It was shown that finite P-recovery holds for partial meet package contraction in Furhmann and Hansson (1994). However, it is not known if recovery holds for partial meet package contraction in the infinite case. In this paper, I show that recovery does not hold for partial meet package contraction in the infinite case.

The technological progress makes great contribution to the rapid economic growth of China during its past three decades of reform and opening up. An empirical analysis conducted over China’s total factor productivity certifies this conclusion but it also reveals that China’s TFP growth rate is not very high. We further explore the various stages of change of China’s total factor productivity and the causes of these changes and finally take an analytical calculation over the present flaws of China’s innovation system (...) and offer some advices. (shrink)

Chinese philosophers, especially Mencius, Wang Yangming and his followers, the pursuit of a "saint." This requires them to conduct a thorough awareness of people's own reflection and fundamental change. They discover and explore some special aspects of consciousness, Husserl's phenomenology of these areas have not been taken into account, and thus made ​​a thought-provoking to the latter question. This paper explores three related issues: one, a person or animal to its direct experience; Second, the moral sense and intention of their (...) own behavior and vivid experience of the direct relationship between consciousness; Third, awareness of the intention to meditate on the silenced of. Chinese philosophers, especially Mencius, Wang Yangming and Wang's followers, pursue the way to become a "holy man", which requires a thorough reflection on, and a radical change of one's own consciousness. Hence they discover and investigate some special aspects of consciousness, which haven't been taken into account by Husserlian Phenomenology, and therefore pose revealing questions to the latter. This article discusses three of them: the first question concerns a direct feeling for other human beings and animals; the second question concerns the relation between the moral conscience and the immediate consciousness of one's own intentional acts or lived-experiences; the third question concerns the intentionality of the meditative, tranquil consciousness. (shrink)

This paper presents a numerical investigation of bird attitude angles affecting the soft-impact damage of a full fan assembly. Firstly, considering the geometry of a mallard, a real bird model is established by the Smoothed Particle Hydrodynamics method and calibrated with available test data. Then, complying with airworthiness requirements, simulations of a full-bladed fan assembly subjected to a real bird were conducted to determine the critical ingestion parameters. Furthermore, a real bird with different attitude angles aimed at a full fan (...) assembly was simulated. Results show that attitude angles of the bird produce a significant impact on the effect of the bird strike on rotating blades and would increase the possibility of blade failures, especially for the yaw angle of -45° and the pitch angle of −60°. It is invaluable for commercial airlines and engine manufactures to provide safe flight and landing by adopting the real bird model with critical yaw and pitch angles in the design for resistance to bird ingestion. (shrink)

China’s efforts in Universal Health Coverage since the birth of the People’s Republic in 1949 has passed four stages: 1949–1983, Maoist UHC; 1984–2003, Deng’s Free-market healthcare experiment; 2004–2008, response to people’s call and restorative efforts; 2009-present, reducing fragmentation, co-payment and improving primary care. The efforts of the first three stages aimed more at extending coverage and service scope, and those of the fourth stage for better equity, quality, and affordability. This article updates recent efforts in the fourth stage and looks (...) ahead to the future after 2018, with the hope of providing references for the world in healthcare reform and development. (shrink)

The remainder equations were introduced by S. O. Hansson. In this paper, we will give an exhaustive characterization of the set of solutions for remainder equations. Moreover, solutions to some unsolved problems proposed by Hansson are reported.

Innovation subsidy is of great significance to promoting enterprise innovation development. However, in recent years, the frequent occurrence of R&D subsidy deception in China has greatly reduced effectiveness of innovation. From the perspective of the strategic choice motivation of the innovation subject, this paper constructs a multiplayer stochastic evolutionary game model. The influence of each variable on the subject strategy adoption is analyzed by simulation. There are two important findings in this paper. First, the paper confirms that there is an (...) optimal boundary for the high subsidies received by enterprises and academic institutions, and the “subsidy boundary” is solved through the model. Second, this paper analyzes the effectiveness of the regulation of each variable through simulation and provides management and policy implications. (shrink)

In future decades, food demand for an increased population with elevated standards of living poses a huge challenge, particularly in the sense of the environmental impacts of agricultural systems. We have analyzed agricultural data from the past 50 years, and found that the current agricultural practices will have negative effects on global food production: total agricultural area has decreased since 2000, fertilizer and pesticide consumption increased while their efficiency decreased, and available water sources are already being used for irrigation. Expansion (...) of biofuel production, cultivation limitations of genetically modified organisms, and the trend of increasing living standards will all intensify the risks of a global food crisis in the coming decades. Crop yield and environmental protection will then have to be traded off if there are no feasible solutions at country or regional scales, and it is crucial for agricultural sustainability to increase crop yields and simultaneously decrease environmental impacts of agriculture intensification. (shrink)

