bluuebunny/crossref_metadata_2025 huggingface dataset:
Về một thuật toán gia tăng tìm tập rút gọn của bảng quyết định không đầy đủ
Authors: Giang Nguyễn Long , Hà Phạm Minh Ngọc , Thiện Nguyễn Văn , Quảng Nguyễn Bá
Published: July 2019

Mô hình tập thô dung sai là công cụ hiệu quả giải quyết bài toán rút gọn thuộc tính trên bảng quyết định không đầy đủ. Trong mấy năm gần đây, các nhà nghiên cứu đã đề xuất một số thuật toán gia tăng tìm tập rút gọn theo tiếp cận tập thô dung sai nhằm giảm thiểu thời gian thực hiện. Tuy nhiên, các thuật toán đề xuất đều theo hướng tiếp cận lọc truyền thống, nghĩa là bước kiểm tra độ chính xác phân lớp độc lập với bước tìm tập rút gọn. Do đó, tập rút gọn tìm được chưa tối ưu cả về số lượng thuộc tính và độ chính xác phân lớp. Trong bài báo này, chúng tôi đề xuất thuật toán gia tăng IDS_IFW_AO tìm tập rút gọn theo tiếp cận lai ghép lọc – đóng gói sử dụng độ đo khoảng cách. Kết quả thử nghiệm trên các tập dữ liệu mẫu cho thấy, thuật toán lai IDS_IFW_AO hiệu quả hơn thuật toán lọc IARM-I về độ chính xác phân lớp và số thuộc tính tập rút gọn.
Regeneration Process of The Prosperous Justice Party (PKS) to Maintain Its Existence by Election Year 2014
Authors: Djuyandi Yusa , Sodikin Fifi Lutfiah
Published: July 2019

Political parties prepare prospective national leaders through a political recruitment process. The Prosperous Justice Party (PKS), one of the Islamic parties In Indonesia, has a Regional Leadership Council (DPD) in each district or city.  Regional Leadership Council (DPD) of Bandung City is interesting to study since it has a unique regeneration process and the organizations (under brow) have scored excellent cadres. This study aims to analyze the regeneration process of DPD PKS at Bandung City to maintain its existence in the 2014 election using the theory of political recruitment through the regeneration pathway proposed by Almond and Powell. The research was a qualitative method with data collection techniques carried out through secondary data collected by the General Elections Commission (KPU) of Bandung City. The primary data collected from PKS cadre interview process. This study found that the DPD PKS regeneration process of Bandung City affected the quality of promoted cadre, thus influencing the quality and existence of the party. The process of regeneration has produced excellent cadres through education and training stages that make it exist.
PERANAN LABORATORIUM FORENSIK DALAM MENGUNGKAP TINDAK PIDANA PADA TINGKAT PENYIDIKAN
Authors: Rachmad Andi
Published: July 2019

Pembuktian merupakan hal yang utama dalam pemeriksaan dan penindakan setelah terjadinya perkara pidana. Hal ini karena melalui tahapan pembuktian terjadi suatu proses, cara, perbuatan membuktikan untuk menunjukkan benar atau salahnya si terdakwa terhadap suatu perkara pidana khususnya di dalam sidang pengadilan. Peran Laboratorium Forensik Polri sebagai ahli di bidangnya sesuai Pasal 7 ayat (1) huruf h dan Pasal 120 ayat (1) KUHAP dalam pengolahan Tempat Kejadian Perkara (TKP) dengan penerapan metode scientific crime investigation (SCI). Implementasi SCI/Kriminalistik/Forensik dalam olah TKP merupakan jaminan mutu (Quality Assurance) dan kendali mutu (Quality control). Dalam pelaksanaan olah TKP, implementasi tersebut berperan penting terhadap proses menciptakan keyakinan hakim guna penetapan putusan peradilan dan merupakan alat bukti yang sah tidak terbantahkan karena berdasarkan kaidah-kaidah ilmiah. Beberapa hambatan yang dihadapi oleh penyidik dalam upaya pemeriksaan alat bukti terhadap tindak pidana yaitu: jarak lokasi dari daerah ke Labolatorium Forensik Cabang yang jauh, terbatasnya biaya operasional penyelidikan dan penyidikan, serta kurangnya jumlah sarana dan prasarana yang diperlukan.
复杂地质条件下铁路隧道施工技术探讨
Authors: 吴 萌
Published: July 2019

交通行业的发展是社会发展的突出表现之一。近年来，国家加大了对铁路建设事业的投入力度，铁路建设取得了显著成就。铁路施工经常遇到复杂的地质条件，在这种情况下进行隧道施工难度很大，对施工技术也有较高要求。因此，施工单位应当重视复杂地质条件下的铁路隧道施工技术研究，根据实际情况采取合适的施工技术方法，加强技术管理，从而顺利完成施工任务。
建筑产品设计中的成本控制方法
Authors: 邸 军棉
Published: July 2019

在国内社会经济迅猛发展的影响下，使得国内各个行业得到了明显的进步，尤其是在国内的建筑行业中，进步程度更加的明显。怎样切实的实施成本控制工作是现如今开发商最为重视的问题。这篇文章围绕建筑产品设计环节中的成本控制工作展开深入的研究分析，并从中找到控制设计工作中对成本造成影响的各个因素。
浅谈GPS辅助基坑土方开挖施工工法
Authors: 李 占民
Published: July 2019

