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Repository
Aircraft Design and Systems Group (AERO) @ Hamburg University of Applied Sciences - Prof. Dr. Scholz (Reports @ AERO)
Reach this repository via:
http://repository.ProfScholz.de
See what you are allowed to do:
http://RepositoryPolicies.ProfScholz.de
This repository has two collections A) and B):
A) Student Results: Project Report, Bachelor Thesis, Master Thesis, Diplomarbeit, Dissertation (ETDs)
Digital Library - Projects & Theses - Prof. Dr. Scholz
Browse: http://Library.ProfScholz.de 
On the page of this collection: Make use of the search function from the browser!
Search this collection. Text search for Names, Titles, Keywords (German and English), DDC, RVK Descriptors.
B) Research Results from AERO: Reports, Technical Notes, Memos, and Papers (if not disseminated otherwise)
Reports @ AERO
Browse: http://Reports-at-AERO.ProfScholz.de
On the page of this collection: Make use of the search function from the browser!
Both collections are harvested by:
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... listed by:
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Collection A) is harvested by: stored by:
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Library on WorldCat
WorldCat Registry ID: 263356
ISIL: OCLC-DEADS
We started as a
Library on
WorldCat ("the world's largest library catalog, helping you find library materials online")
with only a small number of
Items so far - but growing!
WorldCat: "Ask a Librarian"
If you cannot find on this page what you need, find your contact to ask at AERO!
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New Documents
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About the Repository --- Table of Contents
Documentation Quality - Archiving and Dissemination
The OAI-PMH-Compatible Static Repository
Report Preparation for Delivery
1) A Uniform Resource Name (URN) for the Report
2) Digital Object Identifier (DOI) for Published Research Data
3) Documentation Page
4) Submit Metadata
Hints on Metadata
Producing PDF/A
Validating PDF/A, Correcting PDF/A
The Logo
More Hints
Documentation Quality - Archiving and Dissemination
Documentation Quality is about: 1.) research methods, 2.) scientific writing, 3.) document archiving and dissemination. This is about No 3.
This is what (at best) documents in this repository should have:
- Documents are prepared as PDF/A to be long time readable. PDFs are enhanced with a PDF Table on Contents for easy access. In addition they are linearized for fast web view.
- Data is stored in Harvard Dataverse
and linked with DOI from DataCite to the document.
- Documents are delivered to the
Institutional Repository of Leibniz Universität Hannover (LU Hannover) for:
Indexing in repository, DOI allocation issued by DataCite,
Archiving in TIB
with certificate from DINI,
Indexing in the German Common Union Catalogue (GVK),
which is also the bridge to the Library Catalog of HAW Hamburg. Furthermore:
Dissemination to Open Access Harvesters
(OpenAIRE,
BASE,
CORE).
Metadata is offered for Google Scholar harvesting.
Occasionally, metadata is written to OAIster/WorldCat, but this is rather a nuisance, because delivered datasets are of lower quality than our own (see below) and generate redundant double entries.
- Documents are delivered to the German National Library -
Deutsche Nationalbibliothek (DNB) for:
Indexing, URN allocation, and Archiving.
- Documents are delivered to the
Internet Archive for Indexing, Archiving, and
ARK allocation.
- Documents are also presented on their respective Landing Page
(example)
at HAW Hamburg with much metadata for enhanced inclusion into Google Scholar, Semantic Scholar, and Dissemination on Social Networks.
Visible to Altmetrics are my mentions on Twitter (see above), Facebook, YouTube, and Mendeley.
In addition, I mention the new report on LinkedIn and archive the Landing Page in the WaybackMachine (Internet Archive).
- Metadata is delivered directly to OAIster/WorldCat.
Summing up: This Repository uses various offers available outside HAW Hamburg. Documents and their content is prepared to be ...
- Available (stored/archived - long term): DNB, TIB, Archive.org
- Discoverable (citable/retrievable - reliably): DOI, URN, ARK
- Reproducible (readable/accessible - also in the future): PDF/A
Our documents can be found here:
As explained, to some databases I make/initiate an upload (DNB, LU Hannover => DataCite, Internet Archive, WorldCat).
Some databases crawl registered repositories at irregular intervals (see our own registrations listed above).
