bluuebunny/crossref_metadata_2025 huggingface dataset:
EXPERIMENTAL RESOURCE STAND
RESEARCH OF THE GOLDEN DIVISION DISTRIBUTOR
Authors: Rutkevych Volodymyr
Published: February 2020

The article discusses and analyzes the operating conditions of a modern hydraulic drive. Despite the difficult operating conditions of modern agricultural machinery (difficult working conditions, frequent changes in the technological load on the working bodies, low quality of the working fluid, increased dust content and temperature fluctuations), the hydraulic drive is its main reliable element. The basis of hydraulic drives is hydraulic spool type devices, they remain the main components of a modern hydraulic drive, are able to increase energy, dynamic, cost characteristics and increase the reliability and durability of this drive. The advantages, disadvantages and directions of improvement of this drive are noted. The modern directions of development of the hydraulic drive aimed at increasing the reliability, durability and adaptability to changing the technological load on the working bodies are considered. A booth design is proposed that allows to investigate a resource study of the developed spool splitter of a forage stem feeder. As a result of the research at the initial stage, some shortcomings in the structural implementation of the developed spool of the flow divider at the time up to 2·104 cycles were revealed. After analyzing the operating conditions and making changes to the design of the stem feeder spacer spacer and retesting, the spacer spacer showed stable operation, with more than 6.6·105 load cycles.
METHOD OF COVERING THE SCHEDULE OF LOADING OF A LIVESTOCK FARM IN THE CASE OF AUTONOMOUS ELECTRICITY SUPPLY, BASED ON BIOGAS PLANTS
Authors: Stadnik Mykola , Hrytsun Aatolii , Protsenko Dmytro
Published: February 2020

The paper proposes a method of tracking the livestock farm load schedule based on the determination of the required generation capacity depending on the actual load schedule. The use of this method allows the management of biogas power plants based on internal combustion engines, depending on changes in the load without power reserve for the time of possible displacement of technological operations. Unlike the power backup method, there is no additional power loss at the time of the reservation, the possible incorrect switches of electrical equipment that do not correspond to the normalized schedule are excluded, there is work in changing the order of operations and the order of switching on the equipment. The use of the method improves the energy efficiency of the biogas plant and also increases the reliability of the livestock farm's autonomous electricity supply system. The calculations of the use of this method for the cattle farm prove its energy efficiency in the conditions of autonomous electricity supply.
Developed approaches to tracking the load schedule of the livestock farm allow for the management of biogas power plants depending on changes in the magnitude of the load without power reserve for the time of possible displacement of technological operations. The use of the proposed method is especially relevant for autonomous power systems. The calculations of using this method for a cattle farm testify to its effectiveness, in particular for a small cattle farm with a herd of 60 valid cows, 11 dry and 29 heads of young animals kept in the winter-stall period, the total saving is 82.8 kW ∙ h day.
JUSTIFICATION OF THE MODES OF THE MILK WASHING SYSTEM OF THE MILKING INSTALLATION
Authors: Babyn Ihor
Published: February 2020

Keywords: milk As a result of long-term operation of the milk-conducting lines of milking machines on their internal surfaces various in composition, properties, thickness, strength of adhesion to the deposition surface of alkaline and acidic nature are formed. Their presence leads to bacterial contamination of milk, resulting in a decrease in its quality and shelf life.
The process of washing the elements of milking machines is one of the most important technological operations, the efficiency of which depends on the level of primary contamination of milk.
The purpose is to investigate the operating parameters of the air injector operation of the milkweed flushing system of the milking plant and to substantiate their rational values.
As a result of numerical modeling in the software package STAR-CCM + and experimental studies of the process of washing the milk line of the milking plant using an injector, the dependence of the change in the speed of pressure and the value of the degree of purity of the milk line at different values of its diameter from the working vacuum injection time and injection injection time pauses of the air injector.
Comparing the theoretical and experimental dependences of the Fisher pressure velocity changes, the Pearson correlation coefficient and the determination coefficient can confirm the adequacy of theoretical studies.
Comparing the theoretical and experimental dependence of the degree of purity of the milk line by Fisher's criterion, the Pearson correlation coefficient and the coefficient of determination can confirm the adequacy of theoretical studies.
Solving the compromise problem, which minimizes the value of the rate of change of pressure at the highest value of the degree of purity of the milk line for different values of the diameter of the milk line obtained the corresponding rational parameters of the modes of operation of the injector.
INFLUENCE OF MILK QUALITY INDICATORS ON NUTRITIONAL PRODUCTS
Authors: Solomon Alla , Polievoda Yurii
Published: February 2020

Ukraine needs to introduce high standards for the safety and quality of dairy products, which have become the norm for the world's leading producers. According to the order of the profile ministry of the state «On approval of the Requirements for the safety and quality of milk and dairy products» must determine the safety of milk. The minimum milk to be processed must meet the relevant criteria. The requirements approved by the decree shall apply to milk and dairy market operators exporting or declaring their readiness for such exports to the competent authority.
For all other milk and dairy market operators, the above requirements apply from January 2022. The new national standards, harmonized with the European ones, require gradual implementation, which is why the order provides for a transitional period.
The Milk Producers Association (AVM) states that it is not profitable to produce milk by extravagance. According to the US National Profile Board, if the milk contains about 400,000 / ml somatic cells, then the farmer loses about 700 kg of milk during the cow's lactation period.
The overall goal of new legislative changes in Ukraine is to create and implement in our country a modern food safety monitoring system based on risk assessment in the dairy value chain. Therefore, dairy farms and the private population (who supply milk) should be prepared for periodic inspections of raw milk (laboratory tests) and for production inspection.
The article investigates the quality of milk collected from farms and private farms. Reasons for the decrease in the quality of the product under study were identified. Proposed ways to improve the quality of milk raw materials.
METHOD OF EVALUATION OF EFFICIENCY AND RELIABILITY OPERATION OF VIBRATION MACHINES
Authors: Weselovska Nataliya , Shargorodskiy Sergey
Published: February 2020

