Results 31 to 40 of about 178,760 (268)

Orthogonal pulsars as a key test for pulsar evolution [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT At present, there is no direct information about evolution of inclination angle χ between magnetic and rotational axes in radio pulsars. As to theoretical models of pulsar evolution, they predict both the alignment, i.e. evolution of inclination angle χ to 0°, and its counter-alignment, i.e. evolution to 90°.
A V Biryukov   +4 more
openaire   +2 more sources

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

NaOH/Urea-Compatible Chitosan/Carboxymethylcellulose Films: Orthogonal Optimization of Packaging Properties

open access: yesMolecules
Chitosan (CS)-based films have demonstrated significant potential as biodegradable packaging materials, but their suboptimal barrier and mechanical properties limit practical applications.
Chang Yu, Hui Sun, Lin Yao, Yunxuan Weng
doaj   +1 more source

Design and Test of Pneumatic Cleaning System for Potato Micro-seed Seeding

open access: yesJournal of Applied Science and Engineering, 2021
To improve the level of precise seeding mechanization of potato micro-seed, a new type of pneumatic cleaning system has been designed. The system adopts a pneumatic cleaning method to achieve precise seeding.
Wanzhi Zhang   +5 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

Research on grinding quality and removal mechanism of polycrystalline diamond tools

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
Aiming at grinding quality of polycrystalline diamond (PCD) tools, the grinding experiment was carried out to optimize the process parameters with cutting edge radius, cutting edge defect and flank roughness as the indexes. The grinding removal mechanism
Sen WANG   +4 more
doaj   +1 more source

Tumor B‐cell infiltration in platinum‐treated advanced muscle‐invasive urothelial carcinoma

open access: yesMolecular Oncology, EarlyView.
Bladder tumors with higher pretreatment memory B‐cell infiltration were linked to longer survival after cisplatin chemotherapy, but not carboplatin. These tumors also showed more organized immune structures (tertiary lymphoid structures) and a shared pro‐inflammatory B‐cell‐rich community, suggesting that memory B cells may help identify patients most ...
Konrad Stawiski   +10 more
wiley   +1 more source

Application of the Orthogonal Test in Basic Control Software Testing for LKJ Device

open access: yesKongzhi Yu Xinxi Jishu, 2019
In LKJ basic control software testing, there are many combined test scenes with multiple-input-parameter. But the number of comprehensive combined test cases is large, and the test cost is high.
JIANG Jian, SHANGGUAN Xianan, HE Xiezhen
doaj  

Preparation parameters of polyaniline/polyvinyl chloride flexible wires for electrical conductivity performance analysis based on orthogonal arrays

open access: yesDesigned Monomers and Polymers, 2021
A flexible polyaniline/polyvinyl chloride (PVC) polymer conductive wire was prepared using flexible PVC polymer as the substrate by the swelling – in-situ polymerization method, the line-shaped dents were pressed on the substrate by the thermodynamic pre-
Wu Xuelian   +4 more
doaj   +1 more source

Preparation of new high hardness martensitic iron-based alloy powders by electrode induction gas atomization

open access: yesFenmo yejin jishu, 2021
The effects of the electrode induction gas atomization parameters (atomization pressure, gas temperature, and melting power) on the particle size distribution, powder fluidity, and yield of the new high hardness martensitic iron-based alloy powders were ...
LIU Yan   +4 more
doaj   +1 more source

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