bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penjadwalan Job Shop pada Empat Mesin Identik dengan Menggunakan Metode Shortest Processing Time dan Genetic Algorithm
Authors: Setiawan Ari , . Susan , Asih Eka Kurnia 
Published: June 2024

PT. DI merupakan suatu perusahaan yang bergerak dalam bidang industri pembuatan komponen pesawat terbang belum dapat mengoptimalkan sumber daya yang dimilikinya karena penjadwalan mesin yang dilakukan belum efisien. Penjadwalan mesin tidak sesuai dengan penjadwalan produksi yang telah ditetapkan dan selalu memprioritaskan pengerjaan part yang memiliki waktu proses yang lebih panjang. Metode penjadwalan mesin yang tepat sangat diperlukan maka pada penelitian ini berfokus pada perbandingan metode penjadwalan yang dapat meminimasi waktu penyelesaian dari sejumlah pekerjaan yaitu metode Shortest Processing Time (SPT) dan Genetic Algorithm (GA). Rata-rata flow time dari metode SPT adalah 251 menit, sementara rata-rata flow time pada generasi terbaik yang dihasilkan dengan menggunakan metode GA yaitu sebesar 264 menit. Hal ini terjadi karena jumlah iterasi dan parameter percobaan pada metode GA yang belum memadai, dimana kemungkinan GA akan memberikan hasil yang lebih baik. PT.DI, as an aircraft industry, has not optimize the resources since they has not implement optimization in production scheduling. It is proposed in this paper, that the Shortest Processing Time (SPT) and Generic Algorithm (GA) are the methods to minimize the mean flow time. The mean flowtime from the SPT methode is 251 minutes, meanwhile GA gives 264 minutes. GA has longer mean flow time, because of the parameter and interation is not suffecient.
Sistem Rekomendasi Mobil Berdasarkan Demographic dan Content-Based Filtering
Authors: Maharani Herastia , Gunawan Ferry Alexander 
Published: June 2024

Memilih mobil yang sesuai dengan kebutuhan bukan merupakan suatu hal yang mudah. Banyaknya alternatif pilihan mobil yang tersedia dengan spesifikasi yang beragam menyebabkan calon pembeli sering merasa kebingungan dalam menentukan pilihan. Masing-masing orang pun bisa memiliki parameter dan prioritas yang berbeda dalam memilih mobil, sehingga tipe mobil yang cocok bagi seorang pembeli belum tentu cocok bagi pembeli yang lain. Penelitian ini mengembangkan sebuah sistem rekomendasi untuk membantu proses pemilihan mobil bagi calon pembeli dengan menggabungkan dua buah metode. Metode demographic filtering digunakan untuk memberikan rekomendasi berdasarkan kemiripan profil antar pembeli. Sedangkan metode content-based filtering digunakan untuk memberikan rekomendasi berdasarkan kemiripan antara kriteria mobil yang diinginkan pembeli dengan spesifikasi mobil yang tersedia. Hasil pengujian menunjukkan bahwa content-based filtering memberikan rekomendasi yang lebih baik dibandingkan dengan demographic filtering. Choosing a car that suits your need is not an easy task. The numbers of alternatives with various spesifications often overwhelm and confuse the costumer when they are trying to buy a car. Each customer possibly has different parameters and priorities in choosing a car, thus a car that fits one person's criteria might not be suitable for others. This study develops a recommendation system that can help the process of choosing a car by combinig two methods. Demographic filtering is used to give recommendation based on the similarity between customer's profiles. Content-based filtering is used to give recommendation based on the similarity between customer's criteria and the specifications of available cars. Based on user evaluation, content-based filtering give better recommendations than demographic filtering.
Keuangan Dan Pembiayaan Bagi Generasi Milenial Dalam Perspektif Ekonomi Syariah
Authors: Neli Amellia  , Annisha Tri Rahayu  , Muhammad Firman Maulana  , Ali Hasfan Soaduon Hasibuan  , Al Hafiz  , Naila Rahmawati  , Sriwati  
Published: June 2024

