scholarly journals Control of Effective Productive Capacity with a Level of Total Production Inventory in a Business Fluctuation Period

2004 ◽  
Vol 124 (9) ◽  
pp. 1868-1873
Author(s):  
Shigeki Ishitani ◽  
Sadamichi Mitsumori
1993 ◽  
Vol 73 (2) ◽  
pp. 405-415 ◽  
Author(s):  
E. K. Yiridoe ◽  
A. Weersink ◽  
R. C. Roy ◽  
C. J. Swanton

Tobacco (Nicotiana tabacum L.) has been the predominant cash crop grown on sandy soils of southern Ontario, but the area cropped has fallen significantly with the decline in tobacco demand. Crops such as beans and wheat (Triticum aestivum L.) are technically feasible alternatives, but their yields have been highly variable. Cover crops and conservation tillage are approaches that may increase the productive capacity of sandy soils while reducing the environmental impact of present production systems. In this study, yields, costs and net returns of three bean-winter wheat cropping systems were evaluated under conventional tillage and four variations of no-till systems differentiated by the type of cover crop. The three beans considered were soybeans (Glycine max L. Merr.), white beans (Phaseolus vulgaris L.) and kidney beans (Phaseolus vulgaris L.). Average yields of the three beans grown under conventional tillage were consistently lower than those of the four no-till treatments, but the differences were significant in only a few years. Total production cost for the bean crops was $96 ha−1 lower for the no-till treatments than for conventional tillage. Average net returns for the rotation involving kidney beans were approximately $100 ha−1 higher than those involving white beans and $330 ha−1 higher than soybeans. Conventional tillage produced the lowest net returns within each of the bean/wheat rotations. Key words: Conventional tillage, no-till, bean, net returns


2008 ◽  
Vol 04 (02) ◽  
pp. 251-265 ◽  
Author(s):  
CHIH HSUN HSIEH

In this paper, two natural production inventory models based on fuzzy total production inventory cost with the preference of a decision maker are introduced, and combined by natural number parameters in which values are linguistic values in natural language, crisp real number variables, and fuzzy number variables. These are the one natural production inventory model for crisp production quantity, and the other natural production inventory model for fuzzy production quantity. The natural arithmetical operations of both natural numbers and fuzzy numbers by Function Principle are used to compute fuzzy total production inventory cost of each natural production inventory model. Graded k-preference integration representation method is discussed for defuzzifying fuzzy total production inventory cost by preference of decision maker. Furthermore, Extension of the Lagrangean method is used to solve inequality constrain problem in our natural production inventory model. We find out that our optimal solutions can be specified to the classical production inventory model when preference 0.5 of decision maker and natural numbers and fuzzy numbers in our models are crisp real numbers.


2019 ◽  
Vol 11 (5) ◽  
pp. 419 ◽  
Author(s):  
Douglas C. de Souza ◽  
Paula A. Costa ◽  
Luis F. L. e Silva ◽  
Thiago S. Guerra ◽  
Luciane V. Resende ◽  
...  

Arrowroot rhizomes are rich in carbohydrate and are commonly grown by family farmers who have an important source of income in this activity and play a prominent role in the conservation of the species. There are few studies on the phytotechnical aspects of culture. The objective of this work was to evaluate the productive capacity of the ‘common’ arrowroot using different sizes and forms of propagation, aiming at the production of rhizomes and arrowroot starch, in different agricultural crops. The experimental design was the randomized block in a 4 × 2 factorial scheme, with 6 replicates. Four types of rhizome propagation (rhizomes-seeds of small size with a weight of 20 to 30 g; rhizomes-seeds of average weight between 30.01 to 45 g; rhizomes-seeds of large size weighing between 45.01 a 60 g, and seedlings produced in tissue culture), in two agricultural years (2015/2016 and 2016/2017). The variables total production, number of rhizomes, extraction yield and total starch production were evaluated. The type of propagule used interfered in the yield of rhizomes (9.85 to 34.75 t ha-1) and in the production of arrowroot starch (1.76 to 7.68 t ha-1). The vegetative propagation with pieces of rhizomes-seeds between 20 and 60 g was more viable than the micropropagation technique. Although the soil and climate conditions showed differences between the agricultural crops studied, they did not significantly influence the yield of rhizomes and arrowroot starch, by the type of propagule used.


2011 ◽  
Vol 27 (3) ◽  
pp. 1131-1138
Author(s):  
C. Pascal ◽  
I. Gîlca ◽  
C. Costică

The researches have had as the main object the studying of the productive capacity of the sheep populations F1 obtained by crossing the local sheep Tsigai with the Blackhead Teleorman rams brought from southern Romania. The principal objectives of this research were the following: studying the evolution dynamics of weight and the corporal development starting from birth until the age used to mount, ability to secrete milk evaluation, assessment of quantity and quality of wool. The researches have been made in a private exploitation from the North-East part of Romania, and the conducted study emphasize that if the birth body weight of the lots were analyzed at birth there were close to the live weight at 28 days determined by the weight differences that are favourable for the halfbreeds lots and are significant for the statistical thresholds that are considered. At age of 16 months, when females were used to mount the first time, the absolute difference between the live weight of half-breeds and Tsigai breed was over 3 kg and was significantly distinct statistically speaking from the limit of p< 0.01. The production of milk control has been made during the first lactation following that in the next period to continue this research. The first lactation had a total duration of 225 days, and the total production of milk obtained from half-breed females was higher by 13.68% compared to the performance achieved by the sheep of the pure breed Tsigai, justifying this in terms of expanding the type of matting. The researches have continued also with the evaluation of wool production, and the obtained values show that are not significant differences for the total amount of wool obtained from the first cut of. Instead, when there were evaluated some characteristics of which the wool quality depends (length, degree of flexuosity, fine, return to washing) was found that at the Tsigai breed these had higher values, a consequence of the genetic consolidation degree and of the good selection level for this race.


