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Online since: September 2014
Authors: Wen Ling Fan Li, Ting Wang, Ying Ping Ma, Jun Hua Zhang, Huai Bao Ma
General situation of Zhenshui Xiaolangdi Reservoir is a comprehensive utilization project and its development mission was definitely oriented to flood control (including ice prevention) and sedimentation reduction, and balanced water supply, irrigation and hydropower generation.
Therefore, the apparent sand bar came into being at Zhenshui estuary and the height was about 5.78m (a) (b) Fig. 2 Profile and cross section of Zhenshui Results of model test Introduction of test: In the research of operational mode of Xiaolangdi Reservoir for flood control and sedimentation reduction during later sediment retaining period, three groups of model test were conducted out.
Field observation data show that: there is little incoming water and sediment in Zhenshui, and basically there is no sediment.
When reservoir water level declines, if water level difference is not enough to influence the stability of the sand bar or the sand bar is not completely broken, then the isolated water body will come into being, the internal storage capacity of tributary will not be effectively used, and the efficiency of sedimentation reduction and even flood control will be affected.
P., and Wang Y.: Report on model test of the first operational mode of Xiaolangdi Reservoir for flood control and sedimentation reduction during later sediment retaining period (Yellow River Institute of Hydraulic Research, YRCC, China 2010, In Chinese ).
Online since: May 2014
Authors: Matteo Strano, Michele Monno, Stefano Tirelli, Elio Chiappini, Quirico Semeraro
The aim of this paper is to compare traditional and cryogenic turning of Ti6Al4V in a region of cutting parameters particularly relevant to the aerospace industry where no previous data are available.
Besides, the results showed that a small but significant reduction can be achieved for both the repulsion force and the coefficient of friction at the tool-workpiece interface.
In fact, recent research works prove that force reduction is greatest when using high feed rate and low depth of cut combinations [7], if keeping constant the cutting speed.
It is worth observing that, due to inherent difficulties in measuring the actual flow rate of the coolant, it is very difficult if not impossible to find data about this supposedly important parameter.
All the analysed cutting force data are referred to the first passes of each test when the tool wear is negligible, to ignore the typical increase in cutting forces that occurs when the insert is nearing the end of its life.
Online since: September 2014
Authors: Jian Zhou, Yuan Xue Song, Xin Xin Sha
There are 96 complex data after QPSK modulation.
Insert a pilot every 8 data, so the number will change from 96 to 106.
The cyclic prefix is the copy of the 32 data at the end of the stream, and the cyclic suffix is the copy of the 32 data in front of the stream.
To match the data rate with the RF sampling frequency, the data must be up-sampled.
Between every two bits, we insert one 0 so that the data can be 2 times up-sampled.
Online since: June 2011
Authors: Zhi Hong Wang, Xian Zheng Gong, Chen Li, Su Ping Cui, Yan Zheng, Bi Chuan Chi
Besides that, IPCC also published the methods and data necessary to estimate emissions from stationary combustion.
Methods are provided for the sectoral approach in three tiers based on: fuel combustion from national energy statistics and default emission factors, together with country-specific emission factors, and fuel statistics and data on combustion technologies applied together with technology-specific emission factors [5-8].
This included the use of models and facility level emission data where available.
With the data provided by LQDX cement plant, in May 2010 the clinker was 5560 ton per day in average, the results are as follows
(9) Compared to APP estimated average data which is 0.87 ton CO2 per ton clinker, this paper gave the result of 0.822 ton CO2 per ton clinker for LQDX cement plant.
Online since: June 2014
Authors: Ji Dong Liang, Wen Jing Du, Dong Qi Wang, Jing Duan
Then samples were taken to analyze the bacterial growth and COD reduction.
Component identification was carried out using the NIST 2002 mass spectral library and confirmed by comparison of retention time with authentic compounds and literature data.
Similar data can be generated using the parial 16 S rRNA sequence data set for Sphingobacterium sp.
The value of correlation coefficient (R2) was 0.9534, which demonstrated that the regression curve fitted experimental data well.
Further, as indicated by the data of the inoculated samples after 24h ~ 48h, LMWACs were gradually utilized by strain HY-H probably due to their relatively higher biodegradability.
Online since: September 2012
Authors: Zhu Guo Li, Bing Wen Wang, Li Zhu Feng
The CH must be awake to receive all data from member nodes in the cluster.
Once the CH receives all the data, it performs data aggregation to reduce the redundancy in the sensing data, i.e., combines into representative information.
To rapidly complete data transmission to the sink later, each CH should save a routing list of neighbored CHs, and data transmission via them to the sink must be efficient.
Conclusion Clustering protocol enables sensor nodes to reduce data packets by data aggregation in wireless sensor networks.
The wireless communication cost is decreased by the reduction of the data packets, and the clustering protocol improves the lifetime and the energy dissipation of the networks.
Online since: November 2016
Authors: Mangaka Matoetoe, Malefetsane Khesuoe, Fredrick Okumu
The large particle size is due to the fast reduction of Ag + by the Citrate.
Fast reduction is dominated by particle growth due to combination of the neighbouring particles.
All reported data is on chemically synthesized polymer composites.
On the cathodic side, the peaks are associated with the reduction transformations from PG to LE.
EDS-TEM data and the Smoother appearance of the Ag NPs tubes further showed that Ag NPs is incorporated in the PANI films.
Online since: October 2015
Authors: Zdenek Caha, Martin Sip, Terezie Vondrackova
The correction data are updated at a reference station in the interval of seconds to tens of seconds.
The accuracy of the correction data obtained from a reference station decreases with the growing distance.
The vehicle position data are obtained by GPS and transferred by GSM mobile technology to a server.
The data are then processed in the server as necessary.
The data of all three economic years were processed into a graph (see Fig. 3).
Online since: May 2011
Authors: Zhi Wu Yu, Li Song
The strain gauges and LVDTs were connected to a SCXI (Signal Conditioning eXtensions for Instrumentation) data acquisition system.
The corrosion of the main reinforcing bars resulted in a significant reduction in fatigue life.
As expected, this led to the significant reduction observed in the fatigue life.
A moderate reduction of yield load, ultimate load and a significant loss of ultimate strain for corroded steel bars under fatigue loading were observed.
Corrosion of the main reinforcing bars can results in a significant reduction fatigue life.
Online since: January 2010
Authors: Pablo Barreiro, Francisco Guitián
A method for production of porous zirconia layers on zircon has been presented previously [3], through the reduction of silica to SiO (g) at high temperatures and low oxygen pressure: ZrSiO4 + X · Y2O3 → ZrO2 + X · Y2O3 + SiO (g) + ½ O2 (g)
The most used process for zircon reduction in industrial practice is the carbothermal reduction.
The addition of stabilizing oxides leads to the formation of stabilized zirconia in both carbothermal and vacuum reduction [3,5].
It was also reported that the stabilizing oxides can also increase the volatilization rate in the carbothermal reduction [5].
These data suggest the formation of crystalline stabilized zirconia and a vitreous phase of silica and yttria after high temperature sintering of the samples containing Y2O3, the first step for its formation being the thermal decomposition of zircon (Eq. 2), which would be accelerated by yttria: ZrSiO4 → ZrO2 + SiO2
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