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Modeling Supply Chains by Critical Paths and Leontief Input-Output Table 关键路径与Leontief投入产出表的供应链建模
Pub Date : 2022-03-24 DOI: 10.34257/gjsfrfvol22is1pg1
G. Light
We formulate a supply-chain problem by:(1)casting it in the model of critical-path analysis as defined by predecessor/successor relations, and (2)allowing for mutual dependency among the activity nodes and applying Leontief’s input-output structure.
我们通过以下方式来阐述供应链问题:(1)将其置于由前任/后嗣关系定义的关键路径分析模型中;(2)允许活动节点之间的相互依赖,并应用Leontief的投入产出结构。
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引用次数: 0
An Economic Evaluation of Thailand Juvenile Vocational Training Centers 泰国青少年职业培训中心的经济评价
Pub Date : 2022-01-25 DOI: 10.34257/gjsfrhvol21is6pg1
Natthaprat Nantiwatkun, Chompoonuh K. Permpoonwiwat
Themain role of the Juvenile Vocational training center is to rehabilitate young offenders and support their social reintegration, including protecting communities from unsafe situations. Imprison offenders would be faced a real challenge at the time of their release unless efficient and effective programs are provided. The paper analyzed the cost per unit and examined the Economies of Scale of the 17 juvenile vocational training centers across Thailand. The analysis was based on a data set during 2016 -2019 from the Department of Juvenile Observation and Protection. The average cost per unit in the center was $168 per month or $2,018 annually. The results revealed that both small-and large-scale centers were inefficient. Incidentally, this cost per unit paid for an offender was lower than the national comparing average cost of living. Therefore, the means of increasing operational efficiency in Juvenile Vocational Training Center must be exerted to avoid the internal diseconomies of scale.
青少年职业培训中心的主要作用是改造少年犯,支持他们重新融入社会,包括保护社区免受不安全状况的影响。除非提供高效和有效的方案,否则监禁罪犯在释放时将面临真正的挑战。本文分析了泰国17个青少年职业培训中心的单位成本,并对其规模经济进行了考察。该分析基于2016年至2019年青少年观察和保护部门的数据集。该中心每单位的平均成本为每月168美元或每年2018美元。结果表明,小型和大型中心都是低效的。顺便说一句,为罪犯支付的单位成本低于全国比较平均生活成本。因此,必须努力提高青少年职业培训中心的运营效率,避免其内部的规模不经济。
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引用次数: 0
Dark Matter and Real-Particle Field Theory 暗物质和实粒子场论
Pub Date : 2022-01-15 DOI: 10.34257/gjsfravol21is6pg27
Z.-C. Liang
Based on real-particle field theory, this research demonstrates that dark matter comprises elastic electrons with a full cosmic background. In the real-particle field theory, real particles are elastic particles with both mass and volume. Real particles have three independent motion modes and two symmetrical interactions. The evolution of the real-particle field follows a set of Poisson equations. The theory shows that the electric and magnetic potentials represent electronic interactions of mass attraction and motion repulsion. The electromagnetic and dark-matter fields are essentially elastic electron fields. The laws of mechanics, gravitation, and electromagnetism of classical physics can be inferred from the real-particle field theory. In the electron field, electronic clusters are photons with the energy proportional to vibration frequency. The mechanic features of photons can be characterized by their volume, mass, and elasticity. Furthermore, the radiation of electronic clusters follows Planck’s law, which indicates that dark matter has a uniform density and no photonic current in the cosmic background. It is shown that matter essentially comprises discrete particles, and the matter field is merely a statistical convolution effect of a large number of particles. Consequently, dark matter particles contribute to the structural formation of all matter in the universe.
基于实粒子场理论,这项研究证明了暗物质由具有完整宇宙背景的弹性电子组成。在实粒子场论中,实粒子是具有质量和体积的弹性粒子。实粒子有三种独立的运动模式和两种对称的相互作用。实粒子场的演化遵循一组泊松方程。理论表明,电势和磁势表示质量吸引和运动排斥的电子相互作用。电磁场和暗物质场本质上是弹性电子场。经典物理学的力学、万有引力和电磁学定律可以从实粒子场论中推断出来。在电子场中,电子团簇是光子,其能量与振动频率成正比。光子的力学特性可以用它们的体积、质量和弹性来表征。此外,电子团簇的辐射遵循普朗克定律,这表明暗物质具有均匀的密度,在宇宙背景中没有光子电流。结果表明,物质本质上是由离散粒子组成的,物质场只是大量粒子的统计卷积效应。因此,暗物质粒子有助于宇宙中所有物质的结构形成。
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引用次数: 0
Content and Derivation of Newton's Law 牛顿定律的内容和推导
Pub Date : 2022-01-15 DOI: 10.34257/gjsfravol21is6pg1
K. Kirakosyan
Taking into account the peculiarities of interaction, the equations of motion are proposed, from which correspondences with the main parameters of both kinematics and dynamics are found. It is shown that it is the potential of interaction with the third-party partners that is the parameter, the presence, change, and redistribution of which the content of all three Newton's laws is interpreted.
