Results 11 to 20 of about 9,982 (198)

Selection of parameters for mud pumps used for HDD Systems [PDF]

open access: yesActa Montanistica Slovaca, 2006
Design solutions of rigs used for HDD are presented in the paper. HDD devices are classified on the basis of presented criteria, and then a division of rigs was proposed.
Jan Ziaja   +2 more
doaj   +2 more sources

Study on Behavior of the Heat Exchanger with Conically-Corrugated Tubes and HDD Baffles

open access: yesChemEngineering, 2022
Baffles with holes in different diameters (or HDD baffles) and conically-corrugated tubes are respectively longitudinal flow baffle and high-efficiency heat exchange tubes proposed by the author. In this paper, vibrations of tube bundles with HDD baffles
Zhiwei Wu, Caifu Qian
doaj   +1 more source

Development of acetylated HDD kit for preparation of 188Re-HDD/lipiodol

open access: yes, 2006
A lipiodol solution of (188)Re-4-hexadecyl-2,2,9,9-tetramethyl-4,7-diaza-1,10-decanedithiol ((188)Re-HDD/lipiodol) is in clinical study for liver cancer therapy. However, formulation of it is difficult due to highly active and unstable sulfhydryl groups.
Lee, Dong Soo   +12 more
core   +2 more sources

Hydromechanical Deep Drawing Process and Optimization of Fender Based on FEM

open access: yesJournal of Harbin University of Science and Technology, 2018
Aiming at the problem of failure and insufficient drawing when stamping forming for complex structure parts,we conduct numerical simulation of hydromechanical deep drawing to automobile front fender.
LIU Xiao-jing   +3 more
doaj   +1 more source

Underutilised Indigenous Vegetables for Household Dietary Diversity in Southwest Nigeria

open access: yesAgriculture, 2021
The diets of many households in developing countries are monotonous and starch-based. Integrating underutilised indigenous vegetables (UIVs) to cropping systems can contribute to both crop and dietary diversities, thereby improving rural households ...
Victoria Adeyemi Tanimonure   +3 more
doaj   +1 more source

Overexpression of CnANT, Coconut BABYBOOM Homologue Alters Plant Growth and Morphology in Transgenic Arabidopsis Plants

open access: yesTropical Agricultural Research, 2012
Identification of molecular markers for the recognition of tissues competent  for in vitro regeneration has a considerable potential for increasing the efficiency of coconut  somatic embryogenesis protocol.
HDD Bandupriya, JM Dunwell
doaj   +1 more source

Mechanical Analysis of DS in Horizontal Directional Drilling

open access: yesApplied Sciences, 2022
In recent years, trenchless horizontal directional drilling (HDD) technology has developed rapidly towards the direction of large pipe diameter and long span. During construction, the buckling deformation and large drag torque of the drillstring (DS) are
Hua Tong, Yongbo Shao
doaj   +1 more source

Analysis of heating degree day requirments changes under climate change in South Khorasan [PDF]

open access: yesتحقیقات کاربردی علوم جغرافیایی, 2018
Heating requirements are one of the most important human issues in the fields of agriculture, tourism and energy management in the present and future .Knowing the extent of these changes can be very effective in making decision makers.
hossein Imani pour   +2 more
doaj  

Risk Assessment in Energy Infrastructure Installations by Horizontal Directional Drilling Using Machine Learning

open access: yesEnergies, 2021
Nowadays we can observe a growing demand for installations of new gas pipelines in Europe. A large number of them are installed using trenchless Horizontal Directional Drilling (HDD) technology. The aim of this work was to develop and compare new machine
Maria Krechowicz, Adam Krechowicz
doaj   +1 more source

Linked versus unlinked hospital discharge data on hip fractures for estimating incidence and comorbidity profiles

open access: yesBMC Medical Research Methodology, 2012
Background Studies comparing internally linked (person–identifying) and unlinked (episodes of care) hospital discharge data (HDD) on hip fractures have mainly focused on incidence overestimation by unlinked HDD, but little is known about the impact of ...
Vu Trang, Day Lesley, Finch Caroline F
doaj   +1 more source

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