The use of new energy-saving technologies has led to the significant development of vibration machine designs and their widespread use. In the course of their operation, the question of efficiency and reliability of the use of this type of machines is rather acute, related to the availability and possibility of using reserves of its operation.
Machines of this type must meet the requirements of quality and reliability in order to fulfill their official purpose. Due to the design features and the complexity of the processes occurring during their work, analytical calculations of durability and reliability in the classical version are quite approximate in nature and do not provide the necessary accuracy.
So the question of reliability and durability of vibrating equipment is urgent.
The questions of reliability estimation of vibrating machines were dealt with by the following scientists: Iskovich-Lototsky RD, Obertyukh R., Sevastyanov IV, Kanarchuk VE, Dzhratratano D.J. etc. The techniques they offer are virtually indistinguishable from those adopted in general engineering.
The publication proposes a technique for evaluating efficiency and reliability based on the use of quantitative characteristics of probabilistic and statistical nature. Such indicators for quantifying the reliability and reliability are: probability of failure, failure rate, failure rate, failure time. These indicators are one of the most important in the technical diagnostics of the operation of vibrating machines and the estimation of their residual life. The basic calculation, dependencies, analysis of laws are given.
Whale Watching in Northern Peru: An Economic Boom?
Authors: Guidino Chiara , Campbell Elizabeth , Alcorta Belen , Gonzalez Valeria , Mangel Jeffrey C. , Pacheco Aldo S. , Silva Sebastian , Alfaro-Shigueto Joanna
Published: February 2020

Whale-watching tourism is growing rapidly worldwide. Currently, it occurs in more than 119 countries and is estimated to produce more than US$2.5 billion in annual revenue. In northern Peru, this industry is relatively new, and the economic impact generated from whale watching
remains unknown. This study was designed to provide an assessment of the economic impact of whale-watching activity in northern Peru. In this area the activity is focused on humpback whales (Megaptera novaeangliae). In 2018, we conducted surveys to 199 whale-watch tourists and six tour
companies to estimate the economic impact of the activity. Our results indicate that whale watching of humpback whales is currently worth an estimate of US$3 million annually as a tourist attraction, an economic input that did not exist in the region 10 years ago. This activity has
a significant potential for further growth; however, there is an urgent need for guidelines and regulations to ensure a sustainable and well-managed whale-watch tourism industry.
Academic-related perceptions, beliefs, and strategies of undergraduate agricultural students
Authors: Jordan Samantha , Stripling Christopher , Boyer Christopher , Stephens Carrie , Conner Nathan
Published: February 2020

Students’ academic-related perceptions, beliefs, and strategies are fundamental elements that influence teaching and learning within colleges of agriculture. This study investigated students’ academic efficacy, academic self-handicapping, and skepticism about the relevance of school for future success at the University of Tennessee’s Herbert College of Agriculture. The students were academically efficacious, rarely self-handicapped, and did not doubt the relevance of their degree. In addition, a low negative association was found between academic efficacy and self-handicapping, a negligible relationship was found between academic efficacy and skepticism about the relevance of school for future success, and a moderate relationship was found between academic self-handicapping and skepticism about the relevance of school for future success. Therefore, instructors are encouraged to move past traditional lecture-based instruction and challenge their students at higher cognitive levels, which will allow students to realistically explore the complexities of agriculture. Furthermore, academic self-handicapping may be an indicator of lower academic efficacy and/or skepticism about the relevance of a student’s degree. Future research should further explore these relationships.
No online information outbreak
Authors: Baker Lauri , McLeod-Morin Ashley , Kent Kevin , Lindsey Angela
Published: February 2020

Zoonotic diseases are a significant threat to human and animal health with the effects of a widespread epidemic impacting agricultural producers and consumers alike. Online information sources have the opportunity to widely distribute information, but, with a topic as complex as zoonotic disease, information sharing should be managed carefully. Risk communication and prepared responses for zoonotic disease can help communicate messages effectively. This study looked at how two federal websites, CDC and USDA, were communicating about zoonotic disease. The quantitative content analysis methodology was guided by the research objectives of 1) determine availability of information related to zoonotic disease, 2) describe the zoonotic diseases, impacts, and messages 3) determine the use of prepared responses in articles related to zoonotic disease, and 4) determine connectivity with other online resources on zoonotic disease. Results indicate information is difficult to find on both websites, and there is a lack of connectivity with other online resources. Prepared responses were used to varying degrees. Implications and recommendations from this work are that agricultural communicators and those with influence over federal communication on zoonotic disease should actively integrate prepared responses in communication and seek opportunities to connect to a larger network of those working in zoonotic disease.
A phenomenological inquiry to understand Ugandan farmers’ perceived barriers to fertilizer use
Authors: Mulvaney Chandler , Kelsey Kathleen
Published: February 2020

Sub-Saharan African (SSA) countries hold the promise of becoming the second breadbasket of the world if they adopt modern farming practices, including the use of fertilizers and other agricultural inputs. Increasing food production is imminent for all nations, especially in SSA due to the growing global population. Agricultural input adoption, such as fertilizers, leads to an increase in productivity; however, adoption rates among SSA nations remain chronically low. Using a phenomenological lens and qualitative research methods to gather interview data from 30 Ugandan subsistence farmers in situ, we described what and how farmers experienced in regard making decisions to adopt or reject fertilizers. Findings indicated that farmers experienced two poverty traps, resource and cultural beliefs. Recommended interventions include increasing participation in farmer groups and increasing participation in Extension training on the use of agricultural inputs, especially fertilizers.
Acerca de las consecuencias sociales de la arqueología. Epistemología y política de la práctica
Authors: Curtoni Rafael Pedro
Published: February 2020

