Load modelling and simulation of industrial and residential load for harmonic analysis

Power Quality (PQ) is a phrase normally uses to describe all aspects of events in electrical system that deviates from normal system operations. Issues regarding PQ are growing concern especially towards power utilities. The increasing numbers of sophisticated electronics equipment like high efficiency variable speed drive (VSD) and power electronic appliances in the market producing harmonics current to the network system. Harmonics current can be transmitted from one facility through the others utilities equipment to neighbouring businesses through shared networks system. Harmonics current can cause harmful effects at the main equipment on network system and will cause problems such as overheated transformers, conductors, neutral wires, nuisance breaker trips, and voltage distortion all leading to equipment malfunction or fail which translates to loss of money to power utilities and consumers. The objective of this thesis model the nonlinear based on actual load to determine the level of harmonics produce by nonlinear loads. Other than that, objective of this thesis to investigate the current harmonics produce by residential and industrial load. The loads are connected to network system based on IEEE-13 bus distribution and small scale system to determine the current harmonics characteristic in network system for residential and industrial building.The main objective of this thesis to apply the mitigation technique to reduce current harmonics by using active and passive filter. Active filter will be using STATCOM as mitigation technique. The data will be tabulate for comparison and analysis. The results current harmonic level in network system will be reduce due to mitigation techniques apply in the system

Decision theory in sustainable supply chain management: a literature review

Purpose – This study aims to aid theory building, the use of decision theory (DT) concepts in sustainable supply chain management (SSCM) research is examined. Design/methodology/approach – An abductive approach considers two DT concepts, Snowden’s Cynefin framework for sense-making and Keeney’s value-focussed decision analysis, in a systematic literature review of 160 peer-reviewed papers in English. Findings – Around 60 per cent of the papers on decision-making in SSCM come from operational research (OR), which makes explicit use of DT. These are almost all normative and rationalist and focussed on structured decision contexts. Some exceptions seek to address unstructured decision contexts via Complex Adaptive Systems or Soft Systems Methodology. Meanwhile, a second set, around 16 per cent, comes from business ethics and are empirical, behavioural decision research. Although this set does not explicitly refer to DT, the empirical evidence here supports Keeney’s value-focussed analysis. Research limitations/implications – There is potential for theory building in SSCM using DT, but the research only addresses SSCM research (including corporate responsibility and ethics) and not DT in SCM or wider sustainable development research. Practical implications – Use of particular decision analysis methods for SSCM may be improved by better understanding different decision contexts. Social implications – The research shows potential synthesis with ethical DT absent from DT and SCM research. Originality/value – Empirical behavioural decision analysis for SSCM is considered alongside normative, rational analysis for the first time. Value-focussed DT appears useful for unstructured decision contexts found in SSCM. Originality/value – Empirical, behavioural decision analysis for SSCM is considered alongside normative rational analysis for the first time. Value-focussed DT appears useful for unstructured decision contexts found in SSCM

Kesan kaedah semaian ke atas prestasi tumbesaran anak benih padi di sawah

Kajian ini telah dijalankan bagi melihat kesan kaedah semaian keatas prestasi tumbesaran anak benih padi di sawah. Matlamat kajian ini adalah untuk melihat prestasi tumbesaran anak benih padi di mana akar anak benih tidak diganggu ke atas prestasi tumbesaran anak benih padi di sawah. Selain itu, kaedah pengairan selang seli basah dan kering dijadikan sebagai kaedah pengairan di kawasan kajian bagi melihat kesan keatas pertumbuhan pokok padi. Kajian ini telah dijalankan di plot kawasan sawah padi yang bertempat di Fakulti Pertanian Lestari (FPL), Universiti Malaysia Sabah cawangan Sandakan. Kajian ini mengambil masa selama 4 bulan dengan menggunakan reka bentuk eksperimen 'Completely Randomized Design' (CRD). Kajian telah dijalankan di kawasan sawah padi tanpa mengawal persekitaran dan 4 jenis rawatan telah dijalankan iaitu penggunaan 4 jenis dulang pra-cambah dengan 4 replikasi bagi setiap rawatan. Parameter yang diukur ialah tinggi pokok, bilangan anakan padi, bilangan daun, tempoh masa sebelum berbunga dan bilangan tangkai padi (Panicle). Rawatan dulang semaian pra-cambah cetek menunjukkan prestasi tumbesaran terbaik dari segi bilangan anakan padi di kawasan sawah di samping tempoh sebelum berbunga adalah lebih awal daripada rawatan dulang semaian yang biasa. Rawatan dulang semaian pra-cambah cetek menunjukkan keputusan yang baik dari segi prestasi tumbesaran pokok padi disebabkan penggunaan anak benih semaian tunggal di samping akar anak benih tidak rosak semasa proses pemindahan dilakukan. Jangkamasa sebelum pokok berbunga juga lebih awal daripada rawatan dulang semaian biasa disebabkan akar anak benih tidak rosak semasa proses pemindahan dan menyebabkan pokok padi tidak mengambil masa yang lama untuk berbunga. Penggunaan kaedah pengairan selang seli basah dan kering sebagai salah satu kaedah pengairan di dalam kajian ini tidak menunjukkan kesan ke atas tumbesaran pokok padi. Penggunaan anak benih semaian tunggal di sawah padi amat digalakkan untuk para petani kerana prestasi tumbesaran yang baik dan mampu meningkatkan hasil pengeluaran padi disamping membantu para petani mengurangkan penggunaan biji benih padi untuk penanaman padi. Para petani juga boleh menggunakan pengairan selang seli basah dan kering sebagai salah satu kaedah pengairan di kawasan sawah bagi menjimatkan penggunaan air tanpa memberikan kesan sampingan keatas prestasi tumbesaran pokok padi di sawah

