Study on the Rheological Properties and Constitutive Model of Shenzhen Mucky Soft Soil

In order to obtain the basic parameters of numerical analysis about the time-space effect of the deformation occurring in Shenzhen deep soft-soil foundation pit, a series of triaxial consolidated-undrained shear rheology tests on the peripheral mucky soft soil of a deep foundation pit support were performed under different confining pressures. The relations between the axial strain of the soil and time, as well as between the pore-water pressure of the soil and time, were achieved, meanwhile on the basis of analyzing the rheological properties of the soil, the relevant rheological models were built. Analysis results were proved that the rheology of Shenzhen mucky soft soil was generally viscous, elastic, and plastic, and had a low yield stress between 90 and 150 kPa. The increase in pore-water pressure made the rheological time effect of the mucky soft soil more remarkable. Thus, the drainage performance in practical engineering should be improved to its maximum possibility extent to decrease the soft-soil rheological deformation. Lastly, a six-component extended Burgers model was employed to fit the test results and the parameters of the model were determined. Findings showed that the extended Burgers model could satisfactorily simulate the various rheological stages of the mucky soft soil. The constitutive model and the determination of its parameters can be served as a foundation for the time-space effect analysis on the deformation of deep soft-soil foundation pits

The Super-cycle Mechanism and Model of Enterprise Expansion

In this paper, as the super-cycle theory of self-organization integrating methodology for enterprise expansion process, we study the super-cycle coupling mechanism of the enterprise and the environment, enterprises and enterprises ,and among factors within the enterprises, then construct the super-cycle model of M & A expansion , virtual enterprise expansion and union expansion to effectively combine resources ,and make synergies spiral under nonlinear . Key words: super-cycle theory, Merger expansion, Virtual enterprise expansion, Union expansion Résumé: Dans l’article présent, comme la théorie de super-cycle d’auto-organisation intégrant la méthodologie du processus de l’expansion de l’entreprise, on étudie le mécanisme de liaison de super-cycle entre l’entreprise et l’environnement, entre les entreprises et parmi les facteurs intérieurs de l’entreprise, et puis construit le modèle de super-cycle de l’expansion M&A, l’expansion virtuelle de l’entreprise et l’expansion d’union afin de combiner effectivement les ressources et faire synergie spirale non-linéaire. Mots-Clés: théorie de super-cycle, expansion de fusion, expansion virtuelle de l’entreprise, expansion d’unio

2-Cyclo­hexyl-4-[(3,5-dimethyl­piperidin-1-yl)meth­yl]-5-methyl­phenol

The title compound, C21H33NO, crystallizes with three independent mol­ecules in the asymmetric unit. The cyclo­hexane and piperidine rings adopt chair conformations. The crystal packing is stabilized by inter­molecular O—H⋯N and C—H⋯O hydrogen bonds, and by weak π–π stacking inter­actions [centroid–centroid distance = 3.876 (2) Å]