Questões de Inglês - Preposições | Prepositions para Concurso

The Operations Function

Although somewhat ‘invisible’ to the marketplace the operations function in a typical company accounts for well over half the employment and well over half the physical assets. That, in itself, makes the operations function important. In a company’s organization chart, operations often enjoys parity with the other major business functions: marketing, sales, product engineering, finance control (accounting), and human resources (personnel, labor relations). Sometimes, the operations function is organized as a single entity which stretches out across the entire company, but more often it is embedded in the district, typically product-defined divisions into which most major companies are organized.

In many service businesses, the operations function is typically more visible. Service businesses are often organized into many branches, often with geographic responsibilities – field offices, retail outlets. In such tiers of the organization, operations are paramount.

The operations function itself is, often divided 

.................two major groupings .................tasks:

line management and support services. Line management generally refers.................those managers directly concerned................the manufacture of the product or the delivery of the service. They are the ones who are typically close enough to the product or service that they can ‘touch’ it. Line management supervises the hourly, blue-collar workforce. In a manufacturing company, line management frequently extends to the stockroom (where material, parts, and semi-finished products – termed ‘work-in-process inventory – are stored), materials handling, the tool room, maintenance, the warehouse (where finished goods are stored), and distribution, as well as the so-called ‘factory floor’. In a service operation, what is considered line management can broaden considerably. Often, order-taking roles, in addition to orderfilling roles, are supervised by service line managers.

Support services for line management’s operations can be numerous. Within a manufacturing environment, support services carry titles such as quality control, production planning and scheduling, purchasing, inventory control, production control (which determines the status of jobs in the factory and what to do about jobs that may have fallen behind schedule), industrial engineering (which is work methods oriented), manufacturing engineering (which is hardware-oriented), on-going product engineering, and field service. In a service environment, some of the same roles are played but sometimes under vastly different names.

Thus, the managers for whom operational issues are central can hold a variety of titles. In manufacturing, the titles can range from vice-president – manufacturing, works manager, plant manager, and similar titles at the top of the hierarchy, through such titles as manufacturing or production manager, general superintendent, department manager, materials manager, director of quality control, and down to general foreman or foreman. Within service businesses, ‘operations manager’ is sometimes used but frequently the title is more general – business manager, branch manager, retail manager, and so on.

SCHMENNER, Roger W. Production/Operations Management. 5th Edition. Prentice-Hall, 1993.

A Brief and Simplified Description of Papermaking

The paper we use today is created from individual wood fibers that are first suspended in water and then pressed and dried into sheets. The process of converting the wood to a suspension of wood fibers in water is known as pulp making, while the manufacture of the dried and pressed sheets of paper is formally termed papermaking. The process of making paper has undergone a steady evolution, and larger and more sophisticated equipment and better technology continue to improve it.

The Wood yard and Wood rooms

The process at Androscogging began with receiving wood in the form of chips or of logs 4 or 8 feet in length. From 6 AM to 10 PM a steady stream of trucks and railroad cars were weighted and unloaded. About 40 percent were suplied by independents who were paid by weight their logs. The mill also received wood chips from lumber mills in the area. The chips and logs were stored in mammoth piles with separate piles for wood of different species (such as pine, spruce, hemlock).

When needed, logs were floated in flumes......(1).....the wood yard.....(2).....one of the mill’s three wood rooms. There, bark was rubbed......(3)........in long, ribbed debarking drums by tumbling the logs against one another. The logs then fell into a chipper;......(4)......seconds a large log was reduced to a pile of chips approximately 1 inch by 1 inch by 1/4 inch.

The chips were stored in silos. There were separate silos for softwoods (spruce, fir, hemlock, and pine) and hardwoods (maple, oak, beech, and birch). This separate and temporary storage of chips permitted the controlled mixing of chips into the precise recipe for the grade of paper being produced.

The wood chips were then sorted through large, flat vibrating screens. Oversized chips were rechipped, and ones that were too small were collected for burning in the power house. (The mill provided approximately 20 percent of all its own steam and electricity needs from burning waste. An additional 50 percent of total electricity needs was produced by harnessing the river for hydroelectric power.)

Once drawn from the silo into the digesters, there was no stopping the flow of chips into paper. 

