73 results about "OXYGEN EXPOSURE" patented technology

A CMOS structure is disclosed in which a first type FET contains a liner, which liner has oxide and nitride portions. The nitride portions are forming the edge segments of the liner. These nitride portions are capable of preventing oxygen from reaching the high-k dielectric gate insulator of the first type FET. A second type FET device of the CMOS structure has a liner without nitride portions. As a result, an oxygen exposure is capable to shift the threshold voltage of the second type of FET, without affecting the threshold value of the first type FET. The disclosure also teaches methods for producing the CMOS structure in which differing type of FET devices have their threshold values set independently from one another.

A mouthpiece that adjusts manually to accommodate a broad range of different size sets of upper and lower teeth in the mouth and yet seals the treatment area from oxygen exposure. The mouthpiece includes one or more light emitters and one or more heat generators. A series of parallel texture bands are provided to guide and direct the light from the light emitters to diffuse generally evenly onto teeth to be treated. The seal arises from an inner surface of the mouthpiece tilting inwardly so that a seal bead seals in the vicinity of the gum above the teeth to be treated. Method for effecting an oral treatment such as whitening or desensitizing teeth or treating gum disease. For whitening, a whitening gel is applied to the user's teeth, the mouthpiece is then positioned in the user's mouth such that a bite surface is between upper and lower arches, a main body is between a front surface of the teeth and an inner surface of the user's lips, and a seal bead is against the user's gums. Then, the light emitter(s) and heat generator(s) are activated to effect the whitening while causing an increase in the temperature of the main body thereby enabling the user to mold the main body and conform its shape to their mouth.

A mouthpiece that adjusts manually to accommodate a broad range of different size sets of upper and lower teeth in the mouth and yet seals the treatment area from oxygen exposure. The mouthpiece includes light emitting diodes and heat generating resistors all arranged in an array. A series of parallel texture bands are provides to guide and direct the light from the LEDs to diffuse generally evenly onto teeth to be treated. The seal arises from an inner surface of the mouthpiece tilting inwardly so that a seal bead seals in the vicinity of the gum above the teeth to be treated.

Systems and methods for preserving a perishable material sensitive to oxygen and bacterial spoilage are taught. The systems in some embodiments comprise a pressurized source of a first gas other than oxygen and a container for the perishable material, the container having a sealable lid, a passage including a one-way valve through the lid connected by a gas conduit to the pressurized source, and a mechanism for venting the container. In various embodiments oxygen exposure to the perishable material in the container is diluted by at least one cycle of pressurizing the container with the first gas other than oxygen, and then venting the container. In some embodiments oxygen dilution is by vacuum.

A CMOS structure is disclosed in which both type of FET devices have gate insulators containing high-k dielectrics, and gates containing metals. The threshold of the two type of devices are adjusted in separate manners. One type of device has its threshold set by exposing the high-k dielectric to oxygen. During the oxygen exposure the other type of device is covered by a stressing dielectric layer, which layer also prevents oxygen penetration to its high-k gate dielectric. The high performance of the CMOS structure is further enhanced by adjusting the effective workfunctions of the gates to near band-edge values both NFET and PFET devices.

A CMOS structure is disclosed in which a first type FET has an extremely thin oxide liner. This thin liner is capable of preventing oxygen from reaching the high-k dielectric gate insulator of the first type FET. A second type FET device of the CMOS structure has a thicker oxide liner. As a result, an oxygen exposure is capable to shift the threshold voltage of the second type of FET, without affecting the threshold value of the first type FET. The disclosure also teaches methods for producing the CMOS structure in which differing type of FET devices have differing thickness liners, and the threshold values of the differing type of FET devices is set independently from one another.

The invention discloses a method for preparing cerium dioxide having different morphologies. The method comprises the following steps: dispersing Ce(NO3)3.6H2O in a NaOH solution, carrying out a hydrothermal reaction at different temperatures, washing the obtained reaction product, drying the washed reaction product, and calcining the dried reaction product at a high temperature to obtain the cerium dioxide having different morphologies. Electrochemiluminescence performance studies show that the cerium oxide has different oxidabilities and different oxygen vacancies due to different structuresand different oxygen exposure ways, the electrochemiluminescence performance of the cerium oxide has no close relationship with the oxidability, but is related to the oxygen vacancies, and the smallcontent of the oxygen vacancies facilitates the electrochemiluminescence reaction. The cubic cerium dioxide has a strong and stable electrochemiluminescence signal, and has a strongest electrochemiluminescence intensity, so the cubic cerium dioxide can be used to construct an electrochemiluminescence sensor, and the sensor has the characteristics of fast analysis speed and high sensitivity when used to detect heavy metal ions, biological micro-molecules, tumor markers and the like.

The invention relates to a method for producing a high-macroelement liquid organic special fertilizer. The method comprises the following steps: selecting raw materials, pretreating the raw materials, performing anaerobic fermentation, performing slag-liquid separation, performing oxygen exposure filtration, mixing and blending and performing refined filtration filling. The content of the macroelement is improved to a high level, and the topdressing problem of organic cultivation is solved; and moreover, the production efficiency is high, the cost is low, and the problems that waste of biogas slurry and sewage is severe even the environment is polluted are solved.

The invention discloses a eutrophic water body repairing compound ecosystem construction method and an artificial reef. In construction, a tip of the artificial reef with submerged plants is insertedinto water body bottom mud, alga organisms are put into a water body after the submerged plants grow stably and appropriate oxygen exposure is performed, biological compound bacteria are put into after the alga organism population is stable, and appropriate maintenance is performed until a system is complete. The artificial reef comprises a hollow artificial reef body made of volcanic rock, wherein gel containing plant root stem bottom ends is added into the hollow position of the artificial reef body, the surface of the artificial reef body is coated with a solidified layer of a sodium alginate gel solution, the hollow artificial reef body is optimally in a conical shape, and the conical tip is inserted into the bottom mud. The compound ecosystem disclosed by the invention has the advantages of simpleness in construction operation, short period, low cost, strong applicability, ability in keeping the water body clear to the bottom for a long time, certain kitchen garbage treatment capability and certain capability in ecologically breeding loaches with high nutritional value.