Essays on Ion

In 2015, the Powerwall was launched by Tesla. The powerwall is a rechargeable lithium ion battery that can be mounted on the wall. Tesla manufactures the pack and module while the cells of the powerwall come from Panasonic. The powerwall can save electricity that was generated from solar panels. It gets energy from the utility grid while there are low rates (Muoio, 2016). The energy will then be stored for future use. Aside from this, the powerwall serves as backup source of power in case there would be power shortage. Many changes were already made by Tesla to improve ...

Aims and Objectives of the Experiment

This experiment aims at studying the characteristics of titrations with the strength of different acids used in these titrations. This is done by drawing the titration curves of the different titrations that are carried out in this experiment and interpreting those curves. The units of measurement for this experiment are the standard units that are used in titrations. These are molarity (moles/liter) of substances while the quantities are measured in mL (milliliter).

Theory and Principles

Conductometry is a type of electroanalytical method in analytical chemistry. While other electroanalytical methods use equilibria or electrodes, conductometry is different and employs the conductance of materials ...

Introduction

The increasing use of electronic devices like mobiles and laptop has necessitated the constant supply of power. A power bank is increasingly becoming a ‘must have’ for people on the move. Kazam Mobile, the startup mobile company has come up with its Kazam Power Bank (KPB) which can power the batteries in use in mobiles and laptops. This report starts with the corporate objectives of Kazam. This is followed by a market overview of the power bank market in the UK. An internal and external audit of the market would be presented thereafter. The assumptions for the power bank ...

Abstract

Application of the nanofiltration (NF) and ultrafiltration (UF) processes is applied in the handling of water that is produced raw. The application has been investigated in the current day through various studies (Wang 14). The experiment of the processes of both nanofiltration and ultrafiltration is conducted in the laboratory unit which is operated in a pattern of cross flow (Ashaghi, Ebrahimi, & Czermak, 46). The study that was conducted in Oilfield of North Sea using the process of membranes of ultrafiltration (UF) and microfiltration (MF) indicated that the content of hydrocarbon decreased from 50 mg/l to 2 mg/l which recorded ...

Tesla is an auto company incorporated in July 2003. It was formed by Elon Musk and Marc Tarpenning. The company's aim is to utilize its powertrain and proprietary battery technologies to manufacture electric cars that would reduce the dependence on fuel. It produced and sold its first car in 2007. The period between 2008 and 2012 was a challenging period for the company with losses totaling to $943.5 million. In 2013, the company turned around and saw its global revenues increase to $2.0 billion. The stock market price rose from $34 in January 2013 to $250 by March 2014. ...

Introduction:

Nanobiotechnology serves as an imperative technique in the development of clean, nontoxic, and eco-friendly procedures for the synthesis and congregation of metal NPs having the intrinsic ability to reduce metals by specific metabolic pathways. Silver nanoparticles are particularly interesting nanoscale systems due to the ease with which they can be synthesised and modified chemically. Synthesis of silver nanoparticles has been widely researched due to their interesting size and shape-dependent properties [26]. These novel properties can be tailored by controlling their size, shape, composition, structure and crystallinity. Due to their size features and advantages over available anti-microbial properties, chemical imaging ...

1. Biot’s respiration named after Camille Biot is an abnormal ataxic breathing pattern, where rapid series of shallow respiration are followed by a period of apnea. In order to known how AMP kinase, knock down leads to Biot respiration in mice; it is necessary to known how AMP kinase affects respiratory rate. AMP kinase is a metabolic sensor and is activated in response to stretching of the lung alveolar cells and other stressors. During respiration, the lung goes through cycles of expansion and contraction (Budinger et al., 2008). When the alveolar cells stretch during expansion, the 5′ AMP-activated ...

After reviewing the financial astatement of Bank of America and CitiBank, we can find several informations regarding the performance of the bank. This analysis could reflect several strengths and the weakness of the bank. If we closely look at the operating ratio, then it is increasing gradually from 2011. This shows that the bank is able to reduce its cost. The bank’s operation is being more efficient due to which the bank is able to save more dollars as operating income for each dollar of revenue earned. While it is in the increasing trend, except for 2014, it ...

