Troubleshooting

This project is on troubleshooting and repair of a Miller Gold Star 602 welding machine that provides electric current to join material usually metals, it is applicable in some welding processes like Shielded Metal Arc Welding (SMAW), Flux Core Arc Welding (FCAW) and many more. Due to the overworking of the welding machine beyond its rated duty cycle during welding operation, which result to poor performance; thereby making the machine inoperative. The constant break down of the welding machine reduce the number of the welding machine available to student in the workshop leading to overworking and over stretching of other welding machines. The various faulty parts were detected through troubleshooting and analysis of the; circuit card, fuse, contactor and electrode holder. These were repaired and the damaged parts, replaced. Shutdown maintenance operation was carried out on the machine by cleaning using a blower to remove dust particles from the machine's sensitive parts. A change over switch was added to the machine to serve as an additional relay protection system. The rotor was also greased to reduce friction. It was concluded that after testing on-load at 60% duty cycle and on no-load condition, the machine worked in perfect condition. We recommended that preventive routine maintenance should be carried out using the maintenance checklist provided to avoid break down. The machine should be operated within the rated duty cycle for optimum performance.

Humans and robots will need to collaborate in order to create a sustainable human lunar presence by the end of the 2020s. This includes cases in which a human will be required to teleoperate an autonomous rover that has encountered an instrument assembly failure. To aid teleoperators in the troubleshooting process, we propose a virtual reality digital twin placed in a simulated environment. Here, the operator can virtually interact with a digital version of the rover and mechanical arm that uses the same controls and kinematic model. The user can also adopt the egocentric (a first person view through using stereoscopic passthrough) and exocentric (a third person view where the operator can virtually walk around the environment and rover as if they were on site) view. We also discuss our metrics for evaluating the differences between our digital and physical robot, as well as the experimental concept based on real and applicable missions, and future work that would compare our platform to traditional troubleshooting methods.

The OSI model, developed by ISO in 1984, attempts to summarize complicated network cases on layers. Moreover, network troubles are expressed by taking the model into account. However, there has been no standardization for network troubles up to now. Network troubles have only been expressed by the name of the related layer. In this paper, it is pointed out that possible troubles on the related layer vary and possible troubles on each layer are categorized for functional network administration and they are standardized in an eligible way. The proposed model for network trouble shooting was developed considering the OSI model.

In this article we explain approach in using Access Performance Manager System (APM) for analyses of ADSL lines in production of broadband (BB) Operator. Results of monitoring and optimization are shown. In our case optimization is done by DAO subsystem. We compare results of two Operators with the same goal to maximize service availability with minimum decrease of service characteristics, specially speed in downstream. APM has purpose for monitoring of all performances of BB system as well as interdependency of lines. APM monitoring and optimization of line parameters is based on changing of End User Profiles and using line testing mechanism integrated in DSLAM devices. APM is designed around a selection of configurable batch jobs that store vital Line Test (SELT and Loop Diagnostic) and DSL-link parameters in the APM database. By selecting the appropriate view, it is possible to follow and understand faulty behaviour in detail. APM is also equipped with a real-time view that is essential when troubleshooting on a per-line basis or when re-configuring a DSL link online. Support for equipment/DSLAM of other vendors than Ericsson is also implemented in APM. APM offers several tools that are designed to solve different problems in a DSL-based network.

El conocimiento, desde la perspectiva de los griegos, es de cuatro tipos: empeiría, tékhne, epistéme y noús. Estos tipos presentan diferentes características, según se orienten a la dimensión del origen (hechos o conceptos), o a la dimensión de la fi nalidad (contemplación o dominio). Sobre la base de estas dimensiones se plantea una herramienta para percibir, desarrollar y consolidar las fortalezas personales, derivadas de la predisposición del propio conocimiento. Esta herramienta permite delinear el potencial productivo personal, bajo la perspectiva que el conocimiento adquirido determina la predisposición y el desarrollo de su capacidad para tomar decisiones y resolver problemas. En la muestra estudiada, se observa que los profesionales tienen diferente predisposición hacia las dimensiones del conocimiento, lo que conlleva un diferente perfi l personal para la resolución de problemas. Según el perfi l predominante, los profesionales están más orientados al análisis y estudio, y ...

