Academic literature on the topic 'Stem Borer Larvae'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Stem Borer Larvae.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Stem Borer Larvae"

1

Kumar, Neeraj, Amit Kumar Sharma, S. B. Das, Uttam Bisen, Naveen, and Subhashree Patnaik. "Influence of Abiotic Factors on the Population Dynamics and Species Composition of Stem Borer Complex in Rice Ecosystem." International Journal of Environment and Climate Change 14, no. 3 (2024): 217–26. http://dx.doi.org/10.9734/ijecc/2024/v14i34034.

Full text
Abstract:
A field experiment was carried out at the Murjhad Research Farm, College of Agriculture, Balaghat in Madhya pradesh during Kharif 2022 and Kharif 2023 to ascertain the population dynamics of stem borer complex, their relative abundance and correlation with abiotic factors in order to propose ecologically and financially feasible measures. Results pertaining to the dynamics of species composition of stem borers of rice reveal that all the three species of stem borer of rice viz., yellow stem borer, Scirpophaga incertulas (Walker), pink stem borer, Sesamia inferens (Walker), white stem borer, Sc
APA, Harvard, Vancouver, ISO, and other styles
2

Okweche, S. I., E. O. Ogunwolu, and M. O. Adeyemo. "Parameters, Interrelationships with Yield and use of Carbofuran to Control Stem Borers in Maize (Zea mays l.) at Makurdi in the Nigerian Southern Guinea Savanna." Greener Journal of Agricultural Sciences 3, no. 10 (2013): 702–8. https://doi.org/10.15580/GJAS.2013.10.170913845.

Full text
Abstract:
Early and late crops of flint, pop and sweet maize (<em>Zea mays L.</em>) were sown in field plots laid in randomized complete block design at the Teaching and Research Farm in 2004. Stem borer infestation and damage were assessed both in the plots treated with 1.5 kg carbofuran/ha and in those not treated for stem borer control. The maize types, as subplot treatments, and carbofuran application vs no application, as main plot treatments, were replicated four times. Borer damage was quantified as percentage dead-heart, bored stems, lodged stems, bored internodes, and as numbers of borer larvae
APA, Harvard, Vancouver, ISO, and other styles
3

Ehsan-Ul-Haq and C. Inayatullah. "Efficacy of Insecticides Against Overwintering Rice Stem Borer (Sb) Larvae." International Rice Research Newsletter 15, no. 4 (1990): 31. https://doi.org/10.5281/zenodo.7179438.

Full text
Abstract:
This article 'Efficacy of Insecticides Against Overwintering Rice Stem Borer (Sb) Larvae' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.
APA, Harvard, Vancouver, ISO, and other styles
4

G, PADHI. "Biochemical basis of resistance in rice to yellow stem borer,scirpophaga incertulas WLK." Madras Agricultural Journal 91, june (2004): 253–56. http://dx.doi.org/10.29321/maj.10.a00101.

Full text
Abstract:
Rice varieties TKM-6 and PTB-18 recorded lower borer incidence, larval survival and sugar content, but higher amount of total phenols, orthodehydroxy phenol and silica indicating their resistance to yellow stem borer (YSB) as compared to Jaya, the susceptible check. Irrespective of varieties, the sugar content of the stem tissue was the highest in maximum tillering stage, so also the borer incidence. However, the amount of phenolic compounds and silica increased significantly with the age of the plant, but the survival of the YSB larvae decreased as crop age advanced.
APA, Harvard, Vancouver, ISO, and other styles
5

Neupane, Saraswati, and Subash Subedi. "Life cycle study of maize stem borer (Chilo partellus Swinhoe) under laboratory condition at National Maize Research Program, Rampur, Chitwan, Nepal." Journal of Agriculture and Natural Resources 2, no. 1 (2019): 338–46. http://dx.doi.org/10.3126/janr.v2i1.26099.

