Las Vegas and Reno, Nevada Renter Migration

This Fact Sheet summarizes and expands upon the findings of Apartment List’s Renter Migration Report. The data presented herein focuses on renter search inquiries (both inbound and outbound) regarding Las Vegas and Reno, Nevada

Defense Spending by State - Nevada Fiscal Year 2017

This Fact Sheet reprints two pages from the March 2019 DEFENSE SPENDING BY STATE (FISCAL YEAR 2017) publication issued by the United States Department of Defense: Office of Economic Adjustment for the purposes of relaying information related to defense spending in the State of Nevada.1 The original report presents data from fiscal year 2017, the most recent annual data available at the time of publication

Evaluation of Intelligent Wells Performance in a Five-Spot Arrangement

The efficiency of water flooding processes can be improved by installing intelligent wells which are good candidates for control and optimization. Optimal control theory based on adjoint formulations was found to be efficient for reservoir optimization. However, this solution approach is local and may not be suitable for comparing design alternatives. In this work, an approach for determining an optimal starting point for optimal control theory procedure was developed to give near global optima. The performance in terms of net present value (NPV) of two forms of five-spot pattern was compared. The method results to similar performances of the two alternatives because it was formulated to give true optimal solution trajectories. It was found that regular five-spot pattern results to a NPV in excess of $4,900 over inverted design. Respective increase in oil and water productions of 0.23% and 0.22% were recorded for former design against the later.Keywords: intelligent wells; adjoint; optimal control theory; global optimum; water flooding

RELATIONSHIP BETWEEN UTILIZATION OF COLLECTION DEVELOPMENT PROCESSES AND BUILDING LIBRARY COLLECTION

This study determined the relationship between utilization of Collection Development Process and Building Library Collections in Federal University Libraries in North-Eastern Nigeria. The study was guided by Six objectives which were to determine the extent of utilization of collection development process and the relationship between utilization of community analysis, collection development policies, selection criteria, acquisition procedure, weeding as well as resource evaluation procedures and building library collection in libraries under study. To achieve these objectives six research questions developed and six null hypotheses were formulated and tested. It was hypothesized that, there is no significant relationship between the utilization of community analysis, selection policy, selection criteria, acquisition procedure, weeding procedure and resource evaluation procedure and Building Library collection in the libraries under study. The study was a correlational study and used correlational research design. The population for the study was made up of fifteen staff of the selected federal university libraries in the North-East Zone, Nigeria, working in the Collection Development Divisions. All the population were used for the study. The research instrument for this study was a self-designed questionnaire that was complemented with a checklist. A 4-point likert type scale questionnaire was used for data collection. Data was analyzed using descriptive statistics of frequency counts, percentage scores, and Pearson product Moment Correlation coefficient (PPMC) was used to test the hypotheses at 0.05 level of significance. The hypotheses tested revealed that, there was a significant relationship between utilization of community analysis, acquisition procedure and Building library collection in libraries under study. On the basis of the findings, conclusion drawn, recommendations were made for the improvement of utilization of collection development process in building library collections. The study recommends that the university libraries under study should increase partnership with the faculty to explore especially in the determination of materials to acquire; faculty members should be in a position to make valid judgment (selection) on relevance of tests to be included in the collection, hence their increased involvement in material selection will add to the richness of the library collection; a formalized comprehensive collection development policy should be developed and operated in the libraries studied, and the document should be reviewed periodically for up-to-datedness; weeding should be a periodic exercise in the libraries studied, so as to rid the shelves of irrelevant or unusable materials and increase access to usable ones; the libraries studied should create a Collection Department with a mandate to coordinate all collection development activities; of selection, acquisition, stock evaluation and weeding; collection development librarians should be trained and retrained in the process of building library collection in order to have an effective and efficient library collections

Toxic Species And Particulate Emissions From Wood And Pool Fires

Fire fatalities in the UK are attributed to smoke inhalation especially in dwellings. Another serious issue of great concern is the exposure to respirable particles of sizes less than 0.1µ in diameter found in smoke and soot and these have not been given much attention despite the health hazards associated with them. The main aim of this research was to quantitatively look at the toxic emissions (toxic gases and particulates) under different fire conditions for wood based materials relevant to residential fires and in pool fires relevant to industrial scenarios. Different classes of wood (Natural, Processed and Plywoods) used in construction and furnishings were investigated under free ventilation conditions and restricted ventilation conditions using the standard cone calorimeter and the controlled atmosphere cone calorimeter modified to enable raw gas sampling. Pool fires (Diesel, Lubricating oil and olive oil) were also investigated using the freely ventilated standard cone calorimeter. Pine wood crib and diesel pool of different sizes were investigated in a 5m3 fire test compartment at varying ventilation rates. Toxic concentrations were measured through a heated sampling line using a heated FTIR analyser, calibrated for 65 species. An important finding was the overwhelming toxic gases produced by low temperature smouldering fires exceeding the impairment of escape threshold and the lethality threshold by a factor of 60-10 000 on an impairment of escape basis and a factor of 4-100 on lethal basis. The real-time particle size, number and mass distribution from the burning fuels was obtained using the DMS 500 particle size analyser and this showed a bimodal distribution, representing a nucleation mode and an agglomeration/accumulation mode. The particle size distribution on a number basis showed a peak of 20 nm in the nano particle size range and a peak of 200 nm in the agglomeration range for most fires. These nano particles (20 nm) will penetrate the lungs in the event of fire, potentially leading to impairment of escape and eventually death due to the effects that fine particles have on the lungs thereby making them a major toxic hazard in fires. To the knowledge of the author, this is the first time that particulates in this size range (20nm and less) have been quantified from burning materials. The modified cone calorimeter proved to be a good technique for realistic determination of toxic yields and particle size distributions when used with the heated FTIR and the DMS 500 analysers