En este trabajo se discute acerca de las consecuencias sociales de la arqueología considerando que buena parte de la misma funciona de acuerdo a los principios y postulados de la ciencia moderna occidental. Consideramos que esos mandatos constituyen una contradicción y un obstáculo para el involucramiento social dado que prescriben un deber ser sustentado en la neutralidad valorativa y la asepsia epistemológica. Como contrapartida, se propone considerar epistemología y política en conjunto como ámbito de oportunidades teniendo en cuenta las localizaciones geopolíticas de producción de los saberes.
Caracterización de la forma, tamaño y función de las vasijas ordinarias de Puerta de Corral Quemado (Dpto. de Belén, Prov. de Catamarca)
Authors: Iucci María Emilia
Published: February 2020

En este trabajo se analiza cerámica ordinaria tardía de la localidad de Puerta de Corral Quemado (Dpto. de Belén, Prov. de Catamarca), hallada tanto en una serie de entierros dispersos como en las estructuras excavadas en El Molino, un poblado arqueológico adscrito al Período de Desarrollos Regionales del Noroeste argentino (1100 - 1480 D.C.).Se parte de la premisa de que las elecciones técnicas que realicen los ceramistas durante el proceso de manufactura, en este caso específicamente en cuanto a la forma y el tamaño, permitirán elaborar una vasija que favorecerá ciertos usos. De esta manera, el análisis de la forma y el tamaño constituye evidencia indirecta para establecer hipótesis acerca de las funciones para las que las vasijas resultaban particularmente adecuadas. En el presente trabajo se realiza una descripción de las formas y tamaños de las piezas fragmentarias y completas, y se sugieren una serie de hipótesis acerca de sus posibilidades funcionales.A través del análisis de las vasijas ordinarias pudimos observar una amplia variedad de formas y tamaños, al mismo tiempo que una regularidad en la forma de ciertos tipos de piezas. Con respecto a las funciones inferidas, se halla una probable distinción entre aquellas relacionadas con la esferas doméstica y funeraria.
Una mirada a los entornos construidos en el valle de Tafí, Tucumán (1 - 1000 AD)
Authors: Salazar Julián , Franco Salvi Valeria L.
Published: February 2020

Este trabajo analiza los modos en que se constituyeron los paisajes del Valle de Tafí a través del primer milenio d.C. Los avances realizados hasta la actualidad, nos permiten plantear que fueron construidos en múltiples situaciones generadas por estrategias sociales y negociaciones permanentes entre agentes tanto humanos como no humanos a lo largo de varios siglos llevando a la coexistencia de prácticas "domésticas" y "comunales" en ámbitos indiferenciados, constituyéndose como la base de las posibilidades de reproducción de estas sociedades agrícolas.
Caracterización cultural y Funcional de estructuras arqueológicas (El Potrerillo- Tucumán-Argentina).
Authors: Roldán Jimena , Sampietro Vattuone M. Marta , Neder Liliana del V. , Vattuone Marta A. , Maldonado Mario
Published: February 2020

El objetivo de este trabajo es realizar la caracterización cultural y funcional de las estructuras arqueológicas prehispánicas formativas de la localidad El Potrerillo (Tafí del valle-Tucumán-Argentina), a través del análisis geomorfológico del paisaje y pedogeoquímico del suelo en el cual se asentaron. Se fotointerpretó el área registrando la morfodinámica y las estructuras arqueológicas. Se excavaron siete pozos de sondeo considerando distintas situaciones contextuales, se describieron los horizontes del suelo y sus componentes y se tomaron muestras que luego fueron analizadas en laboratorio, teniendo en cuenta las concentraciones de fósforo orgánico, porcentaje de materia orgánica, macronutrientes (calcio y fósforo disponibles) y micronutrientes (hierro, cobre y manganeso disponibles). Los resultados obtenidos permitieron reconocer dos tipos de estructuras arqueológicas formativas: residenciales, evidenciadas en los restos materiales (diseños de plantas, fragmentos de cerámica, restos de carbón y cenizas) y agrícolas, por presencia de estructuras arqueológicas de terracería. La ausencia del horizonte superficial 2A y de incrementos en la concentración de fósforo orgánico informan sobre la falta de prácticas conservacionistas en la actividad agrícola prehispánica del sector.
Representaciones rupestres tardías en Morritos, San Antonio de los Cobres, puna de Salta. Observaciones e hipótesis preliminares
Authors: Muscio Hernán Juan
Published: February 2020

En esta contribución presento, sucintamente, algunos aspectos de las representaciones rupestres del sitio Morritos Alero 2 del Período Tardío. El sitio pertenece a un conjunto de sitios localizados en el paraje Los Patos, cuenca de San Antonio de los Cobres, Salta, Argentina (Figura 1). El conjunto se dispone sobre la parte superior de una terraza aluvial elevada por encima de los 200 m sobre el cauce del río Los Patos, cuya altitud es de 3900 msnm, y con una pendiente abrupta. En la cumbre de esta geoforma la evidencia arqueológica se distribuye heterogéneamente en una superficie escarpada y sin disponibilidad de agua. Por su ubicación en lo alto, desde Morritos se domina visualmente el valle de San Antonio de los Cobres y las Salinas Grandes hacia el Norte y hacia el sureste el Acay y la planicie que lo circunda. Entre la evidencia arqueológica hay estructuras arquitectónicas aisladas y agrupadas. Las estructuras aisladas son de planta circular que varían entre los 12 y 26 m de diámetro. Por su emplazamiento y tamaño se trataría de corrales, mientras que las pocas estructuras agrupadas corresponderían a recintos, ya que sus dimensiones no superan los 4 m de diámetro y sus plantas son de forma irregular, también localizadas en estos sectores acantilados, que además presentan aleros naturales cuya excavación reportó evidencia arqueológica diversa. Este es el caso de Morritos Alero 2.
La casa y el campo en la Quebrada de Los Corrales (el Infiernillo, Tucumán): reflexiones sobre la espacialidad en el 1° milenio d.C..
Authors: Di Lullo Eugenia
Published: February 2020

