Airborne vector gravimetry is an advanced and efficient technology to determine high frequency information of earth’s gravity field in the future，and is a complement to ground gravimetry，marine gravimetry and satellite gravimetry. The principle of airborne vector gravimetry using SINS（strapdown inertial navigation system）/GNSS（global navigation satellite systems）is introduced in the paper，and then the data preprocessing，data reduction，band-limited topographical effect and downward continuation are discussed，as well as the geoid determination from airborne vector gravimetry. It provides the support for the development of airborne vector gravimetry in our country.
At present，Chinese aquaculture industry is in a new period of development.Speeding up the transformation of economic growth mode，following the way of energy-saving and emission reduction，environmental protection，quality and efficient，have become people’s common pursuit of the industry. In this paper，studies are under the support of the project named“Chinese flatfish industry technology system”based on nearly10years’work of flatfish closed recirculating aquaculture system. The contents of this paper refer to facing the huge demand of efficient healthy aquaculture industry in future，advocating the idea of aquatic animal welfare，introducing and cross merging advanced manufacturing technology，information technology，automatic control technology，modern biological technology and precision farming technology，so as to thoroughly build a digital，intelligent and accurate industrialized mode of aquaculture. The purpose of this paper is to provide theoretical and technical support to realize the localization，standardization and information in Chinese aquaculture，which will not only improve quality and safety level of aquacultural product，but also stimulate the formation of farming equipment manufacturing industry and intelligent control technology，so as to constantly advance development of high-end culture mode in China.
Both China and Brazil belong to BRICS countries. Their national fundamental situations are very similar. The offshore oil and gas development perspectives are all very broad.Chinese offshore resources are one third of total resources and one quarter of total production.More than90% Brazilian oil production is offshore and potential resources in deep water are very huge. The starting points of offshore oil and gas industry of two countries are similar，but the developing speeds are sharply different. China has grasped the shallow water offshore technologies，achieved important progress in deep water field. Brazil implemented continual research plans，the deep/ultra-deep water technologies are internationally advanced，the 2000m water depth technology has been grasped comprehensively and marching onto3000m period.China released two mid- long development plans，but there are no specific measurements yet. Brazil has related laws guaranteeing research and development investment，and adheres“local content”（LC）policy all the way and the supporting measurements are strong. Basing on analyzing and comparing offshore oil and gas development of the two countries，three specific suggestions are delivered.
In this paper，an innovative biomass- refining path called“selective- fractionation and economical-functionality”was proposed，based on the recognition of heterogeneity of biomass，which in the purpose to as far as possible retain the original features of macromolecules，activate and improve the biotransformation performance of components suitable for enzymatic hydrolysis，maximize the value of intermediate products. According to the association of raw material features，conversion processes and products requirement，diversified biomass refining paths have been established to prove the feasibility，reasonability and reliability of“selectivefractionation and economical- functionality”. In conclusion，“selective- fractionation and economical-functionality”of lignocellulosic materials would be the novel way to break through the tight economic and technological predicament of biomass economy.
HJ-1A/B satellites were developed independently by China，have operated well on-orbit for five years and acquired a large number of high-quality observation data. The realization of the observation data geometric precision correction is of great significance for macro and dynamic ecological environment monitoring. The paper analyzed the parameter characteristics of HJ-1satellite and geometric features of HJ-1satellite level2data（systematic geo-corrected data）. Based on this，the overall HJ-1multi- sensor geometric correction flow and charge-coupled device（CCD）automatic geometric precision correction method were designed.Actual operating data showed that the method could achieve good result for automatic geometric precision correction of HJ-1satellite data，automatic HJ-1CCD image geometric precision correction accuracy could be achieved within two pixels and automatic matching accuracy between the images of same satellite could be obtained less than one pixel.