Full text
Abstract:
Maize stem borer (Chilo partellus swinhoe) is one of the major threatening global pests of maize and considered as the national top priority entomological research problem in Nepal. The Life cycle of maize stem borer was studied under laboratory condition at National Maize Research Program (NMRP), Rampur, Chitwan, Nepal during 2018. Development of stem borer undergoes following stages like egg, larvae, pupa and adult. Eggs and different instars of maize stem borer larvae were collected from maize fields were put with host materials (maize leaf and stem) to become different instars of larva, pu
APA, Harvard, Vancouver, ISO, and other styles
6

Thamrin, Muhammad, S. Asikin, and M. A. Susanti. "BUDIDAYA PADI DI LAHAN RAWA PASANG SURUT DAN PENGARUHNYA TERHADAP PENGGEREK BATANG PADI." Jurnal Penelitian dan Pengembangan Pertanian 36, no. 1 (2017): 28. http://dx.doi.org/10.21082/jp3.v36n1.2017.p28-38.

Full text
Abstract:
&lt;p&gt;Rice cultivation in tidal swampland of South Kalimantan has been practiced by farmers in the long period and influences the population of rice stem borer. This paper describes rice cultivation in tidal swampland of South Kalimantan and its impact on injury level caused by rice stem borer. Land preparation by slashing and spinning the rest of rice crop and then left it to rot, can thwart rice stem borer larvae to become imago (adult). Seeding by transplanting several times can kill stem borer larvae, while cutting the leaves of rice seedlings before planting can reduce egg population o
APA, Harvard, Vancouver, ISO, and other styles
7

Sunita. "Effect of population dynamics on bark borer (Indarbela tetraonis Moore) in Guava (Psidium guajava L.)." APPLIED SCIENCE PERIODICAL XXV, no. 4, November 2023 (2023): 13–20. https://doi.org/10.5281/zenodo.13929662.

Full text
Abstract:
<em>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Guava (Psidium guajava L.) is quite popular fruit for each class of people in India. Uttar Pradesh is most important guava producing state of India where it covers an area of about 68547 acres. It grows well in a PH which may be ranging upto 9.5 in various soils. Indarbela larvae are wood borers. It is polyphagous insect and its larva bores into stem to about 15 to 25cm and feeds on the bark mostly during night under shelter of webs. Among &nbsp;five varieties of guava. It is observed that the average population was positively and significan
APA, Harvard, Vancouver, ISO, and other styles
8

Kumar, Harish. "Oviposition, larval arrest and establishment of Chilo partellus (Lepidoptera: Pyralidae) on maize genotypes during anthesis." Bulletin of Entomological Research 82, no. 3 (1992): 355–60. http://dx.doi.org/10.1017/s0007485300041146.

Full text
Abstract:
AbstractThe oviposition, larval arrest and establishment by the stem borer Chilo partellus (Swinhoe) were measured on different maize genotypes during anthesis. The maize genotypes tested were: Inbred A (Susceptible), Mp 704, MBR-8637, MBR-8650, MBR-8668, Poza Rica 7832, ER-29 SVR, Katumani Composite B, MMV 400, Bulk CG 4141, and ICZ2-CM. The moths oviposited on the middle leaves of the plant and the neonate larvae moved to leaf sheaths and ear husks to feed (arrest). As they grew older, the larvae invaded the stem, ear shanks and tassel to complete feeding (establishment) and to pupate. The r
APA, Harvard, Vancouver, ISO, and other styles
9

Aguirre-Rojas, Lina M., Lawrent L. Buschman, Brian McCornack, et al. "Inheritance of Antibiosis Resistance to the Dectes Stem Borer, Dectes texanus, in Soybean PI165673." Agronomy 11, no. 4 (2021): 738. http://dx.doi.org/10.3390/agronomy11040738.