What Determines Sukuk Market Development? New Theoretical Insights

In recent past, the Asian economies faced various financial crises, 1997 & 2008, because of underdeveloped or small capital markets. Most of the countries continued to heavily depend on the mere banking system for sovereign and corporate financing needs which made the region repeatedly vulnerable to the crises state. Therefore, the last decade has witnessed the remarkable growth in the alternative arrangement in the form sukuk and bond markets. The academic literature on the topic mainly focuses on bond market ignoring largely the determinants of sukuk market. Using content analysis approach, this conceptual study proposes the theoretical relationships of sukuk with some new possible determining factors along with some other factors which have not received enough attention in the literature. The study focuses on the dynamics of foreign capital inflows, macroeconomic and financial variables with respect to sukuk market development

Numerical Modelling of Tunnel-Ground Interaction with Building Existence

Tunnel is complex and risky construction. When excavation of tunnel take place, the original ground equilibrium will affected thus lead to the stress redistribution and ground movement. Tunnel construction in the urban city is in concerned as tunnel will passes under a lot of existing building. Therefore, in this study, a series of simulation of tunnel construction with and without external building was conducted. Numerical model by means ABAQUS Software was conducted based on tunnel-soil-load model was developed. From the result, it can be concluded that soil stress redistributed when excavation of soil occurs especially near to the tunnel periphery. The ground settlement trough depicts a significant maximum settlement for the model with high external load and producing flat u-shape in the middle of settlement trough pattern

Celebrities and medical awareness—The case of celine dion and stiff-person syndrome

The positive role of celebrities in spreading important medical information and contributing to increasing public awareness regarding the diagnosis, treatment, and prevention of various medical conditions cannot be overemphasized. Interestingly and importantly at the same time, this impact is not related to the rarity of the disease, as very rare diseases are looked up by the public due to the fact that a celebrity suffers from this disorder. Therefore, if taken seriously and used to address the public in regard to critical medical conditions, such as screening for cancer or the importance of vaccines in fighting infections, celebrities could have a huge impact in this field. As previously shown in the medical literature, the recent announcement of the famous Canadian singer Celine Dion concerning her newly diagnosed stiff-person syndrome has influenced the public interest regarding the syndrome which manifested as an increased search volume related to the disorder as seen in Google Trends. In brief, in this short communication we aimed to address the phenomenon of celebrities’ impact on public apprehension, revise the syndrome for the medical community, and emphasize taking advantage of such involvement of celebrities for improving the spread of highly important medical information for the public

Physical Properties and Glycemic Index Studies of Singaraja White Rice Grown by Conventional and Organic Methods in Denpasar Bali Indonesia

Both Singaraja white rice  grown by organic and conventional method showed similar quality and  posses glycemic index of 46.8±4.03 and 48.2±4.65 respectively. These values are lesser than the commercial Basmati rice of 50±5.8 which is in the low GI category. The scanning electron macroscopy photomicrograph of the transversal section of both  rices show the array of crystalline blocks from the central endosperm area toward the outer part. The blocks are surrounded by polyhedral crystallites of the size between 3-6 microns. The polyhedral crystalline seem to be more dominant in the conventional rice. X-ray difrractograms of the rice indicate about 24% crystallinity with amylose dihydrate exist as polymorph in the organic rice. Elemental analysis data by XRF indicate organic rice contains slightly higher Magnesium and Phosphorus. Other elements detected were K, Al, S, Cl,O, Si, Zn, Ru, Ni, Pd and Fe. However, no iron was detected in the conventional rice . On the other hand no calcium was detected in the organic  rice. Thermogravimetric study showed the solid rice is stable up to about 200°C with the loss of water molecules at about 90°C.

