Quay Cranes Weight Management Problems

Abstract The employment of quay cranes assumes a variety of functions. Due to this, problems concerning scheduling and assignment of quay cranes arise. Cranes are to perform a variety of tasks when they are assigned to vessels.Advertising We will write a custom proposal sample on Quay Cranes Weight Management Problems specifically for you for only $16.05 $11/page Learn More The main issues researched in this matter are safety during the operation of quay cranes, algorithm of vessel priority and the pattern of assignment of cranes to new vessels when their previous tasks are complete. Literature Review In the contemporary world international trade is vital for the development of the world’s economy. Maritime transportation is one of the most cost-effective and popular means of international trade. Goods are handled at ports, where the container traffic experiences rapid growth lately. For the optimisation of container traffic quay cranes are utilis ed. Currently there are three main problems considering the operation of cranes: assignment of cranes to vessels, the issue of quay time and service assignment, and the problem with scheduling of containers handles by quay cranes and their sequence. This paper provides a literature review of seven papers studying these issues. In the article called â€Å"Quay crane scheduling problem† the authors recognise the problem with quay crane scheduling due to the growth of container traffic. The sequence of discharging needs to be determined for a set number of cranes, which will shorten the time of task completion [1]. The important aspect of scheduling is the creation of balance between the stacks of loads and the number of bays. It is suggested that more thorough approach towards stacks and loads planning in each bay will optimize the operation of quay cranes.Advertising Looking for proposal on engineering? Let's see if we can help you! Get your first paper with 15% OFF Learn More The paper titled â€Å"The dynamic berth allocation problem: A linearised  formulation† by Simrin and Diabat suggests that a progress in quay crane utilisation can be achieved by means of optimisation of container terminal operations [5]. Berth allocation problem or BAP is viewed as one of the major challenges in this sphere. The problem was addressed through an application of genetic algorithm heuristic which was used for various aspects of the problem. The obtained results were tested in order to identify the best, worst and average outcomes. The authors of the study called â€Å"A joint quay crane assignment and scheduling problem: formulation, solution algorithm and computational results† offer a simplified approach towards the problem of quay crane scheduling and integrated assignment. The problem is viewed from the perspective of a crane-to-bay assignment [6]. As a result a Lagrangian relaxation algorithm is developed in order to solve the proble m. After that the relaxed problem is solved through the constraint generation method and the performance of the Lagrangian heuristic is evaluated. In the paper called â€Å"An integrated quay crane assignment and scheduling problem† Theodorou and Diabat view container handling efficiency as the productivity of quay cranes responsible for such operations as loading and unloading of containers [7]. The authors develop a formulation for quay crane assignment. Quay crane scheduling problem is addressed with the help of genetic algorithm and the results obtained after the application of the algorithm are evaluated to determine the efficiency of calculations. Fu and Diabat, the authors of the paper titled â€Å"A Lagrangian relaxation approach for solving the integrated quay crane assignment and scheduling problem† offer an alternative approach to the problems of quay crane integrated assignment and scheduling.Advertising We will write a custom proposal sample on Quay C ranes Weight Management Problems specifically for you for only $16.05 $11/page Learn More It is recognised that these two issues are always addressed independently from each other. As an alternative, Fu and Diabat suggest addressing them simultaneously this time and offer a mathematical formulation for these problems [2]. The calculations take into consideration quay crane interference. The proposed model is addressed with the help of Lagrangian relaxation and the results are evaluated. In the paper by Fu, Diabat, and Tsai called â€Å"A multi-vessel quay crane assignment and scheduling problem: Formulation and heuristic solution approach† the authors approach the problem with the assignment of quay cranes to vessels and the tasks fulfilled by cranes in a sequence [3]. Important factors such as safety of distances between operating quay cranes, priority of vessels and ordering conditions are taken into consideration in the course of calculations. Sinc e the problem is complex and has many layers, a genetic algorithm is applied to it. The evaluation of the obtained results confirms their validity. The study by Simrin, Alkawaleet and Diabat titled â€Å"A Lagrangian Relaxation Based Heuristic for the Static Berth Allocation Problem using the Cutting Plane Method† maintains that there is a variety of approaches to the solution of berth allocation problem. The difference between these approaches is the way they view berth allocation, as a static or dynamic problem [4]. The layout applied to quays is also different – it can be continuous, discrete or hybrid. Berth allocation problem is viewed as a vital aspect of optimization of work of quay cranes just like in the article called â€Å"The dynamic berth allocation problem: A linearised formulation† by Simrin and Diabat.Advertising Looking for proposal on engineering? Let's see if we can help you! Get your first paper with 15% OFF Learn More In the present article the authors use Lagrangian relaxation with the application of cutting plane method and ran it on various aspects of the problem. References [1] N. Al-Dhaheri and A. Diabat. â€Å"Quay crane scheduling problem,† JMSY,  pp1-8, Feb. 2015. [2] Y. Fu and A. Diabat. A Lagrangian relaxation approach for solving the  integrated quay crane assignment and scheduling problem. Applied Mathematical Modeling, vol. 39, pp1194–1201, Mar. 2015 [3] Y. Fu, A. Diabat, and I. Tsai. â€Å"A multi-vessel quay crane assignment and  scheduling problem: Formulation and heuristic solution approach,† Expert Systems with Applications, vol. 41, pp6959–6965, May. 2014. [4] A. Simrin, N. Alkawaleet and A. Diabat. â€Å"A Lagrangian Relaxation Based  Heuristic for the Static Berth Allocation Problem using the Cutting Plane Method,† Science and Technology Publications, vol 1, pp565-569, 2013 [5] A. Simrin and A. Diabat. â€Å"The dynamic berth alloca tion problem: A linearised formulation.† RAIRO-Oper. Res., vol. 49, pp473-494, Jul. 2015. [6] E. Theodorou and A. Diabat. â€Å"A joint quay crane assignment and scheduling  problem: formulation, solution algorithm and computational results,†Ã‚  Optim Lett, vol. 9, pp799-817, Aug. 2014. [7] E. Theodorou and A. Diabat. â€Å"An integrated quay crane assignment and scheduling problem, â€Å" Computers Industrial Engineering, vol. 73, 115–123, Mar. 2014. This proposal on Quay Cranes Weight Management Problems was written and submitted by user Camilo F. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Online University Programs Boost your career Now Essay Example