... This paper presents DUMBO (Qescobrindo sol&o'es Manipulando uma Base de Qcorrincias) [9], a system that incorporates Case-Based Reasoning (CBR) [5] paradigm in a traditional existing TTS architecture (CINEMA TTS [ 12]), aiming to use the knowledge stored in the TTS ...

Seluruh elemen kelistrikan yang terdapat pada sepeda motor membutuhkan suplai arus listrik yang terus menerus memberi energi listrik. Namun baterai memiliki keterbatasan jika harus terus menerus meyuplai arus listrik. Sehingga adanya sistem pengisian bertujuan untuk membantu fungsi baterai sekaligus mengisi  Kembali energi listrik pada baterai. Penelitian ini dilakukan dengan metode kualitatif menggunakan teknik observasi dan studi pustaka untuk menyajika komponen-komponen sistem pengisian, bagaimana cara berkejannya, dan mengidentifikasi gangguan yang umum terjadi pada sepeda motor honda supra x 125. Sistem pengisian ini terdiri dari alternator, regulator/rectifier, baterai, dan sekring, dengan berkerja saat armature berputar memtong gars gayamagnet stator sehingga timbul tegangan. Gejala gangguan pada sistem pengisian sepeda motor honda supra x 125 ditandai dengan lampu redup dan mudah putus, aki tekor, dan tidak berfungsinya komponen kelistrikan. Pemeriksaan dan perbaikan yang tepat dapat membantu mendeteksi masalah dengan cepat pada sepeda motor dan melakukan perbaikan sesegera mungkin sebelum terjadi kerusakan yang lebih serius.

Over the decades there have been several papers on the coloration of cotton-based textiles. The number of articles dealing with the processing of cotton, including preparation, dyeing, and finishing, may be in the thousands. An investigation of the possible causes of problems occurring in the coloration of textiles revealed that a comprehensive review of case studies and scientific analysis would be a welcome addition to the already rich pool of knowledge in this area.

Troubleshooting is the ability of individuals to adopt a systematic approach towards identifying and then solving the problem or issue. In simple words, troubleshooting are the problem solving abilities of a person. The researcher choose to study “The Fundamental Value of Troubleshooting in CSS NCII” to measure the level of importance of the students towards troubleshooting.

The respondents are selected based on the needed information to collect. These are 30 students from 3 sections of Grade 12 CSS. The researchers used purposive sampling for this study.

The results shows that using troubleshooting in activities related to Computer System Servicing is important. The findings also implies that troubleshooting challenge the student to be a competitive student and a golden ticket to pass the NCII exam.

Sistem kelistrikan bodi merupakan salah satu sistem penting pada kendaraan.
Sistem kelistrikan bodi bekerja sebagai penerangan dan peringatan pada kendaraan,
dengan adanya sistem kelistrikan bodi yang bekerja dengan baik, resiko saat berkendara
di jalan akan dapat diminimalisir. Oleh karena itu, mengetahui fungsi, cara kerja, dan
cara mengatasi gangguan pada sistem kelistrikan bodi penting diketahui oleh pengguna.
Artikel ilmiah ini dibuat dengan metode kulualitatif yaitu mengumpulkan informasi atau
data mengenai objek yang diamati, dan dilengkapi dengan teknik observasi dan studi
pustaka. Komponen komponen inti pada sistem penerangan meliputi lampu kepala (head
lamp) dan lampu kota .Untuk sistem peringatan memuat lampu rem, lampu tanda belok,
klakson, dan indikator. Gangguan yang terjadi pada sistem kelistrikan bodi dapat
diidentifikasi melalui pemeriksaan kondisi fisik komponen, atau pengukuran tahanan dan
hambatan menggunakan multimeter.

