Practice,as an objective and physical activity by which human beings can initiatively explore and reshape the reality,is a contradiction system of structural complex and multi-sided stipulation,and has therefore decided that it inevitably has the characteristics of subjectivity,objectivity,initiative; universality,immediate-reality; intermediary;

Only based on good conductivity we can adjust integral structure of composites more and scheme out structural complex materials that are provided with higher shielding effectiveness.

Stereolithography of structural complex ceramic parts

The MP26 manufacturing polyribosomes are found to be associated with a structural complex in which also the cytoskeleton and plasma membranes participate.

The structural complex ferric iron was found at the centre of two electric gradient whose the biggest is suggested to be initiated by the unpaired charge.

Recent findings such as mutations in structural complex II genes in certain tumours emphasize the need to think outside the classical clinical presentation.

Bird communities' response to habitat edges is influenced by the season and habitat characteristics but it is still poorly understood how communities respond to structural complex (i.e.

In this paper, the identification of the complex modal parametersof a viscous damping linear vibration system in the time domain is presented. The recurrence methods of the least square and increasing the order of model are proposed. We called it the double-recurrence method of the least square. Firstly, the complex frequencies are identified and then the complex modes. In order to give exits for noise, the order of fitting mathematical model greater than that of vibration system is adopted.. For the purpose...

In this paper, the identification of the complex modal parametersof a viscous damping linear vibration system in the time domain is presented. The recurrence methods of the least square and increasing the order of model are proposed. We called it the double-recurrence method of the least square. Firstly, the complex frequencies are identified and then the complex modes. In order to give exits for noise, the order of fitting mathematical model greater than that of vibration system is adopted.. For the purpose of extractly structural complex modes and separeating them from noise modes, the modal confidence factors (MCF) and mode shape correlation coeffcient(MSCC) are used. Computer simulated experiments have been made for proving the correctness of this method and some results are given in this paper.

The main oil-generation region of Jizhong depression,including Gu'an,Baxian,Raoyang,Shenxian and Shulu sags,was a unified oil-generation depres-sion during the Eocene and Early-Middle Oliocene.The basement rocks of thedepression were cut into a series of rhombic or semi-rhombic fault blocks withuplifts and depressions by fractures due to multi-tectonic movements.Thesefractures are normal faults in profiles,but have echelon arrangement,sheardisplacement,branching fractures and dragging structures on the horizantalplane,showing...

The main oil-generation region of Jizhong depression,including Gu'an,Baxian,Raoyang,Shenxian and Shulu sags,was a unified oil-generation depres-sion during the Eocene and Early-Middle Oliocene.The basement rocks of thedepression were cut into a series of rhombic or semi-rhombic fault blocks withuplifts and depressions by fractures due to multi-tectonic movements.Thesefractures are normal faults in profiles,but have echelon arrangement,sheardisplacement,branching fractures and dragging structures on the horizantalplane,showing that most of the faults were formed by shearing stress.Thisis further proved by anticlines,synclines and even the echelon arrangementof higher-order structures.The compressive structurt in the present area arecomplicated by tensil or tensil-shearing fractures.This kind of geological phe-nomena suggests that these structures are characterized by both directions ofclockwise and anti-clockwise and compresive and shearing mechanical properties.The study on the history of tectonic development indicates that the exten-tion of the depression took place during the deposition period,thus formedmid-small dextal structures;the contraction of the depression occurred in thediscordant period,and formed sinistral structures.This kind of sinistral anddextral shearings have happend alternatively for many times ever since theTertiary,and finally formed a huge structural complex with buried-hill asits main body.The reversal motions led to multi-migration,extenct distribu-tion and the best enrichment of hydrocarbon.

An eigenvalue problem is established based on the relationship between columns in the frequency response function (FRF) matrix of the structure. From its eigenvectors, structural complex modal vectors, and then complex frequencies are extracted. It is quite similar to the global Multiple-Input and Multiple-Output(MIMO) time domain method. Some characteristics of the time domain method are maintained, while some interesting modes within the particular band can be emphasized and unequal frequency interval...

An eigenvalue problem is established based on the relationship between columns in the frequency response function (FRF) matrix of the structure. From its eigenvectors, structural complex modal vectors, and then complex frequencies are extracted. It is quite similar to the global Multiple-Input and Multiple-Output(MIMO) time domain method. Some characteristics of the time domain method are maintained, while some interesting modes within the particular band can be emphasized and unequal frequency interval FRF data acquisition can be used.