Academic literature on the topic 'Dry stack'

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Journal articles on the topic "Dry stack"

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Barelli, L., G. Bidini, G. Cinti, F. Gallorini, and M. Pöniz. "SOFC stack coupled with dry reforming." Applied Energy 192 (April 2017): 498–507. http://dx.doi.org/10.1016/j.apenergy.2016.08.167.

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Sturm, Thomas, Luís F. Ramos, and Paulo B. Lourenço. "Characterization of dry-stack interlocking compressed earth blocks." Materials and Structures 48, no. 9 (July 18, 2014): 3059–74. http://dx.doi.org/10.1617/s11527-014-0379-3.

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Khan, Irfan, Akhtar Gul, Khan Shahzada, Nisar Ali Khan, Faisal Ur Rehman, Qazi Samiullah, and Muhammad Arsalan Khattak. "Computational Seismic Analysis of Dry-Stack Block Masonry Wall." Civil Engineering Journal 7, no. 3 (March 3, 2021): 488–501. http://dx.doi.org/10.28991/cej-2021-03091668.

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In this research the computational modeling of Dry-Stack Block Masonry (DSM) walls subjected to cyclic monotonic loading testing is done. The analytical results were compared with experimental test results of the unreinforced and unconfined DSM cantilever walls subjected to lateral loading along with a constant axial load. ABAQUS has been used for Finite Element Modeling and analysis of the wall. Various material properties are defined for the wall in the software and modeled as a homogeneous material. The proposed numerical models had a good correlation with the experimental data. The test results discussion includes failure moods, load displacement curves, and stress/strain profile. Doi: 10.28991/cej-2021-03091668 Full Text: PDF
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Fujiwara, Junsuke, Ryuichi Nagaura, and Tetsuya Tashiro. "Drilling of CFRP/Ti6Al4V Stack Board." International Journal of Automation Technology 7, no. 4 (July 5, 2013): 426–32. http://dx.doi.org/10.20965/ijat.2013.p0426.

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Drilling experiments with a CFRP/Ti6Al4V stack board were carried out using a TiAlN-coated cemented carbide drill, TiAlCr/TiSi-coated cemented carbide drill, and TiSiN-coated cemented carbide drill. Cutting experiments were carried out under a dry cutting process and water-mist-cooling process. Themain results obtained were as follows. The tool life of the TiAlCr/TiSi-coated cemented carbide drill was the longest among the three coated cemented carbide drills. The tool life under the water-mist-cooling process was longer than that under the dry process. Because the titanium alloy chips were much harder under the water-mist-cooling process, the cutting torque under this process became larger with an increase in tool flank wear compared to that under the dry process.
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Lin, Kun, Yuri Z. Totoev, and Hong Jun Liu. "In-Plane Cyclic Test on Framed Dry-Stack Masonry Panel." Advanced Materials Research 163-167 (December 2010): 3899–903. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3899.

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A new masonry system has been developed to improve the seismic behaviour of RC frame with masonry panels. In this system dry-stack masonry panels are built with masonry units capable of sliding in-plane of a panel. These masonry panels have reduced in-plane stiffness but increased frictional energy dissipation capacity compared with the traditional masonry panels. Under seismic or wind loads these panels do not detrimentally interfere with natural RC frame response but rather positively contribute to it mainly by increasing dumping. A cyclic test has been performed to evaluate the behaviour of this masonry system. Test results demonstrate that the new system can improve the seismic behaviour of RC frame structures with masonry panels.
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Simon Araya, Samuel, Sobi Thomas, Andrej Lotrič, Simon Lennart Sahlin, Vincenzo Liso, and Søren Juhl Andreasen. "Effects of Impurities on Pre-Doped and Post-Doped Membranes for High Temperature PEM Fuel Cell Stacks." Energies 14, no. 11 (May 21, 2021): 2994. http://dx.doi.org/10.3390/en14112994.

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In this paper, we experimentally investigated two high temperature polymer electrolyte membrane fuel cell (HT-PEMFC) stacks for their response to the presence of reformate impurities in an anode gas stream. The investigation was aimed at characterizing the effects of reformate impurities at the stack level, including in humidified conditions and identifying fault features for diagnosis purposes. Two HT-PEMFC stacks of 37 cells each with active areas of 165 cm2 were used with one stack containing a pre-doped membrane with a woven gas diffusion layer (GDL) and the other containing a post-doped membrane with non-woven GDL. Polarization curves and galvanostatic electrochemical impedance spectroscopy (EIS) were used for characterization. We found that both N2 dilution and impurities in the anode feed affected mainly the charge transfer losses, especially on the anode side. We also found that humidification alleviated the poisoning effects of the impurities in the stack with pre-doped membrane electrode assemblies (MEA) and woven GDL but had detrimental effects on the stack with post-doped MEAs and non-woven GDL. We demonstrated that pure and dry hydrogen operation at the end of the tests resulted in significant recovery of the performance losses due to impurities for both stacks even after the humidified reformate operation. This implies that there was only limited acid loss during the test period of around 150 h for each stack.
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Lin, Kun, Yuri Totoev, Hongjun Liu, and Chunli Wei. "Experimental Characteristics of Dry Stack Masonry under Compression and Shear Loading." Materials 8, no. 12 (December 12, 2015): 8731–44. http://dx.doi.org/10.3390/ma8125489.

