We use the work of de Vega, Sanchez, and Comes (1997), to approximate the “particle density” of a “graviton gas”. This “particle density” derivation is compared with Dolgov’s (1997) expression of the Vacuum ene...We use the work of de Vega, Sanchez, and Comes (1997), to approximate the “particle density” of a “graviton gas”. This “particle density” derivation is compared with Dolgov’s (1997) expression of the Vacuum energy in terms of a phase transition. The idea is to have a quartic potential, and then to utilize the Bogomol’nyi inequality to refine what the phase transition states. We utilize Ng, Infinite quantum information procedures to link our work with initial entropy and other issues and close with a variation in the HUP: at the start of the expansion of the universe.展开更多
When exploring the temporal and spatial change law of ocean environment, the most common method used is using smaller-scale observed data to derive the change law for a larger-scale system. For instance, using 30-year...When exploring the temporal and spatial change law of ocean environment, the most common method used is using smaller-scale observed data to derive the change law for a larger-scale system. For instance, using 30-year observation data to derive 100-year return period design wave height. Therefore, the study of inherent self-similarity in ocean hydrological elements becomes increasingly important to the study of multi-year return period design wave height derivation. In this paper, we introduced multifractal to analyze the statistical characteristics of wave height series data observed from oceanic hydrological station. An improvement is made to address the existing problems of the multifractal detrended fluctuation analysis (MF-DFA) method, where trend function showed a discontinuity between intervals. The improved MFDFA method is based on signal mode decomposition, replacing piecewise polynomial fitting used in the original method. We applied the proposed method to the wave height data collected at Chaolian Island, Shandong, China, from 1963 to 1989 and was able to conclude the wave height sequence presented weak multi-fractality. This result provided strong support to the past research on the derivation of multi-year return period design wave height with observed data. Moreover, the new method proposed in this paper also provides a new perspective to explore the intrinsic characteristic of data.展开更多
Home range studies have been focused on determining home range size and utilization distribution. However,most analysis have failed to take into account the activity and function of the animals while using their home ...Home range studies have been focused on determining home range size and utilization distribution. However,most analysis have failed to take into account the activity and function of the animals while using their home ranges. We radio tracked 3 Tibetan foxes(Vulpes ferrilata) during April 2006,September-October 2006,March-May 2007,September-October 2007 and March-April 2008 in Dulan County,Qinghai Province,China. Based on the behaviors and spatial distributions of resource use,we partitioned home ranges into 4 main functional regions:core active region,core inactive region,peripheral active region,and peripheral inactive region. We measured biological characteristics of each region. Core active regions were smaller than core inactive regions,and the peripheral active regions were larger than peripheral inactive regions. Plateau pika(Ochotona curzoniae) densities in both the core active region and peripheral active region were significantly higher than those in counterpart inactive regions. Compared with core inactive regions,core active regions were more likely to be located in areas with gentle slopes,lower elevations and lower positions on slopes. Compared with peripheral inactive regions,lower slope positions were preferred by Tibetan foxes for peripheral active areas,whereas slope and elevation did not differ.展开更多
文摘We use the work of de Vega, Sanchez, and Comes (1997), to approximate the “particle density” of a “graviton gas”. This “particle density” derivation is compared with Dolgov’s (1997) expression of the Vacuum energy in terms of a phase transition. The idea is to have a quartic potential, and then to utilize the Bogomol’nyi inequality to refine what the phase transition states. We utilize Ng, Infinite quantum information procedures to link our work with initial entropy and other issues and close with a variation in the HUP: at the start of the expansion of the universe.
基金Supported by the NSFC-Shandong Joint Fund “Study on the DisasterCausing Mechanism and Disaster Prevention Countermeasures of MultiSource Storm Surges”(No.U1706226)the National Natural Science Foundation of China “Coastal Engineering and Risk Assessment Based on a Four-Layer Nested Multi-Objective Probability Model”(No.51379195)+1 种基金the Natural Science Foundation of Shandong Province “Three-Layer Nested Multi-Objective Probability Prediction and Risk Assessment in Coastal Engineering”(No.ZR2013EEM034)the Program of Promotion Plan for Postgraduates’ Educational Quality “Paying More Attention to the Study on the Cultivation Mode of Mathematical Modeling for Engineering Postgraduates”(No.861801232417)
文摘When exploring the temporal and spatial change law of ocean environment, the most common method used is using smaller-scale observed data to derive the change law for a larger-scale system. For instance, using 30-year observation data to derive 100-year return period design wave height. Therefore, the study of inherent self-similarity in ocean hydrological elements becomes increasingly important to the study of multi-year return period design wave height derivation. In this paper, we introduced multifractal to analyze the statistical characteristics of wave height series data observed from oceanic hydrological station. An improvement is made to address the existing problems of the multifractal detrended fluctuation analysis (MF-DFA) method, where trend function showed a discontinuity between intervals. The improved MFDFA method is based on signal mode decomposition, replacing piecewise polynomial fitting used in the original method. We applied the proposed method to the wave height data collected at Chaolian Island, Shandong, China, from 1963 to 1989 and was able to conclude the wave height sequence presented weak multi-fractality. This result provided strong support to the past research on the derivation of multi-year return period design wave height with observed data. Moreover, the new method proposed in this paper also provides a new perspective to explore the intrinsic characteristic of data.
文摘Home range studies have been focused on determining home range size and utilization distribution. However,most analysis have failed to take into account the activity and function of the animals while using their home ranges. We radio tracked 3 Tibetan foxes(Vulpes ferrilata) during April 2006,September-October 2006,March-May 2007,September-October 2007 and March-April 2008 in Dulan County,Qinghai Province,China. Based on the behaviors and spatial distributions of resource use,we partitioned home ranges into 4 main functional regions:core active region,core inactive region,peripheral active region,and peripheral inactive region. We measured biological characteristics of each region. Core active regions were smaller than core inactive regions,and the peripheral active regions were larger than peripheral inactive regions. Plateau pika(Ochotona curzoniae) densities in both the core active region and peripheral active region were significantly higher than those in counterpart inactive regions. Compared with core inactive regions,core active regions were more likely to be located in areas with gentle slopes,lower elevations and lower positions on slopes. Compared with peripheral inactive regions,lower slope positions were preferred by Tibetan foxes for peripheral active areas,whereas slope and elevation did not differ.
