221 research outputs found
An Evening with Dr. Venus Opal Reese, Motivational Speaker, Business Woman, and Author
No full textThis Droppin\u27 Knowledge Lecture Series will challenge the audience to defy the impossible . Dr. Venus Opal Reese will offer insight on how to achieve success on Thursday, September 17, at 6:30pm in Martin Luther King Hall-Thomas Pawley Theature, 812 E. Dunklin Street.
Reese, an inspirational speaker, business mentor and marketing strategist, offers training to professionals, particularly entrepreneurs and executives, on how to defy their impossible to reach million-dollar success. Reese has consulted for O Magazines, and appeared on ABC and CBS News. For more information on Dr. Venus Opal Reese, please visit http://defyimpossible.com
A comparison of rosseland-mean opacities from op and opal
No full textMonochromatic opacities from the Opacity Project (OP) have been augmented by hitherto missing inner-shell contributions. OP Rosseland-mean opacities, κR, are compared with results from OPAL for the six elements H, He, C, O, S and Fe. The OPAL data are obtained from the project's website. Agreement for H is close everywhere except for the region of log(T) 6 and log(R) −1 (R=ρ/T36 where ρ is mass density in g cm3 and T6= 106×T with T in K). In that region κR(OPAL) is larger than κR(OP) by up to 13 per cent. The differences are caused by different equations of state (EOS). In the region concerned, OP has the H ground state undergoing dissolution, leading to a small H-neutral ionization fraction, while OPAL has larger values for that fraction. A similar difference occurs for He at log(R) −1 and log(T) 6.4, where OP has the He+ ground state undergoing dissolution. The OPAL website does not provide single-element Rosseland means for elements other than H and He. Comparisons between OP and OPAL are made for mixtures with X= 0.9, Z= 0.1 and Z containing pure C, O or S. There are some differences: at the lower temperatures, say log(T) ≤ 5.5, owing to differences in atomic data, with the OP R-matrix data probably being the more accurate; and at higher temperatures mainly owing to differences in level populations resulting from the use of different EOS theories. In the original OP work, R-matrix data for iron were supplemented by data obtained using the configuration-interaction (CI) code superstructure. The experiment is made of replacing much of the original iron data with new data from the CI code autostructure. Inclusion of intercombination lines gives an increase in κR of up to 18 per cent. The OPAL website does not allow for Z containing pure iron. Comparisons are made for an iron-rich mixture, X= 0.9, Z= 0.1 and Z containing C and Fe with C:Fe = 2:1 by number fraction. There are some differences between OP and OPAL for that case: the OP 'Z-bump' in κR is shifted to slightly higher temperatures, compared with OPAL. Overall, there is good agreement between OP and OPAL Rosseland-mean opacities for the six elements, but there are some differences. Recent work has shown that helioseismology measurements give a very accurate value for the depth of the solar convective zone, RCZ, and that, taking account of recent revisions in abundances, solar models give agreement with that value only if opacities at RCZ are about 20 per cent larger than OPAL values. For the six-element mix at RCZ we obtain κR(OP) to be larger than κR(OPAL) by 5 per cent
Opal Walker postcard to Franklin County Woman Suffrage Association, October 26, 1914
No full textMiss Opal Walker sent this letter to the Franklin County Woman Suffrage Association on October 26, 1914. The purpose of her letter was to request literature materials about women's suffrage. She asked that the literature be sent by return mail.
The Franklin County Woman Suffrage Association was formed in 1912, after the Ohio Constitutional Convention elected to bring to a vote the question of removing the words "white male" from the state constitution with regard to voting rights. Headquartered in the Chamber of Commerce building in Columbus, Ohio, the organization put out regular publications, organized public speeches and meetings, distributed literature and held parades in support of the suffrage movement. Women's suffrage in Ohio was defeated in a special election in 1912 and again in 1914 and 1916 before a resolution narrowly passed in 1917 allowing municipal voting by women in Columbus. In 1920, the 19th Amendment passed, extending the vote to women and prohibiting state and federal government from denying suffrage on the basis of sex
Hurricane Opal: Poststorm beach and dune recovery
No full textThis plan was developed primarily to provide recommendations and cost estimates to assist in the post-Hurricane Opal recovery effort. Some related long term activities needed for management in this area are also included. Plan recommendations are based on a staff review and analysis of erosional conditions and recovery needs throughout the Florida Panhandle coastal zone for Escambia County through Franklin County. The recommended plan includes natural recovery in undeveloped and non-vulnerable areas, completion of beach clean up and debris removal, beach restoration in the Panama City Beach area, dune restoration in varying degrees throughout much of the Panhandle, includmg replacement of dune walkovers at public access locations. The plan also identifies the need for removal of debris from marine waters, for sand search and supplemental sand placement, for inlet management and improved sand transfer at inlets, for innovative technologies to assist recovery efforts, and recommendation for additional technical assistance, data collection and analysis related to the post-Opal recovery
