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Study on Browning Degree of Fresh-cut Purple Sweet Potato and its Inhibition during Storage Lu Gao*1, a, Keda Li2, b, Minpeng Zhu1,c and Yingchang Li3,d 1 College of Grain Science and Technology, Shenyang Normal University, Shenyang 110034, Liaoning Province, China 2 Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning Province 110847, China 3 Bohai Uniuersity, Jinzhou 121013, Liaoning Province, China aelegancegaolu@126.com, bkodar777@163.com, csynuzmp@163.com, dliyingchangsy@126.com Keywords: purple sweet potato . polyphenol oxidase . browning degree . composite inhibitor Abstract: The basic study on activity of polyphenol oxidase (PPO) from purple sweet potato (PSP) and its control method was mainly carried out by spectrophotometry.
Materials and Methods Chemicals and Reagents.
Journal of the Japanese Society for Horticultural Science, 2011, 1:103-112
Food material derived from purple sweet potato and having blood circulation-improving effect.

Introduction Nutrients are the material basis for the growth of phytoplankton, which directly affects the primary production of marine ecosystem [1, 2].
Thus, the investigation of Sanggou Bay was carried out in 2006-2007 to determine the distribution and variation features of nutrients, which could provide scientific basis for sustainable development of marine resources and aquaculture. 1 Materials and methods 1.1 Investigated area and stations The investigation was conducted among the six stations in Sanggou Bay (Fig. 1) in summer (July 30, 2006-July 31, 2006), winter (December 22, 2006), spring (April 13, 2007- April 14, 2007) and autumn (October 19, 2007). 1.2 Sample collection and items measurement Sample collection, processing, and determination of surface and bottom water were in accordance with standard methods of "Marine monitoring standards" (GB17378.3-2007 and GB17378.4-2007).
Lian, Annual variation of major nutrients and limiting factors in Laizhou Bay and Sanggou Bay, Journal of fishery science of China. 10(2003) 227-234
WARD, Nitrogen Uptake, Dissolved Organic Nitrogen Release, and New Production, Science. 265(1994) 1843-1846

Lebedev Physical Institute of the Russian Academy of Sciences, Leninskiy prosp., 53, Moscow, 119991, Russia ashiva@tpu.ru, bkazar@sci.lebedev.ru, c1991Sidko@mail.ru Keywords: Solution, cation, solvation, electric field, directed motion, separation Abstract.
The placement of a dielectric material into external electric field conditions the dielectric polarization, assuming that in any elementary volume , the total dipolar moment of molecules differs from zero.
Separation cell. 1) is potential electrode, 2) is solution inlet, 3) is outlet for enriched solution, 4) is outlet for depleted solution, 5) is internal cylinder for separation of solution flow, 6) are orifices (all the elements are made from insulating materials).
Acknowledgement This work was financially supported in the framework of the state task of the Ministry of Education and Science of the Russian Federation for 2014-2016 (Subject No. 1750).
International Journal of Research in Physical Chemistry. 2012; 2(4):40-44.

As wood production requires less energy and lower carbon emissions from the forestry and wood processing, it can be a low-energy building materials and suitable to substitute other materials such as concrete and steel [1].
In the last two decades, the production of a variety of wood based products for building applications has shown that woody materials can be used and enhanced features for construction materials [2,3].
ASM Science Journal, 5(1) (2011), 27–35
Construction and Building Materials, 41 (2013), 642–653
IBRACON Structures and Materials J., 1(2) (2008), 158 – 170.

Key Engineering Materials Vol. 367, 125-136
Materials Science Forum Vols. 604-605, 121-131
Journal of materials science 39:6561–6569
Sciences 52, 716-725
Key Engineering materials 504-506 487-492 [22] Reggiani B., Segatori A., Donati L., Tomesani L (2013) Prediction of charge welds in hollow profiles extrusion by FEM simulations and experimental validation.

To achieve the needed elastomeric properties, various elastomeric materials have been evaluated as the scaffolds to engineer these tissues.
Science. 249: Issue 4972: 992-1000. (1990)
Korea-Australia Rheology Journal.

[8] He et al: submitted to Journal of Hazardous Materials，B136 (2006) 502–512
[15] Guo et al: submitted to Science of the Total Environment 408 (2010) 3113–3117

This is mainly because: (1) as output variables, alumina concentration can not be directly measured, which must depend on long time interval sampling and analysis. (2) electrolytic aluminum production process cannot be described with mathematical analytical model, the factors which affect the electrolytic aluminum concentration are many, such as raw material composition, voltage and current, additives, aluminum quantity, anode movement, those have the uncertainty.
Cell is a complex industrial process system with multi-variable coupled, nonlinear, time-varying and large delay, due to its own between electrolytic cell material and the energy balance state, and many important parameters with non-continuous determination, which bring about enormous difficulties for the precise mathematical model's establishment.
Xing: Science in China,Ser.E, Vol. 32 (2002) No.6, pp.321-323.
Ling: Journal of Central South University of Technology, Vol. 34 (2003) No.5, pp.551-554.

However, there are always dewing problems in cooling conditions, which can never be avoided by improving the materials of the radiant panels [4].
Journal of Nanjing Normal University, 2009, 9(3) 39-41(In Chinese) [4] Qing He, Jinming Shen, Qingyun Shou, et al.
London Applied science publisher, 1980 [7] Xiang Huang.

The Simplified Method to Calculate Two-dimensional Heat Conduction Equations of Heating Slab LI Guo-jun1, a, LI Xiao-Ting1,b and CHEN Hai-Geng1,c 1 School of Materials & Metallurgy, Northeastern University, Shenyang 110004, China.
Journal of Ma-terials Processing Tech, Vol. 3(2006), p.356-362
Chemical Engineering Science, Vol.60(2005), p.4485-4495