195 research outputs found
MEMS 411: Laundry No Mo (LNM)
How can you optimize your time and labor while folding laundry? You can do so with this laundry folding device called Laundry No Mo (LNM)
MULTIDISCIPLINARY OPTIMIZATION OF NON-SPHERICAL, BLUNT-BODY HEAT SHIELDS FOR A PLANETARY ENTRY VEHICLE
Gradient-based optimization of the aerodynamic performance, static stability, and stagnation-point heat transfer has been completed to find optimal heat shield geometries for blunt-body planetary entry vehicles. In the parametric study, performance trends have been identified by varying geometric parameters that define a range of cross-sections and axial shapes. Cross-sections considered include oblate and prolate ellipses, rounded-edge polygons, and rounded-edge concave polygons. Axial shapes consist of the spherical-segment, spherically-blunted cone, and power law. By varying angle-of-attack and geometric parameters, the aerodynamics, static stability, and heat transfer are optimized based on Newtonian impact theory with semi-empirical shock-standoff distance and stagnation-point heat transfer correlations. Methods have been verified against wind tunnel and flight data of the Apollo Command Module and are within 15% for aerodynamic coefficients and stagnation-point heat fluxes. Results indicate that oblate parallelogram configurations provide optimal sets of aerothermodynamic characteristics
Formulation, Organoleptic Evaluation, and Acceptability of Various Teas from Underutilized Nutritious Herbs Compared with Marketed Chinese and Yellow Lipton Tea
Herbal teas are nutrient, antioxidant, and hydration-rich brews made from herbs and spices and taken for various purposes. The objective of this study was to formulate tea from clove (Syzygium aromaticum), leaves of lemongrass (Cymbopogon citratus), guava (Psidium guajava), and moringa (Moringa oleifera), as well as compared with Chinese and yellow Lipton Tea. The samples were analyzed for comparative sensory analysis using the 7 points hedonic scale. The sensory evaluation result demonstrated that the color of the clove tea sample (5.87) was most acceptable by participants, while the lemongrass tea (4.46) sample was least acceptable amongst all the tea samples. The clove remained the most accepted tea for aroma (6.07), taste (5.92), texture (5.76), general appearance (5.74), and general acceptability (5.93), in 7 points hedonic scale. However, all tea samples were had significant acceptable scores above average (p <0.05). Owing to the above results, these herbs can be successfully used to produce tea of relatively good quality to encourage herbs' local consumption and stay healthy
Preliminary Survey on Knowledge, Attitudes, and Practices about the COVID-19 Pandemic among Residents in North Central Nigeria
A preliminary survey on the knowledge, attitude, and practice of the COVID-19 pandemic among residence in North Central Nigeria, was conducted. An anonymous electronic network sampling survey designed by e-survey was employed. The result showed that on the level of knowledge and practice, 76.83% opined that people may be sick for 1-14 days without developing the symptoms. On the viral transmission, 94.41% agreed that the transmission of the virus can be through direct contact with contaminated surfaces through eyes, nose, and mouth, as well as 78.35%, responded that the virus doesn't penetrate the skin. More so 92.04% of the respondents showed that older and sick people are more vulnerable to the disease with 98.86% showing that the most common symptoms may include fever, tiredness, dry cough, and sometimes difficulty in breathing. Only 24.43% asserted that COVID-19 cannot be transmitted through social gatherings, going put often, making direct physical contact with people. Meanwhile, 21.02% showed COVID-19 is a punishment for immoral behavior. On the rate of the outbreak, 94.32% said it is scary. Only 55.11% asserted approval of the control approach by the government. However, 82.29% would agree with the response of the masses to government measures to control the spread. On the way forward, 98.87% advised the need for more research and 87.08% would approve of vaccination against the disease. This implies that the respondents have a good level of knowledge and practice about COVID-19 and necessary adjustments are needed to control or manage the spread of the pandemic
AN ASSESSMENT OF FACTORS AFFECTING MATERIAL STOCK CONTROL PRACTICE ON SELECTED CONSTRUCTION SITES IN NIGERIA
