A one-dimensional sand-pile model (Manna model), which has a stochastic redistribution process, is studied both in discrete and continuous manners. The system evolves into a critical state after a transient period. A ...A one-dimensional sand-pile model (Manna model), which has a stochastic redistribution process, is studied both in discrete and continuous manners. The system evolves into a critical state after a transient period. A detailed analysis of the probability distribution of the avalanche size and duration is numerically investigated. Interestingly,contrary to the deterministic one-dimensional sand-pile model, where multifractal analysis works well, the analysis based on simple finite-size scaling is suited to fitting the data on the distribution of the avalanche size and duration. The exponents characterizing these probability distributions are measured. Scaling relations of these scaling exponents and their universality class are discussed.展开更多
We present a stochastic critical slope sandpile model, where the amount of grains that fall in an overturning event is stochastic variable. The model is local, conservative, and Abelian. We apply the moment analysis t...We present a stochastic critical slope sandpile model, where the amount of grains that fall in an overturning event is stochastic variable. The model is local, conservative, and Abelian. We apply the moment analysis to evaluate critical exponents and finite size scaling method to consistently test the obtained results. Numerical results show that this model, Oslo model, and one-dimensional Abelian Manna model have the same critical behavior although the three models have different stochastic toppling rules, which provides evidences suggesting that Abelian sandpile models with different stochastic toppling rules are in the same universality class.展开更多
OBJECTIVE: To compare the effects of a Chinese herbal suppository(Jianpi suppository) and Western Medicine(mesalazine) on hemorheology and CD62p in patients with ulcerative colitis(UC).METHODS: In a randomized trial, ...OBJECTIVE: To compare the effects of a Chinese herbal suppository(Jianpi suppository) and Western Medicine(mesalazine) on hemorheology and CD62p in patients with ulcerative colitis(UC).METHODS: In a randomized trial, 120 mild to moderate UC patients were randomly divided into two equal groups. The Jianpi suppository group used Chinese herbal suppository rectally, while the mesalazine group was treated with mesalazine tablets orally. Two 15-day courses of treatment were carried out in both groups. Changes in the hemorheology and CD62p indices in patients were observed.RESULTS: The hemorheology and CD62p indices in the Jianpi suppository group decreased significantly more than those of the mesalazine group.CONCLUSION: Jianpi suppository is effective in improving the hypercoagulability of UC patients, and therefore may be worth using in clinical practice.展开更多
文摘A one-dimensional sand-pile model (Manna model), which has a stochastic redistribution process, is studied both in discrete and continuous manners. The system evolves into a critical state after a transient period. A detailed analysis of the probability distribution of the avalanche size and duration is numerically investigated. Interestingly,contrary to the deterministic one-dimensional sand-pile model, where multifractal analysis works well, the analysis based on simple finite-size scaling is suited to fitting the data on the distribution of the avalanche size and duration. The exponents characterizing these probability distributions are measured. Scaling relations of these scaling exponents and their universality class are discussed.
基金国家自然科学基金，the State Key Laboratory of Laser of China
文摘We present a stochastic critical slope sandpile model, where the amount of grains that fall in an overturning event is stochastic variable. The model is local, conservative, and Abelian. We apply the moment analysis to evaluate critical exponents and finite size scaling method to consistently test the obtained results. Numerical results show that this model, Oslo model, and one-dimensional Abelian Manna model have the same critical behavior although the three models have different stochastic toppling rules, which provides evidences suggesting that Abelian sandpile models with different stochastic toppling rules are in the same universality class.
文摘OBJECTIVE: To compare the effects of a Chinese herbal suppository(Jianpi suppository) and Western Medicine(mesalazine) on hemorheology and CD62p in patients with ulcerative colitis(UC).METHODS: In a randomized trial, 120 mild to moderate UC patients were randomly divided into two equal groups. The Jianpi suppository group used Chinese herbal suppository rectally, while the mesalazine group was treated with mesalazine tablets orally. Two 15-day courses of treatment were carried out in both groups. Changes in the hemorheology and CD62p indices in patients were observed.RESULTS: The hemorheology and CD62p indices in the Jianpi suppository group decreased significantly more than those of the mesalazine group.CONCLUSION: Jianpi suppository is effective in improving the hypercoagulability of UC patients, and therefore may be worth using in clinical practice.