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He, Xi Xi, and Ye Lin. "Research on Compressive Strength of Grouted Dry-Stack Concrete Block Masonry." Applied Mechanics and Materials 638-640 (September 2014): 202–7. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.202.

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Compressive strengths of full-grouted dry-stack concrete block masonry were tested. Contribution of block and grouted concrete in carrying capacity of the masonry were analyzed through compressive strength data of 18 specimens. Related masonry capacity formulas were recommended accordingly.
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Hussain, Muhammad Mustafa, Seung-Chul Song, Joel Barnett, Chang Yong Kang, Gabe Gebara, Barry Sassman, and Naim Moumen. "Plasma-Induced Damage in High-$k$/Metal Gate Stack Dry Etch." IEEE Electron Device Letters 27, no. 12 (December 2006): 972–74. http://dx.doi.org/10.1109/led.2006.886327.

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Jacobs, JL, RJ Morris, and J. Zorrilla-Rios. "Effect of ensiling whole barley grain with pasture on silage quality and effluent production, and the performance of growing cattle." Australian Journal of Experimental Agriculture 35, no. 6 (1995): 731. http://dx.doi.org/10.1071/ea9950731.

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Pasture was ensiled with increasing amounts of whole barley in stacks [0, 75 (SLB), 150 (SMB) kg/t fresh pasture] or in 200-L drum silos 10, 75 (DLB), 150 (DMB), 225 (DHB) kg/t fresh pasture]. All silages were well fermented with low pH values and low ammonia concentrations. The addition of barley significantly (P<0.05) increased the dry matter content of the resultant stack silages by 29% (SLB) and 54% (SMB) and significantly (P<0.05) increased residual water-soluble carbohydrate levels in the SMB silage compared with untreated stack silage. Incorporation of barley with pasture in 200-L silos significantly (P<0.001) increased the dry matter of the resultant silages and significantly (P<0.01) reduced effluent production by 55, 93, and 100% for DLB, DMB, and DHB compared with the untreated silo silage. Dry matter, nitrogen, and lactic acid concentrations in effluent did not differ significantly, although total losses of these components were significantly (P<0.01) higher in the untreated silage.| The stack silages were fed to beef steers (293 kg) and compared with silage diets containing equivalent levels of rolled barley mixed with untreated silage at feeding. Irrespective of method of feeding barley, animal performance improved compared with feeding a silage-only diet. At equivalent levels of barley inclusion, liveweight gains were higher and feed conversion ratios lower with the rolled barley diets. The results indicate that the addition of barley to low dry matter pasture during ensiling can reduce effluent production and the loss of soluble nutrients; however, it is likely that the grain will need to be processed to maximise subsequent animal production.
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Dissertations / Theses on the topic "Dry stack"

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Murray, Eric B. "Dry Stacked Surface Bonded Masonry - Structural Testing and Evaluation." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2188.pdf.

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Eixenberger, Joseph G. "Seismic Analysis of and Provisions for Dry-Stack Concrete Masonry Wall Systems with Surface Bond in Low-Rise Buildings." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6547.

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Masonry is one of the oldest forms of construction materials that is still in use today. However, construction practices in the modern age demand faster and more economical practices. Dry-stack masonry, or masonry that doesn't use mortar to bind the blocks together, is a unique system to make masonry more economical. Though several systems of dry-stack masonry have been suggested little to no data exists as most of these systems are patented. This research used dry-stacked normal weight concrete masonry units with an eccentrically placed reinforcement. The wall system is connected through a surface bond and lacks any geometric connection. Previously, research has been conducted on the wall system for its axial compressive capacity, but little information is known about its ability to withstand lateral forces such as earthquakes. Research was conducted on the wall system in order to determine the seismic parameters, including the force reduction factor, overstrength factor, and the displacement amplification factor. To determine these factors the guidelines from the Federal Emergency Management Agency (FEMA) Quantification of Building Seismic Performance Factors 2009 were followed. The guidelines are explicit that both experimental data and computer modeling are needed to quantify these parameters. Experimental data was obtained from a diagonal tension test, and an in-plane shear test. The diagonal tensions test provided preliminary values on the shear modulus and shear resistance. The in-plane shear test was of primary interest and what would be used to verify the computer model. Computer modeling of the wall system was accomplished with Vector 2. Initially the computer modeling was done to reproduce experimental data. Then, a parametric study was performed using the model to see what component of the wall most effected its capacity. This analysis showed that the surface bond was the component of the wall that most affects its capacity. Finally, the computer model was run through the FEMA Far-Field earthquake suite to gather data on the strength and ductility. Values of the force reduction factor, overstrength factor, and displacement amplification factor were determined based on the time history analysis and pushover analysis on the computer model.
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Herskedal, Nicholas Anthony. "Investigation of Out-of-Plane Properties of Interlocking Compressed Earth Block Walls." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/916.

