5,380 research outputs found
Instructional Packages Geography Based on Ecosystem (PIGeoEk) Development in Improving Students’ Knowledge About Ecosystem Concepts and Relation to Students’ Environmental Behavior
No full textThe learning have been tended to put more emphasis on knowledge transfer. One of the efforts in improving students' knowledge about the concepts of ecosystem and relation to students’ environmental behavior is integrating Geography and environmental education developing instructional packages based on ecosystem for teachers of Geography. This study aims to develop an instructional packages geography based on ecosystem (PIGeoEk) in improving students' knowledge of the concepts of the ecosystem and related to students’ environmental behavior. A research and development (R & D) based on Borg and Gall (2007), refering to the Dick and Carey design (2009), steps has been applied by involving 80 students of grade XI majoring in social sciences of SMAN 5 Depok for treatment, and grade XI majoring in social sciences of SMAN 3 Depok as a control group. There are four instructional packages geography based on ecosystem (PIGeoEk) have been developed and instrument test used for measuring knowledge about the concepts of ecosystem and relation to students’ environmental behavior. The are four t-test have been applied to verify the effectiveness of Instructional Pakages. Research results indicate that there is a significant difference between mean of gain score obtained from post and pre test at treatment group compare to control group. Therefore, the instructional packages geography based on ecosystem (PIGeoEk) could be implemented in enhancing students' knowledge about the concepts of the ecosystem in relation to students’ environmental behavior effectively
Numerical modelling of ice floods in the Ning-Meng reach of the Yellow River basin
No full textThe Ning-Meng reach of the Yellow River basin is located in the Inner Mongolia region at the Northern part of the Yellow River. Due to the special geographical conditions, the river flow direction is towards the North causing the Ning-Meng reach to freeze up every year in wintertime. Both during the freeze-up and break-up period, unfavourable conditions occur which may cause ice jamming and ice dam formation leading to dike breaching and overtopping of the embankment. Throughout history this has often led to considerable casualties and property loss. Enhanced economic development and human activities in theregion have altered the characteristics of the ice regime in recent decades, leading to several ice disasters during freezing or breaking-up periods. The integrated water resources management plan developed by the Yellow River Conservancy Commission (YRCC) outlines the requirements for water regulation in the upper Yellow River during ice flood periods. YRCC is developing measures that not only safeguard against ice floods, but also assure the availability ofadequate water resources. These provide the overall requirements for developing an ice regime forecasting system including lead-time prediction and required accuracy. In order to develop such a system, numerical modelling of ice floods is an essential component of current research at the YRCC, together withfield observations and laboratory experiments. In order to properly model river ice processes it is necessary to adjust the hydrodynamic equations to account for thermodynamic effects. In this research, hydrological and meteorological data from 1950 to 2010 were used to analyse the characteristics of ice regimes in the past. Also, additional field observations were carried out for iceflood model calibration and validation. By combining meteorological forecasting models with statistical models, a medium to short range air temperature forecasting model for the Ning-Meng reach was established. These results were used to improve ice formation modelling and prolong lead-time prediction. The numerical ice flood model developed in this thesis for the Ning-Meng reach allows better forecasting of the ice regime and improved decision support for upstream reservoir regulation and taking appropriate measures for disaster risk reduction.Dissertation submitted in fulfillment of the requirements of the Board for Doctorates of Delft University of Technology and of the Academic Board of the UNESCO-IHE Institute for Water Education.Environmental Fluid Mechanic
GAYA KOMUNIKASI DAKWAH NING UMI LAILA PADA LIVE COMAL PEMALANG
No full textCommunication style is a way for a person to convey messages verbally and non-verbally in the hope that it will be conveyed well to the recipient of the message. In receiving da'wah messages, the communication style used by a da'i is considered important to attract the attention of the mad'u so that the da'wah message is well received by the mad'u. The problem in this study is how the communication style used by Ning Umi Laila in the live Comal Pemalang.
The method used in this study is qualitative descriptive, using Norton's communication style which will produce descriptive data that is emphasized as deeply as possible through the theory of the communication style.
