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First Record of the Belemnite Genus Hibolithes from Late Jurassic–Early Cretaceous Turbidites from Malaysia

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Acta Geologica Sinica(English Edition) 2021年第2期95卷 333-341页

作者： Muhammad MURTAZA abdul hadi Abd RAHMAN Joerg MUTTERLOSE Najiatun NAJLA Mazshurraiezal Bin NASIR Department of Earth and Environmental Sciences Hazara UniversityMansehraKhyber Pakhtunkhwa 21120Pakistan Department of Geosciences Universiti Teknologi PETRONAS.Bandar Seri IskandarTronohPerak 31750Malaysia Department of Geology Mineralogy and GeophysicsRuhr-Universitat BochumUniversitatsstrasse 150Bochum 44801Germany

Discovery of the remains of belemnites referred to the Hibolithes *** the Jurassic–Cretaceous Pedawan Formation in Sarawak,on the island of Borneo(Malaysia)comprises four fragments of belemnite *** specimens are characterized by multiple fractures and vein *** fragments measuring about 130 mm are relatively intact,with only part of the alveolar region missing;a third piece represents the middle part of a rostrum,and the fourth specimen is too fragmentary to be assigned to any specific part of the *** on specimen characteristics,a Tithonian–Hauterivian age is *** sedimentary succession that yielded the belemnite material comprises thick shale that reflects the Te division of Bouma *** occurrence of a Hibolithes taxon in the uppermost Jurassic to lowermost Cretaceous Pedawan Formation sediments in Borneo reflects a near to global palaeobiogeographic distribution of this genus.

关键词： invertebrate paleontology Belemnitida Hibolithes turbidites Pedawan Formation Tithonian-Hauterivian Sarawak Borneo

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Performance Analysis of a Rooftop Hybrid Connected Solar PV System

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Energy Engineering 2022年第4期119卷 1729-1744页

作者： Hasan Falih Ahmed J.Hamed abdul hadi N.Khalifa Engineering Technical College Middle Technical UniversityBaghdad10074Iraq

In the present work,a 5-kW hybrid PV solar system was installed on the roof of a house in Diyala,Iraq(33.77°N,45.14°E elevation 44 m).The system consists of two strings,where each string consists of nine polycrystalline PV modules with 355 Wp in series,and the two strings are in *** energy storage system(ESS)consists of two parallel strings,each with four 12 V and 150 Ah tubular deep cycle batteries in series.A hybrid inverter of 5 kW rated power was operated in different *** results showed that May’s monthly energy consumption was about 822.9 and 1085 kWh,*** percentage distribution of the DC energy produced was about 1%system energy losses,27.9%was used to charge the ESS,34.3%was used to feed the grid,and the remaining 37.64%was used to share the *** energy percentage sharing the load was 16.67%from ESS,33.33%from the PV system,and 50%*** average daily reference,array,and final yields were 6.07,4.327,and 3.991 h/day,*** average array and load efficiencies were 12.3%and 92.24%,with the performance ratio at 65.4%.

关键词： Solar energy PV system final yield photovoltaic installations performance ratio hybrid PV system

Green Architecture for Dense Home Area Networks Based on Radio-over-Fiber with Data Aggregation Approach

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Journal of Electronic Science and Technology 2016年第2期14卷 133-144页

作者： Mohd Sharil abdullah Mohd Adib Sarijari abdul hadi Fikri abdul Hamid Norsheila Fisal Anthony Lo Rozeha A.Rashid Sharifah Kamilah Syed Yusof Department of Communication Faculty of Electrical EngineeringUniversiti Teknologi Malaysia Faculty of Electrical Engineering Mathematics and Computer SciencesDelft University of Technology

The high-density population leads to crowded cities. The future city is envisaged to encompass a large-scale network with diverse applications and a massive number of interconnected heterogeneous wireless-enabled devices. Hence, green technology elements are crucial to design sustainable and future-proof network architectures. They are the solutions for spectrum scarcity, high latency, interference, energy efficiency, and scalability that occur in dense and heterogeneous wireless networks especially in the home area network （HAN）. Radio-over-fiber （ROF） is a technology candidate to provide a global view of HAN＇s activities that can be leveraged to allocate orthogonal channel communications for enabling wireless-enabled HAN devices transmission, with considering the clustered-frequency-reuse approach. Our proposed network architecture design is mainly focused on enhancing the network throughput and reducing the average network communications latency by proposing a data aggregation unit （DAU）. The performance shows that with the DAU, the average network communications latency reduces significantly while the network throughput is enhanced, compared with the existing ROF architecture without the DAU.

