Effects of different cross-section shapes on bending and weight of harvesting pole by using finite element analysis

Harvesting pole is a main requirement in harvesting activity that involves tall trees. A long pole always has problems with bending and weight. Study on the effect of cross-section shapes on bending and weight may give some information about the best design for harvesting pole. Laboratory testing is expensive and time consuming. Finite element analysis using computer software is the best method and cost less. A total of six designs of pole cross-section were tested using Pro-Mechanica software for obtaining their bending/deflection. The six shapes are circular, hexagon, octagon, decagon, icosagon and ellipse. A total of five testings were implemented, that consist of combination of three pole conditions, loaded/unloaded, end/middle constrained and same/different weight. The analyses results show that the circular cross-section shape is the strongest shape to resist bending. Ellipse cross-section shape has different value of bending depends on the orientation. Final evaluation shows circular and icosagon were the best cross-section of harvesting pole

Flight data monitoring/tracker system for search and rescue mission

Traditionally, Kalman Filter is used for the purpose of mixing several input signals and extracting a more reliable output, which greatly benefits aircraft navigation. This paper considers a fusion of four sensor systems: Global Positioning System (GPS), accelerometer, gyroscope and magnetometer. The resultant device, known as Starfish Main Tracking Unit (MTU), is a Flight Data Monitoring (FDM) / Tracking System equipment that uses General Packet Radio Service (GPRS) / Iridium / ICS (Internet Communications Services), which provides low cost telemetry as well as multiple solutions for global flight following and flight data transfer between aircraft and ground. Users from ground are able to monitor their fleet, configure their systems and also generate various flight reports from a single web-based interface, named the Starfish Fleet Management system. This developed system complements the Black Box by downloading limited aircraft data to the ground, provides real time tracking and assist in Search and Rescue (SAR) mission

Stores separation simulation development: a roadmap to system realisation via intelligent data management system

An Intelligent-Data Management System (IDMS) for store separation analysis has been developed for Stores Separation Simulation program. The characteristics of the IDMS generically focuses on gathering, collecting, analysing, reporting, summarising and visualising validated data prior separation activity in simulated environment. The components of IDMS are Aircraft Configuration, Interface Configuration, Stores Geometry, Pylon Configuration and Cube (a multi-dimensional visibility of Form, Fit and Function stores-platform Data Verifier). Overall, this project combined information from separation patterns analysis by integrating multi-dimensional databases, systematic-data orchestration; rules based data mining for stores separation verifier into one data management system. This paper presents the program review of overall store separation simulation program

The potential of implementing Building Information Modelling (BIM) in Malaysian Construction Industry: An exploratory study

In Malaysia, we cannot deny the widespread of Information and Communication Technology (ICT) and the influence of ICT to speed up the working process. Lots of benefits can be gained from utilisation of ICT, especially in construction industry. For decade, construction industry can be considered as a fragmented industry because of lacking of sharing information through its life cycle and with other parties. ICT can be a tool for integrating and collaborating among parties in the construction projects, and Building Information Modelling (BIM) is one of the platforms that can be used to promote the collaboration between parties in the construction projects. Eastman et al., 2011, interpreted BIM as “a digital representation of the building process to aid in exchanging and interoperability information in a digital format." Basically, BIM will act like a respiratory system with full of information to share with for construction projects. Even though there are lots of benefits can be gained by utilisation of BIM, it is a difficult task to convince the construction companies to embrace and implementing it due to some reasons. Since there is a short of understanding of BIM by the construction companies in Malaysia, this paper is intended to review the strategy and action plan from Singapore and Hong Kong in adopting and implement BIM, which could be used in supporting the implementation of BIM in Malaysian Construction Industry. As a summary, this paper revealed that involvement from government, collaboration between government, private sector and universities and awareness program are the most of the important criteria that must be taken into consideration once to developing BIM implementation strategy plan for Malaysian construction industry

Case study on aerodynamics stability of bixel wing-in-ground effect craft

Wing-in-ground effect (WIG) crafts fly efficiently by exploiting the ground effect i.e. generating a notable rise in the lift-over-drag ratio when a three-dimensional wing approaches a large flat plane either water or ground surface. A successful WIG craft will create another mode of transportation categorise in between commercial airplanes and marine vessels. Hence, this paper presents a case study of Bixel Wing-In-Ground-Effect aerodynamic (Bixel WIG). The initial task is to simulate Bixel WIG aerodynamic using XFLR5 software. The craft configuration is a double wing flat aerofoil wave rider design with aspect ratio variation from 0.25 to 0.5 as in USA PATENT #5105898 C.BIXEL. Based on the result of the simulation, the design of the six seater double wing Bixel WIG is proposed. The design is benchmarked against Lippisch RHB X-114 and UH-18 SPW