当前我国传统的基坑土方开挖测量多采用经纬仪+钢尺或全站仪再配合水准仪的施工工艺，基坑土方开挖测量传统的施工工艺是:先用经纬仪+钢尺或全站仪建立场区控制网，然后定位建筑物轴线点最后根据开挖深度及放坡角度确定起坡线及坡底线，开挖过程中配合水准仪控制开挖深度。施工过程中，参与使用仪器多，人员配合密切，对场地平整通视条件要求高，夜间无法施工，施工效率低、人力资源投入大，容易出错，机械施工中质量控制能力低。平面定位仪器需配合水准仪使用，投入仪器设备种类多。在工程实践中不断总结，结合现代高端仪器衍生出来的GPS辅助基坑土方开挖施工工法，具有高效施工、单人操作、不易出错、随时控制土方开挖质量，单站操作平面高程一起测量，测量不受时间控制，可以黑天、白天工作，不受场地通视限制，可控制多作业面同时施工，开创了新的施工工法，有较大的推广应用前景。本方法根据开挖方案，提前在图上确定开挖边线，确定各起坡线或坡底线的拐点，利用GPS-RTK定位系统直接在现场进行点（线）放样并对开挖情况实时测量同时控制开挖深度。采用该工法施工虽然增加前期工作，需要确定开挖边界线的坐标，内业工作多，需要仔细认真并需要第二人员复合，但是外业具体现场指导开挖作业时，可单人操作省时省力满足施工要求。
浅谈地基基础加固的复合注浆技术
Authors: 陈 利
Published: July 2019

地基结构在整个建筑工程中地基结构的作用是非常重要的，可以说与项目工程的质量存在直接的联系，针对地基结构实施加固的技术在社会科技迅猛发展的带动下也不断的优化完善创新，进而大量的新型技术被研发出来。这篇文章围绕复合注浆技术这一新型技术展开分析研究，希望对地基结构加固工程的发展有所助益。
华龙一号穹顶吊装施工工期优化研究
Authors: 葛 莹
Published: July 2019

防城港二期项目3号机组是中广核华龙一号的首堆工程，针对华龙一号3号机组穹顶吊装关键路径、施工工期进行研究、总结和优化，对后续项目进度、前期准备工作开展、施工组织等方面提供有价值的参考。
建筑钢结构工程及焊缝无损检测技术应用探究
Authors: 张 斌 , 邢 毅斌
Published: July 2019

我国城市化进程的稳步推进，各种高层建筑拔地而起，建筑结构形式已经不仅仅只是再局限于钢筋混凝土这一种。钢结构作为一种新型化的建筑结构形式，有着十分显著的结构特性。钢构材料有着高强度的特性，可以有效承受较大的载负荷，且抗震性能优异，进行制作安装之时也有着十分典型的高效化优势，将之应用于高层建筑的施工建设过程中优势价值将会体现的更加显著。但同时也应认识到要确保整体建筑结构能够达到较高的安全性，就必须针对钢结构的焊缝质量加强安全检测。
某高速公路大型滑坡工程治理设计
Authors: 王 开源
Published: July 2019

在我国云贵高原地区进行高速公路，由于地形地质条件都极为复杂，极易发生滑坡等地质灾害，造成巨大的生命财产损失，带来无法估量的后果。文章以云南省某高速某滑坡为例，调查分析了滑坡工程区的地形地质概况，滑坡发展历史，并对滑坡进行了分区处治，采用slide软件进行滑坡稳定性计算，为支护设计提供了支撑，为类似工程问题提供借鉴。
水利工程中混凝土施工技术要点思考
Authors: 姚 兆仁
Published: July 2019

在我国历来的发展阶段中，水利工程就一直起着至关重要的作用，可以说事关国计民生和人民百姓的幸福安全问题，因而必须严肃对待。而混凝土在水利工程中发挥着不可小觑的作用，也越来越受到人们的重视。基于此，主要结合混凝土施工技术现状，分析了水利工程中混凝图施工出现的问题，并对解决措施进行了深入论述。
航空业务量预测方法及应用研究
Authors: 王 雨晨
Published: July 2019

作者结合多年的工作经验与实际工作方法，对航空业务量预测计算方法进行了研究分析，文章主要介绍了全国各大省会机场为研究对象，研究机场航空业务量预测方法的运用情况，从总体情况、典型方法、分区域预测等方面进行归纳总结，分析预测方法与实际业务量的偏差情况。
双相不锈钢S32101焊接工艺优化
Authors: 孟 祥刚
Published: July 2019

对AP1000乏燃料水池采用的双相不锈钢ASTM A240 UNS S32101的焊接工艺进行研究分析，分别采用焊条电弧焊(SMAW)，药芯焊丝气保焊(FCAW)及熔化极气保焊（GMAW）,进行相应的焊接工艺评定工作，对比不同焊接方法的焊缝力学性能，生产效率，焊接质量，生产成本，选出适用于生产施工的最佳焊接工艺。
转动设备无应力配管技术要点探究
Authors: 陈 炳男
Published: July 2019

文章中主要介绍动设备无应力配管，在管道预制过程中需要注意的问题，及管道安装过程中的注意事项，来降低工艺配管产生的应力，从而满足动设备运行要求。希望对以后的工作能有所帮助。
无线传感器自动监测系统在高支模监测中的应用
Authors: 张 学明
Published: July 2019

采用无线传感器自动监测系统对高支模进行监测比传统的光学监测仪器及有线传感器安装更简便快捷，精度高，性能稳定，获取数据更快，监测频率高，可真正实现对高支模的实时监测，有效地保证了高支模施工的安全。
Stressors perceived by the clinical undergraduate medical students towards the end of course
Authors: Habib Md. Ahsan , Rahman Md. Azizur , Manara Amju , Ayub Mahmuda , Begum Nasrin , Hossain Sharmin
Published: July 2019

Response or reaction of the mind to the pressure of life is stress. Medical students of Bangladesh are in stress to meet the demands of the curriculum. This study was conducted on the regularly passed final year students of a medical college to find out the nature of stresses perceived by them. The response was collected on a validated structured set of questionnaire, 3 weeks prior to the University level summative examination and 63 students (33 male and 30 female) participated in the study. Stress was expressed in five levels and scored as 0 to 4. Academic related factors were identified as maximum stress provoking (2.5 ± 1.3) than group activity (1.6 ± 1.4), drive (1.4 ± 1.5), teaching-learning (2.3 ± 1.3), personnel (1.8 ± 1.6) or social (1.9 ± 1.5) related factors. Of that group of stress, ‘falling behind reading schedule’ and ‘large amount of content to be learned’ were revealed as heavy stressors. Examination was identified as a severe stressor in 42.4% male, but was marked less (16.7%) in the female. ‘Too much restriction in the campus’ was observed as heavy stressors among the factors other than the academic related stressors. Students may be motivated to develop a coping strategy for academic and teaching-learning related stress.
A 6-month-old boy presented with progressive jaundice, dark urine and generalized pruritus for one month
Authors: Akter Hazera , Mojumder Md. Wahiduzzaman , Karim A. S. M. Bazlul , Kamal Mohammed , Nahar Kamrun , Benzamin Md.
Published: July 2019

