bluuebunny/crossref_metadata_2025_split huggingface dataset:
Arquitetura Moderna antigamente
Authors: Fiori Arantes Otília Beatriz 
Published: January 2023

Os textos aqui reunidos – ensaios, conferências e entrevistas – do final dos anos 80 e início dos anos 90, resumem a posição de acerto de contas de Autora com a surpreendente e mais do que extemporânea apologia da Arquitetura Moderna, por assim dizer no apagar das luzes do projeto iluminista, empreendida originalmente por Jürgen Habermas, e replicada entre nós por arquitetos e teóricos da arquitetura, segundo a qual, liberada de sua sobrecarga funcional, a Nova Construção sobreviveria enquanto matriz do Racionalismo Ocidental. Na contracorrente, a presente coletânea abre com a conferência de 1988, em que Otília procura demonstrar, pela primeira vez (o argumento será desenvolvido mais adiante em livro e outros ensaios), que o envelhecimento do Movimento Moderno e sua correspondente perda de voltagem social é estrutural. O mote central, de que a Arquitetura Moderna teria se esgotado não por desvios ou acidente de percurso, mas na medida mesma da realização de seu programa — ou seja, que não teria sido neutralizada porque os tempos mudaram, mas porque cumpriu o prometido, por estrita fidelidade ao princípio de racionalização progressiva, a mesma racionalização absoluta que define a lógica social da ordem capitalista — é retomado nos textos subsequentes: respondendo às objeções de Roberto Schwarz e, em entrevista concedida a alunos de Arquitetura, ao refutar a dissociação, no argumento de Anatole Kopp, segundo o qual a AM deveria ser compreendida antes de tudo como uma causa e menos como um estilo.
Seguem-se duas conferências que dão continuidade a essa discussão, a primeira, questionando a máxima de Philip Johnson, adotada pelos pós-modernos, de que “amamos a história enquanto os modernos a odiavam”; a segunda, divergindo da tentativa de enquadramento das especificidades da AM brasileira numa espécie de Regionalismo crítico.
Por fim, ilustrando por assim dizer suas teses, Otília analisa a Arquitetura Moderna brasileira, na figura de três dos seus expoentes máximos, Oscar Niemeyer, Lucio Costa e Paulo Mendes da Rocha, mobilizando, e ao mesmo tempo problematizando, o ponto de vista de um crítico, moderno por excelência, Mário Pedrosa, ou o do próprio Lúcio Costa, ao interpretar a “formação” dessa arquitetura. Finalmente, uma digressão, em que questiona a fase dita neomoderna ou “minimalista” de Paulo Mendes da Rocha.

Palavras-chave: Adorno, Anatole Kopp, Arquitetura Moderna, Arquitetura Pós-Moderna, Arquitetura Moderna Brasileira, Brasília, Construtivismo, Corbusier, Habermas, História, Ideologia, Lúcio Costa, Mário Pedrosa, Mies Van der Rohe, Minimalismo, Oscar Niemeyer, Paulo Mendes da Rocha, Regionalismo crítico, Regionalismo pós-crítico, Roberto Schwarz, Theo Van Doesburg.
ARANG AKTIF SERAT SABUT KELAPA DAN APLIKASINYA SEBAGAI ADSORBEN ION KROMIUM(III) DARI LARUTAN AIR
Authors: Manurung Manuntun , Widihati Widihati , Yunilawati I.A.G. 
Published: January 2023

The coconut husk contains high cellulose, so it can be processed as a basic materials to make activated charcoal. The purpose of the study was to make activated charcoal from coconut husk fiber with hydrochloric acid activator and to determine the effect of changing coconut husk fiber into charcoal, as well as activation of the adsorption power of Cr(III) metal ions from solution. The research started by separating the coconut husk fiber, carbonization at various temperatures. The resulting charcoal was characterized according to SNI 06-3730-1995. The best quality charcoal was activated with HCl, then coconut husk fiber, unactivated and activated charcoals were applied to absorb Cr(III) ions. Optimization of adsorption parameters such as contact time, solution pH, temperature and adsorption isotherm were also studied. The results showed that the optimum carbonization temperature was 600oC, contact time was 5 hours, optimum pH was 6, room temperature. The adsorption capacity of Cr(III) ions were 8.2580 mg/g, 13.5645 mg/g and 16.1452 mg/g for coconut husk fiber, unactivated and activated charcoal, respectively. The increase in adsorption power from coconut husk fiber to charcoal was 64.36% and from charcoal to activated charcoal increased by 19.02%. Coconut husk fiber and unactivated charcoal followed the Langmuir isotherm while activated charcoal followed Freundlich.
FORMULASI NANOEKAPSULASI EKSTRAK DAUN KELOR (Moringa oleifera) /KITOSAN-NATRIUM TRIPOLIPOSFAT (NaTPP)
Authors: Purwandari Vivi , Isnaeni Isnaeni , Rahmi Rizka , Akbari Ahmad Zukhruf , Akbari Muhammad Zaim 
Published: January 2023

