Results 1 to 10 of about 29,876 (167)
The effects of gravity on rock fractures caused by PDC bits [PDF]
Scientific ReportsTo understand the crack propagation and chip formation mechanism caused by a PDC bit for various gravity values, a numerical study using particle flow code in 2 dimensions (PFC 2D) is performed.
Qiaolong Zhang +5 more
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Agronomy, 2022 Rhizome cutting is prevalent in propagation for Hemerocallis citrina Baroni. This study aimed to reveal the influence of rhizome weight on plantlet growth, and evaluate a new cutting protocol.
Yue Xie, Tong Chen, Huazhong Ren
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HortTechnology, 2022 Clematis (Clematis ×hybrida) has not traditionally fit into the standard production system for vegetatively propagated herbaceous perennials because of the lack of commercially available unrooted cuttings and relatively poor rooting success.
Uttara C. Samarakoon, James E. Faust
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Cutting Behavior of Cortical Bone in Different Bone Osteon Cutting Angles and Depths of Cut
Chinese Journal of Mechanical Engineering, 2022 Cortical bone is semi-brittle and anisotropic, that brings a challenge to suppress vibration and avoid undesired fracture in precise cutting process in surgeries.
Yuanqiang Luo +5 more
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EFFECT OF SOME PROPOGATION METHODS IN GROWTH OF [PDF]
Mesopotamia Journal of Agriculture, 2007 This study was carried out at Ninevah plantation Nursery in Mosul city, during the period from mid January to the end of October (1999) to investigate the effect of four collection times, and four cutting lengths, Using tow planting methods (Vertical and
Muthafar O. Abdullah
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Experimental and Theoretical Fatigue Crack Propagation in Vitro of the Bovine and Human cortical Bone in Linear Elastic and Elastic-Plastic Fracture Mechanics [PDF]
Engineering and Technology Journal, 2017 This study involved studying fatigue crack propagation in elastic-plastic and linear elastic fracture mechanics LEFM fracture mechanics EPFM for each bovine and cadaveric human cortical bone.
B.O. Bdaiwi, A.F. Abdul-kareem
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Agronomy, 2020 The beneficial effects that silicon (Si) has on plant growth as well as resistance to biotic and abiotic stresses have been well documented for many crops in recent years.
Yali Li +3 more
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Scientific Reports, 2023 Hybrid larch is the main timber and afforestation tree species in Northeast China. To solve the problem of rooting difficulties in larch cutting propagation, enzyme activity determination and transcriptome sequencing were carried out on the rooting ...
Ruofan Qin +5 more
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Research on the Development Mechanism of Three Kinds of Cracks in Rock Cutting
Applied Sciences, 2023 In order to study the mechanism of crack propagation in rock cutting, experiments and discrete element numerical simulation of rock cutting at different depths were adopted in this paper. The rock fragmentation can be divided into mini-size fragmentation
Juntao Ma +4 more
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VEGETATIVE PROPAGATION OF HYMENAEA COURBARIL L. AND APULEIA LEIOCARPA (VOGEL) J. F. MACBR. BY MINI-CUTTING [PDF]
Revista Árvore, 2020 The objective of this work was to evaluate the vegetative propagation of Hymenaea courbaril (jatobá) and Apuleia leiocarpa (garapa) using the mini-cutting technique with the use of indolebutyric acid (IBA) growth regulator in different types of mini ...
Juliana Muller Freire +4 more
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