Troubleshooting Problems in Crystal Growing

Growing crystals is fairly easy and a fun project but there may come a time when your attempts to grow a crystal wont be a success. Here are some common problems people run into and ways to correct them: No Crystal Growth This is usually caused by using a solution that isnt saturated. The cure for this is to dissolve more solute into the liquid. Stirring and applying heat can help to get solute into the solution. Keep adding solute until you start to see some accumulate at the bottom of your container. Let it settle out of solution, then pour or siphon the solution off, being careful not to pick up undissolved solute. If you dont have any more solute, you can take comfort in knowing that the solution will actually become more concentrated over time as evaporation removes some of the solvents. You can speed this process up by increasing the temperature where your crystals are growing or by increasing air circulation. Remember, your solution should be loosely covered with a cloth or paper to prevent contamination, not sealed. Saturation Problems If youre sure your solution is saturated, try to eliminate these other common reasons for the lack of crystal growth: Too much vibration:Â  Keep your crystal setup in a quiet, undisturbed location.Contaminant in the solution:Â  The fix for this is to re-make your solution and only works if you can avoid contamination. (It wont work if your starting solute is the problem.) Common contaminants include oxides from paper clips or pipe cleaners (if youre using them), detergent residue in the container, dust, or something else falling into the container.Inappropriate temperature:Â  Experiment with temperature. You may need to increase the temperature around your crystals to get them to grow (this increases evaporation). For some crystals, you may need to decrease the temperature, which slows the molecules down and gives them a chance to bind together.Solution cooled too quickly or too slowly:Â  Did you heat your solution to saturate it? Should you heat it? Should you cool it? Experiment with this variable. If the temperature changed from the time you made the solution to the present time, the rate of cooling might make a difference. You can increase the rate of cooling by putting the fresh solution in a refrigerator or freezer (faster) or leave it on a warm stove or in an insulated container (slower). If the temperature didnt change, perhaps it should (heat the initial solution).Water wasnt pure:Â  If you used tap water, try re-making the solution using distilled water. If you have access to a chemistry lab, try deionized water that was purified by distillation or reverse osmosis. Remember: water is only as clean as its container! The same rules apply to other solvents.Too much light:Â  The energy from light can inhibit the formation of chemical bonds for some materials, although its an unlikely problem when growing crystals at home.No seed crystals:Â  If youre trying to grow one large single crystal, youll need to start out with a seed crystal first. For some substances, seed crystals may form spontaneously on the side of the container. For others, you may need to pour a sma ll amount onto a saucer and let it evaporate for crystals to form. Sometimes crystals grow best on a rough string suspended into the liquid. The composition of the string is important! Youre more likely to get crystal growth on cotton or wool string than on nylon or a fluoropolymer.Seed crystals dissolve when placed in the new container:Â  This happens when the solution isnt fully saturated. (See above.)

Chronic Obstructive Pulmonary disease - 661 Words

As an individual grows older, the body will also undergo changes to its system. The effects of changes on the respiratory system can cause problems to develop more easily and be more difficult to manage. Some changes that occur over time are that the nose tissue has reduced support which causes symptoms that interfere with air passage and reduced secretions causing tickling of the throat and coughing. The trachea will stiffen causing more difficulty in the coughing process making the ability to expel lodged items less effectively. The lungs will become smaller; the recoil of the lungs is decrease forcing the body to use other muscles in order to maintain the proper amount of gas exchanges. The thorax and the diaphragm lose skeletal muscle strength causing a reduction in vital capacity and residual volume left in the lungs. Elderly are also more apt to getting respiratory infections because their immune and lymphatic systems also are undergoing changes as they age. All of these change s mentioned above not only impact just the respiratory system but they also force an individual to change their normal daily functions. An individual may no longer be able to do the activities that cause even the most minimal amount of stress on their bodies, or they may become immobile. Despite the fact that as we age our bodies undergo structural changes there are also respiratory conditions that effect our older population. Chronic Obstructive Pulmonary Disease represents a group ofShow MoreRelatedChronic Obstructive Pulmonary Disease3277 Words   |  13 Pageshospital with a chief complaint of difficulty breathing; diagnosis includes congestive heart failure exacerbation (CHF) with pneumonia (PNA). He has a full code status. Past medical history includes congestive heart failure, COPD, peptic ulcer, chronic kidney disease stage 3, anemia, and hypernatremia. 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The biggest thing I have learned from music Free Essays