Taking into account attitude stability，microwave scattermeter and microwave radiometer while rotating need to reduce torque ripple. Permanent-magnet motors using vector control technique are used to drive directly both sensors. Restraining cogging torque of motor， eliminating quantization error with fix angle timing，compensating dead time，these are presented. The control system and motor has been simulated by accurate model，results show that the torque ripple is reduced. The orbital attitude speed results are presented to validate this scheme.
With the increase of span length，the cable-stayed bridge tends to be a more slender structural system，and consequently the wind stability becomes an important problem for its design and construction. Three-dimensional nonlinear aerostatic and aerodynamic stability analysis of long-span bridges is used to investigate the aerostatic and aerodynamic stability of a super long- span cable- stayed bridge with main span of1400m，and the results are compared with those of a suspension bridge with the similar main span，and considering from the aspect of wind stability，the availability of using the cable- stayed bridge in super long- span bridges whose main span exceeds1000m is discussed. In addition，parametric analysis on the aerostatic and aerodynamic stability of super long-span cable-stayed bridges is conducted including the depthand width of the girder，structure style of the tower，the tower’s height-to-spanratio，the ratio of side span to main span，the auxiliary piers in the side span and the anchorage system of stay cables etc，and the key design parameters are pointed out，and also their reasonable values are proposed. The results show that as compared to the suspension bridge with the same main span，the cable- stayed bridge has greater structural stiffness，and becomes more stable under the static and dynamic wind action，and consequently becomes a favorable structural system for super long- span bridges whose main span exceeds1000m；the super long- span cable- stayed bridge becomes more aerostatically and aerodynamically stable under the cases that the girder depth is increased，the girder width is decreased，the inverse Y-shaped tower is used，the tower’s height is increased，the side span is shortened，the auxiliary piers are installed in side span and the stayed cables are partially earth-anchored.
To the sluice pier concrete，temperature control and crack prevention is a complex and multi- factor problem of system optimization related to temperature control measures and material parameters. This paper tries optimal temperature control measures with the known concrete material thermodynamics parameters，takes minimum values of the relationships between the sluice pier concrete structure’s internal/surface principal tensile stress duration curve and tensile strength growth curve as inputs and the sluice pier superficial heat preservation effect，pouring temperature，pipe cooling temperature and duration time as outputs，establishes the neural network model of the optimal temperature control measures，takes the uniform design principle to have the temperature control parameter combination，adopts the pipe cooling finite element method（FEM）to simulate and analyze the temperature field and creep stress field of the sluice pier concrete structure with cooling pipe，and gets samples to train network to describe the nonlinear relationship between the relationship's minimumvalueof the structure's principal tensile stress duration curve and tensile strength growth curve and different temperature control measures. Inputting the appropriate relationship's minimum value of structure’s the principal tensile stress duration curve and tensile strength growth curve to the trained network，it can automatically select the optimal temperature control measures. The example shows that the neural network model of the optimal temperature control measures is feasible.
In the ISO9000“input- output”process model，the concept of process quality is difficult to get the correct interpretation. From the point of view of the process's“white box” theory，this paper puts forward the scientific meaning of the concept of process quality and the process quality model by taking the basic operating unit of6M1E in the railway construction project for example. The basic operating unit system consists of the technological natural process，operation process and management process；the process quality of the basic operating unit system depends on the interrelation and interaction among those three sub- processes，and also subject to the impact of the external disturbance input factors. Finally，the cast- in- situ prestressed concrete continuous box girder construction process is utilized to elaborate the specific application of this theory in the quality management of the railway construction project.
Design load cases determines the external loads and operating environment of wind turbine. Due to existing design guidelines or standards don’t consider the impact of Tropical Cyclones（referred to as TC）or Typhoon，when wind turbine operating in TC areas，the destruction of the risk increases，manufacturing and maintenance costs increase. Using TC observed data，turbulence intensity，gust characteristics and wind direction characteristics were studied in TC landing process，a adaptive design method of wind turbine to typhoon conditions is suggested，including typhoon characteristics，typhoon design conditions，structural design，control strategy，operation and maintenance strategy. The typhoon design load is simulated based on the suggested method；The result shows that the suggested method of offshore wind turbine anti-typhoon design has a better economy and safety.