Full text
Abstract:
Dectes texanus larvae girdles the stems of soybean and cultivated sunflowers causing significant yield losses in North America. The soybean Plant Introduction (PI) 165673 exhibits antibiosis resistance to the larval stage. The objectives of this study were: (1) to determine the inheritance of D. texanus resistance in PI165673; (2) evaluate PI165673 antibiosis resistance before 21 d post infestation; (3) evaluate girdling damage in PI16563 at the end of the season. K07-1544/PI165673 F2 and F2:3 populations were tested for resistance to D. texanus in 2011 and 2012, and PI165673 antibiosis resist
APA, Harvard, Vancouver, ISO, and other styles
10

Rhainds, Marc, Maarten Warndorff, Phang Kok Chiew, Chin Chiew Lan, and Gerhard Gries. "Stimuli increasing oviposition by female coffee white stem borer (Coleoptera: Cerambycidae)." Canadian Entomologist 133, no. 3 (2001): 409–12. http://dx.doi.org/10.4039/ent133409-3.

Full text
Abstract:
The coffee white stem borer, Xylotrechus quadripes (Chevrolat) is a major pest of coffee, Coffea arabica (L.) (Rubiaceae), in South Africa, India, Thailand, and China (Duffy 1968; Schoeman 1990; Visitpanich 1994; Montavon 1997). Females lay eggs singly or in batches, generally under bark crevices of the stem. Neonatal larvae feed beneath the bark and, during development, bore deeply inside the stem. Stems are colonized by up to 60 larvae. Extensive damage by larvae causes mortality of coffee plants or reduction of fruit production (Duffy 1968; GK veeresh). Because larvae inside the stems of co
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Stem Borer Larvae"

1

Brink, Daniël Erasmus. "Diversity of gut–microorganisms in Bt–resistant and Bt–susceptible larvae of the maize stem borer (Busseola fusca) (Lepidoptera: Noctuidae) / Daniël Erasmus Brink." Thesis, North-West University, 2012. http://hdl.handle.net/10394/8235.

Full text
Abstract:
Maize is one of Africa’s main food sources. It is therefore important to protect this crop against pests such as the maize stem borer Busseola fusca. Genetically modified Bacillus thuringiensis (Bt) maize has been shown to be very effective against pests like B. fusca. However, this pest developed resistance to Bt–maize. The current study was inspired by the lack of knowledge on microorganisms associated with these insects as they play a vital role in the growth and development of herbivorous insects. The aim of the study was to determine and compare the community diversity of microorganisms p
APA, Harvard, Vancouver, ISO, and other styles
2

Phiri, George S. N. "Interaction of the spotted stem border Chilo partellus (Swinhoe) with some alternative hosts and its larval parasitoid Cotesia sesamiae (Cameron) in Malawi." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262560.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Stem Borer Larvae"

1

Sunil Kr. Ghosh, Dr. "ENVIRONMENTALLY SOUND MANAGEMENT OF BRINJAL STEM BORER (EUZOPHERA PERTICELLA RAGONOT) FOR SAFE FOOD PRODUCTION." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 3. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcag3p1ch9.

Full text
Abstract:
Brinjal (Solanum melongena Lin.) is a seasonal vegetable crop and grows well in arid and semi-arid climatic condition. This crop is cultivated 2-3 times in a year. The fruit is the edible part and contains higher nutrition value and may compare with fruits of tomato. Different (mite, nematode etc) pests are responsible to limit in the successful production of its fruits. Large number of pests attack to eggplant/brinjal crop and reduce its yield which is a great problem to the farmers. Eggplant stem borer Euzophera perticella is an oligophagous insect observed many areas in Asia including India
APA, Harvard, Vancouver, ISO, and other styles
2

Schreiner, Olive. "Chapter III I was a Stranger, and Ye Took Me in." In The Story of an African Farm. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199538010.003.0004.

Full text
Abstract:
As the two girls rounded the side of the ‘kopje,’ an unusual scene presented itself. A large group was gathered at the back door of the homestead. On the door-step stood the Boer-woman, a hand on each hip, her face red and fiery, her head...
APA, Harvard, Vancouver, ISO, and other styles
3

Varoglu, Aysel, and İzzet Ari. "Implementation of Carbon Tax and Emissions Trading System in Türkiye." In Advances in Public Policy and Administration. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-9272-7.ch004.

