Relevant bibliographies by topics / Emiter

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Emiter'

Author: Grafiati
Published: 28 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Emiter"

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Ariandi, Lalu Muhammad, Guyup Mahardhian Dwi Putra, and Sirajuddin Haji Abdullah. "ANALISIS KOMPOSISI SERBUK GERGAJI TERHADAP KONDUKTIVITAS HIDROLIK PIPA MORTARI IRIGASI TETES BAWAH PERMUKAAN TANAH (Analysis of Sawdust Ratio on Hydraulic Conductivity in Subsurface Mortari Pipe of Drip Irrigation )." Jurnal Ilmiah Rekayasa Pertanian dan Biosistem 6, no. 1 (March 22, 2018): 39–52. http://dx.doi.org/10.29303/jrpb.v6i1.70.

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Mortari emitter of sawdust (SG) can solve problem faced by farmers in dryland on irrigating their land. Aim of this research was to design an emitter by determining its mixture ratio and thickness. This research used experimental method by conducting experiment in laboratory. Observed parameters to determine water discharge were flow velocity, hydraulic conductivity value, coefficient of variation, and coefficient of uniformity. Ratio of cement, sand and sawdust to made sawdust (SG) mortari emitter were varied, i.e. P1 (1:2:2); P2 (2:1:3); P3 (2:4:4); P4 (2:2:2); and P5 (2:3:1). Result showed that the hydraulic conductivity could be classified as very low since K < 0.0036 cm/hour. The water discharge, flow velocity, and coefficient of uniformity were decreased in every reservoir elevation. Sawdust (SG) mortar emitter of P5 had the highest seeping ability and P3 had the lowest. The coefficient of uniformity (CU) value was 78,74%-80.64%. The use of Sawdust (SG) mortar emitter can be adjusted to the water discharge required by any plant type. The P3 emitter is suitable for plant which requires low water discharge and the P5 emitter is suitable for the high one. Keywords: water discharge, SG mortar emitter, hydraulic conductivity ABSTRAK Emiter mortari serbuk gergaji (SG) dapat memecahkan masalah yang dihadapi para petani lahan kering dalam mengairi lahannya. Tujuan dilakukan penelitian ini adalah dapat merancang sebuah emiter dengan menentukan komposisi dan ketebalan emiter. Metode yang digunakan dalam penelitian ini adalah metode eksperimental dengan percobaan laboratorium. Parameter untuk menjawab tujuan penelitian adalah mencari nilai debit aliran yang dapat dihasilkan emiter mortari SG dengan menentukan kecepatan aliran, nilai konduktivitas hidrolik, koefisien variasi dan koefisien keseragaman. Emiter mortari SG dalam pengujian dilakukan dengan mencampurkan semen, pasir, dan serbuk gergaji masing-masing dengan 5 perbandingan, yaitu P1 (1:2:2); P2 (2:1:3); P3 (2:4:4); P4 (2:2:2); dan P5 (2:3:1). Nilai konduktivitas hidrolik didapatkan hasil pengkelasan dalam kategori sangat rendah karena memiliki nilai K<0,0036 cm/jam. Debit aliran, kecepatan aliran, dan koefisien keseragaman mengalami penurunan setiap ketinggian reservoir. Dimana emiter mortari SG dengan perlakuan P5 memiliki kemampuan merembeskan air dengan nilai tertinggi dan P3 pada emiter dengan kemampuan terendah. Nilai koefisien keseragaman pada emiter mortari SG terdapat keragaman dengan nilai CU sebesar 78,74%-80,64 %. Penggunaan emiter mortari SG dapat disesuaikan dengan jumlah kebutuhan debit air yang dibutuhkan oleh jenis tanaman. Emiter P3 baik digunakan pada tanaman dengan debit air rendah dan emiter P5 baik untuk tanaman dengan debit air tinggi. Kata kunci: debit aliran, emiter mortari SG, konduktivitas hidrolik
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Reskiana, Budi Indra Setiawan, Satyanto K. Saptomo, and Popi Redjekiningrum Dwi Mustatiningsih. "Uji Kinerja Emiter Cincin." Jurnal Irigasi 9, no. 1 (April 28, 2015): 63. http://dx.doi.org/10.31028/ji.v9.i1.63-74.

