bluuebunny/crossref_metadata_2025 huggingface dataset:
DESAIN INSTRUKSIONAL PROGRAM GURU PEMBELAJAR MODA DARING DAN DUKUNGANNYA TERHADAP KARAKTERISTIK PEMBELAJAR DEWASA
Authors: Indarti Indarti
Published: September 2018

Guru memiliki peranan sangat penting dalam peningkatan kualitas pendidikan di Indonesia. Berkenaan dengan hal tersebut, Kementerian Pendidikan dan Kebudayaan menyelenggarakan Program Guru Pembelajar untuk menjamin keberlangsungan peningkatan kompetensi dan profesionalisme guru. Program ini berbasis pada data nilai Uji Kompetensi Guru (UKG) tahun 2015. Salah satu representasi program ini adalah pelatihan guru. Modalitas pelatihan yang digunakan antara lain adalah daring murni. Modalitas ini membutuhkan desain pembelajaran yang khusus untuk dapat memfasilitasi peserta dengan latar belakang literasi komputer yang sangat beragam, serta karakteristik khusus mereka sebagai pembelajar dewasa yang akan mempengaruhi keberhasilan tujuan pembelajaran dari program ini. Tulisan ini akan membahas karakter khusus tersebut berkaitan dengan keterlibatan mereka sebagai pembelajar dewasa dalam kelas digital, serta desain pembelajaran (instructional design) yang ditujukan untuk memfasilitasi peserta mencapai tujuan pembelajaran. Metode yang digunakan dalam penulisan naskah ini adalah literatur review dan studi kasus tehadap sejumlah peserta Guru Pembelajar yang dilaksanakan oleh PPPPTK Matematika tahun 2016. Hasil studi memperlihatkan bahwa Program Guru Pembelajar Moda Daring memiliki desain instruksional yang relatif memenuhi kebutuhan peserta dan mendukung tercapainya tujuan pembelajaran para pesertanya.
FLIPPED CLASSROOM MATERIAL UNTUK MENINGKATKAN MINAT TECHNOPRENEUR SISWA SMK
Authors: Basyah Ali
Published: September 2018

Abstrak: Kemajuan negara dicapai dari seberapa besar lulusan pendidikannya dapat menghasilkan wirausaha. Apabila lebih dari 4% lulusan dapat menjadi wirausaha maka kemajuan negara mudah dicapai. SMK memiliki aims pada lulusannya yang dikenal dengan BMW yaitu bekerja, melanjutkan dan berwirausaha. Kelas wirausaha Multimedia diharapkan meningkatkan minat dan kemampuan siswa terjun dalam wirausaha khususnya technopreneur. Minat siswa SMK setelah lulus hampir 65% ingin bekerja, 33% ingin melanjutkan, hanya 2% siswa yang berminat berwirausaha terutama yang berlatar belakang keluarga pengusaha. Mata Pelajaran Produk Kreatif dan Kewirausahaan pada Kurilkulum 2013 revisi 2017 ini menerapkan program Kelas Terbalik (Flipped Classroom) untuk menumbuhkan semangat berwirausaha yang maksimal. Studi pada tahun 2017 didapatkan bahwa minat awal siswa berwirausaha hanya 3%, pada semester ganjil dapat tumbuh hingga mencapai 30% sedangkan diakhir semester genap (kelulusan) berdasarkan penelusuran minat terjun dalam technopreneur mencapai 55%. Dengan rincian 34% murni berwirausaha baru, 12% melanjutkan usaha keluarga dan melanjutkan studi, 54% berwirausaha sambil melanjutkan studi. Kesimpulan dari studi ini adalah melalui Flipped Classroom Material dapat menumbuhkan minat berwirausaha pada siswa Kelas XII Multimedia SMK Negeri 1 Mojokerto.
PENGGUNAAN SOFTWARE BEBAS (GNU/LINUX) DALAM PENDIDIKAN
Authors: Pramono Gatot
Published: September 2018

Gerakan Open source yang muncul sebagai reaksi atas komersialisasi yang berlebihan dan pematenan perangkat lunak telah menjadi gerakan yang bersifat global. Gerakan ini bertujuan untuk menyebar luaskan perangkat lunak bebas (free software) kepada masyarakat dunia. Bebas(free) yang dimaksud di sini lebih menekankan kepada kebebasan dalam memodifikasi dan bukan pada harga (baca gratis). Gerakan open source memiliki kaitan yang sangat erat dengan sistem operasi GNU-Linux karena pada kenyataannya sebagian besar perangkat bebas lunak berjalan di atas platform Linux. Tulisan ini akan mencoba menguraikan secara singkat munculnya gerakan open source, bagaimana para pengembang kemudian memaketkan dan menyebarkannya, serta aplikasiaplikasi apa saja yang bermanfaat bagi kita (khususnya untuk dunia pendidikan).
PEMBELAJARAN BERBASIS TEKNOLOGI KOMUNIKASI DAN INFORMASI DALAM RANGKA MEWUJUDKAN KEUNGGULAN PROSES BELAJAR
Authors: Purwanto Dr.
Published: September 2018