Full text
Abstract:
The industrial revolution, which started with the invention of coal-fired steam engines, led to the intensive consumption of fossil fuels and environmental pollution all over the world. In the 1960s, the first international steps were taken to prevent environmental pollution. The main ones are the United Nations Framework Convention on Climate Change, the Kyoto Protocol, and the Paris Agreement. Building on the Paris Agreement, the European Union announced the Green Deal and prepared the carbon border adjustment mechanism in line with the objectives of the Deal. The peculiarity of this mechani
APA, Harvard, Vancouver, ISO, and other styles
4

Ruotsalainen Pekka and Pohjonen Hanna. "European Security Framework for Healthcare." In Studies in Health Technology and Informatics. IOS Press, 2003. https://doi.org/10.3233/978-1-60750-940-0-128.

Full text
Abstract:
eHealth and telemedicine services are promising business areas in Europe. It is clear that eHealth products and services will be sold and ordered from a distance and over national borderlines in the future. However, there are many barriers to overcome. For both national and pan-European eHealth and telemedicine applications a common security framework is needed. These frameworks set security requirements needed for cross-border eHealth services. The next step is to build a security infrastructure which is independent of technical platforms. Most of the European eHealth platforms are regional o
APA, Harvard, Vancouver, ISO, and other styles
5

"Fishery Resources, Environment, and Conservation in the Mississippi and Yangtze (Changjiang) River Basins." In Fishery Resources, Environment, and Conservation in the Mississippi and Yangtze (Changjiang) River Basins, edited by Gretchen L. Benjamin, Angeline J. Rodgers, and K. Jack Killgore. American Fisheries Society, 2016. http://dx.doi.org/10.47886/9781934874448.ch15.

Full text
Abstract:
&lt;em&gt;Abstract&lt;/em&gt;.—Ecosystem restoration of the Mississippi River main stem has been ongoing since the early 1970s. After the passage of environmental laws in the late 1960s to the early 1970s, private citizens and state and federal natural resource agency managers began to seek programs and funding for restoration and conservation that eventually resulted in mitigation measures of adverse impacts. Environmental-type actions that include the Great River Environmental Action Team, the Avoid and Minimize program, the middle Mississippi River biological opinion, and the lower Mississi
APA, Harvard, Vancouver, ISO, and other styles
6

Szivos, Alexander. "The landscape of digital service taxation." In Collection Regional Law Review. Institute of Comparative Law, 2025. https://doi.org/10.56461/iup_rlrc.2025.6.ch9.

Full text
Abstract:
The rapid expansion of the digital economy has fundamentally altered global business landscapes, compelling governments to reconsider traditional taxation frameworks. The Digital Services Tax (DST) has emerged as a pivotal policy tool designed to address the unique tax challenges posed by digitalization. DST specifically targets revenues generated by digital services, such as online advertising, social media platforms, and digital marketplaces, which often evade traditional tax regimes because of their intangible nature and cross-border operations. By focusing on large multinational corporatio
APA, Harvard, Vancouver, ISO, and other styles
7

Kobayashi, Shiro, Soo-Ik Oh, and Taylan Altan. "Sheet-Metal Forming." In Metal Forming and the Finite-Element Method. Oxford University Press, 1989. http://dx.doi.org/10.1093/oso/9780195044027.003.0014.

Full text
Abstract:
The stress-state is said to be plane when the direction normal to the plane is a principal stress direction and the magnitude of the stress in this direction is zero. This situation occurs when a sheet is loaded along its edges in the plane of the sheet. In-plane deformation of sheet metal, such as bore expanding and flange-drawing, is an example of plane-stress problems. For out-of-plane deformation of sheet metals, such as punch stretching, sheet bending, and cup drawing, a simple analytical method is the use of membrane theory. This theory neglects stress variations in the thickness directi
APA, Harvard, Vancouver, ISO, and other styles
8

Verma, D. P. S. "Developing Crops with Tolerance to Salinity and Drought Stress." In Feeding a World Population of More Than Eight Billion People. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195113129.003.0019.

