In this paper, we present a noise removal technique by combining the P-M model with the LLT model. The combined technique takes full use of the advantage of both filters which is able to preserve edges and simultaneou...In this paper, we present a noise removal technique by combining the P-M model with the LLT model. The combined technique takes full use of the advantage of both filters which is able to preserve edges and simultaneously overcomes the staircase effect. We use a weighting function in our model, and compare this model with the P-M model as well as other fourth-order functional both in theory and numerical experiment.展开更多
针对成套打包采购的瓶颈是采购周期很长,根据不同种类零件采购提前期的差异进行分类,将原来进口套件中采购周期较长的零件拆分成较长提前期零件的套件(LongLead Time Kits,简称LLT套件),分别进行采购。并借助于数量统计,给出相应的安全...针对成套打包采购的瓶颈是采购周期很长,根据不同种类零件采购提前期的差异进行分类,将原来进口套件中采购周期较长的零件拆分成较长提前期零件的套件(LongLead Time Kits,简称LLT套件),分别进行采购。并借助于数量统计,给出相应的安全库存的计算模型。达到缩短绝大部分零部件采购周期,降低库存总成本的目标。展开更多
We propose an efficient gradient-type algorithm to solve the fourth-order LLT denoising model for both gray-scale and vector-valued images.Based on the primal-dual formulation of the original nondifferentiable model,t...We propose an efficient gradient-type algorithm to solve the fourth-order LLT denoising model for both gray-scale and vector-valued images.Based on the primal-dual formulation of the original nondifferentiable model,the new algorithm updates the primal and dual variables alternately using the gradient descent/ascent flows.Numerical examples are provided to demonstrate the superiority of our algorithm.展开更多
AIM To evaluate the validity of LLT in prevention and therapy of acute graft versus host disease and to clarify the underlying mechanisms. LLT is a new compound derived from triptolide, which is the major immunosuppre...AIM To evaluate the validity of LLT in prevention and therapy of acute graft versus host disease and to clarify the underlying mechanisms. LLT is a new compound derived from triptolide, which is the major immunosuppressive fraction of Tripterygium wilfordii Hook. F (TWHF). Studies in vitro and in vivo demonstrated that LLT had potent immunosuppressive activities. Here we tested the immunosuppressive effects of LLT in murine allogeneic bone marrow transplantation (BMT) and investigated the mechanisms underlying its suppressive effects. METHODS LLT was administered to recipients in BALB/cA→C57BL/6 murine BMT model, in which donor and recipient differ at major and minor histocompatibility antigens.Survival and weight change were recorded in recipients after alloBMT. Spleen size, chimerism and splenic T cell subpopulation were analysed by using flow cytometry.展开更多
文摘In this paper, we present a noise removal technique by combining the P-M model with the LLT model. The combined technique takes full use of the advantage of both filters which is able to preserve edges and simultaneously overcomes the staircase effect. We use a weighting function in our model, and compare this model with the P-M model as well as other fourth-order functional both in theory and numerical experiment.
文摘针对成套打包采购的瓶颈是采购周期很长,根据不同种类零件采购提前期的差异进行分类,将原来进口套件中采购周期较长的零件拆分成较长提前期零件的套件(LongLead Time Kits,简称LLT套件),分别进行采购。并借助于数量统计,给出相应的安全库存的计算模型。达到缩短绝大部分零部件采购周期,降低库存总成本的目标。
文摘We propose an efficient gradient-type algorithm to solve the fourth-order LLT denoising model for both gray-scale and vector-valued images.Based on the primal-dual formulation of the original nondifferentiable model,the new algorithm updates the primal and dual variables alternately using the gradient descent/ascent flows.Numerical examples are provided to demonstrate the superiority of our algorithm.
文摘AIM To evaluate the validity of LLT in prevention and therapy of acute graft versus host disease and to clarify the underlying mechanisms. LLT is a new compound derived from triptolide, which is the major immunosuppressive fraction of Tripterygium wilfordii Hook. F (TWHF). Studies in vitro and in vivo demonstrated that LLT had potent immunosuppressive activities. Here we tested the immunosuppressive effects of LLT in murine allogeneic bone marrow transplantation (BMT) and investigated the mechanisms underlying its suppressive effects. METHODS LLT was administered to recipients in BALB/cA→C57BL/6 murine BMT model, in which donor and recipient differ at major and minor histocompatibility antigens.Survival and weight change were recorded in recipients after alloBMT. Spleen size, chimerism and splenic T cell subpopulation were analysed by using flow cytometry.
基金supported by the National Key Research and Development Plan(No.2016YFC0203706)the National Natural Science Foundation of China(Nos.U1609212 and 51621005)the Environmental Welfare Project of the Ministry of Environmental Projection of China(No.201509012)