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Interlocking compressed earth blocks (ICEBs) are cement stabilized soil blocks that allow for dry stacked construction. The incomplete understanding of the inelastic performance of ICEB building systems limits widespread acceptance of this structural system in earthquake prone areas. This thesis presents results from an experimental program designed to explore the behavior of ICEB walls, built according to current design practice in Indonesia and Thailand, and subjected to out-of-plane loading. A total of five reinforced and grouted ICEB walls were constructed and tested. Results from experimentation show the current masonry design code, ACI 530, adequately predicts the yield strength of these walls. However, ACI 530 grossly over-predicts the ICEB wall stiffness. All tests showed flexural behavior and failure, except for one wall. A brittle failure was observed in one wall before reaching the predicted flexural strength, prompting a suggested maximum shear tie spacing. The testing results provide useful data for developing analytical models that predicts the seismic behavior of ICEB walls under out-of-plane loading. A moment-curvature relationship was developed that accurately predicts the behavior of these walls in the elastic range as well as the inelastic range. By comparing the data provided by two walls of similar sizes, one including a pilaster and one without a pilaster, insight into stiffener elements was gained. Analysis of these two walls provides a limit on the length and height of ICEB walls without stiffener elements to prevent significant structural damage during a seismic event. In all, conclusions based on experimental data from ICEB out-of-plane loading tests are aimed to provide suggestions for ICEB construction in areas of high-seismicity.
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Bland, David William. "In-Plane Cyclic Shear Performance of Interlocking Compressed Earth Block Walls." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/495.

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This thesis presents results from testing of interlocking compressed earth block (CEB) masonry shear walls. CEBs are low strength earth masonry units sometimes stabilized with cement or lime. The interlocking compressed earth blocks (ICEBs) used in this experiment are dry stacked interlocking hollow units, which can be reinforced and grouted after they are laid. Although significant research has been undertaken to optimize the material properties of CEBs, little has been done to investigate the performance of structural systems currently being built using this technology. Test results are reported for three 1800 mm x 1800 mm wall specimens constructed with cement stabilized ICEBs and subjected to cyclic in-plane lateral loading. Wall specifications were varied to identify the shear performance of partial and fully grouted walls, and to observe the performance of a flexure dominated wall panel. It was determined that the shear strength of fully grouted walls is significantly higher than that of partially grouted walls and calculation of capacity based on current ACI 530-08 masonry provisions significantly overestimates the shear strength of ICEB wall panels. Based on the observed performance, recommendations are made for limiting the calculated nominal shear strength in design. Results also indicate that calculations based on simple bending theory conservatively predict the flexural strength of a fully grouted ICEB wall. Discussion of ICEB material properties and recommendations for design and construction procedures are included.
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Ambers, Steven Ellis. "In-Plane Shear Wall Performance as Affected by Compressed Earth Block Shape." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1705.

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This thesis investigates the in-plane shear performance of full-scale walls made from compressed earth blocks. Compressed earth blocks are a type of masonry where the blocks are composed of compressed soil and typically dry-stacked without mortar. Prior research has demonstrated that the in-plane shear strength of these blocks falls far short of capacities predicted by conventional masonry building codes, requiring new testing to develop effective and safe designs for seismic conditions. This thesis specifically studies the effects of block type and the use of grouted shear keys at the block head joints. Three full-scale walls were constructed and tested under in-plane, cyclic loading. To compare the effect of block type on shear strength, one wall was constructed from Rhino blocks as used by the Center for Vocational Building Technology, while another used V-Lock blocks designed by the Vermeer Corporation. Apart from differences in size and interlock mechanism, the standard Rhino blocks have shear keys at the head joints which are not present on the V-Lock blocks. To examine the effect of these shear keys, a third wall was built from Rhino blocks with the shear keys removed. The two standard block types displayed no major difference in strength that could not be attributed to grouted area or the presence/absence of the head joint shear keys. The Rhino block wall with shear keys reached a higher peak load relative to the grouted area but experienced a brittle drop in capacity after peaking, while the other two walls exhibited an extended loading plateau after the initial peak. All walls failed with cracking and block sliding along the main diagonals, a failure mode similar to conventional masonry. Proposals are made for modifying the equations for shear capacity from the Masonry Standards Joint Committee (MSJC) 2013 code for use in designing compressed earth block shear walls.
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Forth, Stephen. "Advocating Silence." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/52638.