Full text
Abstract:
Availability of water is the most important factor for crop productivity. A vast area (more than 50 million hectares) of agricultural land throughout the world suffers from recurring droughts, resulting in poor crop productivity (Carter, 1975). An equally large area of land is affected by high salinity. Even though irrigated agriculture has increased significantly during the past twenty years, the high capital cost of this process and the resulting increase in salinity is making this approach difficult to adopt. Furthermore, excessive irrigation is lowering the water tables, reducing water ava
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Stem Borer Larvae"

1

Pommier, Forrest, Emma Stewart, Mark Patterson, and Timothy Jacobs. "Investigating the Influence of Fueling Strategies and Spark on Combustion Instability for a Single Cylinder Two-Stroke Natural Gas Engine." In ASME 2024 ICE Forward Conference. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/icef2024-138935.

Full text
Abstract:
Abstract Emissions reductions are the primary driver for technological innovation in the gas compression industry with partial-fire and misfire events contributing significantly to the total output of hydrocarbons. A single misfire event in a large-bore two-stroke engine can be equivalent to over a hundred normal firing cycles. With government regulations continuing to restrict an engine’s allowable emissions, equipment manufacturers and operators are in search of solutions that can effectively and reliably reduce combustion instability, and understanding the root causes is an instrumental ste
APA, Harvard, Vancouver, ISO, and other styles
2

Saito, K., A. Sakuma, and M. Fukuda. "Recent Life Assessment Technology for Existing Steam Turbines." In ASME 2005 Power Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pwr2005-50345.

Full text
Abstract:
A large and growing portion of electricity is produced by aging thermal power plants. Although excellent, high quality materials such as CrMoV steel and 12% Cr steel, etc. are used for the steam turbines, various forms of metallurgical degradation, due to creep and fatigue, etc. affect the parts and components during long-term operation at high temperature. Extending the life of steam turbines and ensuring high reliability requires life assessment technology, scheduled repairing, conversion, modification and upgrading of components in order to provide a stable power supply. As the high tempera
APA, Harvard, Vancouver, ISO, and other styles
3

Blatherwick, Peter, and Peter E. Hallett. "Spatial distinctness measure for peripheral colored borders." In OSA Annual Meeting. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/oam.1987.tur6.

Full text
Abstract:
A novel spatial method is used to measure the distinctness of peripherally viewed chromatic and achromatic borders. The method determines the degree to which sharp (step-edged) borders must be blurred to be just noticeably different, using Gaussian blur and forced choice. Stimuli consist of 0.5-s duration, centrally fixated disks inserted in backgrounds of another color. This configuration provides maximal border length and large color fields. One achromatic and three isoluminous chromatic borders are tested at five retinal eccentricities from 1.25 to 20° and at both low photopic and mesopic l
APA, Harvard, Vancouver, ISO, and other styles
4

Kay, Brian. "Direct Contact Steam Generation Reduces Carbon Intensity." In SPE Improved Oil Recovery Conference. SPE, 2022. http://dx.doi.org/10.2118/209350-ms.

Full text
Abstract:
Abstract Steam for enhanced oil recovery is typically generated using Once-Through-Steam-Generators (OTSG) produced at large central facilities with the steam then pipelined to each injection well. As much as 50% of the energy can be lost before it reaches the well bore with the combustion emissions vented to atmosphere. Direct Contact Steam Generation (DCSG) injects both steam and hot combustion flue gases into the reservoir. Oil production is increased by reducing oil viscosity through heat while repressuring the reservoir with flue gases and improving miscibility with the CO2 that remains i
APA, Harvard, Vancouver, ISO, and other styles
5

Kay, Brian, Thomas Hartley, Stella Zhang, and Lisa Doig. "Direct Contact Steam Generation Reduces Carbon Intensity." In SPE Western Regional Meeting. SPE, 2022. http://dx.doi.org/10.2118/209287-ms.

