199,875 research outputs found
Distinguishing Offshore Drilling Safety Improvement through Engineered New Technologies versus Mandates & BAST ��� MPD Example
No full textPresentationOffshore drilling processes (personnel, methods & equipment) increase in complexity, yet improve continually by implementing new technology that brings enhanced safety via wellbore management. MPD ��� managed pressure drilling technology is one set of new techniques that provides multiple benefits, including measurement, detection, and mitigation of small wellbore influxes, and discrimination of these influxes from well kicks that require standard BOP well control practices (early kick detection). While quite applicable to some wells, and beneficial in certain portions of a well, MPD, similar to other new technologies, should not be mandated or considered BAST for every well or hole size. Using MPD as an example, this paper will discuss how offshore drilling safety is enhanced by a new technology, while distinguishing how mandated methods and technologies may reduce safety effectiveness
The locus coeruleus-norepinephrine system as pacemaker of attention - a developmental mechanism of derailed attentional function in autism spectrum disorder
No full textACM Transactions on Information Systems : Vol. 32, No. 2, April 2014
No full text1. Efficient Index-Based Snippet Generation / H. Bast, M. Celikik
2. Modelling Term Associations for Probabilistic Information Retrieval / J. Zhao, J.X. Huang, Z. Ye
3. Social-Sensed Image Search / P. Cui, et al.
4. Theoritical, Qualitative and Quantitative Analyses of Small-Document Approaches to Resources Selection / I. Markov, F. Crestan
Kairomonal Response of Predators to Three Pine Bast Scale Sex Pheromones
No full textAbstract The kairomonal activity of the sex pheromones of three pine bast scales, Matsucoccus feytaudi, Matsucoccus josephi, and Matsucoccus matsumurae, as well as a new analog of the M. feytaudi sex pheromone, were investigated in pine forests o
STRATEGI PEMANFAATAN PROGRAM BRIGADE ALAT DAN MESIN PERTANIAN (BAST)
No full textThe tool and agricultural machinery brigade (BAST), a movement formed between elements of the government, regional government, the ranks of the TNI, farmer institutions and the driving force of agricultural modernization is expected to optimize Alsintan\u27s distribution to farmers. The agricultural machinery and machinery brigade (BAST) program provides another alternative to the lack of use of tools available at the farmer. This research was conducted in Mukti Sari Village, North Luwu Regency. All data and information obtained using the APPAS method (Development Planning Analysis). The results of this analysis indicate that the main problem is that the needs of Alsintan users have not been fulfilled. The main problem is due to a short loan period, there has been no effort in the approach to BAST, and the tool operator is out of focus. This main problem causes the investment of Gapoktan in procuring its own equipment to be low. To solve this problem, we need to fulfill the main objectives, namely the needs of Alsintan users by farmers. This main objective is achieved if the loan lending period increases, there are efforts in the approach to BAST, and the workforce of the operator focuses on work. The main target is to raise Gapoktan investment in the procurement of its own high equipment. The actions needed to achieve the main goal, namely to submit an application for the addition of a loan period, appoint workforce to coordinate with BAST and supervise operator performance. Keywords: Planning, Development, Case.The tool and agricultural machinery brigade (BAST), a movement formed between elements of the government, regional government, the ranks of the TNI, farmer institutions and the driving force of agricultural modernization is expected to optimize Alsintan\u27s distribution to farmers. The agricultural machinery and machinery brigade (BAST) program provides another alternative to the lack of use of tools available at the farmer. This research was conducted in Mukti Sari Village, North Luwu Regency. All data and information obtained using the APPAS method (Development Planning Analysis). The results of this analysis indicate that the main problem is that the needs of Alsintan users have not been fulfilled. The main problem is due to a short loan period, there has been no effort in the approach to BAST, and the tool operator is out of focus.