Steam reforming bersifat endotermik berkebutuhan panas besar dari keseluruhan tahap-tahap pembuatan ammonia. Pemenuhan kebutuhan panas reaksi melalui panas reaksi eksotermik hasil pembakaran gas alam dengan udara. Perubahan komposisi gas alam sebagai aliran proses maupun aliran utilitas berdampak pada proses utama berikut penyediaan utilitas reaksi steam reforming. Neraca massa dan energi dengan reaksi proses utama dan utilitas primary reformer 101-B dihitung dibantu software simulasi proses ASPEN HYSYS untuk mengevaluasi performa peralatan proses. Analisis perubahan umpan proses beserta utilitas dilakukan untuk operasional serta troubleshooting proses bila diperlukan. Gas alam bahan bakar terhadap aliran proses basis rancangan, analisis harian, dan performance test 18,76%; 13,81%; dan 11,91%. Kebutuhan panas reaksi steam reforming kondisi aktual terhadap desain awal analisis harian dan performance test 54,75% dan 49.46%. Udara pembakaran furnace kondisi aktual analisis harian dan performance test 54,87% dan 49,48%. Semakin tinggi rasio S:C umpan membuat konversi steam reforming semakin baik dengan konsumsi panas semakin besar.

Kata kunci: steam reforming, pembakaran, fuel, panas reaksi, udara, s:c ratio

N ine hundred case histories of malfunctioning towers reported over the last 50 years were surveyed and analyzed. Our analysis shows rapid growth in the number of malfunctions with no signs of decline. Plugging, especially of tray active areas, packing and distributors, tops the malfunctions list. Coking (re nery towers only), scale and corrosion, and precipitation were the most common causes. The tower base comes second, where liquid level rising above the reboiler inlet caused premature ood and even internals damage. Attention to level measurement and kettle reboiler pressure balance are key preventive measures. Next follow tower internals damage, abnormal operation incidents (startup, shutdown, commissioning), assembly mishaps, packing liquid distributors, intermediate draws, misleading measurements, reboilers, and explosions. Tray design and tower simulation, two topics that receive much attention in the literature, are not high up on the malfunction list. The survey teaches numerous lessons on each of the malfunctions which are invaluable for achieving trouble-free design and operation of distillation towers.

Este manual presenta en forma detallada los diferentes temas necesarios para emprender el estudio sistemático del curso "Principios de Bombeo Mecánico".

Se analiza el comportamiento de producción de los pozos, describe los diferentes componentes que conforman el sistema de bombeo mecánico, muestra desde el punto de vista conceptual y práctico las técnicas utilizadas para el diagnóstico de las condiciones de bombeo (Cartas Dinagráficas, Medidas de Producción, Registros Sónicos y de Presión). Luego presenta la forma de realizar programas de máquinas de servicio a pozos, para corregir anormalidades detectadas con las técnicas antes descritas.

Finalmente, se estudian los diferentes métodos para diseño de equipos de bombeo mecánico y se describe la utilización del sistema móvil computarizado Delta IV en la simulación, diseño y predicción de comportamiento de pozos con fines de optimización.

Las figuras, tablas y ejemplos de aplicación han sido especialmente escogidos para cada parte del curso. La inclusión de los análisis y resultados computarizados contribuye a reforzar el carácter práctico de este manual como trabajo didáctico.

Banyaknya pengguna komputer yang kurang memiliki pengetahuan yang cukup terhadap penanganan kerusakan hardware mengakibatkan banyak sekali pengguna komputer atau suatu institusi yang mengeluarkan biaya yang tidak sedikit hanya untuk memperbaiki kerusakan yang terjadi pada hardware komputer. Oleh sebab itu aplikasi sistem pakar ini dibuat untuk membantu pengguna komputer dalam melakukan diagnosis awal terhadap suatu kerusakan hardware komputer yang dialami beserta solusi untuk mengatasi kerusakan tersebut. Proses pembangunan sistem pakar ini menggunakan metode akuisisi pengetahuan dengan teknik pengumpulan data yang digunakan yaitu wawancara, observasi dan induksi aturan. Sedangkan metode inferensi yang digunakan dalam pembangunan sistem pakar ini menggunakan metode forward chaining. Untuk metodologi pembangunan perangkat lunak yang digunakan menggunakan metode terstruktur yaitu Data Flow Diagram dan Entity Relationship Diagram.. Tools pemrograman yang digunakan dalam pembangunan sistem pakar ini menggunakan Adobe Dreamweaver CS3 sedangkan basis datanya menggunakan MySQL.