La Quebrada de Los Corrales (El Infi ernillo, Tucumán) es un yacimiento arqueológico cuyo lapso de ocupación más intenso se dio entre ca. 2100 y 1560 años AP. Aquí, las áreas agrícolas-pastoriles están separadas de las residenciales, situación que contrasta con otros sitios de la región del mismo período. En este sentido, el objetivo de este trabajo es comprender las condiciones que habrían generado la particular estructuración del espacio y las implicancias que tuvo esto a través del análisis de mapas realizados mediante SIG.
Contribución a la arqueología del Delta del Paraná: el nivel acerámico del sitio Isla Lechiguanas 1
Authors: Loponte Daniel , Acosta Alejandro , Mucciolo Leonardo
Published: February 2020

El sitio arqueológico Isla Lechiguanas 1 está ubicado en el sur de la isla homónima, en el Departamento de Gualeguay, al sur de la provincia de Entre Ríos, frente a la costa bonaerense. Se reconocieron dos unidades arqueológicas separadas por un conchero natural de Ampullariasp. que actuó como un sello estratigráfi co entre ambos componentes. El nivel superior, datado en 408 ± 30 añosC14 AP,posee abundantes restos óseos y cerámica lisa e incisa, mientras que el nivel inferior no posee cerámica. En este nivel se recuperaron numerosos desechos de manufactura, instrumentos óseos y una importante colección faunística que es objeto de análisis en este trabajo. Dos fechados radiocarbónicos obtenidos en este nivel arrojaron una antigüedad de 2267 ± 34 años C14 AP y 2296 ± 34 años C14 AP. La fauna recuperada está representada por los taxones actuales del área y del sector continental bonaerense, indicando el desarrollo de rangos amplios de captura y el establecimiento de una oferta similar a la actual a mediados del Holoceno tardío. Se discuten diversos aspectos relacionados con la tendencia regional del registro faunístico, las variaciones espacio-temporales de la subsistencia humana durante el Holoceno y la representación esqueletaria de algunas especies presentes en el depósito.
Los cérvidos de la localidad arqueológica Cañada Honda (Baradero, Buenos Aires). Análisis preliminar
Authors: Escosteguy Paula D.
Published: February 2020

Cañada Honda es una localidad compuesta por siete sitios dispersos en ambas márgenes del arroyo Cañada Honda y del río Areco (Baradero, provincia de Buenos Aires). A comienzos de la década de 1950 se desarrollaron trabajos de campo desde el Museo “Carlos Ameghino” de Mercedes (provincia de Buenos Aires), dirigidos por José Bonaparte. Las excavaciones se centraron en el Paradero 1 de donde proviene la mayor cantidad de materiales; el mismo se ubica a 33º56’34” latitud S. y 59º20’53,46” longitud O., sobre la margen derecha del arroyo Cañada Honda a 200 m del río Areco (Figura 1). Está enmarcado en el ambiente litoral del Delta Inferior del río Paraná, siendo su cronología de poco más de dos mil años: 2030 ± 100 años AP (LP-2368) y 2130 ± 60 años AP (LP-2422); ambos fechados obtenidos sobre restos de Lama guanicoe (ver Lanzelotti et al. 2011).
Estrategias de caza en Fuego-Patagonia
Authors: Borrero Luis Alberto
Published: February 2020

Se discuten las distintas tácticas de caza conocidas en el presente etnográfico en general, e inferidas en el pasado arqueológico, con particular énfasis en los casos de Fuego-Patagonia. Se concluye que las tácticas identificadas hasta el momento en Fuego-Patagonia son mayoritariamente colectivas, las que deben distinguirse de las comunales-masivas. Dentro de este contexto, tras discutir en particular el caso del sitio Las Vueltas 1, Tierra del Fuego, se considera que aún no se han identificado bone beds atribuibles a eventos únicos de caza de guanacos (Lama guanicoe).
El sur de pozuelos (Puna de Jujuy, Argentina) antes del 1.000 d.c. primeras evidencias arqueológicas
Authors: Angiorama Carlos , Argañaráz Fochi Diego , Becerra María Florencia , Del Bel Ezequiel , Díaz Osvlado , Giusta Marco , Leiton Diego , Pérez Pieroni Maria Josefina , Curletto Silvina Rodríguez , Torres Vega Lucrecia
Published: February 2020

Este artículo tiene como objetivo dar a conocer las evidencias arqueológicas anteriores al 1.000 d.C. registradas en el sector sur de Pozuelos, las primeras de tal antigüedad reportadas para el área. Estas son escasas en relación a las de épocas posteriores, y consisten en representaciones rupestres, fragmentos cerámicos y material lítico hallado en superficie. No se han detectado hasta el momento ocupaciones en cuevas o aleros, ni arquitectura que puedan asignarse a este período temporal. En base a la información presentada se plantea que la ocupación arcaica de la región habría sido más intensa y extendida que la de época formativa temprana, y que la paulatina disminución en la cantidad de evidencias arqueológicas a medida que avanzamos en el tiempo, se habría acentuado notablemente para el primer milenio de nuestra era. Esto reflejaría un relativo despoblamiento del sur de Pozuelos hasta que, luego del 1.200 d.C., el número de habitantes del área de estudio se habría incrementado exponencialmente.
Representaciones rupestres del noreste de Neuquén (Patagonia Septentrional). Primeras tendencias espaciales y temporales
Authors: Romero Guadalupe , Re Anahí
Published: February 2020

