Miracle-dz/UniFAR-FTUs huggingface dataset:
The optimization of snubbers for IGCT-based voltage source inverters

In recent years, IGCTs have been equipped widely in many voltage source inverters (VSI) for industry applications. The snubber optimal design is important part for IGCT-based VSI. Based on the reasonable modeling of IGCT switching-on and -off responses, the snubber size is optimized for minimum total energy losses with respect to the recovery efficiency of the regenerative snubber in this paper. Two constrained conditions, which are the limits of di/dt and dv/dt and the minimal on- and off-time, are considered in the analysis and optimization. The optimized results for the IGCT of 5SHX08F4502 are obtained.
DECISION SUPPORT SYSTEMS FOR DOMESTIC RETROFIT PROVISION USING SMART HOME DATA STREAMS

The scope of this paper is a study of the potential of decision support systems for retrofit provision in domestic buildings, using monitoring technologies and performance-based analysis. The key research question is: in the age of proliferation of cheap, mobile and networked sensing equipment, how can measured energy and performance data from multiple in-home sensors be utilised to accelerate building retrofit measures and energy demand reduction? Over the coming decade there will be a significant increase in the amount of measured data available from households, from national Smart Meter rollouts to personal Smart Home systems, which will provide unparalleled insights into how our homes are performing and how households are behaving. The new data streams from Smart Homes will challenge the prevailing research and policy initiatives for understanding and promoting energy-saving building retrofits. This work is part of a £1.5m UK Research Council funded project ‘REFIT: Personalised Retrofit Decision Support Tools for UK Homes using Smart Home Technology’ (www.refitsmarthomes.org). Three methods are combined to give multiple perspectives of the research challenge: 1) A literature review on Smart Homes with a focus on academic progress to date in this area; 2) Results from actual Smart Home monitored data streams, as measured in an on-going study of UK-based Smart Homes; and 3) a discussion of performance-based analysis leading to insights in decision support system provision for Smart Building owners. The approach outlined in this work will be of significant interest to national governments when promoting Smart Meter roll-outs, to energy companies in promoting new services using Smart Home data and to the academic community in providing a foundation for future studies to meet the domestic building retrofit challenge.
New Building Scheme to Resist Progressive Collapse

AbstractIn this paper, a new scheme is proposed for retrofitting RC buildings to resist progressive collapse that may result from a first floor column failure. The proposed scheme is comprised of placing vertical cables connected at the ends of beams and hung on a hat steel braced frame seated on top of the building. In case of a column collapse, the cables transfer the residual loads above the failed column to the hat-braced frame, which, in turn, redistributes these loads to the adjacent columns. A finite-element modeling and a nonlinear dynamic analysis following the alternate path method (APM), as recommended by U.S. General Services Administration guidelines, are used to assess the viability of the proposed scheme. A 10-story RC building designed according to Australian Standard AS 3600 was adopted in the investigations. The investigation results demonstrate the possibility of preventing the progressive collapse of RC buildings by implementing the proposed scheme.
Statistical Quality Control for DNA Microarray Data: A Model of Type I Error

ABSTRACT Genetics and biotechnology have created interesting opportunities for statistical quality control research into DNA microarray data. We describe here a study of gene expression data subjected to control charts for individual measurements and Hotelling T 2 control charts, where observed errors are modeled as a function of chart and varied decision rules applied to reject the hypothesis of control. Results suggest that while a good metamodel of Type I error exists, microarray image processing and normalization to remove systematic variation would seem inefficient. And additional work is necessary to develop more useful quality technology for DNA microarrays.
A study on the impact of environmental management system (EMS) certification towards firms' performance in Malaysia

Purpose – To investigate the impact of EMS certification on the performance of firms, including economic and environmental aspects and perceived customer satisfaction.Design/methodology/approach – The purpose of this study is hypotheses testing in order to explain the variance in the dependent variable (firms' performance in terms of economic and environmental aspects) by establishing the nature of the relationship between the dependent variable and the independent variables through the testing of the hypotheses.Findings – The results reveal that certification impacts positively on both the environmental and economic performance of enterprises. Respondents perceived “enhanced corporate image” to be the strongest impact of certification, and they believe that the benefits obtained from EMS certification far outweigh the cost of its implementation.Research limitations/implications – The study only surveyed ISO 14001‐certified firms. Future research should include non‐certified firms.Practical implications –.
Integrated Solid Waste Management: Engineering Principles and Management Issues

