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X-ray CT Analysis of FNS Mortars Mixed with Converter Slag Fine Aggregate 转炉渣细骨料FNS砂浆x射线CT分析
Pub Date : 2021-03-30 DOI: 10.34257/GJSFRBVOL21IS1PG1
W. Cho, Ji Seok Kim
Aggregate is an indispensable component in concrete occupying nearly 65-80% of the total volume, whose effects on concrete performance are rarely studied [1]. Due to their inert and impervious characteristics, the durability of concrete is also influenced by the quality of aggregates. To meet the global demand for concrete in the future, it is becoming a more challenging task to find suitable alternatives to natural aggregate for preparing concrete [2]. Hence, the use of alternative sources for natural aggregates is becoming increasingly important.
骨料是混凝土中不可缺少的组成部分,约占混凝土总体积的65-80%,但骨料对混凝土性能的影响研究较少[10]。由于混凝土的惰性和抗渗特性,混凝土的耐久性也受到集料质量的影响。为了满足未来全球对混凝土的需求,寻找合适的天然骨料替代品来制备混凝土[2]正成为一项更具挑战性的任务。因此,利用天然集料的替代来源正变得越来越重要。
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引用次数: 0
Results of Application of Clinpro White Varnish® and Tooth Mousse® during the Enamel Mineral Maturation and its Focal Demineralization Clinpro®白漆和摩丝®在牙釉质矿物成熟和局部脱矿中的应用效果
Pub Date : 2021-03-08 DOI: 10.34257/GJSFRCVOL21IS1PG9
M. Markaryan, Izabella F. Vardanyan, M. Manrikyan, Gayane E. Manrikyan
According to some authors, the final maturation of tooth enamel occurs in 1- 2 years after eruption, and then for 2-3 years this process continues in just the fissure area. Full-fledged mineralization during this period is carried out due to the absorption of minerals from saliva, especially in respect to fluorine, calcium and phosphorus ions. As a result of the course of prophylactic treatment with Clin Pro White Varnish® and Tooth Mooth®, an activation of remineralization process was observed ended with the stabilization of the process or complete remineralization in the junior (6-7 years old) and the middle school group children (12-13 years old), which was confirmed by the obtained indices of the "DiagnodentKaVo" laser fluorometry test and the colorimetric test. The use of these preparations is a convenient and effective method in these age groups of children during the preventive treatment provision.
根据一些作者的说法,牙釉质的最终成熟发生在出牙后的1- 2年,然后这个过程只在裂缝区域持续2-3年。由于从唾液中吸收矿物质,特别是氟、钙和磷离子,在此期间进行了全面的矿化。通过使用Clin Pro White Varnish®和Tooth Mooth®进行预防性治疗,观察到在初中组(6-7岁)和中学组(12-13岁)儿童中,再矿化过程被激活,以过程稳定或完全再矿化结束,这一点通过“诊断卡沃”激光荧光测定和比色试验得到证实。在提供预防性治疗期间,使用这些制剂是这些年龄组儿童方便有效的方法。
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引用次数: 0
Effects of Long-Term Fertilisation and Weather on Soil Properties and Spring Barley Yield 长期施肥和气候对土壤性质及春大麦产量的影响
Pub Date : 2021-02-20 DOI: 10.34257/GJSFRDVOL21IS1PG35
V. Loide, L. Edesi
The purpose of the experiment was to determine long-term fertilization and the effects of weather on the soil properties and spring barley yields. A long-term field experiment—with crop rotations of potatoes (hemp oil from 2017), spring barley, spring barley with red clover (undersown), and red clover was established in 1960 Kuusiku, Estonia. Different barley varieties was used over the experimental period. With except the spring barley variety 'Anni', which was tested from 1995–2019.The experiment has three fertilizer treatments: the moderate dose of fertilization (NPK1),double NPK1 (NPK2), and moderate fertilization with farmyard manure (NPK1 + FYM). After harvest, the soil samples were collected from 0– 0.2 m of topsoil and 0.2–0.4 m of subsoil from each plot, using a soil drill.