En este trabajo se realiza una primera caracterización de las representaciones rupestres documentadas en el departamento Pehuenches, noreste de Neuquén (Patagonia septentrional). Partiendo desde un marco de referencia biogeográfico, se discute el potencial rol del arte rupestre estudiado como demarcador simbólico del espacio, evaluándose las características de este registro en espacios con diferentes propiedades ecológicas y geográficas. Luego, se contextualiza esta información en una escala más amplia a partir de una primera comparación con lo registrado por otros investigadores en regiones aledañas. Asimismo, se consideran diversos indicadores cronológicos a fin de realizar una asignación temporal tentativa de las manifestaciones rupestres analizadas. A partir de las tendencias presentadas, se inicia la discusión respecto del rol que ocupó la información y su circulación en la organización de las poblaciones humanas que habitaron el noreste de Neuquén en el pasado
RESTOS ARQUEOBOTÁNICOS DEL SITIO RINCÓN CHICO 1. UNA APROXIMACIÓN A LOS POSIBLES ESCENARIOS DE PROCESAMIENTO, USO Y CONSUMO
Authors: Petrucci Natalia , Tarragó Myriam
Published: February 2020

La excavación por muestreo estratificado en el asentamiento prehispánico de Rincón Chico -Sitio 1-, Departamento de Santa María, Provincia de Catamarca, perseguía entre sus objetivos, obtener información no sesgada sobre el conjunto de estructuras arquitectónicas, según forma y tamaño, y recuperar restos arqueobotánicos. Con tales propósitos, en las campañas de 1992 y 1995, se implementó el uso de la técnica de flotación por medios manuales. El presente trabajo presenta el análisis del conjunto de restos botánicos carbonizados que proceden de pisos de ocupación. De estos restos, se seleccionaron aquellos relacionados con el consumo alimenticio. Se dan los fundamentos del método, el modo en que se implementó y se discuten los resultados obtenidos.
Informe sobre la relocalización de un hallazgo de alta montaña del Noroeste Argentino: la llamada “momia de los Quilmes”
Authors: Schobinger Juan
Published: February 2020

Informe sobre la relocalización de un hallazgo de alta montaña del Noroeste Argentino: la llamada “momia de los Quilmes”
Variabilidad de la Ergología Indígena en el sur de Córdoba
Authors: Austral Antonio G. , Rocchietti Ana María
Published: February 2020

Variabilidad de la Ergología Indígena en el sur de Córdoba
Recursos bióticos y subsistencia en sociedades agropastoriles de la Puna Meridional Argentina
Authors: Olivera Daniel
Published: February 2020

Recursos bióticos y subsistencia en sociedades agropastoriles de la Puna Meridional Argentina
Manajemen Rantai Pasokan (Supply Chain Management)
Authors: Sucahyowati Hari
Published: February 2020

Adanya praktek manajemen logistik tradisional yang bersifat adversarial pada era modern ini sudah tidak relevan lagi, karena tidak dapat menciptakan keunggulan kompetitif. Perkembangan lingkungan industri yang dinamis pada era global seperti sekarang ini menjadi pemicu bagi banyak organisasi perusahaan untuk menggali potensi yang dimiliki, serta mengidentifikasi faktor kunci sukses untuk unggul dalam persaingan. Usaha-usaha yang dilakukan diarahkan untuk memberikan produk yang terbaik bagi konsumen. Produk yang ditawarkan perusahaan kepada konsumen dalam pengertian manajemen produksi dan operasi adalah kombinasi produk barang dan jasa. Menyajikan produk dalam arti luas, merupakan tantangan sekaligus peluang bagi sistem produksi operasi yang harus dijalankan perusahaan. Mulai dari mengidentifikasi selera konsumen sampai dengan mengupayakan seluruh kebutuhan input dari pemasok untuk memproduksi dan mendistribusikan produk tersebut sesuai dengan selera konsumen yang dibidik. Pada dasarnya konsumen mengharapkan dapat memperoleh produk yang memiliki manfaat pada tingkat harga yang dapat diterima.
Penilaian Kinerja Dengan Balance Scorecard
Authors: Erliyana Sulida
Published: February 2020

Konsep balance scorecard berkembang sejalan dengan perkembangan implementasi konsep tersebut. Balance scorecard terdiri dari 2 (dua) kata : balance (berimbang) dan scorecard (kartu skor). Kartu skor adalah kartu yang digunakan untuk mencatat skor hasil kinerja. Kartu skor juga dapat digunakan untuk merencanakan skor yang hendak diwujudkan oleh personil dimasa depan. Melalui kartu skor, skor yang hendak diwujudkan oleh personel di masa depan dibandingkan dengan hasil kinerja sesungguhnya. Hasil perbandingan ini digunakan untuk melakukan evaluasi atas kinerja personel yang bersangkutan. Kata berimbang dimaksudkan untuk menunjukkan bahwa kinerja personel diukur secara berimbang dari 2 (dua) aspek yaitu keuangan dan non keuangan, jangka pendek dan jangka panjang, intern dan ekstern
Pengaruh Human Relation, Kondisi Fisik Lingkungan dan Organization Based Self-Esteem Terhadap Etos Kerja Serta Dampaknya Pada Kinerja Karyawan BPR Kedung Arto Semarang
Authors: Suryati Azizah Iik
Published: February 2020

This research intent to test Subjective implement effectiveness Human Relation, Condition of Environment Physical, Organization Based Self Esteem to job and Performance Ethos. Base former observational result, condition of environment physical constitute molded environment of implemented subjective human squire. Relationship among human contain mean a communication since its character that orientation on behavioral. Therefore, organization righteously has give freedom to fire an employee to get that communication they can collaborate properly in their work.