ABSTRACT
Many consider the millennial generation, or the generation currently in their 20s and 30s, to be the worst at managing finance and financing. As for the purpose in writing this journal to find out the financial and financing activities of the millennial generation, it uses a qualitative descriptive research method with a literature approach. The results of the study describe that one of the strategies that can be applied in finance and financing is to prepare a careful budget, prioritize in spending, investment is certainly based on the principles of transparency, justice, and social responsibility. In financing there are several instruments such as sharia bonds or social investment products and increasing financial literacy.
Abstrak
Banyak yang menilai generasi milenial, atau generasi yang saat ini berusia 20-an dan 30-an, adalah generasi yang paling buruk dalam mengelola keuangan dan pembiayaan. Adapun tujuan dalam penulisan jurnal ini untuk mengetahui aktivitas keuangan dan pembiayaan generasi milenial, maka menggunakan metode penelitian deskriptif kualitatif dengan pendekatan kepustakaan. Hasil penelitian mendeskripsikan bahwa salah satu strategi yang dapat diterapkan dalam keuangan dan pembiayan yaitu menyusun anggaran yang teliti, prioritas dalam pengeluaran, investasi tentu didasari dengan prinsip transparansi, keadilan, dan tanggung jawab sosial. Dalam pembiayaan ada beberapa instrumen seperti obligasi syariah atau produk investasi social serta meningkatkan literasi keuangan.
Universal Electron Injection Dynamics at Nanointerfaces in Dye‐Sensitized Solar Cells
Authors: Wang Lei , Wang Hai‐Yu , Fang Hong‐Hua , Wang Hai , Yang Zhi‐Yong , Gao Bing‐Rong , Chen Qi‐Dai , Han Wei , Sun Hong‐Bo 
Published: April 2012

AbstractInitial nanointerfacial electron transfer dynamics are studied in dye‐sensitized solar cells (DSSCs) in which the free energy and kinetics vary over a broad range. Surprisingly, it is found that the decay profiles, reflecting the electron transfer behavior, show a universal shape despite the different kinds of dye and semiconductor nanocrystalline films, even across different device types. This renews intuitive knowledge about the electron injection process in DSSCs. In order to quantitatively comprehend the universal behavior, a static inhomogeneous electronic coupling model with a Gaussian distribution of local injection energetics is proposed in which only the electron injection rate is a variant. It is confirmed that this model can be extended to CdSe quantum dot‐sensitized films. These unambiguous results indicate exactly the same physical distribution in electron injection process of different sensitization films, providing limited simple and important parameters describing the electron injection process including electronic coupling constant and reorganization energy. The results provide insight into photoconversion physics and the design of optimal metal‐free organic dye‐sensitized photovoltaic devices by molecular engineering.
Enhancement of Thermopower of TAGS‐85 High‐Performance Thermoelectric Material by Doping with the Rare Earth Dy
Authors: Levin E. M. , Bud'ko S. L. , Schmidt‐Rohr K. 
Published: April 2012

AbstractEnhancement of thermopower is achieved by doping the narrow‐band semiconductor Ag6.52Sb6.52Ge36.96Te50(acronym TAGS‐85), one of the bestp‐type thermoelectric materials, with 1 or 2% of the rare earth dysprosium (Dy). Evidence for the incorporation of Dy into the lattice is provided by X‐ray diffraction and increased orientation‐dependent local fields detected by125Te NMR spectroscopy. Since Dy has a stable electronic configuration, the enhancement cannot be attributed to 4f‐electron states formed near the Fermi level. It is likely that the enhancement is due to a small reduction in the carrier concentration, detected by125Te NMR spectroscopy, but mostly due to energy filtering of the carriers by potential barriers formed in the lattice by Dy, which has large both atomic size and localized magnetic moment. The interplay between the thermopower, the electrical resistivity, and the thermal conductivity of TAGS‐85 doped with Dy results in an enhancement of the power factor (PF) and the thermoelectric figure of merit (ZT) at 730 K, fromPF= 28 μW cm−1K−2andZT≤ 1.3 in TAGS‐85 toPF= 35 μW cm−1K−2andZT≥ 1.5 in TAGS‐85 doped with 1 or 2% Dy for Ge. This makes TAGS‐85 doped with Dy a promising material for thermoelectric power generation.
An Electronic Version of Pavlov's Dog
Authors: Ziegler Martin , Soni Rohit , Patelczyk Timo , Ignatov Marina , Bartsch Thorsten , Meuffels Paul , Kohlstedt Hermann 
Published: April 2012

