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Singh S.P.,Sub Center | Singh S.P.,Directorate of Research on Women in Agriculture ICAR | Singh S.,CIAE | Singh P.,MPUAT
Applied Ergonomics | Year: 2012

A hand operated maize dehusker-sheller to be operated by farm women was designed and developed to dehusk and shell the maize cobs using ergonomics (anthropometric, strength and physiological workload). Axial-flow maize dehusker-sheller with 540 mm cylinder length and 380 mm diameter required 3.03 N-m torque on cylinder shaft while operating at 5.6 m s-1 peripheral speed and 100 kg h-1 feed rate by feeding cob one by one. This torque was 30% of isometric torque obtained at front position of handle (greatest distance) with lowest crank length. The heart rate of subject while operating the maize dehusker-sheller at 54 rpm (5.6 m s-1) was 142 beats min-1. The output of 60 kg h-1 was obtained at the feed rate of 80 kg h-1. Two subjects can operate the machine for an hour with a rest pause of 15 min by swapping the operation. © 2011 Elsevier Ltd and The Ergonomics Society.

Van Giai N.,University Paris - Sud | Khan E.,University Paris - Sud | Ma Z.,CIAE
EPJ Web of Conferences | Year: 2012

The microscopic structure of the inner crust of neutron stars is generally studied in the framework of local energy density functionals (EDF). Here, we discuss other possible frameworks, either based on non-relativistic EDF which are fully non-local, or covariant EDF of the relativistic mean field (RMF) type. These other approaches must be more widely used in the context of neutron stars in order to gain confidence in predicting general trends. © Owned by the authors 2012.

Tiwari P.S.,CIAE | Gite L.P.,All India Coordinated Research Project on Ergonomics and Safety in Agriculture | Majumder J.,All India Coordinated Research Project on Ergonomics and Safety in Agriculture | Pharade S.C.,All India Coordinated Research Project on Ergonomics and Safety in Agriculture | Singh V.V.,CIAE
International Journal of Industrial Ergonomics | Year: 2010

An agricultural worker has to exert push/pull force in the horizontal plane while operating many farm tools and equipment. However, very little data are available on push/pull strength of agricultural workers. A study was therefore carried out to collect these data on male as well as female agricultural workers. A strength measurement setup developed at CIAE, Bhopal was used for the purpose. Data were collected on 920 subjects from different parts of Madhya Pradesh State in central India of which 604 were male and 316 were female agricultural workers. The mean age, stature and weight of the male subjects were 29.6 ± 8.9 years, 1646 ± 59 mm and 51.4 ± 6.5 kg whereas for female subjects the values were 32.6 ± 8.1 years, 1512 ± 52 mm and 45.3 ± 7.2 kg, respectively. The isometric push/pull strength of male subjects was higher than that of female subjects. The mean values for isometric push and pull strength in a standing posture with both hands (in the horizontal plane) were 253.8 ± 52.8 N and 234.2 ± 43.0 N, respectively for male subjects and 183.1 ± 35.6 N and 185.1 ± 30.8 N, respectively for female subjects. Weight of the subjects indicated a positive correlation with isometric push/pull strength. The 5th percentile push and pull strength values were 167.0 N and 163.5 N, respectively for male subjects and 124.4 N and 134.4 N, respectively for female subjects. These values can be used to set limits in the design of manually operated farm tools and equipment as well as for manual materials handling activities involving pushing/pulling, depending on the frequency of movement. Relevance to industry: The strength values and design criteria presented in this paper may be used for setting limits for design of manually operated tools and equipment involving push/pull activities in agriculture as well as in other industrial jobs. © 2009 Elsevier B.V. All rights reserved.

Lv X.-X.,CIAE | Liu H.-R.,NIM | Chen X.-L.,CIAE | Liang J.-C.,NIM
Hedianzixue Yu Tance Jishu/Nuclear Electronics and Detection Technology | Year: 2015

The paper introduces the comparative measurements of CNNC Radiation Metrology and Measurement Center and RI_CN-NIM for tritiated water activity. The structure and electronics circuit of liquid scintillation TDCR devices are described in detail. Comparison methods, results and uncertainty assessment are described. The experiment results verify the consistency of two systems. The activity determined with TDCR by two laboratories is in agreement within the range of 0.24%. © 2015, Editorial Board of Nuclear Electronics & Detection Tech. All right reserved.

Veenadhari S.,MGCGV | Misra B.,MGCGV | Singh C.D.,CIAE
2014 International Conference on Computer Communication and Informatics: Ushering in Technologies of Tomorrow, Today, ICCCI 2014 | Year: 2014

With the impact of climate change in India, majority of the agricultural crops are being badly affected interms of their performance over a period of last two decades. Predicting the crop yield well ahead of its harvest would help the policy makers and farmers for taking appropriate measures for marketing and storage. Such predictions will also help the associated industries for planning the logistics of their business. Several methods of predicting and modeling crop yields have been developed in the past with varying rateof success, as these don't take into account characteristics of the weather, and aremostly empirical. In the present study a software tool named 'Crop Advisor' has been developed as an user friendly web page for predicting the influence of climatic parameters on the crop yields. C4.5 algorithm is used to find out the most influencing climatic parameter on the crop yields of selected crops in selected districts of Madhya Pradesh. This software provides an indication of relative influence of different climatic parameters on the crop yield, other agro-input parameters responsible for crop yield are not considered in this tool, since, application of these input parameters varies with individual fields in space and time. © 2014 IEEE.

