Search results

To fulfill a particular objective to improve indoor air quality, fig.2 illustrates the engineering controls to eliminate airborne contaminants in isolation rooms[24]–[26].
Engineering Controls · Ventilation: - consists of three parts: · Filtration
Pasanen, “Indoor air-related symptoms and volatile organic compounds in materials and air in the hospital environment,” Int J Environ Health Res, vol. 29, no. 5, pp. 479–488, Sep. 2019, doi: 10.1080/09603123.2018.1550194
Yuan et al., “Thermal comfort in hospital buildings – A literature review,” Journal of Building Engineering, vol. 45.
Garcia, “Engineering Controls, Work Practices, and Exposure Monitoring for Occupational Exposures to Diacetyl and 2,3-Pentanedione.”

It applied to aerospace control engineering widely now.
According to the above ideas, when sneaking passage analysis to a thermal system, the key is to establish the equivalent rules between thermodynamic system and circuit system.
That might affect the closing of valves and cause damage. 7) Mechanical parts and pipe wear may affect the system runs normally 8) It is possible that corroded components in thermodynamic system maybe undergo chemical reaction with some certain fluids catalyzed by certain material 9) Several different kinds of fluid flowed over the same pipe may occur fluid mixed and happen some chemical reactions in some cases. 10) Scrap emitted from pipes may feedback into other pipelines 11) Each branch of various loops may not prevent sneak backflow 12) If valves in a system can realize different functions when they are in different operating mode, valves at the process of closing will produce unexpected actions. 13) Different operating mode has different pressure level, it may exceed predetermined range in some cases. 14) Each valve of system opens in the wrong order. 15) Multiple valves when they are opened or closed at the same time may cause undesirable effect. 16) The opening status of

Calcium Carbonate and Cellulose/Calcium Carbonate Composites: Synthesis, Characterization, and Biomedical Applications Ming-Guo Ma1,*, Shan Liu1, Lian-Hua Fu1 1Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
Cellulose could be used as feedstocks for producing biofuels, bio-based chemicals, and high value-added bio-based materials.
Kijima et al. studied the simultaneous synthesis and morphogenesis of polymer materials with hierarchical structures from nanoscopic to macroscopic scales using four biominerals and three biomimetic mesocrystal structures as the host materials or templates and polypyrrole, poly(3-hexylthiopehene), and silica as the precursors for the simultaneous syntheses and morphogenesis of polymer materials [10].
It is expected that CaCO3 and cellulose/CaCO3 nanocomposites are promising advanced materials, which will play an important role in the development of functional materials.
Engineer.

Impact of continuous Cucumis sativus L. cropping on the incidence of root diseases and bacterial community structure Yuansen Hu1,a, Cuixiang Li1,b and Likun Gu2,c 1Faculty of Bioengineering, Henan University of Technology, Zhengzhou, China 2College of Resource and Environment Science, Henan Institute of Engineering, Zhengzhou, China ahys308@126.com, blicuixiang2005@126.com, cgulikun1@163.com Keywords: Continuous cropping, Cucumber, Rhizosphere, Root disease, Bacterial community Abstract: To investigate the change of cucumber root disease incidence and bacterial community shift in monocultrue soil, we established 4 treatments of greenhouse-pot cucumber, each representing various monoculture times, and monitored the bacterial variation in rhizosphere/bulk soil and root disease index.
Work by van Elsas et al[12] also showed that agronomical practices significantly affected soil microbial diversity, and the microbial communities diversity could be a possible key to the capacity of a soil to suppress the soilborne potato pathogen R. solani AG3.
Materials and methods Soil, plant conditions and sampling The trial field was located at the Vegetable Experimental Center of Henan province, China.
A key characteristics of this genus was its ability to degrade a wide range of polycyclic aromatic hydrocarbons (PHAs), of which the intermediary degradation products were often regarded as important allelochemicals in cucumber exudates, and potentially stunted plant root growth[5,32].

Example Engineering Information.
For geologic ages, genetic types and engineering specifices, there are mainly three layers of the soil under the foundation: silty clay, silt and siltage, each material parameters of which are shown in Table 1.
Its gradation and engineering property are good.
Acknowledgements This work was financially supported by the Natural Science Foundation of China, NO.51078062 and the sub-project of the National Key Basic Research and Development Plan (973) of China, NO. 2011CB013605-2.
Energy Engineering, Vol.6(2005), p.34-37

Material scientists are continuously looking for more active materials that can perform better in various conditions.
MOCVD technique has been adopted for the synthesis of inorganic nano materials in powder as well as in film form.
Claridge (Eds.), Solar Engineering, The American Society of Mechanical Engineers. 1(1995) 415-420
Biswas, Sol- Gel Derived Optical materials, S.
Yamaguchi, Materials Science and Engineering B 108 (2004) 187-193

Experimental study on river channel’s formation and change process of on the surface of delta deposition Fei Liu1, a, Xiaofeng Zhang1, b 1State Key Laboratory of Water Resource and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, China alf512512@163.com, bzhangxfwuhee@263.net Keywords: Delta deposition, River pattern, Cross-section morphological, Bed gradient.
Lewin, J.[3] thought that the use of a single-stage stream power measure and bed material size alone is unlikely to achieve meandering or braiding discrimination.
Luchi, R.[6] researched based on existing field and experimental observations propose two different mechanisms(width-forced and curvature-forced) generate central topographical patterns in meanders, and from this analytical modelling framework model obtain these morphological features may represent key elements distinguishing between different meander behaviours as well as bridging between pure single-thread and transitional morphologies.
[8] Church, M., Bed material transport and the morphology of alluvial rivers.

Impact of humics and plants on microbial community and petroleum hydrocarbon degradation in contaminated soil Haihua Jiao1,2,3,a, Kai Wang1, Jiangang Pan4, Decai Jin2, Zhanbin Huang1,b and Zhihui Bai2,c 1 School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China 2 Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China 3 Changzhi University, Changzhi, Shanxi, 046011, China 4 Institute of Bioengineering & Technology, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia, 014010, China ajiaohaihua68@163.com, bzbhuang2003@163.com, czhbai@rcees.ac.cn Keywords: humics, microbial communities, phospholipid fatty acid, total petroleum hydrocarbon, bioremediation.
Materials and methods Experimental design.
Acknowledgments This work was supported by the “863“ Program of China (2013AA06A205), the Tianjin Hi-tech Support Program Key Projects (11ZCGYSF01400) and the Science and Technology Program of Beijing (D101105046410004).

Meanwhile, it shall also coordinate the exchanging of materials between the environment and the system.
Therefore, additional emergency engineering measures should be taken in the raw water system.
Engineering Science, 2001, (08). ( In Chinese) [4] ong Chun-sheng, Huang Qiang, Liu Jun-ping, Liu Han.
Journal of Systems Engineering, 2005, 20(6): 613-619. ( In Chinese) [13] Zhang Jun-yan.
Systems Engineering-theory & Practice, 2005, (03). ( In Chinese)

Ehigiator Department of Civil Engineering, Ambrose Alli University, Ekpoma, Nigeria ayuduehigiator @yahoo.com [Date received: 11 November 2010.
The soils at the lower end of the catena had soft plinthite at 15 to 20cm below the surface that hardened to lateritic concretionary materials on exposure by clearing and subsequent cultivation.
All trees and underbrush material were then burnt in- situ about 3 to 4 weeks after felling.
Transactions of the American Society of Agricultural Engineers 421, (1999) 89-97
International Journal of Engineering.