Tulisan ini menyajikan gagasan tentang pendidikan dan pembelajaran berbasisi ICT. Pembelajaran berbasis ICT di era informasi merupakan keharusan sebagai akibat dari perubahan di bidang teknologi. Di era informasi sekarang pendidikan harus mampu memanfaatkan teknologi canggih sebagai sarana belajar dan mendidik SDM yang terampil berkomunikasi. Pendidikan berbasisi ICT ditandai dengan di manfaatkannya banyak teknologi informasi damn kominikasi dalam proses pembelajaran. Meskipun demikian penyelenggaraan berbasisi ICT tersebut memerlukan persyaratan terkait dengan ketersediaan infrastruktur, kemampuan pengembangan content, dukungan policy dan kemampuan masyarakat. Adapun teknologi baru dan tersedianya infrastruktur di yakini akan menjadi awalan untuk perubahan yang cepat di bidang pendidikan. Agar pemanfaatan ICT dapat benar-benar mewujudkan pembelajaran yang ungguldiperlukan upaya difusi secara terus menerus, karena pendidikan berlangsung sepanjang hayat dan tanpa akhir.
YABANCILARA TÜRKÇE ÖĞRETİMİNDE KÜLTÜREL AKRABALIĞIN ÖNEMİNE DAİR BAZI TESPİTLER
Authors: Tanyıldız Ahmet
Published: September 2018

Dicle Üniversitesi bünyesinde Türkçe eğitimi
verdiğimiz Müslüman yabancı uyruklu öğrencilerin dil öğrenme sürecindeki başarı
oranlarında kültürel akrabalığın ciddi katkısı olmuştur. Örneğin din, tarih,
sembol şahsiyetler, klasik eserler, müzik ve geleneğe ait diğer unsurların
ortaklığı ve aşinalığı öğrenciyi motive eden hususlardan bazılarıdır. Bu
çalışmada ortak mazinin taşıyıcısı ülkelerin mensupları olan yabancı öğrencilere
Türkçenin öğretilmesinde, söz konusu kültür akrabalığının önemine dair kimi
tespitlerimiz paylaşılacaktır.
ÂŞIK PAŞA’YA MAL EDİLEN YENİ BİR YÛNUS EMRE GAZELİ ÜZERİNE
Authors: Kayaokay İlyas
Published: September 2018

Klasik Edebiyatımızın problemli
meselelerinden olan, bir manzumenin başka şairlere mal edilmesi durumu, belki
de en fazla Yûnus Emre’nin şiirlerinde görülmektedir. Yûnus mahlaslı pek çok
manzumenin Yûnus Emre’ye mal edildiği bilinmektedir. Bununla birlikte, Yûnus’un
da bazı manzumeleri başka şairlere isnat edilmiştir.          

Bu çalışmada Âşık Paşa’ya mal edilen bir
Yûnus Emre gazeli üzerinde durulacaktır. Garib-nâme adlı eseriyle şöhret bulmuş
olan Âşık Paşa’nın dağınık halde bulunan 54 şiiri tespit edilmiştir. Bu
şiirlerden bazıları Egridirli Hacı Kemâl’in Câmiü’n-Nezâir adlı eserinde yer
almaktadır. Buradaki şiirlerinden bazılarının başka şairlere ait olduğu tespit
edilen Âşık Paşa’nın, araştırmacıların gözden kaçırdığı bir manzumesi daha
vardır. Söz konusu gazel, Nesîmî’ye nazire olarak gösterilmiş olup Miskin
mahlası ile kayıtlıdır.

 

Dikkatlerden kaçan Âşık Paşa’ya isnat
edilen bu gazel, aslında Yûnus Emre’ye aittir. Aralarında zaman farkı olduğunu
için Âşık Paşa’nın Nesîmî’ye nazire yazma ihtimali bulunmamaktadır. Miskin
mahlasını Âşık Paşa değil Yûnus Emre kullanmıştır. Ayrıca Marmara Üniversitesi
İlahiyat Fakültesi kütüphanesinde bulunan 08802/HS0753 demirbaş numarasıyla
kayıtlı bir “Mecmuatü’l-Eş’ar” içinde bu gazelin Yûnus Emre adına kayıtlı
olduğu tespit edilmiştir. Yine 18. asır şairlerinden Ali Senâyî’nin bu gazele bir
tahmisi mevcuttur. Gazelin Yûnus’a ait olduğu Ali Senâyî tarafından da ifade
edilmiştir. Gazelin üslup özellikleri de Âşık Paşa’dan ziyade Yûnus’un
şiirlerindeki üslup ile benzerlikler göstermektedir. Bütün bu deliller
ışığında, gazelin Yûnus Emre’ye ait olduğu anlaşılmıştır.
ES-SEYYİD EL-HAC MUHAMMED ŞÜKRİ İBN AHMED 'ATÂ’NIN MÜNTEHABÂT-I MESNEVÎ’Sİ
Authors: İşbilir İbrahim
Published: September 2018

Türk edebiyatında çok mühim ve özel bir yere
sahip Mevlânâ Celâleddin-i Rûmî'nin dünyaca ünlü eseri olan Mesnevî’nin tarih
boyunca manzum ve mensur olmak üzere birçok defa başta Türkçe olmak üzere
çeşitli dillerde tercüme ve şerhleri yapılmıştır. Günümüzde de bu çalışmalar
devam etmektedir. Biz de bu çalışmada Yüksek Lisans tezi olarak çalıştığımız Es-Seyyid
el-Hac Muhammed Şükri
İbn Ahmed 'Atâ’nın “Müntehâbât-ı
Mesnevî”  adlı eserini tanıtacağız.
Harmine and its derivatives: Biological activities and therapeutic potential in human diseases
Authors: Javeed Maria , Rasul Azhar , Hussain Ghulam , Jabeen Farhat , Rasool Bilal , Riaz Ammara , Kaukab Ghazala , Ali Muhammad
Published: September 2018