Moringa (Moringa oliefera) contains several antioxidant compounds such as quercetin and chlorogenic acid. However, antioxidants have weaknesses, namely that they are easily damaged by exposure to oxygen, light, high temperatures, and drying. One way to maintain and increase the stability of antioxidants is by encapsulation. The purpose of this study was to determine the optimum formulation of quercetin nanoencapsulation of moringa leaf extract using chitosan and sodium tripolyphosphate (Na-TPP) using the ultrasonication method. Moringa leaf extract was obtained by repeated ultrasonication 1x 15, 3x15, and 5x15 minutes, frequency 24 kHz, and using alcohol 96%. The encapsulation process was carried out with three variable ratios of the amount of chitosan: Na-TPP added to 10 mL of Moringa leaf extract solution (F0), namely 5:1 (F1), 2:1 (F2), and 1:1 (F3). Test results for flavonoids as quercetin using a UV-Vis spectrophotometer showed that the Quercetin content in Moringa leaf extract ultrasonicated 5x15 minutes was 12.146%, the characterization of the Particle Size Analyzer (PSA) showed encapsulated particle sizes of 170.3 and 209.7 nm with polydisperse index <0 .5, the antioxidant activity test using the DPPH method showed that F0 was 61.4% and F2 had the highest antioxidant activity, namely 81.2%. Analysis of the morphology of nanoparticles using Scanning Electron Microscopy (SEM) showed that the particles were spherically distributed evenly. Nanoencapsulation of Moringa leaf extract has resulted and an increase in the antioxidant activity of Moringa leaf extract after encapsulation using Chitosan-NaTPP, from 61.4% to 81.2% (F2).
Kemampuan Berpikir Kreatif Siswa pada Materi Logaritma
Authors: Sumiati Sumiati , Martila Ruli Redo 
Published: January 2023

Tujuan dari penelitian ini adalah untuk mengetahui kemampuan berpikir kreatif siswa pada materi logaritma dan metode dalam penelitian ini adalah kualitatif deskriptif. Teknik pengambilan data diperoleh dengan tes tulis dan wawancara terhadap siswa kelas X IPA pada salah satu SMA di Kabupaten Bandung dan kemudian dipilih 3 orang siswa berdasarkan jawabannya yang memenuhi kriteria tinggi, sedang, dan rendah untuk melakukan wawancara. Analisis yang digunakan adalah reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitiannya adalah terdapat 3 kriteria kemampuan berpikir kreatif pada siswa, yaitu tingkat kemampuan berpikir kreatif siswa tinggi, tingkat kemampuan berpikir kreatif siswa sedang, dan tingkat kemampuan berpikir kreatif siswa rendah. Untuk siswa yang memiliki tingkat kemampuan berpikir kreatif tinggi cenderung mampu menunjukkan keempat indikator berpikir kreatif. Kemudian untuk siswa yang memiliki tingkat kemampuan berpikir kreatif sedang cenderung mampu menunjukkan tiga dari empat indikator berpikir kreatif. Dan untuk siswa yang memiliki tingkat kemampuan berpikir kreatif rendah hanya mampu menunjukkan satu atau dua dari empat indikator berpikir kreatif. Kemudian hasil penelitian juga menyimpukan bahwa siswa kelas X IPA pada salah satu SMA di Kabupaten Bandung memiliki kemampuan berpikir kreatif yang tergolong sedang.
Analisis Kemampuan Pemecahan Masalah Matematis dan Self-efficacy Siswa Tingkat SMP pada Materi Kubus
Authors: Agustin Fera , Sahrudin Asep , Yunitasari Ika 
Published: January 2023

