bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ultra-broadband polarization beam splitter with silicon subwavelength-grating waveguides
Authors: Li Chenlei , Zhang Ming , Bowers John E. , Dai Daoxin 
Published: March 2020

An ultra-broadband polarization beam splitter (PBS) with low excess loss (EL) and a high extinction ratio (ER) is proposed and demonstrated for the case with 340 nm thick silicon-on-insulator waveguides. Here the PBS is realized by using cascaded adiabatic dual-core tapers, which consist of a strip core and a subwavelength-grating core. For the designed PBS, which has a 33.6 µm long mode-evolution region, the ELs are

<

0.3

d
B

, and the ERs are

>

20

d
B

for both TE and TM polarizations in an ultra-broad bandwidth of

>

270

n
m

(1400–1670 nm) in theory. For the fabricated PBS, the measured bandwidths for achieving ERs of

∼

20

and

∼

25

d
B

are 240 and 220 nm, while the 1 dB bandwidth is as large as 230 nm, which are the largest bandwidths reported to date, to the best of our knowledge.
Long-wavelength-infrared laser filamentation in solids in the near-single-cycle regime
Authors: Qu Shizhen , Chaudhary Nagar Garima , Li Wenkai , Liu Kun , Zou Xiao , Hon Luen Seck , Dempsey Dennis , Hong Kyung-Han , Jie Wang Qi , Zhang Ying , Shim Bonggu , Liang Houkun 
Published: March 2020

We experimentally demonstrate long-wavelength-infrared (LWIR) femtosecond filamentation in solids. Systematic investigations of supercontinuum (SC) generation and self-compression of the LWIR pulses assisted by laser filamentation are performed in bulk KrS-5 and ZnSe, pumped by

∼

145

f
s

, 9 µm, 10 µJ pulses from an optical parametric chirped-pulse amplifier operating at 10 kHz of repetition rate. Multi-octave SC spectra are demonstrated in both materials. While forming stable single filament, 1.5 cycle LWIR pulses with 4.5 µJ output pulse energy are produced via soliton-like self-compression in a 5 mm thick KrS-5. The experimental results quantitatively agree well with the numerical simulation based on the unidirectional pulse propagation equation. This work shows the experimental feasibility of high-energy, near-single-cycle LWIR light bullet generation in solids.
Micro-architectural analysis of OLAP
Authors: Sirin Utku , Ailamaki Anastasia 
Published: March 2020

Understanding micro-architectural behavior is important for efficiently using hardware resources. Recent work has shown that in-memory online transaction processing (OLTP) systems severely underutilize their core micro-architecture resources [29]. Whereas, online analytical processing (OLAP) workloads exhibit a completely different computing pattern. OLAP workloads are read-only, bandwidth-intensive, and include various data access patterns. With the rise of column-stores, they run on high-performance engines that are tightly optimized for modern hardware. Consequently, micro-architectural behavior of modern OLAP systems remains unclear.
This work presents a micro-architectural analysis of a set of OLAP systems. The results show that traditional commercial OLAP systems suffer from their long instruction footprint, which results in high response times. High-performance columnstores execute tight instruction streams; however, they spend 25 to 82% of their CPU cycles on stalls both for sequential- and random-access-heavy workloads. Concurrent query execution can improve the utilization, but it creates interference in the shared resources, which results in sub-optimal performance.
π/4-tangentiality of solutions for one-dimensional Minkowski-curvature problems
Authors: Yang Rui , Sim Inbo , Lee Yong-Hoon 
Published: March 2020

AbstractWe analyze$\begin{array}{} \frac{\pi}{4} \end{array} $-tangentiality of solutions for several types of scalar equations and systems of one-dimensional Minkowski-curvature problems with two points Dirichlet boundary conditions, which is dependent on singularity of weight functions and the growth of nonlinear terms. One of the goals is to show non$\begin{array}{} \frac{\pi}{4} \end{array} $-tangentiality (∥u′∥∞< 1) of solutions for some of the above problems. We consider a larger class of weight functions and find out suitable nonlinear terms associated with it to keep non$\begin{array}{} \frac{\pi}{4} \end{array} $-tangentiality of solutions. Finally, we obtain Lyapunov-type inequalities for some nonlinear problems as by-products which also extend the results in some previous studies.
Amino-functionalized graphene oxide for Cr(VI), Cu(II), Pb(II) and Cd(II) removal from industrial wastewater
Authors: Huang Huayu , Wang Yang , Zhang Yubin , Niu Zhiying , Li Xinli 
Published: March 2020

