Anti-disturbance control of permanent magnet eddy-current coupler speed control system based on disturbance interval observer.

For the permanent magnet eddy-current coupler speed control system with external disturbances, consideration is given to achieving anti-disturbance objectives through disturbance compensation. Utilizing partial information of disturbance dynamics, it is convenient to design a disturbance interval observer (DIO), generating upper and lower bounds covering each element of the external disturbances, where the positive system theory ensures non-negativity of errors. Then, based on the DIO, disturbance reconstruction is performed for feedforward compensation, while feedback control is employed for tracking and stabilization, eliminating control chattering generated by the sliding mode.

Ginsenoside Rg1 promotes remyelination and functional recovery in demyelinating disease by enhancing oligodendrocyte precursor cells-mediated myelin repair.

Background: Inefficient differentiation of oligodendrocyte precursor cells (OPCs) is one of the significant pathological obstacles of myelin repair and provides an essential therapeutic target against behavioral dysfunction in various neurodegenerative diseases, especially in secondary progressive multiple sclerosis (SPMS). Ginsenoside Rg1 (Rg1) has traditionally been recognized as a protector of neuronal damages, preventing its degeneration.

Purpose: We investigated the effects of Rg1 on myelin regeneration-mediated by OPCs and its therapeutic significance in SPMS.

Integrated Metabolomics and Transcriptomics Analyses Reveal the Metabolic Differences and Molecular Basis of Nutritional Quality in Landraces and Cultivated Rice.

Rice ( L.) is one of the most globally important crops, nutritionally and economically. Therefore, analyzing the genetic basis of its nutritional quality is a paramount prerequisite for cultivating new varieties with increased nutritional health.

Multi-Omics Analysis Reveals That Synergistically Regulates SGAs and Fruit Development.

Steroidal glycoalkaloids (SGAs) are cholesterol-derived molecules that contribute to the pathogen defense in tomato but are toxic and considered to be antinutritional compounds to humans. APETALA2/Ethylene Responsive Factor (AP2/ERF) family transcription factors (TFs) play an indispensable role in various biological processes, such as plant growth and development, fruit ripening, biotic and abiotic stresses responses, and SGA biosynthesis. In this study, we identified 176 genes that were domesticated or improved in the tomato variome () within either domestication or improvement sweeps, respectively.

High-quality reference genome sequences of two coconut cultivars provide insights into evolution of monocot chromosomes and differentiation of fiber content and plant height.

Background: Coconut is an important tropical oil and fruit crop whose evolutionary position renders it a fantastic species for the investigation of the evolution of monocot chromosomes and the subsequent differentiation of ancient plants.

Results: Here, we report the assembly and annotation of reference-grade genomes of Cn. tall and Cn.

Basis set exchange: a community database for computational sciences.

Basis sets are some of the most important input data for computational models in the chemistry, materials, biology, and other science domains that utilize computational quantum mechanics methods. Providing a shared, Web-accessible environment where researchers can not only download basis sets in their required format but browse the data, contribute new basis sets, and ultimately curate and manage the data as a community will facilitate growth of this resource and encourage sharing both data and knowledge. We describe the Basis Set Exchange (BSE), a Web portal that provides advanced browsing and download capabilities, facilities for contributing basis set data, and an environment that incorporates tools to foster development and interaction of communities.

Heme distortions in sperm-whale carbonmonoxy myoglobin: correlations between rotational strengths and heme distortions in MD-generated structures.

We have investigated the effects of heme rotational isomerism in sperm-whale carbonmonoxymyoglobin using computational techniques. Several molecular dynamics simulations have been performed for the two rotational isomers A and B, which are related by a 180 degrees rotation around the alpha-gamma axis of the heme, of sperm-whale carbonmonoxy myoglobin in water. Both neutron diffraction and NMR structures were used as starting structures.