Penelitian ini bertujuan untuk mengetahui kemampuan pemecahan masalah matematis dan self-efficacy siswa dalam menyelesaikan soal pada materi kubus. Penelitian dilaksanakan dengan menggunakan metode kualitatif, instrumen yang digunakan dalam penelitian ini meliputi: (1) instrumen tes kemampuan pemecahan masalah, soal tes berjumlah 5 butir soal dengan materi kubus; (2) instrumen angket self-efficacy sebanyak 17 butir pernyataan; dan (3) instrumen wawancara. Berdasarkan hasil analisis data diperoleh 2 siswa dengan kategori kemampuan pemecahan masalah tinggi, 2 siswa dengan kategori kemampuan pemecahan masalah sedang, dan 2 siswa dengan kategori kemampuan pemecahan masalah rendah, serta hasil penelitian angket self-efficacy S1 berada pada kategori self-efficacy tinggi dengan skor 64%, S2 berada pada kategori sedang dengan skor 54%, S3 berada pada kategori tinggi dengan skor 66%, S4 berada pada kategori sedang dengan skor 42%, S5 berada pada kategori rendah dengan skor 40% dan S6 berada pada kategori sedang dengan skor 39%.
Problems of engineering systems of water use and scientific research on their solution
Authors: Ю.Л. Сколубович, , О.Г. Примин, , Е.С. Гогина, 
Published: January 2023

Состояние централизованных систем водоснабжения и водоотведения значительного числа городов и поселений России с точки зрения их износа и надежности вызывает тревогу. Проблемы, которые на сегодняшний день существуют в сфере жилищно-коммунального хозяйства, во многом обусловлены недостаточностью ресурсов, имеющихся у субъектов Российской Федерации и органов местного самоуправления, значительным сокращением фундаментальных и прикладных научных работ в этой сфере. Приведена информация о проблемах и возможных вариантах ее решения, о задачах научных исследований, обсуждаемых Научным советом Российской академии архитектуры и строительных наук «Инженерные системы водопользования», в новый состав которого вошли известные ученые – специалисты в области систем водоснабжения и водоотведения. Отмечено, что в последние годы из-за недофинансирования в сфере коммунального хозяйства происходит опережающий износ сооружений водоподготовки и трубопроводов систем водоотведения, подачи и распределения воды. Показано, что инновационные разработки российских ученых используются крайне незначительно. Этому способствовало то, что до настоящего времени организациям жилищно-коммунального хозяйства более выгодно приобретение готовой зарубежной продукции, нежели участие в развитии собственного производства.
The state of public water supply and wastewater disposal systems in a considerable number of cities and towns in Russia in terms of their wear and tear and reliability causes alarm. The problems that exist today in the field of housing and public utilities are largely due to the lack of resources available with the constituent entities of the Russian Federation and local governments, and significant reduction in fundamental and applied scientific work in this area. Information is provided on the problems and possible solutions, on the tasks of scientific research discussed by «Engineering Systems of Water Use», the Scientific Council of the Russian Academy of Architecture and Building Sciences, the new composition of which included well-known scientists – experts in the field of water supply and wastewater disposal systems. It is noted that in recent years, due to underfunding in the field of public utilities, an advanced wear of water treatment facilities and pipelines of wastewater disposal systems, water supply and distribution systems occurs. It is shown that the innovative developments of Russian scientists have been hardly used. This was facilitated by the fact that until now it is more profitable for housing and public utilities companies to purchase finished foreign products than to participate in the development of their own production.
Technology for the treatment and use of mixed domestic and industrial wastewater in the industrial water supply system
Authors: Ю.А. Галкин, , Е.М. Басков, , Е.А. Уласовец, , Д.Н. Обадин, , Д.В. Ермаков, , Е.А. Кнауб, 
Published: January 2023

По техническому заданию предприятия черной металлургии «Научно-проектная фирма «ЭКО-ПРОЕКТ» разработала на основе лабораторных исследований и пилотных испытаний физико-химическую технологию очистки смешанных хозяйственно-бытовых и производственных сточных вод. Технология предусматривает использование стоков в системе производственного водоснабжения предприятия, что исключает их отвод в городскую систему хозяйственно-бытовой канализации. С помощью математического моделирования по методике компании «ЭКО-ПРОЕКТ» разработана оптимальная схема использования полученной воды в системе производственного водоснабжения предприятия. Технико-экономическим обоснованием установлена экологическая и экономическая эффективность реализации данного проекта.
According to the Terms of Reference of the ironworks, ECO-PROJECT R&D Company developed a physicochemical technology for the treatment of mixed domestic and industrial wastewater based on laboratory studies and pilot tests. The technology provides for reusing the effluent in the industrial water supply system of the ironworks, thus eliminating the discharge into the municipal domestic sewer network. With the help of mathematical modeling according to the methodology of ECO-PROJECT Company, an optimal scheme for using the obtained effluent in the industrial water supply system of the enterprise was developed. The feasibility study proved the environmental and economic efficiency of the implementation of this project.
Statistical modeling of V
th distribution in ovonic threshold switches based on physical switching models
Authors: Yokogawa Shinji 
Published: January 2023

