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The Coupled Operational Systems:A Linear Optimisation Review

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Journal of Economic Science Research 2019年第2期2卷 40-49页

作者： Said el noshokaty el Esteshary Information Systems(EIS)

The purpose of this review is to summarise the existing literature on the operational systems as to explain the current state of understanding on the coupled operational *** review only considers the linear optimisation of the operational ***,the operational systems are classified as decoupled,tightly coupled,and loosely ***,the coupled operational systems were classified as systems of time-sensitive and time-insensitive operational cycle,systems employing one mix and different mixes of factors of production,and systems of single-linear,single-linear-fractional,and multi-linear *** new classifications extend the knowledge about the linear optimisation of the coupled operational systems and reveal new objective-improving models and new state-of-the-art methodologies never discussed *** areas affected by these extensions include product assembly lines,cooperative farming,gas/oil reservoir development,maintenance service throughout multiple facilities,construction via different locations,flights traffic control in aviation,game reserves,and tramp shipping in maritime cargo transport.

关键词： Operational systems Coupled systems Assembly lines Facility location Distributed systems Resource allocation Factors of production Linear optimisation

MФller Energy Complexes of Monopoles and Textures in General Relativity and Teleparallel Gravity

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Chinese Physics Letters 2007年第4期24卷 874-877页

作者： Melis Aygün Ihsan Yllmaz Department of Physics Art and Science Faculty Gnakkale Onsekiz Mart UniversityGanakkale 17020 Turkey Astrophysics Research Center Ganakkale Onsekiz Mart University Ganakkale 17020 Turkey

he energy problem of monopole and texture spacetimes is investigated in the context of two different approaches of gravity such as general relativity and teleparallel gravity. In this connection, firstly the energies for monopoles and textures are evaluated by using the Moiler energy momentum prescription in different approximations. It is obtained that energy distributions of Moiler definition give the same results for these topological defects （monopole and texture） in general relativity （GR） and teleparallel gravity （TG）. The results strengthen the importance of the Moller energy-momentum definitions in given spacetimes and the viewpoint of Lessner that Moller energy-momentum complex is a powerful concept for energy and momentum.

关键词： M?ller Energy Monopoles

PuMYB21/PuMYB54 coordinate to activate PuPLDβ1 transcription during peel browning of cold-stored“nanguo”pears

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Horticulture Research 2020年第1期7卷 860-875页

作者： Hua-Jun Sun man-Li Luo Xin Zhou Qian Zhou Yang-Yang Sun Wan-Ying Ge Miao-Miao Yao Shu-Juan Ji Department of Food Science Shenyang Agricultural University110866 ShenyangPeople’s Republic of China

Refrigeration is commonly used to extend the storage life of“nanguo”pears,but fruit in long-term refrigeration is prone to peel browning,which is related to membrane lipid *** determine the mechanism of membrane lipid degradation,we identified two R2R3-MYB transcription factors(TFs),PuMYB21 and PuMYB54,from“nanguo”pears,which were notably expressed in response to cold stress and during the peel-browning *** results from yeast one-hybrid,electrophoretic mobility shift,and transient expression assays indicated that both PuMYB21 and PuMYB54 directly bind to the promoter of PuPLDβ1(a key enzyme catalyzing the hydrolysis of membrane phospholipids)and activate its expression,which probably enhances the degradation of membrane phospholipids and eventually results in peel ***,the overexpression of PuMYB21 and PuMYB54 can greatly activate the transcription of endogenous PuPLDβ1 in both“nanguo”pear fruits and calli,and their silencing can inhibit its ***,yeast two-hybrid,bimolecular fluorescence complementation,and pull-down assays verified that PuMYB21 interacts with PuMYB54 to enhance the expression of PuPLDβ*** summary,we demonstrate that PuMYB21 and PuMYB54 may have roles in membrane lipid metabolism by directly binding to the downstream structural gene PuPLDβ1 during the low temperature-induced peel browning of“nanguo”pears.