Online University Programs Boost your career Now Essay Example Online University Programs Boost your career Now Essay Online University Programs Boost your career Now Essay Do you want to build your career? Do you believe you still have an opportunity of earning that college degree that you have always dreamed about? Have you contemplated of registering with an online university program on the internet? Are you very committed so much that you think you do not have time to study even though you want to have a collage degree? This article will address all these queries and more. Given the flexibilities and the possibilities permitted by the Internet, a person can take home a degree in any program he or she has interest in and boost his or her career with the help of online university programs. Therefore, do not think that you cannot go back to collage again, such thoughts and beliefs belong to the past; with internet based training the sky is the limit. Since all a person has to do is to look for the best online institution of his or her choice and enroll for the course. On the other hand if your work schedule is very tight, there are various online courses designed to match the tight schedule. These university programs are ideal for active people that find it difficult to attend normal university campuses to take part in class activities. Depending on one’s office schedules, a person can always tie his lesson arrangements to his office work with no difficulty. This is quite possible in that, online university programs allow a person to learn at his own place, pace and time. If you are taking into consideration quitting your current job, you do not have to think of that as an option anymore because with online university courses, you can easily learn and earn simultaneously. Studying with the help of the web may sound great and perfectly suitable for any busy person, still the flexibility and simplicity of this alternative can cause laziness and ultimate failure. So, a person should better be prepared to do is required to initiate and finish the university program. If you can’t do without leaving your home the internet is a great option. One good thing about the internet is that it can serve various purposes. Today there are many parents who have the ambition of continuing with their education in order to boost their career but find it tough to realize those dreams because they cannot leave their home for fear of exposing their children to danger. If you find yourself in such situation, then enroll in online university programs.