The results of this study provide an answer to the problem that the author found several communication styles used by Ning Umi Laila in delivering her lectures. This is in line with the 10 communication styles according to Norton that are applied in the parts of Ning Umi Laila's lectures, namely friendly communication style, animated style, dominant style, dramatic style, open style, argumentative style, relaxed style, attentive style, precise style, and memorable leaving style. Furthermore, for the intonation used by Ning Umi Laila in delivering her lecture using these communication styles, namely dynamic intonation, tempo intonation, and high-pitch intonation in the context of cheerfulness
HUBUNGAN PENGETAHUAN TENTANG FEKUNDABILITAS DAN SIKAP HIDUP SEHAT DENGAN PERILAKU REPRODUKSI SEHAT
No full textThe Objective of the research is to determine the relationship between the knowledge about fekundabilitas and healthy life style with healthy reproductive behavior in Depok.. The method which is used in this research is the correlation by survey research method. The technique of collected data using by test and non-tes with 80 respondents by multistage random sampling. The result of this research shows that the fekundabilitas knowledge and attitudes about healthy life style have a positive and significant relations with healthy reproductive behavior.</jats:p
Chen Ning Yang’s New Contributions After He Returned to Where He Started
No full text Chen Ning Yang returned to Tsinghua University as a full professor in 2003. Regarding the fact that very few people know what Professor Yang has contributed to science and to China after his return, in this article new contributions of Chen Ning Yang are introduced as far as the author knows, including his leading role in China’s sciences, the research in statistical physics, the role in cultivating gifted students, his research in history of science, and all other aspects relating to China’s developments. </jats:p
Analysis of remote sensing approaches used by Estonian forest management specialists
No full textMagistritöö
Metsamajanduse ja metsaökoloogia õppekavalUurimuse eesmärk oli selgitada metsasektori spetsialistide kasutusharjumusi ruumiandmete,
veebipõhiste kaardirakenduste ning GIS tarkvara kasutamise osas ning analüüsida
metsaspetsialistide eelistusi erinevate kaardirakenduste lõikes. Uurimuseks vajalikud andmed
koguti küsimustiku kaudu, millele vastas 53 metsamajandusega tegelevat spetsialisti nii
avalikust- kui erasektorist. Uurimuse tulemusi analüüsides selgus, et metsamajandamisega
tegelevad spetsialistid kasutavad oma töös sagedasti metsaregistri ja Maa-ameti avalike
teenuseid ning nendes olevaid ruumiandmeid. Ruumiandmete päringute tegemisel on tähtsal
kohal ka Fotoladu veebirakendus ning tööandja pakutav geoinfosüsteem. Vähem leiavad
rakendust drooniga jäädvustatud ruumiandmed ning kaarditöötlustarkvarad. Uurimuse
tulemustele tuginedes joonistusid välja erinevate kaardirakenduste ja ruumiandmete kogumise
puudused, millele andis autor võimalikud arengusuunad.The aim of the study was to examine the user habits of spatial data, web-based map
applications, and GIS software among forestry sector specialists, as well as to analyze their
preferences for different mapping applications. The data needed for the study was collected
via a questionnaire, which was answered by 53 forestry specialists from both the public and
private sectors. Analysis of the study's results revealed that specialists engaged in forest
management frequently use the Forest Register and the Estonian Land Board public services
along with the spatial data provided therein. The Fotoladu web application and the employerprovided
GIS also play an important role in conducting spatial data queries. Less commonly
used are spatial data captured by drones and map processing software. Based on the results of
the study, shortcomings in various map applications and spatial data collection methods
emerged, for which the author proposed possible development strategies
A genetic variation map for chicken with 2.8 million single-nucleotide polymorphisms
No full textWe describe a genetic variation map for the chicken genome containing 2.8 million single-nucleotide polymorphisms (SNPs). This map is based on a comparison of the sequences of three domestic chicken breeds (a broiler, a layer and a Chinese silkie) with that of their wild ancestor, red jungle fowl. Subsequent experiments indicate that at least 90% of the variant sites are true SNPs, and at least 70% are common SNPs that segregate in many domestic breeds. Mean nucleotide diversity is about five SNPs per kilobase for almost every possible comparison between red jungle fowl and domestic lines, between two different domestic lines, and within domestic lines--in contrast to the notion that domestic animals are highly inbred relative to their wild ancestors. In fact, most of the SNPs originated before domestication, and there is little evidence of selective sweeps for adaptive alleles on length scales greater than 100 kilobases
Graph based semi-supervised learning in computer vision:
No full textMachine learning from previous examples or knowledge is a key element in many image processing and pattern recognition tasks, e.g. clustering, segmentation, stereo matching, optical flow, tracking and object recognition. Acquiring that knowledge frequently requires human labeling of large data sets, which can be difficult and time-consuming to obtain. One way to ameliorate this task is to use Semi-supervised Learning (SSL), which combines both labeled and raw data and incorporates both global consistency (points in the same cluster are likely to have the same label) and local smoothness (nearby points are likely to have the same label). There are a number of vision tasks that can be solved efficiently and accurately using SSL. SSL has been applied extensively in clustering and image segmentation. In this dissertation, we will show that it is also suitable for stereo matching, optical flow and tracking problems.