Executive Summary

Eldredge, Inc. is a major provider of by-product management services with the specific goal of performing these services in a responsible and environmentally conscious manner. With Eldredge’s multi-disciplined professional staff, field technicians and logistics specialists, Eldredge offers a complete spectrum of environmental services. Eldredge Inc. is headquartered in West Chester, PA and it provides services in the industrial, refinery, commercial, government, and utility markets. Eldredge, Inc. operates four main business units including: 1) Waste Transportation 2) Industrial Field Services 3) By-Product & Waste sourcing 4) Oil Reclamation & Water Treatment Eldredge’s facility is permitted to handle an array of ...

Solar energy harnessing through the use of solar panels installed in small homes presents better alternative to the hydroelectric provided through the national grid. While the use of solar panels may provide several advantages over the use of hydroelectricity, its usage presents several pitfalls to the user. It is imperative to investigate and outline the possible costs and advantages associated with the use of solar panels as a source of harnessing solar energy before installation is started. In most cases, the decisions concerning the installation of solar panels as the primary source of electricity are normally based on the ...

Introduction

Reduction reactions are very important in chemistry as they are effective processes for synthesizing new compounds from existing ones. In organic chemistry, a compound is said to be reduced if it acquires new hydrogen. There are diverse reagents for carrying our reduction reactions. Two of these are sodium borohydride (NaBH4) and lithium aluminum hydride (LiAlH4) - the latter is a more powerful reducing agent compared to the former. In this experiment, NaBH4 was used to reduce p-Nitrobenzaldehyde to form p-Nitrobenzyl alcohol. NaBH4was used over LiAlH4 in this experiment, because LiAlH4 would also reduce the nitro group of the aldehyde.

Experimental:

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Question 1: Uses the correct term for chronically recurring seizures.

Answer: Epilepsy Question 2: Determines if the patient in the scenario has epilepsy. Answer: J.G. does not have epilepsy. She has only had three previous cases of seizures prior to which she had not experienced any seizures. The current cases were triggered by the cesarean section thus too early to refer to the condition as epilepsy (Ko, 2016).

Question 3: Identifies possible conditions, besides brain injury, that contributes to the lowered seizure threshold for the patient in the scenario.

Answer: Apart from brain injury, lowered seizure threshold can occur as a result of infectious illnesses such as AIDS, meningitis as well as developmental disorders such as neurofibromatosis and autism (Ko, 2016).

Question 4: Describes the pathophysiology of a seizure.

The brain and the nervous systems functions within a ...

1.Diaphoresis is a medical condition of the body that an individual often sweats because of a drug side effect or symptom of a disease. Motor dysfunction has associations with the nerve and muscle center responsible for movement; this term defines the improper functioning of the muscle. Cyanosis is a condition related to the low supply of oxygen in the blood where the skin color of an individual as well as mucous membranes appears to have purple or blue coloration. The peripheral nerve connects the central nervous system and the brain to the entire body neurons; any damage or pressure ...

Summary

This seminar covers a broader spectrum of utility breath analysis by shortlisting and discussing interventions that can be used to assess and determine the existence of various diseases. The speaker’s point is mainly anchored on the manifestation of Nitric Oxide in the breadth, and how it invokes different medical implications in the breath. In a nutshell, this speech conclusively discusses how breath examination and analysis leads to the determination or realization of diseases such as Asthma, Pulmonary Hypertension, Heart Disease, Lung Cancer, and other diseases. The concept of breath analysis serves in the interest of medical diagnosis to ...

Explain Hardness of Water

Explain Hardness of Water The water that occurs in nature always contains salts, which exist in water as positive and negative ions. The salinity of fresh water is 1000 mg/L (1L of water contains 1000 mg of various salts or ions). The typical cations present in natural water are sodium, potassium, calcium and magnesium; the most common anions are chloride, sulfate, bicarbonate, nitrates, etc. Hardness of water refers to presence of calcium and magnesium ions. When water is heated, the reaction (Tebbutt, 1999):

takes place. Calcium carbonate, unlikely other salts, is insoluble and forms precipitate. The precipitate is ...

Muscle contraction is a very important activity that enables an organism perform various bodily movements and flexible actions, in response to nerve stimuli. Muscle fibers are multinucleated long cylindrical cells that have an outer membrane called sarcolemma, and are mainly composed of contractile elements called myofibrils (Dougherty, 2016). Myofibrils are made up of repeating units called sarcomeres. Sarcomeres in turn are composed of (thin) actin and (thick) myosin protein filaments called myofilaments (Dougherty, 2016). The muscle fiber structure and organization is shown in Fig 1.

Contraction Mechanism – Sliding Filament Theory

According to the sliding filament theory, during contraction myosin filaments remain constant in length, ...

