fiji economic small mineral pendulum feeder for sale

metallurgist & mineral processing engineer

For its extensive practical experience, 911 Metallurgisthas a clear understanding of what successful mineral processing engineering is and how to go about achieving it. Your goal is the production of a material that is marketable and returns you and your investors sustainable revenues.

Although improvements to the metallurgical processes have been made over the years the fact is that the unit operations, the machines, those too often called black boxes involved have not evolved or changed much since inception. Ore is reduced in size, chemicals are added and minerals separated and upgraded to produce a marketable product. Much of this process is mechanical and generally mistaken for some dark alchemy.We are the Anti-Alchemists.

Our vast experience has been gained through operation and start-up of both small and large scale mining/metallurgical operations in a range of commodities in thebase metals (Cu, Pb, Zn) and theprecious metals (Au, Ag,)

A solid metallurgist understands, the most important aspect of an operating process is its stability. Simple to say, but generally the most ignored in mineral processing. Linked unit operations require each to be stable, and each contains a different set of variables that have to be contended with. Thanks to some degree of stability: operating changes can be made and evaluated; increases in throughput can be made; and equipment performance improved. The more complicated the processes become, the more difficult it is to achieve and maintain stability. In mineral processing, unlike most processing operations, we have limited control of the main input, the feed ore. In most cases this inherently is variable and usually outside of the processors control.

Because you are too close to your own story, you might not see the forest for the trees and have chaos mistaken for stability. We, you, and your group have been battling plant problems for weeks, you start to accept chaos as a daily state of affair and consider it your new stability.

Each mineral processing plant is different: with varied ore types, mining equipment, and management (operating) philosophy. The evaluation and prioritisation of variables that affect the plant performance is the primary function. Implementing changes within the constraints imposed can be difficult, as resources may be limited.

Invariably the ability to solve problems can be confusing due the large numbers of variables that may impact the processes. In most cases problems are not metallurgical in nature but rather operational and mechanical. Problem solving is a process and in many operations this ability is absent. All too often many changes are made together without a solution resulting, on more confusion. Most plants learn to live or survive their problems, not to solve them.

Our engineering team has a global experience in the mining industry across all facets of the mine life-cycle. Our focus is to add value to your project and company by understanding your needs, employing innovative ideas and applying sound engineering while maintaining an economically driven approach. We have a combination of senior level professionals, experienced project managers, and technical staff to execute projects efficiently. We work in a partnership with our clients to achieve their company goals and operational milestones in a timely and cost effective manner.

factors influencing the price of magnetite mineral processing equipment - xinhai

It has been more than 20 years since Xinhai was built in 1997. During the process of development, Xinhai has been providing the most professional, perfect and efficient equipment and solutions to customers. Recent years, with the recession of iron ore industry in domestic, magnetite mineral processing equipment price has changed. It will be introduced below.

Magnetite mineral processing equipmentfor sale, which price varies according to the market demand. Recent years, because of the recession of iron ore industry in domestic and poor management, some small size iron plants bankrupted. However, some large size concentration plants began to adopt energy-saving equipment, in order to reduce the sale price. Therefore, the demand for common magnetite mineral processing equipment decreased, as well as the magnetite for sale price. But the price of energy-saving magnetite mineral processing equipment went up obviously, not influencing the sales volume. For the surviving large size concentration plants as the fittest, the cost input on energy-saving equipment is far less than the acquired economic benefits.

Besides considering the change of industrial market, companies can customize Magnetite mineral processing equipment from Xinhai mining machinery according to their practical needs. Magnetite mineral processing equipment varies from the customized specifications and functions. If the customers are not clear about the demands, the EPC service will be provided by Xinhai, from beneficiation experiment, mining design, equipment selection, installation and adjustment, employee training, achieving production targets, and the mining comprehensive operation management. Until now, Xinhai has finished more than 500 EPC projects for middle and small size at home and abroad, achieving the highest level of EPC quantity and beneficiation technology. Xinhai is worth your believing.

mining machines in galena mining plant

Galena is a common mineral, which is also called lead sulphide. It is an important ore mineral of refined lead, which is the most widely distributed. Galena is a kind of gray of lead sulfide. Before the Shang dynasty there were refined leads from the galena in China. They have metallic luster. Galena Often contains silver, therefore it also be used as the resources of silver. Galena becomes cerussite alum and lead after being weathered.

Galena is the main mineral to extract lead. The uses of lead are ancient and extensive, such as lead type printing, bag cable, steel lead tin alloy plating, defense, science and technology, pencil lead. Ancient Greek sailor used lead paint oil to removal the barnacle creatures in the ship bottom, etc. Lead has good corrosion resistance properties. With the lead paint, the ship is like wearing a layer of armor, magically ruled out algae, protected the ship bottom. Lead is essential raw materials for making weapons. Lead is also radiation material as shielding radioactive.

