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Friedrich Franek - One of the best experts on this subject based on the ideXlab platform.

  • Enhanced tribological performances of nanocrystalline diamond film
    International Journal of Refractory Metals and Hard Materials, 2010
    Co-Authors: A Schneider, D. Steinmueller-nethl, Manish Roy, Friedrich Franek
    Abstract:

    Diamond films are well known for their outstanding properties such as high hardness, possible low coefficient of friction, high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NCD) films in advanced Automotive Equipment. Accordingly NCD-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated lubricants. These films exhibited negligible wear for the range of load tested. © 2009 Elsevier Ltd. All rights reserved.

  • Enhanced tribological performances of nanocrystalline diamond film
    International Journal of Refractory Metals & Hard Materials, 2009
    Co-Authors: A Schneider, D. Steinmueller-nethl, Friedrich Franek
    Abstract:

    Diamond films are well known for their outstanding properties such as high hardness, possible low coefficient of friction, high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NCD) films in advanced Automotive Equipment. Accordingly NCD-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated lubricants. These films exhibited negligible wear for the range of load tested.

A Schneider - One of the best experts on this subject based on the ideXlab platform.

  • Enhanced tribological performances of nanocrystalline diamond film
    International Journal of Refractory Metals and Hard Materials, 2010
    Co-Authors: A Schneider, D. Steinmueller-nethl, Manish Roy, Friedrich Franek
    Abstract:

    Diamond films are well known for their outstanding properties such as high hardness, possible low coefficient of friction, high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NCD) films in advanced Automotive Equipment. Accordingly NCD-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated lubricants. These films exhibited negligible wear for the range of load tested. © 2009 Elsevier Ltd. All rights reserved.

  • Enhanced tribological performances of nanocrystalline diamond film
    International Journal of Refractory Metals & Hard Materials, 2009
    Co-Authors: A Schneider, D. Steinmueller-nethl, Friedrich Franek
    Abstract:

    Diamond films are well known for their outstanding properties such as high hardness, possible low coefficient of friction, high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NCD) films in advanced Automotive Equipment. Accordingly NCD-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated lubricants. These films exhibited negligible wear for the range of load tested.

D. Steinmueller-nethl - One of the best experts on this subject based on the ideXlab platform.

  • Enhanced tribological performances of nanocrystalline diamond film
    International Journal of Refractory Metals and Hard Materials, 2010
    Co-Authors: A Schneider, D. Steinmueller-nethl, Manish Roy, Friedrich Franek
    Abstract:

    Diamond films are well known for their outstanding properties such as high hardness, possible low coefficient of friction, high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NCD) films in advanced Automotive Equipment. Accordingly NCD-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated lubricants. These films exhibited negligible wear for the range of load tested. © 2009 Elsevier Ltd. All rights reserved.

  • Enhanced tribological performances of nanocrystalline diamond film
    International Journal of Refractory Metals & Hard Materials, 2009
    Co-Authors: A Schneider, D. Steinmueller-nethl, Friedrich Franek
    Abstract:

    Diamond films are well known for their outstanding properties such as high hardness, possible low coefficient of friction, high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NCD) films in advanced Automotive Equipment. Accordingly NCD-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated lubricants. These films exhibited negligible wear for the range of load tested.

Manish Roy - One of the best experts on this subject based on the ideXlab platform.

  • Enhanced tribological performances of nanocrystalline diamond film
    International Journal of Refractory Metals and Hard Materials, 2010
    Co-Authors: A Schneider, D. Steinmueller-nethl, Manish Roy, Friedrich Franek
    Abstract:

    Diamond films are well known for their outstanding properties such as high hardness, possible low coefficient of friction, high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NCD) films in advanced Automotive Equipment. Accordingly NCD-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated lubricants. These films exhibited negligible wear for the range of load tested. © 2009 Elsevier Ltd. All rights reserved.

Anwar Mirza - One of the best experts on this subject based on the ideXlab platform.

