Clays are processed by mechanical methods, such as crushing, grinding, and screening, however, because clays are used in such a wide range of applications, it is often necessary to use other mechanical and chemical processes, such as drying, calcining, bleaching, blunging, and extruding to prepare the material for use. Kaolin samples originally exhibit white color with high clay brightness, but it mainly contains various amounts, of discoloring elements, such as anatase (TiO2), mica and iron oxides (Fe2O3), which give low brightness and low quality. In addition, the anatase (titaniferrous) and mica can also contain iron contaminants.
West African countries are faced to a lack of access to modern energy such as electricity which can compromise their economic development. In the case of Burkina Faso the electricity production policies must considered energy sources such as agricultural residues (cotton stalks) in order to ensure economic growth. Indeed, Burkina Faso is a great African cotton producer. Thus, the cotton stalks (CS) can be converted into gas by the gasification technology for electricity production. The limit of the gasification is related to the gas quality. Indeed, the produced gas may contain significant amounts of tar which condense at low temperatures, leading to mechanical problems in the engines and in turbines.
Removing of tar from the gas engenders a considerable increase of the kWh production cost as a result of investment in the gas scrubber. The volatile matter content in the biomass is at the origin of tar formation during the gasification. Thus, reducing volatile matter content in raw biomass could reduce the tar content of the gasification gas. Torrefaction and carbonization reduces the volatile matter content and this process can be implemented easily in rural areas. It should be noted that the research results on tar production during the gasification of torrefied or carbonized biomass are scarce.
Industrial robots are widely used
in automobile assembly lines. These robots are called industrial robots since
their goal is to follow some pre-taught paths or way points, which isessentially the same as automation machines. The tasks performed by these
robots include welding, painting, pick-and-place in structured environment (e.g.,
glass installation, door installation, and nut/bolt fastening), etc.
The tasks performed by industrial robots are exciting. On the other hand, there
are lots of tasks remained to be done by human workers. These tasks include
picking parts from cluster,reorienting parts to certain poses, and force-based
assembly. These tasks cannot be done using industrial robots and teach pendantssince: The parts shapes and physical properties are varying. It is difficult to
manually specify the grasping strategies for infinite number of parts. The
initial poses and goal poses of manipulated parts are changing. It is difficult
to teach the robots all motions to reorient different parts.The first two
processes lead to variety in force control and assembly, which also make
pre-teaching difficult.
GSM a computerized portable telephony framework, which is globally gotten to by more than 212 nations and domains. Worldwide framework for portable correspondence is totally enhanced for full duplex voice telephony. At first created for the substitution of original (1G) innovation, now GSM is accessible with heaps of remarkable elements with the consistent up degree of third era (3G) innovation. What’s more, now with the organization together of microcontroller, GSM MODEM could be further perfectly customized for some of exceptionally creative applications including GSM based DC engine controller, GSM based home security framework, GSM based robot control, GSM based voting machine control, GSM based stepper engine coordinator and so on. Fundamental Function of GSM Based E-Notice Board.
In
various avenues of urban scenario, a high rise can be very notorious and have
unpleasant outcomes. At the individual and familial level, living in a high
rise may instigate fears of various kinds in the minds of residents. Thesefears, though, may at some point or some level be unrealistic but they doexist. One is the fear of their dear ones falling or jumping from the height.
This may not essentially be suicide or a criminal activity. But this fear
relates more to children and elderly who usually cannot hold their senses in
many of their activities and stand a good chance of falling off while engaged
in some chores. This other fear rises from the uncertainty of any natural
calamity or manmade mishaps like earthquake and fire.
The residents of tall
buildings fear that in case of any such occurrence their lives would surely be
jeopardized as they are far above the ground and by no means can they reach the
ground within a short span of time. High Rise buildings can hold thousands ofpeople above the reach of fire safety people and their devices and once the
height reaches the level which is beyond the reach of fire department, the
chances of saving lives stands negligible in case of fire. Then there is also
the fear of falling prey to communicable diseases which are air and touch borne
which spreads more easily when many people share hallway, door and elevator
buttons.
Since its introduction in 2005, robotic assisted surgical procedures have been widely adopted by gynecologists to perform surgical procedures such as cystectomies, sacral colpopexies, myomectomies, radical hysterectomies and cancer staging surgeries. Recent studies show that, as compared to a conventional laparoscopic procedure or laparotomy, robotic surgery is associated with decreased blood loss; lower conversion rate; less intraoperative complications and shorter hospital stay. Robotic assisted staging surgery has also been increasingly employed for a variety of gynecological malignancies such as ovarian, endometrial, and cervical cancers.
This mini-review describes aspects of human-robot interaction to be taken into account when designing humanoid robots with novel roles and social abilities. Humanoid robotics is gradually taking novel roles and is performing tasks usually referred to by people as “professional”. Author proposes to keep in mind the tendency of people to animate creatures as part of their internal confidence with the external living and non-living world. The perspective is designing based on the social level of human-robot interaction process or on modelling attitude - friendly, supportive and empathic - which can be a valuable aim for humanoid robotics.
