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Copepods are the key group in aquatic ecosystems, and play an important role in energy flow, the cycle of materials and information transfer. This paper summarized the distribution and composition of the copepods that spawn resting eggs in the estuarine and coastal marine areas. It also reviewed the survival time, hatching rates, abundance of resting eggs in the sediments, and the potential recruitment into the plankton population as correlated with environmental factors. The prospects of copepod resting egg ecology were also proposed in order to provide new ideas for future research. [ABSTRACT FROM AUTHOR]

Applied beamspace root-MUSIC, with signal spaces as the models, to do harmonic detection to overcome the drawbacks of the traditional methods. Firstly, Gerschgorin disk criterion was employed to detect the source number, then the data acceptable to the array was transformed to get the data of the beamspace, which was further decomposed to noise subspace and signal subspace. Next, a polynomial was constructed with the use of the orthogonality of these two subspaces. By solving this polynomial, the estimate frequency value of the signal was attained. Lastly, with the extension of the PRONY method, the amplitude of the signal was achieved. Simulation experiments and real data analysis show that this algorithm in power system harmonic detection is feasible. [ABSTRACT FROM AUTHOR]

Correlation model of head, efficiency and power in connection with flow and speed for variable speed pump in heating and air-conditioning system was built. According to the operation characteristics of parallel pumps, the optimal allocation situation of speed ratio of parallel pumps when total pump power attains its lowest level was theoretically analyzed with reference of flow of best efficiency point and speed ratio range. Based on a series of parallel pump operating conditions in a typical variable water flow air-conditiong system with variable differential pressure setpoint control, pump energy saving potential was evaluated by simulation under four control strategies, including one pump running at full speed and another pump running at variable speed, two pumps running at variable speed with 0. 05 speed ratio difference, 0. 1 speed ratio difference and the same speed ratio, respectively. Theoretical analyses and simulation results show that the speed ratio difference leads to extremely low efficiency of one pump or several pumps. It is concluded that the operation strategy with parallel pump running at the same speed ratio is the optimal choice to attain maximum pump saving potential. [ABSTRACT FROM AUTHOR]

Turbulent flow and heat transfer in a rectangular duct with cross-sectional aspect ratio b/a =2 rotating along its spanwise direction were investigated by large eddy simulation. The unsteady N-S equations were discretized based on the inconsistent fixed scheme (Adams-Bashforth/Crank- Nicholson) with the second-order precision. And the dynamic subgrid-scale model was used to evaluate the Reynolds stresses. The simulations were performed for a Reynolds number of 400, while the Prandtl number (Pr) was assumed to be 0. 71. The rotation number was changed from 0 to 5. The averaged velocity, temperature and turbulent kinetic energy intensity distribution were analyzed in the cross section of the rectangular duct. The results show that the effects of system rotation with different rotating axes have an important influence on the turbulent flow and heat transfer. It is found that the turbulent flow structure is changed obviously near the stable wall and unstable wall at high rotation number. At the same rotation number, the average heat transfer coefficient of the rotation axis paralleling the y axis is greater than that of the rotation axis paralleling the z axis. [ABSTRACT FROM AUTHOR]

Among Chinese aestheticians the inter-subjectivity theory based on epistemology is represented by Jin Yuanpu's interpretation of literature which advocates the literary interchange and interpretation between different subjects to provide them with the same trend to the artistic values and relevant knowledge. The inter-subjectivity theory based on ontology is represented by Yang Chunshi's existence-transcendence aesthetics and relevant literary theory, which advocates that the equality between human and the world should be restored via the dialog between different subjects to show their respective meanings of existence. In addition to Jin and Yang, Wu Xingming advocates the sociological inter-subjectivity which believes that the interpersonal relation should be regulated via a social code, thus constructing a legal society. Combining the uniqueness with the objects and implication of literature, it is regarded that the ontology is the reasonable foundation on which the inter-subjectivity theory should be framed aesthetically. [ABSTRACT FROM AUTHOR]

The delay-dependent robust stability criteria for neutral systems with mixed time-varying interval delays and nonlinear parameter perturbations are discussed. Based on the Lyapunov-Krasovskii functional approach and linear matrix inequality technology, some improved delay-dependent stability conditions are proposed by utilizing new integral equalities to deal with the bounding for the cross term. The criteria are derived in terms of linear matrix inequalities (LMIs). Compared to the existing criteria, the merit of the proposed conditions is less conservative. Numerical examples are given to illustrate the improvement on the conservatism of the delay bound over some reported results in the literatures. [ABSTRACT FROM AUTHOR]

One of the most effective measures for vibration mitigation of long stay cables for large span cable stayed bridges is using mechanical damper. In the conventional design theory for cable damper, it is assumed that the cable ends are fixed. However, when the span of cable-stayed bridge becomes large and the structure becomesmore flexible, the effect of girder vibration on the cable damper performances have to be considered. In this paper, simplified models with different mechanical performance are used to study the effect of girder vibration. The test results show that the girder vibration reduces the effectiveness of damper. Therefore, it is suggested that the girder vibration should be taken into account in cable damper design for long span cable, especially in the case of cable and girder coupled vibration probably existed. [ABSTRACT FROM AUTHOR]

A novel relevance feedback algorithm was presented based on non-negative matrix factorization (NMF) learning in content-based image retrieval system. During the retrieval process, users can mark images similar to the query image as positive samples. Then the algorithm constructs an NMF basic matrix with the eigen vectors of the positive samples, which can be used to increase the accurate ratio for the image retrieval. Experiments were carried out on a big size database consisting of 500 images. The results show that accurate ratio of image retrieval can be increased much after using interactive NMF feedback algorithm. [ABSTRACT FROM AUTHOR]