Consolidating test resources for avionics production test - requirements and applications

According to findings presented in this paper, comparative product tests substantially influence the market behaviour of industrial and trade businesses in the Federal Republic of Germany. Moreover, they most likely have an impact on market structures and market performance as well. This points to the enormous potential of product testing as an instrument of consumer and anti-trust policies. There is some evidence, however, that product testing may also produce effects which are less desirable from a consumer or anti-trust point of view. Yet, these unwanted side effects of product testing could largely be prevented by observing a number of measures, aimed at improving product test procedures. It is therefore no doubt feasible to improve the degree to which product testing meets the goals of consumer and anti-trust policy.

Does the product test really make a difference? Evidence from the launch of a new wine

A wide range of Radio Frequency (RF) assemblies require testing during their development and production. These include amplifiers, mixers, filters, up converters, down converters, antennas, phase shifters, power dividers, power combiners, Integrated Master Assemblies (IMAs), Weapons Replaceable Assemblies (WRAs), Line Replaceable Units (LRUs) and radio subassemblies. Though there are many differences between the RF assemblies, they all require a test system that is accurate, reliable and traceable while simultaneously minimizing test times. Other important attributes of a test platform for RF assemblies are that it must be calibrated, fully-characterized and incorporate self-test functionality. The test platform must also include a digital control solution for triggering, communicating with Units Under Test (UUT) and interfacing with handlers, fixtures, etc. Finally, the software for the test equipment must also be considered. Typical software functionality would include sequencing, reporting, testing, calibration, and self-test. While it is certainly possible to develop a test system specific to each type of RF assembly; there are many benefits to developing a common RF test platform that includes the functionality listed above.

This study aims to develop learning video based videoscribe applications on Social Science with the topic of natural phenomena. The research method used is research and development method with stages: potential and problems, data collection, product design, design validation, design revision, and product testing (limited trial). To test the feasibility of this video learning then tested the validation of experts conducted by material experts, media experts, and pedagogical experts. After the validation test by the expert team, then the product test (limited trial) with the subject of the research is the 43 students of class VI A SDN Panancangan 2. The results of the material expert test show that this video learning obtained an average score of 82.85% with the a very feasible category. The result of the media expert test shows that this video learning obtained an average score of 88.34% with a very feasible category. The results of the pedagogical expert test show this video learning obtained an average score of 85.83% with a very feasible category. The product trial results (limited trial) obtained an average grade of 90.52% with a very good category. Based on the results of this study, it can be concluded that learning video based on the application of videoscibe very feasible for use in Social Science on the topic of natural phenomenon in Indonesia.

When comparing alternate product formulations, or evaluating competitors' formulations, researchers often conduct blind, forced choice product tests. In this study, the authors present an approach to designing these tests and evaluating their results. Two types of tests are considered: repeat paired comparisons formats, and formats consisting of several triangle tests and a single paired comparison. The approach consists of psychophysical assumptions, discrimination and preference constructs, and a set of analytical techniques. Using this approach, a researcher can compare product test formats to see which one most efficiently estimates a given construct of interest. The approach can also be used to gauge sample size requirements for a particular product test format and to estimate confidence intervals for an observed product test result. To illustrate the approach the authors compare two popular product test formats—the Four Paired Comparisons, and the Double Triangle Single Preference.

This study aims atdeveloping learning video based videoscribe applications on Social Science with the topic of natural phenomena at class VI. The research method used in this study is Research and Development method with stages:potential and problems, data collection, product design, design validation, design revision, and product testing (limited trial). To test the feasibility of thisvideo learning then tested the validation of experts conducted by materialexperts, media experts, and pedagogical experts. After the validation test by theexpert team, then the product test (limited trial) with the subjects of the researchis the students class VI with the number of 43 students. The results of thematerial expert test show that this video learning obtained an average score of 82.85% with very feasible category. The result of the media expert test showsthat this video learning obtained an average score of 88.34% with very feasiblecategory. The results of the pedagogical expert test show this video learningobtained an average score of 85.83% with very feasible category. The producttrial results (limited trial) obtained an average grade of 90.52% with very goodcategory. Based on the results of this study, it can be concluded that learningvideo based on the application of videoscibe is very feasible to be used in SocialScience on natural phenomenon in Indonesia.