Application of Morphostructural and Spatial Analyses in Placer-Gold Source Interpretation within Wonaka Schist Belt, Northwestern-Nigeria

Morphologic and placer features were used to characterize, determine the provenance, and transport distances of gold grains within the River Gagare drainage basin of the Wonaka Schist Belt. Field studies, scanning electron examination coupled with energy dispersive spectrometry and binocular microscopy were utilized to study the spatial distributions, shape, size, inclusions, primary and fluvial transport-induced deformations, as well as Cailleux flatness indices. The grains are dominantly subrounded (71%), with the length between 35 – 800 µm and width of 10 – 778 µm while the rounded grains have a mean length of 292.5 µm and width of 179 µm. Similar values for circularity and sphericity are observed in the sub-rounded grains, with slight variations of 2.7 circularity and 2.6 sphericitydistinguished in the rounded grain subset. The Cailleux flatness index range from 2.5 to 9 for subrounded grains and 2 – 15.5 for the rounded, indicating the multisource nature of the grains. The grains are consistent with short to moderate transport distances from the lode sources. The similarities in physical features, lack of delicate secondary growth structures and irregular grain outlines point to a detrital source for the placer deposits. Evidence of emulsion crystallisation type is indicated by the presence of sub- to anhedral  inclusions within the Au grains. Keywords: Placer gold, Cailleux flatness indices, Wonaka Schist Belt, Provenance, Northwest Nigeri

Receding horizon control for oil reservoir waterflooding process

Waterflooding is a recovery technique where water is pumped into an oil reservoir for increase in production. Changing reservoir states will require different injection and production settings for optimal operation which can be formulated as a dynamic optimization problem. This could be solved through optimal control techniques which traditionally can only provide an open-loop solution. However, this solution is sensitive to uncertainties which is inevitable to reservoirs. Direct feedback control has been proposed recently for optimal waterflooding operations with the aim to counteract the effects of reservoir uncertainties. In this work, a feedback approach based on the principle of receding horizon control (RHC) was developed for waterflooding process optimization. Application of RHC strategy to counteract the effect of uncertainties has yielded gains that vary from 0.14% to 19.22% over the traditional open-loop approach. The gain increases with introduction of more uncertainties into the configuration. The losses incurred as a result of the effect of feedback is in the range of 0.25%–15.21% in comparison to 0.39%–31.51% for the case of traditional open-loop control approach

Optimization of Petroleum Reservoir Waterflooding Using Receding Horizon Approach

In this paper, static and dynamic optimization of a reservoir waterflooding process for enhanced oil recovery was studied. The dynamic optimization was achieved using receding horizon (RH) algorithms. Two forms of RH which are movingend and fixed-end RH were formulated and compared. MATLAB Reservoir Simulator (MRST) from SINTEF was used for reservoir simulation. The objective function to be maximized is net present value (NPV) of the venture while the control variable is water injection rate. Sequential quadratic programming (SQP) was applied for the optimization. It was found out that fixed-end RH gave the highest NPV with improvements of 0.81% and 1.49% over static and moving-end RH strategies respectivel

Fish Production In Nigeria: An Update

Nigerian Veterinary Journal, Vol. 32(3): 2011; 226 - 22

Impact of Polytechnic Education on Enterprenuership Development in Nigeria

The consequential failures of breakeven in respect to business expectations in Northern Nigeria drive around the competent knowledge acquired by entrepreneurs. This knowledge can be translated into identifiable opportunities with lucrative business openings. As such impacting knowledge on Entrepreneurship Education to yield employment opportunities through the entrepreneurship development was the bases of this Research work. Survey Method was designed and used with Multistage sampling procedure. The responses were categorized into four Stages. (9) local governments were randomly selected from three (3) senatorial zones in Stage One. In the second stage, fifty (50) Ramat Polytechnics graduates engaged in Entrepreneurship businesses in the areas of Technical, Vocational, Businesses etc. courses were purposively selected from 27 local governments of the state. Descriptive statistic and five point likert scale were used to analyze the data. The result shows that; there were several types of entrepreneurs that are products of Polytechnic Education fastened in economic growth with employment opportunities created through the entrepreneurship development through expanding of businesses and poverty reduction. It was recommended that Entrepreneurship development should become part and parcel of tertiary Institutions’ curriculum so that youngsters will acquire the necessary skills from the onset