AbstractNeuromorphic plasticity is the basic platform for learning in biological systems and is considered as the unique concept in the brains of vertebrates, which outperform today's most powerful digital computers when it comes to cognitive and recognition tasks. An emerging task in the field of neuromorphic engineering is to mimic neural pathways via elegant technological approaches to close the gap between biological and digital computing. In this respect, functional, memristive devices are considered promising candidates with yet unknown benefit for neuromorphic circuits. It is demonstrated that a single Pt/Ge0.3Se0.7/SiO2/Cu memristive device implemented in an analogue circuitry mimics non‐associative and associative types of learning. For Pavlovian conditioning, different threshold voltages for the memristive device and the comparator are essential. Similarities to neurobiological correlates of learning are discussed in the framework of hebbian learning rule, plasticity, and long‐term potentiation.
Alcohol‐Responsive, Hydrogen‐Bonded, Cholesteric Liquid‐Crystal Networks
Authors: Chang Chin‐Kai , Bastiaansen Cees M. W. , Broer Dirk J. , Kuo Hui‐Lung 
Published: April 2012

AbstractHydrogen‐bridged, cholesteric liquid‐crystal (CLC) polymer networks are adopted as an optical sensor material to distinguish between ethanol and methanol. Fast uptake of the alcohols is facilitated by an incorporated porosity created by breaking the hydrogen bridges and by a previously removed non‐reactive liquid‐crystal agent. The discrimination between the alcohols is based on the diversity in molecular affinity of ethanol and methanol with the hydrogen‐bridged CLC polymer networks. The CLC networks are molecular‐helix‐based, one‐dimensional bandgap materials with a discrete reflection band in the visible part of the spectrum that depends on the pitch of the molecular helix. The changes in positions of the reflection bands of the CLC network accurately discriminate between the alcohol types and provide information on their ratio in case they are blended.
Uptake and Intracellular Fate of Fluorescent‐Magnetic Glyco‐nanoparticles
Authors: Gallo Juan , Genicio Nuria , Penadés Soledad 
Published: April 2012

AbstractIron oxide based nanoparticles are finding their way as leading actors in nanotechnology applications to medicine. Magnetite nanoparticles are currently being used in clinics for the detection of hepatic tumors based on their unspecific accumulation in liver. More and more works are being published on potential applications of magnetic nanoparticles in diagnostics and therapy. But the interaction between magnetic nanoparticles and human cells at the subcellular level is only now beginning to be studied and more basic research is needed in this field. This work studies the interaction between carbohydrate functionalized gold‐coated magnetite nanoparticles and C33 tumoural human cells as the first step towards the in vivo application of these nanoparticles. The uptake of this magnetic material follows a similar trend to that described for other nanoparticles. The intracellular fate of these nanoparticles once internalized has been unveiled, and an automatic methodology for the analysis of co‐localization data has also been tested and compared to a more classic approach. These results can help in the optimization of the design of magnetic nanoparticles depending on their final application.
Studies on the mechanical, thermal, and morphological properties of poly(ether ether ketone)/poly(ether sulfone)/barium titanate nanocomposites: Correlation of experimental results with theoretical predictive models
Authors: Mandal Subhash , Alam Sarfaraz 
Published: April 2012

AbstractIn this study, mechanical, thermal, and morphological properties of the nanocomposites fabricated with the optimized blend of poly(ether ether ketone) (PEEK) and poly(ether sulfone) (PES) incorporated with nanobarium titanate (BT) were investigated. The optimized blend was based on the mechanical and thermal properties of the PEEK and PES in the ratio of 75 : 25 wt %. Nanoparticles were incorporated into the optimized blend with the help of twin‐screw extruder. The concentration of nano‐BT was varied from 2 to 6 wt % (0.41–1.28 vol %). With the increase in the nanosized BT concentrations, the tensile strength, tensile modulus, and elongation at break increased, whereas the crystallinity of the nanocomposites calculated by using differential scanning calorimetry method was found to decrease marginally. Morphological studies were carried out using scanning electron microscopy. The nanocomposites were evaluated by using theoretical predictive models according to “Pukanszky model” applicable to tensile strength and “Takayanagi's model” and “Guth and Smallwood model” applicable to tensile modulus. Upper and lower boundary of Hashin–Shtrikman model as well as Paul's model, applicable to tensile modulus, were also used to compare the experimental data. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Facile prepared bis(carbazyl thiocarbonyl) disulfide as chain transfer agent for RAFT polymerization of methyl methacrylate
Authors: Liu Bin , Deng Liandong , Guo Chungang , Guo Ruiwei , Dong Anjie , Zhang Jianhua 
Published: April 2012

