265 Matching Results

Search Results

Advanced search parameters have been applied.

Current Developments in the Exploitation of the Sea as a Source of Food

Description: The chronic problem of protein deficiency that prevails in many parts of the world today poses a great challenge to modern technology. Current production of protein food of animal origin is insufficient to meet the needs of an increasing world population. From this fact arises the possibility of a world in which the majority of people will never have enough to eat,
Date: June 1970
Creator: Goodman, Lonnie E.
Partner: UNT Libraries

After the Harvest: Preservation, Access, and Researcher Services for the 2016 End of Term Archive

Description: This presentation discusses the End of Term Archive and methods for identifying and selecting in-scope content (including using registries, indices, and crowdsourcing URL nominations ["seeds"] through a web application called the URL Nomination Tool), new strategies for capturing web content (including crawling, browser rendering, and social media tools), access models including both an online portal as well as research datasets for use in computational analysis, and preservation data replication between partners using new export APIs and experimental tools developed as part of the IMLS-funded WASAPI project.
Date: December 13, 2016
Creator: Bailey, Jefferson; Grotke, Abigail & Phillips, Mark Edward
Partner: UNT Libraries Digital Projects Unit

[Pulling dead corn stalk]

Description: Photograph of a man pulling dead corn stalk from the ground. In the image the unidentified man holds multiple stalks in one hand while his other armed in raised to slice another stalk down.
Date: unknown
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

Presidential End of Term Web Harvest Lessons Learned

Description: This paper discusses web harvesting and the University of North Texas (UNT) Libraries' Presidential End of Term Web Harvest Project in which they captured government websites for archiving. In this paper, the author describes what web harvesting is, gives information on the project, and links and tools.
Date: 2005
Creator: Phillips, Mark Edward
Partner: UNT Libraries

Haymaking

Description: "Haymaking is an operation that must be done in a certain space of time that is short at best and that is always liable to be made shorter by bad weather. For this reason there is perhaps no farm operation in which system and efficiency count for more than in haymaking; yet throughout the hay-growing area more or less haphazard methods of haymaking are still very common. This bulletin is designed to point out ways in which the more successful hay growers of the country save time and labor in this important field work. It tells how the growing scarcity of farm labor may be met by rearranging crews and changing methods, and by the adoption of up-to-date implements, such as the hay loader, push rake, and stacker. In addition to outlines of methods for various sized crews and acreages the bulletin presents, briefly, a discussion of the theory of curing hay, a thorough understanding of which is a great help in planning an efficient method of haymaking." -- p. 2
Date: 1918
Creator: McClure, H. B. (Harry B.)
Partner: UNT Libraries Government Documents Department

Spring Oat Production

Description: "Oats rank next to corn and wheat in crop acreage and value in the United States. But, notwithstanding this, less attention has been given to the production of oats than to any other important grain, so that yields often have been unsatisfactory and the crop sometimes unprofitable. The essentials for success in oat production are -- (1) well-prepared land that is retentive of moisture and fairly fertile, (2) good seed of suitable varieties, thoroughly cleaned and graded and treated for smut, (3) early seeding with a grain drill, (4) the harvesting of the crop at the proper time, (5) careful shocking and stacking so as to preserve the crop from injury by weathering, and(6) clean thrashing. Directions for making the growing of oats more generally profitable are given in the following pages." -- p. 2
Date: 1917
Creator: Warburton, C. W. (Clyde William), 1879-1950
Partner: UNT Libraries Government Documents Department

The MetaCombine Project

Description: This poster presentation discusses the MetaCombine project, a Mellon-funded effort based at Emory University, with the goal of discovering and developing systems and methods to more meaningfully combine digital libraries, digital library resources, and digital library services.
Date: December 2004
Creator: Krowne, Aaron; Ingram, Stephen; Pathak, Saurabh & Halbert, Martin
Partner: UNT Libraries

A Corn-Belt Farming System Which Saves Harvest Labor by Hogging Down Crops

Description: "The system of farming herein outlined provides productive labor for practically the entire year and at the same time so distributes this labor as to make it possible for one man, practically without hired help, to handle a large acreage, making a net income considerably greater than is at present commonly obtained on farms of similar size in the corn-belt States." -- title page
Date: 1914
Creator: Drake, J. A.
Partner: UNT Libraries Government Documents Department

N-Doped graphene/C₆₀ covalent hybrid as a new material for energy harvesting applications

Description: This article systematically investigates the degree of functionalization and the key structural features of the N-G/C₆₀ hybrid by a number of techniques including thermogravimetric analysis, X-ray photoelectron and Raman spectroscopies and transmission electron and atomic force microscopies.
Date: August 26, 2018
Creator: Barrejón, Myriam; Arellano, Luis M.; Gobeze, Habtom B.; Gómez-Escalonilla, María J.; Fierro, Jose Luis G.; D'Souza, Francis et al.
Partner: UNT College of Arts and Sciences

Harvesting grain sorghums.