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Kerbatasan air menyebabkan pemanfaatan lahan kering belum maksimal dalam mendukung produksi pertanian di Indonesia. Teknologi irigasi hemat air dengan biaya yang terjangkau petani perlu terus dikembangkan. Penelitian ini bertujuan menghasilkan emiter irigasi berbentuk cincin yang dapat diletakkan di bawah permukaan tanah. Dalam penelitian ini diuji bahan berpori dari beberapa jenis kain yang permeabilitasnya menyerupai permeabilitas tanah pertanian. Diperoleh 5 jenis kain, yaitu jenis Legacy mempunyai permeabilitas 1.54 cm/jam, Colosal 0.76 cm/jam, Parasut 0.06 cm/jam, Kyramat 5.28 cm/jam dan Veronica 8.16 cm/jam. Jenis kain ini digulung menutupi selang air berlobang (diameter 5 mm dan jarak antar lubang 10 cm) yang dibentuk seperti cincin (emiter cincin). Emiter cincin ini kemudian diuji mengairi pot-pot tanaman melon dalam rumah kaca. Hasilnya, emiter cincin yang dibalut kain jenis Legacy dan Colossal mempunyai produktivitas air yang lebih tinggi, masing-masing 0.64 kg/m3 dan 1.90 kg/m3 dengan debit rata-rata 0.52 liter/jam dan 1.08 liter/jam.
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Saefurrochman, Agus Purwadi, Suprapto, Ihwanul Aziz,. "Penentuan Parameter Elektron Plasma Bejana Emiter Berbasis Besar Arus Lucut Busur Gas Udara." Risalah Fisika 4, no. 1 (July 14, 2020): 27–32. http://dx.doi.org/10.35895/rf.v4i1.173.

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Abstrak – Telah dilakukan penentuan parameter elektron plasma dalam Bejana Emiter (BE) berbasis besar arus lucut busur gas udara pada tegangan 10 kV untuk Ignitor Discharge Power Supply (IDPS) dan tegangan anoda 1 kV untuk Arc Discharge Power Supply (ADPS). Tekanan gas udara divariasi mulai dari 5,70 × 10-3 Torr hingga 7,90 × 10-3 Torr. BE terbuat dari Stainless Steel-304 (SS-304) silinder berdiameter ф = 4,00 cm dan panjang l = 66 cm, dipasangi grid berukuran 60 cm × 2,6 cm dan ditutup dengan frame yang terdiri dari 15 grup lubang (masing-masing berisi 10 lubang kecil berdiameter ф = 0,4 cm). Dari hasil eksperimen pada tekanan gas udara sekitar 6,8 × 10-3 Torr diperoleh arus berkas elektron pulsa terekstraksi sebesar 4,17 A pada tegangan tinggi ekstraksi 5 kV. Berdasarkan arus elekton terekstraksi tersebut, diperoleh kerapatan elektron plasma ne sebesar 3,15 × 1012 partikel/cm3 dan suhu elektron plasma Te sebesar 1,77 × 104 K ≈ 1,50 eV.Kata kunci: emitter, plasma, bejana emiter (BE), lucutan, kerapatan, suhu Abstract – The determination of plasma electron parameters in the Emitter Vessel (EV) based on arc dischage value of air gas has been conducted at 10 kV of Ignitor Discharge Power Supply (IDPS) and 1 kV of anode voltage for Arc Discharge Power Supply (ADPS). The air gas pressure was varied from 5.70 × 10-3 Torr to 7, 90 × 10-3 Torr. The EV was made from Stainless Steel-304 (SS-304) cylindrical shape with diameter ф of 4.00 cm and length l of 66 cm, fitted with 60.00 cm × 2.60 cm grid and covered with a frame consisting of 15 groups of holes (each containing 10 holes small diameter ф of 0.4 cm). From the experiment result at the average air gas pressure of about 6.80 × 10-3 Torr, it was obtained 4.17 A of extracted pulse electron beam current at 5 kV of extracted high voltage. Based on that extracted electron beam current, it was obtained 3.15 × 1012 particles/cm3 of plasma electron density ne and 1.77 × 104 K ≈ 1.50 eV of plasma electron temperature Te. Key words: emitter, plasma, emmiter vessel (EV), discharge, density, temperature
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Czopik, Grzegorz. "Wykorzystanie sensor�w radiowych w procesie lokalizacji emiter�w." ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA 1, no. 5 (May 5, 2014): 44–48. http://dx.doi.org/10.15199/ele-2014-022.

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Idrus, Muhammad Idrus, and Surya Surya. "Penerapan Irigasi Tetes Emiter Tali Dengan Bebagai Selang Waktu Irigasi Pada Tanaman Semangka." Jurnal Penelitian Pertanian Terapan 19, no. 2 (January 13, 2020): 128. http://dx.doi.org/10.25181/jppt.v19i2.1447.