In â€Å"The Art of Eating Spaghetti,† Russel Baker’s discovered his passion to become a writer. Wrting was the only talent and it was the only outlet for him to find who he is. If there was one thing that I’ve noticed that has changed me, that is music. We will write a custom essay sample on The biggest thing I have learned from music or any similar topic only for you Order Now Before I got into music, I was someone completely different. But then about 10 years ago, I finally bought my first music CD; it was a soundtrack to the movie, Crow: City of Angels. That day, something just clicked in me, like a missing piece of a puzzle. After that, while my sister was at school, every chance I got I went into her already extensive music collection and began listening to more and more music. It was essentially a snowball effect from there. I just kept getting my hands on more and more music until I’ve amassed currently almost 500 albums. Much of my personality changed as well. It changed many of the ways I looked at the world because I started hearing so many more perspectives on it through the music. Instead of just a visual representation I had grown up with, I now had an audio representation of the world. So many ways of translation just coming straight to me through my ears. My views just broadened up so much and I started to accept much more into my life. I used to never like change. If I was at a restaurant, I’d get only what I absolutely knew I would like. Music made me to become much more experimental as it opened my eyes and helped me become much more acceptable of change and trying new things. I would say that’s the biggest thing I have learned from music. Is the prospect of how beautiful things can become if looked at in more than one way. Music showed this to me and taught me a way to be able to finally express it. I used to have such a hard time expressing myself, but music became my avenue for expression. Now whatever effects me, it can show in my work, and the music I write. Again, music taught me how to accept change, and also to become more passionate. Well it kind of goes hand in hand to me, as expression leads to passion, and vice versa. I tried to do that with art, but it just never fully took me the way music did. I’ve grown and changed more from music than anything else in my entire life. If you knew me ten years ago, you wouldn’t even know me anymore. It’s funny how much some of the most simple things to some people, can be so complex and life changing to others. But thankfully, I was fortunate enough to discover music, because I ca n’t imagine anymore the way I was. Now my world is so much more open to interpretation in ways I never thought possible before. Music would probably be the first drug I can say I ever discovered. When I listened to that movie soundtrack for the first time, listening to all those great bands, I just felt such a rush like nothing I ever felt before. It was insane to me. That cd was a gateway for me to bigger and better music. A lot of music is just music to me, thats all, I still enjoy it, but some bands and soundtracks are something else. My prime example is Tool. When I first heard their song called â€Å"Third Eye†, I learned that music carried no boundaries. This was music unlike any rock I’ve ever heard before. It was so intricate as it went on. So many parts to the song that sound nothing alike, but they mesh together like a beautiful tapestry. Parts are peaceful and beautiful, and parts are a tempest of intruments, and each section rung a note inside me, just taking me someplace else entirely when I closed my eyes. Its like, behind my eyelids, I could see what the singer was seeing as he sa ng his heart out. The first time this ever happened to me, I could remember vividly like I was on a sandy desert, but it wasn’t hot, it was rather cool and the sky was pinkish. And there were pools of water all over the place, like it just rained for hours, and inside the sand, there were black shiny stones everywhere scattered. After that happened to me, I been hooked on Tool ever since. No music has had a more profound effect on me before that day. Man, if anything can make a grown woman feel like a little child that is so excited before christmas, that is Tool for me. So overall, music has showed me how much more there is in the world besides what we see everyday. The eyes are just one sense, and the ears can tell just as much about the world as the eyes. The world just appears more beautiful when you can see deeper inside of it. You have to see the abstract of something to truly appreciate it for how beautiful it is. How to cite The biggest thing I have learned from music, Papers