考虑到相互作用的特殊性,建立了运动方程,得到了运动学和动力学主要参数的对应关系。研究表明,与第三方合作伙伴互动的潜力是参数、存在、变化和再分配,这三个牛顿定律的内容都是通过这些参数来解释的。
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引用次数: 0
The First Study on Nuclear Polyhedrosis Virus Histopathological and Morphological Effects on the Strawberry Pest, Pentodon Algerinum (coleoptera: Scarabaeidae) 核型多角体病毒对草莓害虫阿尔及利亚金甲的组织病理学和形态学影响的初步研究
Pub Date : 2021-12-18 DOI: 10.34257/ljrsvol21is6pg81
Samah, M.M. Abd El-Aziz, M. Rady, B. A. Merdan, Abd El-Salam A.M.E, H. Hussein, E. El-Saiedy
In Egypt, strawberry is an economically important crop that has recently been destroyed by Pentodon algerinum, a worldwide polyphagous destructive insect pest. This study aimed to distinguish, for the first time, the histopathological and morphological effects of Spodoptera littoralis Nuclear polyhedrosis virus (SpliNPV) and Pentodon algerinum Nuclear polyhedrosis virus (PNPV) on Pentodon algerinum third instar larvae to confirm their success as safe alternative control agents against this pest. The results showed that PNPV and SpliNPV affected Pentodon larvae by the same effects in causing the following: integument deformation and rupture; the destruction of the hypodermal layer resulting in the inhibition of the process of molting into the pupa stage, reducing pest survival; larva leg corrosion, which prevents its spreading; the rupture of fat bodies, which leads to the loss of stored energetic materials; the distortion of muscle sarcolemma and fibers resulting in weakness and softness; the tracheal cuticular layer destruction, which inhibits breathing; midgut rupture with cells detaching from each other; irregular cytoplasm distribution; the loss of the columnar shape of cells; the appearance of vacuoles between cells, which results in their inabilityto feed or to digest; the swelling, softness, liquefaction, and, lastly, death of the larva.
在埃及,草莓是一种重要的经济作物,最近被一种世界范围的多食性破坏性害虫阿尔及利亚蜈蚣(penttodon algerinum)所破坏。本研究旨在首次区分沿海夜蛾核型多角体病毒(SpliNPV)和阿尔及利亚斑蝽核型多角体病毒(PNPV)对阿尔及利亚斑蝽三龄幼虫的组织病理学和形态学影响,以证实其作为阿尔及利亚斑蝽三龄幼虫安全的替代防治剂的有效性。结果表明:PNPV和SpliNPV对五子鱼幼虫的影响相同:被膜变形和破裂;破坏下胚层,抑制蜕皮进入蛹期的过程,降低害虫存活率;幼虫腿被腐蚀,防止其蔓延;脂肪体破裂,导致储存的能量物质流失;肌肉肌膜和纤维的扭曲导致无力和柔软;气管角质层破坏,从而抑制呼吸;中肠破裂,细胞彼此分离;细胞质分布不规则;细胞柱状结构的丧失;细胞间出现液泡,导致细胞不能进食或消化;肿胀,柔软,液化,最后是幼虫的死亡。
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引用次数: 0
Refinement in Cultivar of Indian Mustard for Higher Yield Under Thermal Climatic Condition of Uttar Pradesh 北方邦高温气候条件下高产印度芥菜品种的改良
Pub Date : 2021-12-08 DOI: 10.34257/gjsfrdvol21is7pg39
R. Singh, I. P. Singh, V. Chaudhary, R. Singh, S. Pal
The refinement and assessment based field experiment was laid out during Rabi season of 2002 and 2003 on farmers fields at Mainpuri district under National Agricultural Technology Project, Zonal Agricultural Research Station, Mainpuri. The main objective was to find out suitable variety of Indian mustard for sowing in early period under thermal condition and replace the local Indian mustard cultivar ‘chhapka’. The nutrient status of pilot area was low. Five high yielding varieties i.e. Rohani, Varuna, Kanti, Urvarshi, Pusa Jai Kisan were tested with local cultivar Chhapka. The tested varieties of Indian mustard did not much differ in growth parameters but cv. Urvarshi displayed the superiority over all varieties. The lowest seed weight/plant (15.85 /plant) and test weight (4.30 gram) were weighed in local cultivar Chhapka, while highest seed weight/plant (18.00 g/plant) and test weight (4.95 gram) were recorded in cv. Urvarshi. The highest seed yield of 30.80 q/ha was noted under tested cultivar Urvarshi and lowest noted under Chaapka(15.70 q/ha). The other tested varieties yielded seed between these two limits. The highest net return of Rs. 99667/ha and BCR (1:3.56) were computed under Urvarshi cultivar. The lowest net return of Rs. 31717/ha and BCR (1:1.81) were computed under local cultivar Chhapka. The cultivar Urvarshi also increased net income of famers by 3.15 fold, which was higher over other tested varieties.