Full text
Abstract:
Abstract Steam for enhanced oil recovery is typically generated using Once-Through-Steam-Generators (OTSG) produced at large central facilities with the steam then pipelined to each injection well. As much as 50% of the energy can be lost before it reaches the well bore with the combustion emissions vented to atmosphere. Direct Contact Steam Generation (DCSG) injects both steam and hot combustion flue gases into the reservoir. Oil production is increased by reducing oil viscosity through heat while repressuring the reservoir with flue gases and improving miscibility with the CO2 that remains i
APA, Harvard, Vancouver, ISO, and other styles
6

Killian, Doug, Samer Mahmoud, Heqin Xu, Silvester Noronha, and Ashok Nana. "A Study of the Key Parameters Affecting the Design of Optimized Weld Overlays." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-58035.

Full text
Abstract:
The potential for primary water stress corrosion cracking (PWSCC) of large diameter austenitic nickel alloy components and their associated welds presents a particular problem for the nuclear industry due to a limited number of available options for mitigating or repairing large bore pressure boundary components such as reactor vessel, reactor coolant pump, and steam generator inlet or outlet nozzles. While a full structural weld overlay (FSWOL), as governed by ASME Code Case N-740, is commonly used to mitigate and repair small (4″) to medium (10″) bore piping assemblies employing Alloy 82/182
APA, Harvard, Vancouver, ISO, and other styles
7

Shirai, Eiji, Kazutoshi Eto, Akira Umemoto, Toshiaki Yoshii, Masami Kondo, and Koichi Tai. "Inelastic Seismic Test of the Small Bore Piping and Support System: Part 3 — Simulation Analysis for the Piping Seismic Test." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61352.

Full text
Abstract:
Seismic safety is one of the major key issues of nuclear power plant safety in Japan. It is demonstrated that nuclear piping possesses large safety margins through the small bore piping and support system test, consisted of three dimensional piping, supports, U-bolts, and concrete anchorages, using the E-defense vibration table of National Research Institute for Earth Science and Disaster Prevention, Hyogo Earthquake Engineering Research Center at Miki city, by the extremely higher seismic excitation level [1, 2]. A simulation analysis for the piping system is described with a focus on the ine
APA, Harvard, Vancouver, ISO, and other styles
8

Shibukawa, Naoki, Tomohiko Tsukuda, Tadayuki Hashidate, Hiroyuki Kawagishi, Tatsuro Uchida, and Koichi Goto. "An Experimental Flow Investigation of Low Pressure Turbine Stages With Various Wet Conditions." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69613.

Full text
Abstract:
Detail flow characteristics of an actual size low pressure steam turbine stages under real operating conditions were examined in this paper. The main purpose of the experimental work was to obtain the radial distribution of the velocity triangles in the wet flow of the large size turbine, so that a series of tests were carried out with various wet conditions. Some particular changes of the flow pattern were observed at the exit of both the stator and the blade rows which would not predicted by steam turbine design tools. A kind of flow coefficient was defined and investigated as well as the st
APA, Harvard, Vancouver, ISO, and other styles
9

Ancelet, Olivier, Stephane Marie, Stéphane Chapuliot, and Aurore Parrot. "Application of the J-Q Methodology to Consider the Geometrical Effect on Fracture for Large Steam-Generator Tubesheet." In ASME 2023 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/pvp2023-106269.