This article has no abstract. The first 100 words appear below:
A 6-month-old boy of non-consanguineous parents admitted to the Department of Pediatric Gastroenterology with the complaints of progressive jaundice, dark urine and generalized pruritus for one month. The boy was well up to five months of age. Then he developed jaundice which was progressive in nature with intermittent pale colored stool along with dark urine. His mother also complaints for generalized pruritus which was severe in intensity (disturbing sleep and daily activities) without any diurnal variations. There was no history of sib death or family history of a similar type of illness.
FERNÁNDEZ LÓPEZ, O.; ORTIZ, J.; CEREZO, C. Diccionario de mujeres en las artes visuales y la arquitectura. Córdoba
Authors: Luque Rodrigo Laura
Published: July 2019

Reseña sobre el libro Fernández López, O.; Ortiz, J.; Cerezo, C. (2019) Diccionario de mujeres en las artes visuales y la arquitectura. Córdoba. Fundación Provincial de Artes Plásticas Rafael Botí, Diputación Provincial de Córdoba.
INAH: 80 años. El futuro de nuestra memoria
Authors: Prieto Hernández Diego
Published: July 2019

El Instituto Nacional de Antropología e Historia (INAH) nació por decreto del presidente Lázaro Cárdenas el 3 de febrero de 1939, con la encomienda de investigar, preservar y difundir el patrimonio paleontológico, arqueológico, antropológico e histórico mexicano, y formar especialistas en las disciplinas de su competencia. Es heredero de lo más granado del pensamiento ilustrado novohispano, de los afanes decimonónicos y constitucionalistas por proteger el patrimonio cultural, y de las grandes reformas sociales de la posrevolución mexicana que se concretaron en el periodo cardenista.
El Manifiesto de Boadilla. Todas a una con el patrimonio cultural
Authors: Torija López Alicia
Published: July 2019

El documento surge tras el encuentro de una treintena de asociaciones y entidades cívicas de defensa del patrimonio cultural de toda España, que tuvo lugar en Madrid en octubre de 2018. Las Jornadas de Patrimonio Cultural y Sociedad organizadas por Madrid, Ciudadanía y Patrimonio y SOS Monuments resultaron una oportunidad de compartir experiencias y afrontar nuevos retos, desde la firme creencia de que la participación ciudadana en defensa del patrimonio cultural no sólo supone un ejercicio de calidad democrática, sino que, sobre todo, afianza los lazos afectivos hacia nuestra memoria y nuestra cultura.
La Universidad de Granada divulga la práctica trashumante desde la vivencia
Authors: Acuña Delgado Ángel
Published: July 2019

Con el curso Trashumancia: Los caminos del pastoreo itinerante. Conocimiento práctico de un patrimonio cultural, celebrado a principios de junio, los estudiantes de la Universidad de Granada han tenido la ocasión de conocer de cerca la práctica trashumante. Organizado por el Centro Mediterráneo, convalidable por 6 créditos ECTS, un grupo de 12 estudiantes acompañaron durante cinco jornadas al rebaño de los hermanos Pérez, pernoctando en el campo y ayudando en todas las faenas propias de esta actividad.
Breve síntesis ¿Están el patrimonio y la cultura en la agenda de las ciudades del futuro?
Authors: Del Espino Hidalgo Blanca , Merinero Rodríguez Rafael
Published: July 2019

El Debate número 13 de la revista PH plantea una discusión abierta y crítica sobre en qué manera y medida el patrimonio cultural interviene, ya sea como objeto, como herramienta o como recurso, en las políticas urbanas, culturales y territoriales más recientes, presentes y futuras.
Aklimasi Notochelys platynota yang akan dilepas di area target konservasi kura-kura Universitas Bengkulu
Authors: Tanjung Rica Yuniar , Ruyani Aceng
Published: July 2019

ABSTRACT[Acclimation Notochelys platynota That  Will Be In Conservation In Area Ex Situ  Bengkulu University]. The aim of this research is to know  the effect of water pool in conservation target area to growth rate of N. platynota which will be released in conservation area of turtle of Bengkulu University. At the data collection stage, the pool water concentration is used P1: 100% pool water, P2: 75% pool water + 25% water well, P3: 50% pool water + 50% water well, P4: 25% pond water + 75% water Wells, P5: 100% well water. The data analyzed were weight growth rate, carapace length growth rate, growth rate of carapace width, body weight growth rate. The result is giving 100% of pool water in conservation target area of University of Bengkulu able to increas growth of N. Platynota.Keywords: Acclimation;  N. platynota, Growth;  Conservation Area; turtles.(Received November 19, 2018; Accepted April 15, 2019; Published June 18, 2019) ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh pemberian air kolam di area target konservasi terhadap  laju pertumbuhan  N. platynota  yang akan dilepas di area target konservasi kura-kura Universitas Bengkulu. Pada tahap pengumpulan data digunakan konsentrasi air kolam yaitu P1: 100 % air kolam, P2: 75% air kolam + 25% air sumur, P3: 50% air kolam + 50% air sumur, P4 : 25% air kolam + 75% air sumur, P5: 100% air sumur. Data yang dianalisis adalah laju pertumbuhan berat badan,  laju pertumbuhan panjang karapaks, laju pertumbuhan lebar karapaks dan  laju pertumbuhan tebal badan.. Hasil adalah pemberian 100% air kolam di area target konservasi Universitas Bengkulu mampu meningkatkan pertumbuhan  N. Platynota.Kata kunci: Aklimasi; N. platynota; Pertumbuhan; Area Konservasi; kura-kura.
Jurnal Pendipa Tahun 2019 Volume 3 Nomor 2
Authors: Pendipa Jurnal
Published: July 2019