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The objectives of the research were (1) To know watermelon yield and irrigation water productivity of watermelon by used drip irrigation with nylon rope emitter on various time irrigation intervals, (2) To determined the good time irrigation interval for watermelon production by using the drip irrigation with nylon rope emitter. The research was conducted at the research field with four-time irrigation intervals were 1,2,3, and 4 days of time irrigation interval. The research was arranged in Completely Randomized Block Design. The result of the research showed that the time irrigation interval was not significantly affected yield and irrigation water productivity of watermelon. The soil moisture in the root zone at 30 cm depth of 23,23—23,88% before irrigation still in range of the available soil moisture content for plants. The average of watermelon yield and irrigation water productivity of watermelon were 5,07—5,45 kg/plant and 115,15—123,79 kg/m3. The good time interval of irrigation for watermelon production by using drip irrigation with rope emitter was 4 days time interval of irrigation.
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Czopik, Grzegorz. "Wst�pne badania algorytmu lokalizacji aktywnych emiter�w wewn�trz budynk�w." ELEKTRONIKA - KONSTRUKCJE, TECHNOLOGIE, ZASTOSOWANIA 1, no. 2 (February 5, 2015): 64–67. http://dx.doi.org/10.15199/13.2015.2.14.

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Idrus, Muhamad, Andre Velthuzend, Didik Kuswadi, Suprapto Suprapto, and I. Gde Darmaputra. "Kinerja Irigasi Tetes Tipe Emiter Aries Pada Tanaman Pisang Cavendhis Di Pt Nusantara Tropical Farm." Jurnal Penelitian Pertanian Terapan 18, no. 1 (July 28, 2018): 33. http://dx.doi.org/10.25181/jppt.v18i1.342.

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This research was conducted in PT Nusantara Tropical Farm ( PT NTF) at Jepara, Margosakti, Labuhan Ratu, East Lampung District. The plants which were cultivated in PT NTF such as Cavendish banana, pineapple, crystal guava, and naga fruit. The irrigation being used to irrigated cavendish banana is drip irrigation method with Aries emitter type. Watering method of drip irrigation system that used for Cavendish banana is cross watering and block watering methods. The goals of this research were to determine the performance of drip irrigation line for Cavendish banana by using both kinds of watering method. The performance indicator of irrigation system included the conveyance efficiency, the uniformity coefficient, the length time irrigation, and the amount of fuel consumption for diesel machine of a pump. The result of this research showed that the value of the conveyance efficiency of drip irrigation with cross watering method was 90,2% and 80,0% for block watering method. The uniformity coefficient on cross watering method was 87,55% and 97,10% for block watering method. The amount of fuel consumption for 10,46 ha area with cross watering method was 29,49 l and 40,52 l for 10,2 ha area with block watering method.
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Rejekiningrum, Popi, and Satyanto Krido Saptomo. "Analisis Kelayakan Finansial Pengembangan Sistem Irigasi Cakram Otomatis Bertenaga Surya di Nusa Tenggara Barat." Jurnal Irigasi 10, no. 2 (September 17, 2015): 125. http://dx.doi.org/10.31028/ji.v10.i2.125-136.

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Penelitian implementasi teknologi irigasi hemat air menggunakan sistem irigasi otomatis yang berbentuk emiter melingkar(cakram/cincin) bertenaga surya telah dilakukan. Untuk mengetahui kelayakan investasi pembuatan sistem irigasi cakram otomatis bertenaga surya, dilakukan analisis Net Present Value (NPV), Internal Rate of Interest (IRR), dan Benefit Cost Ratio (BCR). Suatu investasi dikatakan layak bila memenuhi kriteria sebagai berikut: (1) NPV lebih besar dari nol, (2) IRR lebih besar dari discount rate yang sedang berlaku, (3) BCR lebih besar dari 1. Hasil analisis menunjukkan bahwa sistem irigasi cakram otomatis bertenaga surya untuk pengembangan komoditas mangga, srikaya, anggur, dan cabe sangat layak untuk dilaksanakan, dengan nilai NPV dari investasi berkisar antara Rp 1.533.423,00 – Rp 21.995.452, nilai BCR antara 1,34 - 3,78, dan nilai IRR antara 17,38% - 34,10%. Implementasi sistem irigasi cakram otomatis bertenaga surya dengan pengembangan srikaya dan mangga paling layak dikembangkan di Pringgabaya dengan nilai NPV, BCR, dan IRR paling tinggi. Sedangkan implementasi irigasi cakram otomatis dengan hanya mengembangkan cabe tidak layak secara finansial karena nilai NPV < 0, nilai BCR < 1, dan nilai IRR < suku bunga 14%. Investasi pembuatan irigasi otomatis dengan sistem cakram rata-rata kembali modal pada tahun ke-4 hal ini tercermin dari nilai payback period (periode kembali modal).
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Sueb, Memed. "TRANSAKSI AFILIASI DAN CAPITAL INTENSITY MEMPENGARUHI EMITEN DALAM MENGHINDARI PAJAK." Ultimaccounting : Jurnal Ilmu Akuntansi 12, no. 1 (June 19, 2020): 116–33. http://dx.doi.org/10.31937/akuntansi.v12i1.1651.