The purpose of this research is to develop teaching materials in English speaking skills that are suitable for the needs of primary English teachers’ candidates in the Teacher Training and Education Faculty of Muhammadiyah University of Tangerang. The research is designed with a research and development study or R and D cycle consisting of seven steps: literature study, needs analysis, syllabus analysis, teaching material development, product validation, product testing and final product. Data collection techniques used observation, interview, questionnaire and product tests. The findings of the study reveal that 12 chapters of speaking teaching material was chosen for Primary English teachers’ candidates based on contextual approach, namely: greeting and introducing, counting numbers, talking about family, describing objects, talking about houses, school and class environment, telling time and talking about daily activity, talking about feeling and health issues, shopping time, asking and giving directions, talking about plans and telling past experiences. The results of the effectiveness test show that speaking teaching materials are stated to be good. These findings call for lecturers to apply the teaching material developed in the learning process as a main reference or as a supplementary material so that it can make learning material more interesting, innovative, and effective.

This study aims to produce an environment-based picture storybook to increase the reading interest of fourth-grade elementary school students and obtain the results of book product testing until the suitable book used as reading learning for elementary school students is obtained. This research is development research which consists of three stages, which include (1) Preliminary Study, (2) Product Development, (3) Product Test. The subjects of this study were fourth-grade students of SDN 1 Rajabasa Raya, Rajabasa Sub District, Bandar Lampung City, Lampung Province. The data analysis technique in this study adopted a qualitative descriptive technique. Data collection was carried out using questionnaires and interviews. The product validity was tested by learning material and learning media experts. Based on the research conducted, it was found that: (1) environmental-based picture storybooks can increase students' reading interest; (2) environmental-based picture storybooks are suitable to be used as learning resources in learning to read for elementary school students. The results of this study found that the level of validity of the development of picture storybook learning media products in increasing reading interest in fourth-grade elementary school students was very good.

In this paper, the problems of offline testing, manufacturer collaboration, and inconsistent standardization of existing test platforms are addressed in this study, with a special focus on complex field test scenarios and under-applied test data. To solve this problem, a test platform for distribution automation (DA) equipment based on Kubernetes technology is proposed. First, the composition and testing process of the DA testing system are elaborated in detail, and then a new testing platform is constructed by introducing Kubernetes technology. Finally, the feasibility of the platform is verified by building the new DA test platform based on Kubernetes technology for experiments. This study aims to improve the effectiveness of the test platform, promote the full application of field test scenarios and test data, and provide a more consistent and efficient solution for the testing of distribution automation equipment.

This paper presented the use of Ultra-High Frequency (UHF) Radio Frequency Identification System (RFID) for laundry management system in healthcare. The laundry management system is designed to detect, count, record and report the laundry process from washing, drying, ironing, folding, and packaging. The laundry management system is consisted of the waterproof RFID laundry tags, RFID reader and the data recording system which was build using Visual Basic and Microsoft Access software. In this project, the users will be able to monitor the process of the hospital's linen which includes the pillowcases, bedsheets, towels, and other hospital linens. The advantage of using this laundry management can reduce the human error of missed count the items and also to ensure smooth laundry item cleaning process to be executed. The database recording system allows the user to monitor the number of in and out item processed at the laundry. As the items passed though the RFID reader, they will be automatically detected by its unique ID of each item. The database recoding system will display out the number of RFID tag detected at one time and store it into the database. The RFID reader is placed at the entrance of different processing area. Therefore, the user will be able to monitor the status of certain linen items. From the database recording system, users will be able to check for any missing linen along the cleaning process. For the laundry operator who serve for more than one hospital, this laundry management system can help reduce the possibility for different linen from different hospital to be mixed. The database recoding system presented in this paper is able to reduce the human error, effective and systematic compared to the traditional laundry counting and recording system. This laundry management system also can be used for hotels laundry management for the linen that can be tagged to prevent the loss of items such as towels, blanket, and curtains.