I Perspectives 1 Evolution of Solid Waste Management 2 Legislative Trends and Impacts II Sources, Composition, and Properties of Solid Waste 3 Sources, Types, and Composition of Municipal Solid Waste 4 Physical, Chemical, and Biological Properties of Municipal Solid Waste 5 Sources, Types and Properties of Hazardous Wastes Found In Municipal Solid Waste III Engineering Principles 6 Generation of Solid Wastes 7 Waste Handling and Separation, Storage, and Processing at the Source 8 Collection of Solid Wastes 9 Separation and Processing and Transformation of Waste Materials 10 Transfer and Transport 11 Disposal and Solid Wastes and Residual Matter IV Separation, Transformation, and Recycling of Waste Materials 12 Materials Separation and Processing Technologies 13 Thermal Conversion Technologies 14 Biological and Chemical Conversion Technologies 15 Recycling of Materials Found in Municipal Solid Waste V Closure, Restoration, and Rehabilitation of Landfills 16 Remedial Actions for Abandoned Waste Disposal Sites VI Solid Waste Management and Planning Issues 17 Meeting Federal and State Mandated Diversion Goals 18 Implementation of Solid Waste Management Options 19 Planning, Siting, and Permitting of Waste Management Facilities Appendixes
The life cycle of subcontinental peridotites: From rifted continental margins to mountains via subduction processes

Serpentinization greatly affects the physical and chemical properties of lithospheric mantle. Here we address the fate of serpentinized peridotites and their influence over an entire Wilson cycle. We document the near-surface journey of serpentinized subcontinental peridotites exhumed during rifting and continental breakup, reactivated as buoyant material during subduction, and ultimately emplaced as “ophiolite-like” fragments within orogenic belts. This life cycle is particularly well documented in former Tethys margins, where recent studies describe the ongoing incorporation of Mesozoic serpentinized subcontinental peridotites that diapirically rise from a subducting lower plate’s mantle to be emplaced into the accretionary prism in front of a continental arc. This newly recognized mode of subduction-linked serpentine diapirism from the downgoing lithospheric slab is consistent with the origin of some exhumed serpentinized subcontinental peridotites in the Apennines (Italy), these assemblages reaching their present locations during Alpine orogenesis. Transfer of serpentinized subcontinental peridotites from the downgoing to the overriding plate motivates the concept of a potentially “leaky” subduction channel. Weak serpentine bodies may in fact rise into, preferentially migrate within, and eventually leave the intraplate shear zone, leading to strong lateral heterogeneities in its composition and mechanical strength.
On the properties of frequency transformations for variable cutoff linear phase digital filters

In a recent paper by Oppenheim, Mecklenbrauker, and Mersereau [1] a class of variable cutoff linear phase digital filters has been proposed. The implementation of this class of filters is achieved by replacing a subnetwork in a prototype network such that it performs a frequency mapping of the prototype filter response. By varying a small number of coefficients in the subnetwork the frequency transformation can be varied. In this letter we examine the characteristics of this transformation in greater detail and discuss the range of parameters over which it can be useful.
Development of a Self-Power Peak Expiratory Flow Meter

For a regular Digital Peak Respiratory Flow Metter, a strain gauge or similar probe is used to detect the strength of the blowing. The signal is then be analyzed by computer. In this innovative Self-Power Peek Respiratory Flow Meter, however, a generator is used. The generator is “one stone for two birds”: it serves as the digital signal generator to present the air flow data; it also provides the energy source to re-power the batteries. This allows people to use the equipment whenever and anywhere without worry of recharge or change batteries. Another advantage of the machine is its reliability. The blowing chamber is separated from the generator by magnetic (shaft-less) coupling, therefore, the moisture from blowing has no way to corrode the electric circuit or contaminate the instrument. Because of this innovative instrument is “Green”, “Digital” and easy of use, the application would be expanded. The Coreless Permanent Magnet Disk Generator technology (AFPM) is utilized to eliminate the cogging torque. Moreover, energy saving circuit design also implemented to make the self-power instrument a reality.
Managing and Assessing Student Enterprise Projects