This review article aims to provide an update on the sources, pharmaco-logical and biological profile of a β-carboline alkaloid, harmine which is a major bioactive component of various plants mainly Peganum harmala. Harmine’s wide range of pharmacological properties has been well-documented as anti-cancer, anti-inflammatory, anti-oxidant, neuroprotective, anti-depressant, and antimicrobial. Although reported data suggests a multifunctional pharmacological role of harmine but farther experimentation on its molecular mechanism of action, synthetic chemistry approaches, and preclinical studies are yet obligatory to fully uncover its pharmacological efficacy.
Serum osteocalcin and urinary free deoxypyridinoline as potential risk factors in predicting the prevalence of bone trauma among the post-menopausal Chinese women
Authors: Jiang Anqing , Liu Yijie , Li Xuefeng , Chen Jie , Wang Heng , Yang Huilin , Jiang Weimin
Published: September 2018

This study was designed to understand whether the post-menopausal Chinese women (n=175) receiving tablet containing vitamin D (500 IU) and calcium (500 mg) had lower incidence of bone fracture compared to the post-menopausal Chinese women ((n=175) receiving a diet rich in calcium, vitamin D, and protein  (milk, cheese, and yogurt, soybeans, spinach, fish including fatty fish, cheese, egg). This study assessed whether the levels of serum osteocalcin and urinary free deoxypyridinoline could be used as predictors of early bone trauma during post-menopausal period. After randomization, subjects were followed-up for up to 3 years to capture required data. The results suggested that therapeutic intervention (vitamin D and calcium) does not predict bone fracture among the post-menopausal Chinese women. However, correlation analysis revealed that the decreased level of serum osteocalcin and urinary free deoxypyridinoline were associated with higher incidence of fracture. The results suggest that the low level of serum osteocalcin and urinary free deoxypyridinoline cause increase susceptibility of fracture among the post-menopausal Chinese women.
Digital Subtraction Angiography of Anterior Cerebral Artery Complex in Indian Population at Two Tertiary Super-Specialty Hospitals
Authors: Hossain Md Amir , Husain Shakir , Islam Md Shohidul , Khan Muhammed Abdul Momen
Published: September 2018

Background: Cerebral circulation has different variations in blood supply. Anterior cerebral artery is an important terminal branch of internal carotid artery. It forms the anterior component of circle of Willis along with the anterior communicating artery. The knowledge of anatomical variations in anterior cerebral artery is of considerable help to clinicians.Objective: The purpose of the study is to find out common anatomical variations of anterior cerebral artery complex by digital subtraction angiography in Indian population.Methodology: This descriptive cross-sectional study was conducted in the Neurointervention department of Max Super-specialty Hospital, New Delhi and Neo Multi-specialty Hospital, Noida, India during July 2016 to December 2016 for a period of six (06) months. Patients admitted in the Neurointervention department for digital subtraction angiography (DSA) were included in this study. Sampling technique was purposive. The angiogram machine was SIEMENS Artis Zee system and framing rate was 4f/sec. Morphology and variations of the anterior cerebral arteries and the anterior communicating artery were studied in 75 patients undergone cerebral DSA.Results: Variations were found in 48% (n=36). Variations of the segments in relation with size, course, communications and terminations of the anterior cerebral artery (ACA) were noted. These were divided into different groups like hypoplasia, aplasia, duplication and fenestrations. Hypoplasia/Aplasia of proximal anterior cerebral artery (A1) was 13.3% in right side and 5.3% in left side. Anterior communicating artery (AComA) was found absent in 10.7% and fenestration in 12%. Callosomarginal artery was found absent in 1.3% in right side and 5.3% in left side. In right callosomarginal artery 6.8% had abnormal origin and 4.2% abnormal in left side. Pericallosal artery was present 100% on both sides.Conclusion: Variations of anterior cerebral artery complex anatomy is found common in Indian population. Among them hypoplasia/aplasia is most commonJournal of National Institute of Neurosciences Bangladesh, 2018;4(1): 12-17
Attitude of Health Care Providers on Snake Bite in Rural Community of Bangladesh
Authors: Ahsan Hafez Mohammad Nazmul , Rahman Md Ridwanur , Amin Robed , Morshed Syed Mahbub , Hossain Md Amzad , Kamal Mostafa
Published: September 2018

Background: Health care providers have different attitude and practice about the snake bite in rural community of Bangladesh.Objective: The purpose of the present study was to know the attitude and practice about the snake bite in rural community of Bangladesh.Methodolgoy: The findings from survey study on snake bite have been elicited from face to face interview with 243 number of medical professionals/health service providers consisting of 113 number of MBBS doctors, 86 number of nurses and 46 number of other health practitioners. The study area consisted of 5 zillasadar hospitals and 15 upazilla health complexes. This study aims to assess the Attitude and Practice of snakebite in rural community and effective management of snake bite through community engagement and using health care system of Bangladesh approach for prevention of snakebite in rural community and effective management of snake bite for the rural Bangladeshi people. It uses the methodological triangulation qualitative and quantitative approach as well as a case study design in analyzing data, whereby the exploratory-descriptive design is followed.Result: We purposively select the 243 sample (Doctors, Nurses, Paramedics ,Others) from the selected districts and its consisting random upazillas from the govt. sector hospitals keeping in mind gender balance (Male-Female) as a primary total target population. So in total, 5 division and its consisting random upazilas hospital including union health complex hospital personnel (From District, Upazilla& Community Hospitals)will be interviewed throughout mention areas of Bangladesh. The findings show that 60.1% of doctors, 50.0% of nurses and 56.8% of practitioners have a notion that the snake bite victims would go to Ozha followed by 11.5% of doctors, 4.7% of nurses and 11.4% of practitioners have a notion that they would go to the local healers and that of 26.5% of doctors, 41.9% of nurses and 32.9% of practitioners mentioned that the snake bite victims would go to doctors. The findings show that 69.0% of doctors, 64.0% of nurses and 56.8% of practitioners will recommend not to apply ‘ tight bandage’ to victim’s snake bite spot and 67.3% of doctors, 65.1% of nurses and 13.6% of practitioners will recommend not to apply ‘Suction by mouth or chick’ to victim’s snake bite spot. The findings show that 82.3% of doctors, 90.7% of nurses and 70.5% of practitioners applied first aid to the snake bite victim as their common practice.Conclusion: Majority of health professionals are well informed regarding harmful traditions and measuresJournal of National Institute of Neurosciences Bangladesh, 2018;4(1): 28-32
Validity of Ultrasonography for the Estimation of Macrosomia among Pregnant women with Diabetes Mellitus
Authors: Nahar Shamsun , Khan Asma , Chowdhury TA , Mohiuddin AS
Published: September 2018