Cowpea
(Vigna unguiculata or Vigna sinensis nunguiculata) is a popular leguminous crop
in Africa which is known as “black-eyed peas” in America. In Nigeria, it is
known as ‘beans’. Kano State is one of the largest cowpea producing areas in
Nigeria, cultivating about 4,050 ha which yields above 1,000 kg/ha compared
with the national average of 212 kg/ha. Common varieties include SAMPEA 10,
SAMPEA 8, and Oloka. Cowpea is one of the most highly proteineous African cropthat feeds people, their livestock and the next crop. The nutritional value of
cowpea is in the composition of its grain. Cowpea grains are rich in amino
acids, lysine and tryptophan making it better than cereal and root and tuber
based diets of many coastal and forest communities. In Nigeria and some other
West African countries, cowpea grains are eaten in various forms; as porridge
along with fried or boiled yam or plantain, as bean cake called akara or kosei among
Yoruba and Hausa respectively, as moin-moin which is steamed – cook of wet –
milled cowpea mixed with cooking ingredients, and cowpea stew called gbegiri in
Yoruba language.
De-hulling can be defined as
the removal of seed coat (hull) from the seed, resulting in the separation ofthe cotyledons from the hulls. In the rural sector, the wet method of
de-hulling process is still part of the house wife’s manual work in food
preparation. Water soaking is used to facilitate hull removal.
In 1932, La Barre used the word “incretin” to refer an extract from upper gut mucosa that produce hypoglycemia. . Incretins are a group of metabolic hormones which are having mimetic effect of insulin. It helps to increase the amount of secretion of insulin from the pancreatic cells of Islets of Langerhan’s after meal. It also play vital role for decreasing the rate of absorption of nutrients from gut into blood by reducing food intake, inhibit glucagon release from the alpha cells of pancreas. Two types of incretin hormones have been identified in ruminants and human, such as glucose dependent insulinotropic polypeptide (GIP) and glucagon like peptide-1 (GLP-1). More than 200 species (1200) of medicinal plants have been claimed to have antidiabetic properties. Out of them, around 33% have been scientifically studied and documented.
The study revealed that these drugs are having ability to modulate one or more pathways and regulate insulin resistance, beta cell function and GLP-1 homeostasis . Research based studies showed that berbery, bitter melon, cinnamom tree, gardenia, Korean pine, little dragon, mango, pygeum, fenugreek and lychee composed of insulinotropic compounds. But isolation of active metabolomics and the multicentre base clinical trials are needed to propagate the herbal medicine in the world.
There have been several incidents of fuel tank explosion on commercial transport airplanes, which in some cases, have resulted in loss of lives and aircraft. Experts predict that fuel tank explosions on commercial airplanes could escalate due to increased number of electrically operated components inside fuel tanks, such as booster pumps, quantity probes, level sensors, fuel valves, etc. The U.S Federal Aviation Administration (FAA) states that in order to reduce the risk of fuel tank explosion on large transport aircrafts, any internal or external ignition source inside fuel tanks must be eliminated. When heat or a spark of sufficient energy comes into contact with fuel and oxygen, the result will be fire or explosion. Fuel leakage onto hot surfaces such as engine, APU, brakes, wheels, electrical fuel pump, hydraulic pumps, etc., may also result into fire and consequently fuel tank explosion.
The aim of this paper is to present a technique, which can be used on large transport airplanes, to detect fuel leak in fuel tanks before aircraft departure. Fuel leaks could lead to fuel tank explosion, and consequently could result in loss of aircraft and lives. Clearly, it is very important for any fuel tank leakage to be identified and repaired before takeoff.
During the past years, various systems for repairing reinforced concrete structures using fiber reinforced polymers (FRPs) have been developed. These systems can be used, essentially by bonding FRP plates, sheets, or strips to the exterior surfaces of reinforced concrete members with a structural adhesive such as an epoxy polymer resin, to strengthen concrete beams and slabs in both flexure and shear, to increase the strength of structural connections. There is a little readily available information on FRP performance at elevated temperature, as would be experienced in hot service environments (70°C to 200°C) or during well-developed building fires (exceed 1000°C), or after exposure to elevated temperatures resulting from various causes.
The most common strengthening technique is based on the application of the FRP on the surface of the elements to be strengthened and is designated as externally bonded reinforcement (EBR) technique. Recent research has revealed that this technique cannot mobilize the full tensile strength of FRP materials due to premature de-bonding; several attempts have been made to overcome the defects of EBR. Strengthening with near-surface mounted (NSM) FRP which is based on the concept of bonding glass or carbon FRP rods or laminates into pre-cut grooves opened in the concrete cover of the elements to be strengthened.
Clays are processed by mechanical methods, such as crushing, grinding, and screening, however, because clays are used in such a wide range of applications, it is often necessary to use other mechanical and chemical processes, such as drying, calcining, bleaching, blunging, and extruding to prepare the material for use. Kaolin samples originally exhibit white color with high clay brightness, but it mainly contains various amounts, of discoloring elements, such as anatase (TiO2), mica and iron oxides (Fe2O3), which give low brightness and low quality. In addition, the anatase (titaniferrous) and mica can also contain iron contaminants.