AbstractAmino-functionalized graphene oxide (GO-NH2) was synthesized by grafting (3-aminopropyl) triethoxysilane on the graphene oxide (GO) surface. The GO-NH2 with high surface area and numerous active sites can efficiently adsorb Cr(VI), Cu(II), Pb(II) and Cd(II) ions. The maximum adsorption capacities of GO-NH2 for Cr(VI), Cu(II), Pb(II) and Cd(II) were 280.11, 26.25, 71.89 and 10.04 mg g−1, respectively. The pseudo-first-order and pseudo-second-order kinetic models were employed to describe the kinetic processes. The experimental data agreed well with the pseudo-second-order kinetic equation, and the adsorption of heavy metals onto GO-NH2 occurs via chemical adsorption. The characteristics of Cr(VI), Cu(II), Pb(II) and Cd(II) in the GO-NH2 adsorption processes were analyzed using the Langmuir and Freundlich isotherm models. The adsorption processes of Pb(II) and Cd(II) on GO-NH2 were fit by the Langmuir model. The Freundlich isotherm model was well correlated to Cr(VI) and Cu(II). The GO-NH2 is a promising material for the removal of heavy metal ions from industrial wastewater. This study provides an effective pathway to process industrial wastewater, and the GO-NH2 has a good adsorption effect for the treatment of heavy metals in industrial wastewater.
The Role of H2C2O4 and Na2CO3 as Precipitating Agents on The Physichochemical Properties and Photocatalytic Activity of Bismuth Oxide
Authors: Astuti Yayuk , Andianingrum Rizka ,   Arnelli, Haris Abdul , Darmawan Adi 
Published: March 2020

AbstractSynthesis of bismuth oxide synthesis through the precipitation method using H2C2O4 and Na2CO3 precipitating agents, identification of physicochemical properties and its photocatalysis activity for methyl orange degradation were conducted. The bismuth oxide synthesis was undertaken by dissolving Bi(NO3)3.5H2O in HNO3, then added precipitating agents to form precipitate. The results showed that bismuth oxide produced by H2C2O4 precipitating agent was a yellow powder containing a mixture of α-Bi2O3 (monoclinic) and β-Bi2O3 (tetragonal), porous with size of 28-85 μm. Meanwhile, the use of Na2CO3 as precipitating agent resulted in bismuth oxide consisting of α-Bi2O3 and β-Bi2O3 and Bi2O4, irregular shape without pore being 40-115 μm in size. Bismuth oxide synthesized with H2C2O4 precipitating agent showed higher photocatalytic activity compared to bismuth oxide synthesized using Na2CO3 on degrading methyl orange dye with degradation rate constants of 2.35x10-5 s-1 for H2C2O4 and 1.81x10-5 s-1 for Na2CO3.
Précis: Categories We Live By
Authors: Ásta  
Published: March 2020

Abstract
The project of Categories We Live By is to offer a metaphysics of social categories. The strategy is to give a theory of social properties of individuals. The main components of the theory are a conferralist framework for properties; an account of social meaning; and an account of social construction; accompanying is also an account of social identity. This theory can be applies to offer concrete conferralist proposals of categories such as sex, gender, race, disability, religion, and LGBTQ categories. This précis describes the main components (conferralist framework, social meaning, social construction, social identity) briefly, but leaves discussions of applications for another time.
Monolithic high-contrast grating planar microcavities
Authors: Czyszanowski Tomasz , Gębski Marcin , Pruszyńska-Karbownik Emilia , Wasiak Michał , Lott James A. 
Published: March 2020

