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Analysis and Application of the Landscape Expression on the Contrary Space Sequence in Historical Town Ping Yao 1, a, Li Yuan 1, b 1 School of Civil and Build Engineering, Southwest University of Science and Technology Mianyang, China, 621010 ayaoping_919@163.com, byuanli_919@163.com Keywords: the contrary space sequence, contrary space combination, historical town, landscape expression, space design, application Abstract.
Fig.2 The schematic diagram of Contrary Space Sequence and symbols in a historic town Fig.3 The schematic diagram of space of external environment in a town Outer (environment) Space (First Level Space): Here is the town peripheral environment and round to border or inner key position and the entrance space.
Point Exchangeability Space: They exchange line of sight through the opposite scenery in some key position between the inner exchangeability space and outer exchangeability space.
The contrary space sequence principle is different from some traditional small city plotted space that it is not simply research the material space with point and line, but with its own organic composition and rules of space that was order and correlation, and not exists alone.

Numerical Simulation of Indoor Airflow and Poison Gas Diffusion in Air-Conditioning Buildings with Large Space Peng Xiaoyonga, Wan Fenb, Xie Jingfangc ,Yao Lind, Liu Zhenhaoe School of Urban Construction, University of South China, Hengyang, Hunan, 421001, China apengxiaoyong@126.com, bjhwanfen@163.com, c123jingfang321@163.com, d110yaolin@163.com, e15211475883@163.com Key words: Large Space Buildings; Air Distribution; Poison Gas Diffusion; Numerical Simulation Abstract.
Considering the harm of the biochemical terror to person in buildings, American LBNL (Lawrence Berkeley National Lab) has done a lot of work on biochemical material properties, influence of internal security made by indoor and outdoor terrorist poison gas, and the numerical simulation and experimental research about poison gas diffusion and transmission in large space building [1-4].
According to the engineering practice, supply air volume chooses 40m3/(m2h), fresh air rate chooses 0.3.
Therefore, when the emergencies of poison gas happen in the public large space buildings installed the central air conditioning system, discovering poison gas and closing central air conditioning air system is the key to preventing and reducing poison gas harm in time.

SDSS can quickly provide accurate decision-making needed data, information and background materials, graphics, image and report for decision makers to help establish clear decision goal, modify the decision model and spatial compounding operation, provide a variety of options, and makes the evaluation and selection of various schemes.
Dynamic Simulation, Guide the City Drainage Engineering Construction and Forecast Flood of caused by Rainstorm.
With the further development of engineering knowledge, data mining and other related technology, SDSS technology will play an important role in spatial planning, management and decision making.
To Guide the City Municipal Engineering Construction and Improve the City Environment.
[8] Wenqi Shi,Weiming Shao and Jukang Lu: Computer Engineering and Applications,Vol.2 (2002) No.8,p.208.in Chinese

Investigation of A Software for Finite Element Model Updating of Bridges Based on Interface Technology between VC++ and MATLAB Yang Liu1,2,a, Zhan Lv1,b, Hong Zhang1,c 1School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, China, 150090 2Key Laboratory of Advanced Material and Intelligent Control Technology on Transportation safety, Ministry of Communication, China, 150090 aly7628@hit.edu.cn, b lvzhan168@126.com, c zhanghong9007@126.com Keywords: Bridges, Finite Element Model Updating, Interface Technology, VC++, MATLAB Abstract: To develop an effective software for finite element (FE) model updating of bridges, the interface technology between VC++ and MATLAB was investigated firstly, and then a software for updating FE model of bridges, named ‘Doctor for Bridges’ (version 1.0) was developed.
Large-scale engineering structures must be analyzed by using engineering FE program.
MATLAB is a numerical and graphics processing mathematical computing environment, which is launched for science and engineering technicians by MathWorks company.
Taking all above into consideration, if we can combine the advantages of VC++ and MATLAB, the efficiency of program development would be improved greatly, which may provide stronger technical support for scientific research and engineering technology. 3.2 Research On the Interface Technology between VC++ and MATLAB VC++ and MATLAB have mature interface technology, and API (Application Program Interface) realizes their hybrid programming.
Computer Engineering, 27(2001)23-24.