Background: Estimation of fetal weight by ultrasonography is crucial for the determination of macrosomia cases among the pregnant women with diabetes mellitus.Objectives: The purpose for the present study was to validate the ultrasonography for the estimation of fetal weight among the macrosomia cases in pregnant women with diabetes mellitus.Methodology: This cross-sectional study was carried out in inpatient Department of Obstetrics and Gynecology and in outpatients Department of Radiology and Imaging, Bangladesh Institute of Research and Rehabilitation for Diabetes, Endocrine and Metabolic Disorders (BIRDEM) at Dhaka, Bangladesh during the period of April 2005 to March 2007. Pregnant women with diagnosed DM or GDM selected for caesarean section or induction of labour, gestational age 236 weeks having 23700 gm by clinical method were included in this study. First clinical estimation of fetal weight was done by the investigator then Radiologist estimated the fetal weight without knowing the EFW by clinical method. The actual birth weight was estimated after the birth of the babies.Result: It was found that in 56.5% and 60.9% cases was evaluated as macrosomia in clinical and USG examination respectively (p>0.05). Clinically and actually macrosomia were found 56.5% and 63.8% respectively (p>0.05). It was found that in 60.9% cases macrosomia at USG diagnosis and 63.8% case was macrosomia actually (p>0.05). It was observed that out of 39 macrosomia cases evaluated clinically could ultimately evaluate 27(69.2%) cases after birth, USG detected 42 macrosomia which ultimately evaluate 30(71.4%) cases, and actually after birth macrosomia found 44(63.8%). The validity of clinical and sonographic method for evaluation of macrosomia were studied by sensitivity, specificity and accuracy which were 61.4%, 52.0%, 58.0% and 68.2%, 52.0%, 62.3% respectively.Conclusion: In conclusion the ultrasonography is poor diagnostic tools for the estimation of macrosomia among the diabetic mother.Journal of National Institute of Neurosciences Bangladesh, 2018;4(1): 40-44
Complexity of Hamiltonian Cycle Reconfiguration
Authors: Takaoka Asahi
Published: September 2018

The Hamiltonian cycle reconfiguration problem asks, given two Hamiltonian cycles C 0 and C t of a graph G, whether there is a sequence of Hamiltonian cycles C 0 , C 1 , … , C t such that C i can be obtained from C i − 1 by a switch for each i with 1 ≤ i ≤ t , where a switch is the replacement of a pair of edges u v and w z on a Hamiltonian cycle with the edges u w and v z of G, given that u w and v z did not appear on the cycle. We show that the Hamiltonian cycle reconfiguration problem is PSPACE-complete, settling an open question posed by Ito et al. (2011) and van den Heuvel (2013). More precisely, we show that the Hamiltonian cycle reconfiguration problem is PSPACE-complete for chordal bipartite graphs, strongly chordal split graphs, and bipartite graphs with maximum degree 6. Bipartite permutation graphs form a proper subclass of chordal bipartite graphs, and unit interval graphs form a proper subclass of strongly chordal graphs. On the positive side, we show that, for any two Hamiltonian cycles of a bipartite permutation graph and a unit interval graph, there is a sequence of switches transforming one cycle to the other, and such a sequence can be obtained in linear time.
Agronomic and Economic Performance of Maize, Soybean, and Wheat in Different Rotations during the Transition to an Organic Cropping System
Authors: Cox William J. , Hanchar John J. , Cherney Jerome
Published: September 2018

Crop producers transitioning to an organic cropping system must grow crops organically without price premiums for 36 months before certification. We evaluated red clover-maize, maize-soybean, and soybean-wheat/red clover rotations in organic and conventional cropping systems with recommended and high inputs in New York, USA to identify the best rotation and management practices during the transition. Organic compared with conventional maize with recommended inputs in the maize-soybean rotation (entry crop) averaged 32% lower yields, $878/ha higher production costs, and $1096/ha lower partial returns. Organic maize compared with conventional maize with recommended inputs in the red clover-maize rotation (second transition crop) had similar yields, production costs, and partial returns. Organic compared with conventional soybean with recommended inputs in soybean-wheat/red clover or maize-soybean rotations had similar yields, production costs, and partial returns. Organic compared with conventional wheat with recommended inputs in the soybean-wheat/clover rotation had similar yields, $416/ha higher production costs, and $491/ha lower partial returns. The organic compared with the conventional soybean-wheat/red clover rotation had the least negative impact on partial returns during the transition. Nevertheless, all organic rotations had similar partial returns ($434 to $495/ha) so transitioning immediately, regardless of entry crop, may be most prudent. High input management did not improve organic crop yields during the transition.
PCB11 Metabolite, 3,3’-Dichlorobiphenyl-4-ol, Exposure Alters the Expression of Genes Governing Fatty Acid Metabolism in the Absence of Functional Sirtuin 3: Examining the Contribution of MnSOD
Authors: Alam Sinthia , Carter Gwendolyn S. , Krager Kimberly J. , Li Xueshu , Lehmler Hans-Joachim , Aykin-Burns Nukhet
Published: September 2018