This research is done on BPR Kedung Arto at Semarang. Method that is utilized as method of census via pervading questionnaire of population a number 102 person. Two phase regression analysis is utilized as quantitative analysis.

Coefficients arithmetic result determinant totaled point out that 72% changing variable dependent can be worded by independent variables. Meanwhile its rest as big as 28% worded by outdoor other variables model observational. Hypthothesis testing result partially of each step points out to mark sense influence positively and significant of job Ethos to Performance. Hereafter, Human Relation, Condition of Environment Physical and OBSE each have influence positively and significant to job Ethos.
Pengaruh Revolusi Industri 4.0 Terhadap Online Service Terminal Petikemas Koja Jakarta
Authors: Relani Irena , Nur Hidayat Eko
Published: February 2020

Tujuan dari penelitian ini adalah untuk mengetahui dan menjelaskan tentang dampak Revolusi Industri 4.0 terhadap Online Service Terminal Petikemas Koja Jakarta dari     sistem pembayaran, pelayanan yang ada di prosedur dan realisasinya di lapangan. Dalam penyusunan karya tulis ini, Penulis menggunakan beberapa metode atau cara dalam pengumpulan data, yaitu: Metode observasi, Metode Wawancara, dan Metode Kepustakaan. Dari pembahasan diperoleh bahwa pengaruh revolusi industry 4.0 sudah terasa di beberapa sistem pelayanan seperti E – ticket & KIOSK walaupun masih dilakukan dengan semi otomatis, belum ada aplikasi online service secara real time terintegrasi. Hal ini membuat custumer masih harus datang memberikan data secara fisik, karena belum bisa diakses dimana saja dan kapan saja.
A EXPORTAÇÃO DE CARNE BOVINA NO BRASIL
Authors: Cunha dos Santos Caliari Shirley
Published: February 2020

Com o crescimento do mercado internacional de carne bovina, o Brasil vem se destacando como exportador em um negócio que se torna mais competitivo e exigente a cada dia. O objetivo desse artigo é apresentar a situação atual do mercado exportador brasileiro, os impactos desse setor na economia do país, sua cadeia produtiva, o transporte, os desafios enfrentados pelos exportadores brasileiros para tornar o produto mais competitivo e melhorar sua qualidade. Este trabalho irá também discutir algumas alternativas para o transporte da carga dos frigoríficos até os portos bem com as perspectivas de crescimento das exportações da carne bovina brasileira após o acordo de exportação de carne in natura fechado com os Estados Unidos.
IMPLEMENTAÇÃO DA FERRAMENTA FMEA DE PROCESSO NA INDÚSTRIA AERONÁUTICA
Authors: Pereira Larissa Cintra
Published: February 2020

O setor aeronáutico sempre teve como premissa que os produtos de fornecedores tivessem alto grau de maturidade, tendo requisitos como testes de maturidade e de qualificação. Porém, ambos não tratavam das não conformidades, restando a necessidade de troca das peças rejeitadas, ocasaionando parada da linha fabril. Tendo referência o cenário automotivo e seu alto controle de maturidade, a empresa Alfa decidiu por empregar o PPAP (Production Part Approval Process) em seus fornecedores, afim de diminuir essas não conformidades. Um destes deliverables é o FMEA de Processo, no qual a Qualidade é responsável por avaliar e assegurar que o processo fabril do fornecedor tenha conhecimento dos modos de falha de seu processo e que impeça que itens rejeitados sejam enviados ao cliente. Esta monografia visa apresentar a aplicação diferenciada do PFMEA em forma de cobrança, avaliação, ganhos de processo, lessons learned, e por fim, payback dessa ferramenta para a empresa.
FERRAMENTA E METODOLOGIA ORIENTADA POR NÍVEIS DE ANÁLISE PARA VISUALIZAÇÃO DE DADOS AMBIENTAIS
Authors: D'Alessandro Leonardo Leonzi , Corrêa Pedro Luiz Pizzigatti , Rizzo Luciana Varanda , Pinaya Jorge Luiz Diaz , De Oliveira Marina
Published: February 2020

Existe na comunidade de ciências atmosféricas, uma carência pelo desenvolvimento de ferramentas para visualização de dados que integrem diversos conjuntos de informações relacionadas às condições meteorológicas e ambientais. Esse trabalho tem como foco a discussão de técnicas de visualização e gerenciamento de dados ambientais orientadas por uma metodologia de análise ordenada em níveis temporais (níveis de ano, mês e dia). Foi desenvolvida uma ferramenta computacional que permitiu a integração dos níveis de análise, facilitando tirada de conclusões. Para a implementação de tal ferramenta, fez-se uso de recursos oferecidos por bibliotecas do Python.
DESENVOLVIMENTO DE UM BOCAL SUPERSÔNICO PARA UMA BANCADA DE TESTES DE COMBUSTORES SUPERSÔNICOS
Authors: Nunes e Silva Ericles Willian , Guimarães Jefte Da Silva , Leite Valéria Serrano Faillace Oliveira , Junior Dermeval Carinhana
Published: February 2020