Abstract
Semiconductor planar microcavities significantly enhance the interaction between light and matter and are thus crucial as a fundamental research platform for investigations of quantum information processing, quantum dynamics, and exciton-polariton observations. Microcavities also serve as a very agile basis for modern resonant-cavity light-emitting and detecting devices now in large-scale production for applications in sensing and communication. The fabrication of microcavity devices composed of both common materials now used in photonics and uncommon or arbitrary materials that are new to photonics offers great freedom in the exploration of the functionalities of novel microcavity device concepts. Here we propose and carefully investigate two unique microcavity designs. The first design uses a monolithic high-index-contrast grating (MHCG) and a distributed Bragg reflector (DBR) as the microcavity mirrors. The second design uses two MHCGs as the microcavity mirrors. We demonstrate by numerical analysis that MHCG-DBR and MHCG-MHCG microcavities, whose lateral radial dimension is 16 μm, reach very large quality factors at the level of 104 and nearly 106, as well as purposely designed wavelength tuning ranges of 8 and 60 nm in both configurations, respectively. Our MHCG-MHCG microcavities with a very small size of 600 nm in the vertical dimension show extremely large quality factors, which can be explained by treating the optical modes as quasi-bound states in a continuum (BICs). Moreover, we verify our theoretical analysis and calibrate our simulation parameters by comparing to the experimental characteristics of an electrically injected MHCG-DBR microcavity vertical-cavity surface-emitting laser (VCSEL) emitting at a peak wavelength of about 980 nm. We use the calibrated parameters to simulate the emission characteristics of electrically injected VCSELs in various MHCG-DBR and MHCG-MHCG microcavity configurations to illustrate the influence of microcavity designs and their quality factors on the predicted lasing properties of the devices.
Breaking polarisation-bandwidth trade-off in dielectric metasurface for unpolarised white light
Authors: Ansari Muhammad Afnan , Tauqeer Tauseef , Zubair Muhammad , Mehmood Muhammad Qasim 
Published: March 2020

Abstract
Optical metasurfaces have gained attention due to their considerable prospects, which can benefit consumers and industries in terms of virtual reality devices and digital displays in various multimedia and entertainment-related applications. To date, most of the metasurface optimisation strategies involving isotropic or anisotropic nanoantennas encounter a trade-off between polarisation insensitivity and operating bandwidth under unpolarised white light, which is a fundamental requirement for many applications in digital displays. We presented a novel technique to break the trade-off between polarisation insensitivity and bandwidth by engineering the displacement dependent phase delay of the adjacent parallel and perpendicular anisotropic nanoantennas in a dielectric metasurface. As a result, we numerically demonstrate a highly efficient metasurface operating at an almost entire visible domain (wavelength of 450 nm–650 nm) while maintaining a constant phase modulation under all polarisation states, thus enabling the polarisation-insensitive metadevices for unpolarised white light.
Senior Club-Level Rugby Union Player's Positional Movement Performance Using Individualized Velocity Thresholds and Accelerometer-Derived Impacts in Matches
Authors: Takamori Sohei , Hamlin Michael J. , Kieser David C. , King Doug , Hume Patria , Yamazaki Tetsuya , Hachiya Masashi , Olsen Peter D. 
Published: March 2020

Abstract
Takamori, S, Hamlin, MJ, Kieser, DC, King, D, Hume, P, Yamazaki, T, Hachiya, M, and Olsen, PD. Senior club-level rugby union player's positional movement performance using individualized velocity thresholds and accelerometer-derived impacts in matches. J Strength Cond Res 36(3): 710–716, 2022—Game demands of professional rugby union players have been well documented; however, there is minimal game demand information using individualized velocity thresholds and collision loads, particularly for amateurs. This study investigated movement patterns of 20 male amateur rugby players during 16 senior premier division one matches using global positioning system (GPS) devices sampling at 10 Hz. Derived GPS variables included distances, velocities, sprinting, and impacts. Data files from 86 player games (≥60 minutes of play per game) were categorized into broad (forwards and backs) and specific (front row, second row, back row, half back, inside back, and outside back) positional groups for analysis. It was most likely that backs covered more distance in the high-speed running (>60% maximal velocity) zone (502 ± 157 m) compared with forwards (238 ± 147 m) (100/0/0%, chances of positive/trivial/negative differences, effect size [ES] = 1.3), performed more striding (backs 1,116 ± 240, forwards 954 ± 240 m, 96/4/0%, ES = 0.5), and sprinting (backs 121 ± 58, forwards 90 ± 65 m, 93/7/0%, ES = 0.5). However, forwards had higher collision loads (35 ± 12 arbitrary units) compared with backs (20 ± 6, 99.9/0.1/0%, ES = 1.3) with back row forwards completing the highest collision load of any playing position (40 ± 13). Our example match movement performance and impact information is valuable to coaches and support staff in preparing player profiles for similar-level rugby players to help manage their workloads.
TMEM135 regulates primary ciliogenesis through modulation of intracellular cholesterol distribution
Authors: Maharjan Yunash , Lee Joon No , Kwak Seong Ae , Dutta Raghbendra Kumar , Park Channy , Choe Seong‐Kyu , Park Raekil 
Published: March 2020