This research examines the stock control methods utilized by construction firms on construction sites with a view to assessing the factors affecting material stock control practice by construction firms as well as determining the impact of factors affecting material stock control on building project performance. Data were collected with the aid of well-structured questionnaire administered on a number of construction professionals and technicians in some randomly selected building construction firms in South Western Nigeria. The data generated were further analyzed using descriptive statistics. The study showed that the stock control method utilized by most construction firms on their sites is the Action Level method. Also, the identified factors that affect material stock control practice on construction sites have significant impact on building project performance in respect of cost, time and quality. Based on the findings, it was recommended that material stock control should be practised on all sites and by all categories of building construction firms in strict compliance with Action Level Method coupled with proper use of project bill of quantities, schedule of materials, construction programme, specification, proper stock accounting and security systems; also a competent and experienced personnel with basic managerial skills in material management should be engaged on site as store officer to enhance material stock control practice
World Species of the Genus Chromoteleia Ashmead (Hymenoptera, Platygastridae, Scelioninae)
The genus Chromoteleia was originally described by William H. Ashmead (1893), based on the colorful type species Chromoteleia semicyanea from the Caribbean island of Saint Vincent. Currently, six species have been recorded from the New World and a single species from Africa. One fossil species, C. theobaldi Maneval, was reported from Baltic amber (from 40~60 mya), but the status of this species is not clear. These creatures are parasites of insect eggs, but which host they attack is still unclear. Since its original description Chromoteleia has never been comprehensively reviewed. In this study, a total of 27 species are recognized worldwide, of which 21 are new to science. All species are described and illustrated. Several important morphological characters are provided for the identification of the species of Chromoteleia and the geographical distribution records of the genus are expanded to 29 countries in Central and South America, the Caribbean, and Africa. The documentation of the species diversity is crucial to the understanding of the evolution and interrelationships in this genus, as well as informing conservation policies
Evaluation of the angiotensin II receptor blocker azilsartan medoxomil in African-American patients with hypertension
The efficacy and safety of azilsartan medoxomil (AZL-M) were evaluated in African-American patients with hypertension in a 6-week, double-blind, randomized, placebo-controlled trial, for which the primary end point was change from baseline in 24-hour mean systolic blood pressure (BP). There were 413 patients, with a mean age of 52years, 57% women, and baseline 24-hour BP of 146/91mmHg. Treatment differences in 24-hour systolic BP between AZL-M 40mg and placebo (-5.0mmHg; 95% confidence interval, -8.0 to -2.0) and AZL-M 80mg and placebo (-7.8mmHg; 95% confidence interval, -10.7 to -4.9) were significant (P.001 vs placebo for both comparisons). Changes in the clinic BPs were similar to the ambulatory BP results. Incidence rates of adverse events were comparable among the treatment groups, including those of a serious nature. In African-American patients with hypertension, AZL-M significantly reduced ambulatory and clinic BPs in a dose-dependent manner and was well tolerated
Interpretation of the ORHASP Report for the Scarboro Community
The Oak Ridge Health Agreement Steering Panel (ORHASP) Report is a human health risk assessment of the effects of the activities of the three United States Department of Energy facilities in Oak Ridge, Tennessee. The period covered is 1944 to 1995. The study started in 1991 and it was completed in 1999. The ORHASP Report is available to the public.
This report has three goals. These follow: 1) To put relevant results from the ORHASP Report in a more readily and easily comprehended form.2) To examine some air intake parameters used in the ORHASP Report for the Scarboro Community.3) To check some risk and hazard index results for the Scarboro Community that were presented in the ORHASP Report.
This research was completed money allocated during Round 3 of the Citizens’ Monitoring and Technical Assessment Fund (MTA Fund). Clark University was named conservator of these works.
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