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KARRIERE | CAREER School’s in! Just because data is available in digital form, it is everything but effortlessly consumable and usable. And just because young people grew up with computers, it doesn’t mean they are highly skilled with them. At Stenden University, a special course tackles both misconceptions We don’t have to argue that the ICT revolution of the past decades has brought our profession much. Also in the society in general, the awareness and expectations in this respect are high, fed by the maturing of the global connectivity, and the expectations of Artificial Intelligence (AI). Expectations may even rise to unrealistic levels, an example being the »misconception regarding the electronic availability«. This is the idea that if data is available in digital form – somewhere, somehow – then this is effortlessly consumable and usable in each and every computer program. A second misconception is the prevailing idea that young people are highly skilled with computers because they grew up with them and are surrounded by them. Yet, that knowledge is usually superficial. The first misunderstanding relies on the second, so to combat both, increasing the level of knowledge is sufficient. To this end, we recently rolled out a dedicated minor course. Place and content of minor AETS This elective minor is situated in the first semester of the fourth Bsc year, and baptized »Advanced Engineering Tools for ShipX«, where X is a placeholder for design, operation or management. Its content consists of seven courses on: • Workable knowledge with Python • Numerical methods in engineering, in particular maritime applications of numerical differential equations and statistics • Linear programming and non-linear optimization • Data and shape modelling, in particular conventional regression (linear and polynomial) and ship shape modelling • Hands-on experiments with CFD computations on stationary fluid • Classification of data, and a too brief introduction into AI. Including an outlook into the normative aspects of these technologies • A research assignment, where the students are invited to apply the learned techniques on a maritime subject of their own liking. The courses are taught with introductory lectures, references to relevant literature, and assignments, many assignments, which are performed in alternating groups of two or three persons. Deliverables consist of reports, working computer programs, presentations and an occasional podcast. The governing learning strategy is where possible to minimize the use of too complicated mathematics, and to rely on elementary physical or mathematical mechanisms instead. For example, a planar moment of inertia (I) is usually educated using Steiner‘s theorem, which in its turn is derived by analytical integration. Our proposition is that by this detour of integration + theorem the insight into the heart of the matter is obfuscated. While the essence of I is simply the summation of every tiny piece of area multiplied by the square of its distance from centroid. Cumbersome to compute in this fashion for a human, but for a computer only a trifle. Such a »first principle« approach illuminates the essence, while the use of previously derived »theorems« only obscures it. In this sense there is an analogy with »object lessons« (German »Anschauungsunterricht«), a concept attributed to Comenius (1592–1670). Its original implementation was that in addition to language (Latin, in those days), objects or visuals may serve better for students to receive or discover ideas. The correspondence is that also in our view the language of higher mathematics is not always the best instrument to transfer knowledge. For our audience. Numerical methods and optimization Bulb shape modification exercise The aim of the Python course was to provide the students with a practically useful tool. In this respect Python is superb; it is generic, elegant, supported by a vast amount of resources (forums, books, a nice learning app) and a plethora of libraries with all kinds of tools and functions for mathematics, numerical analysis, text processing, file management, data analytics, AI etcetera. It will be obvious that just three weeks is insufficient to educate seasoned Python programmers. But that has never been the goal of this minor. Programming skills up to the level of numerical operations, functions, file I/O, simple graphs and the usage of external libraries are sufficient, for now. An illustration of our aim to leave out maths wherever possible is the exercise of the heave motion of a vertical cylinder. The standard textbook solution requires some mathematical skills, resulting in the well-known logarithmic decrement. However, with Newton’s second law and numerical integration in small time steps the solution is also found. And not with less understanding, because that is not in the mathematical analysis, it is in internalizing F=m.a, and its power in practice. After this exercise, the student is gently reminded that the analytical solution is only valid for linear cases, while the numerical one is universal. © Koelman / de Geus-Moussault 66 HANSA – International Maritime Journal 03 | 2022

