Knowledge

Hitungan Penentuan Awal Bulan Hijriah dan 1 Syawal 1443H

By • • Knowledge, Other, Public • , , • 2 minutes of reading

Salam, bermula awal bulan Muharram 1443H/2021M, negara-negara MABIMS telah menggunakan kriteria yg baru bagi kebolehnampakan hilal (imkanurrukyah) berkaitan dengan penetapan awal bulan Hijriah, iaitu tinggi bulan tidak kurang 3° dan jarak lengkung tidak kurang 6.4°, dan tidak lagi menggunakan nilai-nilai 2° dan 3° atau umur bulan 8jam. Bagi kebolehnampakan anak bulan Syawal tahun ini, ianya agak menarik (sehinggakan telah menimbulkan pelbagai polemik dikalangan masyarakat) disebabkan data falak menunjukkan nilai jarak lengkungnya sangat hampir dengan kriteria minimum. Berdasarkan kiraan falak untuk 1 Mei 2022, iaitu hari ke-29 Ramadan (hari melihat anak bulan Syawal), tinggi bulan di Tg Cincin, Langkawi (stesen rujukan […]

Hitungan Penentuan Awal Bulan Hijriah dan 1 Syawal 1443H Read More »

GDM2000, GDM2000 (Rev2006), GDM2000 (Rev2009), GDM2000 (Rev2016) and GDM2020

By • • Knowledge, Project, Public, Research, Teaching • , , , • 1 minute of reading

In addressing the effects of plate tectonic motion due to natural disasters such as earthquakes on the coordinates reference system and vertical datum systems for the whole country, JUPEM has successfully established a more accurate, precise and contemporary GDM2020. This newly derived geodetic datum system is fully aligned to ITRF2014, where velocities and PSD are modelled as an intrinsic component of the kinematic/ semi-kinematic concept of the CORS coordinates. In order to facilitate the conversion of various coordinates system in Malaysia, JUPEM has produced numerous sets of datum transformation and map projection parameters to relate the different types of coordinate

GDM2000, GDM2000 (Rev2006), GDM2000 (Rev2009), GDM2000 (Rev2016) and GDM2020 Read More »

Published Paper 2022 in Springer Link

By • • Jurnal, Knowledge, Research • , , , , , • 1 minute of reading

Agent-Based Model for Analyzing COVID-19 Infection in the Campus Using AnyLogic Software W. X. Gan & S. Amerudin  Conference paper First Online: 01 January 2022 Link: https://link.springer.com/chapter/10.1007/978-3-030-94191-8_42 Cite this paper Gan, W.X., Amerudin, S. (2022). Agent-Based Model for Analyzing COVID-19 Infection in the Campus Using AnyLogic Software. In: Ben Ahmed, M., Boudhir, A.A., Karaș, İ.R., Jain, V., Mellouli, S. (eds) Innovations in Smart Cities Applications Volume 5. SCA 2021. Lecture Notes in Networks and Systems, vol 393. Springer, Cham. https://doi.org/10.1007/978-3-030-94191-8_42

Published Paper 2022 in Springer Link Read More »

Geographic Information Systems (GIS) are migrating to the cloud and mobile platforms. 

By • • Knowledge, Research, Teaching • , , , • 2 minutes of reading

Geographic Information Systems (GIS) are a systematic collection of computer hardware, software, geographic data, and persons designed to record, store, update, manage, analyse, and present all types of geographically linked information. GIS is based on data that has a primary link to space, which includes any data about things and activities that occur in nature.  Most of the top GIS software vendors have developed cloud GIS solutions, and those that have not yet done so must do so. The GIS user community is fully aware of the benefits of cloud computing, and there are several options–for example, public vs. private

Geographic Information Systems (GIS) are migrating to the cloud and mobile platforms.  Read More »

Internet of Things (IoT)