As for the large economic values of galena, in some area that contains rich galena minerals, galena mining plant is the main method to get refined lead from the galena minerals. In the galena mining plant, many mining equipment is needed, such as jaw crusher for the first stage crushing in the plant, cone crusher and impact crusher for the second or third stages crushing, grinding machines for other stages materials as well as some ancillary equipment. All these machines are produced by shanghai SBM, a professional manufacturer and supplier of mining machines, which is famous in the world. They mainly produce crusher and grinder machines as well as some other ancillary equipment for beneficiation. Theirbusiness has expanded to more than 170 countries in the world.

In galena mining plant, jaw crusher, cone crusher, impact crusher and grinding machines are necessary. According to the categories, crusher can be divided into medical stoner and mining crusher. Crusher refers to such crushing machine that discharging granularity that more than 3 mm is more than 50% in content of total discharge capacity.

Mine crusher is mainly used for all kinds of stone crushing. According to the different working principles and different particle size, crusher is also divided into many types. there are several types of commonly used crushing machinery such as jaw crusher, counterattack crusher, vertical impact crusher, hydraulic cone crusher, hammer crusher, roll crusher, compound crusher, cone crusher, double stage crusher, gyratory crusher, mobile crusher etc.

Cone crusher is suitable for the crushing of raw material in metallurgy, construction, road construction, chemical and silicate industry. It can crush all kinds of ores and rocks that are medium and medium hardness above. Cone crusher has many advantages, such as high efficiency, low energy consumption and product granularity and it is suitable for medium and fine broken of all kinds of ores and rocks.

Grinding machines are widely used in metallurgy, building materials, chemical, mining and other fields. According to the fineness of grinding material and discharged material fineness, mill can be divided into vertical pendulum pulverizer, hanging roller mill, high pressure micro powder mill, centrifugal mill, overpressure trapezium mill, three-ring medium speed mill.

Mill machine mainly consists of blower, the analysis of host, cyclone separator for finished product, plumbing, electrical machines, etc. The host consists of frame, the wind volute, the shovel, grinding roller and grinding ring, cover and the motor. Auxiliary equipment is jaw crusher, electromagnetic vibrating feeding machine; electric control cabinet etc. the user can choose machines flexibly according to the site condition.

Base on decades of years R&D experience and thousands of clients production experience, SBM updated our tranditional vibrating feeder and developped the TSW series feeder, which can greatly improve the whole production line capacity.

zillow: real estate, apartments, mortgages & home values

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flotation process flow in the extraction of silver - xinhai

As to the extraction of silver, the flotation method is generally used for the extraction of independent Ag deposit, while the combined process of single flotation method and floatation-gravity separation method and floatation-cyanidation method are used for the extraction of the common and associated silver. But the flotation process is still the most important silver extraction process.

The extraction of silver usually needs crushing, grinding and extraction three stages. The main equipment used in the extraction of silver includes jaw crusher, ball mill, spiral classifier, flotation machine, thickener, dewatering machine and other equipment. Here is the whole flotation process flow used in the extraction of silver:

Under the action of vibrating feeder, the mined silver ore is sent to the jaw crusher evenly for primary coarse crushing processing, and then sent to the cone crusher for fine crushing by belt conveyor. Then, the silver material is sent to the circular vibrating screen by belt conveyor for reasonable screening, those qualified particle sizes of silver particles directly enter the next process, those unqualified particle sizes of silver particles will be returned to the crusher machine for re-crushing.

The qualified silver particles under the action of the pendulum feeder and conveyor are continuously sent into the ball mill for grinding processing, then sent into the spiral classifier for classification for removing the impurities. Only the material that meets the requirements is sent to the next working procedure, the material that cannot meet the requirements is sent to the ball mill for re-grinding.Stage grinding can be used in the grinding stage of silver extraction, which can improve the concentrate index. Under the condition of rough grinding, the mixed roughing is carried out. The coarse concentrate is sent to cleaning after the re-grinding process. The amount of coarse concentrate sent to re-grinding is small, and the monomer dissociation of the mineral can be realized, so the concentrate with high grade and high recovery can be obtained and energy consumption can be saved at the same time.

The qualified silver ore pulp from the ball mill machine is sent to the agitation tank for full mixing, and then sent to the flotation machine. Adding the corresponding flotation reagent to the flotation machine, the floated concentrate is sent to the thickener for full concentration and precipitation, and then sent to the dewatering machine for drying and dewatering, so as to get the qualified silver concentrate.

In order to improve the recovery rate of independent silver extraction, the process used in the extraction of silver can be improved in three ways. First, according to the disseminated feature, the silver shall be fully disintegrated as much as possible. Second, choose the neutral or weak alkaline flotation pulp alkalinity and choose sodium carbonate as the flotation pulp regulator to improve the floatability of silver. Third, the combination of xanthate and black powder is used to enhance the collecting ability of silver.

For the extraction of silver, strengthens the flotation process can improve the grade of silver concentrate. Strictly adopting the reagent system in the roughing stage, control the reagent dosage, and recover the concentrate as soon as possible, which can reduce the loss of multiple cycles and inaction. Making full use of the secondary enrichment of foam, and wash the concentrate foam to reduce the impurities by adding water, so as to enhance the flotation effect.