Kata Pengantar dan Susunan Redaksi Jurnal Pendipa Tahun 2019 Volume 3 Nomor 2.
Pemanfaatan Karbon Baggase Teraktivasi Untuk Menurunkan Kadar Logam Tembaga Pada Limbah Kerajinan Perak Di Lombok Tengah
Authors: Indah Dahlia Rosma , Safnowandi Safnowandi
Published: July 2019

Copper metal levels in silver craft waste can cause health problems in humansand pollute the surrounding environment. One method of processing wastewateris the adsorption technique using activated carbon dioxide. The first step is tofirst determine the copper metal content in silver handicraft waste in UnggaVillage, Central Lombok. Furthermore, the waste water is contacted withactivated carbon. The production of activated bagasse carbon consists of threestages, namely first dehydration by burning bagasse until it turns into carbon,second carbonation which is heating temperature of 500ºC, carbon yields of 100-200 mesh and third, activation by immersing 50 grams of carbon in 500 mL 15%NaOH during 12 hours. After that the carbon is dried at 110ºC and finally heatedat 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL ofwaste water sample with a mass of 2 grams of adsorbent. The sample is thenstirred at various contact times of 30, 60, 90, 120 and 150 minutes at a speed of180 rpm using a batch system. The optimum contact time and concentration areused to calculate the efficiency of decreasing copper metal content by calculatingthe difference in copper metal content before adsorption and after adsorptionusing activated carbon dioxide. The concentration of all Cu (II) metals wasanalyzed using Atomic Absorption Spectrophotometer (AAS). From the researchit was found that the copper metal content in the sample was 14.5710 ppm. Theoptimum contact time for copper metal adsorption is at 120 minutes contact timewhich results in optimum adsorption efficiency in ferrous metals, namely84.88%.
Pengaruh Waktu Adsorpsi Minyak Jelantah Sebagai Bahan Pembuatan Biodiesel Dengan Tanah Liat Terhadap Kualitas Biodiesel
Authors: Ahmadi Ahmadi , Suyanti Ika , Tikrahsari Sri Astuti , Aini Miftahul
Published: July 2019

Population growth and industrial development cause oil fuel consumptionincreases, so availability will thinning because it cannot be renewed. So toovercome that the government issued Presidential Decree No.10 of 2006concerning Development of Vegetable Fuels. Biodiesel is one of themrenewable alternative energy sources which are processed from vegetable oilswith use alcohol and NaOH as catalysts through the transesterificationprocess. Used cooking oil is one source of vegetable oil that can used as rawmaterial for making biodiesel through the process transesterification. But theuse of used cooking oil directly without through the adsorption process willaffect the quality of the biodiesel produced. The purpose of this study is todetermine the effect of adsorption time used cooking oil for the quality ofbiodiesel produced from used cooking oil. This research aimed to know thereis or no effect of odsorption time of cooking oil using the clay towardsbiodiesel quality. Object of this research used cooking oil which is adsorptedwith varieties time of adsorption was 0 hour (Control), 12 hours, 36 hoursand 48 hours. Based on the result of research showed that adsorption timehas effect towards quality, where high adsorption time was 12 hours. Qualityof biodiesel has been suitable with SNI. The quality was dencity 0,860 gr/cm3,water degree 0,035% vol, flame coordinate 170oC and acid number 0,71 mgKOH/g oil % the result of biodiesel 55,29%.
Diagnosis Kesulitan Penyelesaian Soal Matematika Pokok Bahasan Pecahan pada Siswa SD Muhammadiyah 2 Kota Sorong
Authors: Arsyad Rahmatullah Bin , Hakim Abdul
Published: July 2019

Penelitian ini dilakukan dikarenakan banyak siswa yang mengalami kesulitan dalam belajar. Hal ini dilihat dari nilai tugas dan ulangan siswa, semakin tinggi kelasnya maka semakin rendah nilainya. Penelitian ini bertujuan untuk mengetahui (1) Jenis-jenis kesulitan yang dialami oleh siswa dalam menyelesaian soal pokok bahasan pecahan dan cara mengatasinya (2) Penyebab kesulitan penyelesaian soal matematika pada siswa dalam menyelesaian soal pokok bahasan pecahan. Penelitian ini adalah Penelitian Deskriptif yang menjelaskan data dari hasil penelitian. Subyek penelitian ini adalah seluruh siswa kelas V SD Muhammadiyah 2 Kota Sorong tahun ajaran 2015/2016 yang terbagi menjadi dua kelas yaitu kelas VA terdiri dari 31 siswa dan Kelas VB terdiri dari 28 siswa. Penelitian ini untuk mendiagnosis kesulitan penyelesaian soal matematika pokok bahasan pecahan. Langkah mendiagnosis adalah sebagai berikut : (1) Data deskriptif diperoleh melelui tes pecahan, wawancara, angket dan dokumentasi (2) Data kuantitatis dan kualitatif diperoleh melalui angket dan jawaban siswa dalam tes pecahan. Penyebab kesalahan siswa dalam menyelesaikan soal matematika pokok bahasan pecahan adalah kesalahan dalam memahami konsep sebesar 45%, kesalahan dalam menerima informasi sebesar 48% dan kesalahan dalam menghitung sebesar 46%. Presentase kesalahan tersebut tergolong kurang sehingga kemampuan yang dimiliki siswa rendah.
Diseño de un controlador LQG para un helicóptero de tres grados de libertad
Authors: González Acevedo Hernando , Guerrero Gómez Yosman Alexis
Published: July 2019

El artículo presenta el diseño de un controlador lineal cuadrático gaussiano (LQG) para regular los ángulos de elevación, cabeceo y viaje de un prototipo de un helicóptero de tres grados de libertad (3 DOF). El controlador LQG se ajusta en base del modelo matemático no lineal y se evalúa la respuesta transitoria del sistema en lazo cerrado para diferentes valores de la señal de referencia, ajustando los parámetros del controlador con el objetivo de estabilizar el sistema, disminuir el sobrepaso y el tiempo de establecimiento. La validación experimental de la estrategia de control se realiza sobre un prototipo construido por los autores, la respuesta transitoria de los datos simulados se compara con los datos experimentales, para los tres grados de libertad del helicóptero, observando que el modelo matemático se ajusta a la dinámica del prototipo y se cumplen las condiciones de diseño.
PENINGKATAN KEMAMPUAN MENENDANG DENGAN KAKI BAGIAN DALAM PERMAINAN SEPAKBOLA MELALUI VARIASI LATIHAN
Authors: Maidalina Maidalina
Published: July 2019