By • • Knowledge, Other, Research, Teaching • , • 8 minutes of reading

Internet of Things (IoT) has become a trend nowadays. Whether it is a laptop, smartphones, or even home appliances such as smart lights, etc, every device is connected to the internet. In this way, people can operate the device easily with voice assistants or smartphones. The way this technology is developing, there may come a time shortly when every electrical device will be connected to the internet. This will make people’s life much easier and convenient. Artificial Intelligence (AI) and the Internet of Things (IoT) are two of the technologies which are rapidly growing day by day and have the scope of heading towards an

Internet of Things (IoT) Read More »

Internet of Bodies (IoB)

By • • Knowledge, Other, Public, Research, Teaching • , , • 8 minutes of reading

The term Internet of Bodies conjures up images of humans with cyborg-like features, controlling computers with your mind and syncing up iron man hearts. But you may be surprised to hear that IoB is now not just a science fiction plot.  Almost one billion people worldwide and nearly 70% of the US population are already using IoB. This is the wearable market- smartwatches and fitness trackers. These are all part of the IoB ecosystem, although futuristic inventions that run through your mind may not be that far away either. IoB is revolutionizing healthcare and on its way to improving our day-to-day conveniences, but it

Internet of Bodies (IoB) Read More »

GNSS for Underwater

By • • Knowledge, Research, Teaching • , , , • 1 minute of reading

The optimal arrangement of buoys is determined in terms of accuracy and availability depending on the number of available buoys and targeted water depth for an efficient operation. For example, at a targeted depth of 30 m in fresh water, a maximum horizontal position root-mean-square (RMS) error of less than 3 m can be achieved with a set of five buoys providing a service radius of up to 72 m. https://doi.org/10.3390/rs12213636 The formal transfer of GNSS under water is not possible. The radio signals don’t reach very far underwater, they’re basically useless for any submarine below the surface. If it is

GNSS for Underwater Read More »

Terms – Geographic(al) Information System, GIScience, Geomatics, Geoinformatics, Geoinformation Technology and Geospatial Technology

By • • Knowledge, Project, Public, Research, Teaching • , , , , , , , , • 7 minutes of reading

Common people, often, get confused with the terms Geographic(al) Information System, GIScience, Geomatics, Geoinformatics, Geoinformation Technology and Geospatial Technology. To understand the differences or similarities among them we need to fine-tune our understanding about these frequently used and interchangeable terms. Geographic Information System (GIS) is a computer-based information system used to digitally represent and analyze the geospatial data or geographic data. The GIS has been called an ‘enabling technology’, because it offers interrelation with the wide variety of disciplines which must deal with geospatial data. Each related field provides some of the techniques which make up a GIS. Many of these related fields emphasize data collection; GIS brings

Terms – Geographic(al) Information System, GIScience, Geomatics, Geoinformatics, Geoinformation Technology and Geospatial Technology Read More »

Spatial vs Geospatial [2]

By • • Knowledge, Public, Research, Teaching • , , • 3 minutes of reading

Mike Goodchild believes that we should make a distinction between spatial and geospatial believing that if spatial is special then geospatial is even more special! The way he sees it is that geospatial is a subset of something much larger that encompases any spatiotemporal frame, any spatial resoultion, non-Cartesian spaces and metrics and so on.  Spatial represents the big picture while geospatial carves out its own area of interest at on on the earth’s surface  He goes on to suggest that any theory of geospatial (geographic information) should be developed quite separetely from a theory of spatial (spatial information) with the proviso

Spatial vs Geospatial [2] Read More »

Spatial vs Geospatial [1]

By • • Knowledge, Public, Research, Teaching • , , , , • 2 minutes of reading

Often my students ask about the difference(s) between spatial and geospatial. These two words appear very frequently in remote sensing and GIS literature. The word spatial originated from Latin ‘spatium’, which means space. Spatial means ‘pertaining to space’ or ‘having to do with space, relating to space and the position, size, shape, etc.’ (Oxford Dictionary), which refers to features or phenomena distributed in three-dimensional space (any space, not only the Earth’s surface) and, thus, having physical, measurable dimensions. In GIS, ‘spatial’ is also referred to as ‘based on location on map’. Geographic(al) means ‘pertaining to geography (the study of the

Spatial vs Geospatial [1] Read More »

Scroll to Top