Resurgence of regional coalitions in Sarawak and Sabah since the federal elections of 2018 and 2022

This article examines the resurgence of regional coalitions in Sarawak and Sabah following the 14th and 15th General Elections, respectively. It shows how federal-level government changes in Malaysia can result in the realignment of regional parties in Sarawak and Sabah, which had significantly shaped Malaysia’s political landscape as BN’s frontline states. The resurgence of the regional coalitions, Gabungan Parti Sarawak (GPS) and Gabungan Rakyat Sabah (GRS), demonstrates not only the fragmentation of national politics and the rise of regionalism but also the ease with which regional parties dominated by strongmen and aided by patronage can realign, enter and exit coalitions

PROSEDUR PERCERAIAN DI INDONESIA DAN MALAYSIA (Studi Komperatif Undang-Undang No.1 Tahun 1974 Dan Enakmen Undang-Undang Keluarga Islam Negeri Selangor 2003)

Talak merupakan satu hal yang disyariatkan dalam Islam. Islam mengizinkan talak tetapi Allah SWT sangat membenci perceraian. Perceraian merupakan pilihan terakhir bagi pasangan suami isteri ketika memang tiada jalan keluar lainnya bagi mempertahankan rumahtangga yang dibina. Dalam Al-Quran surat Al-Baqarah ayat 229 dinyatakan “talak (yang dapat dirujuk) ada dua kali. Setelah itu boleh rujuk lagi dengan cara yang makruf atau menceraikan dengan cara yang baik”. Di dalam satu sabda Nabi SAW yang diriwayatkan oleh Abu Daud dari Ibnu Umar bahwa Nabi Muhammad SAW bersabda “perkara halal yang paling dibenci Allah ialah menjatuhkan talak”. Bagi memastikan hal berkaitan perceraian ini dilakukan dengan benar Negara telah mengatur undang-undang yang berkaitan dengan perceraian bagi menjaga hak wanita agar tidak sebarangan dijatuhkan talak oleh suami. Di Negara Indonesia ada Undang-Undang No.1 Tahun 1974 Tentang perkahwinan menyebut dalam pasal 39 percraian hanya dapat dilakukan didepan Sidang Pengadilan setelah pengadilan bersangkutan berusaha dan tidak berhasil mendamaikan kedua belah pihak. Manakala di Negara Malaysia pula ada Enakmen Undang-Undang Keluarga Islam Negeri Selangir 2003 disebut dalam seksyen 47 seseorang suami atau seorang isteri yang hendak bercerai hendaklah menyerahkan satu permohonan untuk perceraian kepada Mahkamah dalam borang yang ditetapkan disertai dengan suatu akuan berkanun. Walaupun kedua-dua Negara mempunyai peraturan mengenai perceraian harus dilakukan dihadapan Pengadilan namum masih banyak pasangan yang melakukan perceraian tanpa melalui pengadilan atau tanpa izin pengadilan. Dengan ini menarik penulis untuk mengkaji tentang perlanggaran hukum ini. Adapun permasalahan dalam skripsi ini yaitu apa saja prosedur perceraian yang berlaku di kedua Negara Indonesia dan Malaysia. Apakah status bagi perceraian yang berlaku diluar Pengadilan atau tanpa kebenaran pengadilan. Apakah akibat daripada terjadi hal perceraian di luar pengadilan. Penulisan skripsi ini menggunakan metode kepustakaan. Data-data yang terkumpul bersumber dari data primier yaitu dari buku-buku bacaan yang berkenaan undang-undang bagi kedua-dua Negara dan data sekunder yaitu dari peneliti peroleh dari kasus-kasus yang mempunyai hubungan dengan masalah yang diteliti. Setelah data terkumpul, kemudian dianalisis dengan menggunakan metode komperatif. Hasil dari penelitian ini penulis menyimpulkan bahwa undang-undang yang diguna di Negara Indonesia lebih mudah difahami dan mudah dipratekkan karena perceraian yang dilakukan diluar pengadilan tidak sah menurut hukum Negara. Jika hal ini terjadi akan memberi efek kepada pasangan tersebut untuk melakukan pernikahan selanjutnya. Berbanding Malaysia diamana terdapat seksyen 125 menyatakan perceraian diluar mahkamah dianggap satu kesalahan yang boleh didenda Rm 1000 atau penjara. Tetapi peraturan tersebut masih lagi i kuat untuk menghalang berlakunya perceraian diluar pengadilan karena angka perceraian diluar pengadilan khusus di Malaysia semakin meningkat setiap tahun. Hal ini mungkin disebabkan sanksi yang dikenakan hanya denda RM 1000 bukannya penjara. Masyarakat dikedua Negara seharusnya lebih mematuhi undang-undang yang ditetapkan oleh pemerintah karena di Negara Indonesia perceraian di luar pengadilan dianggap tidak sah makanala di Negara Malaysia perceraian diluar pengadilan dianggap satu kesalahan. Undang-undang yang dibuat oleh kedua Negara ini bukanlah untuk menghalang perceraian tetapi sebagai menjaga keluarga dan menjaga kemaslahatan masyarakat