Results 91 to 100 of about 4,184,128 (240)

Effect of 26 Years of Intensively Managed Carya cathayensis Stands on Soil Organic Carbon and Fertility

open access: yesThe Scientific World Journal, 2014
Chinese hickory (Carya cathayensis), a popular nut food tree species, is mainly distributed in southeastern China. A field study was carried out to investigate the effect of long-term intensive management on fertility of soils under a C.
Jiasen Wu   +5 more
doaj   +1 more source

Build it and they will come? The effects of a new infrastructure on cycling practices and experiences

open access: yesTransportation Research Interdisciplinary Perspectives
What are the effects of cycling infrastructure? This question is crucial as cities begin to give more space to cycling. In this paper, we propose to use the theoretical concept of affordance to consider not only what a cycle lane affords (or enables ...
Patrick Rérat, Aurélie Schmassmann
doaj   +1 more source

Health benefits of electrically-assisted cycling: a systematic review

open access: yesInternational Journal of Behavioral Nutrition and Physical Activity, 2018
BackgroundElectrically assisted bicycles (e-bikes) have been highlighted as a method of active travel that could overcome some of the commonly reported barriers to cycle commuting. The objective of this systematic review was to assess the health benefits
J. Bourne   +6 more
semanticscholar   +1 more source

Geochemical diversity of continental arc basaltic mushy reservoirs driven by reactive melt infiltration

open access: yesCommunications Earth & Environment
The reactive melt flow emerges as an important factor for diversification of basaltic magmatic reservoirs, but whether and how it influences continental arc basaltic mushes are enigmatic.
Jun-Yong Li   +4 more
doaj   +1 more source

Effects of different regimes of fertilization on soil organic matter under conventional tillage

open access: yesSpanish Journal of Agricultural Research, 2014
To explore the effects of different fertilization regimes on soil organic matter (SOM) sequestration in a winter-soybean/corn rotation, a long-term field experiment was conducted in Anhui, China, from 1982 to 2011. There were six treatments, as follows: (
Zhibin Guo   +5 more
doaj   +1 more source

Spectroscopy of a narrow-line laser cooling transition in atomic dysprosium

open access: yes, 2010
The laser cooling and trapping of ultracold neutral dysprosium has been recently demonstrated using the broad, open 421-nm cycling transition. Narrow-line magneto-optical trapping of Dy on longer wavelength transitions would enable the preparation of ...
Benjamin L. Lev   +8 more
core   +1 more source

Cycle-to-Cycle Variability

open access: yes, 2013
In this chapter we shall analyze how to simulate, within a quasi-dimensional combustion model, the cyclic variability experimentally observed in spark ignition engines. Explicit qualitative comparison with experimental results will be shown. Moreover, we report a nonlinear dynamics analysis of cycle-by-cycle variations in heat release for the simulated
Alejandro Medina   +5 more
openaire   +1 more source

The acute effect of whole-body vibration on cycling peak power output [PDF]

open access: yes, 2013
The aim of the present study was to determine if an acute bout of whole-body vibration (WBV) prior to sprint cycling would increase peak power output.
Hill, Colin
core   +1 more source

Increased Cycling Efficiency and Rate Capability of Copper-coated Silicon Anodes in Lithium-ion Batteries

open access: yes, 2011
Cycling efficiency and rate capability of porous copper-coated, amorphous silicon thin-film negative electrodes are compared to equivalent silicon thin-film electrodes in lithium-ion batteries. The presence of a copper layer coated on the active material
Kowolik, Kristin   +2 more
core   +1 more source

Magnetic anomalies in Nd6Co(1.67)Si3: Surprising first order transitions in the low-temperature isothermal magnetization

open access: yes, 2008
We present the results of magnetic measurements on Nd6Co(1.67)Si3, a compound recently reported to crystallize in a hexagonal structure (space group P6_3/m) and to undergo long range magnetic ordering below 84 K.
E. Gaudin   +5 more
core   +1 more source

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