Description: Describes methods and equipment used for harvesting, threshing, and storing grain sorghums in the Great Plains of the United States.
Date: September 1928
Creator: Martin, John H. (John Holmes), 1893-; Reynoldson, L. A. (Le Roy August), b. 1886.; Rothgeb, Benton E. & Hurst, W. M. (Wilbur Magruder), 1898-
Partner: UNT Libraries Government Documents Department

The cost of silage harvest and transport systems for herbaceous crops

Description: Some of the highest yielding herbaceous biomass crops are thick- stemmed species. Their relatively high moisture content necessitates they be handled and stored as silage rather than hay bales or modules. This paper presents estimated costs of harvesting and transporting herbaceous crops as silage. Costs are based on an engineering- economic approach. Equipment costs are estimated by combining per hour costs with the hours required to complete the operation. Harvest includes severing, chopping, and blowing stalks into a wagon or truck.
Date: December 31, 1996
Creator: Turhollow, A.; Downing, M. & Butler, J.
Partner: UNT Libraries Government Documents Department

Enhanced Practical Photosynthetic CO2 Mitigation

Description: This report highlights significant achievements in the Enhanced Practical Photosynthetic CO{sub 2} Mitigation Project for the period ending 06/30/2004. The major accomplishment was the modification of the header and harvesting work, with a system designed to distribute algae at startup, sustain operations and harvest in one unit.
Date: July 15, 2004
Creator: Kremer, Gregory; Bayless, David J.; Vis, Morgan; Prudich, Michael; Cooksey, Keith & Muhs, Jeff
Partner: UNT Libraries Government Documents Department

Legacy TRAIL Content Conversion Plan: Blue Angel Technology Crawls

Description: This report was prepared for the Texas State Library and Archives Commission (TSLAC). It outlines the current state of and future conversion roadmap for the content captured by Blue Angel Technologies during the time period of 2002-2006 for TSLAC as part of the Texas Resource and Information Locator Service (TRAIL). This document will give a history of the data stored at the University of North Texas Libraries and information about the makeup of the collection as it exists in 2011, including the physical layout on disk, number of files, and MIME types. Finally, this document outlines a conversion path from the current file based organization system to a standard archival data format for inclusion in a future TRAIL discovery interface.
Date: January 31, 2011
Creator: Phillips, Mark Edward
Partner: UNT Libraries

Simulation Study of Tremor Suppression and Experiment of Energy Harvesting with Piezoelectric Materials

Description: The objective of this research is to develop a wearable device that could harvest waste mechanical energy of the human hand movement and utilize this energy to suppress wrist tremors. Piezoelectric material is used to measure the hand movement signals, and the signal of wrist tremor is filtered to be utilized to suppress the tremor. In order to conduct the experiment of energy harvesting and tremor suppression, an experimental rig was fabricated. Two types of piezoelectric materials, PVDF (polyvinylidene fluoride) films and MFC (macro fiber composite) films, are used to harvest mechanical energy and used as actuators to suppress hand tremors. However, due to some shortages of the materials, these two types of materials are not used as actuators to suppress the wrist tremors. Thus, we use Matlab Simulink to simulate the tremor suppression with AVC (active vibration control) algorithm.
Date: August 2012
Creator: Ou, Jianqiang
Partner: UNT Libraries

Alfalfa varieties for biomass production. Task IId. Quarterly report, July 1, 1997--September 30, 1997

Description: The use of alfalfa for biomass production may require harvest schedules and alfalfa varieties with different traits than currently marketed varieties. A late flower (2-cut) system may have several advantages compared to more frequent cutting systems because it can result in high stem yield, result in less trips over the field, allow more schedule flexibility, provide greater wildlife habitat, and allow greater alfalfa persistence. However, modem alfalfa varieties have been developed for a frequent harvest system with 3-4 cuttings per season. The objectives of this study were to determine the total biomass yield; leaf and stem biomass yield; and leaf and stem composition of alfalfa varieties subject to diverse harvest regimes. Alfalfa varieties included those currently marketed in the biomass region as well as experimental entries developed for lodging resistance and leaf retention. Harvest regimes included conventional strategies based on harvests at bud or first flower and a non-conventional strategy with harvests at late flower. Harvest regime had the most consistent and greatest effect on the variables studied. Forage yields were greater for the early flower regime. Harvests at earlier maturity frequently result in leafier, higher quality forage than harvest at late flower. 3 figs., 9 tabs.
Date: October 30, 1997
Creator: Sheaffer, C.; Martin, N. & Lamb, J.
Partner: UNT Libraries Government Documents Department