Global Journal of Science Frontier Research最新文献_第7页

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

Global Journal of Science Frontier Research Pub Date : 2022-03-24 DOI: 10.34257/gjsfrfvol22is1pg1

G. Light

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

Global Journal of Science Frontier Research Pub Date : 2022-01-25 DOI: 10.34257/gjsfrhvol21is6pg1

Natthaprat Nantiwatkun, Chompoonuh K. Permpoonwiwat

引用次数: 0

Dark Matter and Real-Particle Field Theory 暗物质和实粒子场论

Global Journal of Science Frontier Research Pub Date : 2022-01-15 DOI: 10.34257/gjsfravol21is6pg27

Z.-C. Liang

{"title":"Dark Matter and Real-Particle Field Theory","authors":"Z.-C. Liang","doi":"10.34257/gjsfravol21is6pg27","DOIUrl":"https://doi.org/10.34257/gjsfravol21is6pg27","url":null,"abstract":"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.","PeriodicalId":12547,"journal":{"name":"Global Journal of Science Frontier Research","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78828452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Content and Derivation of Newton's Law 牛顿定律的内容和推导

Global Journal of Science Frontier Research Pub Date : 2022-01-15 DOI: 10.34257/gjsfravol21is6pg1

K. Kirakosyan

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

Global Journal of Science Frontier Research 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

{"title":"The First Study on Nuclear Polyhedrosis Virus Histopathological and Morphological Effects on the Strawberry Pest, Pentodon Algerinum (coleoptera: Scarabaeidae)","authors":"Samah, M.M. Abd El-Aziz, M. Rady, B. A. Merdan, Abd El-Salam A.M.E, H. Hussein, E. El-Saiedy","doi":"10.34257/ljrsvol21is6pg81","DOIUrl":"https://doi.org/10.34257/ljrsvol21is6pg81","url":null,"abstract":"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 inability\u0000to feed or to digest; the swelling, softness, liquefaction, and, lastly, death of the larva.","PeriodicalId":12547,"journal":{"name":"Global Journal of Science Frontier Research","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89498063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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

Global Journal of Science Frontier Research Pub Date : 2021-12-08 DOI: 10.34257/gjsfrdvol21is7pg39

R. Singh, I. P. Singh, V. Chaudhary, R. Singh, S. Pal

{"title":"Refinement in Cultivar of Indian Mustard for Higher Yield Under Thermal Climatic Condition of Uttar Pradesh","authors":"R. Singh, I. P. Singh, V. Chaudhary, R. Singh, S. Pal","doi":"10.34257/gjsfrdvol21is7pg39","DOIUrl":"https://doi.org/10.34257/gjsfrdvol21is7pg39","url":null,"abstract":"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.","PeriodicalId":12547,"journal":{"name":"Global Journal of Science Frontier Research","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83749500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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

Global Journal of Science Frontier Research Pub Date : 2021-12-08 DOI: 10.34257/gjsfrdvol21is7pg1

Vinsoun Millogo, M. Kere, O. Sanfo, T. O. Amoussou, T. Harrigan, R. Burdick, A. Srivastava

引用次数: 0

Fluid Gauge Theory 流体计理论

Global Journal of Science Frontier Research Pub Date : 2021-12-06 DOI: 10.34257/gjsfravol21is4pg113

T. Kambe

{"title":"Fluid Gauge Theory","authors":"T. Kambe","doi":"10.34257/gjsfravol21is4pg113","DOIUrl":"https://doi.org/10.34257/gjsfravol21is4pg113","url":null,"abstract":"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.","PeriodicalId":12547,"journal":{"name":"Global Journal of Science Frontier Research","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90228715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-Arbitrage Models of Financial Markets 金融市场的非套利模型

Global Journal of Science Frontier Research Pub Date : 2021-12-06 DOI: 10.34257/gjsfravol21is4pg67

N. Gonchar

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Force-Mediating Particle of Coupling of Spin Angular Momenta 自旋角动量耦合的力中介粒子

Global Journal of Science Frontier Research Pub Date : 2021-12-06 DOI: 10.34257/gjsfravol21is4pg49

Shaoxu Ren

引用次数: 0