Stage flotation and multiple recovery can also be used in the extraction of silver. By means of multiple-stage separation, the useful minerals of different grades can be recovered as much as possible, thus improving the concentration index.

Here is the common flotation process in the extraction of silver. It is suggested that each owner shall carry on the mineral processing test to determine the specific process flow, so as to obtain the best mineral processing indexes and economic benefit.

what minerals are in volvic water?

There is little evidence that bottled waters are substantially healthier to drink than ordinary tap water. And flavoured waters that contain artificial sweeteners and chemical flavourings as does Volvic Touch of Fruit are certainly not a viable alternative healthwise. First, there are the 'water miles'.

One may also ask, which water contains more minerals? The clean water ultimately gets delivered to households through a system of underground pipes. Tap water contains added minerals, including calcium, magnesium, and potassium. Hard tap water has higher mineral contents, which some consider more healthful.

The Volvic natural mineral water spring is in the Auvergne Volcanoes Regional Park, at the heart of an ecosystem of forests and moors. Volcanic eruptions, the first of which occurred 100,000 years ago, gradually created a natural filter, which has now become the basin for Volvic natural mineral water.

But the bitter truth is that a small bottle of flavoured water can contain as much sugar as a plate of Krispy Kreme doughnuts. The most popular brand, Volvic's Touch of Fruit in lemon and lime, has 27.5g of sugar in its standard 500ml bottle equivalent to almost seven teaspoons.

As the water filters through these different volcanic layers, it absorbs natural minerals, where arsenic naturally occurs. The level in Volvic is 4 ppb, well below the FDA arsenic maximum level. Volvic is safe and in full compliance with all applicable federal, state, and industry bottled water standards.

Volvic is a brand of mineral water. Its source is Clairvic Spring, Auvergne Regional Park, just to the north of the Puy de Dme in France. In October 1993, the Volvic Company was bought by Groupe Danone. Since 1997, Volvic has been using PETE, a recyclable material, to make their bottles.

Although flavored waters may taste better than plain water, unfortunately, there are additions to these waters that you might not want in your drinks, especially if you are a kidney disease patient. Plain water has zero calories and no artificial sweeteners. Some flavored waters may even contain sugar.

Evian has a 'salted' taste due to it being very hard water and mineral rich. There are much harder waters on the market but Evian has a more recognisable taste. Since Evian is hard water, it can quickly quench your thirst. To oversimplify urban legends that only alkaline water is healthy is poppycock.

Top 10 bottled waters Hildon Natural Mineral Water. Evian Natural Spring Water. (Evian) Fiji Natural Artesian Water. (Gayot.com) Gerolsteiner Mineral Water. (Gayot.com) Ferrarelle Naturally Sparkling Mineral Water. (Gayot.com) Perrier Mineral Water. (Perrier) Mountain Valley Spring Water. (Gayot.com) Volvic Natural Spring Water. (Gayot.com)

Smartwater. Smartwater is made by the people behind Glacau. Aquafina. Aquafina is purified water that has gone through a 7-step HydRO-7 filtration process. Dasani. This brand is brought to you by the soft drink giant Coca-Cola. Evian Water. Nestl Pure Life. Fiji Natural Artesian Water. Voss. Mountain Valley Spring Water.

Fiji. Evian. Nestl Pure Life. Alkaline Water 88. Even though there was no official report on the quality of Alkaline Water 88 (NASDAQ:WTER), the brand holds Clear Label, which guarantees safety of a product. Glaceau Smart Water. This smart water is nothing special, so it seems.

The 'Volvic 14 day Challenge' coincides with the relaunch of the pack design and promises to deliver mind and body wellness simply by drinking 1.5l of Volvic every day to experience deep Volcanic hydration! (Ipsos Study, Dec 2008, n= 89 Challenge completers, drinking 1.5L of Volvic every day for 14 days).

Types/ Brands of Water Tested for pH and -ORP Brand or Type Source or Features pH (Above 7 is Alkaline, below 7 is Acidic) Vittnel Vosges, France Spring water 7.98 Volvic Natural volcanic mineral water 7.07 Voss Norway Artesian water 6.67 Waiwera, New Zealand Artesian water 7.87

Volvic: pH level 7.5 Volvic water is drawn from the heart of the Parc Naturel des Volcans d'Auvergne in central France, a protected environment. Volvic is bottled exclusively at its source, the Clairvic Spring.

Flavoured water that contains 8 spoons of sugar. {1} Flavoured water products sold as a healthy alternative to fizzy drinks can contain up to eight teaspoons of sugar. A study has found that the average 500ml bottle contains more than 25g of sugar, almost as much as a can of Coke.

Fiji Water has all kinds of minerals that give it its smooth, soft taste such as calcium, magnesium and silica. Are There Any Electrolytes In Fiji Water? Fiji Water does contain electrolytes that are 100% natural, which gives the water its smooth taste and feel.

self-feeder management - form-a-feed

Self-feeders have long been used in the beef industry as an effective means to feed cattle in a variety of cattle feeding operation types, from a backyard 4-H herd, to a large-scale feedlot. Self-feeders work effectively in cow-calf operations to creep feed beef calves as well as for confinement feedlot cattle. Self-feeders require less labor than other feeding methods, make efficient use of feed by controlling waste and spillage, and can reduce equipment and fuel usage.