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The buildings people inhabit everyday frame their existence and provide a backdrop for life. This relationship is inextricable and, as such, begs the question as to whether buildings can function as more than mere containers for life or whether they, at some point or in some capacity, can begin to bare influence over the life or quality of life of their patrons. This project is an intention to explore this qualitative, unquantifiable aspect of building. Through a manipulation of volume and mass, constriction and expansion, solid and void, light and shadow, and the qualities of interiority and exteriority an occupied space will begin to impress itself upon the user. The main objective of this project is to use these architectural properties to create a place that fosters introspection through self awareness. By choosing presence over practicality and content over convention, the construct proposed in this thesis attempts to create spaces that are imposing and unfamiliar yet somehow emotionally reminiscent. Confronted by these contradictions and juxtapositions, this building will stand as an object, in opposition to the occupant, and through that opposition inspire and promote a greater awareness of, and possibly a reflection upon, normally unconscious thought processes.
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Dodson, Alan Michael. "Horizontal Forest: A Retreat on the AT." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35328.

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This is a project about reconciling the rational world of architecture with the empirical world of nature. A small retreat on the Appalachian Trail near Dragon's Tooth, this project employs two elements belonging to each of those entities. The retreat is composed of a double envelope. The exterior envelope is a wooden screen and dry stacked stone wall relating to the natural world. In contrast, the second envelope is a glass and steel box, analogous to the rationality of man. Dimensional 2x4 lumber models are employed to study the light conditions, patterns, and construction of the wooden screen.
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Islam, Md Amirul, Biplob Chowdhury, and Md Amirul Islam. "The behavior of stock price on ex-dividend day : A study on New York Stock Exchange and London Stock Exchange." Thesis, Umeå universitet, Handelshögskolan vid Umeå universitet, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-44996.

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The main aim of this thesis is to analyze the behavior of stock price on ex-dividend day in London Stock Exchange and New York Stock Exchange and draw a conclusion about the market efficiency based. We collect 200 sample companies dividend, ex-dividend day and cum dividend day stock price to compare with NYSE composite index and FTSE 100 for London Stock Exchange.   To answer the research question and specific purpose of our thesis we developed five null hypothesis based on raw price ratio (RPR), market-adjusted price ratio (MAPR), raw price drop ratio (RPD), market-adjusted price drop ratio (MAPD) and market-adjusted abnormal return (MAAR). We used t-statistic to find the mean differences between observed values and standard values. We also show multiple regression analysis to show the relationship between ex-dividend day stock price and dividend, cum-dividend day stock price.   This thesis documented that same amount of stock price drop in 2008 New York Stock Exchange compare with dividend amount. In this case our null hypothesis accepted. On the other hand in London Stock Exchange shows higher drop of stock price than dividend amount in 2008 against the taxation rate rules of prior study. In 2007 both stock market shows the less drop of stock price than dividend amount. Therefore our null hypothesis rejected. We also documented that London Stock Exchange more volatile than New York Stock Exchange to consider the MAAR, tax rate and standard deviation. So we find significant evidence of market abnormal return which create an opportunity of market inefficiency and arbitrage opportunity for investors.   So, our thesis output shows mixed evidence for London Stock Exchange and New York Stock Exchange.
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Anagho, Zillah, and Kenneth Tah. "THE EX-DIVIDEND DAY STOCK PRICE BEHAVIOR : FTSE 100 of the London Stock Exchange." Thesis, Umeå University, Umeå School of Business, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1229.

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In this thesis, we have analyzed the ex-dividend stock price behavior in the London Stock Exchange to see if the stock prices really drop by the same amount as the dividend on the ex-dividend day. Our sample data covers 80 FTSE100 companies of the London stock exchange for the period 2001 to 2006.

To answer the research question: Do returns on the London Stock Exchange act in accordance with the efficient market hypothesis on the ex-dividend day? We used a deductive approach and test four hypothesis. The study was carried out by comparing the actual value of the raw price ratio, market adjusted price ratio, raw price drop and market adjusted price drop to their theoretical values. The difference was tested for significance using the one sample t-test.

The results showed that there are significant differences in the observed figures from their theoretical or expected values. The observed raw price ratio is higher than the expected value of 1, implying that the stock price on the ex-dividend day drops by an amount that is lower than the dividend paid. Similarly, the market adjusted raw price ratio is also higher than the expected value of 1. The raw price drop and market adjusted price drop are lower than the dividend yield, indicating again that the stock price drops by an amount that is lower than the dividend paid.