Os equipamentos de ensaio em solo são utilizados como ferramentas para a obtenção de dados representativos de um voo real. Atualmente o IEAv possui uma versão Piloto de uma Bancada de Testes de Combustores Supersônicos (BTCS), que está sendo utilizado para os estudos de escoamentos supersônicos e estudos de combustão supersônica, e também para obtenção de dados que ajudarão na montagem da BTCS definitiva. A BTCS Piloto é formada basicamente de uma câmara de combustão que tem como finalidade aquecer o escoamento, acoplado a um bocal supersônico, para acelerar o mesmo até as condições de ensaio. Este trabalho tem como objetivo o desenvolvimento de bocais, para serem utilizados na BTCS piloto, visando a obtenção de números da Mach entre 2 e 3, adaptados à vazão e à pressão fornecida atualmente pela linha de alimentação de gases da bancada.
OS GANHOS NA INDÚSTRIA COM A MANUTENÇÃO AUTÔNOMA - PILAR DO TPM
Authors: Silva Júnior Fábio Jorge Custódio da , Vidal Thiago Rodrigo , Yamada Newton
Published: February 2020

O atual contexto de concorrência vivenciado pelas empresas tem tornado indispensável a adoção de medidas estratégicas que possam contribuir para melhoria de seus resultados. Nesse contexto as diversas formas de manutenção estão entre as principais formas de sobrevivência das empresas. A empresa em que aplicamos a metodologia, baseia-se na central de usinagem de uma multinacional fabricante de produtos de saúde e higiene, localizada em São José dos Campos, e descreve como foi implementado a manutenção autônoma do TPM.  Para tanto utilizou-se de uma pesquisa descritiva, por meio de um estudo de caso. A partir desta análise são apontados pontos fortes e pontos fracos da implementação da TPM que poderão auxiliar os gerentes que desejam adotar ou que estão adotando essa ferramenta em suas organizações. A manutenção autônoma combate os defeitos no processo, tempo, materiais, energia e do próprio equipamento decorrente da produção de produtos defeituosos.
PERAN BIOTEKNOLOGI DALAM PEMBUATAN PUPUK HAYATI
Authors: Sriwahyuni Putu , Parmila Putu
Published: February 2020

Kemajuan bioteknologi tidak hanya memudahkan dalam proses inokulasi dan penyusunan formulasi pupuk hayati, tetapi juga memudahkan dalam identifikasi dan karakterisasi jenis-jenis mikroorganisme yang menunjukkan efektivitas tinggi sebagai pupuk hayati. Kumpulan mikroorganisme terpilih  meningkatkan efektivitas penambatan hara tertentu dan memfasilitasi penyediaannya bagi tanaman.  Pembuatan pupuk hayati dapat dilakukan secara sederhana hanya dengan mengambil tanah yang pernah dipalikasikan pupuk hayati, misalnya legin pada tanaman kacang tanah, kemudian diaplikasikan pada lahan pertanaman baru untuk pertanaman kacang-kacangan atau dengan teknologi canggih untuk mengidentifikasi, mengisolasi mikroorganisme unggulan tertentu dan membuat suatu formulasi campuran berbagai jenis mikroorganisme yang mampu menghasilkan nutrisi secara langsung ataupun tidak langsung untuk pertumbuhan tanaman.  Berbagai penelitian menunjukkan, pupuk hayati bermanfaat dalam memperbaiki kesuburan tanah, meningkatkan kesehatan tanah, memacu pertumbuhan dan produksi tanaman . Namun demikian, penggunaan pupuk hayati oleh petani masih tertinggal jauh dibandingkan pupuk non hayati. Oleh karena itu, penelitian, pengembangan, dan inovasi produk pupuk hayati perlu terus dilakukan.
ANALYSIS OF PARTICIPANTS AND SIGNIFICANCE FACTORS IN CONSTRUCTION SUPPLY CHAIN
Authors: Fugalis Giedrius , Migilinskas Darius
Published: February 2020

The construction supply chain is an integral part of the construction process, due to inadequate control of
the construction supply chain, where competition and number of disturbances increase among all construction members. Disturbances
occur in the supply chain functions such as material supply, production, storage, distribution, cash and information flow shortcomings.
Inefficient supply chain management will prevent the desired outcome of a construction project and may also be detrimental to companies
involved in the supply chain. Therefore, it is essential to properly plan every process in the supply chain and to find the most efficient
solution and meet the needs of both the company and the customers. The article analyses the significance of factors and the potential influence
of participants in the supply chain and provides the survey with application the relative importance index method. At the end of the article,
specific construction supply chain relations are analysed, conclusions are drawn and a supply chain model is proposed.
Near-ultraviolet Transmission Spectroscopy of HD 209458b: Evidence of Ionized Iron Beyond the Planetary Roche Lobe
Authors: Cubillos Patricio E. , Fossati Luca , Koskinen Tommi , Young Mitchell E. , Salz Michael , France Kevin , Sreejith A. G. , Haswell Carole A.
Published: February 2020