Our novel algorithm has converted the stereo matching problem into a multi-label semi-supervised learning one. It is similar to a diffusion process, and we will show our approach has a closed-form solution for the multi-label problem. It sparks a new direction from the traditional energy minimization approach, such as Graph Cut or Belief Propagation. The occlusion area is detected using the matching confidence level, and solved with local fitting. Our results have been applied in the Middlebury Stereo database, and are within the top 20 best results in terms of accuracy and is considerably faster than the competing approaches.
We have also adapted our algorithm, and demonstrated its performance on optical flow problems. Again, our results are compared with the ground truth and state of the art on the Middlebury Flow database, and its advantages in accuracy as well as speed are demonstrated.
The above algorithm is also being used in our current NSF sponsored project, an Automated, Real-Time Identification and Monitoring Instrument for Reef Fish Communities, whose goal is to track and recognize tropical fish, initially in an aquarium and ultimately on a coral reef. Our approach, which combines background subtraction and optical flow, automatically finds the correct outline of multiple fish species in the field of view, and tracks the contour reliably over consecutive frames. Currently, near real-time results are being achieved, with a processing frame rate of 3-5 fps.
The recent progress in semi-supervised learning applied to image segmentation is also briefly reviewed.Ph.D.Includes bibliographical references (p. 54-55)by Ning Huan
Ideas from Baudrillard\u27s The Perfect Crime in Ning Ken\u27s novel Three Trios
No full textRoman Trije trii, ki je prvič izšel leta 2014, je prvo literarno delo, napisano v stilu, ki se imenuje ultra nerealno. Avtor romana je kitajski pisatelj Ning Ken, ki je ustvaril ta literarni stil. Roman je edinstven zaradi uporabe dveh različnih tipov besedil, to sta navadno besedilo in besedilo sprotnih opomb. Te Ning Ken uporabi kot enega od nosilcev pripovedi in ne le kot prostor za podajanje krajših pojasnil. Druga posebnost romana je, da se v njem prepletajo štiri različne pripovedne plasti. Roman je tudi zelo medbesedilen. V njem se večkrat pojavijo citati iz drugih literarnih in znanstvenih del, ki segajo vse od kitajske klasike Premene iz dinastije Zhou do idej francoskega postmodernističnega filozofa Jeana Baudrillarda. V magistrskem delu se osredotočam na povezave med romanom Trije trii in Baudrillardovim delom Popoln zločin. Ning Ken je v svojem romanu citiral delo Popoln zločin in Baudrillardove ideje tudi skopo komentiral. Baudrillardove ideje so v romanu Trije trii izrazito prisotne v eni izmed štirih narativnih plasti romana. Ta narativna plast se ukvarja s trpljenjem Juyan Zeja, ki ga pod vodstvom tajne skupine ZAZ zaslišuje avantgardni umetnik Fang Weiwei. Osrednja teza magistrskega dela je, da Ning Ken v romanu večkrat aludira na ideje iz Popolnega zločina. Povezave med obema deloma so prisotne na treh tematskih področjih, to so popoln zločin, realnost in umetnost.The Three Trios, a novel written by Chinese author Ning Wen and first published in 2014, is the first-ever literary work written in the style of ultra-unreal. The novel is unique in its use of two different text types, i.e., the plain text and the footnotes, the latter of which Ning Ken uses not only to give short explanations but also as a vehicle of the narrative. The novel interweaves four different narrative layers, and is hugely intertextual, quoting literary and scientific works ranging from the Chinese classic The Book of Changes to the ideas of the French postmodernist philosopher Jean Baudrillard. In this master thesis, I have focused on the links between the novel The Three Trios and Baudrillard’s work The Perfect Crime, which Ning Ken quotes several times throughout the novel. Ning also comments on Baudrillard’s ideas, which are present predominantly in one of the novel’s four narrative layers, the layer dealing with the suffering of Juyan Ze, a character interrogated by the avant-garde artist Fang Weiwei under the guidance of the secret group ZAZ. The central thesis of this work is that the ideas presented in The Perfect Crime are alluded to several times in The Three Trios. The connections between the two works are present in three thematic areas – perfect crime, reality, and art
PLA-bioplastist toote projekteerimine, arendus ning valmistamine 3D printeriga
No full textTöö eesmärgiks oli kasutades eelnevalt omandatud joonestamis- ja projekteerimisoskusi
raalprojekteerimises konstrueerida ja valmistada 3D-printeri abil keskkonnasäästlikust polümeerist
tarbeese. Keskkonnasäästlikuks polümeeriks valiti pikkade alifaatsete süsivesinikahelatega estrite
rühma kuuluvat materjali, mille nimetus on polüaktiid (PLA).