在2002年和2003年拉比季节,在迈因普里地区农业研究站国家农业技术项目下,在迈因普里地区的农民田间进行了基于精细化和评价的田间试验。主要目的是寻找适合在热条件下早期播种的印度芥菜品种,以取代当地的印度芥菜品种“chhapka”。试验区营养状况较差。将鲁哈尼、瓦鲁那、坎蒂、乌尔瓦什、普萨·贾伊·基桑等5个高产品种与当地品种查普卡进行了试验。试验品种间的生长参数差异不大,但cv值差异不大。乌瓦尔石在所有品种中表现出优越性。地方品种“查普卡”籽粒重/株最低(15.85 g/株),试验重最低(4.30 g/株),变异品种籽粒重最高(18.00 g/株),试验重最高(4.95 g/株)。Urvarshi。种子产量最高的品种为乌尔瓦什(30.80 q/ha),最低的品种为恰普卡(15.70 q/ha)。其他受试品种的种子产量介于这两个限度之间。净收益最高的品种为99667卢比/公顷,BCR为1:3.56。本地品种“查普卡”的最低净收益为31717卢比/公顷,BCR为1:1.81。该品种还使农民净收入增加了3.15倍,高于其他试验品种。
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引用次数: 0
Effects of Cereal-Legume Intercropping and Mulching on Maize (Zea Mays L.) Productivity in Dry Season using Drip Irrigation in South-Sudanian Climatic Zone of Burkina Faso 谷豆间作和覆盖对玉米(Zea Mays L.)的影响布基纳法索南苏丹气候带旱季使用滴灌的生产力
Pub Date : 2021-12-08 DOI: 10.34257/gjsfrdvol21is7pg1
Vinsoun Millogo, M. Kere, O. Sanfo, T. O. Amoussou, T. Harrigan, R. Burdick, A. Srivastava
The availability and sustainability of water in rural areas are significant challenges facing agricultural producers in the Sahelian zones. Maize-legume intercropping with a mulch cover for water conservation with drip irrigation is a promising production practice for conserving water, increasing productivity and improving soil health. A randomized complete block trial with 04 replications and 08 treatments was established in Sonsongona (11.2522°N, 4.4559°W), a village located west of Bobo-Dioulasso, Burkina Faso. Means separation by analysis of variance (ANOVA) was with RStudio 1.2.1335 software at the 5% threshold according to the Newman-Keuls test. The mulched treatments significantly affect soil moisture, maize growth, weed growth, and important maize yield attributes.