Although the production of polychlorinated biphenyls (PCBs) is prohibited, the inadvertent production of certain lower-chlorinated PCB congeners still threatens human health. We and others have identified 3,3’-dichlorobiphenyl (PCB11) and its metabolite, 3,3’-dichlorobiphenyl-4-ol (4OH-PCB11), in human blood, and there is a correlation between exposure to this metabolite and mitochondrial oxidative stress in mammalian cells. Here, we evaluated the downstream effects of 4OH-PCB11 on mitochondrial metabolism and function in the presence and absence of functional Sirtuin 3 (SIRT3), a mitochondrial fidelity protein that protects redox homeostasis. A 24 h exposure to 3 μM 4OH-PCB11 significantly decreased the cellular growth and mitochondrial membrane potential of SIRT3-knockout mouse embryonic fibroblasts (MEFs). Only wild-type cells demonstrated an increase in Manganese superoxide dismutase (MnSOD) activity in response to 4OH-PCB11–induced oxidative injury. This suggests the presence of a SIRT3-mediated post-translational modification to MnSOD, which was impaired in SIRT3-knockout MEFs, which counters the PCB insult. We found that 4OH-PCB11 increased mitochondrial respiration and endogenous fatty-acid oxidation-associated oxygen consumption in SIRT3-knockout MEFs; this appeared to occur because the cells exhausted their reserve respiratory capacity. To determine whether these changes in mitochondrial respiration were accompanied by similar changes in the regulation of fatty acid metabolism, we performed quantitative real-time polymerase chain reaction (qRT-PCR) after a 24 h treatment with 4OH-PCB11. In SIRT3-knockout MEFs, 4OH-PCB11 significantly increased the expression of ten genes controlling fatty acid biosynthesis, metabolism, and transport. When we overexpressed MnSOD in these cells, the expression of six of these genes returned to the baseline level, suggesting that the protective role of SIRT3 against 4OH-PCB11 is partially governed by MnSOD activity.
A Dual Stage Low Power Converter Driving for Piezoelectric Actuator Applied in Micro Mobile Robot
Authors: Chen Chen , Liu Meng , Wang Yanzhang
Published: September 2018

Piezoelectric actuators are widely utilized to convert electrical energy into mechanical strain with considerable potential in micro mobile robot applications. However, the use of Pb-based Lanthanumdoped Zirconate Titanates (PZTs) leads to two difficulties in drive circuit design, namely, high voltage step-up ratio and high energy conversion efficiency. When some devices driven by piezoelectric actuators are used in emerging technologies, such as micro mobile robot, to perform special tasks, low mass, high energy density, and high conversion efficiency are strategically important. When these demands are considered, conventional drive circuits exhibit the disadvantages of being too bulky and inefficient for low mass applications. To overcome the aforementioned drawbacks, and to address the need for a piezoelectric bimorph actuator, this work proposed a high step-up ratio flyback converter cascaded with a bidirectional half-bridge stage controlled, via a pulse width modulation strategy, and a novel control method. Simulations and experiments were conducted to verify the ability of the proposed converter to drive a 100 V-input piezoelectric bimorph actuator using a prototype 108 mg (excluding printed circuit board mass), 169 (13 × 13) mm2, and 500 mW converter.
Sensitivity Analysis for Ship-to-Shore Container Crane Design
Authors: Tran Quang Huy , Huh Jungwon , Nguyen Van Bac , Kang Choonghyun , Ahn Jin-Hee , Park Inn-Joon
Published: September 2018

Ship-to-shore (STS) container cranes are important pieces of equipment in container terminals for container handling, so they need to be properly designed to avoid damage or collapse due to natural hazards (i.e., storms or earthquakes). However, the dynamic analyses necessary for this can be cost- and time-consuming because of the need to consider the time history of ground motions and several sources of uncertainty. Thus, sensitivity analysis on the input parameters to the responses of the structures is needed to categorize which sources of uncertainty are significant enough to be considered as random variables. In this study, an investigation is carried out into the sensitivity of some sources of uncertainty to the seismic response of a Korean container crane structure. The input random variables studied include ground motion intensity, ground motion profiles, mass, damping, and elastic modulus of steel. Nonlinear dynamic analyses are conducted using a set of 20 natural ground motions scaled to three ground motion intensity levels, in compliance with the Korean Design Standard. The method of deterministic sensitivity analysis using the so-called tornado diagram is applied for the evaluation of structural systems. For the studied type of Korean container crane, it can be stated that the intensity of ground motions (i.e., spectral acceleration) is the most significant input parameter on the response of the structure, as measured in terms of portal drift, vertical reaction of the crane’s legs, and total base shear. The next most significant influencing factors are the mass of the structure and the characteristics of every ground motion. Damping plays a relatively important role on the total base shear, while it shows almost no impact on the axial reaction of the crane’s legs. Of the three engineering design parameters (portal drift, vertical reaction, and total base shear), the elastic modulus exhibits a low effect, but it should be considered a source of uncertainty in seismic analysis.
Design and Experiment of Wideband Filters Based on Double-Layered Square-Loop Arrays in the F-Band
Authors: Yang Jun , Yang Yang , Wang Peng , Deng Guangsheng , Cai Fei , Lu Hongbo , Yin Zhiping
Published: September 2018