Since the New vs Legacy RefWorks are on offer, users can mistakenly try to login to the non-intended version from a newly installed WriteNCite 4. It then is not possible to login to the RefWorks account in WriteNCite. Re-installing WNC does not solve the problem.
Refworks Support suggested erasing the hidden files. The current document is a brief problem description and provides a step by step solution. It should then be possible to re-install WNC fresh.

Berikut ini merupakan topologi jaringan lokal, yaitu: Dari topologi di atas diketahui beberapa jaringan local. Beberapa jaringan lokal tersebut dapat kita lakukan troubleshooting dengan memanfaatkan tool-tool jaringan seperti ipconfig, ping, nslookup, tracert, pathping dan netstat. Berikut ini merupakan laporan hasil troubleshoot dengan menggunakan beberapa tool jaringan yaitu: Created By: Citra Agustin XII TKJ 1/08 1. Pertama-tama, pastikan laptop/PC kita dalam keadaan sudah terhubung ke jaringan local, baik itu secara fisik (seperti pemasangan kabel dan lainnya) maupun pengaturan jaringan (seperti pengisian IPv4 dan lainnya). Disini Laptop saya sebagai Client di Network 3 yaitu dalam network 192.168.8.0/24. Pemasangan kabel dilakukan dengan pengaturan berikut:  Ether2 pada Router B terhubung dengan Ether2 pada Router A dengan memakai kabel cross.  Ether3 pada Router B terhubung dengan PC/laptop B memakai kabel straight.  Ether2 pada Router A terhubung dengan Ether2 pada Router B dengan memakai kabel cross.  Ether3 pada Router A terhubung dengan PC/laptop A memakai kabel straight. 2. Kemudian buka Command Prompt (CMD) di Laptop B yaitu Laptop saya. 3. Lalu gunakan tool-tool jaringan, yang pertama gunakan tool IPCONFIG untuk menampilkan seluruh konfigurasi jaringan PC/Laptop. Created By: Citra Agustin XII TKJ 1/08  ipconfig /all ipconfig /all ialah tool jaringan untuk menampilkan seluruh konfigurasi jaringan PC/Laptop tersebut. Microsoft Windows [Version 6.1.7601]

Abstract
For every engineer, Technician or mechanic, however complex your task could get so long as you got a manual, chances are 97.8% you are likely to provide the right solution and a better analysis of the system.
This manual however it is not limited to HVACR fields only, any individual or a consumer and the end user of Mechanical and electrical machines needs this manual which encircles all challenges, faults encountered with motors, compressors, power, circuits, sensors, the supposed causes and possible definite solution to the very problem.
Need I have to say more than this, you can never find the best teacher without knowledge and the experience in a given field, and challenges addressed here are real time daily activities for Technicians sent out in the field.
Chances are many of us solve problems but do not have reasons as to why a certain system is behaving this way, as we encounter these challenges its always better to pen down the behavior and the possible tests that can solve the problem forever. This manual wouldn’t have come through if the challenges were never written down.
This manual here is not entirely individual experiences but also consultations from designers, engineers, mechanics, and end users feedback about the units operation. For most young Technicians and Engineers in the field this elevates you to a level of a complete Technician understanding what you do.
For researchers and readers, this is not the end of the observations, you aren’t limited to identifying the gaps and researching further than this, it only encircles Troubleshooting split air-conditioning systems, with several components that can be integrated and applied in other related fields.
It will be better and a good progress if the gaps on refrigerant handling and research on how that can be effected in the African continent. In my daily fields operations there’s a challenge however much people are aware on the dangers of leaking gas to the atmosphere, some incidences seem inevitable with the African people, my only question is will certification of practitioners improve or reduce the vice?, as the HVACR field exponentially expands in the country and on African continent, how best are we putting in the consideration that the environment will be affected by so many other variables on our hands. I relay this to the rest of readers and those interested in making the earth a better place to live than advocating to board a shuttle to Mars.
Let’s do this….. 