Self-feeders can be made from wood, metal, or plastic. There are four main types of self-feeders: portable, stationary, homemade, and flex systems. The portable type of feeder is often referred to as a creep feeder. They tend to be used for smaller calves on pasture and have a gate system to prevent larger animals from accessing the feed.

Another report* from NDSU compared nishing diets fed by bunk and self-feeders. The results showed only a 10 cent per head advantage to the bunk fed cattle vs. self-fed cattle. The economic breakdown did not place any value on labor. When factoring in labor the self-feeder is the best option for small to mid-sized operations.

Rodent controlEliminating or controlling rodents will also reduce the spread of diseases. Rats and mice can carry infected fecal matter and other materials from pen to pen on their coats. Close any possible entrances to feed storage areas and to any closed barns or facilities. Commercial rat and mice poisons are effective in reducing rodent populations. Take precautions when placing the bait so they are not accessible to cattle or pets.

Daily Check the feeder to be sure feed is available and flowing. This is especially important in adverse weather conditions. In winter, ice and snow can build up and block flow. Look to see if there is anything that may be obstructing the path to the feeder (mud, fallen gates or other objects they need to walk around). If mud is often present, build up the area to drain well. When a Holstein cant easily get up to the feed and water, they just lay down and wait. This means poor performance and an increase in the chances of digestive issues.

Weekly Clean out fines. Toss any feed that is moldy. You can put the non-moldy fines in a bunk or empty tub away from the feeder to give the cattle another chance to eat them. When a feeder is cleaned there is a good chance mold will be disturbed. If a person is sensitive to mold, it is a good idea to wear a protective mask. One way to reduce the need to clean stuffers more often is to screen the corn. This is especially helpful for younger calves that will back down on intakes with a lot of fines. Be sure to inspect the water sources as well. Drain and clean often.

Spring and Fall Adjust the openings accordingly. Over time cattle can and will work the adjustable slides up. It is important to limit the opening to in the summer and 1 in the winter. There are 2 main reasons to keep the openings low. One is to make the cattle work to get the feed out. This helps them create saliva to buffer the rumen and in turn reduce the chances of slug feeding. The second is to keep the pellets inside the feeder right up until the cattle eat them. This helps reduce the pellet fines in the feeder tray. Other ways to reduce pellet fines are to put them in the mixer last, mix for 20 seconds and start emptying the mixer, be sure your pellet bin is emptied and cleaned out at least two times per year. Spot check the scales on your mixing equipment too.

Annually Clean out all remaining feed and lift the feeder up to power wash the mud and manure off. Check the site for signs of rodents. Patch any holes and seal any cracks with silicone. This is a good time to apply another coat of paint. Check hardware such as hinges, adjusting bolts, and latches and replace if needed.

Would you like a set of free Form-A-Feed Tend-R-Leen adjusting blocks for your self-feeder? Just fill out the form below to receive your free blocks (while supplies last)! Be sure to contact your Form-A-Feed representative for help with feeding management strategies for your self-fed cattle!

Form-A-Feed's Species Specialists understand that each species is unique. Our Species Specialists work hard to understand the unique needs of each species, and builds a nutrition program to meet those needs. Our experienced and talented staff utilize our high-quality products and services to help each operation reach their goals.

chalcopyrite processing

chalcopyrite bioleaching29 apr 2018 . the reactions involved in the bioleaching of chalcopyrite and other . both in bioleaching and downstream processing of base metal sulphides,.chalcopyrite bioleaching29 apr 2018 . the reactions involved in the bioleaching of chalcopyrite and other . both in bioleaching and downstream processing of base metal sulphides,.sulfuric acid-oxygen leaching for in-situ extraction of copper .11 dec 2018 . at ambient temperatures and pressures, leaching of chalcopyrite is slow and current industrial processing is almost exclusively to.flotation process development and assessment17 mar 2017 . in addition to chalcopyrite measurable levels of bornite, chalcocite and covellite were also observed in the process stream samples. however.chalcopyrite archives . mineral processing metallurgythe problem with separating copper from zinc by flotation. the treatment of heavy sulphide ores of copper containing zinc and pyrite is often extremely difficult.chalcopyrite leaching by thermophilic bacteria20 may 2017 . subsequent column leaching studies using low-grade chalcopyrite ores . and cell numbers were established by the 3-tube mpn process.collector dosage - ph and flotability pyrite galena chalcopyrite fe .30 apr 2018 . collector dosage ph and flotability pyrite galena chalcopyrite fe pb cu . 911metallurgist mineral processing process development.chalcopyrite archives . mineral processing metallurgythe problem with separating copper from zinc by flotation. the treatment of heavy sulphide ores of copper containing zinc and pyrite is often extremely difficult.sulfuric acid-oxygen leaching for in-situ extraction of copper .11 dec 2018 . at ambient temperatures and pressures, leaching of chalcopyrite is slow and current industrial processing is almost exclusively to.effect of nonionic surfactants on chalcopyrite leaching5 mar 2018 . bacteria active in the dump oxidize fe+ to fe+ to provide oxidant for the leaching process. it is in a chalcopyrite dump that the hydrophobicity-.