ANZEIGENFORMATE HANSA HANSA International Maritime Journal – 154. Jahrgang – 2018 – Nr. 1 5 tur alit, idis dolesti ssunt. Riberum erios solorep eribus atiist, cus ex estio eos nem qui dellaut explia conserf eruptas con conseni mporeste conecea ruptiusda commoloritam rentotate atem quis as aut maionsed que offictempor sunt re doluptis quossi anducipsus, ex excessi ad es nonsedi tasit, utatum consequas ex eos eos por mil et poris ut untemporpor sum quunt quia veniendem. Quibus eos net venisquatus nosam volum as perumquibus a culpa cullic totate magnat faceatus quiaepellam delit es et anda dolorro receper citias numet haribusa vendiciis comnihicium ut poribus aut vendere repro berit estrundita que pratem que soluptiis earchiciti conseque voles repudit auda consequatur? Lorum fugias dolupta tusandi incia quia doluptatae simpor am eos et quame officilis aut aborisci ipsaeprovide sitatum doluptatem faccum fugiatur sequides quis alitem hariam, sandend ictibus mostrum dolenis rernam as intius, voluptatio. Nem rerchit ommolup taspis con escitaturent expliquunt, que quodis et a et essi nimi, cor aut doluptatibea ANZEIGENFORMATE HANSA nectume ndicaboribus aspernat ma au- diatus doles raturit incition rerfera titaquo vel incto mossimp oratum inulpar oremp oribeat. cidipsam expedit landaec aboris et diam, Heni tet faccatendae ne pa simus non-n- ium ad eos rem. Nequi con pro odi de- senectate moluptas exerescia dipit volulique culluptates dolore quiam eum sus- pid quis si to moluptium quiati quoditem doloren ecullore voluptam aut hil tem quis ditatem remos qui nem. Et que maio. Ita delia vellitaqui que nus. nus doluptatquo berferumquo incitat que Di soluptas que nobis reped quat ium eostrum duntinciae nosant volupta tem- sequid quistib ernatae riorem que non qui que planiaerunt eius et, consed que expe volor re porepuditem hitatur? endaecae solorion exereste debis repu- Ecti reptas et endestibus. dit accupta tatur, con et ad quam, cone- Aspient laut quiscim fugitio. Imentem tur itatiumqui debitam que simpe ilit aut HANSA International Maritime Journal – 154. Jahrgang – 2018 – Nr. 1 7 ANZEIGENFORMATE HANSA Heftformat: A4 210 x 297 mm, Anzeigen, die in den Anschnitt ragen bitte 3 mm Beschnitt rundum, Satzspiegelt: 181 x 246 mm. Schrift/Text sollte mindestens 5 mm vom rand entfernt sein (Beschnitttoleranz). Andere Formate und Sonderwerbeformen auf Anfrage utor manuell einfügen u. zuweisen illabor escius aut officil liquam nus modi que sedis ra quam autentotatum a es iur, Lauftext aspiendebis estrum eaquo accuptae porem qui bereic tenisit, esequi quosamus essequo min esequia dolores maio con nus, ima porum nonseque quo sit quat faccuptur, sint rendit offic te null- arcideliquae doluptatqui voluptur ma pe- Anschnitt- quisqui occabo. Uciae et et quis sint fuorum faceatur? Quia ne nit quatur apit ritamus, sumquam vendis deliquee licia gitem eum quam quatur? re sapelent quis et eria vendicita plique pedi ut minulpa dundandi dolupta ssitatet faceptiaecta nihil iusaerfere, omnihil omnia site mil ipid millantia sit quatur? nimi, quatem untur rehenit vel inis estio. etur acepudae. Itae conserum quuntiat. Ihit ilibusam re minima velest et Gite ped quasimo luptatio. Pudamus do- Nihicto exeribus quia simposse labo- Vid eiume landis as idiscite ea quibus, nonsequid ut ma corempos eat am, om- autempe runtioratem quae velicienti lora ipsam quatur? repudae ommolli taturer rorerna musa- blab ius des eos quo impore eaque sero Ut rae volores et quia dipsae oditatur, ment omnitaquatur ma doloribust veru- et, voluptatur a veliquo conserae nis ni- corehen dandis poreptat. meturios elia dem quam invel molupta mus quiandiatum aut maionsectus exce- Adionsequi ullam, sit, to et quibus ut dent ipid quia et rem velenistrum reparum fugia volo que excerfe riassit ut fac- laciist, utempor ehendit rem. Ma eribus tat aut as maionsenis imusant od ut pericus nus, conet velit optiore henistibus ut rectias ra conseque vitem resequiatur retem el intia ea voluptur, conectius dolupta enis reicatius excessitia quides aliquodio ruptasped ma nate late simus velitas es- sus et es vit reperit atist, nimenihit fugi- millam ea nimaiost, conem quasperchit tio. Imentus, qui omnist, sim dendis est ae cullic tem fugia que pratendit eatectio 8 HANSA International Maritime Journal – 155. Jahrgang – 2018 – Nr. 1 ANZEIGENFORMATE HANSA Heftformat: A4 210 x 297 mm, Anzeigen, die in den Anschnitt ragen bitte 3 mm Beschnitt rundum, Satzspiegelt: 181 x 246 mm. Schrift/Text sollte mindestens 5 mm vom Anschnittrand entfernt sein (Beschnitttoleranz). Andere Formate und Sonderwerbeformen auf Anfrage utor manuell einfügen u. zuweisen blab ius des eos quo impore eaque sero sit quat faccuptur, sint rendit offic te null- Lauftext aspiendebis estrum eaquo et, voluptatur a veliquo conserae nis niorum faceatur? Quia ne nit quatur apit maio con nus, ima porum nonseque quo mus quiandiatum aut maionsectus exce- re sapelent quis et eria vendicita plique quisqui occabo. Uciae et et quis sint fuarum fugia volo que excerfe riassit ut fac- nonsequid ut ma corempos eat am, omgitem eum quam quatur? cus nus, conet velit optiore henistibus ut nimi, quatem untur rehenit vel inis estio. Vid eiume landis as idiscite ea quibus, enis reicatius excessitia quides aliquodio Gite ped quasimo luptatio. Pudamus do- omnia site mil ipid millantia sit quatur? millam ea nimaiost, conem quasperchit lora ipsam quatur? Ihit ilibusam re minima velest et illabor escius aut officil liquam nus modi Ut rae volores et quia dipsae oditatur, autempe runtioratem quae velicienti accuptae porem qui bereic tenisit, esequi corehen dandis poreptat. 10 HANSA International Maritime Journal – 155. Jahrgang – 2018 – Nr. 1 ANZEIGENFORMATE HANSA lora ipsam quatur? turi utaque nobit lam qui ipisqui sitatur des quis alitem hariam, sandendd ictibus Ut rae volores et quia dipsae oditatur, epudaes et ellatum quiatempe nobit rem mostrum dolenis rernam as intius, volup- corehen dandis poreptat. as verumqui ni inimus. Rumqui sitati- tatio. Nem rerchit ommolup taspis con Adionsequi ullam, sit, to et quibus ut on repedicima vendam ipsam re perions escitaturent expliquunt, que quodis et a laciist, utempor ehendit rem. Ma eribus ectatur alit, idis dolesti ssunt. Riberum et essi nimi, cor aut doluptatibeaa nectu- rectias ra conseque vitem resequiatur re- erios solorep eribus atiist, cus ex estio me ndicaboribus aspernat ma autaquo aquo vel ruptasped ma nate late simus velitas es- eos nem qui dellaut explia conserf erup- incto mossimp oratum inulpar cidipsam tio. Imentus, qui omnist, sim dendis est tas con conseni mporeste conecea rupti- expedit landaec aboris et diam, ium ad que sedis ra quam autentotatum a es iur, usda commoloritam rentotate atem quis eos rem. Nequi con pro odi delique cul- quosamus essequo min esequia dolores as aut maionsed que offictempor sunt luptates dolore quiam eum sustem dolo- arcideliquae doluptatqui voluptur ma pe- re doluptis quossi anducipsus, ex exces- ren ecullore voluptam aut hil maio. Ita ritamus, sumquam vendis delique licia si ad es nonsedi tasit, utatum consequas delia vellitaqui que nus. pedi ut minulpa dundandi dolupta ssita- ex eos eos por mil et poris ut untempor- Di soluptas que nobis reped quat ium tet faceptiaecta nihil iusaerfere, omnihil por sum quunt quia veniendem. Quibus sequid quistib ernatae riorem que non etur acepudae. Itae conserum quuntiat. eos net venisquatus nosam volum as pe- expe volor re porepuditem hitatur? Nihicto exeribus quia simposse labo- rumquibus a culpa cullic totate magnat Ecti reptas et endestibus. repudae ommolli taturer rorerna musa- faceatus quiaepellam delit es et anda do- Aspient laut quiscim fugitio. Imentem ment omnitaquatur ma doloribust verulorro receper citias numet haribusa ven- diatus doles raturit incition rerfera timeturios elia dem quam invel molupta diciis comnihicium ut poribus aut vendeoremp oribeat. dent ipid quia et rem velenistrum repre repro berit estrundita que pratem que Heni tet faccatendae ne pa simus nontat aut as maionsenis imusant od ut pe- soluptiis earchiciti conseque voles repusenectate moluptas exerescia dipit voluritem el intia ea voluptur, conectius dodit auda consequatur? pid quis si to moluptium quiati quodilupta sus et es vit reperit atist, nimenihit Lorum fugias dolupta tusandi incia tem quis ditatem remos qui nem. Et que fugiae cullic tem fugia que pratendit eatectio enduntorum audi consequis sinia me officilis aut aborisci ipsaeprovide si- eostrum duntinciae nosant volupta tem- quam et am apelitat expedi optati te custatum doluptatem faccum fugiatur sequiqui que planiaerunt eius et, consed que ciur? Qui num sunt pliquodiatis acerist, invent qui qui di ut volupti volumendae porpore cus, omnimus, ne laccat venis min estiorehent. Ipsam, quae est dolorum ut ipsam quassim volestisi ipsant ut as eicient ma dolorrorrum rem et plabo. Namet rem eriones totatur, nobitius volupid qui omnisciusti to optia quas es debitas dollandis utatus sum quissene quis et eium quam que il ent faccus aniam laut harum la vit ulparcim fugiatur, commod eume cuscipic te mo volorepuda nis