关键词： process coordinate eventually

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Tra la Mondo

世界 2000年第Z2期 7-8页

作者： el MOnATO

Ankorau ne kor(e)an dankon Logas c. 1.8 milionoj da eksterlandanoj en Japanio kun logantaro de 125 milionoj. el tiuj eksterlandanoj c. 700 000 logas konstante en Japanio. Pridiskutate estas ekde la 80aj jaroj, cu permesi al ili vocdoni. Plejparte temas pri koreoj, kies prezidanto Kim Dae Jung, vizitante Japanion en 1998, postulis por japanaj koreoj vocdonrajton. En Japanio estas ses politikaj partioj, el

关键词： Pro La Tra la Mondo

ZnO/ZnS heterostructure in n-doped porous carbon for anchoring-diffusion-conversion of polysulfides for high-performance lithium-sulfur batteries

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Rare Metals 2024年第8期43卷 3661-3676页

作者： Fei Wang Rong-Wei Huang Wen-Chang Han Chun-man Yang Wen-Hao Yang Peng Dong Chao-Ling Wu Yi-Yong Zhang Xue Li Ying-Jie Zhang national Local Joint Engineering Research Center for LithiumIon Batteries and Materials Preparation Technology Key Laboratory of Advanced Batteries Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093China Engineering Research Center of Alternative Energy Materials and Devices Sichuan UniversityMinistry of EducationChengdu 610065China

The shuttle effect of polysulfides is one of the key factors hindering the commercialization of lithiumsulfur batteries(LSBs).Owing to their high conductivity and advantageous structure,heterostructures can be used in sulfur fixation and catalysis of *** this study,a flower-shaped ZnO/ZnS heterostructure on a nitrogendoped porous carbon(nPC) sulfur host was *** ZnO/ZnS heterostructure regulates the electronic structure of the material and exhibits higher metal-like ***,the ZnO/ZnS heterostructure combines the strong adsorption property of ZnO and the high catalytic ability of ZnS to realize the anchoring-diffusionconversion of lithium poly sulfides(LiPSs).Results reveal that the developed ZnO/ZnS@nPC/S cathode has excellent electrochemical performance in LSBs,achieving a high discharge specific capacity of 1365.3 mAh·g^(-1) at 0.1C and excellent rate capability(719 mAh·g^(-1) at 2C;the capacity decay rate is only 0.042% per cycle after 1000 cycles).Even under a high sulfur loading-E/S(electrolyte/sulfur)ratio of 5.1 mg·cm^(-2)-6 μl·mg^(-1),a high specific capacity of 723.7 mAh·g^(-1) is maintained after 60 *** study provides a new strategy for a multifunctional sulfur host that can effectively alleviate the shuttle effect of LiPSs and improve the utilization of sulfur active substances.

关键词： ZnO/ZnS heterostructure Lithium-sulfur batteries Density functional theory Anchor Conversion

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Tra la Mondo

世界 2000年第Z3期 4-5页

作者： el MOnATO

novtipa Prezidanto Per nuraj cent mil vocoj Finnlando akiris sian unuan prezidantinon. La 6an de februaro, en la dua balotado de la elektoj, la nuna ministrino pri eksterlandaj aferoj, Tarja Halonen,56-jara, venkis s-... 详细信息

关键词：奥地利 Tra la Mondo La

Relationships between Hydraulic Parameters of the nubian Aquifer and Wells in el Shab Area, South Western Desert, Egypt (A Case Study)

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International Journal of Geosciences 2012年第5期3卷 1107-1119页

作者： Maged el Osta Geology Department Faculty of Science Damanhour University Damanhour Egypt