Our results indicated that the null hypotheses stated are rejected since the drop in the stock prices is not equal to the amount of the dividend on the ex-dividend day.

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Su, Xun, and Mei Ting Cheung. "Day-of-the-week eects in stock market data." Thesis, KTH, Matematisk statistik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103863.

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The purpose of this thesis is to investigate day-of-the-week effects for stock index returns. The investigations include analysis of means and variances as well as return-distribution properties such as skewness and tail behavior. Moreover, the existences of conditional day-of-the-week effects, depending on the outcome of returns from the previous week, are analyzed. Particular emphasis is put on determining useful testing procedures for differences in variance in return data from different weekdays. Two time series models, AR and GARCH(1,1), are used to find out if any weekday's mean return is different from other days. The investigations are repeated for two-day re- turns and for returns of diversified portfolios made up of several stock index returns.
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Books on the topic "Dry stack"

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Gallagher, A. Robert. Building dry-stack stone walls. Atglen, PA: Schiffer, 2008.

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Jerome, Jerry. Dry storage: The marinas' answer to water access. Skokie, IL (3949 Oakton, St., Skokie 60076): Van Zevern Publications, 1990.

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Mockus, Steve. Stick Man's very bad day. San Francisco: Chronicle Books, 2012.

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Harris, Jennifer Beck, 1952- ill., ed. The day the lifting bridge stuck. New York: Bradbury Press, 1992.

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Lantry, Eileen E. Broken stick: Mission to the forbidden islands. Hagerstown, MD: Review and Herald Pub. Association, 2010.

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Broken stick: Mission to the forbidden islands. Hagerstown, MD: Review and Herald Pub. Association, 2010.

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One in thy hand: The stick of Judah and the stick of Joseph. Springville, Utah: CFI, 2006.

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Chan, Louis K. C. Institutional trades and intra-day stock price behavior. [Urbana, Ill.]: College of Commerce and Business Administration, University of Illinois at Urbana-Champaign, 1991.

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Chan, Louis K. C. Institutional trades and intra-day stock price behavior. [Urbana, Ill.]: College of Commerce and Business Administration, University of Illinois at Urbana-Champaign, 1992.

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Sheila, Walsh. Gabby's stick-to-it day: A story about never giving up. Nashville, Tenn: Tommy Nelson, 2012.

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Book chapters on the topic "Dry stack"

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Naik, Pratyusha, and Arun Menon. "Structural Behaviour of Dry Stack Stone Corbelled Vaults Under Lateral Support Movement." In RILEM Bookseries, 540–48. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-99441-3_58.

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Watanabe, Tomohide, Motohito Hayashi, Akira Takahashi, Hitoki Matsuda, and Masanobu Hasatani. "SO2 Removal from Stack Gases by High Temperature Dry Process with High Reactive Ca-Mg Based Sorbents." In Gas Cleaning at High Temperatures, 510–21. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2172-9_32.

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Khliupko, Viktor. "Technology Stack." In Magento 2 DIY, 7–11. Berkeley, CA: Apress, 2016. http://dx.doi.org/10.1007/978-1-4842-2460-1_2.

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Golovin, Daniel, Vineet Goyal, and R. Ravi. "Pay Today for a Rainy Day: Improved Approximation Algorithms for Demand-Robust Min-Cut and Shortest Path Problems." In STACS 2006, 206–17. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11672142_16.

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Francioni, Reto. "Mid-Day Address: The Modern Exchange Organization." In The Economic Function of a Stock Exchange, 33–42. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-10350-1_3.

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Krinitz, Jonas, and Dirk Neumann. "Decision Analytics for Initial Public Offerings: How Filing Sentiment Influences Stock Market Returns." In Market Engineering, 45–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66661-3_3.

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AbstractCompanies issuing stocks through an initial public offering (IPO) are obligated to publish relevant information as part of a prospectus. Besides quantitative figures from accounting, this document also contains qualitative information in the form of text. In this chapter, we analyze how sentiment in the prospectus influences future stock returns. In addition, we investigate the impact of pre-IPO sentiment in financial announcements on first-day returns. The results of our empirical analyses using 572 IPOs from US companies suggest a negative link between words linked to uncertainty and future stock market returns for up to 10 trading days. Conversely, we find that uncertainty expressed in pre-IPO announcements is positively linked to first-day stock returns. These insights have implications for research on IPOs by demonstrating that future stock returns are also driven by textual information from the prospectus and assist investors in placing their orders.
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Msangi, Josephine Phillip. "Role of Small-Stock in Safeguarding Food Security in Dry Lands: Case in Namibia." In Food Security Among Small-Scale Agricultural Producers in Southern Africa, 105–27. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09495-3_5.

