Horizontal well is one of the important methods of unconventional oil and gas resource development.As increasing length of horizontal section, there is a serious problem that axial force cannot transfer to bit.The drilling field needs a low-friction and low-cost drag reduction tool.This article summarized existing technologies of drag reduction in
At the beginning of its growth, Kampung Batik developed rapidly as a center of batik production and as a residence for residents of Semarang and its surroundings.Kampung Batik then became a very crowded, slum village and became a hotbed red label violin strings color code of crime).The Kampung Batik in 2016 was designated as a Thematic Village by t
Cotton, a natural fiber producing crop of huge importance, is often prone to attack of Verticillium dahliae.Papain-like cysteine proteases (PLCPs) constitute a large family in plants and were proposed to involve in plant defense against pathogen attack in a number of studies.However, there is no detailed characterization of PLCP genes in cotton aga
Gyrinops versteegii is widely used in the hfcs1lp perfume, incense, and cosmetic industries as a raw material.Other potential uses of the plant are being explored, including in food and medicine.Therefore, this study carried out antibacterial assay and gas chromatography-mass spectroscopy of G.versteegii fruit extracts in three solvents with differ