Magnetic topology of Co-based inverse opal-like structures
No full textThe magnetic and structural properties of a cobalt inverse opal-like crystal have been studied by a combination of complementary techniques ranging from polarized neutron scattering and superconducting quantum interference device (SQUID) magnetometry to x-ray diffraction. Microradian small-angle x-ray diffraction shows that the inverse opal-like structure (OLS) synthesized by the electrochemical method fully duplicates the three-dimensional net of voids of the template artificial opal. The inverse OLS has a face-centered cubic (fcc) structure with a lattice constant of 640±10 nm and with a clear tendency to a random hexagonal close-packed structure along the [111] axes. Wide-angle x-ray powder diffraction shows that the atomic cobalt structure is described by coexistence of 95% hexagonal close-packed and 5% fcc phases. The SQUID measurements demonstrate that the inverse OLS film possesses easy-plane magnetization geometry with a coercive field of 14.0 ± 0.5 mT at room temperature. The detailed picture of the transformation of the magnetic structure under an in-plane applied field was detected with the help of small-angle diffraction of polarized neutrons. In the demagnetized state the magnetic system consists of randomly oriented magnetic domains. A complex magnetic structure appears upon application of the magnetic field, with nonhomogeneous distribution of magnetization density within the unit element of the OLS. This distribution is determined by the combined effect of the easy-plane geometry of the film and the crystallographic geometry of the opal-like structure with respect to the applied field direction.RRR/Radiation, Radionuclides and ReactorsApplied Science
Young, Opal Armitage Hoover (1900–1993)
No full textOpal Hoover Young was an English professor, author, editor of the Andrews University magazine Focus, and the first woman in the Michigan Conference to be ordained an elder.https://research.avondale.edu.au/esda/1549/thumbnail.jp
Immobilization of arabidopsis thaliana hydroxynitrile lyase (AtHNL) on EziG opal
No full textArabidopsis thaliana hydroxynitrile lyase (AtHNL) catalyzes the selective synthesis of (R)-cyanohydrins. This enzyme is unstable under acidic conditions, therefore its immobilization is necessary for the synthesis of enantiopure cyanohydrins. EziG Opal is a controlled porosity glass material for the immobilization of His-tagged enzymes. The immobilization of His6-tagged AtHNL on EziG Opal was optimized for higher enzyme stability and tested for the synthesis of (R)-mandelonitrile in batch and continuous flow systems. AtHNL-EziG Opal achieved 95% of conversion after 30 min of reaction time in batch and it was recycled up to eight times with a final conversion of 80% and excellent enantioselectivity. The EziG Opal carrier catalyzed the racemic background reaction; however, the high enantioselectivity observed in the recycling study demonstrated that this was efficiently suppressed by using citrate/phosphate buffer saturated methyl-tert-butylether (MTBE) pH 5 as reaction medium. The continuous flow system achieved 96% of conversion and excellent enantioselectivity at 0.1 mL min−1 . Lower conversion and enantioselectivity were observed at higher flow rates. The specific rate of AtHNL-EziG Opal in flow was 0.26 mol h−1 genzyme−1 at 0.1 mL min−1 and 96% of conversion whereas in batch, the immobilized enzyme displayed a specific rate of 0.51 mol h−1 genzyme−1 after 30 min of reaction time at a similar level of conversion. However, in terms of productivity the continuous flow system proved to be almost four times more productive than the batch approach, displaying a space-time-yield (STY) of 690 molproduct h−1 L−1 genzyme−1 compared to 187 molproduct h−1 L−1 genzyme−1 achieved with the batch system.BT/BiocatalysisQN/Kavli Nanolab Delf
OPAL: A Stereo Vision Obstacle Processing ALgorithm for a Walking Lunar Rover
No full textThe Lunar Zebro is a small six-legged robot. It has the potential to be used in a swarm carrying out objectives like exploring planetary surfaces. A new step towards autonomous navigation is made with the newly developed Obstacle Processing ALgorithm (OPAL) using primarily open-source libraries. This study showed that the initial iteration of OPAL could detect rocks and determine their absolute position to the rover’s low-positioned cameras using a stereo vision system. Obstacles and their relative distances are detected using the disparity map—the amount of shift of pixels in the stereo image pair. When translating the disparity to V-disparity, a histogram of the disparity per row, the ground and the obstacle could be isolated. It took six steps to realise this thesis goal. After setting the requirements, a test model, called Bars, was developed and tested at a location containing a Mars-like environment (Decos). This test model uses, along with Lunar Zebro’s hardware, mostly Commercial Off-The-Shelf products. With the footage, all the different components of OPAL were integrated into one algorithm. Hereafter, a pipeline on a server was created, and multiple test cases were run to establish results. The predetermined requirements of the algorithm were validated using measuring tape measurements and ground-truth bounding boxes tracked by a CSRT-algorithm. Together, Bars and the initial iteration of OPAL prove feasibility and expose opportunities and challenges, which could be a starting point for optimisations or other approaches.Aerospace Engineerin
Vardis Fisher Folder
No full text7 pages of family history documents containing and related to Vardis Fisher; Opal Laurel Holmes; - including: News articles; author; obit
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