试验的目的是确定长期施肥和天气对土壤性质和春大麦产量的影响。1960年,爱沙尼亚Kuusiku建立了一项长期的田间试验,包括马铃薯(2017年开始的大麻油)、春大麦、春大麦与红三叶草(下播)和红三叶草的轮作。试验期间采用了不同的大麦品种。除了春大麦品种“Anni”,该品种于1995年至2019年进行了测试。试验设3个施肥处理:中等剂量施肥(NPK1)、双倍施肥(NPK2)和农家肥适度施肥(NPK1 + FYM)。收获后,利用土壤钻取每个地块表层土壤0 - 0.2 m和底土0.2 - 0.4 m的土壤样品。
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引用次数: 0
A Note on Identifying Critical Activities in Project Scheduling via Linear Programming on Spreadsheets, with Incidental Pedagogical Remarks 通过电子表格上的线性规划识别项目调度中的关键活动的说明,附带教学注释
Pub Date : 2021-02-12 DOI: 10.34257/GJSFRFVOL21IS1PG1
G. Light
This note presents a speedy resolution of the critical activities for the critical path method (CPM) in project management by first running Excel Solver to obtain the minimized time of the completion of the project in question and next perturbing the required times of all the involved activities concomitantly to reveal the critical activities by observing the difference in the minimized times. We use extensions of decimal places for the classroom demonstration of the above-said perturbation, and consider additions of log(prime numbers) to the required times of all the activities to serve any large-scale professional analyses without using tailored-made software. As a separate incidental pedagogical note, we show a heuristic approach to constructing exactly three constraints to yield positive optimal values for all the three decision variables in linear programming.
本文介绍了项目管理中关键路径法(CPM)关键活动的快速解决方案,首先运行Excel求解器以获得完成相关项目的最短时间,然后干扰所有相关活动的所需时间,通过观察最短时间的差异来揭示关键活动。我们使用小数位的扩展来进行上述扰动的课堂演示,并考虑将所有活动所需时间的对数(素数)相加,以提供任何大规模的专业分析,而无需使用定制的软件。作为一个单独的附带教学说明,我们展示了一种启发式方法来构造恰好三个约束,以产生线性规划中所有三个决策变量的正最优值。
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引用次数: 1
Tectono-Sedimentary Evolution of the Uranium Deposits of the DASA Graben, Northern Niger 尼日尔北部DASA地堑铀矿床的构造-沉积演化
Pub Date : 2021-02-06 DOI: 10.34257/GJSFRHVOL21IS1PG37
Abdoulwahid Sani, M. Konaté, P. Wollenberg, A. Christophe
This study presents the structural evolution of the N70° trending Paleozoic-Mesozoic DASA graben, which is considered a sub-basin of the Tim Mersoï basin, and is located in northern Niger. The DASA graben is a uranium-rich trough discovered in recent exploration surveys.A tectono-sedimentary analysis of the DASA graben was implemented with a combined use of satellite imagery, field observations, borehole data analysis and available literature. This graben was affected from the Carboniferous to the Early Cretaceous by two major tectonic periods. The first period was an uplifting stage, which prevailed during the Carboniferous-Permian times and the second, ranging from the Triassic to the Early Cretaceous, corresponds to a rifting episode. The particularity of the DASA graben is that the sediments contain very high uranium grades. Lithological and tectonic factors controlled the emplacement of the uranium mineralization in the graben. The successive fracturing phases that affected the DASA graben were associated with a greater circulation of hydrothermal fluids and would have favoured higher grades of uranium mineralization.