We present a wideband metamaterial (MM) filter based on a metal-dielectric-metal (MDM) structure. The proposed structure consists of a quartz dielectric substrate and two metallic square-loop arrays, which were deposited on both surfaces of the substrate. The performance of the proposed design was numerically simulated by considering the angle of incidence. The surface current and electric field distributions were calculated for the two resonant frequencies to examine the intrinsic mechanism of the proposed filter. The transmittance of the structure for various oblique angles of incidence was also analyzed. It is generally challenging to completely align the two metallic layers due to limitations in the manufacturing process. Hence, the influence of periodic misalignment on wave propagation was studied. Furthermore, a prototype of the proposed structure was fabricated and the transmission spectra were measured. Simulation and experimental results reveal that our proposed filter can achieve wideband transmission in the F-band. This work is valuable for the design of broadband filters in millimeter and terahertz waves.
Memory-Enhanced Dynamic Multi-Objective Evolutionary Algorithm Based on Lp Decomposition
Authors: Xu Xinxin , Tan Yanyan , Zheng Wei , Li Shengtao
Published: September 2018

Decomposition-based multi-objective evolutionary algorithms provide a good framework for static multi-objective optimization. Nevertheless, there are few studies on their use in dynamic optimization. To solve dynamic multi-objective optimization problems, this paper integrates the framework into dynamic multi-objective optimization and proposes a memory-enhanced dynamic multi-objective evolutionary algorithm based on L p decomposition (denoted by dMOEA/D- L p ). Specifically, dMOEA/D- L p decomposes a dynamic multi-objective optimization problem into a number of dynamic scalar optimization subproblems and coevolves them simultaneously, where the L p decomposition method is adopted for decomposition. Meanwhile, a subproblem-based bunchy memory scheme that stores good solutions from old environments and reuses them as necessary is designed to respond to environmental change. Experimental results verify the effectiveness of the L p decomposition method in dynamic multi-objective optimization. Moreover, the proposed dMOEA/D- L p achieves better performance than other popular memory-enhanced dynamic multi-objective optimization algorithms.
Johnson–Holmquist-II(JH-2) Constitutive Model for Rock Materials: Parameter Determination and Application in Tunnel Smooth Blasting
Authors: Wang Jianxiu , Yin Yao , Luo Chuanwen
Published: September 2018

The Johnson–Holmquist-II(JH-2) model is introduced as the constitutive model for rock materials in tunnel smooth blasting. However, complicated and/or high-cost experiments need to be carried out to obtain the parameters of the JH-2 constitutive model. This study chooses Barre granite as an example to propose a quick and convenient determination method for the parameters of the JH-2 model using a series of computational and extrapolated methods. The validity of the parameters is verified via comparing the results of 3D numerical simulations with laboratory blast-loading experiments. Subsequently, the verified parameter determination method, together with the JH-2 damage constitutive model, is applied in the numerical simulation of smooth blasting in Zigaojian tunnel, Hangzhou–Huangshan high-speed railway. The overbreak/underbreak induced by rock blasting and joints/discontinuities is well estimated through comparing the damage contours resulting from the numerical study with the tunnel profiles measured from the tunnel site. The peak particle velocities (PPVs) of the near field are extracted to estimate the damage scope and damage degree for the surrounding rock mass of the tunnel on the basis of PPV damage criteria. This method can be used in the excavation of rock tunnels subjected to large strains, high strain rates, and high pressures, thereby reducing safety risk and economic losses.
Associative Memories to Accelerate Approximate Nearest Neighbor Search
Authors: Gripon Vincent , Löwe Matthias , Vermet Franck
Published: September 2018

Nearest neighbor search is a very active field in machine learning. It appears in many application cases, including classification and object retrieval. In its naive implementation, the complexity of the search is linear in the product of the dimension and the cardinality of the collection of vectors into which the search is performed. Recently, many works have focused on reducing the dimension of vectors using quantization techniques or hashing, while providing an approximate result. In this paper, we focus instead on tackling the cardinality of the collection of vectors. Namely, we introduce a technique that partitions the collection of vectors and stores each part in its own associative memory. When a query vector is given to the system, associative memories are polled to identify which one contains the closest match. Then, an exhaustive search is conducted only on the part of vectors stored in the selected associative memory. We study the effectiveness of the system when messages to store are generated from i.i.d. uniform ±1 random variables or 0–1 sparse i.i.d. random variables. We also conduct experiments on both synthetic data and real data and show that it is possible to achieve interesting trade-offs between complexity and accuracy.
Fault Detection of Stator Inter-Turn Short-Circuit in PMSM on Stator Current and Vibration Signal
Authors: Liang Hong , Chen Yong , Liang Siyuan , Wang Chengdong
Published: September 2018

The stator inter-turn short circuit fault is one of the most common and key faults in permanent magnet synchronous motor (PMSM). This paper introduces a time–frequency method for inter-turn fault detection in stator winding of PMSM using improved wavelet packet transform. Both stator current signal and vibration signal are used for the detection of short circuit faults. Two different experimental data from a three-phase PMSM were processed and analyzed by this time–frequency method in LabVIEW. The feasibility of this approach is shown by the experimental test.
The Intra-Class and Inter-Class Relationships in Style Transfer
Authors: Cui Xin , Qi Meng , Niu Yi , Li Bingxin
Published: September 2018

Neural style transfer, which has attracted great attention in both academic research and industrial engineering and demonstrated very exciting and remarkable results, is the technique of migrating the semantic content of one image to different artistic styles by using convolutional neural network (CNN). Recently, the Gram matrices used in the original and follow-up studies for style transfer were theoretically shown to be equivalent to minimizing a specific Maximum Mean Discrepancy (MMD). Since the Gram matrices are not a must for style transfer, how to design the proper process for aligning the neural activation between images to perform style transfer is an important problem. After careful analysis of some different algorithms for style loss construction, we discovered that some algorithms consider the relationships between different feature maps of a layer obtained from the CNN (inter-class relationships), while some do not (intra-class relationships). Surprisingly, the latter often show more details and finer strokes in the results. To further support our standpoint, we propose two new methods to perform style transfer: one takes inter-class relationships into account and the other does not, and conduct comparative experiments with existing methods. The experimental results verified our observation. Our proposed methods can achieve comparable perceptual quality yet with a lower complexity. We believe that our interpretation provides an effective design basis for designing style loss function for style transfer methods with different visual effects.
Proton Beam Therapy in Combination with Intra-Arterial Infusion Chemotherapy for T4 Squamous Cell Carcinoma of the Maxillary Gingiva
Authors: Endo Hiromasa , Takayama Kanako , Mitsudo Kenji , Nakamura Tatsuya , Seto Ichiro , Yamaguchi Hisashi , Ono Takashi , Suzuki Motohisa , Azami Yusuke , Wada Hitoshi , Murakami Masao , Tohnai Iwai
Published: September 2018