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Abstract- Target of tax for several last year show increase positive as need of fund on State Budget. But on the other hand of emiten which listing in stock exchange Indonesia always comply to efisiensy of tax as tax planning. That is way by this research expected to find solution about what was variable effect to emiten comply tax efisiensy. Target of population were emiten which stock exchange for 3 year periode 2015 until 2017. Purposive sampling was choose to find out research data. The research selected 54 emiten as sample for representative of emitens. Tax avoidance was measured by proxy effective tax rates; affiliated transaction was measured by liabilities transaction affiliated. Hyphotesis was examined by multiple regression dan decision that: 1) Transaction affiliated affect emiten Industry manufacturing sector listed in Indonesia Stock Exchange during period in 2015-2017 for comply tax avoidance. Emitens have indication often make transaction with group (affiliated) for tax avoidance; 2) Capital intensity not affect emiten manufacturing sector listed in Indonesia Stock Exchange during period in 2015-2017 for comply tax avoidance. Emitens listed in Bursa Efek Indonesia higest invested on fixed asset not objective for tax avoidance but to support operating activity inclined rise. Keywords: Affiliated Transaction, Capital Intensity, Tax Avoidance,
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Germershausen, Sven, Lars Bartholomäus, Ulf Seidel, Norbert Hanisch, Anja Schieferdecker, Karl Heinz Küsters, Martin Kittler, Mawuli Ametowobla, Florian Einsele, and Gerald Dallmann. "Investigation of Emitter Homogeneity on Laser Doped Emitters." Energy Procedia 8 (2011): 232–37. http://dx.doi.org/10.1016/j.egypro.2011.06.129.

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Dissertations / Theses on the topic "Emiter"

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Tomešová, Tereza. "Autonomní jednokanálový deinterleaving." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445470.

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This thesis deals with an autonomous single-channel deinterleaving. An autonomous single-channel deinterleaving is a separation of the received sequence of impulses from more than one emitter to sequences of impulses from one emitter without a human assistance. Methods used for deinterleaving could be divided into single-parameter and multiple-parameter methods according to the number of parameters used for separation. This thesis primarily deals with multi-parameter methods. As appropriate methods for an autonomous single-channel deinterleaving DBSCAN and variational bayes methods were chosen. Selected methods were adjusted for deinterleaving and implemented in programming language Python. Their efficiency is examined on simulated and real data.
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Johnson, Eric (Eric M. ). "Self-installation of drip irrigation emitters for prototype emitter testing." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105700.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 31).
In this thesis, I tested methods of adhering factory-made drip emitters to the interior of short segments of piping. Different types of adhesive and pipe material combinations were tested, and I selected three combinations for further testing. Performance similar to factory-installed drip emitters was achieved at low pressure, but the necessary watertight seals repeatedly burst at higher water pressures. Alterations to the drip emitter and installation procedure are recommended to increase reliability and resilience of the installation.
by Eric Johnson.
S.B.
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Weynand, Vance Leo. "Evaluation of the application uniformity of subsurface drip distribution systems." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/211.

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The goal of this research was to evaluate the application uniformity of subsurface drip distribution systems and the recovery of emitter flow rates. Emission volume in the field, and laboratory measured flow rates were determined for emitters from three locations. Additionally, the effects of lateral orientation with respect to slope on emitter plugging was evaluated. Two different emitters were tested to evaluate slope effects on emitter plugging (type Y and Z). The emitters were alternately spliced together and installed in an up and down orientation on slopes of 0, 1, 2 and 4% and along the contour on slopes of 1 and 2%. The emitters were covered with soil and underwent a simulated year of dosing cycles, and then flushed with a flushing velocity of 0.6 m/s. Initial flow rates for the two emitter types were 2.38 L/hr with a C.V. of 0.07. There was no significant difference in flow rates among slopes for type Y emitters, but there was a significant difference between the 1% and 2 % contour slopes for type Z emitters. Application uniformity of three different laterals at each site was evaluated. Sections of the lateral from the beginning, middle and end were excavated and emission volumes were recorded for each emitter. Application uniformity of laterals ranged from 48.69 to 9.49%, 83.55 to 72.60%, and 44.41 to 0% for sites A, B, and C, respectively. Mean emitter flow rate was 2.21, 2.24, and 2.56 L/hr for sites A, B, and C, respectively under laboratory conditions. Application uniformity under laboratory conditions ranged from 70.97 to 14.91%, 86.67 to 79.99%, and 85.04 to 0.00% for sites A, B, and C, respectively. A flushing velocity of 0.15 m/s with no chlorination, shock chlorination of 3400 mg/L and flushing velocity of 0.15 m/s, and shock chlorination of 3400 mg/L and flushing velocity of 0.6 m/s treatment regiments were applied to all laterals collected to assess emitter flow rate recovery to the nominal flow rate published by the manufacturer. All laterals showed an increase in the number of emitters within 10% of the published nominal flow rate.
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Keyes, Edward Patrick Carleton University Dissertation Engineering Electrical. "Emitter resistance and current gain in polysilicon emitter transistors." Ottawa, 1987.

