Results 11 to 20 of about 524,344 (247)

Study on promotion of lean combustion by oxygen enrichment using a rapid compression expansion machine

open access: yesNihon Kikai Gakkai ronbunshu, 2021
While lean combustion in SI engine is one of the promising methods to increase the thermal efficiency and reduce the pollutant emissions, it causes instability of ignition and combustion due to the low burning velocity.
Kazuki HARADA   +5 more
doaj   +1 more source

The evaluation of the effects of friction in rocking vibration

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In the structures whose bottoms is not fixed such as home appliances and furniture, the falls and the slip movements are caused by vibrations such as earthquakes.
Ryo MIDORIKAWA   +2 more
doaj   +1 more source

Pathological, bacteriological, and molecular characteristics of natural outbreaks of Johne's disease in goats of Fars Province, Iran

open access: yesInternational Journal of Mycobacteriology, 2016
Objective/Background: Johne's disease, also called paratuberculosis, is a very important chronic infectious disease of ruminants worldwide. The causative agent is an acid-fast bacterium, Mycobacterium avium paratuberculosis (MAP).
F Zarei Kordshouli   +2 more
doaj   +1 more source

Multiobjective stacking sequence optimization for unsymmetric laminated plates under several empirical constraints

open access: yesNihon Kikai Gakkai ronbunshu, 2021
This study proposes a multiobjective stacking sequence optimization method for an unsymmetric laminated plate using for a torsion-box structure of an aircraft wing.
Kentaro HASHIWAKI, Nozomu KOGISO
doaj   +1 more source

Venezia ’900: il secolo delle mostre

open access: yesLaboratoire Italien, 2014
For Venice, the 20th century was a century of exhibitions, since the “invention” of the Biennale in 1895. With the development of cultural tourism, art exhibitions have flourished.
Nico Stringa
doaj   +1 more source

Seven new narrowly endemic species of Gulella Pfeiffer, 1856 from eastern South Africa (Gastropoda, Streptaxidae) and status revision for another

open access: yesEuropean Journal of Taxonomy, 2023
Seven new species of very small Gulella Pfeiffer, 1856 are described from two regions in the interior of south-eastern South Africa within the Maputaland-Pondoland-Albany biodiversity hotspot.
Mary L. Cole, David G. Herbert
doaj   +1 more source

Bryozoan statoblasts from lake sediments in Madagascar, including two new species

open access: yesEuropean Journal of Taxonomy, 2023
Madagascar is a freshwater biodiversity hotspot, yet the current understanding of freshwater bryozoan diversity is limited. Using a dissecting microscope, bryozoan statoblasts were collected during macrofossil analysis of a sediment core, which was ...
Timothy S. Wood   +2 more
doaj   +1 more source

Factors of improving fatigue strength in resistance spot welded high-strength steel sheets with tempering treatment

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Fatigue strength of resistance spot welded high-strength steels does not improve with increasing base metal strength. Therefore, cold-working method and tempering treatment have been proposed as methods for improving fatigue strength.
Akira SATO   +5 more
doaj   +1 more source

DEN NYE HISTORIESKRIVNING I 900-TALLET

open access: yesKulturstudier, 2019
Med Liudprand af Cremonas værk Antapodosis blomstrede historieskrivningen op efter en 50-årig stilstandsperiode i det østfrankiske rige. Samtidig skete et skift i den foretrukne historiske genre.
Sigga Engsbro
doaj   +1 more source

Scale effect on mechanical properties of titanium aluminide alloy additively manufactured by electron beam melting

open access: yesNihon Kikai Gakkai ronbunshu, 2021
TiAl (titanium aluminide) has been applied to turbine blades in aerospace industry, because it is a promising lightweight material with high strengths at high temperatures. In recent years, the production method of TiAl by additive manufacturing has been
Kazuhiro GOKAN   +4 more
doaj   +1 more source

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