With the permission from the duty officer, the duty engineer took measures to slow down the main engine.
Care should be taken that complete rinsing is achieved to avoid adverse affect of chemicals on materials and lubrication.
Recently, how to keep the diesel engine running at part load for long time is a new topic to ship engineers.
When TC surge occurs, ship engineers shall comprehensively analyze the trouble to solve the problem.
Ship & Ocean Engineering, Jul. 2013, 42 (3): 106-109

It is a kind of engineering machinery working cycle with truck and mixing equipment.
Hybrid technology in the application of loader is still in the experimental stage, energy shortage and environmental pollution will accelerate the improvement and technology progress of key components for hybrid power equipment, meanwhile, so we can give better service to engineering construction field by the hybrid loader.
“Energy-saving technique for loader ZL50 base on constant pressure hydraulic system”, Journal of Jilin University (Engineering and Technology Edition) , vol.41-1(2011), p117-121
Engineering Machinery vol.41-11(2011), p6-11
“Simulation and Experimantal research energy recovery with hydraulic motor for hybrid driver excavator” Chinese Journal of mechanical engineering, vol.43-8(2007), p218-222

Key Engineering Materials. 753 (2017) 326-330. https://doi.org/10.4028/www.scientific.net/KEM.753.326
Luis Zerbino, Influence of Natural Coarse Aggregate Type on the Transport Properties of Recycled Concrete, Journal of Materials in Civil Engineering. 26 (6) (2013). https://doi.org/10.1061/(ASCE)MT.1943-5533.0000910
Muthukannan, Expanded Fly Ash Clay Aggregate a Sustainable Alternative Coarse Aggregate for Concrete, Journal of Materials and Engineering Structures. 5 (4) (2018) 347–353
Setunge, Constitutive model for confined high strength concrete subjected to cyclic loading, Journal of Materials in Civil Engineering. 16 (4) (2004) 297-305. https://doi.org/10.1061/(ASCE)0899-1561(2004)16:4(297)
Chang-Hoon, Compressive Behavior and Mechanical Characteristics and Their Application to Stress-Strain Relationship of Steel Fiber-Reinforced Reactive Powder Concrete, Advances in Materials Science and Engineering.

Modern Pre-stressed Engineering Construction (Second Edition) [M].
Civil Engineering Structural Test and Measurement [M].
[4] Shanxi Construction Engineering Bureau.
Journal of Civil Engineering, 2007.40 (2):58-63 (in chinese)
Pre-stressed Engineering Design and Construction Manual [M].

Currently, it is only applicable in the domain of metallic materials machining.
This threshold depends on grits size and materials.
In other application, with different materials, this value must be adapted.
Collingan: Journal of Manufacturing Science and Engineering Vol. 151 (1999), p. 647-655
Zhang: Journal of Materials Processing Technology Vol. 152 (2004), p. 333-338

Raw materials used in this study were collected from agarwood trees on Phu Quoc Island, Kien Giang province, Vietnam.
It can be seen that in the same extraction process or analysis method, different input materials also lead to different yields and qualities of essential oils [22].
Tien, Formulation of the lemongrass (Cymbopogon citratus) essential oil-based eco-friendly diffuse solution, IOP Conference Series: Materials Science and Engineering. 959 (2020) 012024
Long, Development of an aromatic wax product containing natural lemongrass (Cymbopogon citratus) essential oil, IOP Conference Series: Materials Science and Engineering. 736 (2020) 022066
Nguyen, Using soft computing approaches for orange (Citrus nobilis Lour. var. nobilis) oils extraction process, IOP Conference Series: Materials Science and Engineering. 479 (2019) 012015