Mononchus truncatus Bast. 1865
No full text<p> <b>Mononchus</b> truncatus Bast. 1865.</p> <p>Fig. 11 (a-c)</p> <p> (= <i>M</i>. <i>macrostoma</i> Bast. 1865 = <i>M</i>. <i>longicaudatus</i> Cobb 1893)</p> <p> Espèce cosmopolite dont le mâle est très <b>rare</b> et que ÿai eu la chance de retrouver.</p> <p> J. B. Goodey qui a examiné mes exemplaires a établi le tableau suivant Selon Goodey cc tableau confirme les synonymies ci-dessus. Les* mesures de mes spécimens diffèrent de celles de Cobb pour <i>M</i>. <i>longícaudatus</i> en fait elles diffèrent, tant pour la longueur de la cavité buccale que pour sa largeur, de toutes les autres mensurations. Le rapport de la longueur dent sur la largeur de la cavité est inférieur. Par ailleurs, la position de la dorsal-e correspond à ce que Clank a donné pour son néotype. De plus enfin, mes exemplaires présentent comme chez le nèotype, de fines striations transversales au fond de la cavité buccale. La queue de mes spécimens, toujours selon Goodey (in litt. 1 1965 965) SB rapproclıe fortement de celle figurée par Cobb 1917, pour <i>M</i>. <i>longícaudatus</i>, de même que le nombre des papilles du mâle rentrent dans le cadre des variations pour Pespèce en cause.</p>Published as part of <i>Edmond Altherr & Delamare Deboutteville, C., 1972, Nematodes interstitiels des eaux douces des Etats-Unis d'Amerique (Etats de Washington, du Colorado et du Massachusetts) recoltes par Cl. Delamare Deboutteville, pp. 738-743 in ANNALES de SPÉLÉOLOGIE 27 (4)</i> on page 743, DOI: <a href="http://zenodo.org/record/10723490">10.5281/zenodo.10723490</a>
Preparation and Characterization of Microcellulose and Nanocellulose Fibers from Artemisia Vulgaris Bast
No full textArtemisia vulgaris is an economic plant that is spreading widely in central China. Its unused bast generates a large amount of biomass waste annually. Utilizing the fibers in Artemisia vulgaris bast may provide a new solution to this problem. This research attempts to strengthen the understanding of Artemisia vulgaris by analyzing its fiber compositions and preparing micro- and nano-cellulose fibers, which can be used as raw materials for composites. In this work, Artemisia vulgaris bast powder (AP) and microcellulose and nanocellulose fibers (AMFs and ANFs) were produced and characterized by optical microscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric analysis (TG), and bacteriostatic test. The results indicated that cellulose, hemicellulose, and lignin were the main components in the Artemisia vulgaris bast. The cellulose content reached 40.9%. The Artemisia vulgaris single fibers were microcellulose fibers with an average length of 850.6 μm and a diameter of 14.4 μm. Moreover, the AMF had considerable antibacterial ability with an antibacterial ratio of 36.6%. The ANF showed a length range of 250–300 nm and a diameter of 10–20 nm, and it had a higher crystallinity (76%) and a lower thermal stability (initial degradation temperature of 183 °C) compared with raw ANF (233 °C). This study provides fundamental information on Artemisia vulgaris bast cellulose for its subsequent utilization
Era of bast fibers-based polymer composites for replacement of man-made fibers
No full textBast fibers are defined as those obtained from the outer cell layers of the bast of various plant families. They are finding use in textile applications and are widely used as reinforcements for green composites, as bast fibers are perceived as “sustainable”. There is a growing demand for bast fibers across the world due to their renewable and biodegradable nature. The bast fibers are mainly composed of cellulose, which potentially considers the growing techniques, harvesting and extraction processes of bast fibers most used to produce fibers with appropriate quality to apply in the daily lives of modern men and women in contemporary society. This review paper looks at many aspects of natural fibers, with a focus on plant bast fibers, including their impact on prehistoric and historical society. This review shows that bast fibers are competitive compared to man-made fibers in many applications, but variability in mechanical properties and low tenacity may limit their use in high-strengthh composites and extend to, particularly in aerospace, automotive, packaging, building industries, insulation, E-composites (Eco composites), geotextiles and many other applications are currently being explored. Considering, important characteristics of bast fibers include physical, mechanical, and chemical properties. This makes bast fibers one of the most important classes of plant fibers to use as reinforcing agents in thermosetting/thermoplastic polymer matrices. And the effect of bast fibers as reinforcement in the properties of ECO-composites, GREEN-composites, BIO-composites, lightweight composites. Bast fibers play an important role in sustainability, the preservation of the health of the environment, the well-being of the next generation, and even the daily lives of men and women in the contemporary world
Kenaf bast-unsaturated polyester composite: The effect of different alkaline treatment condition on tensile properties
No full textLink to publisher's homepage at http://www.ttp.net/The biocomposites were prepared by using kenaf bast fiber mat as reinforcing materials at different percentage. The kenaf bast fiber was treated with alkaline at different sodium hydroxide (NaOH) percentage. Composites which were made from treated alkaline kenaf treated bast fiber showed better mechanical properties (tensile) than those of the unmodified. Scanning electron microscope analysis showed the evidence of the enhancement of the compatibility between kenaf bast fiber and the matrix. The percentage of kenaf fiber in composites also plays a crucial role in determining the composite properties
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
- …
