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Ny teknologi i lantbruket
No full textInnehåll bla.a. Inbesparing av arbetstid och ändringar i arbetets karaktär, Eerikki Kaila och Markku Järvenpää; Informationssystem för företagsledning, Markku Järvenpää och Ari Enroth; Insamling av data från olika källor, Pasi Suomi, Markku Järvenpää och Markku Koistinen; Trådlös dataöverföring, Markku Järvenpää, Pertti Savela, Pasi Suomi och Markku Koistinen; Standardiserad dataöverföringskanal, Pasi Suomi, Jussi Knaapi, Teemu Autio och Maarit Kari; Automatisk mätteknik på åkern, Pasi Suomi; Planering av automatisk utfodring, Auvo Sairanen och Tuija Huhtamäki; Automatisering av nötkreaturens utfodring, Eerikki Kaila, Auvo Sairanen, Antti Suokannas, Janne Karttunen och Maarit Kari; Styrsystem för utfodring, Antti Suokannas och Auvo Sairanen; Automatisering av svinens utfodring, Maarit Hellstedt; Insamling av individuella data, Jaakko Mononen och Petri Saarinen; Strategier för en expanderande mjölkgård, Tapani Kivinen och Maarit Kari; Kompostering av stallgödsel, Maarit Hellstedt och Eerikki Kaila; Fraktionering av flytgödsel, Maarit Hellstedt och Maarit Kari; Anaerobisk hantering dvs. bioförgasning, Maarit Hellstedt; Mekanisk-biologisk behandling av stallgödsel, Maarit Hellstedt och Maarit Kari; Ventilations- och uppvärmningslösningar i mjölkkreatursbyggnader, Tapani Kivinen och Maarit Kari; Ventilations- och uppvärmningslösningar i svinhus, Tapani Kivinen och Maarit Kari
Kirja saatavissa myös suomenkielisenä: Teknologian hyödyntäminen maatilalla, ProAgria Keskusten Liiton julkaisuja 1136, Tieto tuottamaan 140, ISSN 1798-5307, ISBN 978-951-808-241-8
Использование смеси биоугля и торфа для снижения интенсивности запаха от животноводческих ферм
Get PDFAbstract. Odour from agriculture causes local nuisance to the neighborhood. Litter and cover materials can be used in animal housing and in storage of manure to reduce the odour problem. The use of biochar as a covering for animal manures is a new innovation and enhances the possibility to minimize the emissions from animal farms. (Research purpose) To study the possibility of using a mixture of biochar and peat as a manure covering, in order to reduce the intensity of odor on livestock farms. (Materials and methods) The potential of a mixture of biochar and peat for the odour control was tested in a laboratory study. A 10 cm layer of fresh mink manure was placed on the bottom of a 5 liter test bucket and the manure was covered with biochar-peat mixture (mixed in 50/50 ratio by volume) using five different covering thicknesses. Uncovered manure was used as a reference. The odour emission was measured with an olfactometric method that is based on odour sensation of a person. Also the character of the odour was described. (Results and discussion) The results show that a biochar-peat covering of at least 3 cm is able to considerably reduce the odour from the manure. The character of the odour was at first peat-like for all covered buckets but with thin coverings it was changed to more manure-like after 2 days. The odour from buckets with thicker covers remained peat-like during the whole testing period. (Conclusion) It is recommended to apply a biochar-peat covering to neutralize ammonia and the unpleasant manure odour on livestock farms. The author has shown that the frequency of use and the thickness of a covering layer depend on the ambient temperature; therefore, it is not necessary to cover manure in winter.Реферат. Неприятный запах от сельскохозяйственных животноводческих предприятий доставляет определенные неудобства расположенным поблизости жилым и производственным объектам. Чтобы уменьшить проблему с запахом, в животноводческих помещениях и при хранении навоза могут быть использованы для укрытия различные материалы, включая подстилочные. (Цель исследования) Изучить возможность использования смеси биоугля и торфа в качестве присыпки для навоза, чтобы снизить интенсивность запаха на звероводческих фермах. (Материалы и методы) В лабораторных условиях исследовали свойства смеси биоугля и торфа для нейтрализации запаха. Свежий навоз от норок слоем 10 сантиметров поместили на дно 5-литрового тестового резервуара. Покрыли его смесью биоугля и торфа (в соотношении 50/50 по объему). Использовали 5 вариантов толщины покрытия. Непокрытый смесью навоз приняли за контрольный образец. Интенсивность запаха определяли обонятельным методом. Описали характер запаха. (Результаты и обсуждение) Выявили, что покрытие навоза смесью биоугля и торфа толщиной не менее 3 сантиметров способно значительно уменьшить запах. Характер запаха был сначала торфоподобным во всех покрытых смесью резервуарах, но при тонком покрытии через 2 дня он становился более похожим на запах навоза. Запах от резервуаров с покрытием большей толщины оставался торфоподобным в течение всего периода исследования. (Выводы) Рекомендовали применять присыпку из биоугля и торфа для нейтрализации аммиака и неприятного запаха от навоза на зверофермах. Показали, что частота применения и толщина слоя смеси зависят от температуры окружающей среды, зимой присыпать навоз не требуется
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Использование смеси биоугля и торфа для снижения интенсивности запаха от животноводческих ферм
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Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Different kinds of exercise yards for dairy cows in Finland and basic design recommendations
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Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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