As we borrowed the wisdom from biological neural system，the characteristic of interference-proof in information transferring process has been carefully studied. Our study includes the response of electrical- interference- proof circuit in electromagnetic environment，by means of bionics redesign. By doing so，new principles，new technics and new ways are adopted to solve the unavoidable situations in traditional electromagnet protection design.Thecomplex bionic topological networks based on Boolean model were firstly built and the charactoristic of degeneracy were analyzed，then the bidirectional actions between degeneracy in networks and the robustness of functions were proved in order to fill the gap to deal with the need of interference-proof. Based on the creation of the neuron networks and the electrical synapses in character of plasticity，the effective of the distribution in the weight of synapse to the character of network self- restoration was studied afterwards so that the corresponding mechanism could be defined. In this way，the research laid a theoretical foundation for electromagnetic protection and the self-restoration.
In recent years，the asynchronous motor drive of indirect field- oriented control （IFOC）is widely used in high performance drive systems because of its high efficiency，high stable performance and power factor. In this paper，the IFOC technology is used to control the size of the speed of asynchronous motor，and the Z- source inverter is used，namely putting a pair of LC network in front of the inverter main circuit，to achieve the function of boost or buck the voltage and improve the efficiency of asynchronous motor by controlling the direct duty ratio.
Measurement and control system for intelligent car is one of the key technologies in the design of the car，sensitive and comprehensive measurement and control system can effectively improve the operational stability of intelligent car. It introduces the whole architecture of intelligent autonomous tracing car measurement and control system and the hardware and software design process. Take Freescale M9S12XS128microprocessor as the control core of the car，and infrared optical sensor to abtain path information. According to the path information and the current state of the car，the microprocessor control the drive motor and actuator by using pulse width modulation （PWM）method. Excellent control algorithm plays a key role for intelligent car tracing accuracy and stability. This paper uses fuzzy proportion-integration-differentiation（PID）control strategy to control direct current（DC）motor speed，using double P control algorithm to control the steering of the intelligent car steering gear. The test results show that the intelligent car runs fast and smoothly，and can trace independently and accurately.
This paper analyzed the main problems of remote islands on long- distance water supply from the mainland by shipping in typhoon-prone environment. The freshwater protection mode of self-sufficiency in situ was proposed. The features，complementarities，specific methods and technical means of water supply problems in situ of remote islands and reefs by two methods of rainwater harvesting and desalination by renewable energy power generation system were discussed. Research shows that the two specific fresh water supply modes of“the underground shallow lake rainwater harvesting system in coral sand beach”and“the reverse osmosis desalination systems powered directly by photovoltaic energy”have complementary and a high development potential，which are suitable for application in remote islands.
Water resources carrying capacity has a vital influence on the economic growth and social progress in a country or region，it’s a hotspot of research on water between science and system science. Taking Wuhan City for example，combine thewater resources subsystem，economic subsystem，social subsystem，the ecological environment subsystem and water pollution subsystem by using the system dynamic model，build the simulation model，then make comprehensive analysis of the obtained parameter values by osculation value method. In the end，received overall best solution in the process of implementation of“national economic and social development of wuhan city twelfth five-year program”.
The determinations of the rotation phase of quantum gates and mutation probability are the two main issues that restrict the efficiency of quantum genetic algorithm. This paper presents a quantum real coding genetic algorithm（QRGA）. QRGA used an adaptive means to adjust the direction and the size of the rotation angle of quantum rotation gate. In order to ensure the direction of evolution and population diversity，the mutation probability is guided based on the step of frog leaping algorithm which quantified by fuzzy logic. Comparative experimental results show that the algorithm can avoid falling into part optimal solution and astringe to the global optimum solution quickly，which has achieved good results in the running time and performance of the solution.