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Cayres, Bruno, Cesar da Fonseca, Adriano Santos, and Hans I. Weber. "Analysis of Dry Friction-Induced Stick-Slip in an Experimental Test Rig Modeling a Drill String." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics, 195–204. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_16.

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Jaruszewicz, Marcin, and Jacek Mańdziuk. "One Day Prediction of NIKKEI Index Considering Information from Other Stock Markets." In Lecture Notes in Computer Science, 1130–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-24844-6_177.

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Claes, M., Vasile Paraschiv, S. Beckx, M. Demand, W. Deweerd, Sylvain Garaud, H. Kraus, et al. "Selective Wet Removal of Hf-Based Layers and Post-Dry Etch Residues in High-k and Metal Gate Stacks." In Solid State Phenomena, 93–96. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/3-908451-06-x.93.

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Conference papers on the topic "Dry stack"

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Bethapudi, Sasank Viswanath, N. Rajalakshmi, and K. S. Dhathathreyan. "PEMFC Stack Activation Through Thermal Management." In ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 7th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fuelcell2013-18203.

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Activation of PEM fuel cell stack is an important factor in setting peak power of stack before its steady operations. Several methods of activation for larger capacity stacks involve operation of the stacks initially at low voltages under highly humidified conditions and at high temperatures. This is expected to improve proton conductivity of the membrane. For large area cells this method can create hot spots due to high current and non-uniform temperature distribution. Hence, an alternative approach for activating PEMFC stack at low current for vehicular applications has been investigated in this study. Conventional stack activation requires continuous supply of coolant. However for vehicular applications, a closed loop thermal management system is required. During the course of developing such a close loop thermal management system for transportation application, we have identified that the same system can be used in activating a PEM fuel cell stack. In the present study a 5kW PEMFC stack, operating on dry reactants, has been activated using a closed loop thermal management system. The activation has been carried out over a period of 620 minutes with 6 start/stop cycles. Through the start stop cycles the power delivered by the stack steadily increased from 2.5kW, to 5kW. Further, heat developed inside the fuel cell, as removed by the coolant water, has been studied and there is a proportional increase in the overall heat removed by the coolant to the total power delivered by the fuel cell. The start stop cycles are regulated based on the single cell voltages and stack temperature. Each cycle is stopped when the stack temperature reaches a set temperature of 50°C. The advantage of this procedure is that it will result in long life of the fuel cell stack, uniform membrane equilibration, and will avert hot spot generation in the electrodes at low cell potential.
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Amoah, Nelson, Waldo Dressel, and Andries Fourie. "Characterisation of unsaturated geotechnical properties of filtered magnetite tailings in a dry stack facility." In 21st International Seminar on Paste and Thickened Tailings. Australian Centre for Geomechanics, Perth, 2018. http://dx.doi.org/10.36487/acg_rep/1805_31_amoah.

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Stockdale, Gabriel, Gabriele Milani, and Vasilis Sarhosis. "Irrecoverable collapse time for a fixed-hinge dry-stack arch under constant horizontal acceleration." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2019 (ICCMSE-2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5138009.

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Fujita, Kenjiro, Yoshio Matsuzaki, Hisataka Yakabe, Shoji Yamashita, Kei Ogasawara, and Teruhiro Sakurai. "Development of Segmented-in-Series SOFC Stacks Using Numerical Models and Parametric Study." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97178.

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The voltage loss in a single cell of a segmented-in-series flat-tube-type solid oxide fuel cell (SOFC) stack was evaluated. The stack exhibits a particular configuration, and the current flows along an in-plane direction in the anode and cathode; this differs from conventional planar-type SOFCs. Distributions of the current in the cell were studied in detail for many parameters such as the length of electrodes and conductivities of the cell components. Gas diffusion in a porous substrate and anode and the fuel utilization affect the concentration polarization; thus, they were also considered. By using the simulation results, appropriate configurations for the cell and stack were designed, and the simulation was validated by performance tests for a practical fuel cell stack. The stack exhibited a high performance of 0.76 V at 0.2 A/cm2 at Uf = 81.6% with dry H2 fuel, yielding a DC energy conversion efficiency of 53.6% HHV. Moreover, a bundle comprising 34 stacks was also fabricated, and excellent values of output voltage (342.5 V), output power (338.3 W), and electrical efficiency (49.5% HHV) at a current density of 0.2 A/cm2 were obtained.
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Miley, George H., Nie Luo, and Kyu-Jung Kim. "A Dry-Borohydride/Injected-Hydrogen-Peroxide Fuel Cell." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33259.