This study aimed to evaluate the therapeutic effect and toxicity of proton beam therapy in combination with intra-arterial infusion chemotherapy in patients with squamous cell carcinoma of the maxillary gingiva. Between December 2010 and March 2016, 30 patients with T4 squamous cell carcinoma of the maxillary gingiva were treated with radiotherapy and retrograde intra-arterial infusion chemotherapy using cisplatin (20–40 mg/m2, 4–6 times). Radiotherapy was basically administered using boost proton beam therapy for primary tumor and neck lymph node tumors, following 36–40 Gy photon radiation therapy delivered to the prophylactic area, to a total dose of 70.4–74.8 Gy. The median follow-up was 33 months. The 3-year local control and overall survival rates were 69% and 59%, respectively. Major grade 3 or higher acute toxicities included mucositis, neutropenia, and dermatitis in 12 (40%), 5 (17%), and 3 (10%) patients, respectively. No grade 3 or higher late toxicities were observed. These results suggested that proton beam therapy in combination with intra-arterial infusion chemotherapy was not inferior to other treatment protocols and should be considered as a safe and effective option in patients with T4 squamous cell carcinoma of the maxillary gingiva.
Innovative Multi-Site Photoplethysmography Analysis for Quantifying Pulse Amplitude and Timing Variability Characteristics in Peripheral Arterial Disease
Authors: Bentham Michael , Stansby Gerard , Allen John
Published: September 2018

Photoplethysmography (PPG) is a simple-to-perform vascular optics measurement technique that can detect blood volume changes in the microvascular bed of tissue. Beat-to-beat analysis of the PPG waveform enables the study of the variability of pulse features, such as the amplitude and the pulse arrival time (PAT), and when quantified in the time and frequency domains, has considerable potential to shed light on perfusion changes associated with peripheral arterial disease (PAD). In this pilot study, innovative multi-site bilateral finger and toe PPG recordings from 43 healthy control subjects and 31 PAD subjects were compared (recordings each at least five minutes, collected in a warm temperature-controlled room). Beat-to-beat normalized amplitude variability and PAT variability were then quantified in the time-domain using two simple statistical measures and in the frequency-domain bilaterally using magnitude squared coherence (MSC). Significantly reduced normalized amplitude variability (healthy control 0.0384 (interquartile range 0.0217–0.0744) vs. PAD 0.0160 (0.0080–0.0338) (p < 0.0001)) and significantly increased PAT variability (healthy control 0.0063 (0.0052–0.0086) vs. PAD 0.0093 (0.0078–0.0144) (p < 0.0001)) was demonstrated for the toe site in PAD using the time-domain analysis. Frequency-domain analysis demonstrated significantly lower MSC values across a range of frequency bands for PAD patients. These changes suggest a loss of right-to-left body side coherence and cardiovascular control in PAD. This study has also demonstrated the feasibility of using these measurement and analysis methods in studies investigating multi-site PPG variability for a wide range of cardiac and vascular patient groups.
Detection of Caries Around Resin-Modified Glass Ionomer and Compomer Restorations Using Four Different Modalities In Vitro
Authors: Abrams Tamara , Abrams Stephen , Sivagurunathan Koneswaran , Moravan Veronika , Hellen Warren , Elman Gary , Amaechi Bennett , Mandelis Andreas
Published: September 2018

The aim of this study was to evaluate the ability of visual examination (International Caries Detection and Assessment System—ICDAS II), light-emitting diodes (LED) fluorescence (SPECTRA), laser fluorescence (DIAGNODent, DD), photothermal radiometry and modulated luminescence (PTR-LUM, The Canary System, CS) to detect natural decay beneath resin-modified glass ionomer (RMGIC) and compomer restorations in vitro. Twenty-seven extracted human molars and premolars, consisting of 2 control teeth, 10 visually healthy/sound and 15 teeth with natural cavitated lesions, were selected. For the carious teeth, caries was removed leaving some carious tissue on one wall of the preparation. For the sound teeth, 3 mm deep cavity preparations were made. All cavities were restored with RMGIC or compomer restorative materials. Sixty-eight sites (4 sites on sound unrestored teeth, 21 sound sites and 43 carious sites with restorations) were selected. CS and DD triplicate measurements were done at 2, 1.5, 0.5, and 0 mm away from the margin of the restoration (MOR). SPECTRA images were taken, and two dentists provided ICDAS II scoring for the restored surfaces. The SPECTRA data and images were inconclusive due to signal interference from the restorations. Visual examinations of the restored tooth surfaces were able to identify 5 of the 15 teeth with caries. In these situations, the teeth were ranked as having ICDAS II 1 or 2 rankings, but they could not identify the location of the caries or depth of the lesion. CS and DD were able to differentiate between sound and carious tissue at the MOR, but larger variation in measurement, and poorer accuracy, was observed for DD. It was concluded that the CS has the potential to detect secondary caries around RMGIC and compomer restorations more accurately than the other modalities used in this study.
Harmonic Sierpinski Gasket and Applications
Authors: Guariglia Emanuel
Published: September 2018