Role of a Construction Manager on Build Quality †Free Samples

Question: Discuss about the Role of a Construction Manager on Build Quality. Answer: The purpose of this essay is to stress on the role of a construction manager on the build quality of a construction project in progress.Project management can be seen as a core capability within construction industry, so higher level project planning would be a necessity for the success of the project. The text consists of data which were collected from approximately 555 construction managers from different countries and planning capabilities of construction managers are compared with various other industrial sectors. Apart from that, critical project planning for the process of the constructions in progress are also identified in the text. Construction projects obtain a higher quality of project planning and better success rate. The impact of critical planning process is investigated in the text. It is found that construction managers who wish to improve their projects at the planning phase, they should look into accurate identification of all the activities focusing on the development of the planning of the project (Zwikael 2009). This study provides the facts regarding the behavior that leads to inaccurate processing within a small design and build contracting organization that recruits labors directly the main objective is to decrease process waste and improving the value of those are to be delivered to the customers. Action research is used for identification and bringing in changes within the organization, and the method was applied to constructions in progress in the domestic housing sector. The intervention is to raise awareness of the site personnel to the importance of finishing the works via informal discussions and techniques regarding visualmanagement techniques (Emmitt, Pasquire and Mertia 2012). The main findings of the research are, Raising awareness of the importance of finishing the constructions to allow other trades to follow on unconstrained and that leads to significant improvement in the quality of the project. This helps in saving budget and time too. This research provides a unique insight into the application of thinking tools and process improvement. The construction managers project delivery method can be said as an emerging method in transport industry to promote better understanding of the benefits and oddities implementing a promising project delivery method. This research provides the output from the conference relying on content analysis of the presentations provided in the conference (Schierholz, Gransberg and McMinimee 2012). Apart from the previously told point, the paper also includes a panel discussion. The paper states that the state of the practice in construction manager is advancing since NCHRP synthesis 402 was completed in 2009. The paper also stresses on the major challenges for the implementation is the need for proper training for DOT personnel and the consultancy firms and construction organizations. This paper states that a competent construction manager is important for the success of the project. There are many studies regarding the efficiency of the managers but there are very few regarding the context of green construction. The paper further stresses on the challenges that a manager face while constructing a green construction. This study discusses how to establish knowledge base for the construction managers to execute green projects (Hwang, Bon-Gang and Wei Jian 2013). This study shows the challenges that a manager faces while constructing a sustainable project. Integrated project delivery can be seen as an emerging delivery system for the construction projects that involves participants very early in the timeline of the project, or sometimes even before the design is made. This paper fills the gap by judging the performance of Integrated project delivery comparing with the projects where traditional design bid build systems were followed while delivering. The results show that, IPD achieves significantly better rate of improvement in construction industry. The performance level is increased in sectors like quality, communication, environmental and financial performance. IPD provides better quality of facilities with lesser cost premium (El Asmar et al. 2013). The text stresses on the factors of quality management, and those are mentioned below. Quality management in a construction site Construction Quality Management can be referred to as the performance of jobs that makes it sure that the construction is getting built by following the plans chalked out earlier within allocated time and budget under a safe workplace environment. In case of a constructionproject quality management comes in the first place in the priority list. The issues regarding qualitative factors of any building must be resolved faster with high priority to ensure the safety of the labors or other employees who are working in the site and then the clients or other customers who are going to reside there or attend office there. The construction manager must take full responsibility to ensure the safety and qualitative factors of the buildings. If the safety and security issues with the qualitative factors come are under question, then it can bring in threats from government and media that can be dangerous for the reputation of the organization that are responsible for erecting the building (Kerzner 2013). Construction managers widely known as site managers and their basic job is to supervise and to help in operating various projects within the building project. The construction managers take responsibility of completion of any building projects with safety and ensure that the project is finished within time allotted for it to finish and it is finished within the budget allowance. The projects on the constructions managers work on range from small projects to huge gigantic projects both domestic and commercial. The job of construction managers comes with many challenges. Their job is not as easy as it seems. The main duties of the construction managers are described below. This section involves the planning of the total project with proper documentation of all the jobs those are to be completed. This process ensures that there are no problematic issues present in the project regarding materials or labors. The previously allotted budget is all that a construction manager can spend for the completion of the project and I should be taken care of with efficiency. This is the part of work where a construction manager needs to do some serious work regarding cost management (Sarda and Dewalkar 2016) References Emmitt, Stephen, Christine Pasquire, and Basant Mertia. "Is good enough making do? An investigation of inappropriate processing in a small design and build company."Construction Innovation12, no. 3 (2012): 369-383. Hwang, Bon-Gang, and Wei Jian Ng. "Project management knowledge and skills for green construction: Overcoming challenges."International Journal of Project Management31, no. 2 (2013): 272-284. Kerzner, Harold.Project management: a systems approach to planning, scheduling, and controlling. John Wiley Sons, 2013. Sarda, A. and Dewalkar, S., 2016, ROLE OF PROJECT MANAGEMENT CONSULTANCY IN CONSTRUCTION. Sarda, A. and Dewalkar, S., 2016, ROLE OF PROJECT MANAGEMENT CONSULTANCY IN CONSTRUCTION. Schierholz, Jeanna, Douglas D. Gransberg, and James McMinimee.Benefits and challenges of implementing construction manager/general contractor project delivery: The view from the field. No. 12-1206. 2012. Zwikael, Ofer. "Critical planning processes in construction projects."Construction Innovation9, no. 4 (2009): 372-387.