For proper water management in the new reclaimed areas, hydraulic parameters of both aquifer and wells related to transmissivity, specific capacity, well loss, formation loss, and water entrance velocity, as well as the relationship between these parameters are the main target after construction of production wells. In el Shab area, the nubian Sandstone aquifer has a large range of transmissivity (from 483.12 to 1489.24 m2/day) and, also, specific capacity (from 203 to 486.32 m2/day). Relationship of specific capacity and transmissivity is constructed and the established empirical equations can be used to predict the transmissivity of the nubian aquifer in all new proposed sites for well drilling at which the specific capacity measured without performing pumping tests. On the other hand, the drilled wells in el Shab area exhibit relatively high well losses (25%). The causes for high well losses (entrance velocity (Vn) through water well screen and the distance from the point of water entrance in the well to the point of intake in the pump) are discussed and the relationships are constructed, which seem a positive linear correlation. Relationships between well losses constant for 30 wells with transmissivity and specific capacity, are constructed. These relationships are useful for estimating hydraulic characteristics that are needed for the designs of wells and well fields and for preliminary water-resources management.

关键词： nubian Sandstone Aquifer Transmissivity Specific Capacity Well Loss Entrance Velocity Well Efficiency

new scope on the relationship between rotifers and Biom phalaria alexandrina snails

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Asian Pacific Journal of Tropical Biomedicine 2013年第8期3卷 595-603页

作者： Shereen Farouk Mossallam Eglal Ibrahim Amer Iman Fathy Abou-el-naga Medical Parasitology Department Faculty of MedicineAlexandria UniversityEgypt

Objective:To investigate the effect of rotifer internalization into snail tissue on the development of ***:Susceptible laboratory-bred Biomphalaria alexandrina(***)snails were exposed to lab-maintained rotifers;Philodinaspp.,two weeks before and after being infected with Schistosoma mansoni(***)*** consequent histopathological impact on snail tissues and cercarial biology were investigated before and after emergence from ***:Contamination of *** with philodina,two weeks before miracidial exposure,was found to hinder the preliminary development of *** inside the snail ***,when snails were contaminated with rotifers two weeks post miracidial exposure;growth of already established cercariae was found to be *** consequent influence of internalized rotifers within the snail tissue was clearly reflected on cercarial em ergence,activity and infectivity along the four weeks duration of *** the present study,comparison of snail histopathological findings and altered cercarial biology observed between the experimental and control groups indicated that the rotifers may have affected the levels of snail's energy reservoirs,which eventually was found to have had an adverse impacton reproduction,growth and survival of the parasite within the snail host,coupled with its performance outside the ***:In future biological control strategies of schistosomiasis,ritifers should be considered as a parasitic scourge of humanity.

关键词： Biomphalaria alexandrina Schistosoma mansoni Rotifers Snail histopathology Cercarial biology

Plumbing System of Hunga Tonga Hunga Ha'apai Volcano

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Journal of Earth Science 2023年第3期34卷 706-716页

作者： Román Alvarez Miguel Camacho Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas(IIMAS) Universidad Nacional Autónoma de MéxicoCoyoacán CDMX 04510Mexico Posgrado en Ciencias de la Tierra Universidad Nacional Autónoma de MéxicoCoyoacán CDMX 04510Mexico

The Hunga Tonga Hunga Ha’apai submarine volcano has experienced repeated eruptions in the latest *** recent one,in January 2022,released an enormous amount of energy inducing global perturbations,as tsunamis and atmospheric *** structure of the volcano is poorly understood,especially its internal ***-seated magmatic connections are difficult to define or *** use a high-resolution gravity data set obtained via satellite to calculate the Bouguer anomaly over its structure,to perform a preliminary exploration of its *** 3D gravity inversions,we find a complex plumbing system with various exhaust trajectories and multiple surface pockets of low-density material within the volcanic edifice;some appear to be associated with ring *** is in line with the report of the 2009 eruption,described as beginning from multiple *** found no signs of a magma chamber within 6 km depth,although several volcanic conduits are identified from such depth to the *** variations occur within a plumbing conduit or may vary from one conduit to another in the same *** models yield quantitative estimates for areas of magma-water interaction,constituting a baseline to compare with structural changes to be induced in future eruptions.

关键词： Hunga Tonga Hunga Ha'apai satellite gravity data 3D inversions volcano Tofua Island