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Global Journal of Science Frontier Research最新文献

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Quantifying Ruin Metrics in a Diffusion-Driven Erlang (2) Risk Model with Dependency Modeled using the Spearman Copula. 用 Spearman Copula 对具有依赖性的扩散驱动 Erlang (2) 风险模型中的毁灭指标进行量化。
Pub Date : 2024-03-14 DOI: 10.34257/ljrsvol24is4pg1
François Xavier Ouedraogo, Delwendé Abdoul Kabir Kafando, Frédéric Béré, Pierre Clovis Nitiéma
This paper focuses on the perturbation of an Erlang (2) risk model by a diffusion process, challenging the assumption of independence between claim amounts and inter claim durations. To account for a tail dependency structure, we introduce the Spearman copula, enabling the evaluation of Gerber-Shiu functions and ruin probabilities associated with this model. Our analysis delves into the Laplace transforms of the discounted penalty function and the probability of ruin. Towards the conclusion, explicit expressions are derived, accompanied by numerical examples illustrating ruin probabilities for individual claim sizes with exponential distributions.
本文的重点是通过扩散过程对 Erlang (2) 风险模型进行扰动,挑战索赔金额和索赔持续时间之间的独立性假设。为了考虑尾部依赖结构,我们引入了 Spearman copula,从而能够评估与该模型相关的 Gerber-Shiu 函数和毁坏概率。我们的分析深入到贴现惩罚函数和毁损概率的拉普拉斯变换。最后,我们推导出了明确的表达式,并通过数字示例说明了指数分布的单个索赔额的毁损概率。
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引用次数: 0
A Classical Interpretation of the Quantum Universe Extrapolated from the Fine Structure Constant 从精细结构常数推断量子宇宙的经典解释
Pub Date : 2024-02-19 DOI: 10.34257/gjsfravol24is1pg31
John R. Crary
The Fine Structure Constant (FSC) model of the universe is a conceptual perspective based on a classical method for analyzing the Fine Structure Constant (α). A Python algorithm calculates prime number property sets where the sum of the elements equals the whole number values for αequal to 137 and 139. A hybrid coupling of these property sets produces a U{137/139}twin prime metaverse where α=137.036, an almost exact match to the observed value. The FSC Model projects that the Fractional Coupling Constant (α137= 0.036)is a more accurate measure of its relative electromagnetic (EM) strength. This same calculation is used to determine the Fractional Coupling Constants (αm) for the twin prime metaverses (U{2/3}, U{3/5}, U{5/7}through U{197/199}) to estimate their respective electromagnetic forces. The results suggest that this model mirrors our observable universe and offers an abstract landscape into the quantum nature of electromagnetic forces, including Baryonic Matter, Dark Matter, Dark Energy, and a possible variable speed of light.
宇宙的精细结构常数(FSC)模型是一种基于分析精细结构常数(α)的经典方法的概念视角。Python 算法计算素数属性集,其中元素之和等于 α 等于 137 和 139 的整数值。这些属性集的混合耦合产生了一个 U{137/139} 双质数元宇宙,其中 α=137.036 几乎与观测值完全吻合。FSC 模型预测,分数耦合常数(α137= 0.036)是衡量其相对电磁(EM)强度的更精确的指标。同样的计算方法也被用来确定孪生质元星(U{2/3}、U{3/5}、U{5/7}到U{197/199})的分数耦合常数(αm),以估算它们各自的电磁力。结果表明,这个模型反映了我们可观测到的宇宙,并为电磁力的量子性质提供了一个抽象图景,包括重子物质、暗物质、暗能量和可能的可变光速。
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引用次数: 0
Circular Section Metal Wall Cut-Off Wave guide Accurate Calculation when used as a Standard Attenuator 作为标准衰减器使用时的精确计算
Pub Date : 2024-02-19 DOI: 10.34257/gjsfravol24is1pg1
Zhi-Xun Huang
In this paper, the mathematical analysis is carried out from many angles, so that the theoretical calculation problem of the circular metal wall cut-off wave guide used as a premary attenuation standard is completely solved, and the Chinese national standard of the attenuation quantity is established. The benchmark was completed by the Chinese National Institute of Metrology (NIM) with an accuracy of 5×10-5; Reach the international advanced level. The calculation accuracy provided in this paper is 10-6~10-7. This is a good example of a project combining theory and practice.
本文从多个角度进行了数学分析,从而彻底解决了作为预初衰减标准的圆形金属壁截止波导的理论计算问题,建立了衰减量的中国国家标准。该基准由中国计量科学研究院完成,精度为 5×10-5,达到国际先进水平。本文提供的计算精度为 10-6~10-7。这是一个理论与实践相结合项目的良好范例。
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引用次数: 0
On the Behavior of Certain Artificial Grasslands on the Slopes of the Central Balkan Mountain in Bulgaria 论保加利亚巴尔干山脉中部斜坡上某些人工草地的行为
Pub Date : 2024-01-16 DOI: 10.34257/gjsfrdvol23is5pg1
Dimitar Mitev
The research includes several studies on the behavior of some meadow grasses of local origin, which are the result of our selection. They are grown either as a monoculture or in a mixture on the slopes of the Central Balkan Mountain in Bulgaria with different exposure to the main directions of the world and a variety of soil gleying. The duration of the study is different. During the study period in the 10th-13th experimental years, a relative equality of productivity by habitat was established, with solid and weak soil gleying, respectively, on the low or high part of the slope, especially with eastern and southeastern exposure of the mountain slope. The principle of rhythmicity in Nature (increase or decrease in productivity in even or odd years), fixed in the ancient Bulgarian calendar, finds expression in the manifestations of cultivated grasslands.