The problem in this study is the low willingness of students to take part in learning soccer games so that most students do not master the basic techniques of playing football, especially in kicking with the inner leg, of 20 students only around 35% - 45% who are able to kick with the inner leg is good and the rest still have not reached the minimum classical completeness that has been determined which is 77, besides that many students pay less attention when the teacher explains the technical material in the game of football. The purpose of this study was to improve the ability to kick with the inner leg of a student's soccer game. The results showed that the average value of the ability of students before the cycle was categorized as quite competent with the percentage of completeness 70.82% (35.00%, complete 7 people). In the first cycle kicking with the inner leg using a variety of exercises the average ability of students increases with the competent category with the percentage of completeness 77.48% (60.00%, complete 12 people), it shows that students like the variety of exercises taught by the teacher, but the value the average has not reached the specified completeness which is 80%. While in the second cycle the average ability of students was categorized as competent with a percentage of completeness of 87.13% (90.00%, completed 18 people) which showed that classical completeness had been achieved which was determined in this study, namely 80%. This means that the method of effective training variations to improve the ability to kick with the inner leg of the football game of class V-B even semester SDN 004 Teratak Buluh.
Early Detection of Zymoseptoria tritici in Winter Wheat by Infrared Thermography
Authors: Wang Yuxuan , Zia-Khan Shamaila , Owusu-Adu Sebastian , Miedaner Thomas , Müller Joachim
Published: July 2019

The use of thermography as a means of crop water status estimation is based on the assumption that a sufficient amount of soil moisture enables plants to transpire at potential rates resulting in cooler canopy than the surrounding air temperature. The same principle is applied in this study where the crop transpiration changes occur because of the fungal infection. The field experiment was conducted where 25 wheat genotypes were infected with Zymoseptoria tritici. The focus of this study was to predict the onset of the disease before the visual symptoms appeared on the plants. The results showed an early significant increase in the maximum temperature difference within the canopy from 1 to 7 days after inoculation (DAI). Biotic stress associated with increasing level of disease can be seen in the increasing average canopy temperature (ACT) and maximum temperature difference (MTD) and decreasing canopy temperature depression (CTD). However, only MTD (p ≤ 0.01) and CTD (p ≤ 0.05) parameters were significantly related to the disease level and can be used to predict the onset of fungal infection on wheat. The potential of thermography as a non-invasive high throughput phenotyping technique for early fungal disease detection in wheat was evident in this study.
Classification of Groundwater Suitability for Irrigation in the Ulagalla Tank Cascade Landscape by GIS and the Analytic Hierarchy Process
Authors: Kumari M.K.N. , Sakai Kazuhito , Kimura Sho , Yuge Kozue , Gunarathna M.H.J.P.
Published: July 2019

The tank cascade system (TCS) has been used for over 2000 years for water management in Sri Lanka. Since surface water is limited in the dry zone of Sri Lanka, agricultural production, especially of upland crops, relies on groundwater for irrigation. We sampled 29 wells in the Ulagalla cascade, a prominent TCS near Anuradhapura city in the dry zone of Sri Lanka, in Yala (dry) and Maha (wet) seasons, the two main cropping seasons in Sri Lanka. We evaluated the suitability of groundwater for irrigation using the analytic hierarchy process and geographical information system. Water quality did not vary notably between seasons. However, it deteriorated with the onset of high intensity heavy rain, especially during the Maha season. A water quality zoning map indicated that groundwater in 4% and 96% of the study area is suitable and moderately suitable for irrigation, respectively. Irrigation water quality in tank cascade landscapes and similar environments can be assessed using this methodology and our results.
Antioxidant Activities and Total Phenolic Content of Malaysian Herbs as Components of Active Packaging Film in Beef Patties
Authors: Wan Yahaya Wan Amnin , Abu Yazid Noraziah , Mohd Azman Nurul Aini , Almajano María Pilar
Published: July 2019

Active packaging containing natural extracts is a promising innovation to prolong the shelf life of perishable food. The objective of this work was to develop a bioactive edible film from semi-refined carrageenan (SRC) and glycerol (G) as plasticizer incorporated with natural extract. Five Malaysian herbs were evaluated to determine their total phenolic content (TPC) and antioxidant activities. The Persicaria minor (PM) extract demonstrated the highest TPC (1.629 mg GAE/L sample) and radical scavenging activity evaluated by the radicals 2,2’-azinobis [3-ethylbenzothiazoline-6-sulfonic acid] (27.166 mg TE/L sample), 2,2-diphenyl-1-picrylhydrazyl (719.89 mg eq. Trolox/L sample) and α,α′-Azodiisobutyramidine dihydrochloride (5.81 mg TE/L sample). Thus, PM extract was selected for active packaging film at concentrations of 0.4, 1.0 and 2.0% and compared with 0.4% Butylatedhydroxianisole in 2% SRC and 0.9% G film formulation. The meat patties were wrapped in the films and stored under refrigeration (4 ± 2 °C) for 14 days. The film with 2% PM exhibited significantly lower lipid deterioration analysed by the thiobarbituric acid reactive substance assay (p < 0.05) and small changes in % metmyoglobin value which indicated the minimum development of brown colour (p < 0.05). Hence, this film can be used as a packaging material to improve meat quality characteristics.
Application Study of Adaptive Tracking Algorithm in Active Noise Control System of Transformer
Authors: Ying Liming , Wang Jinwei , Liu Qin , Wang Donghui
Published: July 2019