研究了位于尼日尔北部的N70°走向的古生代-中生代DASA地堑的构造演化,该地堑被认为是Tim Mersoï盆地的一个次盆地。DASA地堑是在最近的勘探中发现的一个富铀槽。结合卫星图像、野外观测、钻孔数据分析和现有文献,对DASA地堑进行了构造-沉积分析。从石炭世到早白垩世,该地堑受两大构造时期的影响。第一个时期是隆起阶段,主要在石炭-二叠纪时期;第二个时期,从三叠纪到早白垩世,对应于裂谷期。DASA地堑的特殊性在于沉积物中含有非常高的铀品位。岩性和构造因素控制了地堑内铀矿化的侵位。影响DASA地堑的连续压裂阶段与更大的热液流体循环有关,并有利于更高等级的铀矿化。
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引用次数: 0
Climate Change, South Asia and Southeast Asian Region 气候变化,南亚和东南亚地区
Pub Date : 2021-01-15 DOI: 10.34257/GJSFRHVOL20IS6PG1
B. Kumar
It is well known that the climatic conditions of our earth have changed since its origin. In its early days environmental conditions were not suitable for life. However, with due course of time it has changed and origin of life took place. Scientists have found seven cycles of glacial advance and retreat during the last 650,000 years and also that the last ice age abruptly ended about 7,000 years ago. The phenomenon of climate change has many implications and immense effects on our environment. There are many factors such as emissions of greenhouse gases, deforestation, urbanization and industrialization which impact the climate. Some of the major consequences of climate change include impacts on sea level rise in coastal areas, impacts on forestry, agriculture and food productivity, life and property in coastal areas, marine life, wildlife habitat and natural ecosystem, biodiversity, glaciers, floods and human health. This paper is an attempt to understand the phenomenon of climate change, historical evidences of climate change, identify reasons of global warming and climate change and its consequences in the South Asia and, in its neighbouring regions.
众所周知,地球的气候条件自诞生以来已经发生了变化。早期的环境条件并不适合生命生存。然而,随着时间的推移,它发生了变化,生命的起源发生了。科学家们发现,在过去的65万年里,冰川经历了七次进退循环,最后一次冰河时代大约在7000年前突然结束。气候变化现象对我们的环境有许多影响和巨大影响。影响气候的因素有很多,如温室气体排放、森林砍伐、城市化和工业化。气候变化的一些主要后果包括对沿海地区海平面上升的影响,对林业、农业和粮食生产力、沿海地区生命和财产、海洋生物、野生动物栖息地和自然生态系统、生物多样性、冰川、洪水和人类健康的影响。本文试图理解气候变化现象、气候变化的历史证据、确定全球变暖和气候变化的原因及其对南亚及其邻近地区的影响。
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引用次数: 0
Bi-Directional Infinity Box 双向无限箱
Pub Date : 2021-01-05 DOI: 10.34257/GJSFRFVOL20IS9PG1
Jayant Hooda
The following article introduces a new concept of Bi-directional Box. The concept is explained by simultaneously calculating a new result: sum of all the natural multiples of each natural number up to infinity. The concept of Bi-directional Box helps to organise multiple infinite series and study different patterns in multiple infinite series. This Bi-directional box can be converted into a triangle by rearranging the already organised terms of the initial box. Similar to Pascal’s triangle, this box has many patterns and properties instilled in it too. Along with the initial standard box, infinite such boxes can be made depending upon the sequence/series in which the pattern is to be observed: an example with different sequences is provided at the end of the article.
下面的文章介绍了双向箱的新概念。这个概念是通过同时计算一个新的结果来解释的:每个自然数的所有自然倍数的总和,直到无穷大。双向盒的概念有助于组织多个无穷级数,研究多个无穷级数的不同规律。这个双向盒子可以转换成一个三角形,通过重新安排已经组织的初始盒子的条款。类似于帕斯卡的三角形,这个盒子也有许多模式和属性。除了初始标准盒之外,还可以根据观察模式的顺序/系列制作无限个这样的盒子:本文末尾提供了具有不同序列的示例。
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引用次数: 0
Reduced Symmetrizer Equation 简化对称方程
Pub Date : 2021-01-05 DOI: 10.34257/GJSFRFVOL20IS9PG15
R. Nair
This paper revisits the real symmetrizer equation in the literature to transform it into a reduced symmetrizer equation. This reduction can be accomplished by decomposing the symmetrizer of the equation. The reduced equation has a diagonal matrix as its symmetrizer and can be further decomposed into more such equations. These reduced equations are coexisting and synchronized with the original symmetrizer equation. Associated results concerning the reduced symmetrizer equation are introduced. A numerical algorithm for symmetrizer computation is developed based on these results. Typical symmetrizer problems in the literature are solved using the algorithm and the results are presented.
本文回顾了文献中的实对称方程,将其转化为约化对称方程。这种简化可以通过分解方程的对称器来完成。简化后的方程以对角矩阵为对称子,可以进一步分解为更多的对角矩阵对称子。这些简化方程与原对称器方程共存并同步。介绍了约化对称器方程的相关结果。在此基础上,提出了对称器计算的数值算法。用该算法解决了文献中典型的对称器问题,并给出了结果。
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引用次数: 0
Is there a Similiarity between Fibonacci Sequence and Euler’s Number with Respect to Quantum Perspective Model? 在量子透视模型方面,斐波那契数列和欧拉数有相似之处吗?
