Generally kinematic navigation cannot adapt for use in all environment,especially like the formation flying,UAV refuelin......

A reliability allocation method of satellite navigation system based on dynamic simulation is proposed in this paper.Fir......

characteristics of reliability,maintainability,supportability and multi-state about a navigation monitor network under r......

...

An evaluation system of hydrocarbon-bearing availability of fault traps was established based on the comprehensive analy......

Over the last twenty years,with the development of gene-driven therapies,numerous new drugs have entered clinical use.Ve......

The availability of a periodic inspection system under mixed maintenance policies is studied in this paper.To accommodat......

The city of Bouaké, the second biggest city of Côte d’Ivoire, experienced a water shortage in 2018 that lasted f......

　　The effects of applying lime materials and composts on the bioavailability of metals in the contaminated soils are c......

　　The applications of various soil conditioners have been used to reduce mobility and availability of heavy metals in ......

　　About 128 ha of agricultural soils on the Guandu Plain,Taipei,were characterized as highly contaminated with arsenic......

In this paper,we propose a new cellular automata model to simulate the railway traffic at station.Basedon NaSch model,t......

A study to identify potential early opportunities for CO_2 storage in coal bed has been performed. CO_2-ECBM can enhance......

<正> Over the past two decades, the study of green-plant and algal photosynthesis has been greatly facilitated by the av......

<正> Since the availability of T4 RNA ligase, a great progress has been made in fields of synthesis of polynueleotides. ......

A kind of uniform reliability index suitable for the code and phase observations is presented and used in reliability ev......

With the development of high-speed railways in China,more than 2000 high-speed trains will be put into use.Safety and ef......

Phenols motifs are used as common versatile synthons in organic synthesis due to their wide availability and low cost.Th......

A simple and efficient protocol for the deprotection of dithioacetal,1,3-dithianes and 1,3-dithiolanes has been develope......

Field test results showed that 24% Chlorfenapyr SC and 15% Indoxacarb EC had quick availability and long duration agains......

The Manas River Basin in Xinjiang Uygur autonomous region,similar to other arid regions,is facing water constraints whic......

Due to the complexity of influence factors in the nanoparticles adsorption method and the limitation of data samples, th......

文章难度★★★★☆词数:330建议阅读时间:7分钟Sprint extends its 4G device innovation leadonce again with the upcoming ava......

Measuring science is based on comparing articles to similar others.However,keyword-based groups of thematically similar ......

Nitrogen mineralization in forest soil was studied in laboratory by incubating undisturbed soil cores enclosed within PV......

To aid to reveal the basic physiological differences existing between evergreen and deciduous plants, so as to facilitat......

在中科院长白山生态系统定位站,从地表20cm处采集土壤样品,用两种不同形式的氮肥(NO3--N,NH4+-N和NH4NO3)处理土壤样品,用盆栽试验......

Considering the availability and derivation of Roscoe’s equation for absolute viscosity calcula-tion,the method to ado......

Discussions were made of the principle,method and computer program for drawing the pre-dominance diagrams of the bi-met......

The dynamic environments in riparian zones support a variety of life-history strategies, which constitute a fundamental ......

Altitude is a useful indicator to examine patterns of forest structure and species diversity in relation to environmenta......

【正】 On January 18th,Celanese Corporation(NYSE: CE),a global,hybrid chemicalcompany,announced that it has entered into......

【正】 Drastic investment growth promoted by downstream sectors The rapid demand growth and the drastic price rise of gl......

Songwon Industrial will increase global prices of antioxidants(up 7%-9%),UV stabilizers(6%),acid scavengers(10%-20%)as ......

Since the advent of lasers,high order multiphoton upconversion processes(HOMUPs)have been widely investigated throughout......

A vertical two-terminal silicon PNPN diode is presented for use in a high-density memory cell. The device design for hig......

Desert riparian plants experience high variability in water availability due to hydrological fluctuations. How riparian ......

Recently, considerable emphasis has been laid to the reliability based optimization model for water distribution system......

目的 评估陕西省公立医院国家基本药物制度的实施状况.方法 利用2008年版WHO-Health Action International(HAI)标准化调查方法,于......

This paper considers a two-unit same cold standby repairable system with a replaceable repair facility and delay repair ......

In soil, CaCO3 can reduce the availability of phosphorus in arid and semi-arid regions, thereby influencing plant growth......

In most of fault detection algorithms of distributed system, fault model is restricted to fault of process, and link fai......

According to the thickness and the configuration of sound-absorbing material,the cavity’s acoustical impedance and the ......

The macroscopic physical meaning of entropy is analyzed based on the exergy (availability) of a combined system (a close......

AIM:To clarify the effectiveness of plasma exchange bycomparing the mortality and morbidity before and afterthe interve......

Despite continuing advances in scientific knowledge about treatments to prevent mother-to-child(MTCT)of the human immune......

Quorum systems have been used to solve the problem of data consistency in distributed fault-tolerance systems. But when ......

Data availability is one of the most important properties of peer-to-peer (P2P) storage systems.Availability analysis mo......

Soil water is one of renewable water resources. Some properties of soil water concerning with its availability to plant......

The rice fields in China amount to 25.4 million hectares of which low yield paddy soils areabout 26％(Xu,1981;Xiao,1981).......