Abstract
This paper discusses the statistical modeling of the V
th distribution of an ovonic threshold switch, an integral component of high-speed, high-capacity storage-class memory. A distribution function that explains the V
th variation and a method for estimating and judging it is proposed based on three representative switching mechanisms—thermal runaway model, physically based electrical model, and two-state defect model. We examined the relationship between the segment V
th distribution and V
th minimum distribution is examined by considering chip-level scaling in Monte Carlo simulations and analytical analysis of the distribution function. The latter distribution approaches the Weibull distribution; however, its convergence speed differs.
Influence of substrate impurity concentration on sub-threshold swing of Si n-channel MOSFETs at cryogenic temperatures down to 4 K
Authors: Kang Min-Soo , Sumita Kei , Oka Hiroshi , Mori Takahiro , Toprasertpong Kasidit , Takenaka Mitsuru , Takagi Shinichi 
Published: January 2023

Abstract
The sub-threshold swing (SS) of Si n-MOSFETs is experimentally and systematically evaluated in a temperature range of 4–300 K with varying the substrate impurity concentration (N
sub) from ~1016 to ~1018 cm−3, to obtain a physical understanding of SS at cryogenic temperatures. It is clarified that the temperature and drain current dependencies of SS in n-MOSFETs are well represented by a model composed of mobile tail states and localized interface states, irrespective of N
sub. The densities of these states are found to increase with increasing N
sub. A physical origin of band tail states is studied by experimentally examining the impact of substrate bias on these states, which can separate the effects of the N
sub and the surface electric field. It has been clarified, as a result, that the band tail states can be explained by the impurity-induced model.
A 24 V to 1 V integrated dual-charging path dual-inductor hybrid converter for improved step-up load transient response
Authors: Nishijima Kazuya , Umeki Toma , Miyaji Kousuke 
Published: January 2023

Abstract
This paper proposes a dual-charging-path dual-inductor hybrid converter that can charge two inductors simultaneously to improve the step-up load transient response. The proposed scheme only introduces one additional switch and capacitor to form a dual charging path during step-up load transient response. All power switches are integrated using 5 V transistors with 0.25 μm HV BCD process. Using type-3 PWM control combined with a fast load transient detector, simulation results show that the proposed circuit achieves 55.4% voltage drop and 23.6% recovery time reduction compared to the conventional DIH converter for load transient step from 20 mA to 4 A.
Power device breakdown mechanism and characterization: review and perspective
Authors: Zhang Ruizhe , Zhang Yuhao 
Published: January 2023

Abstract
Breakdown voltage (BV) is arguably one of the most critical parameters for power devices. While avalanche breakdown is prevailing in silicon and silicon carbide devices, it is lacking in many wide bandgap (WBG) and ultra-wide bandgap (UWBG) devices, such as the gallium nitride high electron mobility transistor and existing UWBG devices, due to the deployment of junction-less device structures or the inherent material challenges of forming p-n junctions. This paper starts with a survey of avalanche and non-avalanche breakdown mechanisms in WBG and UWBG devices, followed by the distinction between the static and dynamic BV. Various BV characterization methods, including the static and pulse I–V sweep, unclamped and clamped inductive switching, as well as continuous overvoltage switching, are comparatively introduced. The device physics behind the time- and frequency-dependent BV as well as the enabling device structures for avalanche breakdown are also discussed. The paper concludes by identifying research gaps for understanding the breakdown of WBG and UWBG power devices.
Flexural properties of a MgB2 thin-film wire
Authors: Iwanaka Takumu , Kusunoki Toshiaki , Kotaki Hiroshi , Kodama Motomune , Tanaka Hideki , Matsumoto Akiyoshi , Horii Shigeru , Kawayama Iwao , Doi Toshiya 
Published: January 2023