AbstractThe bis(thiocarbonyl) disulfide compounds are key intermediates for the preparation of the high‐performance reversible addition‐fragmentation chain transfer (RAFT) agents with 2‐cyanoprop‐2‐yl or its homologous group as R group. In this article, a synthetic method in water was developed to prepare high‐purity bis(carbazyl thiocarbonyl) disulfide (BCTD) based on a straightforward oxidation reaction using K3[Fe(CN)6] as the oxidant. This method was proved to be a convenient, economical, and eco‐friendly route to synthesize bis(thiocarbonyl) disulfides with high purity and high yield. Subsequently, the RAFT polymerizations of methyl methacrylate (MMA) have been studied by using BCTD and azobis(isobutyronitrile) (AIBN) to in situ generate RAFT agent 2‐cyanoprop‐2‐yl N‐carbazylcarbodithioate (CYCBD). After a very short initial nonliving phase, the polymerization exhibited typical living polymerization characteristics, including that the molecular weights of PMMA linearly increase with monomer conversions and PDI can remain in a relatively low range. The results further indicated that the ratio of BCTD to AIBN and the reaction temperature had a significant impact on the MMA polymerization, and the living features were most prominent when the ratio of BCTD to AIBN is in the range of 1–2 and polymerization temperature at 60°C. In addition, 1H‐NMR analysis and fluorescence spectroscopy of the resultant polymethyl methacrylate (PMMA) confirm the formation of carbazole end‐labeled PMMA chains due to CYCBD generated in situ by the reaction of BCTD with AIBN. This can offer an alternative and complementary route to obtain well‐defined polymers, especially for preparation of polymers with high molecular weight and a relatively low polydispersity. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Microporous network‐assisted formation of copper‐in‐polymer gradient composite film
Authors: Yang Bo , Tang Jianguo , Yang Peihua , Wang Yao , Liu Jixian , Liu Haiyan , Wang Rui , Huang Zhen , Liu Jingquan , Belfiore Laurence A. 
Published: April 2012

AbstractIn this article, a copper‐in‐polymer‐gradient composite film (CPGCF) was synthesized by electrochemical strategy via reducing a solvent‐swollen cathode film (SCF). The latex nanoparticles of a ternary copolymer including styrene, butyl acrylate, and acrylic acid structural units play the key role to form well‐graded copper distribution in this ternary copolymer matrix through the porous morphological structure developed by latex nanoparticle semimelt joining. The morphological structure along cross‐section of CPGCF includes three layers: (1) a dense copper layer in ternary copolymer matrix whose most outside was originally attached to cathode in electrochemical reactor, (2) a shrublike layer that grew from dense copper layer, and (3) a clear layer in which there is no obvious reduced copper phase whose most outside was originally contacted with liquid electrolyte medium in electrochemical reactor. As experimental aspects, the influences of emulsion polymerization conditions of ternary copolymer, predrying time and temperature of SCF, dc voltage in electrochemical reduction on CPGCF structure were investigated. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Endothelial progenitor cells in diabetes mellitus
Authors: Menegazzo Lisa , Albiero Mattia , Avogaro Angelo , Fadini Gian Paolo 
Published: April 2012

AbstractDiabetes mellitus is associated with an increased risk of cardiovascular disease due to its negative impact on the vascular endothelium. The damaged endothelium is repaired by resident cells also through the contribution of a population of circulating cells derived from bone marrow. These cells, termed endothelial progenitor cells (EPCs) are involved in maintaining endothelial homeostasis and contributes to the formation of new blood vessels with a process called postnatal vasculogenesis. The mechanisms whereby these cells allow for protection of the cardiovascular system are still unclear; nevertheless, consistent evidences have shown that impairment and reduction of EPCs are hallmark features of type 1 and type 2 diabetes. Therefore, EPC alterations might have a pathogenic role in diabetic complications, thus becoming a potential therapeutic target. In this review, EPC alterations will be examined in the context of macrovascular and microvascular complications of diabetes, highlighting their roles and functions in the progression of the disease. © 2012 International Union of Biochemistry and Molecular Biology, Inc.
Membrane microdomains in immunity: Glycosphingolipid‐enriched domain‐mediated innate immune responses
Authors: Iwabuchi Kazuhisa , Nakayama Hitoshi , Masuda Hiromi , Kina Katsunari , Ogawa Hideoki , Takamori Kenji 
Published: April 2012