关键词： Data aggregation unit dense homearea network green architecture heterogeneousnetwork radio-over-fiber.

TelG Mote: A Green Wireless Sensor Node Platform for Smart Home and Ambient Assisted Living

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Journal of Electronic Science and Technology 2016年第3期14卷 211-219页

作者： Mohd Rozaini Bin Abd Rahim Rozeha A.Rashid Norsheila Fisal Zubair Khalid abdul hadi Fikri Abd Hamid Universiti Teknologi Malaysia

The wireless sensor network （WSN） consists of sensor nodes that interact with each other to collectively monitor environmental or physical conditions at different locations for the intended users. One of its potential deployments is in the form of smart home and ambient assisted living （SHAAL）to measure patients or elderly physiological signals, control home appliances, and monitor home. This paper focuses on the development of a wireless sensor node platform for SHAAL application over WSN which complies with the IEEE 802.15.4 standard and operates in 2.4 GHz ISM （industrial, scientific, and medical） band. The initial stage of SHAAL application development is the design of the wireless sensor node named TelG mote. The main features of TelG mote contributing to the green communications include low power consumption, wearable, flexible, user-friendly, and small sizes. It is then embedded with a self-built operating system named WiseOS to support customized operation. The node can achieve a packet reception rate （PRR） above 80% for a distance of up to 8 m. The designed TelG mote is also comparable with the existing wireless sensor nodes available in the market.

关键词： Smart home and ambient assisted living wireless sensor network wireless sensor node.

Epithelial Layer Estimation Using Curvatures and Textural Features for Dysplastic Tissue Detection

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Computers, Materials & Continua 2021年第4期67卷 761-777页

作者： Afzan Adam abdul hadi Abd Rahman Nor Samsiah Sani Zaid Abdi Alkareem Alyessari Nur Jumaadzan Zaleha Mamat Basela Hasan Faculty of Information Science and Technology Center for Artificial Intelligence TechnologyUniversiti Kebangsaan MalaysiaBangiSelangor43300Malaysia Faculty of Science and Technology School of Mathematical SciencesUniversiti Kebangsaan MalaysiaBangiSelangor43300Malaysia Department of Information Technology and Computing Faculty of Computer StudiesArab Open UniversityAmmanJordan

Boundary effect in digital pathology is a phenomenon where the tissue shapes of biopsy samples get distorted during the sampling *** morphological pattern of an epithelial layer is greatly ***,the shape deformation model can normalise the distortions,but it needs a 2D *** theory,on the other hand,is not yet tested on digital pathology ***,this work proposed a curvature detection to reduce the boundary effects and estimates the epithelial *** boundary effect on the tissue surfaces is normalised using the frequency of a curve deviates from being a straight *** epithelial layer’s depth is estimated from the tissue edges and the connected nucleolus ***,the textural and spatial features along the estimated layer are used for dysplastic tissue *** proposed method achieved better performance compared to the whole tissue regions in terms of detecting dysplastic *** result shows a leap of kappa points from fair to a substantial agreement with the expert’s ground truth *** improved results demonstrate that curvatures have been effective in reducing the boundary effects on the epithelial layer of ***,quantifying and classifying the morphological patterns for dysplasia can be *** textural and spatial features on the detected epithelial layer can capture the changes in tissue.

关键词： Digital pathology grading dysplasia tissue boundary effect

High resolution facies architecture and digital outcrop modeling of the Sandakan formation sandstone reservoir, Borneo:Implications for reservoir characterization and flow simulation

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Geoscience Frontiers 2019年第3期10卷 957-971页

作者： Numair A.Siddiqui Mu.Ramkumar abdul hadi A.Rahman Manoj J.Mathew M.Santosh Chow W.Sum David Menier Department of Petroleum Geosciences Universiti Teknologi PETRONAS Department of Geology Periyar University Institute of Oceanography and Environment Universiti Malaysia Terengganu Department of Earth Sciences University of Adelaide School of Earth Sciences and Resources China University of Geosciences Beijing Laboratoire Géosciences Océan UMR CNRS 6538Campus de Tohannic

