scholarly journals Optical single cylinder engines in engine research and development

2013 ◽  
Vol 152 (1) ◽  
pp. 71-78
Author(s):  
Ernst WINKLHOFER ◽  
Wolfgang HOPFNER
Keyword(s):  
Research And Development ◽  
Comprehensive Analysis ◽  
Research Topics ◽  
Design Elements ◽  
Single Cylinder ◽  
Analysis Techniques ◽  
Optical Engine ◽  
Engine Development ◽  
Development Applications ◽  
Development Tasks

We report on essential design elements of optically accessed research engines and describe selected examples of their applications in engine development. Whereas research topics most often address specific generic topics and are focused on comprehensive analysis of selected engine phenomena, the priority in using optical engines for engine development tasks is in providing data relevant for the operation of a normal multicylinder engine. In this latter case, optical engines are only used if their results have such high value that they justify the efforts required to achieve the outcome. Both, research and development applications, benefit from each other as they promote progress in optical engine technology as well as in application of new analysis techniques.

On the Development of Modern Analysis Techniques for Single Cylinder Testing of Large-Bore Engines

1991 ◽  
Vol 113 (3) ◽  
pp. 390-398 ◽  
Author(s):  
G. M. Beshouri
Keyword(s):  
Capital Investment ◽  
New Technologies ◽  
Dual Fuel ◽  
Single Cylinder ◽  
Analysis Techniques ◽  
The World ◽  
Dual Fuel Engines ◽  
Modern Analysis ◽  
Prohibitive Cost ◽  
Engine Development

The world-wide consolidation of many engine manufacturers, along with the relatively low production rate of new engines, has resulted in a significant reduction in the facilities, engines, and personnel available for conducting full-engine laboratory quality tests against calibrated dynamometers. Concurrently, the continued pressure for further reduction in exhaust emissions, along with improvements in fuel consumption, has created a growing aftermarket for the retrofit/upgrade of new technologies requiring further engine development. Regrettably, the prohibitive cost and capital investment associated with full engine tests, along with the lack of facilities, makes such tests prohibitive. Therefore, a number of new experimental techniques and associated analysis methods have been developed for conducting laboratory quality single-cylinder tests on commercial engines without interfering with their profitable operation. Such tests have been successfully conducted on both spark-ignited and dual fuel engines. Many details of the methods utilized, along with estimations of their accuracy and reliability, are described.

scholarly journals Identification of Technology Diffusion by Citation and Main Paths Analysis: The Possibility of Measuring Open Innovation

2021 ◽  
Vol 7 (1) ◽  
pp. 104
Author(s):  
Wei-Hao Su ◽  
Kai-Ying Chen ◽  
Louis Y. Y. Lu ◽  
Ya-Chi Huang
Keyword(s):  
Research And Development ◽  
Technology Development ◽  
Surgical Navigation ◽  
Future Research ◽  
Integrated Analysis ◽  
Reference Network ◽  
Research Topics ◽  
Academic Literature ◽  
Development Trajectory ◽  
Historic Development

This study collected literature on augmented reality (AR) from academic and patent databases to plot the historic development trajectory of AR and forecast its future research and development trends. A total of 3193 and 13,629 papers were collected from academic and patent databases, respectively. First, a network was established using references from the academic literature; main path analysis was conducted on this reference network to plot the overall development trajectory. Subsequent cluster and word cloud analyses revealed the following five major groups of AR research topics: AR surgical navigation applications, AR education applications, AR applications in manufacturing, AR applications in architecture, and AR applications in visual tracking. Subsequently, the relationships between the overall development trajectory and the five AR research topics were compared. Next, the title and abstract of AR-related academic and patent papers were subjected to text mining to identify keywords with a high frequency of occurrence. The results can provide a reference for industry, government, and academia when planning future development strategies for the AR field. This research adopted an integrated analysis procedure to plot the trajectory of AR technology development and applications successfully and effectively, predict future patent research and development directions and produce technological forecasts.