Discusses the problems associated with the successful organization of business start‐up projects at undergraduate level, including teamwork, the involvement of mentors and assessment methods. Student business projects also involve the development of a highly demanding set of skills. The weaknesses of student projects are identified principally with respect to financial projections and marketing strategy. Concludes that these projects are a valuable means of reinforcing theoretical business studies principles and foster more realistic and mature expectations of enterprise.
ANALISIS PENERIMAAN MAHASISWA TERHADAP SISTEM INFORMASI AKADEMIK BERBASIS WEB DI UNIVERSITAS BRAWIJAYA DENGAN MENGGUNAKAN TECHNOLOGY ACCEPTANCE MODEL (TAM)

Penelitian ini bertujuan untuk menganalisis perilaku penerimaan mahasiswa terhadap pemanfaatan sistem informasi akademik berbasis web di Universitas Brawijaya. Sampel yang digunakan di dalam penelitian ini adalah sebanyak 450 mahasiswa dari berbagai fakultas yang terdapat pada Universitas Brawijaya. Jenis data yang dikumpulkan merupakan data primer yang diperoleh dengan cara menyebar kuisioner. Pengujian hipotesis dilakukan dengan menggunakan model TAM serta diuji melalui pendekatan Structural Equation Modeling (SEM). Hasil penelitian menunjukkan bahwa Kemudahan Penggunaan Persepsian berpengaruh positif terhadap Kegunaan Persepsian dan Sikap Terhadap Perilaku. Kegunaan Persepsian juga berpengaruh positif terhadap Sikap Terhadap Perilaku. Sikap Terhadap Perilaku berpengaruh positif terhadap Niat Perilaku. Niat Perilaku berpengaruh positif terhadap Penggunaan Nyata Sistem. Hasil penelitian juga menunjukkan bahwa Kegunaan Persepsian tidak berpengaruh terhadap Niat Perilaku. Kata Kunci: sistem informasi akademik, TAM, SEM, Kemudahan Penggunaan Persepsian, Kegunaan Persepsian,Sikap Terhadap Perilaku, Niat Perilaku, Penggunaan Nyata Sistem .
Sex differences in heritable and environmental risk of abdominal obesity: family-based study and case-control study of rural adults in China

Background: Abdominal obesity (AO) has shown a dramatic increase trend in the past decades. But there were few studies on sex differences in the risk of AO, especially the heritable risk. This study aimed to investigate the sex differences of AO risk in China rural areas.Methods: A family-based study coupled with the Henan Rural Cohort was carried out, including 1,533 people and 39,259 people, respectively. Questionnaires were applied in including included demographics, dietary intake and physical activity. Combined family-based study with the Henan Rural Cohort, sex differences in heritable risk of AO was analyzed among rural people. Chi-square test was applied to study the heritable risk of AO. Environmental factors for AO were assessed in couple case-control study. Logistic regression analysis was carried out to assess the association of lifestyles with AO.Results: Women had higher risk to develop AO than men in Henan Rural Cohort (OR: 3.070, 95% CI: 2.943, 3.203, P<0.001). The female first-degree relatives were more susceptible to AO than those in the Henan Rural Cohort (OR: 1.854, 95% CI: 1.318, 2.608, P<0.001). Moreover, female offspring had higher risk to develop AO than male offspring when their mothers suffered from AO (OR: 1.797, 95% CI: 1.111, 2.907, P=0.016), and this risk increased if their grandmothers suffered from AO (OR: 6.750, 95% CI: 1.667, 27.336, P=0.007). In addition, low physical activity increased the risk to develop AO for women when compared with their husbands (OR: 2.253, 95% CI: 1.283, 3.957, P=0.005). Conclusion: This study indicated females are heritably susceptible to AO than men, especially for those who have maternal family history and reinforce the benefits of increasing physical activity for protecting females from suffering from AO. Proactive action based on maternal family history is a cost-effective strategy for the prevention of AO, although larger family-based studies are required to verify the conclusion.
Determinants of Diffusion and Downstreaming of Technology-Intensive Products in International Trade