Pulpmaking

The pulp made at Androscoggin was of two types: Kraft pulp (produced chemically) and ground wood pulp (produced mechanically). Kraft pulp was far more important to the high quality white papers produced at Androscoggin, accounting for 80 percent of all the pulp used. Kraft pulp makes strong paper. (Kraft is German for strength. A German invented the Kraft pulp process in 1884.) A paper’s strength generally comes from the overlap and binding of long fibers of softwood; only chemically was it initially possible to separate long wood fibers for suspension in water. Hardwood fibers are generally smaller and thinner and help smooth the paper and make it less porous.

The ground wood pulping process was simpler and less expensive than the Kraft process. It took high quality spruce and fir logs and pressed them continuously against a revolving stone that broke apart the wood’s fibers. The fibers, however, were smaller than those produced by the Kraft process and, although used to make newsprint, were useful at Androscoggin in providing “fill” for the coated publication gloss papers of machines 2 and 3, as will be described later.

^(A)The chemical Kraft process worked by dissolving the lignin that bonds wood fibers together. ^(B) It did this in a tall pressure cooker, called a digester, by “cooking” the chips in a solution of caustic soda (NaOH) and sodium sulfide (Na²S), which was termed the “white liquor.” ^(C)The two digesters at Androscoggin were continuous digesters; chips and liquor went into the top, were cooked together as they slowly settled down to the bottom, and were drawn off the bottom after about three hours. ^(D) By this time, the white liquor had changed chemically to “black liquor’’; the digested chips were then separated from this black liquor. ^(E)

In what was known as the “cold blow” process, the hot, pressurized chips were gradually cooled and depressurized. A “cold liquor’’ (170°F) was introduced to the bottom of the digester and served both to cool and to transport the digested chips to a diffusion washer that washed and depressurized the chips. Because so much of the lignin bonding the fibers together had been removed, the wood fiber in the chips literally fell apart at this stage.

The black liquor from the digester entered a separate four-step recovery process. Over 95 percent of the black liquor could be reconstituted as white liquor, thereby saving on chemical costs and significantly lowering pollution. The four-step process involved (1) washing the black liquor from the cooked fiber to produce weak black liquor, (2) evaporating the weak black liquor to a thicker consistency, (3) combustion of this heavy black liquor with sodium sulfate (Na₂SO₄ ), and redissolving the smelt, yielding a “green liquor” (sodium carbonate + sodium sulfide), and (4) adding lime, which reacted with the green liquor to produce white liquor. The last step was known as causticization.

Meanwhile, the wood-fiber pulp was purged of impurities like bark and dirt by mechanical screening and by spinning the mixture in centrifugal cleaners. The pulp was then concentrated by removing water from it so that it could be stored and bleached more economically.

By this time, depending on the type of pulp being made, it had been between 3 1/2 and 5 hours since the chips had entered the pulp mill. 

All the Kraft pulp was then bleached. Bleaching took between 5 and 6 hours. It consisted of a three-step process in which (1) a mix of chlorine (Cl₂ ) and chlorine dioxide (CIO₂ ) was introduced to the pulp and the pulp was washed; (2) a patented mix of sodium hydroxide (NaOH), liquid oxygen, and hydrogen peroxide (H₂ O₂ ) was then added to the pulp and the pulp was again washed; and (3) chlorine dioxide (ClO₂ ) was introduced and the pulp washed a final time. The result was like fluffy cream of wheat. By this time the pulp was nearly ready to be made into paper.

From the bleachery, the stock of pulp was held for a short time in storage (a maximum of 16 hours) and then proceeded through a series of blending operations that permitted a string of additives (for example, filler clay, resins, brighteners, alum, dyes) to be mixed into the pulp according to the recipe for the paper grade being produced. Here, too, “broke” (paper wastes from the mill itself) was recycled into the pulp. The pulp was then once again cleaned and blended into an even consistency before moving to the papermaking machine itself.

It made a difference whether the broke was of coated or uncoated paper, and whether it was white or colored. White, uncoated paper could be recycled immediately. Colored, uncoated paper had to be rebleached. Coated papers, because of the clays in them, could not be reclaimed.

Read the text. It‘s the lyric of a song.