AbstractRecent evidence has linked the lysosomal cholesterol accumulation in Niemann–Pick type C1 with anomalies associated with primary ciliogenesis. Here, we report that perturbed intracellular cholesterol distribution imposed by lysosomal cholesterol accumulation during TMEM135 depletion is closely associated with impaired ciliogenesis. TMEM135 depletion does not affect the formation of the basal body and the ciliary transition zone. TMEM135 depletion severely blunts Rab8 trafficking to the centrioles without affecting the centriolar localization of Rab11 and Rabin8, the upstream regulators of Rab8 activation. Although TMEM135 depletion prevents enhanced IFT20 localization at the centrioles, ciliary vesicle formation is not affected. Furthermore, enhanced IFT20 localization at the centrioles is dependent on Rab8 activation. Supplementation of cholesterol in complex with cyclodextrin rescues Rab8 trafficking to the centrioles and Rab8 activation, thereby recovering primary ciliogenesis in TMEM135‐depleted cells. Taken together, our data suggest that TMEM135 depletion prevents ciliary vesicle elongation, a characteristic of impaired Rab8 function. Our study thus reveals a previously uncharacterized effect of erroneous intracellular cholesterol distribution on impairing Rab8 function and primary ciliogenesis.
Development of the Proximal-Anterior Skeletal Elements in the Mouse Hindlimb Is Regulated by a Transcriptional and Signaling Network Controlled by Sall4
Authors: Chen Katherine Q , Tahara Naoyuki , Anderson Aaron , Kawakami Hiroko , Kawakami Sho , Nishinakamura Ryuichi , Pandolfi Pier Paolo , Kawakami Yasuhiko 
Published: March 2020

Abstract
The vertebrate limb serves as an experimental paradigm to study mechanisms that regulate development of the stereotypical skeletal elements. In this study, we simultaneously inactivated Sall4 using Hoxb6Cre and Plzf in mouse embryos, and found that their combined function regulates development of the proximal-anterior skeletal elements in hindlimbs. The Sall4; Plzf double knockout exhibits severe defects in the femur, tibia, and anterior digits, distinct defects compared to other allelic series of Sall4; Plzf. We found that Sall4 regulates Plzf expression prior to hindlimb outgrowth. Further expression analysis indicated that Hox10 genes and GLI3 are severely downregulated in the Sall4; Plzf double knockout hindlimb bud. In contrast, PLZF expression is reduced but detectable in Sall4; Gli3 double knockout limb buds, and SALL4 is expressed in the Plzf; Gli3 double knockout limb buds. These results indicate that Plzf, Gli3, and Hox10 genes downstream of Sall4, regulate femur and tibia development. In the autopod, we show that Sall4 negatively regulates Hedgehog signaling, which allows for development of the most anterior digit. Collectively, our study illustrates genetic systems that regulate development of the proximal-anterior skeletal elements in hindlimbs.
Perbandingan Pendapatan Nelayan Pekerja dengan Standar Upah Minimum Regional (UMR) Kabupaten Kulon Progo
Authors: Adi Catur Pramono , HS Dian Sutono 
Published: March 2020

