scholarly journals ​Development and Performance Evaluation of a Two-row Mechanical Paddy Transplanter

2021 ◽  
Author(s):  
Sapunii Sebastian ◽  
E.V. Thomas
Keyword(s):  
Field Capacity ◽  
Machine Construction ◽  
Asian Countries ◽  
Rice Seedlings ◽  
Huge Amount ◽  
Hilly Region ◽  
Actual Field ◽  
And Performance ◽  
Four Bar Linkage ◽  
Direct Sowing

Background: Paddy is one of the most important staple food in most south-east Asian countries. It is grown either by direct sowing or by transplanting under wetland conditions depending upon the availability of water. India produces 116.48 million tonnes of rice with a productivity of 2659 kg ha-1. Manual transplanting of rice seedlings by hand is generally done in stooping posture which is laborious and drudgery. It also requires a huge amount of labour during peak season. Considering the need and to suit the hilly region, a two-row manually operated paddy transplanter was developed. Methods: For picking the seedlings, a four-bar mechanism was selected as the basis of design. The machine construction consists of a float, seedling tray, fixed-fork type finger, chain sprocket system and lugged wheel. For operation, the operator has to rotate the crank handle which transmits the motion through the chain sprocket system and four-bar linkage which in turn picks the seedlings and plants them onto the soil. Result: The machine was tested in the actual field condition and was working satisfactorily. The designed fixed fork-type finger can hold 5 to 8 seedlings at a time. The developed machine was found to be comfortable working at a speed of 0.5 kmph. The actual field capacity of the machine was 0.02 ha/h.

scholarly journals Performance evaluation of power-operated reapers for harvesting rice at farmers’ field

2018 ◽  
Vol 16 (1) ◽  
pp. 144-150
Author(s):  
Md Ashraful Alam ◽  
Anwar Hossen ◽  
AKM Saiful Islam ◽  
Monjurul Alam
Keyword(s):  
Performance Evaluation ◽  
Economic Performance ◽  
Production Cost ◽  
Field Capacity ◽  
Production Costs ◽  
High Wage ◽  
Harvesting Time ◽  
Actual Field ◽  
Field Efficiency ◽  
User Friendly

Harvesting is one of the major labor intensive works in rice cultivation. Appropriate harvesting machinery is urgently needed to reduce labor and production costs. Production cost of rice becomes high due to labor shortage and high wage rate during harvesting time. Techno-economic performance of Korean self-propelled reaper (KR), China self-propelled reaper (CR) and BRRI reaper (BR) were evaluated in order to identify the field constrains and problems of the reapers at Mithapukur of Rangpur, Bangladesh during Aman season of 2013. The actual field capacities of the KR, CR and BR were found 0.18, 0.17 and 0.15 ha h–1with the corresponding field efficiency of 55, 68 and 56%, respectively. The variation of field capacity among the models was due to turning time losses, weight of the reaper and operator’s skill. The fuel consumption of the reapers was 4.11, 2.61 and 8.39 l ha–1 for KR, CR and BR, respectively. The shattering loss of paddy harvesting was 1.66, 1.50 and 1.45% for KR, CR and BR, respectively. The break-even area of the reapers was 9.15, 7.82 and 8.43 ha yr-1 for KR, CR and BR, respectively. It is evident that the reaper could be used successfully as labor saving and user friendly technology to eliminate post-harvest problems in Bangladesh.J. Bangladesh Agril. Univ. 16(1): 144-150, April 2018

The Superpave Gradation Restricted Zone and Performance Testing With the Georgia Loaded Wheel Tester

1997 ◽  
Vol 1583 (1) ◽  
pp. 106-111 ◽  
Author(s):  
Donald E. Watson ◽  
Andrew Johnson ◽  
David Jared
Keyword(s):  
High Performance ◽  
Performance Testing ◽  
Mix Design ◽  
Design System ◽  
Department Of Transportation ◽  
Natural Sand ◽  
Aggregate Gradation ◽  
Actual Field ◽  
And Performance ◽  
Highway Research

Guidelines for the new hot-mix asphalt design system, Superpave, were developed under the Strategic Highway Research Program. One of the most controversial components of this system is the aggregate gradation restricted zone. This restricted zone was adopted as a gradation specification primarily to deter the use of high levels of natural sand in high-performance mixes. By designing mixes with gradations that avoid the restricted zone (i.e., limit natural sand), the internal strength provided by internal friction could be improved. Some agencies question the validity of the restricted zone. The specified gradations of many current mixes contain bands that enter the restricted zone, but the mixes have performed well for years in actual field conditions. The Georgia Department of Transportation (GDOT) currently specifies several standard mixes with gradations that enter the restricted zone and still perform well. These high-performance mixes contain good quality, 100 percent manufactured aggregates and no natural sand. GDOT recommends that the Georgia loaded wheel tester or some other proof tester be incorporated into the mix design process to screen mixes before rejecting them solely because their combined gradation enters the restricted zone. If mixes having combined gradations that enter the restricted zone are categorically rejected, mixes that are economical for the purpose intended may be rejected in the process.