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The design and testing of a 20-W (average power with short pulses to 45W) prototype fuel cell is presented. This cell is intended as an auxiliary power supply for a small robotic vehicle. The energy density exceeds 300 Watt-hour/kg. This cell is essentially a dry-borohydride/injected-hydrogen-peroxide fuel cell. This enables extremely long shelf life prior to use. The anode utilizes dry NaBH4 for storage while the cathode chamber is empty during storage. The initiation of cell operation is done by injection of the oxidizer, an aqueous H2O2 solution (stored in a separate container) to the cathode side of the fuel cell. The ionic conduction required for membrane operation is initially helped by the H2O content from the H2O2 solution. Once the electrochemical reaction starts, more water is generated as the reaction product and this continues to maintain a good ionic conductance over the run time of the cell. Continued operation is done with auxiliary fuel tanks to maintain very long run time when required. Once a run is over, the cell can be drain, flushed clean and returned to storage waiting for the next mission. The experimental details of such a cell stack are described in this paper.
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Meshreki, M., A. Damir, A. Sadek, and M. H. Attia. "Investigation of Drilling of CFRP-Aluminum Stacks Under Different Cooling Modes." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67039.

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Drilling of stacks poses great challenges due the heterogeneity and abrasiveness of the composites, the chip evacuation through the stack, in addition to the difference in properties between the metallic and the composite materials. The objective of this paper is to investigate the effect of drilling conditions such as tool material and geometry and lubrication mode on the hole quality as well as the tool wear in drilling of composite stacks (Carbon Fiber Reinforced Plastics CFRP-Aluminum). The thickness of each material was 19 mm. A 2-flute uncoated drill was used. Four different cooling modes were applied namely dry, minimum quantity lubrication (MQL) with low pressure (<1.5 bar) and high flow rate (400 ml/hr), MQL with high pressure (4.25 bars) and low flow rate (10 ml/hr), and finally flood cooling. The process control parameters, namely the forces and temperatures were measured using a special fixture design using a Kistler dynamometer and a reflective system with an infrared camera. The quality of the holes was compared in terms of delamination, surface roughness, circularity, concentricity, and diameter errors. The resultant cutting forces were found to be much lower than the thrust forces. The mean forces in the Aluminum were more than double those in the CFRP. Negligible tool wear was observed (less than 60 μm). No indication of thermal damage was found on the circumference of the holes in all the tested conditions. Due to the fact that the CFRP was supported by the Aluminum stack, the exit of the holes was mostly free from delamination. The dry and flood conditions produced holes free from entry delamination, while the holes drilled with MQL had delamination within 24% of the hole diameter. Both MQL cooling modes resulted in comparable temperatures, forces and hole quality.
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Pine, Thomas, Anh-Tuan V. Do, Li Zhao, and Jacob Brouwer. "Operation of a Novel Dry Hydrocarbon Tolerant Intermediate Temperature Solid Oxide Fuel Cell." In ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2009. http://dx.doi.org/10.1115/fuelcell2009-85094.

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Many factors including lower materials cost for stack and balance of plant components drive an effort to reduce the operating temperature of SOFCs. Sr- and Mg-doped LaGaO3 (LSGM) has gained popularity as an intermediate temperature electrolyte due to its high oxygen conductivity. However, challenges remain regarding its mechanical strength and the lack of suitable electrode materials due to incompatibilities with conventional anode and cathode materials. Additionally, operation of conventional solid oxide fuel cells on dry hydrocarbon gas streams is precluded by the catalyzed formation of carbon whiskers within the matrix of nickel-based anodes. The incompatibility of LSGM with conventional anodes allows for investigation of other benefits of a Ni free anode; among which are hydrocarbon tolerance and redox stability. LSGM electrolyte supported cells were fabricated to test the performance and hydrocarbon tolerance of a Ni-free materials set. The composite anode was comprised of Sr-, Mg- and Co-doped LaGaO3 (LSGMC), La-doped CeO2 (LDC) as a catalytic component and Y-doped SrTiO3 as a conductive component. The cathode was made from a composite of LSGMC and Sm-doped SrCoO3. Materials were synthesized by wet chemical methods, characterized and fabricated into durable cells of high quality. The processing conditions of anode conductive components are discussed as an important factor impacting the performance of the cells. The cells were tested in dry methane and hydrogen. Testing showed cell voltages very near theoretical voltage indicating that sealing and electrolyte quality were excellent. Temperature cycling performance and post-test inspection showed that durability of the materials set was achieved. The cell showed a low power density when operating on hydrocarbons directly. Cells had no visible degradation in performance or coking after operation on dry hydrocarbons, in stark contrast to nickel-based anode performance under the same operating conditions. Poor catalytic activity to the reforming process and direct reaction of methane were found to contribute to the overall low performance. Strategies for improving catalytic activity without introducing coke-promoting materials are discussed.
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Tsui, Tien-I., and Nathan B. Rich. "Air Pollution Control System Retrofit Experience at Wasatch Energy Systems." In 10th Annual North American Waste-to-Energy Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/nawtec10-1005.