Platinum Facts on the Periodic Table of the Elements

Platinum Facts on the Periodic Table of the Elements Platinum is a transition metal that is highly valued for jewelry and alloys. Here are interesting facts about this element. Platinum Basic Facts Atomic Number: 78 Symbol: Pt Atomic Weight: 195.08 Discovery Its difficult to assign credit for the discovery. Ulloa 1735 (in South America), Wood in 1741, Julius Scaliger in 1735 (Italy) all can make claims. Platinum was used in relatively pure form by the pre-Columbian Indians. Electron Configuration: [Xe] 4f14 5d9 6s1 Word Origin: from the Spanish word platina, meaning little silver Isotopes Six stable isotopes of platinum occur in nature (190, 192, 194, 195, 196, 198). Information on three additional radioisotopes is available (191, 193, 197). Properties Platinum has a melting point of 1772 Â °C, the boiling point of 3827 /- 100 Â °C, the specific gravity of 21.45 (20 Â °C), with a valence of 1, 2, 3, or 4. Platinum is a ductile and malleable silvery-white metal. It does not oxidize in air at any temperature, although it is corroded by cyanides, halogens, sulfur, and caustic alkalis. Platinum does not dissolve in hydrochloric or nitric acid but will dissolve when the two acids are mixed to form aqua regia. Uses Platinum is used in jewelry, wire, to make crucibles and vessels for laboratory work, electrical contacts, thermocouples, for coating items that must be exposed to high temperatures for long periods of time or must resist corrosion, and in dentistry. Platinum-cobalt alloys have interesting magnetic properties. Platinum absorbs large amounts of hydrogen at room temperature, yielding it at red heat. The metal is often used as a catalyst. The platinum wire will glow red-hot in the vapor of methanol, where it acts as a catalyst, converting it to formaldehyde. Hydrogen and oxygen will explode in the presence of platinum. Sources Platinum occurs in native form, usually with small amounts of other metals belonging to the same group (osmium, iridium, ruthenium, palladium, and rhodium). Another source of the metal is sperrylite (PtAs2). Element Classification Transition Metal Platinum Physical Data Density (g/cc): 21.45 Melting Point (K): 2045 Boiling Point (K): 4100 Appearance: very heavy, soft, silvery-white metal Atomic Radius (pm): 139 Atomic Volume (cc/mol): 9.10 Covalent Radius (pm): 130 Ionic Radius: 65 (4e) 80 (2e) Specific Heat (20Â °C J/g mol): 0.133 Fusion Heat (kJ/mol): 21.76 Evaporation Heat (kJ/mol): ~470 Debye Temperature (K): 230.00 Pauling Negativity Number: 2.28 First Ionizing Energy (kJ/mol): 868.1 Oxidation States: 4, 2, 0 Lattice Structure: Face-Centered Cubic Lattice Constant (Ã…): 3.920 References Los Alamos National Laboratory (2001)Crescent Chemical Company (2001)Langes Handbook of Chemistry (1952)CRC Handbook of Chemistry Physics (18th Ed.)

Tzedakah Term Paper Example | Topics and Well Written Essays - 750 words

Tzedakah - Term Paper Example The Hebrew word â€Å"zedakah† or â€Å"tsedakah† has been translated into English meaning either â€Å"righteousness† or â€Å"charity.† In earlier times it was referred to also as â€Å"almsgiving.† It can be defined as â€Å"an act of duty incumbent upon men of means to provide for those in want.† (Jacobs et al.: 2011, no page number). One of the main principles of Jewish faith is obedience to God’s laws, and within the Torah there is provision for widows and orphans through a system of giving from the rich. Heilman reports that when he conducted a survey on charity among Orthodox Jews, one man responded â€Å"I give tzedakah for lots of reasons but foremost because it is a mitzvah that the Torah commanded me to do and by doing so I am fulfilling my obligation to be a good Jew.† (Heilman: 1991, p. 134). This shows that giving tzedakah is seen as an important way of expressing one’s identity as a Jew, and of showing one ’s righteousness before God and before other people. It is not just a voluntary sign of goodwill, but a formal ritual that is a compulsory and fundamental part of being Jewish. There is a saying â€Å"charity begins at home† (Goldman: 2000, p. 250) and this encompasses the duty that parents have towards their children and children have towards their parents. ... Each person is expected to give according to his or her means, and this might be a small or large amount. In ancient times there were strict rules on reserving a portion of one’s wealth for giving to the poor and to strangers in the community. This is called â€Å"tithing†, and its purpose is to help people remember that all good things come from God, and that they have a duty to share their good fortune with others who are in need. In modern times it is all too easy to forget this, and get caught up with the materialism of our consumer society, but practising the act of tzedakah is a good way of keeping our feet on the ground. If everyone took this commandment seriously, then there would be far less poverty in the world. The origins or of the term tzedakah come from Deuteronomy 15:4 â€Å"There shall be no needy among you.† From the earliest times, when the Jewish people lived at times in a precarious land, with deserts, bandits and all kinds of famines and disa sters, feeding the needy was seen as a priority. Husbands died of illness or were killed in wars, leaving weaker members of the family in need of support. Many of the ancient stories speak of strangers in need, and the great Jewish teachers are famed for stopping what they are doing to help the needy. Hospitality is a basic duty in the Middle East, and it offers an opportunity to be charitable and generous even to strangers. When Jewish people were spread out across Europe and the Middle East in the diaspora, there were often persecutions and it was only by sticking together and sharing their wealth with each other that many Jewish communities survived. Today there is often a connection between the giving of tzedakah and the life of