Active noise control (ANC) technology can be able to reduce the low frequency noise effectively, and has been widely applied in limited enclosed equipment, such as cars, aircraft cockpits, and headphones, etc. Compared with the traditional noise reduction methods, ANC technology is a cost-effective method in handling the low-frequency noise of transformers. An experimental ANC system in a virtual substation is designed and constructed. An adaptive signal tracking ANC algorithm is proposed, and a set of ANC experimental prototypes applied to a virtual substation is designed. Based on the proposed algorithm, the distributions of the acoustics and spectral characteristics of transformer noise in substations are analyzed. Experimental results show that the effective noise reduction can be achieved an average of 5 dB(A) in a given region with respect to the absence of the ANC system.
Multi-Walled Carbon Nanotubes
Authors: Morais Simone
Published: July 2019

Since their discovery, multi-walled carbon nanotubes (MWCNTs) have received tremendous attention because of their unique electrical, optical, physical, chemical, and mechanical properties [...]
Variational Autoencoder-Based Multiple Image Captioning Using a Caption Attention Map
Authors: Kim Boeun , Shin Saim , Jung Hyedong
Published: July 2019

Image captioning is a promising research topic that is applicable to services that search for desired content in a large amount of video data and a situation explanation service for visually impaired people. Previous research on image captioning has been focused on generating one caption per image. However, to increase usability in applications, it is necessary to generate several different captions that contain various representations for an image. We propose a method to generate multiple captions using a variational autoencoder, which is one of the generative models. Because an image feature plays an important role when generating captions, a method to extract a Caption Attention Map (CAM) of the image is proposed, and CAMs are projected to a latent distribution. In addition, methods for the evaluation of multiple image captioning tasks are proposed that have not yet been actively researched. The proposed model outperforms in the aspect of diversity compared with the base model when the accuracy is comparable. Moreover, it is verified that the model using CAM generates detailed captions describing various content in the image.
Review on Retrospective Procedures to Correct Retinal Motion Artefacts in OCT Imaging
Authors: Sánchez Brea Luisa , Andrade De Jesus Danilo , Shirazi Muhammad Faizan , Pircher Michael , van Walsum Theo , Klein Stefan
Published: July 2019

Motion artefacts from involuntary changes in eye fixation remain a major imaging issue in optical coherence tomography (OCT). This paper reviews the state-of-the-art of retrospective procedures to correct retinal motion and axial eye motion artefacts in OCT imaging. Following an overview of motion induced artefacts and correction strategies, a chronological survey of retrospective approaches since the introduction of OCT until the current days is presented. Pre-processing, registration, and validation techniques are described. The review finishes by discussing the limitations of the current techniques and the challenges to be tackled in future developments.
Rapid Measurement and Identification Method for the Geometric Errors of CNC Machine Tools
Authors: Li Xinghua , Yang Xiaohuan , Gao Lingyu , Su Zhikun , Wei Xuan , Lv Zekui , Liang Jiaqi , Li Haopeng , Fang Fengzhou
Published: July 2019

Error compensation technology offers a significant means for improving the geometric accuracy of CNC machine tools (MTs) as well as extending their service life. Measurement and identification are important prerequisites for error compensation. In this study, a measurement system, mainly composed of a self-developed micro-angle sensor and an L-shape standard piece, is proposed. Meanwhile, a stepwise identification method, based on an integrated error model, is established. In one measurement, four degrees-of-freedom errors, including two-dimensional displacement and two-dimensional angle of a linear guideway, can be obtained. Furthermore, in accordance with the stepwise identification method, the L-shape standard piece is placed in three different planes, so that the measurement and identification of all 21 geometric errors can be implemented. An experiment is carried out on a coordinate measuring machine (CMM) to verify the system. The residual error of the angle error, translation error and squareness error are 1.5″, 2 μm and 3.37″, respectively, and these are compared to the values detected by a Renishaw laser interferometer.
Different Roles of Water Vapor Transport and Cold Advection in the Intensive Snowfall Events over North China and the Yangtze River Valley
Authors: Xie Zhixing , Sun Bo
Published: July 2019

Intensive snowfall events (ISEs) have a profound impact on the society and economy in China during winter. Considering that the interaction between northerly cold advection and southerly water vapor transport (WVT) is generally an essential condition for the occurrence of ISEs in eastern China, this study investigates the different roles of anomalous southerly WVT and northerly cold advection during the ISEs in the North China (NC) and Yangtze River valley (YRV) regions based on a composite analysis of seventy ISE cases in NC and forty ISE cases in the YRV region from 1961 to 2014. The results indicate that the ISEs in NC are mainly associated with a significant pre-conditioning of water vapor over NC induced by southerly WVT anomalies over eastern China, whereas the ISEs in the YRV region are mainly associated with a strengthened Siberian High (SH) and strong northerly cold advection invading the YRV region. These results suggest a dominant role of anomalous southerly WVT in triggering the ISEs in NC and a dominant role of northerly cold advection in triggering the ISEs in the YRV region. The different roles of anomalous southerly WVT and northerly cold advection in the ISEs over the NC and YRV regions are largely attributed to the different winter climate in the NC and YRV regions—during winter, the NC (YRV) region is dominated by cold and dry (relatively warm and moist) air flow and hence southerly WVT (northerly cold advection) is the key factor for triggering the ISEs in NC (the YRV region).
Cowan Code: 50 Years of Growing Impact on Atomic Physics
Authors: Kramida Alexander
Published: July 2019

The famous Cowan’s book, “The Theory of Atomic Structure and Spectra”, published in 1981, and his suite of computer codes based on it, continue to be highly influential in atomic physics and many other research areas. As of September 2018, there have been more than 5000 citations to Cowan’s book and codes, and each year adds about 150 citations to this list. The present work briefly describes what these codes do and why they are responsible for most of the current progress in the analyses of atomic spectra. Various modifications of these codes, including my own, will also be described.
Dual Numbers and Operational Umbral Methods
Authors: Behr Nicolas , Dattoli Giuseppe , Lattanzi Ambra , Licciardi Silvia
Published: July 2019