chalcopyrite (cu) sphalerite (zn) separation by flotationthe copper zinc process flowsheet. after extensive laboratory test work the above typical flowsheet was.chalcopyrite chlorination process for copper extraction15 apr 2018 . a process is proposed which consists of low-temperature chlorination and selective oxidation of chalcopyrite concentrates to produce copper.copper sulfide flotation13 apr 2016 . summary of porphyry copper sulfide processing; the copper process . by flotation of copper as chalcopyrite with gold and silver values.chalcopyrite leaching by iodine29 apr 2018 . chalcopyrite is the most abundant mineral of copper sulfide minerals and . the arbitter process (kuhn et al., 1974) is carried out at 60 to 90 c.chalcopyrite flotation without collector - surface chemistry7 oct 2018 . metallurgist mineral processing engineer logo . sodium sulfide was also used to clean the surface of the chalcopyrite samples. results.chalcopyrite (cu) sphalerite (zn) separation by flotationthe copper zinc process flowsheet. after extensive laboratory test work the above typical flowsheet was.an investigation of leaching chalcopyrite ore - qspace - queen's .chalcopyrite. based on the process and economic assumptions, it was demonstrated that the economics of the hypothetical chalcopyrite leach leaching.converting chalcopyrite to copper sulfides14 aug 2018 . this is of special interest in hydrometallurgical processing since it provides an . also, the conversion of chalcopyrite is an important process in.converting chalcopyrite to copper sulfides14 aug 2018 . this is of special interest in hydrometallurgical processing since it provides an . also, the conversion of chalcopyrite is an important process in.flotation rates of non-sulphide minerals in chalcopyrite flotation .26 apr 2019 . flotation process chalcopyrite ores. non-sulphide gangue is always present in two forms in a sulphide ore flotation pulp, namely as free.

how flotation is affected by chalcopyrite pyrrhotite interaction7 oct 2018 . metallurgist mineral processing engineer logo . pyrrhotite and chalcopyrite samples were separately crushed to minus 10 mesh, and the.what ph do i separate chalcopyrite galena sphalerite by flotation .what ph do i separate chalcopyrite galena sphalerite by flotation . 911metallurgist mineral processing process development laboratory. we have a.chalcopyrite leaching9 jun 2017 . leaching chalcopyrite is the holy grail for hydrometallurgists (leachers), difficult to leach . buy laboratory small plant process equipment.leaching chalcopyrite concentrate residue to recover sulfur24 sep 2018 . the leaching residue is produced from a chalcopyrite concentrate leaching based on the leaching circuit of cuprex process. the leaching.chalcopyrite leaching9 jun 2017 . leaching chalcopyrite is the holy grail for hydrometallurgists (leachers), difficult to leach . buy laboratory small plant process equipment.collector dosage - ph and flotability pyrite galena chalcopyrite fe .30 apr 2018 . collector dosage ph and flotability pyrite galena chalcopyrite fe pb cu . 911metallurgist mineral processing process development.the effect of regrinding chemistry and particle . - uq espaceinternational journal of mineral processing 125: 129-136. chen, x., peng, y. and bradshaw, d., 2014. the separation of chalcopyrite and chalcocite from.chalcopyrite chlorination process for copper extraction15 apr 2018 . a process is proposed which consists of low-temperature chlorination and selective oxidation of chalcopyrite concentrates to produce copper.chalcopyrite flotation without collector - surface chemistry7 oct 2018 . metallurgist mineral processing engineer logo . sodium sulfide was also used to clean the surface of the chalcopyrite samples. results.chalcopyrite leaching by iodine29 apr 2018 . chalcopyrite is the most abundant mineral of copper sulfide minerals and . the arbitter process (kuhn et al., 1974) is carried out at 60 to 90 c.

tend-r-leen - form-a-feed

Tend-R-Leen is PROVEN, SIMPLE, and PROFITABLE. Over 55 years of success and over 10 million steers have been fed on the Tend-R-Leen program. Producers see an average daily gain increase and improved feed efficiency!

A 32% protein all-natural concentrate to be mixed with grain to provide a complete growing ration for beef cattle and dairy steers from 130 to 450 pounds. Contains milk products to help the calf transition to a grower diet.

A pelleted, medicated 36% protein supplement which contains all the necessary nutrients for finishing beef cattle and dairy steers on a high-energy program from 450 pounds or 6 months of age. Contains highly digestible fiber sources and requires no mineral supplementation. Amino acid balanced to provide the essential amino acids not provided by corn to maximize gain. Daily feeding rate of 1.5 lbs./head/day.

A pelleted, medicated 29% protein supplement which contains all the necessary nutrients for finishing beef cattle and dairy steers on a high-energy program from 450 pounds or 6 months of age. Contains highly digestible fiber sources and requires no mineral supplementation. Amino acid balanced to provide the essential amino acids not provided by corn to maximize gain. Daily feeding rate of 2 lbs./head/day.