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Wasatch Energy Systems owns and operates two (2) mass burn incinerators each rated at 210 tons/day in Layton, Utah. Each incinerator was equipped with a three field Electrostatic Precipitator (ESP) to control the particulate emissions. Dry sorbent (trona) was injected just upstream of the economizer to control acid gas emissions. The performance of the dry sorbent injection system was marginal. In anticipation of the upcoming EPA emission guidelines, 40 CFR Part 60, Subpart BBBB, Emission Guidelines for existing small municipal waste combustion units, Wasatch Energy Systems decided to update the existing APC systems several years ahead of the schedule. A request for proposal was released in October 1999 and eight proposals were received by the facility. AirPol Inc. of Parsippany, NJ was awarded a turnkey contract in June 2000 to add a dedicated Gas Suspension Absorber (FLS miljo Inc GSA) upstream of each existing ESP. A common lime slurry storage and preparation system, carbon storage and delivery system, ash conveying system, MCC, and control system were also provided under the contract. The new APC system was commissioned and put into service in September, 2001. Initial stack testing was conducted in October 2001 to evaluate system performance. Compliance stack testing was conducted for the Utah Division of Air Quality in November 2001. Results of testing demonstrate that particulate, metals, acid gas and dioxin/furan emissions from the retrofit facility are substantially lower than required under, now final, 40 CFR Part 60, Subpart BBBB – Class 1 Emission Limits for Existing Small Municipal Waste Combustion Units. This paper discusses the retrofit system design and performance.
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Morgan, V. T. "Variation of the dielectric properties of a multilayer stack of dry kraft paper with air pressure, mechanical pressure, temperature and time duration." In Seventh International Conference on Dielectric Materials, Measurements and Applications. IEE, 1996. http://dx.doi.org/10.1049/cp:19961063.

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Chae, Jongmin, and Sangseok Yu. "A Study of Water Transport of Hollow Fiber Membranes Over Various Operating Conditions." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88067.

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A membrane humidifier is a device to provide water vapor into the proton exchange membrane fuel cell stack that is used for transportation application due to global warming. Since inadequate humidification severely affects the performance and durability of a fuel cell stack, it is necessary to equip the humidifier for delivery humidification into the fuel cell vehicle. In this study, the performance of humidification in hollow fiber membrane is investigated. While the test section is exposed to external humidity condition, dry air is provided through hollow fiber membrane so that the water transport is facilitated. Since various parameters can change the performance, the performance investigation has to be carried out with parameters. In this study the water transport of hollow fiber membrane is investigated in terms of principle operating conditions such as temperature, pressure, and flow rate.
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Reports on the topic "Dry stack"

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Hayashi, Fumio, and Ravi Jagannathan. Ex-Day Behavior of Japanese Stock Prices: New Insights from New Methodology. Cambridge, MA: National Bureau of Economic Research, August 1990. http://dx.doi.org/10.3386/w3421.

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Nelson, Margot, Michael Antonioni, Vincent Santucci, and Justin Tweet. Oxon Run Parkway: Paleontological resource inventory; supplement to the National Capital Parks-East paleontological resource inventory. National Park Service, August 2021. http://dx.doi.org/10.36967/nrr-2287217.

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Oxon Run Parkway (OXRN) is a 51-hectare (126-acre) natural area within Washington, D.C. administered by the National Park Service under National Capital Parks East (NACE). The original plan called for a road, slated to follow Oxon Run stream, but this never came to fruition; despite this, the moniker stuck. The majority of the original Oxon Run Parkway is managed by the District of Columbia. The section of Oxon Run Parkway under NPS jurisdiction contains wetlands and forests, as well as the only McAteean magnolia bogs still remaining in the District. The lower Cretaceous Potomac Group, known as one of the few dinosaur-bearing rock units on the east coast of North America, crops out within Oxon Run. One of the most prevalent fossil-bearing resources are the siderite, or “bog iron” sandstone slabs that sometimes preserve the footprints or trackways of various vertebrates, including dinosaurs. Such trackways have been reported from Potomac Group outcrops throughout the Atlantic Coastal Plain of Maryland and Virginia. In 2019, National Capital Parks-East took possession of such a track, referred to a dinosaur, collected by paleontologist Dr. Peter Kranz. This report was compiled after a paleontological survey of Oxon Run Parkway and is intended as a supplement to the National Capital Parks East Paleontological Resource Inventory (Nelson et al. 2019). This report contains information on the history of Oxon Run Parkway and its geology, as well as discussion of the fossil track.
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Comparison of a dry stack with existing generator exhaust systems for prevention of carbon monoxide poisonings on houseboats. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, August 2001. http://dx.doi.org/10.26616/nioshephb17128a.

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