Full text
Abstract:
Abstract In the frame of a Fracture Mechanics Assessement in the perforated part of the steam-generator tubesheet, a defect relying two holes is postulated, which represent a singular configuration compared to conventional FMA. Indeed the defect is relatively small in comparison to the plate thickness and the crack length is limited by the distance between two holes. To take benefit of the geometry effect of this configuration, an application of the two parameters J-Q approach is performed on tubesheet component. At first, the methodology was applied to define and validate the methodology on a
APA, Harvard, Vancouver, ISO, and other styles
10

Rehman, Sameer Abdul, Ahmed Alian, Anis Abbas, Qasim Khan, and Waleed Mekky. "Analytical Assessment and Mitigation Strategies for Vibration in High-Pressure and Temperature Piping Subjected to Wall Thinning." In ASME 2024 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/pvp2024-121313.

Full text
Abstract:
Abstract Critical high energy piping lines such as the Main Steam Lines of a Nuclear Power Plant are subject to high pressure, temperature, and flow rates. Operational activities on these lines can produce large dynamic loads that can cause vibration problems resulting in high stresses. High vibration in these critical lines can lead to leakages, support failures, small bore piping failures, or a main steam line break. In aging nuclear power plants, wall thinning due to corrosion can be a significant factor to consider in piping lines that are known to experience vibration. This paper provides
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Stem Borer Larvae"

1

Graziano, Alejandro, Georg Schaur, Christian Volpe Martincus, and Jerónimo Carballo. Endogenous Border Times. Inter-American Development Bank, 2016. http://dx.doi.org/10.18235/0011740.

Full text
Abstract:
We examine transaction-level Peruvian import data to show that firms are subject to significant costs of port-of-entry delays. At the transaction level, we observe the time it takes a shipment to clear each step in the entry process. Our theory shows conditions under which observed entry times are endogenous. As a result, total entry delays potentially lead to biased policy conclusions and non-informative efficiency rankings of countries' entry procedures. We make three empirical contributions that help unbundle sources for time costs in trade and border effects. First, we provide evidence tha
APA, Harvard, Vancouver, ISO, and other styles
2

Vieira, Greg, Titilope Banji, Rachel Lorenzen, and Daniel Olsen. PR179-21205-R01 Methane Abatement from LB NG 2-Stroke Cycle Engines Through In-Cylinder Modifications. Pipeline Research Council International, Inc. (PRCI), 2024. http://dx.doi.org/10.55274/r0000097.

Full text
Abstract:
There are over 7000 of large bore integral compressor engines distributed along the interstate and intrastate natural gas pipelines in the United States for gas compression. Methane emissions from large bore engines stem primarily from poor combustion efficiency. This study aims to improve the combustion efficiency of these engines, by reducing the amount of unburned methane that can escape through the crankcase vent and the exhaust gas emissions. Two broad approaches are taken to achieve this objective using experimental testing and computational studies: hydrogen blending and late cycle high
APA, Harvard, Vancouver, ISO, and other styles
3

Aguiar, Angel, and Terrie Walmsley. The Importance of Timing in the U.S. response to Undocumented Immigrants: A Recursive Dynamic Approach. GTAP Working Paper, 2013. http://dx.doi.org/10.21642/gtap.wp75.

Full text
Abstract:
In an attempt to control the flow of undocumented immigrants, successive US governments have considered everything from large scale deportation, amnesties, expanding visa programs, to fining firms who hire illegal workers. Using a comparative static model, Aguiar and Walmsley (2013), find that amnesties have a positive impact on the US economy. However such policies are one-time changes in the labor force, whose benefits diminish over time, and which are unlikely to stem the flow of undocumented workers or fulfill the demands of U.S. firms for cheap foreign labor. In this paper we use a global
APA, Harvard, Vancouver, ISO, and other styles
4

Boyle, M. Terrestrial vegetation monitoring at Chattahoochee River National Recreation Area: 2021 data summary. National Park Service, 2024. http://dx.doi.org/10.36967/2303257.

Full text
Abstract:
The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the NPS Inventory and Monitoring Program. The vegetation community vital sign is one of the primary-tier resources identi?ed by SECN park managers, and monitoring is conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks? natural vegetation. 2021 marked the ?rst year of conducting this
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!