Need you now Lady Antebellum (2009)

Picture, perfect memories

Scattered all around the floor

Reaching for the phone 'cause

I can't fight it anymore

And I wonder if I ever cross your mind

For me it happens all the time

It's a quarter after one

I'm all alone and I need you now

Said I wouldn't call

But I lost all control and I need you now

And I don't know how I can do without

I just need you now

Another shot of whisky

Can't stop looking at the door

Wishing you'd come sweeping

In the way you did before

And I wonder if I ever cross your mind

For me, it happens all the time

It's a quarter after one

I'm a little drunk

And I need you now

Said I wouldn't call

But I lost all control and I need you now

And I don't know how I can do without

I just need you now

Oh ohh

Yes, I'd rather hurt than feel nothing at all

It's a quarter after one

I'm all alone and I need you now

And I said I wouldn't call

But I'm a little drunk and I need you now […] 

Disponível em: <https://www.letras.mus.br/lady-antebellum/1539868/>. Acesso em: 06 Nov 2018.

"Need You Now" is a song performed by American country music trio Lady Antebellum. The band co-wrote the song with Josh Kear, and produced it with Paul Worley. It serves as the lead-off single and title track to their second studio album, Need You Now (2010), and was first released in the US on August 11, 2009.[1][2] The song also served as their debut single in the UK and Europe, where it was released April 23, 2010. It won four Grammy Awards in 2011, including for Song of the Year and Record of the Year, the first country song to win both honors since "Not Ready to Make Nice" by the Dixie Chicks won both in 2006, and only the second ever to do so. Disponível em: https://en.wikipedia.org/wiki/Need_You_Now_(Lady_Antebellum_song). Acesso em: 06 Nov 2018.

Read and answer.

The Prepositional Verbs 

In English, many verbs are followed by prepositions and adverbs. In some cases these combinations are called ‘phrasal verbs’, while in other cases they are prepositional verbs. What’s the difference? Read on to find out more.

A prepositional verb is a verb that is followed by a preposition. The meaning of these two words together is usually very similar to the original meaning of the verb.

While the meaning of a phrasal verb is often different to the original meaning of the main verb, the meaning of a prepositional verb is usually the same as the main verb. Phrasal verbs also use adverbs as well as prepositions, whereas prepositional verbs do not.

Adaptado de: MILNE, Mary. 2019. Disponível em: https://www.wallstreetenglish.com/blog/prepositionalverbs/#:~:text=While%20the%20meaning%20of%20a,w hereas%20prepositional%20verbs%20do%20not.&text= Prepositional%20verbs%20cannot%20be%20separated . Acesso em 29 mar. 2021.

Global warming

The world’s oceans have warmed 50 percent faster over the last 40 years than previously thought due to climate change, Australian and US climate researchers reported Wednesday. Higher ocean temperatures expand the volume of water, contributing to a rise in sea levels that is submerging small island nations and threatening to wreak havoc in low-lying, denselypopulated delta regions around the globe.

The study, published ....................... the British journal Nature,adds ....................... a growing scientific chorus of warnings ....................... the pace and consequences rising oceans. It also serves as a corrective to a massive report issued last year ....................... the Nobel-winning UN Intergovernmental Panel on Climate Change (IPCC), according to the authors. 

Rising sea levels are driven by two things: the thermal expansion of sea water, and additional water from melting sources of ice. Both processes are caused by global warming. The ice sheet that sits atop Greenland, for example, contains enough water to raise world ocean levels by seven metres (23 feet), which would bury sea-level cities from Dhaka to Shanghai.

Trying to figure out how much each of these factors contributes to rising sea levels is critically important to understanding climate change, and forecasting future temperature rises, scientists say. But up to now, there has been a perplexing gap between the projections of computer-based climate models, and the observations of scientists gathering data from the oceans.

The new study, led by Catia Domingues of the Centre for Australian Weather and Climate Research, is the first to reconcile the models with observed data. Using new techniques to assess ocean temperatures to a depth of 700 metres (2,300 feet) from 1961 to 2003, it shows that thermal warming contributed to a 0.53 millimetre-per-year rise in sea levels rather than the 0.32 mm rise reported by the IPCC.