Ground fissures pose serious hazards to underground, as well as aboveground, structures. In underground railways, which are near ground fissures, the potential for disasters is even higher since tunnels face threats from fissure activities. To determine the interaction between a tunnel and ground fissure in the event of an earthquake, field surveys and data analysis were applied to study the activity and damage caused by the fissure. Shaking table tests and a numerical simulation model were used to understand the dynamic (...) response of the fissure site and tunnel. The fissure site had a clear hanging wall effect, where the acceleration amplification was larger in the hanging wall than that in the footwall both on the surface and at the middle of the fissure site. The zone of influence was also wider in the hanging wall. The acceleration magnification factor increased with the burial depth and peak acceleration of the input earthquake. The peak ground acceleration decreased with the burial depth on both sides of the fissure. The greatest PGA coefficient was obtained at the surface of the site. The vertical soil pressure was influenced by the metro tunnel and fissure. The vertical soil pressure was larger in the hanging wall, especially in the zone near the fissure, but was less near the tunnel. The horizontal soil pressure above the tunnel was less than that near the fissure. The results of this study are essential for the safe design of underground railway systems. (shrink)

In the analysis of Shaanxi Red Tourism Development status and existing problems, based on the proposed development of red tourism strategic positioning, strategic objectives and strategic measures, through the implementation of the "1312 Project", that is to cultivate a red tourism capital, northern Shaanxi, Guanzhong , 3 large red tourism sector in southern Shaanxi, and 12 fine line, as the red following the Warriors travel to create a new ace after the Shaanxi tourism products. Based on the analysis of the (...) current situation of Shaanxi red-tourism development, strategic positioning, goals and corresponding measures of developing Shaanxi red-tourism are put forward. Through implementing the project of 1312, which stands for one red-tourism center, three red -tourism regions and twelve red-tourism routes, the red-tourism products of Shaanxi would become new trump tourism products. (shrink)

Shale oil is an unconventional oil resource with great potential. Oil saturation is an essential parameter for formation evaluation. However, due to the complexity of matrix mineral components and pore structure, Archie’s law cannot be used directly to calculate [Formula: see text] in shale oil reservoirs. We have developed a new saturation model for shale oil reservoirs. This model allows us to separate the organic from the inorganic pores, eliminate the background conductivity mainly caused by the borehole fluid or conductive (...) minerals and determine the effective conductive porosity, which rules out nonconductive porosity, including isolated pores and the pore space affected by the fluid distribution. By analyzing the logging and core experimental data from the Qianjiang Sag, Jianghan Oilfield, we found that the T2 cutoff porosities of nuclear magnetic resonance logging are strongly related to the nonconductive porosities. After we determine the T2 cutoff value using the core experimental data, we can use it to obtain nonconductive porosity fraction in each depth point, which allows us to efficiently calculate [Formula: see text]. We calculate oil saturation values and use them to estimate the oil content. The results are coherent with the core experimental data, which indicates the efficiency of this model. (shrink)

Container ports are critical components of global port and shipping supply chain systems. Their handling operation resiliencies can affect their performance, along with those of the overall port and shipping supply chain. According to the characteristics of the container handling operations, this study establishes a modeling paradigm for quantifying the resilience of handling chain system in container ports. Considering the nonnegative arrive rate and the container handling completion rate, with the upper limit in real container port environments, nonlinear links have (...) been added into the model of the HCS. The resilience of the HCS was analyzed according to the different pole distributions of unsatisfied freight requirement transfer function. Simulation results show that the upper limit of the container handling completion rate has a significant impact on the resilience of the HCS. The contributions herein demonstrate a starting point in the development of a quantitative resilience decision making framework and mitigating the negative impacts for port authorities and other players in the PSSC. (shrink)

A high-efficiency biomass material was designed according to the densification mechanism of biomass. This machine improved the efficiency by recombining the feeding stage, prepressing stage, compaction stage, pressure-holding stage, and pushing stage of the compression process, so that part of the working stages was carried out simultaneously. To further improve efficiency and rationally allocate power at each stage, in this paper, we established a mathematical model for the machine. We use the nonlinear programming in Matlab to solve the minimum value (...) of the model, making the machine work time the shortest. (shrink)

Since the outbreak of the novel coronavirus disease at the beginning of December 2019, there have been more than 28.69 million cumulative confirmed cases worldwide as of 12th September 2020, affecting over 200 countries and regions with more than 920,463 deaths. The COVID-19 pandemic has been sweeping worldwide with unexpected rapidity. In this paper, a hybrid modelling strategy based on tessellation structure- configured SEIR model is adopted to estimate the scale of the pandemic spread. Building on the data pertaining to (...) the global pandemic transmission over the last six months around the world, key impact factors in the transmission and control procedure have been analysed, including isolation rate, number of the infected cases before taking prevention measures, degree of contact scope, and medical level, so as to capture the fundamental factor influencing the pandemic. The quantitative evaluation allowed us to illustrate the magnitude of risks of pandemic and to recommend appropriate national health policy of prevention measures for effectively controlling both intra- and interregional pandemic spread. Our modelling results clearly indicate that the early-stage preventive measures are the most effective action to be taken to contain the pandemic spread of the highly contagious nature of the COVID-19. (shrink)