Results 101 to 110 of about 711,778 (240)
Numerical simulation for the influence of delay time on the rock fragmentation
, 2013 With the application of electronic detonators and with short delay times, it may be possible to achieve improved fragmentation through stress wave superposition. This hypothesis was studied through a series of small scale laboratory tests.
Johansson, Daniel, +3 more
core
REPRODUCING OPERATIONAL LANDSCAPES: The Rock Mining for Indonesia's New Capital City
International Journal of Urban and Regional Research, EarlyView.Abstract Indonesia's new capital city is designed to become a green and sustainable city. In this article, we examine the (un)sustainability of the process through which the city is coming into being. Using the sociospatial theory of planetary urbanization, we trace the dialectical relationship between the new city and sites beyond it to show how ...
Bosman Batubara +4 more
wiley +1 more source
Damage Characteristics of Rock Mass Under Cutting Blasting in Sharp Inclined Narrow Vein Mines
Applied SciencesIn the drift mining of sharp, inclined, narrow veins, the efficacy of cutting blasting directly governs the efficiency of blasting operations. However, the mechanisms of rock mass damage and fracturing induced by cutting blasting in sharp inclined narrow
Shenggang Wu +5 more
doaj +1 more source
河南理工大学学报. 自然科学版ObjectivesTo analyze the stability of surrounding rock during tunnel blasting excavation in horizontally layered rock masses under initial in-situ stress.MethodsUsing LS-DYNA finite element software， numerical models were established under three ...
Yu Jianxin +3 more
doaj +1 more source
Uncovering Biogas Outcomes: Tales of Hubris, Hope, and Failure From Southern Malawi
Natural Resources Forum, EarlyView.ABSTRACT The purpose of this article is to speak directly to biogas failure. Over the past two decades, immense amounts of money have been spent by African governments, private individuals, and most conspicuously, international aid agencies and donors, on countless biogas projects in every country on the continent.
Marc Kalina +4 more
wiley +1 more source
The wider network of social relationships and desistance from crime
Criminology, EarlyView.Abstract Prior research has focused on marriage as a key relationship associated with crime cessation. Yet particularly within the contemporary context, relationships with parents, peers, and other family members may also foster or inhibit progress toward desistance.
Peggy C. Giordano +4 more
wiley +1 more source
Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris
Integrative Zoology, EarlyView.Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli +7 more
wiley +1 more source
Blasting Rock for the Rock Crusher
, 1936 Photograph of blasting out rock to be used in lime crusher to supply farmers with limestone fertilizer.
Slack, Jim
core
Transcriptomics Unveil Dsx1 as a Critical Regulator in Sexual Dimorphism of Crustaceans
Integrative Zoology, EarlyView.Sexually dimorphic traits are involved in reproductive competition and are shaped by sex‐biased gene expression. This study identifies Dsx1 as a key male‐biased gene in Morinoia aosen and demonstrates through RNA interference that its disruption feminizes male‐specific T3 leg structures.
Yan Tong +8 more
wiley +1 more source
Integrative Zoology, EarlyView.ABSTRACT Understanding how amphibians adapt to terrestrial and arid environments is important for elucidating vertebrate terrestrialization. In this study, we present the first chromosome‐level, high‐quality genome assembly of Strauchbufo raddei, constructed using PacBio HiFi long‐read sequencing and Hi‐C scaffolding. The assembled genome is 4.47 Gb in
Fanrui Chen +7 more
wiley +1 more source