Advances in photogrammetry have eased the acquisition of high-resolution digital information from outcrops, enabling faster, non-destructive data capturing and improved reservoir modeling. Geocellular models for flow dynamics with in the virtual outcrop in siliciclastic deposits at different sets of sandstone facies architecture remain, however, a challenge. Digital maps of bedding, lithological contrast, spatial-temporal variations of bedding and permeability characteristics make it more easy to understand flow tortuosity in a particular architecture. An ability to precisely model these properties can improve reservoir characterization and flow modeling at different scales. Here we demonstrate the construction of realistic 2 D sandstone facies based models for a pragmatic simulation of flow dynamics using a combination of digital point clouds dataset acquired from LiDAR and field investigation of the Sandakan Formation, Sabah, ***, we present methods for enhancing the accuracy of outcrop digital datasets for producing high resolution flow simulation. A well-exposed outcrop from the Sandakan Formation, Sabah, northwest Borneo having a lateral extent of 750 m was chosen in order to implement our research approach. Sandstone facies and its connectivity are well constrained by outcrop observations, data from air-permeability measurements, bilinear interpolation of permeability, grid construction and water vector analysis for flow *** proportions were then enumerated in terms of static digital outcrop model(DOM) and facies model based on sandstone facies bedding characteristics. Flow simulation of water vector analysis through each of the four sandstone facies types show persistent spatial correlation of permeability that align with either cross-bedded orientation or straight with more dispersion high quality sandstone(porosity 21.25%-41.2%and permeability 1265.20-5986.25 mD) and moderate quality sandstone(porosity 10.44%-28.75% and permeabili

关键词： Siliciclastic sandstone facies Connectivity Heterogeneity Digital outcrop model Flow dynamics

基于Andrew正弦估计（ASE）的稀疏自适应滤波算法研究

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基于Andrew正弦估计（ASE）的稀疏自适应滤波算法研究

作者： abdul hadi 哈尔滨工程大学

学位级别：硕士

随着科学技术的不断进步,自适应滤波算法(Adaptive filtering algorithms,AFAs)在信号处理应用中被广泛使用,成为识别未知系统的重要工具。这些算法可以基于输入信号更新它们的滤波器系数,从而将期望信号和滤波器输出之间的误差最小化... 详细信息

随着科学技术的不断进步,自适应滤波算法(Adaptive filtering algorithms,AFAs)在信号处理应用中被广泛使用,成为识别未知系统的重要工具。这些算法可以基于输入信号更新它们的滤波器系数,从而将期望信号和滤波器输出之间的误差最小化。虽然国内外的学者已经提出众多的AFAs,但是他们针对的都是传统的信道,在实际应用中,许多未知信道都是具有先验的稀疏特性或者线性约束特性的,传统的AFAs已经不再适用。我们通常将未知系统建模为脉冲响应中只有几个非零系数的稀疏系统来进行稀疏系统识别(Sparse System Identification,SSI)。而传统的AFAs因为不是利用系统的稀疏结构进行设计的,在这种情景下性能表现不佳。此外,传统AFAs在许多实际情况下常见的非高斯脉冲噪声的性能表现也不佳。鉴于上述情况,我们引入Andrew’s Sine Estimator(ASE)作为代价函数来增强算法对脉冲噪声的鲁棒性,以便在识别稀疏系统方面表现出色。Andrew’s Sine曾被用于鲁棒统计和抗大异常值,但在自适应滤波理论中却没有得到太多关注。因此,我们设计了 ASE算法进行稀疏系统识别(SSI),以利用系统的稀疏性以实现更好的性能。这个算法是对成本函数使用梯度下降法实现稀疏约束,能够更好地估计了系统的脉冲响应。本文的主要工作总结如下:1)在水下声学通信和高清数字电视(HDDTV)传输等稀疏系统识别中,我们基于ASE成本函数引入了零吸收(Zero-Attracting,ZA)和重加权零吸收(Reweighted-Zero-Attracting,RZA)方法来利用未知系统的先验稀疏特性。我们通过在均方框架中使用ASE成本函数提出了两种新的稀疏自适应算法:ZA-Andrew’s Sine Estimator(ZA-ASE)和 RZA-Andrew’s Sine Estimator(RZA-ASE)。ZA-ASE 将滤波器系数的l1范数约束引入到代价函数中,从而在迭代过程中产生了零吸引因子,提高了系统识别和跟踪性能。RZA-ASE利用近似的l。规范约束或系数的对数和项构造了一个重新加权的零吸力因子,以达到比ZA-ASE算法更好的效率。2)为了进一步提高滤波性能,我们使用Lawson范数对ASE代价函数进行正则化,并开发了一种新的滤波算法:Lawson-ASE(LAW-ASE)算法,专门用于在脉冲噪声存在的情况下识别稀疏系统。因为Lawson范数可以近似表示l1和l0范数能够很好识别系统的稀疏性,所有我们使用Lawson范数和ASE函数构建该算法的代价函数,并且采用梯度下降法获得权重迭代更新方程。3)为了更好地估计稀疏系统并对冲击噪声进行处理,我们进一步提出了两种新的滤波算法,即 Lawson-Normalized-ASE(LNASE)和 Lawson-Proportionate-Normalized-ASE(LPNASE)。这些算法首先使用归一化和比例方法处理ASE的代价函数,然后添加了 Lawson范数惩罚。我们进行了多次仿真,以验证这些算法在高斯和冲击背景噪声的SSI设置中的性能。结果显示,所提出的算法具有出色的效率和鲁棒性。与其他传统算法相比,这些算法表现出更好的收敛性能和较低的均方误差(MSE)。

