Results 131 to 140 of about 189,174 (279)
Concerted Cultivation in Canada: Class‐Based Approaches to Parenting
Canadian Review of Sociology/Revue canadienne de sociologie, EarlyView.ABSTRACT The literature on concerted cultivation describes how higher‐class parents reproduce their social class standing in their children by engaging in ‘cultivating’ parenting practices. I use Latent Class Analysis and multinomial logistic regression applied to survey data from Canada to inductively uncover distinct approaches to parenting and then ...
Gerry Veenstra
wiley +1 more source
Influence of Low‑Level Wind Shear on Flight Characteristics of Large Helicopters
Nanjing Hangkong Hangtian Daxue XuebaoTo analyze the influence of low-level wind shear on the flight characteristics of a large helicopter during takeoff， a wind shear model and a helicopter flight dynamics model coupled with wind interference are established.
YE Yi, CHEN Renliang, WEI Yuan
doaj +1 more source
Full-scale crash test of a CH-47C helicopter [PDF]
A full-scale crash test of a large troop/cargo carrying CH-47C helicopter was conducted at the Langley impact dynamics research facility. The crash test of this large helicopter was performed as part of a joint U.S.
Castle, C. B.
core +1 more source
Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
Design study of Self-Alining Bearingless Planetary (SABP) gear [PDF]
The feasibility of using the self alining, bearingless planetary (SABP) transmission in an uprated version of the OH-58 helicopter was evaluated, specific performance comparisons of this new transmission with contemporary helicopter transmission systems ...
Folenta, D. J.
core +1 more source
, 1978 A low-friction, axially extensible strut, automatically lockable in both tension and compression, for use as a secondary load path in helicopter main rotor force measurement systems is ...
Bonisch, F. H.
core +1 more source
Drones: Emergence of a transformative technology for island rodent eradications
Conservation Science and Practice, EarlyView.Drones have emerged as a potentially powerful tool to address an ongoing need for alternative rodent eradication solutions on remote islands. This potential has now been demonstrated in a diverse set of operations across the Pacific. In the coming decades, this novel toolset also offers the possibility to step beyond existing paradigms and imagine a ...
Donal Smith +3 more
wiley +1 more source
A computer program for the determination of the acoustic pressure signature of helicopter rotors due to blade thickness [PDF]
A computer program is presented for the determination of the thickness noise of helicopter rotors. The results were obtained in the form of an acoutic pressure time history.
Farassat, F., Mall, G. H.
core +1 more source
Wealth inequality and epidemics in the Republic of Venice (1400–1800)
The Economic History Review, EarlyView.Abstract This article analyses wealth inequality in the Republic of Venice during 1400–1800. The availability of a large database of homogeneous inequality measurements allows us to produce the most in‐depth study of the factors affecting inequality at the local level available thus far for any preindustrial society.
Guido Alfani +2 more
wiley +1 more source