Results 131 to 140 of about 3,805,880 (279)

Road density simplifies regional food webs

open access: yes
Abstract Roads stands as major threats to biodiversity, affecting the functioning of ecosystems and their provision of ecosystem services. Understanding how road-related impacts affect the dynamics of ecological interactions is essential to help manage human impacts on biodiversity, but such studies remain largely unexplored.
Frederico Mestre   +2 more
openaire   +1 more source

Weighted road density and allergic disease in children at high risk of developing asthma. [PDF]

open access: yesPLoS One, 2014
Hansell AL   +9 more
europepmc   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

open access: yesAdvanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe   +6 more
wiley   +1 more source

Road Accident Data, 2002

open access: yes, 2004
copyright UK Data Service and data collection copyright owner.Road accident statistics are collected from information about personal injury road accidents and their consequent casualties, to a common national standard.
Department for Transport, Road Accident Statistics Branch
core   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin   +12 more
wiley   +1 more source

Road Accident Data, 2013

open access: yes, 2014
copyright UK Data Service and data collection copyright owner.Road accident statistics are collected from information about personal injury road accidents and their consequent casualties, to a common national standard.
Department for Transport, Road Accident Statistics Branch
core  

Rotary 3D Printing With Integrated Electroplating

open access: yesAdvanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria   +5 more
wiley   +1 more source

Studies on the Forest Road System : Preliminary report on the road density

open access: yesStudies on the Forest Road System : Preliminary report on the road density
この報告は昭和39・40年度文部省科学研究費の補助を受けて行った総合研究の結果を取りまとめたものである。まず近代林業における林道網の意義を明らかにし,林道の種別を検討した上で,新たに「林道密度」を定義し,研究の焦点をここにしぼった。次に林道の適正密度に関する既往の研究を吟味し,その根底の思想を明らかにした。本研究の主たる対象とした適正密度(標準密度)はマチュウスの木材生産コスト最小の密度という思想と,機械化された集材作業における最適集材距離の思想とを組合せた思想を出発点としている。このために新たに客観的な地形区分の方法を案出し,地形区分に対応する標準作業仕組みを想定した上で,木材の保続生産を前提とするいわゆる循環団地を経営の対象とした場合の標準林道密度算定公式を誘導した ...
openaire   +1 more source

Impact of the Process Atmosphere During Hot Isostatic Pressing on the Near‐Surface Composition of an Additively Manufactured Austenitic High‐Interstitial Steel

open access: yesAdvanced Engineering Materials, EarlyView.
A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt   +4 more
wiley   +1 more source

Road Accident Data, 1988

open access: yes, 2006
copyright UK Data Service and data collection copyright owner.Road accident statistics are collected from information about personal injury road accidents and their consequent casualties, to a common national standard.
Department of Transport, Road Accident Statistics Branch
core  

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