Global Promotion Event of a Toothpaste Essay Example | Topics and Well Written Essays - 1000 words

Global Promotion Event of a Toothpaste - Essay Example nature of this product therefore calls for certain convincing power that must be attained during promotion in order to ensure that the consumers are feeling safe and satisfied with the product. There are specific issues that surround dental health that must be tackled as well to enhance consumer trust, such as tooth decay (plague), bleeding gums and tooth sensitivity. The promotion of the product would require relevant specific guests and since it is set on a global stage, the presence of health and business expertise from different countries is indispensible. There are other tools provided by modern technology that must be adopted to guarantee success in the promotion. The information about Mediplus is intended to reach all the corners of the world, its presence and effectiveness must be felt around the globe before effecting sales. At the beginning of the event, the product should be introduced. Promoting a toothpatse entails promoting its active ingredients (Saxena 2006). Mediplus is a toothpaste brand that is rapidly gaining positive reputation for its effectiveness and healthy attributes. It has not been in the market and is currently in the market that only covers a single nation. The current market has tested it and has approved of its worth. It is a product manufactured under high health standards to guarantee its consumers of healthy teeth and gums. A part from its medical attributes, it is also manufactured to give its consumers a very elegant smile. It contains micro granules that whiten the teeth. Everyone needs a lovely smile. And this is what Mediplus provides without a doubt. For this reason, a Mediplus consumer is easily acceptable and socially presentable in a large scope of life. However, regardless of all the successes that Mediplus has gained in the local scenario, the company intends to pass this beautiful experience to the rest of the world: continent to continent. The presence of Mediplus to be felt in North and South America, Europe,