Dual numbers and their higher-order version are important tools for numerical computations, and in particular for finite difference calculus. Based on the relevant algebraic rules and matrix realizations of dual numbers, we present a novel point of view, embedding dual numbers within a formalism reminiscent of operational umbral calculus.
Methodological Approaches to End-Of-Life Modelling in Life Cycle Assessments of Lithium-Ion Batteries
Authors: Nordelöf Anders , Poulikidou Sofia , Chordia Mudit , Bitencourt de Oliveira Felipe , Tivander Johan , Arvidsson Rickard
Published: July 2019

This study presents a review of how the end-of-life (EOL) stage is modelled in life cycle assessment (LCA) studies of lithium-ion batteries (LIBs). Twenty-five peer-reviewed journal and conference papers that consider the whole LIB life cycle and describe their EOL modelling approach sufficiently were analyzed. The studies were categorized based on two archetypal EOL modelling approaches in LCA: The cutoff (no material recovery, possibly secondary material input) and EOL recycling (material recovery, only primary material input) approaches. It was found that 19 of the studies followed the EOL recycling approach and 6 the cutoff approach. In addition, almost a third of the studies deviated from the expected setup of the two methods by including both material recovery and secondary material input. Such hybrid approaches may lead to double counting of recycling benefits by both including secondary input (as in the cutoff approach) and substituting primary materials (as in the EOL recycling approach). If the archetypal EOL modelling approaches are not followed, it is imperative that the modelling choices are well-documented and motivated to avoid double counting that leads to over- or underestimations of the environmental impacts of LIBs. Also, 21 studies model hydrometallurgical treatment, and 17 completely omit waste collection.
Drying Optimisation to Obtain Carotenoid-Enriched Extracts from Industrial Peach Processing Waste (Pomace)
Authors: Lalas Stavros , Alibade Aggeliki , Bozinou Eleni , Makris Dimitris P.
Published: July 2019

In this study, peach pomace (PP) moisture reduction using conventional oven-drying was investigated by implementing the Box-Behnken experimental design, considering two major process variables, time—t and temperature—T. The purpose was the optimisation of the process to obtain PP extracts as rich as possible in total carotenoids (TCn). It was shown that effective moisture removal up to a final level of approximately 24%, could be achieved after 8.27 h (496 min) at 70 °C. Under these optimised drying conditions, the maximum carotenoid yield was 84.57 ± 8.56 μg CtE g−1 dm. This yield was by almost 63% lower than that achieved using fresh (non-dried) samples. Temperatures higher than 70 °C were demonstrated to be even more detrimental in this regard, yet from the model built, it was made clear that prolonged drying time may bring about a more pronounced negative effect on the total carotenoid yield. The drop in total carotenoid content of PP as a result of drying was accompanied by a significant decline in the antiradical activity of PP extracts.
The Zinc Transporter Zip7 Is Downregulated in Skeletal Muscle of Insulin-Resistant Cells and in Mice Fed a High-Fat Diet
Authors: Norouzi Shaghayegh , Adulcikas John , Henstridge Darren , Sonda Sabrina , Sohal Sukhwinder , Myers Stephen
Published: July 2019

Background: The zinc transporter Zip7 modulates zinc flux and controls cell signaling molecules associated with glucose metabolism in skeletal muscle. The present study evaluated the role of Zip7 in cell signaling pathways involved in insulin-resistant skeletal muscle and mice fed a high-fat diet. Methods: Insulin-resistant skeletal muscle cells were prepared by treatment with an inhibitor of the insulin receptor, HNMPA-(AM)3 or palmitate, and Zip7 was analyzed along with pAkt, pTyrosine and Glut4. Similarly, mice fed normal chow (NC) or a high-fat diet (HFD) were also analyzed for protein expression of Glut4 and Zip7. An overexpression system for Zip7 was utilized to determine the action of this zinc transporter on several genes implicated in insulin signaling and glucose control. Results: We identified that Zip7 is upregulated by glucose in normal skeletal muscle cells and downregulated in insulin-resistant skeletal muscle. We also observed (as expected) a decrease in pAkt and Glut4 in the insulin-resistant skeletal muscle cells. The overexpression of Zip7 in skeletal muscle cells led to the modulation of key genes involved in the insulin signaling axis and glucose metabolism including Akt3, Dok2, Fos, Hras, Kras, Nos2, Pck2, and Pparg. In an in vivo mouse model, we identified a reduction in Glut4 and Zip7 in the skeletal muscle of mice fed a HFD compared to NC controls. Conclusions: These data suggest that Zip7 plays a role in skeletal muscle insulin signaling and is downregulated in an insulin-resistant, and HFD state. Understanding the molecular mechanisms of Zip7 action will provide novel opportunities to target this transporter therapeutically for the treatment of insulin resistance and type 2 diabetes.
Melanoma-Derived Extracellular Vesicles Bear the Potential for the Induction of Antigen-Specific Tolerance
Authors: Düchler Markus , Czernek Liliana , Peczek Lukasz , Cypryk Wojciech , Sztiller-Sikorska Malgorzata , Czyz Malgorzata
Published: July 2019

Background: Cancer-induced immunosuppression is antigen-specific rather than systemic and the mechanisms for the antigen specificity are incompletely understood. Here we explore the option that tumor-associated antigens (TAAs) may be transferred to antigen-presenting cells (APCs), together with immunosuppressive molecules, through cancer-derived small extracellular vesicles (sEVs), such as exosomes. Stimulation of a suppressive phenotype in the very same APCs that take up TAAs may yield antigen-specific tolerance. Methods: sEVs isolated from patient-derived or well-established melanoma cell lines were used to demonstrate the transfer of major histocompatibility complex (MHC) molecules to the surface of APCs. The immunosuppressive influence of sEVs was assessed by flow cytometry analysis of activation markers, cytokine expression, and mixed lymphocyte reactions. Results: MHC class I molecules were transferred from melanoma cells to the cell surface of APCs by sEVs. Concomitantly, CD86 and CD40 co-stimulatory molecules were down-regulated and IL-6 production was strongly induced. TGF-β transported by sEVs contributed to the promotion of a suppressive phenotype of APCs. Conclusion: The presented results indicate the existence of a hitherto undescribed mechanism that offers an explanation for antigen-specific tolerance induction mediated by cancer-derived sEVs.
Variable Size Twin-Rotor Wind Turbine
Authors: Doerffer Piotr , Doerffer Krzysztof , Ochrymiuk Tomasz , Telega Janusz
Published: July 2019