Tarbeplastid nagu polüetüleen (PE), polüpropüleen (PP), polüvinüülkloriid (PVC) ja polüstüreen
(PS) on tänapäeval laiemalt levinud kui bioplastide rühma kuuluvad plastid enda maksumuse ja hea
töödeldavuse tõttu, aga nende pikk lagunemisperiood, madalad mehaanilised näitajad peale
ümbertöötlemist ning vähesed utiliseerimisvõimalused on peamisteks põhjusteks mille tõttu on
lähitulevikus vajalik nende osatähtsust oluliselt vähendada ning investeerida bioplastidesse, mille
hulka kuulub ka PLA.
Mehaanilised katsed näitasid, et PLA kui materjal on rabe, aga tema mehaanilised omadused on
piisavad, et valmistada sellest argipäevaselt kasutatavaid tarbeesemeid, mis ei tööta löökkoormustele.
Jäiga ja vastupidava konstruktsiooni valmistamisel on tähtsamal kohal valmistatava eseme
materjaliga täiteprotsent ning prinditud materjali kiudude asetus jõu ja momendi rakendamissuuna
suhtes.
Detaili valmistamisel on soovituslik kasutada kallimaid printereid, millel on täpsem programm-
juhtimise süsteem. Lisaks parematele printeritele aitavad parema materjali struktuuri tagada
madalamad printimiskiirused ja ekstruuderi väiksema läbimõõduga printimispea.
Valmistatava tarbeese, milleks oli valitud joogitopsi- ja telefonihoidja, eesmärgiks oli tagada selle
modulaarsust, mille abil oleks võimalik kasutatava seadme lahti võtta ning viga saanud detaili uue
vastu välja vahetada. Valmistatud ja arendatud tooteprototüüp koosneb kolmest detailist mida
liidetakse omavahel kokku sangade abil ilma liimi kasutamata. Ühe detaili purunemisel on võimalik
vigastatud detaili koostust eemaldada ning uue detailiga välja vahetada, mis tagab pikema tarbeeseme
eluea ning oluliselt tõstab selle parandamisvõimalusi. Valmistoode ei vaja täiendavaid pakendeid ja
on peale puhastust kohe kasutamiseks valmis. Toodete saatmisel on aga võimalik kasutada
biolagunevaid pakendeid nagu kartong.With this thesis the author focuses on designing and manufacturing an object of utility made from
biodegradable polymer using knowledge in computer-aided design and 3D printing technology. The
material chosen to be used for production was polylactic acid, also known as polylactide (PLA).
Commodity plastics used in today’s manufacturing like polyethylene (PET), polypropylene (PP),
polyvinyl chloride (PVC) and polystyrene (PS) have a bigger market share than biodegradable
plastics due to the lesser cost of manufacturing and good processing properties, but their longer period
of degradation, low mechanical properties of recycled mass, and scarce options of recycling are the
main reasons why the industry should lower their market share and invest in more environment-
friendly biodegradable polymers like PLA.
Mechanical tests showed that PLA is a brittle material, but its mechanical properties satisfy the
requirements to manufacture the commodity items used in everyday life which are not affected by
impact loads. In order to manufacture a rigid and durable product, the infill and fiber orientation in
relation to the momentum and force should be taken into account.
In product manufacturing, the structure and quality of the final product is closely related to
computerized numerical control algorithms of a particular 3D printer. In addition to that, a slower
feed rate of material and a smaller nozzle of the extruding unit aid to achieve better results of 3D
printing.
The main goal of the design was to make the final product modular, which would improve its
repairability and service life – the product consists of three parts joined together by glue-free clamp-
based joints, allowing to swap damaged parts out. It is free of packaging and ready to be used after
the final refinement. Shipping and handling the product to an end-user is possible by using cardboard-
based packaging which is biodegradable and environmentaly friendly
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