A Study On Digital Technologies

A Study On Digital Technologies The advent of technology has transformed and changed the mode of our lives in all its aspects. People can learn in distant universities without having to travel there. They can access to various sources of information through the World Wide Web. Unlike the traditional schools where students learning was only restricted to the school context, most schools today provide students with various contexts of learning through the use of digital technologies that facilitate their communication with their friends, teachers and people from other countries. Digital technologies are increasingly used by schools to support learning and enable students to communicate with parents and provide access to school resources from home. Therefore, I believe that digital technologies consolidated the communication channels between the home and the school. This matter is of paramount importance as it increases parental engagement in childrens learning. Consequently, parents can take informed decision regarding the future of their children and can participate with teachers in developing the level lf their children. Parental engagement in the learning process enhances children achievement at school. The ever-increasing needs of individuals and society in the 21st century are constantly placing much pressure on the educational institutions. The traditional teaching methods are no longer capable of satisfying the requirements of our modern era. Therefore, we find that most schools in many nations around the world focus on the digital participations of students as an entitlement for them in the emerging digital media era. This entitlement includes knowledge, skills and understanding that are required to be involved socially, culturally, politically, and economically in everyday life. This paper is meant to elaborate and identify what has been said about the use of the internet or other forms of webs-based learning in schools and indicate how these approaches would be applied in the context in which Im teaching. Participation in Digital Technology:- The terms digital technology and new media are used to refer to a wide range of technologies which store and transmit information in digital form. This includes computers, the internet and e-mail, mobile phones and other mobile devices and cameras, video games and web 2.0 technologies the label commonly applied participatory and interactive media (Hague, Cassie Williamson, Ben, 2009. P.3) . The digitization and computerization of many aspects of our lives places a heavy burden on established educational institutions. Alexey Semenov (2005) believes that life in the new knowledge society demands more independent and responsible behavior and much less routine execution of orders. In order to make responsible decisions in new and unexpected situations, people need to continue to learn throughout life. Therefore, information and communication technology are the most efficient tools for personal growth, creativity and joy, consumption and wealth. Students can learn the use of the internet in finding papers that are relevant to their curriculum. Through summarizing papers on the net and discussing their findings with their peers and teachers, students can feel that they are creative. Moreover, Their communication channels with their teachers, peers and other people are consolidated through the net. ICT prepares students to actively participate in a rapid changing world in whic h business nature and other activities are increasingly transformed due to the employment of the advanced and multiple technologies by using ICT tools to find, explore, analyze and present information in a responsible, creative and distinguished way. Thus, they learn how to employ information and communication technology ICT to get much literature and experiences from myriad individuals, communities and cultures. When their capabilities in using information and communication technologies are increased, initiative and independent learning are consolidated as students become more capable of taking responsible and informed decisions on when and where to use information technology to have the best result and to study the uses of ICT at home and work now and in the future. According to Semenov Alexey, 2005 believes that Adams Douglas 1999 believes that using the computer enables us to combine things together to see how they work by emulating and imitating complex and interrelated processes, even life can be imitated. This is a modern era for discoveries and ICT is its gate . Among the main objectives of the national curriculum of ICT in England for the key stages 1-4 are the following: Information Communication Technology (ICT) provides opportunities to consolidate: Thinking skills through helping pupils to determine relevant information sources, develop ideas and work collaboratively to solve problems. Project and initiative skills through encouraging students to design and implement solutions for real problems. Business related learning through providing students with opportunities to have a wide range of ICT applications. Learning for sustainable development through developing pupils understanding of Information and Communication Technology in practical life, community and environment. Digital Literacy and Schools School Subjects:- Currently schools are striving hard to integrate the development of students subject knowledge with the ability to use technology safely and effectively ((Hague, Cassie Williamson, Ben, 2009. P. 7). Therefore, they focus on digital literacy and digital participation as a key to achieve this integration. Hague, Cassie and Williamson, Ben reported that there is a model which offers a conceptual framework for embedding digital literacy as an aim in the curriculum and for developing strategies to develop it through classroom activities. This model delineates types of processes students need to go through in order to demonstrate digital literacy. Moreover, it is based on the notion that learners investigate questions and problems set by teachers, and that over time they should develop sufficient confidence and competence in the skills, knowledge and understanding of digital literacy to be able to define their own questions for enquiry. The author suggests that digital literacy is an amalgamation of: Knowledge of digital tools: hardware/ software awareness and competence. Critical Skills: evaluation and contextualization. Social awareness: Understanding your identity, collaborating, and communicating to audiences in context. Guidelines for successful implementation:- The internet is not intended as a technology that should be imposed on the educational system. Educators should have at least a fair knowledge of the use and benefits of technology in delivering their message. Internet technology for schools is intended to provide a source of comprehensible, accessible information for educators about using the power of the