2014 ◽  
Vol 627 ◽  
pp. 314-317
Author(s):  
Cun Rong Li ◽  
Bhaba R. Sarker ◽  
Hui Zhi Yi

This research studies the impact of maximum allowable stopping time for machining tools on the production-inventory policy under a variable tools lifespan and demand. A mathematical model is developed to determine the optimal maximal allowing stopping time, the inventory level, and the replenishment interval. A numerical example was conducted using an exhaustive searching method to show the implementation of our model. The results indicate that, compared to the traditional policy which only repairs and replace the broken tools, adopting a maximum allowable stopping time dramatically reduced the total production cost.


Author(s):  
H.E. Brown ◽  
S. Maley ◽  
D.R. Wilson

Gruner kale showed a linear increase (8.0 kg DM/ha per °Cd) in biomass with sowings on 1 October, 3 November and 1 December producing 23, 19 and 17 t DM/ha (respectively) by the 29 May. Regrowth following mid season defoliation was slow (5.3 kg DM/ha per °Cd) reducing total production (relative to undefoliated) by 7.5 and 5.5 t DM/ha for treatments defoliated on the 29 January and 14 March, respectively. Keyworks: defoliation, kale, quality, regrowth, sowing date, thermal time, yield


2018 ◽  
Vol 9 (9) ◽  
pp. 825-832
Author(s):  
James M. Alin ◽  
◽  
Datu Razali Datu Eranza ◽  
Arsiah Bahron ◽  
◽  
...  

Seaweed-Kappaphycus-Euchema Cottonii and Denticulum species was first cultivated at Sabah side of Sebatik in 2009. By November 2014, sixty one Sabahan seaweed farmers cultivated 122 ha or 3,050 long lines. Thirty Sabahan seaweed farmers in Kampung Pendekar (3.2 m.t dried) and 31 in Burst Point (12.5 m.t dried) produced 16 metric tonnes of dried seaweed contributed 31% to Tawau’s total production (51 m.t). The remaining 69% were from farmers in Cowie Bay that separates Sebatik from municipality of Tawau. Indonesian in Desa Setabu, Sebatik started in 2008. However, the number of Indonesian seaweed farmers, their cultivated areas and production (as well as quality) in Sebatik increased many times higher and faster than the Sabah side of Sebatik. In 2009 more than 1,401 households in Kabupaten Nunukan (including Sebatik) cultivated over 700 ha and have produced 55,098.95 and 116, 73 m.t dried seaweed in 2010 and 2011 respectively. There is a divergence in productions from farming the sea off the same island under similar weather conditions. Which of the eight explanatory factors were affecting production of seaweeds in Sebatik? Using Cobb Douglas production function, Multiple Regression analysis was conducted on 100 samples (50 Sabahan and 50 Indonesian). Results; Variable significant at α = 0.05% are Experience in farming whereas Farm size; Quantity of propagules and Location — Dummy are the variables significant at α 0.01%. Not significant are variables Fuel; Age; Number of family members involved in farming and Education level.


2020 ◽  
Vol 8 (2) ◽  
pp. 128-149
Author(s):  
Dini Maulana Lestari

This paper will discuss about the immaterial costs and production yields at one of the refined sugar factory companies in Makassar, South Sulawesi. The theory is based on the fact that Immaterial is a cost that is almsgiving, meaning costs that are outside of the basic costs of the company in producing production, so this research aims to find out: (1) what is the production cost needed to produce this production, (2) the maximum level of production at company from 2013 to 2017. This type of research is a quantitative study because it uses a questionnaire in the form of values ​​that are processed using the marginal cost approach formula. The results of the analysis show that (1) the maximum level of production costs occurred in 2016 amounting to 6,912 with an Immaterial cost of Rp. 2,481,796,800 and the total production produced is 359,077.3 tons (2) The required workforce with the total production produced is 359,077.3 tones of 180 people including the maximum production point which means that the lowest value is achieved (optimal).    


2014 ◽  
Vol 12 (9) ◽  
pp. 3921-3926
Author(s):  
Ritha Prakash ◽  
Nivetha Martin

In recent times, we are witnessing the technological revolution which provides access to tremendous changes in all the fields including the industrial sectors. The notable benefit of the modern technology is quick accomplishment of complex tasks within a short span of time, which has motivated the manufacturers to imbibe novelty techniques in the production process to enhance the quality of the product so as to retain its market position amidst the competitors. As globalization has gained more concern, the manufacturers employ internet advertising strategy to elevate the product to international level and to propagate the attributes of the products to the customers residing worldwide. In this paper an EPQ inventory model is developed in which the associated costs of technology, acquisition of local and international customers via internet advertising costs are included, a numerical example is also presented to validate the model.


Sign in / Sign up

Export Citation Format

Share Document