Li M.,CIAE | An S.,CIAE | Zhang T.,CIAE
IPAC 2013: Proceedings of the 4th International Particle Accelerator Conference | Year: 2013

In order to satisfy the rapidly increased domestic needs for PET in China, a small medical cyclotron named CYCIAE-14 is designed and constructed at CIAE (China Institute of Atomic Energy). As the beam intensity in CYCIAE-14 is high, the beam emittance should be controlled strictly in order to reduce the beam loss in the cyclotron. Precessional mixing and resonance crossing are the two main factors leading to emittance growth in the cyclotron with stripping extraction cyclotron. In this paper, the physical mechanism of precessional mixing in a stripping extraction cyclotron is investigated. After that, the maximum allowable field errors in CYCIAE-14 are derived using Hamiltonian and numerical simulation, which provides a reference for the cyclotron design and field shimming. Copyright © 2013 by JACoW.

Lu Y.,CIAE | Wang W.,CIAE | Zhenhui J.,CIAE | Zhang T.,CIAE
IPAC 2013: Proceedings of the 4th International Particle Accelerator Conference | Year: 2013

The CYCIAE-100 proton cyclotron being constructed in CIAE is designed to extract the proton beam of 100 MeV and 200 uA. The main magnet is the most important part of the cyclotron. The diameter of the CYCIAE-100 main magnet is 6160 mm. Its height is 3860 mm. Its total weight is about 416 tons, and the largest part is about 170 tons. The beamline of CYCIAE- 100 will be connected to the HI-13 tandem accelerator at CIAE. So, the CYCIAE-100 main magnet should be installed accurately. The vertical tolerance of the CYCIAE-100 main magnet is 0.20 mm, and the horizontal tolerance is 0.50 mm. The CYCIAE-100 main magnet is located in an underground building which level is -4 m. There is a horizontal hole on the west wall of the accelerator building. All parts of the main magnet had been moved through this horizontal hole. The CYCIAE- 100 main magnet had been installed in November 2012 at CIAE. In fact the error of installation is: The vertical 0.10 mm, the horizontal 0.20 mm. The installation process will be shown in this paper. Keywords: CYCIAE-100, main magnet, installation.

Zhou Q.,CIAE | Zhu Q.,CIAE
ICNC 2015 - International Conference on Nuclear Criticality Safety | Year: 2015

SFDS is the criticality assembly for the experimental research of the spent fuel dissolver in China Institute of Atomic Energy. The spent fuel dissolver, as the bottleneck of spent fuel reprocessing, has so many characteristics such as the dynamic changes, heterogeneous distribution, complex compositions that it is hard to analysis by theoretical method. Without enough experiments, clear bias and uncertainty of the analysis tools the handling limits for criticality safety in dissolver can't be determined. The SFDS, physical designed by MONK 9A code, uses two kinds of nuclear fuels, 3% enrichment solid UO2 rods and 5.5% enrichment UO2(NO3)2 solution, will meet the demand of the critical experiments about the dissolvers. Seven series of critical experiments will be present on it, those are on pitches of rods, uranium concentrations of solutions, nitric acid concentrations of solutions, fission products, void fractions, temperatures and dissolve phases. More kinds of experiments could be introduced with the flexible structures of SFDS in the future. The current work on it are testing and debugging with full systems by water and it will be first critical later in 2015. It will become the first benchmark assembly for critical experiments research in the nuclear fuel cycle system in China.

Qian H.,CIAE | Li Z.,CIAE | Ren L.,CIAE
International Conference on Nuclear Engineering, Proceedings, ICONE | Year: 2013

A passive decay heat removal system (DHRS) has been installed on Chinese Experimental Fast Reactor (CEFR). To well predict the thermal-hydraulics behavior of DHRS in transient, an integrated model has been developed for CEFR by using OASIS code. The model included the main thermal transfer system and DHRS circuit. The transient analysis of loss of off-site power (LOSP) accident with various initial steady states has been performed. The calculation results show that the initial steady state does not essentially effect on the peak cladding temperature in the core. Copyright © 2013 by ASME.

Wang X.,CIAE | Hu Y.,CIAE
IPAC 2011 - 2nd International Particle Accelerator Conference | Year: 2011

After more than 20 year's operation, the radiation protection system of HI-13 Tandem Accelerator laboratory needs to be upgraded in order to provide for higher personnel protection reliability, more convenience of worker's operations and farther display integrity of the working states. This new radiation protection system compose of seven protective doors control units and seven emergency door-open buttons , 23 groups of states indicators, 17 groups of alarms, 17 groups of workshopempty units , L.E Faraday cup and IMAG Faraday cup, as well as computer control and display system based on PLC. Pre-empty section is prerequisite before close the protective doors to ensure nobody be exposed irradiation environment otherwise the door-open would be disabled. Even thought somebody left, pushing nearby alarm button and inner emergency door-open button will induce glittery signal and simultaneous door-opening. L.E Faraday cup and IMAG Faraday cup execute immediate beam interruption once accidence occurred. The enough distributed indicators indicate the real time states of all the work fields. All the above devices and units are interlocked follow some complex but logical protective rules. In addition, computer workstation is built supported by radiation protective programs. Accordingly, after full information and operation action signals are collected and transferred to it, this computer workstation can complete full-sides status monitoring and provide convenient control and display interfaces as well as pop adequate prompt frames. Copyright © 2011 by IPAC'11/EPS-AG.

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