Tilt compensated mechanical measurement mechanism for very shallow water USV bathymetry

Currently researchers are advancing unmanned surface vehicle (USV) for bathymetry and hydrography applications. The idea of USV was introduced to avoid the risk and danger of personnel on the water terrain. When it comes to shallow water bathymetry mapping most method has the limitation to measure terrain which less than 1 meter deep. Commonly USV uses sonar depth sensor to measure the water depth yet it has a minimum range which it can measure. In this paper, the USV has been equipped with an additional mechanical bar measurer to be used on the very shallow part of the water bodies. By lowering and measuring the angle of the bar respect to the boat’s draft, the depth of the very shallow water can be obtained. The cases of the rocking of the boat are also being considered by measuring the roll and pitch and implement forward kinematic method for depth correction

The central bank digital currency in malaysia : A literature review

Central Bank Digital Currency (CBDC) is a digital form of central bank money, and is different from traditional reserves or settlement accounts balances. In line with the digital technology era, CBDC has gained interest among the majority of the countries. Central banks in a number of countries have started experimenting, piloting, launching, and have laid their direction on CBDC. However, the development of CBDC in Malaysia is still behind compared to many other countries in the world. This paper aims to present the current status of CBDC in Malaysia. To achieve the goal, this paper explores literature reviews on CBDC, countries’ milestones on CBDC and Malaysia’s Central Bank stand on CBDC. This review found that Malaysia’s Central Bank has no intention for the immediate plan for CBDC in Malaysia. However, Malaysia’s Central Bank continues assessing the CBDC potential, especially in the digital assets and payments space. This study also found that Malaysia’s Central Bank participated in a cross-border payments trial under Project Dunbar

The Central Bank Digital Currency in Malaysia: a literature review

Central Bank Digital Currency (CBDC) is a digital form of central bank money and is different from traditional reserves or settlement accounts balances. In line with the digital technology era, CBDC has gained interest among the majority of the countries. Central banks in a number of countries have started experimenting, piloting, launching, and have laid their direction on CBDC. However, the development of CBDC in Malaysia is still behind compared to many other countries in the world. This paper aims to present the current status of CBDC in Malaysia. To achieve the goal, this paper explores literature reviews on CBDC, countries’ milestones on CBDC and Malaysia’s Central Bank's stand on CBDC. This review found that Malaysia’s Central Bank has no intention for the immediate plan for CBDC in Malaysia. However, Malaysia’s Central Bank continues to assess the CBDC potential, especially in the digital assets and payments space. This study also found that Malaysia’s Central Bank participated in a cross-border payments trial under Project Dunbar. Jasni Mohamad Zain2, Norbik Bashah Idris1 and Engku Rabiah Adawiah Engku Ali

Evaluation of introduced varieties of maize (Zea mays L.) in Sarawak

Seven flint and dent type maize varieties from the International Maize and Wheat Improvement Center (CIMMYT), Mexico, one sweet corn variety from Hawaii and two sweet corn varieties from Peninsular Malaysia were evaluated for their grain yield and shelling percentages in Sarawak during the padi off-season. Among the flint and dent types, five varieties, CIMMYT 2.3,4.5 and 8 yeild over 4.0 ton/ha and merit attention. Their shelling percentages were satisfactory. Among the sweet corn varieties, variety Chinta was most promising for seed production while the lowest yielding variety. Hawaiian Supersweet 9 showed poor performance. Further evaluation of these varieties in the following padi main season is recommended before any conclusion can be made

Pengaruh Strategi Pemasaran Menggunakan Social Media Dan E-money Terhadap Impulse Buying

Penelitian ini bertujuan untuk mengetahui seberapa besar Sosial Media dan E-Money berpengaruh terhadap Impulse Buying secara parsial dan simultan. Penelitian ini menggunakan 100 sampel responden pelanggan Café Justmie Kota Gorontalo. Metode sampling yang digunakan dalam penelitian ini adalah teknik sampel non probability sampling dan jenis data yang digunakan dalam penelitian ini adalah data primer. Metode analisis data yang digunakan adalah analisis regresi linier berganda, uji parsial dan uji simultan. Hasil penelitian menunjukan bahwa secara parsial Sosial Media berpengaruh terhadap Impulse Buying ditunjukan dengan nilai t hitung 2,889 lebih besar dari t tabel 1,661, sedangkan E-Money berpengaruh terhadap Impulse Buying dengan nilai t hitung 7,722 lebih besar dari t tabel 1,661. Sedaangkan hasil penelitian uji F menunjukan F hitung 29,407 lebih besar dari F tabel 3,09 dengan taraf signifikan 0,05. Artinya Sosial Media dan E-Money secara simultan mempengaruhi Impulse Buying pelanggan Café Justmie Kota Gorontalo. Nilai R Square dalam penelitian ini adalah variabel Sosial Media dan E-Money dalam menjelaskan variabel Impulse Buying sebesar 0,547 atau 54,7% masuk kategori sedangkan, 45,3% dipengaruhi oleh variabel lain yang tidak dijelaskan dalam penelitian ini seperti variabel cashback dan price discount. Kata Kunci: Social Media, E-money, Impulse Buyin