AbstractOver the last 30 years, many studies have indicated that glycosphingolipids (GSLs) expressed on the cell surface may act as binding sites for microorganisms. Based on their physicochemical characteristics, GSLs form membrane microdomains with cholesterol, sphingomyelin, glycosylphosphatidylinositol (GPI)‐anchored proteins, and various signaling molecules, and GSL‐enriched domains have been shown to be involved in these defense responses. Among the GSLs, lactosylceramide (LacCer, CDw17) can bind to various microorganisms. LacCer is expressed at high levels on the plasma membrane of human neutrophils, and forms membrane microdomains associated with the Src family tyrosine kinase Lyn. LacCer‐enriched membrane microdomains mediate superoxide generation, chemotaxis, and non‐opsonic phagocytosis. Therefore, LacCer‐enriched membrane microdomains are thought to function as pattern recognition receptors (PRRs) to recognize pathogen‐associated molecular patterns (PAMPs) expressed on microorganisms. In contrast, several pathogens have developed infection mechanisms using membrane microdomains. In addition, some pathogens have the ability to avoid degradation by escaping from the vacuolar compartment or preventing phagosome maturation, utilizing membrane microdomains, such as LacCer‐enriched domains, of host cells. The detailed molecular mechanisms of these membrane microdomain‐associated host‐pathogen interactions remain to be elucidated. © 2012 International Union of Biochemistry and Molecular Biology, Inc.
Child Protection Peer Review for Paediatricians
Authors: Thomas Amanda , Mott Alison 
Published: April 2012

Key Practitioner Messages

Peer review involves a group of peers engaged in a discussion and providing an opinion on an individual's case that the individual can accept or reject while retaining ultimate responsibility for providing their opinion.
Each health organisation employing paediatricians working in child protection should establish peer review processes in line with the recommendations and standards contained within this document and RCPCH Peer Review in Safeguarding (May 2012).
Evaluation of the predictive power of biplot axes to automate the construction and layout of biplots based on the accuracy of direct readings from common outputs of multivariate analyses: 1. application to principal component analysis
Authors: Rui Alves M. 
Published: April 2012

Predictive biplots, as developed by J.C. Gower and coworkers, can be a very useful tool to aid the interpretation of the outcomes of multivariate analyses. This paper covers a statistical methodology that enables the automation of the construction of predictive biplots, as well as an R function, AutoBiplots.PCA( ), which applies the methodology to principal components analysis. A case study based on the sensory analysis of coffees is used to illustrate the methodology as well as the outputs of the R function.The method relies on the definition of a variable's mean standard predictive error, mspe, as the degree of accuracy in the process of predicting the original values from the biplots, which is compared with a predefined tolerance value (Taxis) to decide if the correspondent biplot axis is drawn in the biplot. Standard predictive errors, spe, are calculated for each unit in relation to each biplot axis in each two‐dimensional plot and are compared with a predefined tolerance value (Tunits) to decide which units shall be faced as outliers. The R function automates the process, enabling the user to decide on the degree of precision of the actual analysis.Besides providing a solution for the automatic production of predictive biplots, the methodology offers new insights for the interpretation of multivariate analyses outputs on the basis of a sound principle, the degree of precision of the analysis. This provides an automatic way for the selection of variables that explain latent dimensions and also helps in deciding on the number of important latent dimensions for model developments. Copyright © 2012 John Wiley & Sons, Ltd.
Synthesis and Theoretical Study of Intramolecular Hydrogen Bond at Two Possible Positions in Pyrazolo[1,2‐b]phthalazine
Authors: Yoosefian M. , Raissi H. , Davamdar E. , Esmaeili A. A. , Azaroon M. 
Published: April 2012

AbstractProperties of dimethyl 3‐(alkylamino)‐5,10‐dioxo‐5,10‐dihydro‐1H‐pyrazolo[1,2‐b]phthalazine‐1,2‐dicarboxylate and its derivatives were studied by means ofab initiomethod. NO2derivative of title compound was synthesized and the nature of its intramolecular hydrogen bond (HB) was investigated. Furthermore, the topological properties of the electron density distributions for NH···O intramolecular bridges were analyzed in terms of the Bader theory of atoms in molecules (AIM). The electron density (ρ) and Laplacian (∇2ρ) properties, estimated by AIM calculations, indicated that O···H bond possesses low ρ and positive ∇2ρvalues which are in agreement with electrostatic character of the HBs, whereas NH bonds have covalent character (∇2ρ<0). Moreover, steric effect of thet‐Bu group on structure and topological parameters of pyrazolo[1,2‐b]phthalazine conformers was studied. Finally, the powerful method of Espinosa was used to obtain the H‐bond energy.