scholarly journals Pengembangan Alat Evaluasi Berupa Tes Online/Offline Matematika dengan Ispring Suite 8

2019 ◽  
Vol 2 (3) ◽  
pp. 363-371
Author(s):  
Agna Deka Cahyanti ◽  
Farida Farida ◽  
Rosida Rakhmawati
Keyword(s):  
Research And Development ◽  
Junior High School ◽  
Development Model ◽  
Questionnaire Validation ◽  
Math Learning ◽  
Questionnaire Response ◽  
Analysis Techniques ◽  
Model Research ◽  
The Media ◽  
Online Tests

Abstract: This research aimed to develop tool of evaluation(online/offline tests) using Ispring Suite 8 to math learning at the junior high school. This research method used research and development model (R&D) by using a test instrument development model that includes measuring instrument specifications, statement or question writing, statement or question review, instrument assembly, test, selection and assembly of instruments, instrument administration and scaling and norms writing. The data analysis techniques used expert questionnaire validation and students’ questionnaire response. The results obtained: first, material expert validation got the final percentage of 87% with very reasonable criteria, the media expert got the final percentage of 85,5% with very reasonable criteria, the linguist got the final percentage of 84% with very reasonable criteria, and the second, the final percentage result of students' response was 87,6% with very interesting criteria. So it can be concluded that the development of online tests using Ispring Suite 8  is very suitable to be used in tool of evaluation learning of mathematicsAbstrak: Penelitian ini bertujuan untuk mengembangkan alat evaluasi (online/offline tes) menggunakan Ispring Suite 8  pada pembelajaran matematika pada tingkat SMP. Metode penelitian ini menggunkaan model research and development (R&D). Dengan menggunakaan model pengengembangan intrumen tes yang meliputi spesifikasi alat ukur, penulisan pernyataan atau pertanyaan, penelaahan pernyataan atau pertanyaan, perakitan instrumen, uji coba, seleksi dan perakitan instrumen, administrasi instrumen dan penulisan skala dan norma. Teknik analisis data menggunakan angket validasi ahli dan angket respon peserta didik. Hasil penelitian yang diperoleh: pertama validasi ahli materi mendapat persentase akhir sebesar 87% dengan kriteria sangat layak, ahli media mendapat persentase akhir sebesar 85,5% dengan kriteria sangat layak, ahli bahasa mendapat persentase akhir sebesar 84% dengan kriteria sangat layak, dan yang kedua hasil persentase akhir respon peserta didik sebesar 87,6% dengan kriteria sangat menarik. Sehingga dapat disimpulkan bahwa pengembangan tes online/offline menggunakan ispring suite 8 sangat layak digunakan sebagai alat evaluasi pada pembelajaran matematika.

Analysis of Diesel Combustion using Multi-Stage Injection in a Single-Cylinder Optical Engine

2018 ◽  
Vol 2018.93 (0) ◽  
pp. 1017
Author(s):  
Kenta EGOSHI ◽  
Tomoki TAGUCHI ◽  
Naoto HORIBE ◽  
Hiroshi KAWANABE ◽  
Takuji ISHIYAMA
Keyword(s):  
Diesel Combustion ◽  
Single Cylinder ◽  
Optical Engine ◽  
Multi Stage

scholarly journals RCCI Combustion Regime Transitions in a Single-Cylinder Optical Engine and a Multi-Cylinder Metal Engine

2017 ◽  
Vol 10 (5) ◽  
pp. 2392-2413 ◽  
Author(s):  
Gregory Roberts ◽  
Christine Mounaim Rousselle ◽  
Mark Musculus ◽  
Martin Wissink ◽  
Scott Curran ◽  
...  
Keyword(s):  
Combustion Regime ◽  
Single Cylinder ◽  
Optical Engine ◽  
Regime Transitions
Sign in / Sign up

Export Citation Format

Share Document