Penelitian ini bertujuan untuk mengetahui pelaksanaan system bagi hasil dan system upah yang diterapkan pada usaha perikanan Gill Net di Pantai Trisik kabupaten Kulon Progo, untuk mengetahui tingkat BEP yang diterapkan sebagai batasan dalam menentukan pelaksanaan system bagi hasil dan untuk membandingkan antara system upah dan system bagi hasil yang diperoleh nelayan dan pemilik kapal dengan UMR yang ada di daerah Yogyakarta. Penelitian ini dilaksanakan di Pantai Trisik Desa Banaran, Kecamatan Galur, Kabupaten Kulon Progo pada awal bulan Agustus sampai dengan awal bulan Nopember 2017. Metode yang digunakan dalam penelitian ini meliputi metode study kasus, pengambilan sample, pengumpulan data dan analisa data. Dari hasil penelitian ini menunjukan bahwa pendapatan yang diterima oleh ABK Rp. 2.284.000,- per bulan dan Rp.10.420,- per jam , Pendapatan Nahkoda Rp.6.602.000,- per Bulan dan Rp.300.420,- per hari atau Rp. 37.552,- per jam. Namun untuk karyawan di Perusahaan mendapat penghasilan Rp. Rp.1.144.812,- per Bulan dan Rp. 38.160,- per hari serta Rp.4.770,- per Jam. Dengan demikian lebih menguntuingkan system bagi hasil pada usaha perikanan Gill Net monofilament di Pantai trisik kabupaten Kulon Progo bila dibandingkan dengan UMR tahun 2017 yang ada di daerah itu, sebesar Rp. 1.373.600,--
Analisis Laju Perpindahan Panas Sistem Pendingin Air Tawar pada Engine Generator Listrik
Authors: Tambunan Kaminton , Fanani Zainal , Prihajatno Muji 
Published: March 2020

Mesin generator merupakan suatu pesawat penggerak yang menghasilkan daya untuk menjalankan pembangkit listrik. Pengendalian panas pada generator engine dengan sistem pendingin air tawar berfungsi untuk menjaga stabilitas temperatur kerja mesin. Kemampuan air pendingin untuk menyerap panas hasil pembakaran melalui analisis data perpindahan panas yang dilakukan berdasarkan pengukuran dan perhitungan untuk mengetahui secara optimal kerja generator engine. Metode penelitian eksperimental dilakukan dengan memperbesar drum air pendingin, memperlancar air pendingin, dan menambah jumlah air pendingin. Berdasarkan hasil analisis eksperimental dan perhitungan bahwa pendinginen standar pada putaran 1500 rpm menghasilkan rata-rata Qpendinginan = 79.979,23 Watt; dan Prosentase penyerapan panas =14,04%. Pendinginan dengan bantuan drum pendingin pada putaran 1500 rpm menghasilkan rata-rata Qpendinginan = 32.737,60 Watt; dan Prosentase penyerapan panas =41,44%. Pendinginan dengan bantuan drum dan penambahan air pendingin pada putaran 1500 rpm menghasilkan rata-rata Qpendinginan = 27.350,40 Watt; dan Prosentase penyerapan panas =75,79%. Penambahan drum pendingin dan penambahan air pendingin akan mengoptimalkan laju pendinginan engine.
Mesin generator merupakan suatu pesawat penggerak yang menghasilkan daya untuk menjalankan pembangkit listrik. Pengendalian panas pada generator engine dengan sistem pendingin air tawar berfungsi untuk menjaga stabilitas temperatur kerja mesin. Kemampuan air pendingin untuk menyerap panas hasil pembakaran melalui analisis data perpindahan panas yang dilakukan berdasarkan pengukuran dan perhitungan untuk mengetahui secara optimal kerja generator engine. Metode penelitian eksperimental dilakukan dengan memperbesar drum air pendingin, memperlancar air pendingin, dan menambah jumlah air pendingin. Berdasarkan hasil analisis eksperimental dan perhitungan bahwa pendinginen standar pada putaran 1500 rpm menghasilkan rata-rata Qpendinginan = 79.979,23 Watt; dan Prosentase penyerapan panas =14,04%. Pendinginan dengan bantuan drum pendingin pada putaran 1500 rpm menghasilkan rata-rata Qpendinginan = 32.737,60 Watt; dan Prosentase penyerapan panas =41,44%. Pendinginan dengan bantuan drum dan penambahan air pendingin pada putaran 1500 rpm menghasilkan rata-rata Qpendinginan = 27.350,40 Watt; dan Prosentase penyerapan panas =75,79%. Penambahan drum pendingin dan penambahan air pendingin akan mengoptimalkan laju pendinginan engine.
Pemanfaatan Refrigerasi Tenaga Surya untuk Menjaga Mutu Hasil Tangkapan Nelayan
Authors: Hadi Rahmad , Apih Suparlin  , Dian Sutono  , Terry Yuliardi  
Published: March 2020