Laju perkembangan Teknologi di masa sekarang berkembang dengan begitu pesat, tak terkecuali teknologi Telekomunikasi. Teknologi telekomunikasi sangatlah penting pada masa sekarang ini , karna dengan berkembangnya teknologi telekomunikasi sangat memudahkan setiap orang ataupun sebuah perusahan dalam bertelekomunikasi, salahsatu contohnya yaitu dengan munculnya sistem VSAT (Verry Small Aperture Terminal) pada Telekomunikasi. VSAT merupakan alat telekomunikasi data yang menggunakan satelit sebagai transpondernya, Teknologi yang digunakan VSAT tersebut memiliki kelebihan dibandingkan jenis telekomunikasi data lain dalam hal jangkauan, karna satelit yang digunakan VSAT bisa menjangkau jarak yang jauh dengan meliputi sepertiga permukaan bumi dan memiliki kecepatan pengiriman data yang tinggi. Untuk itu penulis mengambil VSAT sebagai judul Kerja Praktek . Pada Laporan kerja Praktek ini , penulis menganalisis VSAT yang digunakan oleh PERUM LPPNPI (PT.AIRNAV) Pekanbaru , perangkat, alur komunikasinya, serta troubleshooting jika terjadi permasalahan pada VSAT. ABSTRACT The pace of technology development in the present growing so rapidly, not least Telecommunications technology , Telecommunications technology is very important at the present time. because with the development of telecommunications technology is very easy for every person or a company in the telecommunications. one of the main examples are the emergence of VSAT systems (Verry Small Aperture Terminal) in Telecommunications. VSAT is a tool data telecommunications that uses satellite as transponders, Used VSAT technology has advantages over other types of data telecommunications in terms of range, VSAT satellite used because it can reach long distances to cover one third of the earth's surface and has a high speed data transmission. To the authors take VSAT as title to practice job. In report work practice this , authors analyze VSAT used by PERUM LPPNPI (PT.AIRNAV) Pekanbaru, device, the flow of communication, as well as troubleshooting in case of problems VSAT.

This seminar focuses on the core building blocks of hydrogen sulfide treating
process systems, equipment and economics. This program will emphasize the
process unit operation fundamentals, safe utilization of these fundamentals by
operations, engineering, maintenance and support personnel.

This publication presents a system of proactive classroom management for use in elementary school, grades K-6. Characteristics of the proactive concept are described as: (1) planning for prevention rather than reaction toobehavior problems; (2) considering the classroom as a total process of facilitating achievement as well as appropriate behavior; (3) dealing with the entire class rather than with individual student behavior; and (4) defining behavior management as an entire system utilizing the principles of behavior theory rather than isolated techniques. An overview is provided of behavioral principles that will give teachers a broad-based understanding of why children behave and misbehave. A classroom management system is presented based on behavioral principles. The book is organized into eight chapters: (1) The Behavior Management Hf.erarchy; (2) Classroom Environment; (3) Scheduling; (4) Affecting Antecedents: Rules and Routines; (5) Reinforcement Strategies; (6) Parental Involvement; (7) Using Consequences To Affect Behaviors; and (8) Concluding Remarks, consisting of a checklist to help in assessing the classroom and for troubleshooting behavior problems. (LL)

En este articulo se presentan los resultados del diagnostico y analisis de algunas causas que obstaculizan el aprendizaje del Algebra Lineal en los estudiantes de ingenieria de la Universidad Tecnologica de Pereira. Igualmente pretende identificar la importancia que se le da a la asignatura dentro de los programas de ingenieria, mediante encuestas que se realizaron a los profesores que orientan diferentes asignaturas de matematicas como a los directores de los diferentes programas. Ademas se presentan conclusiones y recomendaciones acerca del estudio.

