Physical Sciences and Engineering

The role of institutional digital repositories to develop scholarly communication

In this electronic publishing age, academic institutions including universities have increasingly recognized that an institutional digital repository is an essential infrastructure of scholarly dissemination. An IR is a digital research archive consisting of accessible collections of scholarly work that represent the intellectual capital of an institution. Digital repositories are widely used as a mechanism for making scholarly works freely accessible on the web.

Statistical approach of the physicalchemical investigation of chitosan/collagen biomatrix crosslinked with gradient of genipin for tissue engineering

Introduction: More than 60 million people in the United States have had an increase in their life expectancy in recent years because of artificial tissue and organ therapy, with every five people over 65 years old. In Brazil, this figure was higher. Thus, tissue engineering contemplates numerous advantages that meet the needs of the injured tissue or organ for the regeneration process. Objective: to investigate the physicochemical properties of chitosan/collagen cross linked with a gradient of genipin for tissue engineering.

Developers’ preferences to types of emerging landed properties in informal urban settlements: case of mlalakuwa – Dar Es Salaam

Developers have liberty to choose developing various types of landed properties according to the situation and opportunities presented to them. However, many questions can be raised as to why and how an informal settlement can be a preferred choice for developing landed properties. This paper focuses on the types of landed properties developers choose to develop in informal settlements.

Minimum risk estimation of scale parameter of length biased maxwell distribution with censoring under entropy loss functions

In this paper, we have discussed Length biased distribution arise when the probability of inclusion of population unit in sample is related to the value of the variable measured. For example in textile sampling modeling, Cox(1969). In this paper the appropriateness of a length biased Maxwell distribution has been given. The minimum risk estimator of its scale has been obtained under entropy loss function with the help of a type II censored sample. We have obtained that the MELO estimator is nothing but the usual maximum likelihood estimator.

A model of fish marketing at paotere fishing ports for increasing fishermen’s income

The marketing of fish harvest on demand and supply, does not make a significant difference of fishermen income. Marketing model of fish harvest becomes very important for increasing fishermen income. The research conducted on June to December, 2016. Data collection techniques include; Interviews and literature study. Respondents were determined based on purposive sampling method. The method of analysis used is Structural Ecuation Modeling (SEM).

Sustainable environmental development strategies in construction and manufacturing

Having a healthy and clean environment is of crucial importance to everyone. The industrial sectors are concerned with improving the social, economic and environmental indicators of sustainability. One of the most important problems today is the concerns resulting from the effects of contamination of natural resources and its transference to the human and environment. The objective of this study is to introduce solutions to combat environmental issues and develop a healthy and sustainable environment. The method was documentary research as a literature review.

Application of therotechnology in electronic embroidery machine (case study embroidery machines and laser)

In this article is discussed the application of a technique called terotecnologia, seeking the combination of management economics management with technology, highlighting the importance of life-cycle cost of the equipment. The main objective of terotecnologia is the search for alternative techniques, reliability studies and technical evaluations for-economic life cycles of equipment becoming less expensive.

Quality improvement of an iron ore jasper by selective milling

One of the most important factors during the process of comminution of minerals is their power consumption rate, which is determined by calculating the WI (work index), which in short is to analyze the amount of kWh consumed per ton of material, to reach a certain particle size and achieve the desired. Along with the quality of the ore is defined and use the classification of the ore. Ores of jaspelite type, high hardness, and with lower iron content 60% with silica content above 10.5%, tends to be considered economically unsuitable for merger cases in the Brazilian market.

Seasonal assessment of groundwater quality in terms of heavy metal contamination in Sukinda mining region of Jajpur District, Odisha

The present study deals with the assessment of heavy metal contamination of groundwater in and around Sukinda region, Odisha, which is rich in chromium, iron and nickel deposits.Mining and industrial effluents arising in this region is due to unrestrained mines, associated industries. Over burden and waste dumps are major factors for heavy metal contamination in groundwater.