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Mackay, Gary F. (Gary Francis) Carleton University Dissertation Engineering Electrical. "Emitter resistance and current gain in rapid thermal annealed polysilicon emitter transistors." Ottawa, 1991.

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Hartup, David Carl. "Emitter identification using optical processors." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/15672.

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Rowlandson, Michael Barry Carleton University Dissertation Engineering Electrical. "A true polysilicon emitter transistor." Ottawa, 1988.

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Post, Ian R. C. "PNP polysilicon emitter bipolar transistors." Thesis, University of Southampton, 1992. https://eprints.soton.ac.uk/394020/.

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Šimonová, Lucie. "SELEKTIVNÍ EMITOR PRO TERMOFOTOVOLTAICKÉ SYSTÉMY." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445179.

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The work is focused on research and development of a suitable method for creating a selective emitter for the visible and near infrared region so that they are able to work optimally together with silicon photovoltaic cells in a thermophotovoltaic system. The aim of the work was to develop a new method of creating very fine structures outside the current standard, which will increase the emissivity of the base material to meet the needs of a selective emitter for the VID and NIR region. The methods available to us for the creation of structures were chosen, from which we eliminated all unsuitable ones and we introduced the optimal procedure and parameters for their creation for the selected method. In this work, we focused on both ceramic and metallic materials, whose heat resistance and selective properties are key to this work. Part of the development of the emitter structures was also the need for pretreatment of the substrate itself, where great emphasis was placed on the purity of materials and surface roughness. Since ceramic materials cannot achieve a surface roughness so low that the desired structures can be formed, these materials have been purposefully used primarily for the purpose of combining the base material with thin layers of other high temperature material. Their compatibility and suitability were verified in terms of adhesion and subsequent heat resistance. The main material for the formation of fine structures was purposefully chosen tungsten, for which we verified the influence of the formed structure on the emissivity as well as the thermal stability during long-term exposure to high temperatures. The work thus represents not only a new method of creating very fine structures, which are not normally formed in such subtlety, but also opens the way to new possibilities of combining more materials to achieve the required selectivity of the thermophotovoltaic emitter.
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Constantinou, Marios, Michael Gehde, and Ronald Dietz. "Emitter - Material – A complex system." Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-198230.

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Der Vortrag zeigt die Komplexität der Wechselwirkungen zwischen Infrarotstrahler und Werkstoff beim Infrarotschweißen von Kunststoffen auf. Hierfür werden die Haupteinflüsse auf die Strahler-Werkstoff-Wechselwirkungen beschrieben. Diese sind das Emissionsverhalten des Infrarotstrahlers und das Absorptionsverhalten des Kunststoffs. Der Einfluss der Infrarotstrahlerart (Quarzglasstrahler, Metallfolienstrahler) und von Füllstoffen (Ruß, Glasfasern) im Kunststoff wird näher betrachtet. Zudem enthält der Vortrag eine Empfehlung für die Vorgehensweise beim Infrarotschweißen von Kunststoffen, die Vor- und Nachteile des Fügeverfahrens und einen Einblick in aktuelle Forschungsaktivitäten auf dem Gebiet des Infrarotschweißens von Kunststoffen.
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Books on the topic "Emiter"

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Eminem. Philadelphia: Mason Crest, 2012.

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Eminem. New York: Gareth Stevens Pub., 2012.

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Abrams, Dennis. Eminem. New York: Checkmark Books, 2008.

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Abrams, Dennis. Eminem. New York: Checkmark Books, 2008.

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Boyd, Christie Brewer. Eminem. Detroit: Lucent Books, 2012.

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Jenā, Bhāskara. Jībana emiti emiti. Bhubaneśvara: Mahābīra Prakāśana, 1999.

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Winarto, Jasso. Emiten pasar modal Indonesia, 1994-1995. Jakarta: Sigma, 1994.

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Rousseau, Jean-Jacques. Emile. London: J.M. Dent, 1993.

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Ungerer, Tomi. Emile. New York, NY: Dell Publ., 1989.

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ill, Futterer Ralf, and MacGillis Ingrid, eds. Emile. San Francisco, Calif: MacAdam/Cage Children's Books, 2004.

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Book chapters on the topic "Emiter"

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Weik, Martin H. "emitter." In Computer Science and Communications Dictionary, 514. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_6116.

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Weik, Martin H. "detector-emitter." In Computer Science and Communications Dictionary, 393. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_4836.

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Weik, Martin H. "optical emitter." In Computer Science and Communications Dictionary, 1164. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_12976.

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Weik, Martin H. "victim emitter." In Computer Science and Communications Dictionary, 1888. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_20756.

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Yates, John T. "Thermionic Emitter Mounting." In Experimental Innovations in Surface Science, 214–15. New York, NY: Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-2304-7_66.