Again other databases (Google, Semantic Scholar) crawl the whole web and eventually also find our contributions.
Links are provided on each Landing Page, so that coverage can be checked easily.
It is understandable that new documents will have limited coverage, but that coverage growth over time for each document.
Full coverage may only be reached after one year.
I continue work on having the repository registered at additional databases and to improve and standardize metadata to receive even better scores to increase upload probability.
At LU Hannover three links are differentiated for my delivered data:
Scholz, Dieter (Author)
Scholz, Dieter (Editor)
Scholz, Dieter (Contributor, Supervisor, Examiner)
The OAI-PMH-Compatible Static Repository
In order to supply distributors like WorldCat,
with an
OAI-PMH-compatible repository, the file
Repository1.xml was built with Microsoft Access and a standard text Editor.
The repository scores
74.2%
towards fulfilling requirements (2013 standards) for its OAI interface according to the
DINI-Certificat (2016) for Open Access Repositories.
A higher score is not possible, because this repository is a simple
OAI Static Repository.
Static Repositories are by definition not able to support
- Sets
- a "Deletion-Strategy"
- a "Resumption Token"
However, this deficiency is not a practical problem, because these three features are not really needed for a small repository.
- The information expected at the level of the "Sets" is included in each Record. It is: "open_access", DDC-Category, and Document Type.
- Records will not be deleted from the repository and hence a "Deletion-Strategy" is not needed.
- The repository is relatively small and a break (with later resumption) during ingestion is not needed.
As required by DINI, the repository uses the
Controlled Vocabulary for Resource Type Genres
in its Document-Type-Identifier. E.g.: <dc:type>doc-type:studyThesis</dc:type>.

Working principle of a static repository.
This repository provides what is named "http://site1.org/mini/file1" in the figure with
Repository1.xml.
Report Preparation for Delivery
The repository collects reports (Project, Bachelor or Master Thesis, Technical Note, ...) prepared by students and staff working with Prof. Scholz.
Uploads are organizied by personal communication. Nevertheless, an upload should be prepared as outlined here.
The report has to meet (up to date) publication standards:
- The report has to have a Uniform Resource Name (URN)
- Research data (calculations, data, statistics) going along with the report has to be published before the report is finalized
and has to be identified with a Digital Object Identifier (DOI)
- The report has to have a Documentation Page located behind the Title Page(s) and before the Abstract.
The Documentation Page shows text in which the actual URN - and DOI(s) if applicable - are embedded.
- Metadata describing the report formally has to be generated.
1) A Uniform Resource Name (URN) for the Report
You have to use a Uniform Resource Name (URN) for the report. A URN is a
persistent identifier
that will never break (if properly maintained), so that anyone can always refer to this name.
You will later link to your report e.g. like this:
http://nbn-resolving.org/urn:nbn:de:gbv:18302-aero2017-12-13.019 .
This is an example of a URN as used by Prof. Scholz at HAW Hamburg:
urn:nbn:de:gbv:18302-aero2017-12-13.019
The URN is part of the URL (the link). The last digit is called check digit. The date in the URN (above: 2017-12-13) is the delivery date of your report (as given on its front page).
This is the date you (intend to) submit your report. Get your unique URN and put it into your report:
2) Digital Object Identifier (DOI) for Published Research Data
Also the DOI is a
persistent identifier
that will never break (if properly maintained), so that you can always refer to this name.
Prof. Scholz will store your research data for you in
Harvard Dataverse.
You will later link to your research data e.g. like this:
http://doi.org/10.7910/DVN/2HMEHB .
This is an example of a DOI from Harvard Dataverse:
10.7910/DVN/2HMEHB
The DOI is part of the URL (the link). If you do not have any reseach data to publish, you can skip this point. Otherwise:
Deliver your data to be uploaded at Harvard Dataverse to Prof. Scholz. In return, you will get the DOI.
3) Documentation Page
Get the template for you Project, Bachelor or Master Thesis, :
TitleAndDocumentationPage.docx
Size:
825K
The template is for a project, but the documentation page would be the same also for a thesis.
Put the generated URN and the DOI (if you have research data) into the documentation page!
4) Submit Metadata
Some data is in German. Skip this (input xxx in the form), if you are not able to provide this data.