A pelleted, medicated 29% protein supplement which contains all the necessary nutrients for finishing beef cattle and dairy steers on a high-energy program from 350 pounds or 5 months of age to finish. Contains highly digestible fiber sources and requires no mineral supplementation. Amino acid balanced to provide the essential amino acids not provided by corn to maximize gain. Daily feeding rate of 2 lbs./head/day.This product is medicated with Rumensin only, so no VFD is required.

For dairy-beef or beef cattle, Tend-R-Leen 528 Natural Choice is a pelleted, non-medicated 28% protein concentrate for growing and finishing cattle to be mixed with grain for growing diets as a supplement to forage. 528 Natural Choice contains nutraceuticals to aid in growth and overcoming health challenges when medications are not used.

I have been raising steers for more than 25 years and have always been on the Tend-R-Leen program. It works well for me with the whole shell corn and protein pellet in my set-up. The results are really good. Im extremely happy with the results.

The first Tend-R-Leen product for beef cattle, Tend-R-Leen 525 NBC Base R120 is a convenient, flexible pelleted formulation to mix with corn and whole grains for creep feeding nursing beef calves or for backgrounding/growing rations for beef cattle up to 1000+ lbs. To be fed with unlimited free choice forage source (pasture, hay, crop residues).

For dairy-beef or beef cattle, Tend-R-Leen 528 Natural Choice is a pelleted, non-medicated 28% protein concentrate for growing and finishing cattle to be mixed with grain for growing diets as a supplement to forage. 528 Natural Choice contains nutraceuticals to aid in growth and overcoming health challenges when medications are not used.

We started using the Tend-R-Leen 525 NBC product last year on our calves on pasture to make up a creep feed using our corn out of the bin so there wasnt so much out-of-pocket expense. We mixed it ourselves and used our seed tender to deliver it to creep feeders on pasture. We feel the Rumensin in the pellet kept the coccidiosis and bloat problems under control and the consumption stayed steady. The calves seemed to wean easier than the past because they knew what corn was and went right to the corn silage. The calves didnt show any more flesh than when we used a conventional creep.

If you have questions like these, our Tend-R-Leen Economic Projections can provide you with guidelines based on following the Tend-R-Leen program. The economic projection details the following performance measurements:

Form-A-Feed's Species Specialists understand that each species is unique. Our Species Specialists work hard to understand the unique needs of each species, and builds a nutrition program to meet those needs. Our experienced and talented staff utilize our high-quality products and services to help each operation reach their goals.

pendulum - an overview | sciencedirect topics

The pendulum appears to have swung away from the idea of controlling technological advancement in poorer countries and regions in order to protect jobs, limit capital leakage, and strengthen the capacity for endogenous technology development, to a strategy of accelerating the NorthSouth transfer of appropriate forms of technology and the capacity of poorer countries to absorb and make use of it. As such, Schumachers advocacy of intermediate technology appears to have been relevant to a particular moment in the history of modern development and a specific segment of the global economy. Nonetheless, his philosophy has taken on a much wider resonance in recent years as more and more people have started to question the destination that a technology-driven path is taking the world in social, economic and, most particularly, environmental terms. Technology has delivered amazing advancements and improvements, but has also wrought incredible destructive power. Humankinds ability to overconsume natural resources, pollute the biosphere, and threaten future development has been facilitated by the cavalier and often inappropriate application of modern technology.

These problems have stimulated a reaction which is gaining in scale and momentum across the globe, and which has been strongly influenced by Schumachers philosophical position, inter alia, on the scale and capital intensity of production, our complacent attitude and behavior toward resources and the natural environment, the importance of building according to context and capability, and the need for people-centered and self-reliant forms of development. Described as the father of the Green movement, Schumachers influence can be identified in the current preoccupation with sustainable development, calls for a radical ecological economics, and movements against materialism, overtechnification, developmentalism, and globalism which have much in common with the Buddhist economics that Schumacher espoused.

A perfect pendulum is a deterministic system described by only two variables: its position and its velocity. See inset (a) of Figure 10.1. It can be shown that two deterministic rate equations describe the pendulum's motion, defining how the position (angle ) and the velocity (v) change through time:

The motion takes place under the action of a gravitational field (gravitational constant g) acting upon a mass m (although the value of m doesn't affect the motion). The effects of a frictional force proportional to the pendulums speed have been added ( is the proportionality factor). Consistent with our experience, over time the system approaches a state of rest =0,v=0. The dynamical evolution in time is displayed in part b of Figure 10.1. Both the position (continuous line) and the velocity (dashed line) exhibit damped oscillations as the system approaches equilibrium. This state will be reached starting from any possible initial condition. It is a global attractorand, in this case, a point attractorfor the system. Part c of Figure 10.1 provides the state space (,v) view. It shows the system trajectory converging to its single-point attractor *=0,v*=0.