Acids

There are three scientifically correct definitions that define an acid substance. Arrhenius defines an acid as a substance that made up of hydrogen that when dissolved in water breaks apart increasing the concentration of hydrogen ions (H+) in the water. Bronsted-Lowry defines an acid as a proton (H+ ion) donor. Lewis describes acids as substances that accept electron pairs. Acids have a sour taste and are highly reactive with metals (Brent, 2009). Nitric acid is used as fertilizers, and hydrochloric acid is used to bricks.

Bases

A basic substance can also be described using definitions from the three authors. Arrhenius ...

In the recent times, there have been strategies put in place to develop the rechargeable lithium-ion batteries. Innovation work in Sony corporation have improved the lithium-ion battery and since the early 1990’s. Other companies such as HP, Samsung, Apple and Dell have followed in the commercialization of the rechargeable lithium-ion battery. In the new innovation work the density of energy is twice the level of a typical nickel-cadmium. This creates the level of energy density to be high and the characteristics of load are reasonable high (Hoods, 2013). Similarly, the behavior of discharge imitates the nickel-cadmium. In fact ...

Claim

It is extremely legal for manufacturers in the United States to intentionally practice planned obsolescence in the design of their product.

Explanation for the Claim

Planned obsolescence is a business practice of deliberately designing products limiting its lifespan or making it unfashionable after a given period. The main purpose of this strategy is to make consumers feel the need to buy new products that the manufacturer will have provided. Most of the time, the products are purposely intended to fizzle out after the warranty has expired. This manufacturing strategy is widespread in America with digital device companies being the most notorious for its ...

Introduction

Tesla Motors Company is an American company that designs, manufactures, and sells electric cars as well as components of electric vehicle powertrains. Tesla Motors is also a public company that trades on the NASDAQ stock exchange using the symbol TSLA. The stock exchange of the company has been recently rising tremendously. In the year 2014 the stock of the motor company rose up to nearly 70% and in the last 12 months, the figure incredibly rose up to 618%. Tesla Motor Company was founded in California's Silicon Valley and was incorporated in July 2003 by two individuals, namely Eberhard ...

Uranium (U) element was discovered by a German chemist, Heinrich Klaproth, in 1789. Uranium is a radioactive element with an atomic weight of 238.02891 and an atomic number of 92. The uranium element initially discovered by Heinrich was an oxide, uranium oxide. A French chemist, Eugène-Melchoir Péligot, was the first person to produce pure uranium by reacting it with potassium in a heated platinum crucible. The element’s radioactive properties were established in 1896 by a French physicist known as Antoine Henri Becquerel. Currently, uranium can be extracted from various ores such as carnotite (K2(UO2)2VO4· ...

LIBs Summary and Prospects

Research in lithium ion batteries (LIBs) has focused on both active and non-active components. Flexible packaging of LIBs has been achieved by using aluminum pouch cells, polymer-coated aluminum pouch, and polymeric pouch cells. Polydimethylsiloxane material has also proved to be an excellent material suitable for packaging. Research in flexible materials has incorporated the element of cost. Laminate structures have been found to be less costly than the current technology in use. Separators for LIBs need to be not only thin, but also highly porous Cellulose nano-fiber paper-derived (CNP) and ceramic-based separators have shown impressive performance. Manufacturing of LIBs requires ...

The objective of this experiment was to get acquainted and study galvanic cells, Nernst equation, and electrochemical reactions and determine the experimental value for the Ecell vs. log Q for Cu/Zn cell. Galvanic cells are the systems which can produce electric current due to reactions occurring in them. In our common understanding these cells are the batteries. In these cells, the processes of electron transfer and corresponding chemical reactions occur due to the difference in tendency of different substances to gain electrons. The galvanic cell typically consists of two half-cells and a junction between them which is often a ...

Tesla’s business model is very difficult to put into practice in the current general environment, because there are many factors that influence the development of technology and automotive industry upon which Tesla’s strategic decisions depend. The company introduced very innovative and costly cars and now it is important that in the key markets there will be a very strong upper middle class. If the global economy and the economies of the developed countries continue to grow, Tesla will have much many business opportunities. One more economic factor that is going to have a very positive impact on ...