This paper presents and analyzes patterns of trade for a broad category of technology-intensive products, including ATP (advanced technology products), for a group of 15 economies in Asia, Europe, and the United States. Using export data from 1997-2006, we examine the rate of diffusion (distribution of exports over a wider group of economies) and downstreaming (shifting of exports to lower-income economies), by means of index numbers. We find that the degree of downstreaming is highly sector-specific and product-specific; e.g. there has been more downstreaming of electronics than chemicals, of consumer electronics than electronic components, and of certain basic chemicals than specialized products such as photographic film and cosmetics. The exports of many products not normally considered to be ATP continue to be concentrated in high-income economies. We discuss the roles of technology, national and sectoral innovation systems, government policies, and other factors in shaping the degree of diffusion and downstreaming.
Dual-band Circularly Polarized Aperture Coupled Annular-ring Microstrip Antenna for GNSS Applications

Abstract In this paper, a dual-band circularly polarized stacked annular-ring microstrip antenna which covers the bands of Galileo (E5a, E5b, E1, E2, L1), GPS (L1, L2, L5) and GLONASS (L1, L2, L3) is presented. The antenna is composed of two concentric annular-ring patches that are etched on a substrate to generate a dual-band response. Four H-shaped apertures are added to improve the coupling between the microstrip lines and rings. And a wide-band feeding network is used to broaden the axial-ratio bandwidth. Good agreement is achieved between the simulation and measurement, which shows that the return loss of the proposed antenna is less than −15 dB in the whole band and the 3-dB axial-ratio (AR) bandwidths for the lower and upper band are 12.5% and 20.8% respectively. The measured results confirm the validity of the designed antenna which is suitable for Global Navigation Satellite System.
Process monitoring using automatic physical measurement based on electrical and physical variability analysis

Abstract. A fully automated silicon-based methodology for systematic analysis of electrical features is shown. The system was developed for process monitoring and electrical variability reduction. A mapping step was created by dedicated structures such as static-random-access-memory (SRAM) array or standard cell library, or by using a simple design rule checking run-set. The resulting database was then used as an input for choosing locations for critical dimension scanning electron microscope images and for specific layout parameter extraction then was input to SPICE compact modeling simulation. Based on the experimental data, we identified two items that must be checked and monitored using the method described here: transistor’s sensitivity to the distance between the poly end cap and edge of active area (AA) due to AA rounding, and SRAM leakage due to a too close N-well to P-well. Based on this example, for process monitoring and variability analyses, we extensively used this method to analyze transistor gates having different shapes. In addition, analysis for a large area of high density standard cell library was done. Another set of monitoring focused on a high density SRAM array is also presented. These examples provided information on the poly and AA layers, using transistor parameters such as leakage current and drive current. We successfully define “robust” and “less-robust” transistor configurations included in the library and identified unsymmetrical transistors in the SRAM bit-cells. These data were compared to data extracted from the same devices at the end of the line. Another set of analyses was done to samples after Cu M1 etch. Process monitoring information on M1 enclosed contact was extracted based on contact resistance as a feedback. Guidelines for the optimal M1 space for different layout configurations were also extracted. All these data showed the successful in-field implementation of our methodology as a useful process monitoring method.
Sample-and-hold circuit with dynamic switch leakage compensation

For sample-and-hold (S/H) circuits operating at low sampling rate and high temperature, the switch leakage current is one of the major error sources. A S/H circuit with dynamic switch leakage compensation is presented. The proposed leakage current compensation circuit generates switch leakage replicas that track the actual leakages in the sampling switches. A bidirectional current steering circuit allows the switch leakage to be dynamically compensated with the leakage replicas. A prototype S/H circuit is fabricated in a 1 μm silicon-on-isolation CMOS technology. Measurement has shown the effectiveness of dynamic leakage current compensation up to 280°C with a maximum 75% leakage reduction.
Optimization for Limited Resource Schedule in Public Construction Project

The optimization of scheduling is an important aspect of the construction project plan, the paper proposes applying improved ant colony optimization to solve the public construction projects scheduling optimization problem under limited resource condition and constructs the mathematical model of the project construction schedule optimization. Further verify the validity of the model and the improved ant colony optimization on the schedule of the optimization problem solving has universal applicability.
ANALISA KEKUATAN KONSTRUKSI CAR DECK PADA KAPAL “KAPAL ROPAX 5000GT”DENGAN METODE ELEMEN HINGGA

