Results 41 to 50 of about 2,773,225 (337)

Single-Sand Configuration Technology of Horizontal Wells Based on Depositional Models Constraints

open access: yesCejing jishu, 2023
As one of the earliest development areas in Tarim oilfield, the TI oil group in L10 well area has entered the middle and high water cut stage. The sedimentary system is complex, and the reservoir sedimentary facies change quickly.
ZHOU Jingping   +5 more
doaj   +1 more source

Axiomatizations of quasi-polynomial functions on bounded chains [PDF]

open access: yes, 2009
Two emergent properties in aggregation theory are investigated, namely horizontal maxitivity and comonotonic maxitivity (as well as their dual counterparts) which are commonly defined by means of certain functional equations.
Couceiro, Miguel, Marichal, Jean-Luc
core   +5 more sources

From lactation to malignancy: A comparison between healthy and cancerous breast gland at single‐cell resolution reveals new issues for tumorigenesis

open access: yesFEBS Letters, EarlyView.
Single‐cell RNA sequencing reveals an opposite role of SLPI in basal tumors based on metastatic spread, along with shared activation of specific regulons in cancer cells and mature luminal lactocytes, as well as downregulation of MALAT1 and NEAT1 in the latter.
Pietro Ancona   +4 more
wiley   +1 more source

HORIZONTAL WELL DRILL-IN FLUIDS

open access: yesRudarsko-geološko-naftni Zbornik, 1998
Main objective of horizontal driling is to place a drain-hole for a long distance within the pay zone to enhance productivity or injectivity. In drilling horizontal wells, more serious problems appear than in drilling vertical wells.
Nediljka Gaurina-Međimurec
doaj  

Research on Refracturing Technology of Horizontal Wells Based on Dynamic Drainage Volume

open access: yesFrontiers in Energy Research, 2022
Refracturing is an important method to improve the productivity of low-yield and low-efficiency horizontal wells. Due to the influence of geological factors and primary fracturing, it is of great importance to select suitable candidate wells and ...
Qi Dong   +11 more
doaj   +1 more source

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

open access: yesFEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia   +5 more
wiley   +1 more source

Numerical study on the multi-stage blasting in horizontal well to enhance the permeability of deep reservoir

open access: yesGeomatics, Natural Hazards & Risk, 2022
Blasting fracturing technique has developed into a most promising option replacing the hydraulic fracturing for enhancing the permeability of deep formation in the resource exploitation.
Yuan Wei   +6 more
doaj   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

open access: yesFEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer   +7 more
wiley   +1 more source

AstroSat observation of GX 5-1: Spectral and timing evolution [PDF]

open access: yes, 1913
We report on the first analysis of AstroSat observation of the Z-source GX 5- 1 on February 26-27, 2017. The hardness-intensity plot reveals that the source traced out the horizontal and normal branches.
Bhulla, Yashpal   +3 more
core   +4 more sources

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

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