Introduction

Mobile TV technology enables viewing of TV channels on hand-held devices so that people may watch their favorite programs, wherever they are; outdoors or inside speeding vehicles. On one hand the fixed TVs inside homes have evolved into home theaters with large LED screens and quality sound systems. The idea of having visual entertainment inside one’s pocket is appealing. A home television requires a consensus among the viewers on what program should be watched at any particular point in time, a mobile TV enabled viewing of favorite channels without competition. There are two ways of delivering this invention, ...

The objective of this experiment was to prepare Beer-Lambert calibration curves for different forms of nitrogen and to determine the concentration of nitrate, nitrite, and ammonia ions in different water samples from the Biscayne Bay.

Introduction

Nitrogen is the most abundant element in the Earth atmosphere. In is not surprising that it is one of the most crucial elements not only to human life but all life on our planet. The chemistry of nitrogen is rather diverse because it can exist in different oxidation levels – from +3 to -5. Due to its large impact on the biosphere, the circulation of ...

Magnesium is an essential nutrient

Magnesium is a mineral which is of great abundance in the human body. Along with enzymes, it is important for protein synthesis, muscle regulation and a host of other important cellular factors such as oxidative phosporylation, energy production which involves production and utilization of ATP and glycolysis. Additionally, Magnesium is required to assist in different cellular processes such as DNA replication and transcription and RNA translation(Barbagallo, 2012). Magnesium is found usually in the bones and or in the soft tissues of humans. Next to Potassium, it is the most abundant ion in the body. The plasma actually contains ...

Re: extended definition of solar power and nuclear power

Purpose This memo is an extended definition of solar power and nuclear power as sources of energy. Introduction Solar power is energy from the sun. This energy is harnessed by collecting sunlight and converting it to electricity (Winter et al. 4). The cells found in the solar panels make this conversion possible. The conversion of sunlight to electricity can either be done indirectly by the use of a concentrated solar panel or directly by use of the photovoltaic cell. Nuclear power, on the other hand, utilizes nuclear reactions to produce nuclear energy (Murray 495). This energy is found in ...

I would want to be an accounting systems auditor. Accounting systems auditor examines accounting records and management systems t see that they are working as expected, and efficiently The average pay for this position, in other countries is a bit lower than the US at averagely USD 24,000 to 40,000 per year for entry level positions(Prospects). In the United States, the labor office gives the average salary for entry level positions at 65, 000USD(Prospects) while Hudson indicates the salary to be around 57, 000 USD for entry level(Hudson). The average local rate, therefore, can ...

Introduction

Enhancing performance requires effective identification of key issues that a business faces. That is because it helps in selection of suitable strategies as well as allocation of resources. With that, the following is a summary of the Tesla case study identifying the issues facing the company from the Market line case study and proposing suitable solutions as well as their implementation.

Analysis

Issues discussions and options Issues Business operations are normally subject to various factors that influence not only their performance but also the financial performance. In that view, Tesla motors operates in a competitive environment with dynamic factors that ...

Section

Introduction The purpose of this lab was to find the amount and percentage of nickel present in an unknown compound using the "mole method." The unknown nickel compound was dissolved in water and treated with dimethylglyoxime and ammonia solutions to obtain the precipitate of known chemical composition (bis(dimethylglyoximo)nickel(II)), which then was weighed and using this data the amount and percentage of nickel in the initial compound were found. The insoluble Ni(DMG)2 complex is formed in two steps. First, the dimethylglyoxime reacts with hydroxide ion formed through the ammonia hydrolysis to produce dimethylglyoximate anion: C4H8N2O2( ...

Chlorine is used in water treatment to reduce or eradicate microorganisms, for instance, bacteria or viruses found in water (EPA, 2011). The use of chlorine for the treatment of drinking water has significantly reduced the risks or exposures to water-borne infections or diseases. Besides, the supplies of safe or treated drinking water are paramount for the health as well as the general well-being of the public. Untreated water sources, for example, streams, boreholes, dams, wells, or rain water can harbor certain harmful or dangerous microorganisms, which when consumed may cause serious infections such as cholera, dysentery, or typhoid, as ...

The Role of Diet in Human Health

The human immune system is highly developed and complex to ensure that it fights with a wide range of microorganisms, viruses, bacteria, particles and other foreign objects that may affect the body in any way. The system is made up of various components within the body, and all are in some relation with each other to ensure that there is an effective immunity against any foreign body capable of causing some pathological conditions in the body. The major components of the human immune system include a group of immune cells such as the T-lymphocytes, B-lymphocytes, natural killer cells, memory cells, and ...