This is what needs to be considered / provided to Prof. Scholz:
4.1) 3 Dewey Decimal Classifications (DDC) and 3 related German "Sachschlagwörter" (GND) [also called: Sachschlagwort (SWS)] from:
Klassifikation_DDC_629.13.pdf
Size:
374K
Select e.g. 2 from the scientific field and one from the aircraft type under consideration.
4.2) One more (Nr. 4) Sachschlagwort (GND) (to give more freedome to describe everything of importance).
4.3) A class from Regensburger Verbundklassifikation (RVK):
Klassifikation_RVK_ZO7000.pdf
Size:
231K
4.4) 4 Standardized English Keywords from FAST (Faceted Application of Subject Terminology) / Library of Congress Subject Headings (LCSH). See Link below!
All the data will be on the Landing Page for the report in the end.
It will be available for Google & Google Scholar and will be used for the uploads into the DNB and into the Repository in Hannover.
Example: LandingBurzlaff.html
Hints on Metadata
Dewey Decimal Classification (DDC) 
DNB: Einführung in die Dewey-Dezimalklassifikation
WebDewey Search
Gemeinsame Normdatei (GND) u.a. mit Sachschlagwörtern (SWS) 
DNB: Einführung in die Gemeinsame Normdatei (GND)
Online Suche nach Sachschlagwörtern - Eingabe des Stichwortes 
Online Suche nach Sachschlagwörtern - Eingabe der DDC (DDC-Eingabe im Link!)
Regensburger Verbundklassifikation (RVK) 
RVK Online
Library of Congress Subject Headings (LCSH) via FAST - Standardized English Keywords 
OCLC: Introduction: FAST (Faceted Application of Subject Terminology) derived from the Library of Congress Subject Headings (LCSH)
Manual selection of FAST Subjects based on autosuggest technology
(Help on usage)
Producing PDF/A
The PDF is not produced with the "Print"-Menue, but with "Save As". From there "PDF or XPS" is selected. Further options to select are shown in the screen shot below.
Validating PDF/A, Correcting PDF/A
If checked against the standards, most PDF/As produced show some errors.
It seems PDF/A is of better quality, if produced directly from the text processor rather then produced as PDF and converted subsequently to PDF/A from a PDF to PDF/A conversion.
Use one or several of these PDF/A validators to see if your PDF/A qualifies:
If the PDF/A does not qualify try to convert the file e.g. to PDF/A-2A with PDFEN or another tool:
The Logo
The logo is the symbol for a landing aircraft. It links to the topic of this repository: "aviation".
Moreover, the logo stands here for the collection of landing pages.
Landing pages contain the (machine-readable) metadata to feed especially Google Scholar.
As such, landing pages are key for the documents to be precisely found on the Internet.
Also Google Custom Search - searching locally in this repository - depends to a large extend on what is contained on the landing pages.
Note: An aircraft flying down the Instrument Landing System (ILS) with a glide slope of 3° and a typical Angle Of Attack (AOA) will have a nose up attitude.
We stick here to this international symbol, because an aircraft nose up would be interpreted as an aircraft taking off.
More Hints
More Hints on Report Preparation from a Workshop: EWADE
Archiving Strategy (written for EWADE)
Information for Authors: Producing PDF/A (written for EWADE)
Searching on Semantic Scholar
Initiate an example search based on Publication Year and Title:
In general, write your request like this:
https://www.semanticscholar.org/search?year[0]=yyyy&year[1]=yyyy&q=Title&sort=relevance&pdf=true"
Where:
yyyy is the year of the publication
Title is the title of the publication
Example:
https://www.semanticscholar.org/search?year[0]=2015&year[1]=2015&q=Aerodynamic Analysis with Athena Vortex Lattice (AVL)&sort=relevance&pdf=true
Resolving of URNs and DOIs
See
here.
LAST UPDATE: 20 February 2021
AUTHOR: Prof. Dr. Scholz
IMPRESSUM (PDF)
Prof. Dr. Scholz
Aircraft Design and Systems Group (AERO)
Aeronautical Engineering
Department of Automotive and Aeronautical Engineering
Faculty of Engineering and Computer Science
Hamburg University of Applied Sciences