Expert systems use human knowledge often stored as rules within the computer to solve problems that generally would entail human intelligence. Today, with information systems turning out to be more pervasive and with the myriad advances in information technologies, automating computer fault diagnosis is becoming so fundamental that soon every enterprise has to endorse it. This paper proposes an expert system called Expert PC Troubleshooter for diagnosing computer problems. The system is composed of a user interface, a rule-base, an inference engine, and an expert interface. Additionally, the system features a fuzzy-logic module to troubleshoot POST beep errors, and an intelligent agent that assists in the knowledge acquisition process. The proposed system is meant to automate the maintenance, repair, and operations (MRO) process, and free-up human technicians from manually performing routine, laborious, and timeconsuming maintenance tasks. As future work, the proposed system is to be parallelized so as to boost its performance and speed-up its various operations.

A study by the Libyan Petroleum Institute of Libya (LPI) evaluated the performance of desalination at four Libyan oil-processing companies for two years of operation. The performance criteria were performance ratios, conversion ratios, availability factors and thermal efficiencies. Mass and energy balances of the units were checked. Construction materials used with regard to corrosion resistance and mechanical strength were checked. Cost analysis was conducted for each of the desalination units. The cost of unit product of distillate water was compared with international costs of water. Problems facing the desalination units were discussed and an attempt made to suggest solutions.

El criterio vigente para enfrentar situaciones indeseadas es tomar decisiones en base a conceptos y paradigmas predefinidos, con lo que se “resuelve” un aspecto del problema, pero se genera fallas en otros aspectos, que devienen en problemas aún más graves que el original. La resolución de problemas se maneja a nivel estratégico y se requiere un enfoque novedoso para enfrentar los problemas estratégicos. Para esto, se emplea una matriz para la resolución de problemas complejos, el cual se construye mediante dos ejes cartesianos que definen cuatro dimensiones y cuatro campos de análisis. Esta herramienta permite analizar conjuntamente, la perspectiva del decisor en relación a su circunstancia de decisión.

Whereas product-oriented worked examples only present a problem solution, process-oriented worked examples additionally explain the rationale behind the presented solution. Given the importance of understanding this rationale for attaining transfer, process-oriented worked examples would be expected to result in more efficient transfer. However, a previous study in the domain of electrical circuits troubleshooting suggested an expertise-reversal effect: Process information might initially impose an effective cognitive load and lead to higher efficiency but may become redundant and impose an ineffective load when training progresses, which hampers efficiency. The present study confirmed this hypothesis. The results are discussed in terms of theoretical and practical implications for the design of optimal training sequences for complex cognitive tasks.

Abstract Examines some of the reasons why the task of developing intelligent multimedia applications is so complex. The authors describe some ideas being explored in an effort to reduce the complexity of this software development task. There are significant barrier preventing nonprogrammers or occasional programmers from rapidly prototyping intelligent multimedia applications. A perspective is presented on why this barrier exists and how the barrier might be overcome. Two prototypes of task-specific knowledge acquisition ...

Anecdotal and research evidences show that the Free and Open Source Software (F/OSS) development model has produced a paradigm shift in the way we develop, support, and distribute software. This shift is not only redefining the software industry but also the way we teach and learn in our software engineering (SE) courses. But for many universities F/OSS is seen as an optional low cost technology to support the IT infrastructure and administrational duties. Few see F/OSS as an opportunity for students to learn the SE concepts and skills we teach. Furthermore, it is still an open question as to whether the F/OSS methodology can be effectively used to teach SE courses within the formally structured curriculum in most universities. This paper discusses F/OSS projects as bazaars of learning that offer a meaningful learning context. The discussion is centered on a pilot study in which students were involved in software testing in F/OSS projects. We present the teaching and learning framework we used in the pilot study and report on our experiences, lessons learned, and some practical problems we encountered. Our grading and evaluation approach show that the students did relatively well as bug hunters and reporters. Results from two online surveys indicate that students are motivated in participating in software testing in the bazaar, and they are willing to participate in project activities long after their graduation. The study reveals one possible way SE educators can teach and integrate F/OSS into their formal curricular structure.