  • Geographical Forwarding Methods in Vehicular Ad hoc Networks
    International Journal of Electrical and Computer Engineering (IJECE), 2015
    Co-Authors: Kashif Naseer Qureshi, Anwar Mirza, Abdul Hanan Abdullah, Waseem Anwar
    Abstract:

    Vehicular ad hoc networks are new and emerging technology and special class of mobile ad hoc networks that provide wireless communication between vehicles without any fixed infrastructure. Geographical routing has appeared as one of the most scalable and competent routing schemes for vehicular networks. A number of strategies have been proposed for forwarding the packets in geographical direction of the destination, where information of direct neighbors is gained through navigational services. Due to dynamically changing topologies and high mobility neighbor information become outdated. To address these common issues in network different types of forwarding strategies have been proposed. In this review paper, we concentrate on beaconless forwarding methods and their forwarding methods in detail. 1. INTRODUCTION The vehicular Ad hoc network is a self-organized, distributed and highly mobile network that facilitates ubiquitous connectivity between vehicles. The applications of vehicular Ad hoc networks are classifying into two basic types; safety and general data routing applications. The general routing applications provide one-to-one and one-to-all data broadcasting for different services such as for route planning, entertainment and for simple communication. In safety applications, the data is broadcasting in one-to-all manners and in predefined region such as for lane changing assistance, electronic brake light and road condition applications. These applications need priority and delivery in a short time especially for urgent situations like vehicle collision, accident detection, etc. [1]. The wireless communication between vehicles performed by means of DSRC (Dedicated Short-Range Communication) standard protocol at MAC (medium access control) layer and operates on 5.9 GHz. The vehicles are disseminating the packets periodically after every 300 ms with geographical location information via global positioning system (GPS). GPS is broadly available and consider as essential Automotive Equipment installed in vehicles. In network, the vehicle nodes select a suitable candidate for forwarding the packets and accomplish the multiple data deliveries. Because of VANET unique features, the network has been suffered from different issues related to routing, channel congestion and in data forwarding strategies, etc. Vehicular communication channels suffered from signal scattering and reflections, which mortify signal quality and strength. Also, the high mobility patterns are more dynamic with high fading conditions and cause of joint correlated shadow fading effects. In congested areas, the vehicles can temporary disconnected with near neighbors vehicles because of dynamic changing and frequent static and dense configuration. To handle these issues in vehicular ad hoc networks different type of routing protocols have been proposed such as topology based, cluster, geocast and geographical based. However, geographical

  • Geographical Forwarding Methods in Vehicular Ad hoc Networks Article in International Journal of Electrical and Computer Engineering · August 2015 CITATIONS 7 READS 2,189
    International Journal of Electrical and Computer Engineering (IJECE), 2015
    Co-Authors: Kashif Naseer Qureshi, Hanan Abdullah, Raja Waseem Anwar, Abdul Hanan Abdullah, Anwar Mirza
    Abstract:

    Vehicular ad hoc networks are new and emerging technology and special class of mobile ad hoc networks that provide wireless communication between vehicles without any fixed infrastructure. Geographical routing has appeared as one of the most scalable and competent routing schemes for vehicular networks. A number of strategies have been proposed for forwarding the packets in geographical direction of the destination, where information of direct neighbors is gained through navigational services. Due to dynamically changing topologies and high mobility neighbor information become outdated. To address these common issues in network different types of forwarding strategies have been proposed. In this review paper, we concentrate on beaconless forwarding methods and their forwarding methods in detail. 1. INTRODUCTION The vehicular Ad hoc network is a self-organized, distributed and highly mobile network that facilitates ubiquitous connectivity between vehicles. The applications of vehicular Ad hoc networks are classifying into two basic types; safety and general data routing applications. The general routing applications provide one-to-one and one-to-all data broadcasting for different services such as for route planning, entertainment and for simple communication. In safety applications, the data is broadcasting in one-to-all manners and in predefined region such as for lane changing assistance, electronic brake light and road condition applications. These applications need priority and delivery in a short time especially for urgent situations like vehicle collision, accident detection, etc. [1]. The wireless communication between vehicles performed by means of DSRC (Dedicated Short-Range Communication) standard protocol at MAC (medium access control) layer and operates on 5.9 GHz. The vehicles are disseminating the packets periodically after every 300 ms with geographical location information via global positioning system (GPS). GPS is broadly available and consider as essential Automotive Equipment installed in vehicles. In network, the vehicle nodes select a suitable candidate for forwarding the packets and accomplish the multiple data deliveries. Because of VANET unique features, the network has been suffered from different issues related to routing, channel congestion and in data forwarding strategies, etc. Vehicular communication channels suffered from signal scattering and reflections, which mortify signal quality and strength. Also, the high mobility patterns are more dynamic with high fading conditions and cause of joint correlated shadow fading effects. In congested areas, the vehicles can temporary disconnected with near neighbors vehicles because of dynamic changing and frequent static and dense configuration. To handle these issues in vehicular ad hoc networks different type of routing protocols have been proposed such as topology based, cluster, geocast and geographical based. However, geographical

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