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Online since: May 2012
Authors: Chun Cheng Xu, Hui Li Wang, Ting Ting Ning, Heng Lei, Tan Wang, Wei Hao
Whereas, the 50:50 and 0:100 treatments tended to decrease in lactic acid concentration after 14 days of increase. (3) For all treatments, the number of lactic acid bacteria (log10 cfu/g fresh material) varied from 7.8 to 9.2., while that of the 100:0 and 75:25 treatments kept the highest (P<0.05) level during almost all ensiling periods.
It is usually combined with grains and/or molasses to achieve good fermentation quality.
The numbers of lactic acid bacteria (LAB), yeast and mold in silage were counted by the plate count method [10].
Colonies were counted from the plates at appropriate dilutions and the number of colony forming units (cfu) was expressed per gram of fresh forage.
As shown in Fig. 3, for all treatments, the number of LAB (log10 cfu/g fresh material) varied from 7.8 to 9.2.
Online since: July 2004
Authors: C.T. Meneses, Marcelo A. Macêdo, J.C.A. Menezes, E.A.S. Junior
The vertical lines correspond to the standard LiMn2O4 powder from JCPDS card #35-0782. 0 1 2 3 4 5 6 * * * * # ## 1100 oC 1000 oC 900 oC 800 oC x=3 Intensity (a. u.) 2θ 10 20 30 40 50 60 70 * * **** * ** Journal Title and Volume Number (to be inserted by the publisher) 3 with x = 2.0, prepared at temperatures of 800, 900, 1000 and 1100 oC.
This comportment indicates that when the sintering temperatures increase, the quantity of the number of Mn3O4 phases increases too.
We can observe too, in Fig. 2, that the numbers of Mn3O4 phases increased for temperatures above 800 oC.
The successive stages of insertion and extraction can provoke the transformation of small grains with cubical symmetry for the tetragonal one [1,3,4].
Journal Title and Volume Number (to be inserted by the publisher) 5 with x = 2.0, the high initial capacity of charge and the presence of two platforms indicate the formation of the stoichiometric phase, however due existence of impure phases, happened a deficiency in the ciclability .
Online since: August 2006
Authors: Masahiro Kato, Katsumi Semba, Yukishige Maezawa, Mitsutoshi Hamamura, Ryosuke Kogo, Yoshikazu Hagiwara, Shin Takeda
However, the absorption properties are degraded due to the grain growth caused by cyclic use at the high CO2 emission temperatures in this reaction.
From the view-points of number of reactors, emission temperature, carrier gas for emission, and CO2 removal efficiency, CO2 production costs were compared for 6 candidate cases.
It was found that number of reactors and emission temperature had strong influence, but carrier gas for emission and CO2 removal efficiency had only a slight effect on the CO2 production cost.
Since this cost is competitive with the commercial CO2 cost, the proposed pre-combustion system is thought to be feasible. 0 20 40 60 80 100 550 600 650 700 750 Temperature / oC Methane conversion / % Catalyst Catalyst + Absorbent Pressure:200kPa SV:1625 /h S/C:4 0 20 40 60 80 100 0 10 20 30 40 50 Time / min CO2 removal efficiency / % Temperature:600o C Pressure:200kPa SV:1625 /h S/C:4 Fig. 2 Temperature dependence of methane conversion with and without absorbent Fig. 3 Time dependence of CO2 removal efficiency at 600 o C in the case of mixture of catalyst and absorbent 0 20 40 60 80 100 � � � � � �� �� Number of cycle / Methane conversion / % Temperature:600 oC Pressure:200kPa SV:1625 /h S/C:4 0 20 40 60 80 100 0 2 4 6 8 10 12 Number of cycle�/ CO2 removal efficiency�/�% Temperature:600o C Pressure:200kPa SV:1625 /h S/C:4 Fig. 4 Cyclic behavior of methane conversion at 600 o C in the case of mixture of catalyst and
Online since: November 2013
Authors: Lan Fen Lin, Feng Wang, Zhou Yang
Patent documents contain not only explicit but also implicit fine-grained information, apart from coarse-grained structure information.
Physical structure templates are used to obtain media structure content, i.e., figures, titles of figures, and number tokens in figures.
Choice of the concrete domain ontology is based on patent class numbers, i.e., international class numbers and category class numbers, which are obtained in previous structure analysis module.
Take a Chinese patent document named "elevator operation plate" (application number: 200820002091) as an example.