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Craig, Edwin C. "NPN Emitter Follower." In Laboratory Manual for Electronics via Waveform Analysis, 46–50. New York, NY: Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-2610-9_8.

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Matsumoto, Takahiro, and Hidenori Mimura. "Graphite Nanoneedle Field Emitter." In Carbon Nanotube and Related Field Emitters, 177–92. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527630615.ch13.

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Strickland, James R. "Collector, Base, and Emitter." In Junk Box Arduino, 103–24. Berkeley, CA: Apress, 2016. http://dx.doi.org/10.1007/978-1-4842-1425-1_5.

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Bauer, Thomas. "Radiators (Emitters)." In Thermophotovoltaics, 17–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19965-3_2.

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Yates, John T. "Thermionic Emitters." In Experimental Innovations in Surface Science, 133–47. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17668-0_14.

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Conference papers on the topic "Emiter"

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Shamshery, Pulkit, and Amos G. Winter. "Designing a Low Activation Pressure Drip Irrigation Emitter With Constraints for Mass Manufacturing." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-60078.

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This work discusses the modeling and optimization of a drip irrigation emitter for reducing activation pressure. Our model formulation focuses on analytically characterizing fluid-structure interactions in an existing 8 liters per hour (lph) pressure-compensating online emitter. A preliminary experimental validation of the resulting model was performed for three different emitter architectures. This model was used as a basis for a genetic algorithm-based optimization algorithm that focused on minimizing activation pressure. The design variables considered in our formulation include, geometric features of the emitter architecture, and practical constraints from manufacturing. We applied our optimization approach to four emitters (with flow rates of 4, 6, 7 and 8.2 lph) and were able to lower activation pressure by more than half in each case. The optimization results for all four emitters were experimentally validated in lab-studies. We performed a more exhaustive validation study for the 8.2 lph emitter with an emitter manufacturer. Results from these experiments (which followed ISO standards) showed that the optimized 8.2 lph emitter had a 75% lower activation pressure when compared to the original emitter design.
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Si, Bui Quang Tran, Doyoung Byun, and Sukhan Lee. "Experimental and Theoretical Study of the Cone-Jet for Electrospray." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42815.

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The interference effect on an array of electrospray emitters is analytically and experimentally investigated. An analytical model is presented to predict the behavior of the operating voltage with respect to emitter spacing in an array of emitters. The basic idea of these models is to superimpose the electric potential of individual emitters together in an array of emitters. If only one of the emitters operates and no liquid is supplied through the neighboring emitters, the potential required to form a stable cone-jet generally increases as the emitters move closer to each other due to electrical shielding. However, at very close spacing the required potential decreases. If all the emitters operate simultaneously, the operating voltage required for cone-jet spraying increases as the emitter spacing decreases; furthermore, there is no decrease in potential when the spacing is very close. The results of the analytical electrostatic interference model agree well with the experimental data.
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Yuksel, Anil, Alex Heltzel, and John R. Howell. "Design and Optimization of Thermal Selective Emitters for High-Efficiency Thermophotovoltaic (TPV) Power Generation." In ASME 2015 9th International Conference on Energy Sustainability collocated with the ASME 2015 Power Conference, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/es2015-49581.

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Thermophotovoltaic (TPV) devices are popular energy converters due to providing low noise, low thermal-mechanical stresses and portability. The conversion efficiency of TPVs is still low due to mistuned spectral properties between thermal selective emitters and the TPV cell. Using thermal selective emitters that are well-matched to the TPV cell spectrum enhances the conversion efficiency of TPVs. Several thermal selective emitters, composed of 1-D complex multilayer structures with rectangular gratings, have been proposed. Cost, fabrication and stability factors have been major problems for their application on TPV modules. In this paper, a 1-D tungsten thermal emitter is optimized which exhibits close to blackbody emittance near the band-gap of a GaInAsSb TPV cell and sharp cutoff for longer wavelengths. The emitter is at 1200K, and is designed and optimized by modeling triangular grooves to excite localized groove modes which are well-matched to the GaInAsSb TPV cell external quantum efficiency (EQE) for high efficiency energy conversion. We suggest that a quasi-monochromatic, narrow-band and coherent emitter at a frequency near the energy band-gap of the converter is an ideal source to achieve high conversion efficiency.
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Wang, Xinkun, and Junhong Li. "Numerical Calculation of Triangle Circulation Drip Irrigation Emitters." In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30581.

