Results 171 to 180 of about 3,313 (297)

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu   +6 more
wiley   +1 more source

Why Does cargo spend weeks in African ports ? the case of Douala, Cameroon [PDF]

open access: yes
This paper investigates the main factors explaining long container dwell times in African Ports. Using original and extensive data on container imports in the Port of Douala, it seeks to provide a basic understanding of why containers stay on average ...
Cantens, Thomas, Refas, Salim
core  

Sistema SPD : Servei de pa a domicili

open access: yes, 2013
La propuesta de este trabajo es realizar un proyecto que produzca una solución de software para un hipotético negocio de panaderías de pan. Este proyecto incluye la recogida y documentación de requisitos así como el análisis, el diseño y la implementación de un prototipo funcional para un sistema capaz de recibir y gestionar pedidos de pan y productos ...
openaire   +1 more source

Differential sensitivity of midline development to mitosis during and after primitive streak extension

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Midline establishment is a fundamental process during early embryogenesis for Bilaterians. Midline morphogenesis in non‐amniotes can occur without mitosis, through Planar Cell Polarity (PCP) signaling. By contrast, amniotes utilize both cellular processes for developing the early midline landmark, the primitive streak (PS).
Zhiling Zhao, Rieko Asai, Takashi Mikawa
wiley   +1 more source

Single‐cell sequencing reveals potential novel insights into appendage‐patterning and joint‐development in a spider

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Jointed appendages represent one of the key innovations of arthropods, and thus understanding the development and evolution of these structures is important for the understanding of the evolutionary success of Arthropoda. In this paper, we analyze a cell cluster that was identified in a previous single‐cell sequencing (SCS ...
Brenda I. Medina‐Jiménez   +2 more
wiley   +1 more source

Le Dieu de Hegel [PDF]

open access: yes, 1986
Labarrière, Pierre-Jean
core   +1 more source

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