To further decrease turnaround time of container vessels, synchronous operation of Quay Cranes (QCs), Yard Cranes (YCs) and Yard Truck (YTs) is mainly considered in multiple work lines condition and an integrated scheduling optimization model of YC and YT, aiming at minimize the makespan of loading operation,...

The casting with more than 70% thin-walled parts and minimum wall thickness of 2 mm was manufactured by vacuum differential pressure casting (VDPC). The shower gating system was used to ensure smooth filling of melt. The top risers were replaced by chills and the positions of the chills were optimized...

Urumqi is a typical oasis city in western China. A clear understanding of Urumqi's LUCC (Land-Use and Land-Cover Change) pattern has important guiding significance to environmental improvement and socio-economic sustainable development. This paper analyzed the spatiotemporal variations of LUCC in Urumqi...

The paper is intended to create a relatively simple and clear post-evaluation system for green campus. From the aspects of planning and ecology, energy and resources, environment and health, operation and management, education and promotion, by use of the analytic hierarchy process, the paper aims to...

In order to understanding of the fate and transport of TiO2 nanoparticles (Nps) in the water treatment process, this study focus on the particle surface characteristics and coagulation process at different anionic surfactant sodium dodecylbenzene sulfonate (SDBS) and cationic surfactant cetyltrimethylammonium...

The conventional ultra capacitor charger uses computer to monitor the ultra capacitor's state of charge(SOC) and adopts different strategy to charge the ultra capacitor. It makes the system expensive and the control method is also inconvenient. For the above problems, a non-microcomputer ultra capacitor...

In order to improve the utilization of the solar energy,a PV power optimizer was investigated in this paper. According to the distributed maximum power point(DMPP) architecture, each of the PV cells is equipped with a power optimizer. The power optimizer utilizing nonlinear adaptive control, which is...

Water source is a crucial condition for the development of a city. If the development level of a city is to be defined by water, we need to take into consideration not only the carry capacity of urban water resources under the pressure of the rapid development of social economy, but also water quality...

The uranium resources prospecting started in 1955,xx uranium deposits has been prospected,and 5 uranium ore fields has formed in southwest area. According to the regional uranium metallogenic characteristics and the class of tectonic units in control region,combining concentration degree of uranium deposits,uranium...

In order to broaden the operating temperature window of a Cu-based oxygen carrier (OC) in a chemical-looping combustion (CLC) process based on two fixed bed reactors, in which there exist great temperature distributions in radial and axial directions, through reducing its lower temperature limit, an...

The ultrasonic imaging method takes advantage of the technique of multichannel pulse echo, continuous plane monitoring scanning can be achieved in a single region, and no couplant is required. The experimental investigations on using the ultrasonic imaging method to detect the defects in the bottom joint...

New urbanization is an important engine of future economic development, how to use the powerful tax policy to facilitate this process, it is particularly important. In the analysis of the traditional external effects of urbanization development, based on in-depth analysis of the operating mechanism of...

Waste pineapple leaf residues were used to make microbiological fermented feed. 60 pigs with the same age in days and the weight of about 40kg, and they were divided into 4 groups (A, B, C and D) at random. Group A served as the control group. The addition amount of pineapple leaf residues in the experimental...

Biogas residues were treated by earthworm composting and aerobic composting. The changes in organic matter, rapidly available nitrogen, rapidly available phosphorus and rapidly available potassium of biogas residues after the treatment by the two composting methods were measured to study the influence...

In this study, sugarcane leaves were used as the raw material. Three methods (cutting, rolling & cutting, and hammering) were used to smash sugarcane leaves for dry fermentation. The influence of different smashing methods on biogas generation by dry fermentation of sugarcane leaves was analyzed from...

In order to boost the use value of biogas residue, main factors in dry fermentation were chosen to design an experiment to observe nutrient changes under different conditions before and after dry fermentation. The effects of manure-crop ratio, inoculum size, dry matter concentration and fermentation...

In recent years, "migratory birds" tourism pension industry has developed rapidly in Heilongjiang Province. Forest landscape, ice and snow culture and European style create a new development trend for the "migratory birds" industry and derive from new tourism pension Hot spots. On the basis of "migratory...

For the rapid development of economy, China has seen more than 200 million kW capacity of hydropower plant installed and more than 55 billion m3 reservoir storage formed since 1950s. As a result, over 25 million resettlers have been wholly or partially affected. To displace and settle so many people...

China and the United States are the top two carbon emitters worldwide, and bilateral trade between the two countries plays a vital role in driving their emissions. Defining the key drivers and sectors for the emissions embodied in China-US trade will provide opportunities for identifying avenues for...

In this paper, the R-function theory(RFT) is applied to solve the free vibration of slip clamped trapezoidal shallow spherical shell on Winkler foundation. Firstly the fundamental solution of the biharmonic operator, the boundary equation and the R-function are used to construct the quasi-Green's function....

The pot experiment was conducted to study the effects of intercropping with cadmium (Cd) tolerant plants (Arenaria serpyllifolia, Clinopodium confine, Ranunculus sieboldii and Plantago asiatica) on growth and Cd accumulation of Brassica chinensis. Compared with the monoculture, only intercropping with...

The pot experiment was conducted to study the effects of colchicines on cadmium (Cd) accumulation of post generation of Bidens pilosa. The 0.3 % of colchicines treating with 48 h did not change the number of chromosomes in two ecotypes (farmland ecotype and mining ecotype) of B. pilosa. The colchicines...

The pot experiment was conducted to study the effects of applying the hyperaccumulator plants (Bidens pilosa, Youngia erythrocarpa, Solanum photeinocarpum and Galinsoga parviflora) straw into soil on growth and cadmium (Cd) accumulation of Brassica chinensis. Compared with the control, applying hyperaccumulator...

To investigate the nitrate leaching risk of three red soils in subtropical China, this study conducted seven different manure treatments, namely, 0 (CK), 50 (F50), 100 (F100), 200 (F200), 400 (F400), 800 (F800), 1600 kg N hm-2 (F1600) with half of local conventional chemical fertilizers (N: 50 kg hm-2,...

Computational fluid dynamics (CFD) technology was used to conduct an analog simulation of air distribution on the first underground floor of one metro station. The temperature field distributions of the station hall and platform were obtained under two schemes, namely, fixed air volume and variable air...

The economical insulation thickness of the secondary pump lines in the subway system was calculated and analyzed based on the established optimization model of the secondary pump water system and the principle of lowest thermoeconomics cost. The main influencing parameters of the optimal insulation thickness...

The relative differences in the flow characteristics of the fuel within nozzle holes of diesel injectors significantly influences the atomization and combustion characteristics of diesel engines. The numerical simulation of cavitating flow developed fully in nozzle holes of a vertical four hole injector...

With the use of environmental statistics, this paper studied the industrial structure of China's smoke and dust emissions. Meanwhile, it analyzed the changes of waste gas emissions, smoke and dust emissions and smoke and dust emission concentration of the six key industries, namely, the power, steel,...

The nearly 30 years of natural resource utilization and ecological carrying capacity (ECC) of Baicheng region, Jilin province was calculated on the basis of ecological footprint (EF) method within different modes. The results showed that the growth rate of consumptive ecological footprint (EFC) was 48.76%...

Based on analyzing the climatic conditions of northern China, the physiological properties of bryophytes and the features of glass pumice, this article proved the feasibility of using bryophytes and glass pumice for northern landscaping, and put forward application methods of bryophytes and glass pumice...