农村地区水的供应和可持续性是萨赫勒地区农业生产者面临的重大挑战。玉米-豆科作物覆盖保水滴灌间作是一种很有前途的节水、增产和改善土壤健康的生产方式。在布基纳法索Bobo-Dioulasso西部的Sonsongona村(11.2522°N, 4.4559°W)建立了一项随机完全区组试验,共有04个重复和08个治疗。根据Newman-Keuls检验,采用RStudio 1.2.1335软件在5%阈值处进行方差分析(ANOVA)。覆盖处理显著影响土壤水分、玉米生长、杂草生长和玉米重要产量属性。
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引用次数: 0
Fluid Gauge Theory 流体计理论
Pub Date : 2021-12-06 DOI: 10.34257/gjsfravol21is4pg113
T. Kambe
According to the general gauge principle, Fluid Gauge Theory is presented to cover a wider class of flow fields of a perfect fluid without internal energy dissipation under anisotropic stress field. Thus, the theory of fluid mechanics is extended to cover time dependent rotational flows under anisotropic stress field of a compressible perfect fluid, including turbulent flows. Eulerian fluid mechanics is characterized with isotropic pressure stress fields. The study is motivated from three observations. First one is experimental observations reporting large-scale structures coexisting with turbulent flow fields. This encourages a study of how such structures observed experimentally are possible in turbulent shear flows, Second one is a theoretical and mathematical observation: the ”General solution to Euler’s equation of motion” (found by Kambe in 2013) predicts a new set of four background-fields, existing in the linked 4d-spacetime. Third one is a physical query, ”what symmetry implies the current conservation law ?”. The latter two observations encourage a gauge-theoretic formulation by defining a differential one-form representing the interaction between the fluid-current field jμand a background field aμ.
根据一般的测量原理,提出了流体测量理论,以涵盖更广泛的在各向异性应力场下无内能耗散的完美流体流场。从而将流体力学理论扩展到可压缩完美流体各向异性应力场下随时间变化的旋转流动,包括湍流。欧拉流体力学具有各向同性压力应力场的特点。这项研究的动机来自三个方面的观察。第一个是实验观测,报道了大尺度结构与湍流流场共存。第二个是理论和数学观察:“欧拉运动方程的通解”(由Kambe在2013年发现)预测了一组新的四个背景场,存在于相关的4d时空中。第三个问题是一个物理问题,“什么样的对称性意味着当前的守恒定律?”后两个观测结果通过定义一种表示流场和背景场之间相互作用的微分一种形式,鼓励了一个量规理论公式。
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引用次数: 0
Non-Arbitrage Models of Financial Markets 金融市场的非套利模型
Pub Date : 2021-12-06 DOI: 10.34257/gjsfravol21is4pg67
N. Gonchar
In the first part of the paper, we construct the models of the complete non-arbitrage financial markets for a wide class of evolutions of risky assets.This construction is based on the observation that for a certain class of risky as set evolutions the martingale measure is invariant with respect to these evolutions. For such a financial market model the only martingale measure being equivalent to an initial measure is built. On such a financial market,formulas for the fair price of contingent liabilities are presented. A multi-parameter model of the financial market is proposed, the martingale measure of which does not depend on the parameters of the model of the evolution of risky assets and is the only one.
在本文的第一部分,我们构建了一类风险资产演化的完全无套利金融市场模型。这种构造是基于这样的观察,即对于某类有风险的集合演化,鞅测度相对于这些演化是不变的。对于这样的金融市场模型,建立了唯一等价于初始测度的鞅测度。在这样一个金融市场上,给出了或有负债公允价格的公式。提出了一个金融市场的多参数模型,该模型的鞅测度不依赖于风险资产演化模型的参数,是唯一的鞅测度。
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引用次数: 0
Force-Mediating Particle of Coupling of Spin Angular Momenta 自旋角动量耦合的力中介粒子
Pub Date : 2021-12-06 DOI: 10.34257/gjsfravol21is4pg49
Shaoxu Ren
In this paper, a hypothesis is proposed, that something similar to what happen to the puzzle of the energy losing in decay of neutron may also occur to the puzzle of the sum losing of the z-components of spin angular momenta in the synthetic course of spin coupling in Spin Topological Space. The former puzzle is related to hidden neutrial antineutrino that carries a small amount of energy away, the latter puzzle is related to hidden "constructive" zero-spin particle playing the role of a force-mediator that carries some amount of spin angular momentum, which just offsets the same amount of angular momentum losing in the formation of spin coupling.
本文提出了一个假设,即自旋拓扑空间中自旋耦合合成过程中自旋角动量z分量损失总和的问题也可能出现与中子衰变能量损失之谜类似的情况。前一个谜题与隐藏的中性反中微子有关,它携带了少量的能量,后一个谜题与隐藏的“建设性”零自旋粒子有关,它扮演了一个力介质的角色,携带了一定数量的自旋角动量,正好抵消了自旋耦合形成过程中损失的等量角动量。
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引用次数: 0
期刊
Global Journal of Science Frontier Research
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