Kapal merupakan sebuah sistem rekayasa bergerak buatan manusia yang terbesar. Kompleksitasnya sebagian besar disebabkan oleh tuntutan self – supporting capability di lingkungan laut yang tidak readily habitable . Salah satu subsistem penyusun sistem rekayasa tersebut adalah konstruksinya. Dalam sebuah sistem konstruksi, kekuatan merupakan struktur terpenting dalam sebuah kapal sebab fungsinya adalah untuk menjamin keselamatan daripada awak kapal, penumpang, dan muatannya. Kapal ROPAX 5000GT adalah type Ro – RoPassanger Ship milik DEREKTORAT PERHUBUNGAN DARAT yang beroperasi di Selat Sunda dengan rute pelayaran Pelabuhan Merak – Bakauheni. Dalam rute pelayaran tersebut yang ditempuh dalam waktu kurang lebih dua setengah jam, hal ini mengharuskan kondisi kapal selalu dalam kondisi aman terutama dalam hal konstruksinya sebab dalam perencanaan sebuah konstruksi kapal, pada dasarnya adalah merencanakan konstruksi yang mempunyai tingkat tegangan pada batas yang diijinkan dan bisa diterima oleh konstruksi tersebut. Penelitian tentang konstruksi kekuatan car deck kapal . Kapal ROPAX 5000GT perlu diperhatikan dan dilakukan, dimana tegangan yang diakibatkan oleh beban yang mengenainya tidak boleh melebihi batas maksimum σyield bahan dan σijin berdasarkan rules dari kelas, adapun acuan rules yang dipakai dalam penelitian ini adalah berdasarkan rules Biro Klasifikasi Indonesia. Pada Tugas Akhir ini akan dilakukan analisa local stress yang terjadi pada car deck kapal . Kapal ROPAX 5000GT dengan bantuan program numerik Ansys . Analisa yang digunakan adalah analisa beban statis untuk mengetahui karakteristik dan letak tegangan terbesar dari struktur konstruksi car deck berdasarkan tiga variasi kondisi keadaan kapal menggunakan metode elemen hingga. Hasil analisa menggunakan program numerik Ansys didapatkan hasil maximum stress pada sistem konstruksi car deck geladak kendaraan 2 sebesar 225,39 N/mm2 di lokasi node 8087 pada saat kondisi sagging. Kondisi ini masih tetap aman karena nilai tegangan maksimum yang terjadi masih dibawah σyield dan σijin berdasarkan rules BKI, serta memilki faktor keamanan 1,03
Greywater Sources, Characteristics, Utilization and Management Guidelines: a review

Greywater is defined as a domestic wastewater that is uncontaminated by direct contact with human excreta. Sources of grey water include kitchen sinks, showers, baths, washing machines and dishwashers. Most greywater streams produce effluents high in dissolved contaminants and low in turbidity and suspended solids. As global water resource supplies are worsening and water shortages will affect 2.7 billion people by 2025, resulting in poverty and famine. Reusing greywater is a good way to solve this water shortage problem. As greywater contains fewer pathogens than domestic wastewater (black water), it is safer to handle, easier to treat and reuse onsite for toilet flushing and landscape or for crop irrigation and other non-potable uses. Greywater use in gardens or toilet systems helps to achieve some of the goals of ecologically sustainable development including: (a) reduced freshwater extraction from rivers and aquifers, (b) less impact from septic tank and treatment plant infrastructure, (c) reduced energy use and chemical pollution from treatment plants, (d) groundwater recharge and (e) reclamation of nutrients. However, the biological oxygen demand (BOD), surfactants, oil and grease, detergent residues (nitrogen, phosphorous, sulfate, ammonium, sodium, and chloride) must be considered when handling greywater streams. Several countries have developed guidelines for the reuse of treated greywater to flush toilets and irrigation systems for ornamental garden and lawn watering, depending on the type of grey water and treatment level. Many developed and developing countries have established regulations and guidelines for greywater treatment and reuse. However, some countries have strict rules compared to others. Egypt appears to be a world leader in the treatment and reuse of wastewater and has several laws in place for treatment options and selection of crops to be irrigated with treated wastewater. Given the water shortage in Egypt and the growing population, the government of Egypt imparked on several mega projects of 4-level wastewater treatment throughout the country for use in agricultural production.