The aim of this paper is to investigate the generalization of the Sierpinski gasket through the harmonic metric. In particular, this work presents an antenna based on such a generalization. In fact, the harmonic Sierpinski gasket is used as a geometric configuration of small antennas. As with fractal antennas and Rényi entropy, their performance is characterized by the associated entropy that is studied and discussed here.
Supporting Students in Building and Using Models: Development on the Quality and Complexity Dimensions
Authors: Bielik Tom , Opitz Sebastian , Novak Ann
Published: September 2018

Past research has identified elements underlying modeling as a core science and engineering practice, as well as dimensions along which students’ learn how to use models and how they perceive the nature of modeling. To extend these findings by a perspective on how modeling practice can be used in classrooms, we used design-based research to investigate how the modeling practice elements, i.e., construct, use, evaluate, and revise, were integrated in a middle school unit about water quality that included using an online modeling tool. We focus on N = 3 groups as cases to track and analyze 7th grade students’ modeling practice and metamodeling knowledge across the unit. Students constructed, used, evaluated, and revised their models based on data they collected and concepts they learned. Results indicate most students succeeded in constructing complex models using the modeling tool by consecutively adding and specifying variables and relationships. This is a positive finding compared to prior research on students’ metamodeling knowledge. Similar to these studies, we observed several basic metamodeling conceptions and generally less progress in this field than in students’ models. We discuss implications for applying modeling practice in classrooms and explain how students make use of the different modeling practice elements by developing their models in the complexity and quality dimensions.
Ray Tracing Comparison between Triple-Junction and Four-Junction Solar Cells in PMMA Fresnel-Based High-CPV Units
Authors: Ferrer-Rodríguez Juan P. , Valera Alvaro , Fernández Eduardo F. , Almonacid Florencia , Pérez-Higueras Pedro
Published: September 2018

The recent development of wafer bonded four-junction concentrator solar cells (FJSCs) with record efficiency among all the existent photovoltaic (PV) cells offers new possibilities for improving the High Concentrator PV (HCPV) technology. However, the concentrator optical systems utilized in HCPV modules may have to be adapted to the new requirements of FJSC in order to properly take advantage of the increased number of p-n junctions. This research theoretically compares two identical optical concentrator systems, a Frensel lens plus a kind of refractive SILO (SIngle-Lens-Optical element) secondary (both made of PMMA, poly(methyl methacrylate)), which are equipped with a typical triple-junction concentrator solar cell (TJSC) in the one case, and with an FJSC in the other case. Both HCPV units are analyzed through ray tracing optical simulations applying an exhaustive optical modelling that takes into account the spectral responses of the different subcells within the multi-junction cells. The HCPV unit with the FJSC and PMMA SOE (secondary optical element) shows much less efficiency than that with the TJSC due to the light absorption through the PMMA SOE in the wavelength range of the bottom subcell. Therefore, PMMA SOEs may be not appropriate for FJSC in general.
Combined Ball Milling and Ethanol Organosolv Pretreatment to Improve the Enzymatic Digestibility of Three Types of Herbaceous Biomass
Authors: Kim Seong Ju , Um Byung Hwan , Im Dong Joong , Lee Jin Hyung , Oh Kyeong Keun
Published: September 2018

A combined ball milling and ethanol organosolv process is proposed for the pretreatment of three types of herbaceous biomass, giant miscanthus, corn stover, and wheat straw. The combined pretreatment was effective at both removing lignin and increasing the glucan content. After 120 min pretreatment, the glucan content increased to 63.09%, and 55.89% of the acid-insoluble lignin was removed from the giant miscanthus sample. The removal of cellulose, hemicellulose, and acetyl groups were correlated with the removal of lignin. The pretreatment of corn stover showed the highest removal of cellulose, but this was dependent on the removal of acid-insoluble lignin. The slope of the regression lines, which shows the correlation between the removal of lignin and cellulose, was lower than other correlations. The changes in biomass size were analyzed using size distribution graphs. With increasing pretreatment time, the particle size reduction improved in the three types of herbaceous biomass. Because of the combined physicochemical pretreatment, the enzymatic digestibility improved, and a maximum of 91% glucan digestibility was obtained from the pretreated corn stover when 30 FPU/g-glucan enzyme was added. Finally, compositional analysis of the recovered lignin from the remaining black liquor was investigated.
Estimation of the Hydrophobicity of a Composite Insulator Based on an Improved Probabilistic Neural Network
Authors: Sun Qiuqin , Lin Fei , Yan Weitao , Wang Feng , Chen She , Zhong Lipeng
Published: September 2018

The estimation of hydrophobicity for composite insulators is of great importance for the purpose of predicting the surface degradation. The hydrophobic image is firstly decomposed by the 2-level wavelet, along with the multi-Retinex algorithm in this paper. The processed low frequency sub-band and high frequency sub-band images are then reconstructed. The 3 × 3 Sobel operator is performed to measure the basic spatial gradient in four directions, including the horizontal direction, the diagonal direction, and then the vertical direction. The shape factor, the area ratio of the largest water droplet, and the coverage rate of the water droplet are selected as the feature parameters and input into the classification network that has been trained to do the hydrophobic level recognition. The effect of the different expansion speed on the desired learning results is discussed. The threshold plays a key role in image processing. Considering that the difference between the water droplet edge and the composite insulator surface is relatively small, the asymptotic semi-soft threshold function is used in pretreatment, whereas the adaptive two-dimensional Otsu’s method is used in image segmentation. The experimental results show that the proposed method has high recognition accuracy up to 94.8% for a diversity of images, and it is superior to the improved Shape Factor Method, the Multi-fractal Method, and the RBF Neural Network.