internet within the K-12 academic environment (Mambretti, Catherine, 1999) . In order to create web-based learning at schools and achieve the maximum benefit of the internet as a promising medium for learning, schools should conduct long-range planning not only of their technology infrastructure but of their curricula and educational technologies and strategies (ibid). Since most communities and organizations believe the importance of technology for education, several corporations have established non-profit organizations to assist schools in their technology projects or have announced plans to make major donations to school technology projects. The ICT shouldnt be a closed or self -contained subject to be taught and learned independently from other subjects. However, according to Semenov Alexey (2005) it should be treated as interdisciplinary, integrative, and cross curricular. Using ICT in teaching and learning will help both teachers and students become more conscious of their capabilities and responsibilities. However, it is of paramount importance to support learning by an immediate application of technology that is meaningful and relevant to students. Children should be taught at an early age the skill touch typing which is basically for communicating between human beings and computers. Microworld-like environments allow children from the age of 3 upwards to learn and use ICT for usual applications (graphics and text-editing) and for modeling the real world and multimedia implementation of virtual realities. Semenov Alexey ( 2005) believes that number of students per computer is a common indicator of ICT development at schools. There is also another quantitative factor which is more relevant: the number of hours a week that computers are available for use. Advantages and disadvantages of using the web for learning:- Web-based learning has many benefits for students. Students can have an easy access to a huge library of training and information whether they are working from home or any other place. It is also easy to track students. As students can complete their training while they are connected to the network, it is easy to track them. Unlike with CD-ROMs that require students to print reports or save scores to disk, WBT enables the data to be automatically tracked on the server-computer . Additionally, in web-based learning, the content can be easily updated. However, there are also some disadvantages and barriers that make it difficult to implement ICT at some schools. The most significant disadvantage is that the content of the internet which includes both safe and unsafe materials. Thus, unsafe materials such as porno movies may represent a threat to the students. There are also some barriers to the implementation of ICT at some schools such as : The cost of ICT hardware, software and maintenance. The often unconscious resistance of many educators to the intrusion of still obscure technological newcomers that threaten to alter drastically long-established and time-honored practices and customs; and The lack of teachers who are trained to exploit ICT proficiently . How ICT could be applied to the context in which Im teaching:- ICT could be applied in my context of teaching through establishing a network for the school and creating a computer lab. Each student shall be assigned a computer. Teachers shall be trained adequately on the use of ICT tools to deliver their message efficiently. Students also shall be trained on the use of the web resources through the guidance of their teachers. They will be encourage to be creative and critical in their thinking by processing all kinds of information and creating a new version of their own. Through answering assignments and receiving feedback on their e-mail, students can feel a sense of independent learning. Thus, they can take a responsible decision and depend upon themselves in searching for information and generating relevant theories. Conclusion:- To conclude, I believe that the advent of technology make it inevitable to apply ICT at all schools to create universal students who care for sustainable learning and global development. In other words, ICT should be properly implemented as it qualifies students for the increasing and fast changing requirements of the outside world. Schools shouldnt be isolated from the outside world. However, it should be a mirror for the outside world. All the conflicts and changes in the outside world should be analyzed at the school to connect students with their home and community. ICT represent an excellent communication channel between the school, home and the community as a whole. Moreover, it encourages students to be creative and independent learners. The use of ICT limits the role of the teacher to an outside observer and a guide for students. They will learn what they want to learn by themselves. Although ICT is still facing some obstacles represented by the expensive tools and equipments, its a necessity for all schools to adapt with the changing requirements and changes of our age. References:- Hague, Cassie Williamson, Ben, Digital Participation, Digital Literacy, and School Subjects ( A review of the Policies, literature and evidence, August 2009 www.futurelab.org.uk/projects/digital-participation. Semenov Alexey, Information and Communication Technologies in Schools, a hand book for teachers, Unisco 2005. ICT, National Curriculum For England, Key Stages 1-4, Crown House Publishing 1999. www.qca.org.uk/nc/ http://www.e-learningguru.com/articles/art1_9.htm Mambretti, Catherine, Internet Technology for Schools, McFarland Company, North Carolina, 1999.

Buwan ng Wika Movie

Upon watching the film, although I have already a clear view that I will become a teacher in the future, it somehow encourage me to pursue and take this course very seriously not for my benefit but for others. It gives me an inspiration to study hard and be more knowledgeable for when the time comes; I can give a lot of knowledge to my students. For saying says that, â€Å"You ca not give what you do not have.†If I will be a teacher; I will be a good model teacher to the students. I will listen to them in the sense of knowing who really they are. As long as they will give me a permission to talk to them with regards to their problem- I will. I will give them all the knowledge that they need to know for their future. I will be their best friend on the other hand; if they are willing they will also be my best friends.I will not apply the rule of a teacher and students instead a teacher to a teacher and students to a students, in general I will be like them and they will be like me. I will play with them but I will stop them their bad character and alter it into a nice character. I will develop the skills and the talent of my students in any kind of field. I will make them proud of themselves. I will make a rule of respect to the classroom. May things I envisioned but first, I must envision to graduate in this profession.