-616
Author(s):  
R. R. Shannon
Keyword(s):  
State Of The Art ◽  
New Technology ◽  
The State ◽  
Current Technology ◽  
Large Size ◽  
Incoming Radiation ◽  
Recent Developments ◽  
Electronic Sensors ◽  
Large Primary ◽  
Telescope System

The requirements on gratings and coatings for astronomical use differ from the general industrial requirements primarily in the scale of the components to be fabricated. Telescopes have large primary mirrors which require large coating plants to handle the components. Dispersive elements are driven by the requirement to be efficient in the presence of large working apertures, and usually optimize to large size in order to efficiently use the incoming radiation. Beyond this, there is a “new” technology of direct electronic sensors that places specific limits upon the image scale that can be used at the output of a telescope system, whether direct imagery or spectrally divided imagery is to be examined. This paper will examine the state of the art in these areas and suggest some actions and decisions that will be required in order to apply current technology to the predicted range of large new telescopes.

scholarly journals Bibliographic review on the state of the art of strontium and zinc based regenerative therapies. Recent developments and clinical applications

2019 ◽  
Vol 7 (12) ◽  
pp. 1974-1985 ◽  
Author(s):  
Mirta Jiménez ◽  
Cristina Abradelo ◽  
Julio San Román ◽  
Luis Rojo
Keyword(s):  
Musculoskeletal Disorders ◽  
State Of The Art ◽  
Clinical Applications ◽  
The State ◽  
Tissue Formation ◽  
Promoting Effect ◽  
Recent Developments ◽  
Regenerative Therapies

This review brings up to date the state of the art of strontium and zinc based regenerative therapies, both having a promoting effect on tissue formation and a role inhibiting resorption in musculoskeletal disorders.

scholarly journals Melt Electrospinning Designs for Nanofiber Fabrication for Different Applications

2019 ◽  
Vol 20 (10) ◽  
pp. 2455 ◽  
Author(s):  
Yasseen Ibrahim ◽  
Essraa Hussein ◽  
Moustafa Zagho ◽  
Ghada Abdo ◽  
Ahmed Elzatahry
Keyword(s):  
Structural Properties ◽  
Process Parameters ◽  
State Of The Art ◽  
Electrospinning Process ◽  
The State ◽  
Electrospinning Technique ◽  
Melt Electrospinning ◽  
Physicochemical And Structural Properties

Nanofibers have been attracting growing attention owing to their outstanding physicochemical and structural properties as well as diverse and intriguing applications. Electrospinning has been known as a simple, flexible, and multipurpose technique for the fabrication of submicro scale fibers. Throughout the last two decades, numerous investigations have focused on the employment of electrospinning techniques to improve the characteristics of fabricated fibers. This review highlights the state of the art of melt electrospinning and clarifies the major categories based on multitemperature control, gas assist, laser melt, coaxial, and needleless designs. In addition, we represent the effect of melt electrospinning process parameters on the properties of produced fibers. Finally, this review summarizes the challenges and obstacles connected to the melt electrospinning technique.

Review of recent trends in gas sensing technologies and their miniaturization potential

Sensor Review ◽  
2014 ◽  
Vol 34 (1) ◽  
pp. 24-35 ◽  
Author(s):  
Sari Lakkis ◽  
Rafic Younes ◽  
Yasser Alayli ◽  
Mohamad Sawan
Keyword(s):  
Design Methodology ◽  
Gas Sensing ◽  
State Of The Art ◽  
The State ◽  
Content Type ◽  
Novel Technologies ◽  
Advantages And Disadvantages ◽  
Different Types ◽  
Recent Developments ◽  
Recent Trends

Purpose – This paper aims to give an overview about the state of the art and novel technologies used in gas sensing. It also discusses the miniaturization potential of some of these technologies in a comparative way. Design/methodology/approach – In this article, the authors state the most of the methods used in gas sensing discuss their advantages and disadvantages and at last the authors discuss the ability of their miniaturization comparing between them in terms of their sensing parameters like sensitivity, selectivity and cost. Findings – In this article, the authors will try to cover most of the important methods used in gas sensing and their recent developments. The authors will also discuss their miniaturization potential trying to find the best candidate among the different types for the aim of miniaturization. Originality/value – In this article, the authors will review most of the methods used in gas sensing and discuss their miniaturization potential delimiting the research to a certain type of technology or application.

Catalytic hydroprocessing of microalgae-derived biofuels: a review

2016 ◽  
Vol 18 (13) ◽  
pp. 3684-3699 ◽  
Author(s):  
Changyan Yang ◽  
Rui Li ◽  
Chang Cui ◽  
Shengpeng Liu ◽  
Qi Qiu ◽  
...  
Keyword(s):  
Process Parameters ◽  
State Of The Art ◽  
The State ◽  
Catalyst Development

This article reviews the state-of-the-art in the hydroprocessing of microalgae-based biofuels, catalyst development, and the effect of process parameters on hydrotreated algal fuels.

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