The paper presents a new concept of a vertical axis wind turbine. The idea is focused on small wind turbines, and therefore, the dominating quality is safety. Another important necessary feature is efficient operation at small winds. This implies an application of the drag driven solution such as the Savonius rotor. The presented concept is aimed at reducing the rotor size and the cost of implementation. A new wind turbine solution, its efficiency, and functionality are described. The results of numerical simulations being a proof of the concept are reported. The simulations were followed by wind tunnel tests. Finally several prototypes were built and investigated for a longer period of time. The new wind turbine concept has undergone various testing and implementation efforts, making this idea matured, well proven and documented. A new feature, namely, the wind turbine size reduction at strong winds, or in other words, an increase in the wind turbine size at low winds is the reason why it is difficult to compare this turbine with other turbines on the market. The power output depends not only on the turbine efficiency but also on its varying size.
Addendum: El-Leathy, A. et al. Thermal Performance Evaluation of Two Thermal Energy Storage Tank Design Concepts for Use with a Solid Particle Receiver-Based Solar Power Tower. Energies 2014, 7, 8201–8216
Authors: El-Leathy Abdelrahman , Jeter Sheldon , Al-Ansary Hany , Abdel-Khalik Said , Roop Jonathan , Golob Matthew , Danish Syed , Alrished Abdulaziz , Djajadiwinata Eldwin , Al-Suhaibani Zeyad
Published: July 2019

The authors would like to add the following note in the Affiliation Section of their paper published in Energies [...]
Energy System Modelling of Carbon-Neutral Hydrogen as an Enabler of Sectoral Integration within a Decarbonization Pathway
Authors: Evangelopoulou Stavroula , De Vita Alessia , Zazias Georgios , Capros Pantelis
Published: July 2019

This paper explores the alternative roles hydrogen can play in the future European Union (EU) energy system, within the transition towards a carbon-neutral EU economy by 2050, following the latest policy developments after the COP21 agreement in Paris in 2015. Hydrogen could serve as an end-use fuel, a feedstock to produce carbon-neutral hydrocarbons and a carrier of chemical storage of electricity. We apply a model-based energy system analysis to assess the advantages and drawbacks of these three roles of hydrogen in a decarbonized energy system. To this end, the paper quantifies projections of the energy system using an enhanced version of the PRIMES energy system model, up to 2050, to explore the best elements of each role under various assumptions about deployment and maturity of hydrogen-related technologies. Hydrogen is an enabler of sectoral integration of supply and demand of energy, and hence an important pillar in the carbon-neutral energy system. The results show that the energy system has benefits both in terms of CO2 emission reductions and total system costs if hydrogen technology reaches high technology readiness levels and economies of scale. Reaching maturity requires a significant investment, which depends on the positive anticipation of market development. The choice of policy options facilitating visibility by investors is the focus of the modelling in this paper.
Boswellia and Commiphora Species as a Resource Base for Rural Livelihood Security in the Horn of Africa: A Systematic Review
Authors: Hassan Badal Ahmed , Glover Edinam K. , Luukkanen Olavi , Kanninen Markku , Jamnadass Ramni
Published: July 2019

The dryland vegetation and particularly the Acacia-Commiphora woodlands support the livelihoods of approximately 52 million rural households in the Horn of Africa. Aromatic resins are valuable non-wood forest products (NWFPs) derived from Boswellia and Commiphora species in the drylands of this region. The study seeks to answer the following main questions: “What are the ecological and livelihood roles of resin producing species, and the role that people have in either degrading or restoring these ecosystems?” “Who are the participants in frankincense and myrrh production, processing, and trade, and how do these people interact?” “What is the current and potential future economic impact of frankincense and myrrh production and trade at the household level?” “What are the barriers to enhanced economic outcomes?” The study involves the use of PRISMA method—a systematic methodology to identify, select and analyze the recent literature on aromatic resins in relation to such factors as socio-economic situation, livelihood security, value chain, climate change adaptation, ecology and sustainable development in the Horn of Africa. Systematic identification of publications was conducted using several sources, including but not limited to electronic databases for literature search. Web of Science, Social Science Citation Index and Google Scholar and various scientific journals were investigated using search terms and restrictions. A total of 991 references were retrieved, but literature only published between 2003 to 2017 was selected, which led to the use of 51 works for full-text assessment. The results indicate that of the 51 selected studies, 45% focused on ecology and sustainable management, 31% on economic contribution and livelihood security, 20% on production and value chain development, and 4% on climate change adaptation and mitigation. It could be concluded that farmers’ adoption of Boswellia and Commiphora species as economic tree crops in the Horn of Africa has a distinct role in biodiversity conservation and climate change adaptation by contributing to the sustainability of ecosystem functioning as well as improving household incomes and the rural livelihood security in general, and thereby facilitating poverty alleviation.
Effect of N2 on Biological Methanation in a Continuous Stirred-Tank Reactor with Methanothermobacter marburgensis
Authors: Hoffarth Marc Philippe , Broeker Timo , Schneider Jan
Published: July 2019

In this contribution, the effect of the presence of a presumed inert gas like N 2 in the feed gas on the biological methanation of hydrogen and carbon dioxide with Methanothermobacter marburgensis was investigated. N 2 can be found as a component besides CO 2 in possible feed gases like mine gas, weak gas, or steel mill gas. To determine whether there is an effect on the biological methanation of CO 2 and H 2 from renewable sources or not, the process was investigated using feed gases containing CO 2 , H 2 , and N 2 in different ratios, depending on the CO 2 content. A possible effect can be a lowered conversion rate of CO 2 and H 2 to CH 4 . Feed gases containing up to 47% N 2 were investigated. The conversion of hydrogen and carbon dioxide was possible with a conversion rate of up to 91% but was limited by the amount of H 2 when feeding a stoichiometric ratio of 4:1 and not by adding N 2 to the feed gas.