Thomas M. Wade Collection

Research materials on history of Tensas Parish, Louisiana, compiled by Wadehttps://digitalcommons.latech.edu/manuscript-finding-aids/1411/thumbnail.jp

Chora

Wenona Jonker is a student at Louisiana Tech University where she is studying English with a concentration in literature and a minor in plant science. She is not a poet nor does she have a particularly “green thumb,” but she loves both words and plants and would like to know them better

Molecular Weight and Heating Value of Lignin Extracted using Deep Eutectic Solvent.

The molecular weight of lignin helps us to determine how lignin can be applied accurately in industry. The molecular weight can predict the behavior of lignin, and how it will function when combined with other materials. This thesis discusses how the molecular weight of lignin can be found with gel permeation chromatography (GPC) after acetylation with acetic anhydride and pyridine. Different lignins gave different number average molecular weight and weight average molecular weight values, which were likely due to the biomass source, type of extraction and solubility in the solvent of choice. How the structure of lignin changed after derivatization was investigated using infrared spectroscopy. The extraction of lignin, including yields and purities, from various biomass sources using different deep eutectic solvents (DES) was also studied. Using bomb calorimetry, the fuel value of lignin extracted with DES from various biomass sources was also explored to determine the best method to obtain lignin-derived fuels

Ear specific ANL measurements in individuals with unilateral and asymmetrical sensorineural hearing loss

The present study sought to determine if ANLs differ between ears within subjects with unilateral or asymmetrical SNHL. ANL was measured in four conditions (i.e., binaural, better ear, poorer ear unmasked, and poorer ear masked) in fifteen adults, nine with unilateral SNHL and six with bilateral asymmetrical SNHL. A significant difference between ANL in the four conditions (i.e., binaural, better ear, poorer ear unmasked, and poorer ear masked) was identified; however, the subjects with unilateral and asymmetrical SNHL behaved similarly throughout the testing. When comparing the four conditions, the results showed a significant difference between both the binaural ANL and better ear ANL conditions and the poorer ear unmasked ANL condition. There was no significant difference between the binaural and better ear ANL conditions or the poorer ear unmasked and the poorer ear masked conditions. Furthermore, both the binaural ANL and better ear ANL conditions versus the poorer ear masked ANL condition approached significance. Collectively these results showed that when the better of the two ears was being used, subjects had lower ANLs compared to when the poorer ear was being used. This suggested that the peripheral auditory system could be at least in part contributing to the mediated point of ANL. Alternately, ANL may be due to auditory deprivation, thus a central auditory phenomenon is the result of ANL mediation. Clinical implications/applications will be discussed

Louisiana Polytechnic Institute Booklets

Programs and other materials concerning Louisiana Polytechnic Institute.https://digitalcommons.latech.edu/manuscript-finding-aids/1263/thumbnail.jp

Sub pixel analysis and processing of sensor data for mobile target intelligence information and verification

This dissertation introduces a novel process to study and analyze sensor data in order to obtain information pertaining to mobile targets at the sub-pixel level. The process design is modular in nature and utilizes a set of algorithmic tools for change detection, target extraction and analysis, super-pixel processing and target refinement. The scope of this investigation is confined to a staring sensor that records data of sub-pixel vehicles traveling horizontally across the ground. Statistical models of the targets and background are developed with noise and jitter effects. Threshold Change Detection, Duration Change Detection and Fast Adaptive Power Iteration (FAPI) Detection techniques are the three methods used for target detection. The PolyFit and FermiFit are two tools developed and employed for target analysis, which allows for flexible processing. Tunable parameters in the detection methods, along with filters for false alarms, show the adaptability of the procedures. Super-pixel processing tools are designed, and Refinement Through Tracking (RTT) techniques are investigated as post-processing refinement options. The process is tested on simulated datasets, and validated with sensor datasets obtained from RP Flight Systems, Inc

The effects of advertised exclusivity on consumer behavior

Retailers routinely counter price competition by matching or beating competitors\u27 prices. However, in addition to offering price-matching guarantees many retailers are increasingly adopting a differentiation or product assortment strategy of using advertised retailer exclusive products (AREPs) that are not directly comparable to competitor offerings. Such goods may offer added utilitarian and hedonic benefits to the consumer. With this tactic, products are advertised and labeled as exclusive, but the nature of the exclusivity may range no further than an exclusive label to more pronounced differences, such as unique or additional features. However, the effectiveness of such tactics at: (1) decreasing search motivations for lower prices and/or alternative versions of the product, (2) shaping perceived value (both utilitarian and hedonic), and (3) influencing consumers\u27 purchase decisions, is relatively unknown. Furthermore, while AREPs are a fairly new trend in retailing, the idea of exclusive products is a well-worn marketing idea. Luxury goods, in particular, are associated with exclusivity. However, exclusivity, especially the explicit, advertised exclusivity associated with AREPs, is different from the implied exclusivity of luxury goods. Therefore, this dissertation also presents a continuum and classification scheme of exclusivity to assist in differentiating between the types of exclusivity appeals and products. With the various forms of exclusivity classified, this dissertation gives a refined definition of exclusivity in a marketing context. Next, this dissertation discusses commonly accepted reference price models (e.g. Urbany et al. 1988, Alford and Engelland 2000) and suggests ways in which AREPs might influence these models and convince consumers to pay more for an exclusive product. An alternative model specifically addresses ways in which AREPs attempt to suppress or enhance parts of the traditional reference price model to increase purchase intention. AREPs, by their very nature, have no identical products available for comparison. However, other retailers may offer extremely similar versions of the same products. Rather than competing on price, AREPs use a combination of scarcity, whether real or perceived, prestige pricing, and additional hedonic (i.e. emotional) or utilitarian (i.e. practical) value to make the sale price more attractive. This unique combination of exclusive features and attributes may increase the likelihood of customer lock-in, in which customers must visit the retailer, and perhaps pay a slightly higher price, in order to obtain the additional exclusive attributes. Overall, this dissertation focuses on the nature of exclusivity in a marketing context, both in the retail marketplace and in the academic literature. While AREPs as a retailing strategy are discussed in-depth, other forms of exclusivity are also discussed to better define exclusivity and differentiate between the forms that exclusivity takes in the marketplace. Last, an experiment testing consumer reactions to exclusivity promotions provides insight into the effectiveness of such promotions and gives a better understanding of how consumers perceive exclusive product promotions. The experiment was conducted using a web survey at a university in the southern United States. After cleaning the data, 321 valid responses remained. MANCOVA was used to analyze the results of the survey, and exclusivity promotions alone appeared to have had little impact on consumer perceptions. When exclusivity and additional product attributes were both present, exclusivity promotions significantly lowered the subjects\u27 attitudes toward the product in some manipulations. Overall, exclusivity promotions and their effects seem related to the type of attributes that are combined with the exclusivity promotion, and these effects appear to vary across product class

Charles A. Oxford L. I. I. Collection

Material associated with Carlisle Oxford\u27s student days at Louisiana Industrial Institute.https://digitalcommons.latech.edu/manuscript-finding-aids/1077/thumbnail.jp

Allen Ashley Collection

Photographs of Louisiana Industrial Institute, Old Main; Louisiana State University, college room, etc.https://digitalcommons.latech.edu/manuscript-finding-aids/1015/thumbnail.jp