Frost damage is one of the main reasons for decay concrete in cold regions, which affected by many factors such as freezing temperature, number freeze-thaw cycles (FTCs), pore and aggregate structure, FTCs presents a certain distribution characteristic. In view this, systematic prediction method was established multi-scale method. Firstly, behavior simulated micro-calculation Subsequently, micr...

Cellular damage, induced by either A23187 (2 X 10(-5)M) or 2,4-dinitrophenol (DNP) (10(-3)M), has been studied in incubated mouse soleus muscle and has been monitored by electron microscopy and measurement of creatine kinase (CK) efflux. CK efflux induced by DNP was dependent on extracellular Ca, whereas the characteristic myofilament breakdown was not. Chlorpromazine (2 X 10(-4)M; an inhibitor...

Due to the insufficiency of damage model, on the basis of studying deeply deformation and damage mechanism of the rock mass, considering the process and phenomenon of the damage of rock mass, damage part can be divided into two parts: the damage material and micro defects due to the change of damage material, then this paper puts forward a new definition of damage. Besides it proposes an impact...

Introduction:In the nuclear medicine departments, staff exposure to radiation is inevitable during patient positioning and radiopharmaceutical preparation. There is controversy regarding the use of usual lead aprons with respect to penetrating gamma rays used in nuclear medicine departments as well as production of characteristic lead x-ray from aprons. Methods:</stron...

Isozyme Profiles and Specific Organ Damage. CORNISH, HERBERT H., BARTH, MARY L., and DODSON, VERNON N. (1970). Toxicol. Appl. Pharmacol 16,41 l-423. Serum lactic dehydrogenase isozymes have been utilized as a means of detecting specific organ damage in rats. The serum LDH isozyme patterns seen in response to liver or kidney damage are markedly different, thus these patterns were utiiized to ide...

The drive-by method has become a popular indirect approach for bridge damage inspection (BDI) because of its simplicity in deployment by evaluating the health status solely via vehicle dynamic response. Derived from response, recent proposed contact-point response involves no vibration signal with frequency, bearing great potential BDI. However, an appropriate methodology application BDI remain...

Abstract Steel fiber reinforced concrete (SFRC) will appear ununiform corrosion under chloride environment, resulting in corrosion-induced crack. However, the mechanism of crack corroded SFRC is not clear. In this paper, 3D mesoscale numerical model structure established, generation algorithm round straight steel provided, and are simulated by XFEM, at end damage characteristic studied. The res...

Thermal shock is common in fire disaster and blasting of rock engineering; moreover, the mass bears dynamic mechanical disturbance frequently. In order to study damage characteristics thermal on physical compressive properties, granite treated different temperatures at heating rates was obtained by measure ultrasonic wave velocity, internal structures were scanning electron microscopy experimen...