For example, application number is "200820002091"; abstract is "The utility model disclosed one kind of elevator operation plate
Online since: June 2008
Authors: Sidananda Sarma, A. Srinivasan
All alloys having single martensite phase at room temperature showed martensitic transformation at elevated temperature as well as a linear change of the characteristic martensitic transformation temperatures (As, Af, Ms and Mf) with the number of valence electron to atom ratio (e/a).
The c/a ratio showed an increase as the e/a ratio was increased (where e/a ratio is the ratio of the total number of valence electrons and the total number of atoms).
The increased crystallographic disorder results in decreased grain size in polycrystalline materials.
TC value show a tendency to shift to lower temperatures with the reduction in grain size Similar results have been reported in rapidly solidified Nd-Fe-B samples [19].
Online since: August 2012
Authors: Hideshi Miura, Yoshinori Itoh, Hyun Goo Kang
The lamellar like structure was caused by transformation from equiaxed beta grains during cooling.
The grain size of prior beta increased with increasing sintering temperature and was over 50 μm for the compacts sintered above 1423 K.
In this work, the number of irradiation times was increased to 20 or 40.
To control the energy density, higher scanning velocity was employed as the number of repetition times increases.
The number of laser irradiation was varied from 1 to 20 and 40.
Online since: August 2021
Authors: Aleksey Adamtsevich, Andrey Pustovgar, Liubov Adamtsevich
As it is possible to see in Figure 1, the number of new scientific publications that mention 3DCP technology has almost doubled annually from 2015 to the present.
A significant feature in this case can only be the lack of sufficient experience in operating printed objects in real conditions, which is necessary for the construction and verification of reliable calculation models for translating the number of exposure cycles into the real life.
When testing materials in the state of a dry mixture, moisture, the largest grain size of the aggregate, the content of the largest grains, and bulk density are determined. 3.
This trend is associated with the construction industry conservatism and extremely long innovation cycle due to the long service life of construction products and the large number of barriers in regulatory and technical regulation.
Considering high interest of the world scientific community in the topic of 3DCP, leading to the emergence of an increasing number of technological solutions in this area, it is very important to provide timely regulatory and technical support for the industrial development of 3Dprinting construction.
Online since: March 2016
Authors: Bai Cheng Liu, Yu Feng Shi, Rui Chen, Qing Yan Xu
Grain strengthening, solid solution strengthening and precipitation strengthening are the main three strengthening mechanisms for cast alloys and the contribution of precipitation strengthening to this kind alloy is uppermost.
For sand mold casting process, a continuous Gaussian nucleation distribution dn/d(ΔT), is used to describe the grain density evolution.
It can be seen that the number density of precipitates increases rapidly during the under aged stage until the number density reaches a maximum.
The following is the coarsening process and the dissolution of precipitates occurs, decreasing the number density to maintain the growth of other particles whose radius rp>r*.
In addition, from Fig.3(a), we can observe that the maximum number of precipitates under 1450C is much higher than that at 1600C.
Online since: September 2024
Authors: Ľuboslav Straka
This method of machining has a number of advantages, but it also has certain disadvantages.
Fe as a binder has the effect of inhibiting WC grain growth due to its high affinity for carbon during sintering, which promotes increased hardness of the material.
However, as the number of cuts increases when machining carbides through progressive EDM technology with a wire tool electrode, the overall efficiency decreases.
However, on the other hand, it should be emphasized that with the increasing number of cuts, the achieved quality of the machined surface in terms of roughness parameters Ra and Rz improves only to a minimal extent.
Żrodowski, Effects of a New Type of Grinding Wheel with Multi-Granular Abrasive Grains on Surface Topography Properties after Grinding of Inconel 625, Materials 16 (2023) 716
Online since: July 2020
Authors: Zhang Ying, Chowdhury Satyajit
A large number of scholars have found that the bending strength and cracking resistance of concrete can be improved after adding suitable fibers.
They are often developed very quickly from templated solutions, using coarse-grained authoring tools, and by the efforts of a multi-disciplinary team.
The sisal fiber is natural fiber is one of the most widely used types accounted for half of the production the total number of fibers.
The somatic chromosome number of 135147 and 149 three, is five times, the hybrid sterility.
The crystallization of sisal fiber in bast fiber in the genus low; and high fiber strength, fiber is mainly due to the high number, and the number of high fiber splitting leads to difficulties, as shown in Figure 1.
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