Analytical Condition Inspection and Extension of Time Between Overhaul of F3-30 Engine

1991 ◽  
Author(s):  
Masato Nakao ◽  
Masataka Ikeyama ◽  
Shinji Abe
Keyword(s):  
The Other ◽  
Turbofan Engine ◽  
Field Service ◽  
Deterioration Rate ◽  
Self Defense ◽  
Other Hand ◽  
Field Operation ◽  
Actual Field ◽  
And Performance ◽  
Bypass Ratio

F3-30 is the low-bypass-ratio turbofan engine developed to power the T-4 intermediate trainer for the Japan Air Self Defense Force (JASDF). The actual field service was started in September, 1988. The program to extend time between overhaul (TBO) of the F3-30 has been running. Analytical condition inspection (ACI) and accelerated mission testing (AMT) were conducted to confirm the sufficient durability to extend TBO. Most deteriorations of parts and performance due to AMT were also found by ACI after field operation with approximately same deterioration rate. On the other hand, some deteriorations were found by ACI only. These results show that ACI after field operation is also necessary to confirm the TBO extension, though AMT simulates the deterioration in the field operation very well. The deteriorations which would be caused by the field operation during one extended-TBO were estimated with the results of ACI and AMT, and it was concluded that the F3-30 has the sufficient durability for TBO extension to the next step.

scholarly journals Carrier Tests to Assess Microbicidal Activities of Chemical Disinfectants for Use on Medical Devices and Environmental Surfaces

2005 ◽  
Vol 88 (1) ◽  
pp. 182-201 ◽  
Author(s):  
V Susan Springthorpe ◽  
Syed A Sattar
Keyword(s):  
Medical Devices ◽  
Performance Criteria ◽  
Residual Body ◽  
Test Methodology ◽  
Environmental Surfaces ◽  
Actual Field ◽  
Second Tier ◽  
And Performance ◽  
The Many ◽  
Glass Surfaces

Abstract For well over a decade, many deficiencies have been identified in current AOAC methods used to assess the microbicidal activities of chemical disinfectants on medical devices and environmental surfaces. This report discusses the development of quantitative carrier tests (QCT) designed to address these concerns. Decontamination of surfaces with dried inocula is invariably more difficult than when microorganisms are in suspension. For medical device as well as environmental decontamination, microbicides are used on contaminated surfaces, thus making it necessary to evaluate their microbicidal action on representative carrier materials contaminated with a dried challenge microorganism(s). Our approach is a 2-tiered QCT. The first tier (QCT-1) uses relatively ideal conditions to assess performance of the microbicide for screening purposes; the test uses smooth glass surfaces and quantities of disinfectant in excess of those likely to be experienced in the field. The second tier of testing (QCT-2) is more stringent because it uses (1) disks of brushed stainless steel as carriers, (2) only 50 μL of the test formulation on each carrier as compared to 1 mL in QCT-1, and (3) an added soil load to simulate the presence of residual body fluids or accumulated surface dirt. This review also discusses the factors that affect disinfection of medical devices and environmental surfaces in the context of the methodology used to evaluate the potency of microbicides. Specific recommendations for discussion are included, and performance criteria are suggested based on a risk-reduction approach for different classes of disinfectants. The focus is on improving the relevance of the test methodology to actual field use of disinfectants for devices and facilities in health care, and potentially in other settings. It is hoped that this review and its recommendations will initiate needed discussion and resolution of the many issues identified.