Simple springs and pendulums can provide vibration isolation in both vertical and horizontal directions. The transmissibility of an isolator is the proportion of a vibration as a function of frequency that is transmitted from the environment to the structure of the isolator. For a single degree of freedom vibration isolation system the transmissibility, T, is given by [30]

since the static restoring force kl = mg. Thus for a low resonant frequency in a spring system it is necessary to have a large static extension or compression (or use a specialized non-linear spring).

The genetic-environment pendulum has swayed in many directions when it comes to creativity. A number of early twin studies failed to find genetic influence on this trait (e.g., Richmond, 1966), although outcomes vary with how constructs are defined and measured. In a teenage twin sample, Reznikoff et al. (1973) found genetic effects on word association, but not on associational fluency. Genetic effects on adaptive flexibility and esthetic judgment, but not on ideational or expressional fluency, were found in both Italian and American samples (Barron, 1972). A summary reporting average correlations across extant studies for MZ (.61) and DZ (.50) pairs suggested modest genetic effects (Nichols, 1978). The possibility that controlling for general intelligence would have reduced the size of the difference between these correlations was raised (Canter, 1973); accordingly, Chvez-Eakle (2007) failed to find genetic influence on creativity.

The Minnesota Study of Twins Reared Apart requested that participants draw pictures of both a person and a house. These reared-apart twins were adults, but the findings are worth reporting as the protocol is being repeated with younger twins as part of the California State University, Fullerton Study of Chinese Twins Reared Apart and Together. Drawings were examined by judges that included four artists and four nonartists who assessed the degree of creativity of the drawings. Genetic effects were found for the person drawings (.38 to .47), but not for the house drawings. In addition, creative personality scores, derived from the Adjective Checklist, showed genetic effects (.50) and modest, but significant correlations with scores on the two drawings (rs=.17 to .26) as reported by Velzquez et al. (2015).

A slightly different test for measuring the crushing strengths of rocks was developed by Narayanan and Whiten [20]. In this test, the specimen is shattered against a suspended pendulum by an impact pendulum (Fig. 3.5). On impact, part of the energy is absorbed in the shatter of the sample, and part transmitted to the anvil block, which is displaced by the force of impact and commences oscillating. The remaining energy is dissipated as sound, heat etc.

The swing of the pendulum is recorded by a computer, which receives signals from a laser beam impinging on fins fixed to the rebound pendulum. From simple geometry it can be seen that the displacement, D, of the input pendulum from the rest position is given by:

where L is the length of cord of suspension and the angle subtended with the vertical from the position of rest Similarly, the horizontal displacement of the rebound pendulum after impact is given by L sin , where is the angle subtended from the vertical from the position of rest of the rebound pendulum. The angle is determined from the period of oscillation, POS, of the pendulum from the swing using the expression:

To determine the value of , the value of the constants A and B have to be determined. This is carried out by raising the pendulum to at least three heights and the POS for the first swing of the pendulum determined. The height, H, to which the pendulum is raised, is given by the relation:

The results obtained with the larger anvil block have been found to agree well with the energy consumed in Autogenous and Semi-Autogenous Grinding (SAG) mills, while results from the smaller anvil agree more with ball and rod mill comminution systems. The estimation of energy for crushing by this method could be lengthy and tedious.

Galileo noticed that the period of a pendulum is nearly independent of the amplitude of its swing in 1602, which gave him the idea of using pendulums as clocks. Christian Huygens built the first successful clock based on the pendulum in 1657. The period is dependent upon the acceleration caused by the attraction of the Earth, g, so the pendulum can be used in reverse to measure gravity if an independent clock can be used to time the pendulum period. Gravity measurements made with pendulums were first made popular by Pierre Bouguer in 1749. The pendulum was, in fact, the primary method for measuring absolute gravity for about 200 years. A very accurate absolute pendulum gravity meter was developed by Captain Henry Kater (1818). Kater realized that a pendulum could be swung around two different axes in order to measure absolute gravity using a simple distance and time measurement. This method removed the dependence of the frequency on the suspended mass and replaced it by a single time and distance measurement that could be calibrated against the absolute standards of the day.

Figure 5 shows a schematic diagram of the Kater pendulum. It has two sets of knife edges that can be used to swing the pendulum from two different points about its center of gravity. The center of gravity can be adjusted using adjustable weights in order to make the swing period for the two suspension points equal.

where is the angle of swing and m is the mass of the pendulum. The distance between the knife edge and the center of mass is given by L, and the moment of inertia of the pendulum about the axis of rotation defined by the knife edges is given by I. In general, the distance between the center of mass and the knife edge and the moment of inertia will be different for the two sets of knife edges. The period is nearly independent of the swing amplitude as long as the angles are small. The period of the pendulum around each knife edge is given by

The moment of inertia around each knife edge is related to the same moment of inertia around the center of mass by Ii=Icm+mLi2. All moments of inertia can be eliminated by subtracting the two moments about the knife edges to obtain

Notice that gravity is given only by distance and time measurements. It does not depend upon the mass of the pendulum! The expression is further simplified if one tunes the periods around each knife edge to be the same by moving the adjustable weights at the end of the pendulum. In this case, the difference of the two distance measurements is eliminated and only the sum of the two distance measurements becomes important. The expression for gravity then becomes

This result is nice because one does not have to locate the center of mass because the only distance that matters is the total distance, Ltot, between the flexures. This equation shows that gravity depends solely upon two measurements one of which is a distance and the other a time. This is an ideal absolute gravity meter because one can obtain a calibrated result simply by measuring the distance between the knife edges with a calibrated standard meter stick and the period with a standard calibrated clock. The Kater pendulum is thus calibrated by its very design. This is a requirement for an absolute gravity meter.

