Results 41 to 50 of about 863,151 (170)

Nitrogen application and mowings improve chromium phytoextraction efficiency of Leersia hexandra Swartz

Environmental Sciences Europe
Phytoextraction is a promising option for Cr-contaminated soil, but the long remediation period remains a primary hindrance to its large-scale application.
Mengting Lin, Xusheng Jiang, Shiqi Chen, Chao Xiao, Jie Liu   +4 more
doaj   +1 more source

Effects of Total Calcium and Iron(II) Concentrations on Heterogeneous Nucleation and Crystal Growth of Struvite

Crystals
This study investigated the effects of calcium (Ca2+) and iron (II) Fe2+ concentrations (0–500 mg/L) on the heterogeneous nucleation and crystallization behavior of struvite (MgNH4PO4·6H2O) through controlled batch precipitation experiments.
Pengcheng Wei, Kaiyu Deng, Yang Huang, Jiayu Yang, Fujiang Hui, Dunqiu Wang, Kun Dong   +6 more
doaj   +1 more source

Proline drives cross-linking between extensins and pectin in the cell wall to combat hexavalent chromium stress in rice plants

Chemical and Biological Technologies in Agriculture
The cell wall (CW) serves as a protective barrier against toxic metals, with extensins (EXTs), proline (Pro), and hydroxyproline-rich glycoproteins playing key roles. These components regulate CW synthesis and assembly and can cross-link with pectin (Pec)
Yu-Xi Feng, Ben-Tao Yao, Qing Zhang, Cheng-Zhi Li, Peng Tian, Yan-Hong Li, Kun Dong, Yu-Juan Lin   +7 more
doaj   +1 more source

Adsorption of Arsenic by Magnetically Modified Biochar from Mulberry Tree Stems

Toxics
In this study, mulberry tree stems were used as raw material to prepare magnetic modified biochar, Fe-BC-500, using the co-precipitation method. The structure of Fe-BC-500 was systematically characterized and tested for arsenic (As) adsorption in batch ...
Sheng Hu, Jiayu Yang, Jingnan Zhang, Jing Pan, Liling Yan, Kun Dong, Dunqiu Wang, Ying Song, Meina Liang   +8 more
doaj   +1 more source

Control Systems and Number Theory [PDF]

International Journal of Mathematics and Mathematical Sciences, 2012
We try to pave a smooth road to a proper understanding of control problems in terms of mathematical disciplines, and partially show how to number-theorize some practical problems. Our primary concern is linear systems from the point of view of our principle of visualization of the state, an interface between the past and the present.
openaire   +3 more sources

Neurocomputational theories of homeostatic control

Physics of Life Reviews, 2019
Homeostasis is a problem for all living agents. It entails predictively regulating internal states within the bounds compatible with survival in order to maximise fitness. This can be achieved physiologically, through complex hierarchies of autonomic regulation, but it must also be achieved via behavioural control.
Oliver J Hulme, Thobias Morville, Boris Gutkin   +2 more
openaire   +4 more sources

Valorization of Red Mud, Steel Slag, and Desulfurization Slag as Industrial Solid-Waste-Derived Catalysts for Ciprofloxacin Degradation via H₂O₂ and Peroxymonosulfate Activation

Crystals
This study used red mud (RM), steel slag (SS), and desulfurization slag (DS) as raw materials to construct three catalytic oxidation systems, namely RM-DCDA/H2O2, SS-DS/H2O2, and SS-DS/peroxymonosulfate (PMS), to promote the utilization of industrial ...
Yan Lin, Jingyan Li, Jiayu Yang, Rui Xu, Dunqiu Wang, Kun Dong, Ruize Sun, Mingrong Wei   +7 more
doaj   +1 more source

Nutrition and Control Theory

Journal of Nutritional Science and Vitaminology, 1991
Organ homeostasis in humans is maintained by the "auto-regulatory system." Although this biological regulatory system is regarded as complicated and difficult to analyze, with the aid of control theory it has become possible for us to construct a mathematical model.
openaire   +3 more sources

Microgrids as Flexible and Network-Connected Grid Assets in Active Distribution Systems

Journal of Electrical and Computer Engineering, 2018
The functionalities of microgrids are detailed and thereby expanded in active distribution systems. A versatile and coordinated operation among multiple microgrids is proposed to facilitate the integration of renewable energy sources (RES) in modern ...
Lei Shao, Xu Zhou, Ji Li, Hongli Liu, Xiaoqi Chen   +4 more
doaj   +1 more source

Effects of Polystyrene Microplastic Exposure on Liver Cell Damage, Oxidative Stress, and Gene Expression in Juvenile Crucian Carp (Carassius auratus)

Toxics
A considerable quantity of microplastic debris exists in the environment and the toxicity of these materials has a notable impact on aquatic ecosystems.
Xiangtong Li, Yuequn Huang, Wenrong Li, Chaoyang Deng, Weiyuan Cao, Yi Yao   +5 more
doaj   +1 more source