Quranic Features of Healing and Treatment: an Indexing of Quranic (Medical Instructions) Verses

This paper deals with an important issue in religious thought (religion and modern sciences), which was a great challenge to the eternal validity of the text. Quran, as a revealed book, proved its power in term of legal system, and theological and philosophical presence. However, there has been a controversy on this subject. This paper used the descriptive method in presenting this topic. The researchers found that the major works on this issue have been done by Tantawi Jawhari, Maurice Bucalle, and Zaglul al-Najjar. Additionally, this context has a crucial role to play in classifying some verses as miracles of the Quran

Stabilizing attitude control for mobility of wing in ground (WIG) craft - a review

Wing in ground crafts development have been rapidly advancing in recent years. The current paper reviews the researches and developments of existing stability control system technology’s development and enhancement for wing in ground effect crafts. The review is critically intended for the development of the control system for two-seater Dragonfly 2, a hoverwing type craft. The current review will commence with the introduction on the theory behind the in ground effect phenomenon on the crafts, its regulations and the types of wing in ground crafts, their advantages and disadvantages, and their stability and control issues. This paper also discusses the available attitude control system types of wing-in-ground craft (WIG), its experiments, simulations and computational methods done especially on both the lon-gitudinal and lateral motion stability

Modeling and simulation of a high accurate aircraft ground-based positioning and landing system

The rapid increase in aviation industry requires parallel effective plans, programs and designs of systems and facilities nationwide to fulfill the increasing needs for safe air transportation. Aircraft landing remains a problem for a long time all over the world. Systems that aircraft rely on in landing are unreliable to perform a precise guidance due to many limitations such as inaccuracy, unreliability and dependency. In low visibility conditions, aircrafts are diverted to another airport. However, low visibility can also affect all airports in the vicinity, forcing aircrafts to land in low visibility conditions depending on Instrument Flight Rules (IFR). Aircraft approach and landing are the most hazardous portions of flight; accidents records indicated that approximately 50 percent of the accidents occur during these portions. Aircraft landing Category IIIC is not yet in operation anywhere in the world. It requires landing with no visibility or runway visual range. Currently, Global Positioning System (GPS) is the main navigation system used all over the world for aircraft navigation, approach and landing. However, GPS accuracy is not sufficient to perform a perfect landing due to the possibility of aircraft to be drifted out of the runway. The accuracy of GPS could be improved to 3 meter by receiving correction messages. Improved accuracy has not been able to meet International Civil Aviation Organization (ICAO) standards for aircraft precision landing. In this study, aircraft landing systems characteristics, performances and accuracies have been studied and compared for the purpose of assessing limitations and drawbacks. An aircraft landing system with improved performance is proposed to meet ICAO standards for all-weather aircraft landing and to provide accurate guidance for approaching and landing aircrafts

Analgesic synergism of gabapentin and carbamazepine in rat model of diabetic neuropathic pain

Purpose: To evaluate synergy in the analgesic effects of a combination therapy of carbamazepine (CBZ) and gabapentin (GBP) in diabetic neuropathic pain. Methods: Neuropathic pain was produced in rats by a single intraperitoneal injection of streptozotocin (STZ) at 60 mg/kg. CBZ, GBP, and their combination were orally administered at varying doses (GBP 30 - 180 mg/kg; CBZ 20 - 40 mg/kg) comparable to their therapeutic doses in humans. Nociceptive responses in the diabetic rats were assessed using hot plate test. Results: Hot plate latency significantly increased with oral administration of GBP at a dose of 180 mg/kg when compared with control group (p < 0.05), while at a dose of 90 mg/kg, the increase was not significant. Oral administration of CBZ at doses of 20 and 40 mg/kg did not produce any significant impact on hot plate latency. However, a combination of GBP at 90 mg/kg and CBZ at 20 mg/kg produced significant increase in latency, compared with control group and other groups (p < 0.05), except the group that received 180 mg/kg GBP. The combination of low dose GBP 30 mg/kg and carbamazepine 30 mg/kg had no significant effect on latency (p > 0.05). Conclusion: The results obtained in this study provide useful information on the combination therapy of GBP and CBZ, which may be applied in the treatment of pain in diabetic neuropathy