Health Policy in East Asia: Objectives, Priorities and Performance

2020 ◽  
pp. 1-23
Author(s):  
Gyu-Jin Hwang
Keyword(s):  
Social Rights ◽  
Common Belief ◽  
Asian Countries ◽  
Welfare Capitalism ◽  
Wide Range ◽  
Policy Arrangements ◽  
Policy Objectives ◽  
The Common ◽  
And Performance ◽  
High Level

This article aims to identify how the economies that do not necessarily prioritise social rights in their social policy arrangements fare in achieving various healthcare objectives. The big five of East Asian countries – China, Japan, South Korea, Taiwan, Singapore plus Hong Kong – are considered as such cases. It first highlights a wide range of variations in their healthcare offerings. It then shows that, contrary to the common belief, they constitute a surprisingly high level of redistributive elements in them. Deviating from their overall welfare regime characteristics, each healthcare system presents a unique combination of policy objectives in social, medical, economic and political terms, raising a question of the utility of social rights as a central conceptual lens to understand the world of welfare capitalism.

Determinants of Commercial Banks Profitability: Empirical Evidence from Pakistan

2014 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
Waqas Tariq ◽  
Muhammad Usman ◽  
Haseeb Zahid Mir ◽  
Inam Aman ◽  
Imran Ali
Keyword(s):  
Commercial Banks ◽  
Banking Sector ◽  
Huge Amount ◽  
Return On Equity ◽  
Net Interest Margin ◽  
Time Period ◽  
Direct Association ◽  
Gross Income ◽  
And Performance ◽  
Comparative Measure

As profitability is a comparative measure that describes the associations of total amount of profit with different factors. Thisstudy examines the influence of commercial banks determinants on the performance of commercial banks in Pakistan over the time period from 2004-2010. Consistency in performance is the basic reason for smooth running and presence of every financial institution.Profitability is the most significant and consistent indicator as it contributes huge amount of profitthat ultimately impacts its performance positively. The commercial bank’s profitability is found out by the return on equity (ROE) and net-interest margin(NIM). Result indicates that the capital strength of a bank is utmost significance in affecting its performance, as a well-capitalized bank is observed to be less risky and such edge lead to high profitability. The assets quality, measured by the loans loss provisions, affects the performance of the banks positively and bank size as deposit indicates direct association with profitability as large banks earn more profit instead of small banks. Inflation and NIGI affects the bank’s profitability inversely as increase inflation affects banks cost that increased and its earning main source is its fee that it charge on its services but free services without any charges decrease in gross income that lead a reduction in profit. This study is important and worthwhile for all commercial banks mangers regarding performance decisions of banks. As the development of the banking sector depends profoundly on strong decision making that leads to the efficiency and performance

scholarly journals DESEMPENHO OPERACIONAL NA SEMEADURA DO MILHO SAFRINHA EM SISTEMA DE SEMEADURA DIRETA

2021 ◽  
Vol 36 (1) ◽  
pp. 1-9
Author(s):  
Márcia de Almeida Carneiro ◽  
Felipe Adolfo Litter ◽  
Francielle Morelli Ferreira ◽  
Franciele Morlin Carneiro ◽  
Leonardo Luiz Oss
Keyword(s):  
Climatic Factors ◽  
Field Capacity ◽  
Effective Field ◽  
Operational Performance ◽  
Mato Grosso ◽  
Different Shapes ◽  
Field Efficiency ◽  
E Mail ◽  
Direct Sowing