Multiplexing of unformatted asynchronous serial data to a single NMEA 0183 protocol compliance data-stream for autonomous surface vehicles data logging

Development of autonomous surface vehicle (ASV) for hydrography survey requires varieties of transducers to be setup. However, several of the commercial of the shelf (COTS) transducers are using a different format of data transmission. Therefore, there is a need for built-in communication protocols for seamless integration to your monitoring platform and data logging. This paper focuses on the practical implementation of the technique to convert unformatted asynchronous serial data from transducers into NMEA 0183 protocol. NMEA 0183 protocol is being selected as the common protocol since it is used by many marine vehicles. The technique lies on extracting the non-formatted asynchronous serial data and generates a custom made NMEA sentence that complies with the format. By implementing such technique, the data will not only synchronize in a single format but also stamp with the global positioning system (GPS) data which is crucial for mapping

Development and initial testing of an autonomous surface vehicle for shallow water mapping

Current technology offers variety of methods for underwater mapping a.k.a. bathymetry where Autonomous Surface Vehicle (ASV) is used to complement the weakness of other bathymetry approach. In initializing the design of AquaDrone ASV, it started from deciding the specification of the ASV to draw a guideline of the prototype limit. The hull of the ASV was the first to be taken into consideration due to the measure of the vessel’s payload and stability. It was built with dual control modes which are the autonomous and the tele-operated mode with Global Positioning System (GPS) receiver and compass module to assist its localization and navigation. The ASV was then tested at swimming pool, ponds and lakes to analyze its performance on maneuvering, sensors fusion, data logging, and communication range. It was proved to be operational

Permeability and antifouling augmentation of a hybrid PVDF-PEG membrane using nano-magnesium oxide as a powerful mediator for POME decolorization

This study focused on developing a hydrophilic hybrid polyvinylidene fluoride (PVDF)-polyethylene glycol (PEG) hollow membrane by incorporating Nano-magnesium oxide (NMO) as a potent antifouling mediator. The Nano-hybrid hollow fibers with varied loading of NMO (0 g; 0.25 g; 0.50 g; 0.75 g and 1.25 g) were spun through phase inversion technique. The resultants Nano-hybrid fibers were characterized and compared based on SEM, EDX, contact angle, surface zeta-potential, permeability flux, fouling resistance and color rejection from palm oil mill effluent (POME). Noticeably, the permeability flux, fouling resistance and color rejection improved with the increase in NMO loading. PVDF-PEG with 0.50 g-NMO loading displayed an outstanding performance with 198.35 L/m2·h, 61.33 L/m2·h and 74.65% of water flux, POME flux and color rejection from POME, respectively. More so, a remarkable fouling resistance were obtained such that the flux recovery, reversible fouling percentage and irreversible fouling percentage remains relatively steady at 90.98%, 61.39% and 7.68%, respectively, even after 3 cycles of continuous filtrations for a total period of 9 h. However, at excess loading of 0.75 and 1.25 g-NMO, deterioration in the flux and fouling resistance was observed. This was due to the agglomeration of nanoparticles within the matrix structure at the excessive loading

The central bank digital currency in Malaysia a literature review

Central Bank Digital Currency (CBDC) is a digital form of central bank money, and is different from traditional reserves or settlement accounts balances. In line with the digital technology era, CBDC has gained interest among the majority of the countries. Central banks in a number of countries have started experimenting, piloting, launching, and have laid their direction on CBDC. However, the development of CBDC in Malaysia is still behind compared to many other countries in the world. This paper aims to present the current status of CBDC in Malaysia. To achieve the goal, this paper explores literature reviews on CBDC, countries’ milestones on CBDC and Malaysia’s Central Bank stand on CBDC. This review found that Malaysia’s Central Bank has no intention for the immediate plan for CBDC in Malaysia. However, Malaysia’s Central Bank continues assessing the CBDC potential, especially in the digital assets and payments space. This study also found that. Malaysia’s Central Bank participated in a cross-border payments trial under Project Dunbar