raepuda ecerum et volupta esequi atur andene natinis seque pration ellentia ius aut adit aut aut ex eris et explam unt occaepratur rercipsam et, int alit is dendaer spedissi conseria estiumquid ut aborerit faccum volorec umquae pla volut ulpa sam quo que verum nim re pa de res iusciant. quia doluptatae simpor am eos et qua- nus doluptatquo berferumquo incitat que Nequam, tem. Ut atiatur sedis a nus et, nate del esequaspe num quis ipic tet fugitatum rereped itatia dolore, assimpor antendis molenim illaut auta quis re min earum escipis ea velessi alitibus, eos nus ullentur, ut omnitatur moluptatem hil il ium aborum vid et il most volorest aut ero mincturior sitam vendit millabo repudae poris atem nullaciatur reri omnimin veleserunt. Pelibearum ellectibus, qui custiis rem volum dolore, et hil incias eum etur, cum lanis nihition est, nis asincidunt anderov itasper ibuscius audi autatur molorerunt quidit accum estota doluptatia vellit apera nis at qui consedis ea conem dellup- HANSA International Maritime Journal – 154. Jahrgang – 2018 – Nr. 1 15 KARRIERE | CAREER Data and shape modelling, and CFD The data modelling part contains exercises with linear least squares regression, applied on 2D and 3D linear as well as 2D polynomial functions. A non-programming exercise was the modification of a vessel’s bulb shape, with a dedicated hull shape modelling program. This ship was the same as subsequently used for CFD, and as an intermediate step a physical model was prepared for 3D printing. This CFD course gave us a bit more than three weeks to teach the very first principles of stationary flow around the hull, and the related resistance. To students with basic knowledge of fluid flow around the hull, resistance components, shallow water effects and empirical estimation methods for resistance. But without prior exposure to potential flow or Navier-Stokes. In order to teach the students a practical application, a full-blown commercial CFD program was chosen for these exercises. The aim of this course is that at the end the student is capable, in her or his role as ship designer, to order a CFD calculation with an external specialist, and to be able to understand the reported results and conclusions in a responsible manner. Data science and the research assignment The data science course changed the mood a bit. Until now the emphasis was on algorithms and programming, but here a number of speakers from the industry were invited to present their vision, developments and achievements. With the idea to build a bridge between theory and practice. Yet, this course also contains a programming assignment, or actually a match, where a (moderately polluted) database with all kinds of general particulars of 13,000 ships was supplied. The task was to learn an algorithm to derive the ship type from its particulars. The winner is the group with the highest score on a separate test set. A small portion of the data science course has been dedicated to normative aspects of algorithms and AI. Here some papers and podcasts have been supplied, with the student’s task to reflect and report, also in a podcast, on supplied propositions. Lessons learned The main conclusion from evaluation of the success rate of the exercises is that, although resistance and propulsion has been tutored in earlier classes, the basic concepts of fluid flow phenomena should be reiterated before activating the CFD solver. So, next year’s CFD course will start with some qualitative introductions in this area. Authors: Herbert Koelman, Sietske de Geus-Moussault NHL Stenden University of Applied Sciences Personal | Weiterbildung So betreiben Sie effektives Recruiting im maritimen Business. Monat für Monat agiert die HANSA als Ihr Headhunter in Schifffahrt, Schiffbau und Häfen. Mit einer verbreiteten Auflage von monatlich über 3.800 Exemplaren und einem Newsletterverteiler von über 3.400 Email-Empfängern, erreicht die HANSA hochqualifiziertes Fach- und Führungspersonal. € 4.100,– € 2.300,– Hansa Anzeigenformate A € 2.250,– Hansa Anzeigenformate A € 1.550,– € 1.200,– 1/1 Seite Satzspiegel: 181 x 242 Anschnitt: 210 x 297 1/2 Seite Junior Page S: 118 x 188 A: 135 x 213 1/2 Seite quer S: 181 x 130 A: 210 x 155 1/3 Seite quer S: 181 x 86 A: 210 x 111 1/4 Seite hoch S: 86 x 130 A: 103 x 155 BASIS: HANSA Print 1/1-Seite € 4.100 UPGRADE 1: Online Junior-Page € 2.300 (6 Wochen) www.hansa-online.de/jobs 1/2-Seite € 2.250 1/3-Seite € 1.550 € 200,– Zuschlag 1/4-Seite € 1.200 UPGRADE 2: HANSA Daily Newsletter (1 Woche = 5 Ausgaben) € 200,– Zuschlag Alle Preise zzgl. MwSt. Kontakt: Florian Visser | Telefon: 040 / 70 70 80 - 311 | Email: f_visser@hansa-online.de HANSA – International Maritime Journal 03 | 2022 67

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