DESEMPENHO OPERACIONAL NA SEMEADURA DO MILHO SAFRINHA EM SISTEMA DE SEMEADURA DIRETA   MÁRCIA DE ALMEIDA CARNEIRO1, FELIPE ADOLFO LITTER1, FRANCIELLE MORELLI FERREIRA2,3,  FRANCIELE MORLIN CARNEIRO3, LEONARDO LUIZ OSS1   1Faculdade de Ciências Agrárias e Biológicas, Universidade do Estado de Mato Grosso, Campus Universitário de Alta Floresta (Av. Perimetral Rogério Silva, Norte-2, Cep 78580-000, Alta Floresta - MT, Brasil), e-mails: [email protected], [email protected] , [email protected] 2Faculdade de Ciências Sociais, Aplicadas e Agrárias, Universidade do Estado de Mato Grosso, Campus Universitário de Nova Mutum (Av. das Garças, N° 1192 N, Jd. das Orquídeas, Cep: 78450-000, Nova Mutum - MT, Brasil), e-mail: [email protected] 3Departamento de Engenharia Rural, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane, s/n, Vila Industrial, Cep 14884-900, Jaboticabal - SP, Brasil), e-mail: [email protected] .   RESUMO: A semeadura do milho está sujeita a fatores que podem interferir na qualidade da operação, principalmente fatores climáticos que afetam diretamente a colheita da soja e consequentemente a semeadura do milho, portanto é necessário que ambas as operações sejam eficientes, garantindo o sucesso da produção agrícola. Diante ao exposto, objetivou-se avaliar o desempenho operacional na semeadura de milho safrinha na Fazenda Chopim em Novo Mundo – MT.  Foram realizadas avaliações em três dias de semeadura em talhões de formatos distintos, um com formato trapezoidal e outro com formato irregular, ambos com topografia levemente inclinada. Foram coletados os tempos produtivos, de interrupções e o de preparo, além da distância percorrida. Para a condução do ensaio foi utilizado um trator BH180, marca Valtra, ano 2008 e uma semeadora da Tatu Marchesan, modelo Ultra Flex, de 28 linhas. Foram avaliadas a capacidade de campo teórica, efetiva, operacional e a eficiência de campo. O desempenho operacional do conjunto da Fazenda Chopim apresentou média de capacidade de campo efetiva igual a capacidade de campo teórica (12 ha h-1). A semeadura na Fazenda Chopim foi considerada eficiente, pois apresentou valores médios (65,66 %) dentro dos valores considerados eficientes pela literatura (50-75%).   Palavras-chave: eficiência, mecanização, conjunto trator-semeadora.   OPERATIONAL PERFORMANCE IN THE CORN SOWING IN THE DIRECT SOWING SYSTEM   ABSTRACT: The corn sowing is subject to factors that may affect the quality of the operation, mainly climatic factors that directly affect the soybean harvest and consequently the corn sowing, so it is necessary that both operations are efficient, ensuring the success of agricultural production. Faced with the above, aimed to evaluate the operating performance in sowing winter corn in Fazenda Chopim in Novo Mundo – MT. Evaluations were conducted in three days of sowing in plots of different shapes, one with a trapezoidal shape and the other with irregular shape, both with slightly inclined topography. The productive, interruption and preparation times were collected, in addition to the distance covered. A BH180 tractor, Valtra, 2008 and a Tatu Marchesan seeder, Ultra Flex model, 28 rows, was used to conduct the test. Theoretical, effective, operational field capacity and field efficiency was evaluated. The operational performance of the Fazenda Chopim set showed an average effective field capacity equal to the theoretical field capacity (12 ha h-1). Sowing at Fazenda Chopim was considered efficient, as it presented average values (65.66%) within the values considered efficient by the literature (50-75%).   Keywords: efficiency, mechanization, tractor-Seeder Set.

scholarly journals Calibration and Performance Evaluation of Grain Corn Fertilizing Implement

2021 ◽  
Author(s):  
Rohazrin Abdul Rani ◽  
Adli Fikri Ahmad Sayuti ◽  
Mohd Khusairy Khadzir ◽  
Muhammad Haniff Ahmad
Keyword(s):  
Field Capacity ◽  
Application Rate ◽  
Effective Field ◽  
Corn Production ◽  
Speed Up ◽  
Field Efficiency ◽  
And Performance ◽  
The Times ◽  
The Right ◽  
Farm Design

Fertilisation in grain corn production is an important stage that must be done properly in terms of the amount of fertiliser used to reduce wastage and ensure crop growth. A fertilising implement brand Gasprado, was calibrated and evaluated for its performance to apply urea to grain corn crops at MARDI Seberang Perai, Pulau Pinang. Calibration was conducted to set the right metering for the device's opening to drop  urea that  meets the application rate of 130kg/ha. This was done by measuring the amount of urea dropped for a particular setting and distance. The machine has four metering devices which were labelled as MD1, MD2, MD3 and MD4. Additionally, the fertiliser applicator also comes with spring tine cultivating devices. The implement was tested for fertilising 56 rows of grain corn in the distance of 62 m long. The times taken for the tractor to finish four rows per run along the 62-m distance and to turn at the headland were recorded to evaluate the performance. The implement's metering devices MD1, MD2, MD3 and MD4 were calibrated at setting scales of B-1.5, B-0, B-0 and B-0, respectively that gave the urea application rate of 133 kg/ha, which was the nearest rate to the recommendation. The average working speed of the operation was at 4.08 km/h with the theoretical field capacity to be at 1.224 ha/h. Meanwhile, the machine's effective field capacity was 0.5208 ha/h, which had a field efficiency of 42.5 % for the particular farm design. The use of machine can speed up the operation of applying fertiliser to the grain corn crop but the performance is dependent on the farm layout.

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