Results 51 to 60 of about 24,564,249 (381)

The research of river basin ecological compensation based on water emissions trading mechanism

Water Science and Technology
By integrating the successful case of the European Union emissions trading system, this study proposes a water emissions trading system, a novel method of reducing water pollution.
Zuliang Lu, Lu Xing, Ruixiang Xu, Chunjuan Hou, Yin Yang   +4 more
doaj   +1 more source

Gauge-invariant description of several (2+1)-dimensional integrable nonlinear evolution equations

, 2009
We obtain new gauge-invariant forms of two-dimensional integrable systems of nonlinear equations: the Sawada-Kotera and Kaup-Kuperschmidt system, the generalized system of dispersive long waves, and the Nizhnik-Veselov-Novikov system.
A. Davey, A. P. Veselov, A. R. Forsyth, A. V. Gramolin, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, B. G. Konopelchenko, E. A. Kuznetsov, L. A. Takhtadzhyan, L. J. F. Broer, L. P. Nizhnik, L. V. Bogdanov, M. Boiti, M. J. Ablowitz, S. V. Manakov, V. E. Zakharov, V. E. Zakharov, V. E. Zakharov, V. E. Zakharov, V. G. Dubrovsky, V. G. Dubrovsky, V. S. Dryuma   +28 more
core   +1 more source

A large‐scale retrospective study in metastatic breast cancer patients using circulating tumour DNA and machine learning to predict treatment outcome and progression‐free survival

Molecular Oncology, EarlyView.
There is an unmet need in metastatic breast cancer patients to monitor therapy response in real time. In this study, we show how a noninvasive and affordable strategy based on sequencing of plasma samples with longitudinal tracking of tumour fraction paired with a statistical model provides valuable information on treatment response in advance of the ...
Emma J. Beddowes, Mario Ortega Duran, Solon Karapanagiotis, Alistair Martin, Meiling Gao, Riccardo Masina, Ramona Woitek, James Tanner, Fleur Tippin, Justine Kane, Jonathan Lay, Anja Brouwer, Stephen‐John Sammut, Suet‐Feung Chin, Davina Gale, Dana W. Y. Tsui, Sarah‐Jane Dawson, Nitzan Rosenfeld, Maurizio Callari, Oscar M. Rueda, Carlos Caldas   +20 more
wiley   +1 more source

CRE Solvability, Exact Soliton-Cnoidal Wave Interaction Solutions, and Nonlocal Symmetry for the Modified Boussinesq Equation

Advances in Mathematical Physics, 2016
It is proved that the modified Boussinesq equation is consistent Riccati expansion (CRE) solvable; two types of special soliton-cnoidal wave interaction solution of the equation are explicitly given, which is difficult to be found by other traditional ...
Wenguang Cheng, Biao Li
doaj   +1 more source

Novel delay-dependent exponential stabilization criteria of a nonlinear system with mixed time-varying delays via hybrid intermittent feedback control

Advances in Difference Equations, 2017
In this paper, we investigate the problem of exponential stabilization criteria for a nonlinear system with mixed time-varying delays, including discrete interval and distributed time-varying delays.
Patarawadee Prasertsang, Thongchai Botmart   +1 more
doaj   +1 more source

Controllability in nonlinear systems

Journal of Differential Equations, 1973
AbstractIn this paper we obtain an explicit expression for the reachable set for a class of nonlinear systems. This class is described by a chain condition on the Lie algebra of vector fields associated with each nonlinear system. These ideas are used to obtain a generalization of a controllability result for linear systems in the case where ...
openaire   +2 more sources

Controllability of nonlinear systems

Journal of Differential Equations, 1972
Discussion of the controllability of nonlinear systems described by the equation dx/dt - F(x,u). Concepts formulated by Chow (1939) and Lobry (1970) are applied to establish criteria for F and its derivatives to obtain qualitative information on sets which can be obtained from x which denotes a variable of state in an arbitrary, real, analytical ...
Velimir Jurdjevic, Héctor J. Sussmann
openaire   +2 more sources

Molecular imaging predicts trastuzumab‐deruxtecan (T‐DXd) response in head and neck cancer xenograft models

Molecular Oncology, EarlyView.
Trastuzumab‐deruxtecan, a HER2‐targeting antibody‐drug conjugate, shows promising antitumor activity in head and neck squamous cell carcinoma with low HER2 expression. In vitro and in vivo studies demonstrated dose‐dependent cell death and tumor growth reduction in low HER2‐expressing cell lines, which correlated with drug accumulation measured using a
Abdullah Bin Naveed, Lucas Mani, Muhammad Bilal Mirza, Ashtyn McAdoo, Takahito Kondo, Hidenori Tanaka, Nicole Meeks, Eben Rosenthal, Marisa Hom   +8 more
wiley   +1 more source

Study of Super-Twisting sliding mode control for U model based nonlinear system

Journal of Hebei University of Science and Technology, 2016
The Super-Twisting control algorithm is adopted to analyze the U model based nonlinear control system in order to solve the controller design problems of non-affine nonlinear systems.
Jianhua ZHANG, Yang LI, Xueli WU, Jianan HUO, Shenyang ZHUANG   +4 more
doaj   +1 more source

Singularities and Moments of Nonlinear Systems [PDF]

IEEE Transactions on Automatic Control, 2020
The notions of eigenvalue, pole and moment at a pole of a continuous-time, nonlinear, time-invariant system are studied. Eigenvalues and poles are first characterized in terms of invariant subspaces. Tools from geometric control theory are used to define nonlinear enhancements of these notions and to study their relationship with the solution of ...
Alberto Padoan, Alessandro Astolfi
openaire   +5 more sources