HOMEWORK 1 - EE 474/574
Due February 26, 2015
1) A wind generation company would like to increase its average generation
capacity by 35M W . Estimate the number of 2M W windmills that would be
required, assuming that on an average a windmill p
qualit nitrito di quattro varianti di Solanum spp. M.Sc.
Tesi Universit di Nairobi, in Kenya
Omami, EN, Opala, PA; Opile, WR; Tuwei, C.
(2013)."Risposta della belladonna africano al fosfato
1. Infestation in the stores and how to curb the losses
Insect Control Losses caused by insects:
1) Weight loss. Insects as they develop will feed on
the produce. Losses vary with the commodity, for
grain and legumes.
2) Loss in the range of 10-30% might
Acephala DC) lascia M.Sc Tesi Universit di Nairobi.
Ivens, GW, (1967). erbacce dell'Africa orientale e il loro
controllo. Ristampato 1990. University Press Oriente
Africa, Nairobi, Oxford. Jaetzold R, Schmidt H
(1983). Farm Management Handbook del Kenya.
uso alimentare in tswana trib. PhD. Tesi, Dipartimento di
Geografia, Universit della California, Davis. ISTA
(1985). norme internazionali per controllo delle
sementi. Seed Scienza e Tecnologia, 13: 356-513
Fritz, D., Habben, J.1973.Influence della feconda
seminario NRI / dell'IPGRI / CPRO a Limbe, Camerun
sulla verdura indigena africana. Pp.22-24, 86-95 (R.
Schippers e L.Budd, EDS). APS, Regno Unito.
Chweya JA., (1997). miglioramento genetico dei vegetali
indigene in Kenya. p. 95. In: verdure tradizionali
a) Dusts are usually mixed with the grain in diluted form
at 10-15 parts per million active ingredients (ppm A.I.) at
the time of loading/bagging. Suitable chemicals:
Organophosphorus insecticides, pirimephos-methyl
(Actellic) or pyrethroids.
b) Sprays ma
Abe LO, Imbamba SK, (1997) .Levels di vitamine A e C
in alcune piante vegetali keniani. Oriente Afr. Agric.
Forestale J. 42 (3): 316-321.
Abukusta-Onyango, MO; Agong, SG; Mwai, GN; NonoWomdim, R .; Ojiewo, CO (2013)."Sfruttando la
is the relative humidity. The low relative humidity means
air is dry and it has a large potential of picking up water.
The lower the relative humidity is, the drier the air is. In
general, one-half reduce in relative humidity is caused by
20 degree increa
1. of minor assets in the depot.
2. Reconciliation of stocks i.e the stock ledger
transactions with the
quantity recorded in stack
2.2 Specific Activities Undertaken
1. Receiving documents
All documents from various departments are received
2.4: Work accomplishment and experience
The ten weeks of attachment period at NCPB has been
instrumental in career development and has broadened my
experience on the application of theoretical knowledge in
the field of Accounting.
2.5: Relationship with s
a) Drying is dependent upon the heat transfer from drying
agent to wet material.
b) Steam heated air, direct flue gases of agricultural
waste, etc. can be used as drying agent
c) Fuel consumption per kg of moisture evaporated is
always higher than that of
clerk must ensure that there is an overlap in each
successive layer. Counting of the gunny bags in stacks is
done periodically so as to account for the purchased
maize bags or transferred maize bags to other depots such
as Konza depot and also to work out
The grains are conveyed from the silo bins via the use of
conveyor belts which are mounted above from the silos to
the stores. The silo operator switches on the conveyors
and elevators transporting the grains from the storage silo
bins to the stores, in t
1. Allowable storage time
Allowable storage time is an estimate of how long the
grain needs to be dried before spoilage and maintain grain
quality during storage. In grain storage process, fungi or
molds are the primary concern. Many other factors, such
a) The insects can survive from one season to the
b) Infested residues in the stores.
c) The structure of the store.
d) Natural habitats like natural vegetation around the
e) Fresh produce can be infested by: Active
migration to the crop in
Pagina, AL, Miller RH e Keeney, DR, EDTS (1982)
Metodi di analisi del suolo .part 2- chimica e
caratteristiche microbiologiche secondo, Edition. la
societ americana di agronomia, Inc.soil scienza
societ d'America, Inc. Salisbury, FB e Ross CW
Cataldo, DA, Haroon, M., Schrader LE e Youngs, VL
1975. determinazione rapida calorimetrica dei nitrati
in tessuti vegetali mediante nitrazione di acido
salicilico. Comm. Terreno .SCI. Analisi Impianto 6:
Chweya, JA, 1984. resa e la qualit del cavo
30%w/w to values between 8 and 15%w/w, depending on
the grain. The final moisture content for drying must be
adequate for storage. The more oil the grain has, the lower
its storage moisture content will be (though its initial
moisture for drying will also
properties as a fertiliser. T. diversifolia accumulates a
large amount of nitrogen and phosphorous from the soil
and therefore makes a very good organic fertilizer. The
stems and leaves are soft and rot easily. When it is cut and
dug into the soil it rots
1. Counting and arranging of the gunny bags
This entails counting of the gunny bags in the stores; this
is done manually using a specific formula because the
gunny bags are arranged as a cuboid.
The formula used is; L*W*H , a particular number of
EET 474_475 Power Electronics
1. A MOSFET is used in a switching power-pole shown in Fig. 2-4a of the textbook. Assume
the diode ideal. The operating conditions are as follows: Vin= 41 V, I0 = 3 A, the switching
frequency fs = 200 kHz, and the
information on their use particularly as liquid fertilizers or
leaf teas for vegetable production by the resource
constrained smallholder farmers. Leaf teas are easier and
quicker to prepare than composts. They have nutrients in
mineral form and they can
low yields and of poor quality something that can also at
times lead to great loses that will in a way affect the
livelihood of these farmers. Production of leaf tea
fertilizer will solve the problem by producing an organic
tea fertilizer which farmers ca
The impeller employed in the Cyclofan is of the
mixed flow type, which blows the air through vanes
to further increase the spin effect initiated by the
impeller. By the extremely intense rotation of
The stores are labeled as S2603001, STORE 001,
The grains MC is first established it is supposed to be
13.5% after undergoing the drying process and being
stored in the silo bins for a particular time. In this
department there is a
produce if covered under tarpaulin or plastic sheets.
Fumigation has only an instant effect so the grain must be
subsequently protected from reinfestation.
Common chemicals used as fumigants:
a) Phosphine gas e.g. Phostoxin is supplied in tablets of
This was manifested by working hard and maintaining
high levels of honesty.
I had also always appeared extremely helpful and happy
to alternative solutions to the companys challenging
I learnt from all of this that to make a positive differenc
b) Treat the building and produce against pests
c) Keep the warehouse clean
d) Close all holes at doors, roof etc., where pests can
e) Repair cracks in walls where pests can hide.
f) Remove and destroy any infested residues that can
Nowadays, chemical control involves,
The use of an insecticide which can be used on the
produce as dust, spray or fumigants Besides killing the
insects, all insecticides are, more or less, toxic to humans.
The toxicity is usually expressed as a "LD50".