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14.10.2015

How to start the working day - with a small job or a big one? Which debts should be paid first - small or large? Alexander Brown and Joanna Lahey from Texas's largest A&M University (from Agriculture and Mechanical College) became interested in this issue.

Scientists have come to the conclusion that the path of small victories is more productive and more stimulating for further activity than the desire to first throw off the largest burden.

The researchers set up their experiments using a tablet created in the Excel program. Participants in the experiment had to type one and a half hundred lines in it, which consisted of ten letters. At the same time, tasks were divided into portions in three different ways: the number of lines in each new portion increased; the number of lines decreased, and all portions contained an equal number of lines. The experiment showed an intuitive result - the closer the end of the portion was, the faster the participants in the experiments worked. Because of this, in the first case, the entire task was completed faster than in the other two. It is interesting that each time a person started work less willingly than he continued: at the beginning of the filled column, he pounded the keys more slowly than at the end.

“Small wins increase a person’s motivation to continue activities, so it’s often better for mental health to deal with small debts first, even if the interest rates on them are lower than those left for later. the debt has not become unsustainable,” say Brown and Lahey.

But we know how important it is to get every day, every hour, at least a small, but success, when organizing decisive action. Less than a hundred years later, proprietary marketers confirmed this practical observation.

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Random news from the Archive

Temperature sensor TMP107 22.11.2016

The new TMP107 temperature sensor supports up to 32 devices in series. A chain of TMP107 sensors is connected to the microcontroller via one single-wire UART interface.

Each sensor has a unique 5-bit address stored in electrically erasable programmable memory (EEPROM). The address is assigned during the auto assignment operation and is based on the position of each sensor in the chain. The transmission distance of the UART bus can be up to 300 meters. Data is transmitted between sensors using the proprietary SMAART Wire protocol.

The TMP107 provides maximum flexibility in use, allowing you to choose between low power consumption (e.g. when running on batteries) and high refresh rates for real-time applications.

The warning function of the TMP107 is implemented with two registers for storing programmable values ​​for low and high temperatures. After each measurement, the temperature is compared with the values ​​from these registers. When the specified range is exceeded, the sensor sends a corresponding signal, which can be processed by the microcontroller or displayed on the alarm warning LED.

The TMP107 is capable of reading temperature with a resolution of 0,015625°C and an accuracy of +-0,4°C in the range from -20°C to +70°C. This sensor is ideal for replacing NTC and PTC thermistors in applications requiring high measurement accuracy, such as industrial, medical, environmental, and grain storage temperature control systems.

The TMP107 is housed in a SOIC-8 package and is designed for use in a temperature range of -55°C to +125°C.

Features:

High accuracy:
+-0,4°C (max.) at -20°C to +70°C;
+-0,55°C (max.) at -40°C to +100°C;
+-0,7°C (max.) at -55°C to +125°C;
High resolution: 14 bits (0,015625°C);
UART-compatible wired SMAART interface;
Support up to 32 serial devices;
EEPROM for unique addressing, programmable values, general purpose data storage;
Continuous operation and shutdown mode to save energy;
Single conversion mode for energy saving;
Programmable warnings;
Temperature range: -55°C to +125°C;
Voltage range: 1,7 to 5,5V;
Chassis: SOIC-8.

Applications:

Refrigerators and refrigerating chambers;
Distributed temperature measurements;
Thermal protection of power supplies and batteries;
Servers and telecommunication systems;
Building automation;
Agricultural machinery;
Medical instruments;
Industrial systems.

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