Highlights• A novel phosphorus-containing pyrazolyl derivate (DPAP) was synthesized and used as highly efficient flame-retardant for EP resin.• The curing EP with only 5.0 wt% of DPAP can pass UL94 V-0 rating and possess LOI value as high as 32.6%.• The curing EP with 10 wt% of DPAP...

With the support of national policy of building Yunnan into a gateway in China’s opening up to the Southwest, Yunnan Province offered the great opportunity for second time of starting an undertaking for tourism, and the landscape agriculture welcomes a new development opportunity. On the...

In this paper, the deterministic and stochastic SIRS epidemic models with nonlinear incidence are introduced and investigated. For deterministic system, the basic reproductive number R0 is obtained. Furthermore, if R0≤1, then the disease-free equilibrium is globally asymptotically stable and...

In this paper, a stochastic Lotka–Volterra competitive model with time-dependent delays is investigated. Sufficient conditions for global asymptotic stability of the positive equilibrium are established. The obtained result demonstrates that time-dependent delays have important impacts on the...