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Based on the hydraulic characteristics of triangle circulation, sudden-expansion pipe and sudden contraction pipe, Construct a drip irrigation emitter with strong turbulent flow, large over-current cross-section and strong anti-clogging ability. Triangular circulation flow path emitters for the key structural parameters for the factors, application of computer numerical fluid dynamics CFD software FLUENT6.3, simulate triangular circulation flow channel structure, analyze the influence of various structural parameters on hydraulic performance of emitters, flow index, flow rate and the anti-clogging ability. The results show that increase unit cusp, unit chamfer, the flow index increased, but the effect to varying degrees; inlet dimension increase, flow index reduced; flow channel depth and flow channel width increases, the discharge increases. Increase unit cusp, unit chamfered, can improve the anti-clogging performance of emitters. Based on the above results, to design an emitter structure with good performance, and its numerical simulation analysis, the flow index, flow rate and anti-clogging ability have met the requirements of drip irrigation. Provide a theoretical basis for the triangle circulation emitter structure design and quantitative analysis. The research has a positive meaning for energy conservation.
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Taylor, Katherine A., Pulkit Shamshery, Ruo-Qian Wang, and Amos G. Winter. "A Mathematical Model for Pressure Compensating Emitters." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47519.

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This paper presents a mathematical model investigating the physics behind pressure-compensating (PC) drip irrigation emitters. A network of PC emitters, commonly known as drip irrigation, is an efficient way to deliver water to crops while increasing yield. Irrigation can provide a means for farmer to grow more sensitive, and profitable crops and help billions of small-holder farmers lift themselves out of poverty. Making drip irrigation accessible and economically viable is important for developing farmers as most face the challenges of water scarcity, declining water tables and lack of access to an electrical grid. One of the main reasons for the low adoption rate of drip irrigation in the developing world is the relatively high cost of the pumping power. It is possible to reduce this cost by reducing the required activation pressure of the emitters, while maintaining the PC behavior. The work presented here provides a guide of how design changes in the emitter could allow for a reduction in the activation pressure from 1 bar to approximately 0.1 bar. This decrease in the activation pressure of each emitter in turn decreases the system driving pressure. This reduction of driving pressure will decrease the energy need of pumping, making a solar-powered system affordable for small-acreage farmers. This paper develops a mathematical model to describe the PC behavior in a commercially available emitter. It is a 2D model that explains the relationship between the pressure, structural deformation and fluid flow within a PC emitter. A parametric study has been performed to understand the effects of geometric and material parameters with regards to the activation pressure and PC behavior. This knowledge will help guide the designs and prototypes of optimized emitters with a lower activation pressure, while also providing the PC behavior.
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Sen, A. K., J. Darabi, and D. R. Knapp. "Modeling of a Novel Multi-Jet Emitter for ESI-MS Applications." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14401.

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This paper presents the concept and simulation of a novel multiple electrospray emitters for electrospray ionization mass spectrometric (ESI-MS) applications. The proposed emitter is based on an array of carbon nanofibers (CNF) vertically grown around the orifice of a microscale thermoplastic capillary. The electrospray ionization process is simulated using a CFD code that utilizes Taylor-Melcher leaky-dielectric formulations for the electrohydrodynamics and volume-of-fluid (VOF) method for tracking the interface. The modeling results predict that under steady state conditions, individual cone-jets are established around each of the CNFs resulting in an array of electrosprays. Effects of several design and operational parameters on the electrospray performance are thoroughly investigated. The results of the present study will facilitate design, fabrication and experiments using the CNF emitter. Higher spray current and lower jet diameter indicate that the proposed emitter can perform equivalent to nanospray emitters exhibiting improved MS sensitivity while using a microscale orifice. Use of microscale orifice benefits in terms of higher sample throughput and eliminates potential clogging problem inherent in nanoscale capillaries. Overall, the proposed emitter is believed to be a suitable candidate for ESI-MS applications.
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Pruijmboom, A., W. T. A. van den Einden, D. B. M. Klaassen, J. W. Slotboom, G. Streutker, A. E. M. de Veirman, and P. C. Zalm. "Phosphorus-Implanted Polysilicon Emitters with High Emitter Efficiency." In 1992 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1992. http://dx.doi.org/10.7567/ssdm.1992.b-2-5.

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Stelmakh, Veronika, Walker R. Chan, John D. Joannopoulos, Marin Soljacic, Ivan Celanovic, and Kimberly Sablon. "Improved Thermal Emitters for Thermophotovoltaic Energy Conversion." In ASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/mnhmt2016-6698.

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Thermophotovoltaic (TPV) energy conversion enables millimeter scale power generation required for portable microelectronics, robotics, etc. In a TPV system, a heat source heats a selective emitter to incandescence, the radiation from which is incident on a low bandgap TPV cell. The selective emitter tailors the photonic density of states to produce spectrally confined selective emission of light matching the bandgap of the photovoltaic cell, enabling high heat-to-electricity conversion efficiency. The selective emitter requires: thermal stability at high-temperatures for long operational lifetimes, simple and relatively low-cost fabrication, as well as spectrally selective emission over a large uniform area. Generally, the selective emission can either originate from the natural material properties, such as in ytterbia or erbia emitters, or can be engineered through microstructuring. Our approach, the 2D photonic crystal fabricated in refractory metals, offers high spectral selectivity and high-temperature stability while being fabricated by standard semiconductor processes. In this work, we present a brief comparison of TPV system efficiencies using these different emitter technologies. We then focus on the design, fabrication, and characterization of our current 2D photonic crystal, which is a square lattice of cylindrical holes fabricated in a refractory metal substrate. The spectral performance and thermal stability of the fabricated photonic crystal thermal emitters are demonstrated and the efficiency gain of our model TPV system is characterized.
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Narain, Jaya, and Amos G. Winter. "A Hybrid Computational and Analytical Model of Inline Drip Emitters." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85871.