Abstract
Aiming to understand the bending characteristics of a MgB2 thin-film wire and utilize the wire in the design of superconducting magnets, we examined the degradation of critical current density J
c due to bending. Six short MgB2 thin-film wires with a thickness of 1 μm were prepared under the same deposition conditions. They were bent in different radii, and their J
c were compared. The allowable bending radius at which J
c does not degrade was 25.0 mm. As for MgB2 thin-film wires, thickening the film effectively increases the engineering critical current density J
e. On the basis of material mechanics, the allowable bending radius was estimated to be 25.5 mm when the film thickness increased to 10 μm. The allowable bending radius of the MgB2 thin-film wire is sufficiently smaller than the radius of a typical superconducting coil, so it is not considered to be a barrier to fabricating a coil with the wire.
Estimation of electric field distribution of Hermstein’s glow corona discharge by spectral image processing
Authors: Sasamoto Ryo , Shirouzu Akihiro , Orii Hideaki , Hanai Masahiro , Shinohara Masanori 
Published: January 2023

Abstract
We present a spectral image processing method for estimating the distribution of the reduced electric field E/N for Hermstein’s glow corona discharge. This method analyzes spectral images of the discharge taken by an intensified charge-coupled device camera with ultra-narrow band pass filters at the pixel level. The method requires a shorter measurement time than optical emission spectroscopy and can reveal finer details of the spatial distribution. Experiments showed that the E/N of discharge at the tip of the electrode locally increases with an increase in the applied voltage. In particular, E/N at the tip of the electrode reaches a high value just before breakdown. Based on the maximum acquired values, the breakdown of discharge is estimated to occur when E/N ≥ 270 × 10−21–340 × 10−21 V m2. This study is expected to contribute to monitoring the discharge state of electrical equipment to prevent breakdown and ensure safety.
Evaluation of terpene-based hydrophobic deep eutectic solvents as skin permeation enhancers
Authors: Araki Yuta , Hamada Yuma , Imamura Norika , Yamasaka Koki , Sakuragi Mina 
Published: January 2023

Abstract
We investigated whether carboxylic acid-terpene-based deep eutectic solvents (DESs) can be used as skin permeation enhancers. We performed transdermal experiments, and their results showed that DESs with longer hydrocarbon chains can enhance the skin permeability of hydrophilic fluorescein sodium and hydrophobic meloxicam. Additionally, all DESs could improve the skin permeability of poorly soluble resveratrol. Subsequently, we evaluated the stratum corneum’s structural transition after applying DESs. The results showed that the l-menthol-based DESs with longer hydrocarbon chains disrupt lipid layers more than those with shorter hydrocarbon chains. Thymol-based DES extracted the lipids in the stratum corneum and permeated the corneocytes. Transepidermal water loss measurements showed that l-menthol-based DESs with longer hydrocarbon chains and thymol-based DESs damage skin as they disturb the inner parts of stratum corneum lipids. Overall, we concluded that DESs with longer hydrocarbon chains can be used as skin permeation enhancers for various drugs by reducing skin irritation.
Optimization of the blend ratio of soft functional polymers for high piezoelectric performance stretchable device
Authors: Ito Keita , Sekine Tomohito , Shouji Yoshinori , Wang Yi-Fei , Takeda Yasunori , Kumaki Daisuke , Dos Santos Fabrice Domingues , Tong Huang , Miyabo Atsushi , Tokito Shizuo 
Published: January 2023

Abstract
In recent years, softening a ferroelectric polymer for wearable tactile electronics has been challenging because of its high robustness and crystallinity. In this study, a functional piezoelectric material system was fabricated by optimizing the blend ratio of a copolymer of PMMA-PBA, which is an amorphous polymer, and a ferroelectric polymer P(VDF-TrFE). The stretchable film was able to extend it up to maximum 400%. By fabricating a capacitor-type device combined with a conductive polymer, we demonstrated the possibility of applying it to a stretchable sensor.
Achromatic transmitted acoustic lens arrayed by cascaded Helmholtz resonators
Authors: Lü Cheng , Tang Shuai , Wu Jin-Lei , Pei Yanbo , Jiang Yongyuan 
Published: January 2023

Abstract
By utilizing an array of cascaded Helmholtz resonators (HRs) with high transmittance and linear phase response, a broadband achromatic acoustic lens (AAL) is realized and verified in numerical simulations as well as experimental measurements. The focal length is independent of the incident frequencies from 2000 to 4500 Hz owing to the phase compensation provided by HR arrays. The FWHM of the focal point could remain approximately half of the wavelength within the operating band, showing an excellent performance of the lens. This work enriches the design of AAL, which may have potential applications in biomedical imaging and acoustic detection.