摘要：Oxygen(O_(2))-sensing matrices are promising tools for the live monitoring of extracellular O_(2) consumption levels in long-term cell *** this study,ratiometric O_(2)-sensing membranes were prepared by electrospinning,an easy,low-cost,scalable,and robust method for fabricating ***(ε-caprolactone)and poly(dimethyl)siloxane polymers were blended with tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II)dichloride,which was used as the O_(2)-sensing probe,and rhodamine B isothiocyanate,which was used as the reference *** functionalized scaffolds were morphologically characterized by scanning electron microscopy,and their physicochemical profiles were obtained by Fourier transform infrared spectroscopy,thermogravimetric analysis,and water contact angle *** sensing capabilities were investigated by confocal laser scanning microscopy,performing photobleaching,reversibility,and calibration curve studies toward different dissolved O_(2)(DO)*** sensing nanofibers showed a high response to changes in DO concentrations in the physiological-pathological range from 0.5%to 20%and good stability under ratiometric *** addition,the sensing systems were highly biocompatible for cell growth promoting adhesiveness and growth of three cancer cell lines,namely metastatic melanoma cell line SK-MEL2,breast cancer cell line MCF-7,and pancreatic ductal adenocarcinoma cell line Panc-1,thus recreating a suitable biological environment in *** O_(2)-sensing biomaterials can potentially measure alterations in cell metabolism caused by changes in ambient O_(2)content during drug testing/validation and tissue regeneration processes.

摘要：这篇论文认为 semiparametric 回归模型 y i = x i 是 +g (t i )+V i (1 i n )(x i， t i ) 被知道设计点，是一个未知斜坡参数， g (

摘要：It is presented in this paper that the new design and its analysis of finite difference domaindecomposition algorithms for the two-dimensional heat equation,and the numerical results have shownthe stability and accuracy of the algorithms,where Saul'yev asymmetric schemes have been used atthe interface *** Algorithm Ⅱ in this paper has further extended those developed by Dawsonand the others,Zhang and Shen.

摘要：The problem of global stabilization by state feedback for a class of time-delay nonlinear system is considered. By constructing the appropriate Lyapunov-Krasovskii functionals (LKF) and using the backstepping design, a linear state feedback controller making the closed-loop system globally asymptotically stable is constructed.

摘要：自然界的光合作用有一个显著的特点,即能量传递效率近乎100%.近年来,由于光合作用实验技术的飞速发展,譬如二维光谱实验和单分子泵浦探测实验,其能量传输过程中的量子相干效应已经在实验上得到了证实.传统的非相干理论能够有效计算能量转移效率,如广义的F?rster理论和修正的Redfield理论.然而,为了描述光合作用中的量子相干效应,人们必须利用量子相干理论.例如,除了传统的Redfield理论之外,还有级联运动方程、量子路径积分、相干修正的Redfield理论、小极化子量子主方程、广义Bloch-Redfield理论等.本文综述了上述方法的主要内容,不仅有助于对自然界光合作用中激子能量转移的量子动力学进行有效的量子模拟,并对人工太阳能收集装置的设计提供了一定的指导作用.

摘要：The tokamak start-up is a very important phase during the process to obtain a suitable equalizing plasma, and its governing model can be described as a set of nonlinear ordinary differential equations（ODEs）. In this paper, we first estimate the parameters in the original model and set up an accurate model to express how the variables change during the start-up phase, especially how the plasma current changes with respect to time and the loop voltage. Then, we apply the control parameterization method to obtain an approximate optimal parameters selection problem for the loop voltage design to achieve a desired plasma current target. Computational optimal control techniques such as the variational method and the costate method are employed to solve the problem, respectively. Finally, numerical simulations are performed and the results obtained via different methods are compared. Our numerical parameterization method and optimization procedure turn out to be effective.

摘要：黄药对硫化矿具有很强的捕收性能,但其对黄铜矿和黄铁矿的分离效果不佳。为了有效地从黄铜矿中分离出黄铁矿,本文将四嗪硫铜官能团和疏水烃基结合,设计出一种新型的捕收剂-四嗪硫铜捕收剂。探究了四嗪硫铜捕收剂对黄铜矿和黄铁矿的浮选性能,并研究了四嗪硫铜捕收剂中不同的疏水烃链对浮选性能的影响。紫外实验结果表明,6-己基-6-甲基-1,2,4,5-四嗪-3-硫铜(HxMTT)易于与铜离子和亚铜离子结合,并在结合过程中释放氢离子进入溶液,但不易与铁离子和亚铁离子结合。原子力和接触角实验结果表明,HxMTT吸附在黄铜矿的表面,增加了黄铜矿表面的疏水性。红外和XPS实验结果进一步表明,HxMTT通过形成Cu—N和Cu—S键化学吸附在黄铜矿表面。

摘要：Spectral and directional control of thermal emission based on excitation of confined electromagnetic resonant modes paves a viable way for the design and construction of microscale thermal emitters/absorbers. In this paper, we present numerical simulation results of the thermal radiative properties of a silicon carbide（Si C） thermal emitter/absorber composed of periodic microstructures. We illustrate different electromagnetic resonant modes which can be excited with the structure,such as surface phonon polaritons, magnetic polaritons and photonic crystal modes, and the process of radiation spectrum optimization based on a non-linear optimization algorithm. We show that the spectral and directional control of thermal emission/absorption can be efficiently achieved by adjusting the geometrical parameters of the structure. Moreover, the optimized spectrum is insensitive to 3% dimension modification.

摘要：In this article,we report the principle and conceptual design of a fundamentally different technology infabricating high precision aberration free optical *** tip-tilt of facet in a mirror array is produced by digitallycontrolled line-tilts of rows and *** has not only provided a cost-effective designing methodology in opticalphysics but also led to a much finer precision of 1 mili arc sec or *** examples of the application of the proposeddigitalised optics,two case studies have been given:a 10 m Schmidt telescope(off-axis)and an 8 m Cassegrain telescope(on-axis).

摘要：非厄米性的研究蕴涵着诸多新物理机制与现象,在激光与传感等多个方面有着重要的应用价值.在非厄米系统中,实本征能量意味着系统具有稳定性,这一性质可通过奇偶时间(PT)对称性保护,并在不同物理系统中得到广泛的研究.本文利用一种新的动力学机制保证实能谱,提出了一种普适的方案来设计具有实能谱的哈密顿量.该方案基于对扩展非厄米体边对应的静电类比,其中静电荷对应态密度,电场则对应复能谱流.通过这一方案,可以重构出具有任意能谱及态局域性质的哈密顿量,即便这些性质不具备任何对称性特征.通过用泊松边值问题代替原本的非厄米哈密顿量对角化问题,这一静电类比也避免了传统数值方法中因非厄米耗散/增益引起的浮点误差问题,从而允许对更大尺寸的系统进行计算.