关键词：自适应滤波稀疏系统识别(SSI) Andrew’s正弦估计(ASE) ZA和RZA方案 Lawson范数脉冲噪声

Malmquist indices of productivity growth for Islamic and conventional banks in Malaysia

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Journal of Modern Accounting and Auditing 2010年第11期6卷 1-10页

作者： Mohamed Hisham Yahya Junaina Muhammad abdul Razak abdul hadi Department of Accounting and Finance Universiti Putra Malaysia Selangor 43400 Malaysia International School of Entrepreneurship Universiti Kuala Lumpur Kuala Lumpur 50250 Malaysia

This paper studies the total factor productivity （TFP） of banks in Malaysia with the emphasis on comparing the relative productivities of Islamic and Conventional banks. The Malmquist index approach is used to decompose productivity growth into technical efficiency and technological change. The productivity growth is measured and decomposed into technical change and efficiency change. The efficiency change is further decomposed into pure efficiency change and scale efficiency. It is found that Islamic banks＇ productivity growth is limited by its lack of technological change compared to its conventional counterparts. Nonetheless, both types of banks are operating at the correct level in terms of scale or size.

关键词： Malmquist index DEA (data exchange agreement) Malaysia Islamic banks efficiency productivity

Eco-friendly method for synthesis of zeolitic imidazolate framework 8 decorated graphene oxide for antibacterial activity enhancement

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Particuology 2020年第2期18卷 24-32页

作者： Nazerah Ahmad Nik abdul hadi Md Nordin Juhana Jaafar Nik Ahmad Nizam Nik Malek Ahmad Fauzi Ismail Muhammad Nabil Fikri Yahya Siti Aishah Mohd Hanim Mohd Sohaimi abdullah Advanced Membrane Technology Research Centre Universiti Teknologi Malaysia81310 SkudaiJohorMalaysia Malaysian Institute of Chemical Engineering Technology-Universiti Kuala Lumpur Lot 1988Bandar VendorTaboh Naning78000 Alor GajahMelakaMalaysia Chemical Engineering Department Universiti Teknologi PETRONAS32610 Seri IskandarPerakMalaysia Department of Biosciences Faculty of ScienceUniversiti Teknologi Malaysia81310 SkudaiJohorMalaysia Centre for Student Innovation and Technology Entrepreneurship Universiti Teknologi Malaysia81310 SkudaiJohorMalaysia

We report a rapid method for synthesis of zeolitic imidazolate framework 8(ZIF-8)-decorated graphene oxide(GO)composites(ZGO)with good antibacterial *** ZGO composites were synthesized at room temperature with low GO to metal salt *** samples were characterized by X-ray diffraction,transmission electron microscopy,Fourier transform infrared spectroscopy,thermal gravimetric analysis,and surface area *** characterization results show that ZIF-8 with a size of approximately 120 nm is successfully decorated on the surface of GO sheets with the host ZIF-8 framework maintained in the synthesized composite,but there is a significant reduction in the Brunauer-Emmett-Teller surface *** antibacterial activities of the samples against Escherichia coli ATCC 11229 and Staphylococcus aureus ATCC 6538 as model strains of gram-negative and-positive bacteria,respectively,were determined by disc diffusion and minimum inhibitory concentration(MIC)***-1.0(1 wt%of ratio of GO to metal salt)shows the highest antibacterial activity with MIC values required to inhibit bacterial growth of *** and *** of 5 times lower than those of pristine *** antibacterial mechanisms are proposed based on field-emission scanning electron microscope images of the two bacteria after contact with the synthesized ***,owing to the simple synthesis,good stability,low chemical usage,and excellent antibacterial activity of the ZGO composites,they show great potential for application in the field of microbial contamination control.

关键词： Graphene oxide Metal-organic framework Hybrid nanocomposite Zeolitic imidazolate framework Antibacterial agent