Pub Date : 2021-01-05 DOI: 10.34257/GJSFRFVOL20IS9PG35
Tahir Ölmez
According to Quantum Perspective Model, this article studies whether there is a link between the Euler’s numbers and the Fibonacci series. When the digits of the Euler’s number after the comma are converted from decimal(10) number base system to binary(2) number base system, it corresponds to the number in the Fibonacci series.(0,1,1,2,3,5,8,13,21,34,55...)[7].From this point of view, when the first hundred digits of the Euler’s numbers after the comma were calculated, the number "55" (ten times) in the Fibonacci series was found, in particular. Besides, the eleventh number in the Fibonacci series is also "55".In other words, the approximate unchanged numbers of the golden ratio numbers after the comma can be reached for the first time after dividing them from “55” to “34” (1,618). In sum, Euler’s numbers are not only attributed to the Fibonacci series in mathematics, but also attributed to the golden ratio in nature.
本文根据量子透视模型,研究欧拉数与斐波那契数列之间是否存在联系。当欧拉数的逗号后面的数字从十进制(10)数基制转换为二进制(2)数基制时,它对应于斐波那契数列中的数(0,1,1,1,2,3,5,8,13,21,34,55…)[7]。从这个角度来看,当计算欧拉数逗号之后的前100位数字时,特别发现了斐波那契数列中的数字“55”(10倍)。此外,斐波那契数列的第11个数字也是“55”。也就是说,用“55”除以“34”(1618),第一次可以得到逗号后的黄金分割数的大致不变数。综上所述,欧拉数不仅在数学上归功于斐波那契数列,在自然界中也归功于黄金比例。
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引用次数: 1
With Respect to Quantum Perspective Model, Can Euler Numbers be Related to Biochemistry? 关于量子透视模型,欧拉数是否与生物化学有关?
Pub Date : 2021-01-05 DOI: 10.34257/GJSFRFVOL20IS9PG7
Tahir Ölmez
This article researches whether there is a link between Euler’s numbers and genetic codes. At first, the sum of the numbers of the first fifteen "15" digits of Euler’s numbers after the comma are converted to bases in genetic codes. Secondly, after the comma, Euler’s numbers with eighteen fifteen groups are converted to nucleotide bases. So, the results obtained by this way are expressed as nucleotide bases ( A, T, C, G, U). (A)Adenine, (T)Thymine, (C)Cytosine, (G),Guanine, (U)Uracil. Thirdly, the search result is similar to ZEBRAFISH-DANIO RERIO, and even bat coronavirus after the NCBI (National Biotechnology Information Center) searched this sequence ”AUGUUGAUAUTAAUCATC”. Fourtly, the genetic codes of Zebrafish have been proven to be very similar to human genetic codes. Fifthly, multiple spawning of these fish species also means that Euler's numbers are increasing. In sum, the relationship between the Euler’s numbers in mathematical science and the atomic weights of atomic elements in genetic codes also shed lights on Biochemistry.
本文研究欧拉数与遗传密码之间是否存在联系。首先,欧拉数中逗号之后的前15位“15”的数字之和被转换成基因密码中的碱基。其次,在逗号之后,欧拉数的1815个基团被转换成核苷酸碱基。因此,通过这种方法得到的结果表示为核苷酸碱基(A, T, C, G, U)。(A)腺嘌呤,(T)胸腺嘧啶,(C)胞嘧啶,(G)鸟嘌呤,(U)尿嘧啶。第三,NCBI (National Biotechnology Information Center)检索该序列“AUGUUGAUAUTAAUCATC”后,检索结果与ZEBRAFISH-DANIO RERIO,甚至蝙蝠冠状病毒相似。第四,斑马鱼的遗传密码已被证明与人类的遗传密码非常相似。第五,这些鱼类的多次产卵也意味着欧拉数在增加。总之,数学科学中的欧拉数与遗传密码中原子元素的原子量之间的关系也为生物化学提供了启示。
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引用次数: 1
期刊
Global Journal of Science Frontier Research
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