The inflated transiting hot Jupiter HD 209458b is one of the best studied objects since the beginning of exoplanet characterization. Transmission observations of this system between the mid-infrared and the far-ultraviolet have revealed the signature of atomic, molecular, and possibly aerosol species in the lower atmosphere of the planet, as well as escaping hydrogen and metals in the upper atmosphere. From a re-analysis of near-ultraviolet transmission observations of HD 209458b we detect ionized iron (Fe+) absorption in a 100 Å-wide range around 2370 Å, lying beyond the planetary Roche lobe. However, we do not detect absorption of equally strong Fe+ lines expected to be around 2600 Å. Further, we find no evidence for absorption by neutral magnesium (Mg), ionized magnesium (Mg+), nor neutral iron (Fe). These results avoid the conflict with theoretical models previously found by Vidal-Madjar et al., which detected Mg but did not detect Mg+ from this same data set. Our results indicate that hydrodynamic escape is strong enough to carry atoms as heavy as iron beyond the planetary Roche lobe, even for planets less irradiated than the extreme ultra-hot Jupiters such as WASP-12 b and KELT-9 b. The detection of iron and nondetection of magnesium in the upper atmosphere of HD 209458b can be explained by a model in which the lower atmosphere forms (hence, sequesters) primarily magnesium-bearing condensates, rather than iron condensates. This is suggested by current microphysical models. The inextricable synergy between upper- and lower-atmosphere properties highlights the value of combining observations that probe both regions.
Detrending Exoplanetary Transit Light Curves with Long Short-term Memory Networks
Authors: Morvan Mario , Nikolaou Nikolaos , Tsiaras Angelos , Waldmann Ingo P.
Published: February 2020

The precise derivation of transit depths from transit light curves is a key component for measuring exoplanet transit spectra, and henceforth for the study of exoplanet atmospheres. However, it is still deeply affected by various kinds of systematic errors and noise. In this paper we propose a new detrending method by reconstructing the stellar flux baseline during transit time. We train a probabilistic long short-term memory (LSTM) network to predict the next data point of the light curve during the out-of-transit, and use this model to reconstruct a transit-free light curve—i.e., including only the systematics—during the in-transit. By making no assumption about the instrument, and using only the transit ephemeris, this provides a general way to correct the systematics and perform a subsequent transit fit. The name of the proposed model is TLCD-LSTM, standing for transit light-curve detrending-LSTM. Here we present the first results on data from six transit observations of HD 189733b with the IRAC camera on board the Spitzer Space Telescope, and discuss some of its possible further applications.
Standing MHD Waves in a Magnetic Slab Embedded in an Asymmetric Plasma Environment: Slow Surface Waves
Authors: Oxley William , Zsámberger Noémi Kinga , Erdélyi Róbert
Published: February 2020

The field of solar magnetoseismology (SMS) is heavily reliant upon our understanding of magnetohydrodynamic (MHD) waves that occur in many solar features. Building on previous studies of propagating MHD waves in a magnetic slab embedded in a nonmagnetic asymmetric environment, in this study we assume a line-tying boundary condition and use analytical techniques to derive the dispersion relation for linear standing MHD oscillations. The slab is first assumed thin, with arbitrary asymmetry, in order to derive the frequencies of the standing harmonic modes for both slow quasi-sausage and slow quasi-kink waves. Besides this, the asymmetry is assumed to be weak in order to determine the frequency dependence on the width of the slab and the asymmetry of the system, to leading order. For both the quasi-sausage and quasi-kink modes, the derived eigenfrequencies show that the dependence on the asymmetry in the system is much weaker than the dependence on the width of the slab. Using the eigenfrequencies, other observable quantities are derived (such as, e.g., the frequency ratio) providing an opportunity to use SMS to infer background diagnostics of the system.
The PIPER Survey. I. An Initial Look at the Intergalactic Globular Cluster Population in the Perseus Cluster
Authors: Harris William E. , Brown Rachel A. , Durrell Patrick R. , Romanowsky Aaron J. , Blakeslee John , Brodie Jean , Janssens Steven , Lisker Thorsten , Okamoto Sakurako , Wittmann Carolin
Published: February 2020

We describe the goals and first results of the Program for Imaging of the PERseus cluster of galaxies (PIPER). The first phase of the program builds on imaging of fields obtained with the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS)/WFC and WFC3/UVIS cameras. Our PIPER target fields with HST include major early-type galaxies including the active central giant NGC 1275, known ultra-diffuse galaxies, and the intracluster medium. The resulting two-color photometry in F475W and F814W reaches deep enough to resolve and measure the globular cluster (GC) populations in the Perseus member galaxies. Here we present initial results for eight pairs of outer fields that confirm the presence of intergalactic GCs (IGCs) in fields as distant as 740 kpc from the Perseus center (40% of the virial radius of the cluster). Roughly 90% of these IGCs are identifiably blue (metal-poor) but there is a clear trace of a red (metal-rich) component as well, even at these very remote distances.
A Nucleosynthetic Origin for the Southwestern Fe-rich Structure in Kepler’s Supernova Remnant
Authors: Sato Toshiki , Bravo Eduardo , Badenes Carles , P. Hughes John , Williams Brian J. , Yamaguchi Hiroya
Published: February 2020

Chandra X-ray observations of Kepler’s supernova remnant indicate the existence of a high-speed Fe-rich ejecta structure in the southwestern region. We report strong K-shell emission from Fe-peak elements (Cr, Mn, Fe, Ni), as well as Ca, in this Fe-rich structure, implying that those elements could be produced in the inner area of the exploding white dwarf. We found Ca/Fe, Cr/Fe, Mn/Fe, and Ni/Fe mass ratios of 1.0%–4.1%, 1.0%–4.6%, 1%–11%, and 2%–30%, respectively. In order to constrain the burning regime that could produce this structure, we compared these observed mass ratios with those in 18 one-dimensional Type Ia nucleosynthesis models (including both near-M
Ch and sub-M
Ch explosion models). The observed mass ratios agree well with those around the middle layer of incomplete Si burning in Type Ia nucleosynthesis models with a peak temperature of ∼(5.0–5.3) × 109 K and a high metallicity, Z > 0.0225. Based on our results, we infer the necessity for some mechanism to produce protruding Fe-rich clumps dominated by incomplete Si-burning products during the explosion. We also discuss the future perspectives of X-ray observations of Fe-rich structures in other Type Ia supernova remnants.