Complete Fusion Excitation Function for the 16O+natS Reaction

The complete fusion excitation function for the ¹⁶O+^natS reaction has been measured in the range of 50-75 MeV with a step of 1.0MeV by using 1a position sensitive △E-E telescope system. The model parameters have been extracted from data analysis.The striking gross structure of the excitation function has been observed. The energies of peaks are at ECM=38,43 and 48 MeV respectively.     

Smooth Solution of Multi-dimensional Nonhomogeneous Conservation Law: Its Formula,and Necessary and Sufficient Blowup Criterion

In this paper, we are concerned with the necessary and sufficient condition of the global existence of smooth solutions of the Cauchy problem of the multi-dimensional scalar conservation law with source-term,where the initial data lies in W1,∞(Rn) ∩ C1(Rn). We obtain the solution formula for smooth solution, and then apply it to establish and prove the necessary and sufficient condition for the global existence of smooth solution. Moreover, if the smooth solution blows up at a finite time, the e...     

Activity and steady-state kinetics of one-dimensional kinetic Ising model

In this work, we focused on the kinetics of a one-dimensional Ising system (1DIS) with constant nearest-neighbor interaction (NNI). The exact solution of both thermodynamics and kinetics of this system under quasi-chemical approximation (QCA) had been shown in the literature, and the equilibrium solution was exact. In this work, it was discussed why QCA applied the best in the case of 1DIS with constant NNI. Furthermore, extension had been made to discuss that due to this special reason, perhaps the kinetics of the system under QCA is the correct steady-state kinetics. Inspired by this observation, the activity and activity coefficients of the system was studied closely to re-examine the form of the equation of motion under QCA. A novel concept—the instantaneous activities and the corresponding instantaneous activity coefficients—was introduced, and in terms of these quantities the kinetics seemed to be much simpler and physically more meaningful. The chevron plot of this system was also discussed and new way of looking at the rollover of chevron plots was presented.     

磁化套筒惯性聚变中端面损失效应的一维唯象模型与影响分析

得益于激光预加热和轴向磁场的作用,磁化套筒惯性聚变(magnetized liner inertial fusion,MagLIF)构型理论上能有效降低聚变实现的难度,具有极大的应用潜力.本文选择MagLIF过程中伴随激光预加热所必然存在端面损失效应作为研究目标,搭建了能够描述几何参数与腊肠不稳定性等高维效应的一维唯象物理模型,并分别通过与二维流体动力学程序和国外同类程序的计算对比完成参数拟合校验;在此基础上,获得端面损失效应对MagLIF内爆过程及预加热效果的影响规律.计算结果表明:不同喷射半径下MagLIF负载在内爆过程的绝大多数时间内保持了相近的流体动力学演化过程,并在迟滞阶段经历了相同的质量损失比例,且考虑端面效应后得到的预加热和内爆产额相对变差,但却不改变规律性的趋势.所建立的模型与结论有助于加深对MagLIF预加热和端面损失过程中物理图像的认知和理解.     

Graphite Carbon Nitride and Its Composites for Medicine and Health Applications

With the progress of science and technology and the improvement of people‘s living standards, the performance of traditional materials can no longer fully meet the needs of social development. Graphitic phase carbon nitride (g-C₃N₄), as a new type of nanomaterial, has good properties. Its unique graphite like structure and stable thermodynamic characteristics have led an increasing number of researchers to explore its diverse functions and use this as a basis to develop related energy and products for applications in various fields. Among them, applications in the field of medicine health have become popular in recent years. Therefore, this review summarizes the synthesis methods of g-C₃N₄ and its composites, as well as their applications in food, medicine, environmental monitoring and disease treatment, in the hope of providing references and basis for further expanding the applications of g-C₃N₄ in large health areas.     

微放电等离子体多负辉区结构融合过程数值模拟研究

高气压下的微型电热推进器(MPT)中的放电等离子体存在多负辉区结构,其负辉区有融合趋势。对矩形微放电等离子体推进器(RMPT)的负辉区融合过程进行了二维模拟分析,在方法上采用了非平衡态的自洽流体模型,并考虑了离子电流加热和三体碰撞过程。结果显示：矩形微放电等离子体推进器(RMPT)在低电流条件下存在两个稳定的负辉区,当超过某一电流阈值条件后,两个负辉区会在腔体中心重合。分析了这一过程的成因,认为其融合过程本质上是空心阴极的导通过程,其融合与否与鞘层电压有关。     

A salt-free,zero-discharge and dyebath-recyclable circular coloration technology based on cationic polyelectrolyte complex for cotton fabric dyeing

Cellulose - Textile industry is one of the most polluting industries due to the large quantities of dyeing wastewater it generates and discharges. Herein, we report an eco-friendly and sustainable...     

A novel nonsmooth approach for flexible multibody systems with contact and friction in 3D space

Nonlinear Dynamics - For computational multibody system dynamics, contact and friction problems are very complex and important problems. Therefore, this paper proposes a novel nonsmooth method for...