Results 51 to 60 of about 34,945,907 (346)

Design of Gear Transmission Contact Ratio Detection System

open access: yesJixie chuandong, 2020
The wear and deformation of gear profile will change the contact ratio,which will affect the continuity and bearing capacity of gear transmission.
Rongxian Wang   +4 more
doaj  

CROSS RATIO VARIETIES FOR ROOT SYSTEMS

open access: yesKyushu Journal of Mathematics, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Effect of Nco/oh Ratio and Mold System on Physical and Mechanical Properties of Rigid Polyurethane Foam Based on Palm Oil [PDF]

open access: yes, 2011
A new kind of rigid polyurethane foam (RPUF) was synthesized from palm oil based polyol. Hydroxy methoxy polyol was prepared from epoxidation and hydroxylation process, and called as hydroxyl methoxy glycerolmonostearate (HMGMS) polyol. Synthesis process
Haryono, A. (Agus)   +2 more
core  

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd   +3 more
wiley   +1 more source

A novel variable force ratio test system for force measurement

open access: yesAdvances in Mechanical Engineering, 2019
It is an important guarantee to precisely measure multi-dimensional force vector with variable directions. In this article, variable force ratio (force ratio is a concept of a ratio of maximum force over minimum force) test system based on piezoelectric ...
Jun Zhang   +4 more
doaj   +1 more source

Evaluation of a Variable Ratio Cardioplegia System

open access: yesThe Journal of ExtraCorporeal Technology, 1996
Gish Biomedical has designed a blood cardioplegia delivery system (MyoManagerTM) which is purported to provide rapid control of blood and crystalloid solution ratios for myocardial preservation. The present study was designed to evaluate the ability of this device to provide cardioplegia solutions of specific hematocrit and potassium ion concentrations
J J, Deptula   +4 more
openaire   +2 more sources

More Accurate Theory for Bose-Einstein Condensation Fraction

open access: yes, 2007
In the thermodynamic limit the ratio of system size to thermal de Broglie wavelength tends to infinity and the volume per particle of the system is constant. Our familiar Bose-Einstein statistics is absolutely valid in the thermodynamic limit. For finite
Abe   +33 more
core   +1 more source

Disc heating in NGC 2985 [PDF]

open access: yes, 2000
Various processes have been proposed to explain how galaxy discs acquire their thickness. A simple diagnostic for ascertaining this ``heating'' mechanism is provided by the ratio of the vertical to radial velocity dispersion components.
Gerssen, J.   +2 more
core   +3 more sources

Prognostic Impact of Treatment Modalities, Including Targeted Compartmental Radio‐Immunotherapy, in a Cohort of Neuroblastoma Patients With CNS Metastases at Relapse

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez   +13 more
wiley   +1 more source

The Labor/Land Ratio and India's Caste System [PDF]

open access: yesSSRN Electronic Journal, 2012
This paper proposes that India's caste system and involuntary labor were joint responses by a nonworking landowning class to a low labor/land ratio in which the rules of the caste system supported the institution of involuntary labor. The hypothesis is tested in two ways: longitudinally, with data from ancient religious texts, and cross-sectionally ...
openaire   +3 more sources

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