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This paper details a hybrid computational and analytical model to predict the performance of inline pressure-compensating (PC) drip irrigation emitters. The term inline refers to flow control devices mounted within the irrigation tubing. Pressure-compensating emitters deliver a relatively constant flow rate over a range applied pressure to accurately meter water to crops. Flow rate is controlled within the emitter by directing the water through a tortuous path (which imposes a fixed resistance), and then through a variable resistor composed of a flexible membrane that deflects under changes in pressure, restricting the flow path. An experimentally validated computational fluid dynamics (CFD) model was used to predict flow behavior through tortuous paths, and a pressure resistance parameter was derived to represent the pressure drop with a single variable. The bending and shearing mechanics of the membrane were modeled analytically and refined for accuracy by deriving a correction factor using finite element analysis. A least-squares matrix formulation that calculates the force applied by a line load of any shape, along which there is a prescribed deflection applied on a rectangular membrane, was derived and was found to be accurate to within one percent. The applicability of the assumption of locally fully developed flow through the pressure compensating chamber in a drip emitter was analyzed. The combined hybrid computational-analytical model reduces the computational time of modeling drip emitter performance from days to less than 30 minutes, dramatically lowering the time required to iterate and select optimal designs. The model was validated using three commercially available drip emitters, rated at 1.1, 2, and 3.8 L/hr. For each, the model predicted the flow rate with an error of twenty percent or less, as compared to the emitter performance published by the manufacturer.
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Brown, Neal A., and Martin Wosnik. "A Controllable Microbubble Emitter." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77140.

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Controlled emission of microbubbles into a water flow boundary layer appears to be a promising means to significant reduction of frictional drag on ships. Theoretical analyses and hypotheses require that particularly small (∼ 100 micrometers or less) gas bubbles be emitted and retained in particular laminae close to the wetted surface. Drag reduction economy requires that the quantity of gas emitted be very small. Here a design of a controllable microbubble emitter which meets both demands above is put forth. The two key requirements governing the design are pulsed operation, which expels a known volume of air during each cycle, and a known number of uniformly-sized micro-holes, which determines bubble number and therefore bubble diameter. A first, proof-of-concept experiment with a modified pulsed-pressure design of the proposed microbubble emitter was carried out and shows promise.
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Reports on the topic "Emiter"

1

Romero, Louis Anthony, John Jeffrey Mason, and Curtis Brandon Webb. Differential emitter geolocation. Office of Scientific and Technical Information (OSTI), September 2012. http://dx.doi.org/10.2172/1055656.

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Terry, James Russell. The DIORAMA Neutron Emitter. Office of Scientific and Technical Information (OSTI), May 2016. http://dx.doi.org/10.2172/1253506.

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Bell, Anthony E. Field Emitter Panel Results. Fort Belvoir, VA: Defense Technical Information Center, November 1995. http://dx.doi.org/10.21236/ada327511.

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Allen, Daniel T. Thermionic converter emitter support arrangement. Office of Scientific and Technical Information (OSTI), July 1989. http://dx.doi.org/10.2172/6735751.

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Kerr, P. L., J. E. Koster, J. G. Conaway, J. A. Bounds, C. W. Whitley, and P. A. Steadman. Monitoring airborne alpha-emitter contamination. Office of Scientific and Technical Information (OSTI), February 1998. http://dx.doi.org/10.2172/645464.

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Gee, J., W. Schubert, and P. Basore. Emitter Wrap-Through solar cell. Office of Scientific and Technical Information (OSTI), December 1992. http://dx.doi.org/10.2172/10161986.

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Fiksel, G., A. F. Almagri, and D. Craig. High current plasma electron emitter. Office of Scientific and Technical Information (OSTI), July 1995. http://dx.doi.org/10.2172/86867.

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Saxton, P. C., A. L. Moran, M. J. Harper, and K. W. Lindler. Thermophotovoltaic emitter material selection and design. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/319658.

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Saxton, Patrick C. Thermophotovoltaic Emitter Material Selection and Design. Fort Belvoir, VA: Defense Technical Information Center, May 1997. http://dx.doi.org/10.21236/ada418470.

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SRI INTERNATIONAL MENLO PARK CA. Field-Emitter Arrays for RF Vacuum Microelectronics. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada252557.

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