Capillary LC is one of the most powerful analytical tools available for separation scientists. Its unique analytical properties are associated with numerous technical issues that may cause operation of such systems to be somehow troublesome. Because of that, a good experience in capillary LC troubleshooting is required to keep the system in shape and, in effect, to obtain reliable results. In this paper, we summarize the most important issues of the capillary systems, including void and dead volumes, leakages, sample injection, and a multidimensional LC approach. The aim of this paper was to provide practical advise on system diagnosis, and to present solutions to problems discussed. Also, several exemplary nano-LC separations are included to demonstrate some typical problems encountered in our daily work.

The OSI model, developed by ISO in 1984, attempts to summarize complicated network cases on layers.
Moreover, network troubles are expressed by taking the model into account. However, there has been no standardization for network troubles up to now. Network troubles have only been expressed by the name of the related layer. In this paper, it is pointed out that possible troubles on the related layer vary and possible troubles on each layer are categorized for functional network administration and they are standardized in
an eligible way. The proposed model for network trouble shooting was developed considering the OSI model.

This paper presents a theory of continuum mechanics for strongly orthotropic materials that proposes a more informative asymmetric strain and rotation tensor. The infinitesimal strain tensor and likewise, Green-Lagrange strains avoid this material property dependency by the use of effective shear strain averaging. The linear formulation of the proposed non-symmetric strain tensor field differentiates planar shear strains based on principal material direction and mechanical properties - adding determinacy to the problem. The separation of in-plane shears also allows the formulation of a first order rotation tensor that gives change in principal property direction when applied to orthotropic materials - which is a new interpretation of rigid body rotation. Subsequent to the theory, a new extended Mohr's plot and compliance tensor are presented. It is demonstrated in a numerical example that application of the proposed tensors yields the best solution when compared with an analytic...

find inconsistencies in the time reporting of a Tobii T60XL eye tracker. Their study raises important questions about the use of the Tobii T-series in particular, and various software and hardware in general, in different infant eye tracking paradigms. It leaves open the question of the source of the inconsistencies. Here, observations from a Tobii eye tracker are presented to elucidate possible sources of timing inconsistencies, including those found by Morgante et al. The ramifications of the reported timing inconsistencies are related to various infant paradigms. The focus is on the level of concern a researcher should have if any eye tracker displays these timing characteristics, and what corrective measures may be taken. While posing no problems for some paradigms, timing inconsistencies are potentially problematic (but correctable) when assessing event-related looking behavior. Observed timing contraindicates use in fast gaze-contingent displays (<100 ms). General suggestions are made regarding timing in eye-tracked data collection. Correspondence should be sent to Sarah C. Creel,

Protetive atmospheres are used in powder metallurgy to prevent oxidation and to reduce oxides, to control carbon contents of iron and iron alloys, and to flush volatilized lubrificants from the furnace. Another important function of the atmosphere during sintering is to burn and remove the hydrocarbon lubrificants used to compact the powdered metal. However, one of the most important services that the Air Products &quot;industrial gas company&quot; can provide to its heat treat customers is assistance in troubleshooting their furnace(s) when there are problems. To be able to troubleshoot a furnace, it is important to know what the typical problems are that arise, what causes them and how to fix or minimize to problem. This work should aid in finding the source of the problem with analysis equipment, and, by using your knowledge of the furnace and the process, solve the problem. Summarizing, (1) ensure system integrity, (2) Know the required safety interlocks, and (3) Verify their operation.

Diagnose and solve your PC problems with this easy-to-understand guideWritten by veteran For Dummies author Dan Gookin, this straightforward guide shows you how to diagnose and solve the most common hardware and software problems your PC may encounter. In addition, he presents advice for preventing PC problems in the first placeand clearly explains how to create a safe and secure PC environment.Walks you through ways to diagnose the most common PC hardware, software, and operating system problemsOffers clear and easy-to-understand solutions for confidently handling these problemsShares valuable advice about maintaining your system to maximize its lifespanReviews an array of useful toolsCovers Windows Vista, Windows 7, and Internet Explorer 8Troubleshooting & Maintaining Your PC All-in-One For Dummies, 2nd Edition helps you to confidently handle whatever PC problems you may encounter.