The pendulum was a very successful absolute gravity instrument, but it finally reached its limiting accuracy of a few parts in 107 due to the difficulty in producing low-loss knife edges. The pendulum was eventually replaced with a free-fall gravity meter in which the proof mass was allowed to free fall in a vacuum. This eliminated the frictional problem inherent in the pendulum.

Knowledge obtained by analyzing an oscillating pendulum provides the basis for calibrating an L 1,2 systems model for harmonic oscillation without need of a primary data base. Knowledge items essential to the synthesis are as follows:

Mechanism for oscillation:In SS1, exponential growth is introduced by X 3. Output from SS2, X 7, is a delayed version of X 3. SS1 leads off with a head start. Although having the same exponential growth rate, SS2 overtakes SS1 via a gain, G, applied to output from SS2 to produce X 4. X 4 is a negative component in the balance equation of SS1, retarding growth and eventually driving X 1 negative, thereby reversing the roles of SS1 and SS2. First positive, then negative growth dominates, as feedback in the form of alternating exponential change flows from SS2 to SS1. Consequently, oscillation enfolds the entire system.

In SS1, exponential growth is introduced by X 3. Output from SS2, X 7, is a delayed version of X 3. SS1 leads off with a head start. Although having the same exponential growth rate, SS2 overtakes SS1 via a gain, G, applied to output from SS2 to produce X 4. X 4 is a negative component in the balance equation of SS1, retarding growth and eventually driving X 1 negative, thereby reversing the roles of SS1 and SS2. First positive, then negative growth dominates, as feedback in the form of alternating exponential change flows from SS2 to SS1. Consequently, oscillation enfolds the entire system.

System variables:SS1: X 1 = initial level of potential energy X 2 = terminal level of potential energy X 3 = exponential growth, an input rate X 4 = delayed and modified exponential growth, an output rateSS2: X 3 = exponential growth, an input rate X 5 = initial delayed level of potential energy X 6 = terminal delayed level of potential energy X 7 = delayed exponential growth, an output rate

The simple pendulum was replaced by horizontal pendulums in the latter part of the nineteenth century. A group of British professors teaching in Japan, including James A. Ewing (18851935), Thomas Gray (18501908), and John Milne (18501913), pioneered the development of seismographs. One effective way to reduce the required pendulum length is to let the pendulum oscillate about an axis AC inclined at a small angle to the vertical as shown in Fig. 1b. Line AB is a suspension wire, BC is a rigid boom with mass m attached, and C is a point of contact, or a hinge that restricts the boom to move in a plane that is slightly tilted from the horizontal. The horizontal pendulum seismograph records the horizontal component of ground motion that is perpendicular to the boom. The natural period for such a horizontal pendulum is

where l is the equivalent pendulum length when =90. Thus the natural period T may be made large by making small. The mass m is generally large (up to 1000kg or more) in order to overcome the effects of friction. Among early mechanical horizontal seismographs are the Milne seismograph (1895) and the Omorl seismograph (1898).

A different design for recording horizontal components of ground motion of local earthquakes is the so-called WoodAnderson seismograph invented by J. A. Anderson and Harry O. Wood in 1925. As shown schematically in Fig. 1c, there are no pivots and a very small mass (about 1 gram) is attached eccentrically to a taut suspension fiber (AC). The mass can rotate about the fiber against the restoring force of torsion. Magnification of about 2800 is achieved by optical means from deflection of light on a mirror attached to the mass.

Figure 14 is a sketch of a torsional pendulum as used for determination of modulus and damping. After the initial excitation, the natural frequency can be directly determined from the time difference between the maxima in the curve of torsional deformation vs. time. The damping is usually determined from the logarithmic decrement , defined as the logarithm of the ratio between two consecutive torsion maxima. If An is the amplitude of the nth torsion maximum and An+1 is the amplitude one period later, then can be calculated according to

Since it is possible to determine quite accurately over several periods, this is a simple and accurate method for determination of the loss factor. Also, since the decay proceeds most slowly when the damping is low, the method can be successfully used for materials with very small loss factors, i.e. too low for direct measurement. This is best carried out with the apparatus enclosed in a vacuum chamber.

The main advantage of the torsion pendulum is its simplicity of operation. The main disadvantage, common to all free decay methods, is that, for a given specimen and given inertia, loss factors and moduli are obtained at one frequency only. Results at different frequencies can be obtained by changing the specimen dimensions or the inertia. This is possible but rather labour-intensive and introduces an additional source of experimental error. Frequencies down to 0.1Hz can be obtained quite easily, but useful results are rarely obtainable for frequencies higher than 500Hz.