The Army GPS Truth Data Acquisition, Recording, and Display System (TDARDS) at the White Sands Missile Range (WSMR) is a compact, lightweight, low-cost, and easily transportable or mobile GPS-based tracking system that uses up-to-date GPS, radio datalink, and computer technology to provide highly accurate, real-time time-space position information (TSPI) on up to ten test objects, such as ground vehicles, helicopters, and fixed-wing aircraft. The system is highly modular, built with commercial off-the-shelf (COTS) hardware, and easily modifiable to meet any special needs of individual testing and tracking applications. The paper (1) describes the system architecture and components of TDARDS and how system capabilities mesh with and enhance other test and evaluation (T&E) capabilities at WSMR, (2) discusses compatibility and expandability with Range Applications Joint Program Office (RAJPO)-developed equipment-especially the coarse acquisition (C/A) code receiver (CACR)-and (3) presents a few representative system and laboratory test results.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The development of a PC-based functional test platform that incorporates Statistical Process Control (SPC) and a failure analysis database is described. With Commercial Off-The-Shelf(COTS) tools available it is possible in a low volume high-mix environment to easily obtain basic statistical information on each test, develop an easily accessible database of information on failures, causes of failures and troubleshooting activities and increase test efficiency with minimal test development costs. A common test platform has been developed that can be configured to test a wide variety of sub-assemblies from digital controller cards to radio frequency (RF) modules. The platform consists of a PC with a multi-function data acquisition card and a General Purpose Interface Bus (GPIB) card for control of test instruments. Applications are linked with Dynamic Data Exchange (DDE) and the PCs are connected to the company's Local Area Network (LAN) so that test data can be accessed from throughout the plant. A key point is the implementation of SPC with this test platform. Statistics include process capability indices C/sub p/ and C/sub pk/ and failure rate. Test data is analyzed and used to make process improvements. Examples are presented. Since the entire system has been designed and built around established COTS software and hardware, additional capabilities can be easily added in the future. Some planned enhancements are described.

Electric power system is one of the largest and complex infrastructures made by mankind during the last century. The total investment associated with it in trillions of dollars. As it is a very expensive, large and complex physical system, secure network operation without having any system wide instability issue and catastrophic consequences is sought. As a result power system educators and researchers are constantly scrutinizing power system with changing scenarios and coming up with the new solutions to keep the most important infrastructure intact in order to make the economy and society sustainable. It is tough, but not impossible, and expensive to build physical test power systems to perform various researches. Hence, the test power systems models have been playing a key role for better understanding, development, and deployment of new solutions in power system problems. There have been many test systems with varying complexities and sizes used all around the world. However, there is no common platform where the most of these test systems are documented so that the educators and researchers can chose an appropriate test system suitable for their studies. The paper presents a collection of commonly used test systems for various dynamic stability studies.

*Dean’s two-microphone method is a well known technique to determine the in-situ impedance of a locally reacting acoustic liner using local measurements of the dynamic pressure at the face sheet and at the back sheet. The method was originally developed during the era of analog data recording and processing systems. The advent of digital data recording and processing systems has expanded the capabilities of the method. This paper explores several different ways to compute the impedance using alternative ensemble averaging methods. The impact of signal noise is investigated by applying the different averaging methods to in-situ measurements of an acoustic liner acquired during a full scale engine test. The differences between the computed impedance are compared to gain insight into the characteristics of the signal noise and to explore an apparent difference in the liner impedance between tonal and broadband excitation. Nomenclature

Laboratory Industry Perspectives on the Role of Self-Collection and Self-Testing in Remote Care for Sexually Transmitted Infections: How Do We Bring These Services to Scale?