这项研究包括对我们筛选出的一些当地草地草的行为进行研究。这些草在保加利亚巴尔干山脉中部的山坡上以单一栽培或混合栽培的方式生长,这些草的主要生长方向不同,土壤酸碱度也各异。研究的持续时间各不相同。在第 10-13 个实验年的研究期间,按生境划分的生产力相对平等,分别在山坡的低处或高处,特别是在山坡的东面和东南面,有坚实和薄弱的土壤沟壑。古代保加利亚历法中固定的自然节律原则(偶数年或奇数年生产力的增加或减少)在耕地草原的表现中得到了体现。
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引用次数: 0
Bioaccessibility of Principal Health-Promoting Compounds in Broccoli ‘Parthenon’ and Savoy Cabbage ‘Dama’ 西兰花 "帕特农 "和萨瓦甘蓝 "达玛 "中促进健康的主要化合物的生物可及性
Pub Date : 2024-01-04 DOI: 10.34257/gjsfrgvol23is2pg1
A. M. Fernández-León, David González- Gómez, M. C. Ayuso, M. J. Bernalte, M. Fernández-León
Currently there is a general concern among consumers to purchase goods increasingly healthy that not only provide the necessary nutrients, but also beneficial compounds with functional properties and antioxidant activity. Because of this, there has been an increased consumption of vegetables of the Brassicaceae family, especially brassicas. Thus, in this research work, two types of brassicas(broccoli and Savoy cabbage) were evaluated and it was found that broccoli had a higher content of functional compounds.But functional compounds are absorbed and used in different ways when they are digested, so besides knowing the content of these compounds in foods it is necessary to know their bioavailability, which will help meet the health properties of food to optimize the diet and to establish nutritional recommendations.
目前,消费者普遍希望购买的商品越来越健康,不仅能提供必要的营养成分,还能提供具有功能特性和抗氧化活性的有益化合物。因此,芸苔科蔬菜,尤其是芸苔属蔬菜的消费量有所增加。因此,在这项研究工作中,对两种芸苔属蔬菜(西兰花和萨瓦卷心菜)进行了评估,结果发现西兰花的功能性化合物含量更高。但是,功能性化合物在消化过程中的吸收和利用方式不同,因此,除了了解这些化合物在食物中的含量外,还有必要了解它们的生物利用率,这将有助于满足食物的健康特性,从而优化饮食和制定营养建议。
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引用次数: 0
Theme: A Brief Study and One Step Ahead of Plastic Sustainability 主题:塑料可持续性的简要研究和领先一步
Pub Date : 2023-10-28 DOI: 10.34257/gjsfrhvol23is4pg31
Azizul Haque
Plastic recycling is the reprocessing of plastic waste into new and useful products. When this job is performed correctly, can reduce dependence on landfill, conserve resources and protect the environment from plastic pollution and greenhouse gas emissions. Recycling is essential because almost all plastics are non-biodegradable and thus build-up in the environment, where it can cause harm. Presently, almost all recycling is performed by re-melting and reforming used plastic into new items; so-called mechanical recycling. In an alternative approach known as feedstock recycling, waste plastic is converted back into its starting chemicals, which can then be reprocessed back into fresh plastic. This whole work demonstrates the Turning Residual / Old plastics into eco-friendly alternatives, Synthetic oil, Gas or Fuel & Nanomaterials and chemical recycling as an environmental win-win situation and reinventing Recycling from rubbish to resources including live experiments/examples.
塑料回收是将塑料废物再加工成新的有用产品。如果这项工作做得正确,可以减少对垃圾填埋场的依赖,节约资源,保护环境免受塑料污染和温室气体排放的影响。回收利用之所以重要,是因为几乎所有塑料都是不可生物降解的,因此会在环境中堆积,造成危害。目前,几乎所有的回收都是通过将废旧塑料重新熔化和改造成新的物品来实现的,即所谓的机械回收。另一种方法是原料回收,将废塑料重新转化为起始化学品,然后再加工成新塑料。整部作品展示了将废旧塑料转化为生态友好型替代品、合成油、合成气或燃料以及纳米材料和化学回收利用的环保双赢局面,并通过现场实验/举例说明,重塑从垃圾到资源的回收利用。
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引用次数: 0
Noncommutative Quantum Gravity and Dark Matter 非交换量子引力与暗物质
Pub Date : 2023-07-11 DOI: 10.34257/gjsfravol23is4pg7
Gangrok Lee
According to the theory of noncommutative quantum gravity[1][2], we calculate the self-interaction of gravitons in momentum space. It shows that the self-interaction of gravitons makes the gravitational field deviate from the inverse square law. By calculating the metric, it can be obtained that the stronger the gravitational source, the stronger the energy momentum of the excited gravitons, and the stronger the gravitational effect produced by the self-interaction of gravitons. Maybe be it can be used to explain dark matter and the Pioneer anomaly.
根据非交换量子引力理论[1][2],我们计算了引力子在动量空间的自相互作用。结果表明,引力子的自相互作用使得引力场偏离平方反比定律。通过计算度量,可以得到引力源越强,受激引力子的能量动量就越大,引力子自相互作用产生的引力效应就越强。也许它可以用来解释暗物质和先驱者异常现象。
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引用次数: 0
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Global Journal of Science Frontier Research
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