Menjaga mutu hasil tangkapan adalah bagian yang terpenting dari kegiatan penangkapan ikan pasca tangkap dengan tujuan untuk mempertahankan mutu hasil tangkapan sehingga memiliki harga jual yang tinggi. Penanganan ikan yang baik pasca tangkap diatas kapal merupakan salah satu cara untuk menjaga mutu hasil tangkapan. Penanganan yang dilakukan bisa dalam bentuk mempertahankan suhu hasil tangkapan. Berangkat dari hasil penelitian terapan tahun 2017 yang dilakukan terkait identifikasi kapal dan alat tangkap ikan di pesisir kabupaten karawang, disimpulkan bahwa nelayan-nelayan pesisir Kabupaten Karawang pada umumnya masih sangat rendah dalam penanganan ikan hasil tangkap sehingga hasil tangkapan yang diperoleh mutunya kurang baik ini secara langsung berdampak terhadap harga jual hasil tangkapan. Didasari oleh hal tersebut maka dibutuhkan mesin pendingin yang mudah tidak membebani dalam operasionalnya. Oleh karena itu tujuan dari penelitian ini adalah membuat mesin refrigerasi yang bertenaga surya (solar energy), mengetahui performa mini refrigeration unit yang telah dibuat (COP) dan mutu ikan yang tersimpan dalam mesin tersebut dengan uji organoleptik. Hasil penelitian menunjukan bahwa secara umum mini refrigeration unit yang dibuat bekerja dengan baik dengan performa (COP) sebesar 3.51 artinya mini refrigeration unit yang dibuat memiliki efisiensi yang baik yatu di atas 1. Untuk mutu hasil tangkap yang tersimpan dalam mini refrigeration memiliki nilai organoleptik diatas standar pangan yaitu rata-rata 8.
Ekplorasi Penentuan Lokasi Tangkap Perikanan Nelayan Bubu Tradisional Desa Assilulu Menggunakan Teknologi Fish Finder
Authors: Agung  , Achmad Jais Ely  
Published: March 2020

Penelitian ini bertujuan untuk mengeksplorasi penentuan lokasi tangkap perikanan bagi nelayan Bubu Tradisional dengan memanfaatkan teknologi fishfinder. Metode yang digunakan dalam penelitian ini adalah deskriptif eksplorasi, yang diperoleh dari wawancara dan survey lapangan. Adapun sampel lokasi ditentukan sesuai sebaran lokasi penangkapan. Saat ini nelayan bubu tradisional desa Assilulu masih menggunakan alat tradisional sebagai potakan dalam menentukan dan mencari keberadaan ikan yang akan ditangkap, sehingga produktivitas ikan yang dihasilkan tidak optimal, padahal sumber ikan yang ada di perairan laut Assilulu sangat melimpah. Sehingga dibutuhkan alat bantu yang mampu memenuhi produktivitas hasil tanggap. Hasil eksplorasi dari 6 lokasi berbeda dengan variasi kedalaman 30-60 meter menunjukkan perbandingan dari sudut pandang nelayan dan penggunaan teknologi fishfinder terdapat perbedaan pengamatan yang sangat berbeda. tingkat keanekaragaman spesies berada pada posisi indeks sedang dengan kisaran 1 ≤ H’ ≤ 3. Sedangkan pada indeks keseragaman, seluruh daerah masuk pada kriteria keseragaman tinggi indeks antara 0.73 – 0.82 dan 0.78 – 0.92. Untuk indeks dominansi memiliki nilai kisaran indeks antara 0.142 – 0.306 dan 0.125 – 0.178. Maka seluruh area penangkapan memiliki dominansi rendah, stabil, dan tidak terjadi tekanan ekologis Diagram ikan fungsional menunjukan bahwa ikan target tertinggi jatuh pada lokasi penangkapan Mimbar dan Nusi Hena, dengan nilai persentase masing-masing sebesar 19%.