Siheyuan diet for men and women

Chapter 175
Fu Bin also laughed, and took a look at Zhao Yajun. There was nothing unusual, he was just a kid from the mountains.

At this moment, the pick-up team members came back, Li Xuewu stepped forward to take the workpiece, took out another bullet, unscrewed the bullet with both hands, handed the end of the charge to Zhao Yajun and said: "Let Heizi familiarize himself with these "

Zhao Yajun put the workpieces and gunpowder bins on the ground, and picked them up one by one for Heizi to see and smell.

Fu Bin and Dong Xuexue stood aside and watched silently, while the five team members stretched their necks to look at Zhao Yajun, not knowing what to do.

After getting acquainted for a while, Zhao Yajun nodded to Li Xuewu, and Li Xuewu gestured towards the guard dormitory.

Zhao Yajun led the dog and trotted back to the dormitory.

Li Xuewu asked the five guards to stand apart, hid workpieces on three of them, and hid the gunpowder compartment in the upper of Dong Xuexue's shoes.

Seeing the teacher dumbfounded, Li Xuewu apologized, stood up and waved to Zhao Yajun who was standing by the window and looking this way.

Zhao Yajun got the order, led the dog and ran back again. When he came to several people, Zhao Yajun pointed at them and gestured for the action just now, and Heizi came over wagging his tail.

The few people standing were a little nervous, afraid that the dog would bite people.

Heizi smelled the scent of several people, and was about to rush towards the one who hid the workpiece, but Zhao Yajun hurriedly stopped him.

Heizi thumped and said "Woo" twice at the three of them, turned around in a circle and then stared at Dong Xuexue, bared his teeth and wanted to pounce.

Fu Bin waved his hand and said, "Okay, okay, let's go here."

This time, Heizi only found a workpiece and additional bullets. The result was not very ideal, but it made sense.

Seeing the effect, Fu Bin interrupted and asked Li Xuewu, "I have a question in the office. Logically speaking, steel and metal have no smell. How did the dog find it?"

Dong Xuewu also looked at Li Xuewu, wanting to see if his students had done their homework.

Li Xuewu also learned some knowledge of chemistry from later generations, and roughly explained: "Metal itself has no taste. After the skin touches iron, the iron is oxidized to form a small amount of ferrous ions, which are quickly oxidized into ferric iron, while Lipid peroxides on the skin are reduced to volatile carbonyl-containing compounds that produce flavor."

Fu Bin's education level was limited, but he could grasp the key points and asked, "What is the compound of ferrous ion and carbonyl?"

Li Xuewu explained seriously: "A kind of iron ion was discovered by foreign scientists in 1887, and the carbonyl compound was discovered in 1890. It was originally a nickel wire combustion experiment."

Li Xuewu saw that the two were a little confused and stopped explaining this, but said: "There are many kinds of carbonyl compounds obtained from skin contact with workpieces, and the one that contributes more to the taste is 1-octen-3-one. This molecule has The typical musty metallic taste can be detected by people when the concentration is only 50 nanograms per cubic meter, and the nose of dogs is 20 times more sensitive than that of humans.”

Dong Xuexue nodded and looked at the student approvingly, and asked, "Will it produce a taste just by touching metal?"

Li Xuewu nodded and said: "Because the reaction speed is very fast, as soon as the skin touches metal and is oxidized by fat peroxide, it will immediately produce a smell, so the metal surface of common iron products containing ferrous ions, rust, drinking water, etc. Blood, as well as copper products, produce this smell after contact with the skin, and the evolutionary reason for this ability in dogs may be the need to smell blood."

Fu Bin nodded and said, "We have some workpieces that don't touch people. What if the workers wear gloves to steal?"

Li Xuewu nodded and replied: "I have considered what the director said. Sometimes, metals that have not been directly touched by people will also produce a metallic smell. This smell is a bit like the smell of garlic."

Li Xuewu saw that the listeners nodded in affirmation of the smell, and explained in detail: "Iron and steel products are not pure metallic iron, but contain carbon and phosphorus. When iron and steel products are subjected to acid After erosion, some small organic phosphorus molecules will be released, especially methylphosphine and dimethylphosphine. People can smell it when the phosphorus content reaches 3-6 nanograms per cubic meter, so this kind of garlic-like metal The smell is actually from methylphosphine and dimethylphosphine. This garlic smell also has some calcium carbide smell in it, which comes from some unsaturated hydrocarbons, which are obtained from carbon in steel products."

Fu Bin smiled and said to Dong Xuexue: "Section Chief Li came prepared. I, who don't know materials, can understand it. It seems that the level of education can determine the level of a cadre's work."

Dong Xuexue replied with a smile: "He also knows a theory. If you want to talk about the practice, you still have to do it. The predecessors planted trees and the descendants took advantage of the shade. Without the hardships of the predecessors, how could he have the opportunity to talk here?"

Fu Bin smiled reservedly and said to Dong Wenxue: "You, I'm speechless if I can always say it, that's all right, let Section Chief Li submit the materials later, let's go to Deputy Factory Manager Li and report This matter is settled"

Li Xuewu hurriedly went to the teacher's feet to take out the gunpowder bin, and was glared at by Dong Xuexue with a smirk.

"Alright director, let's go back first," the two of them turned and went back to the office building.

Li Xuewu took out the meal ticket and handed it to Zhao Yajun, saying: "Go to the dormitory first, and you will follow them to the cafeteria to eat later, and give Heizi a share too."

After speaking, he said to the team members just now: "Return the workpiece, don't talk nonsense."

After waving with Zhao Yajun, he went back to the office building.

After entering the office and starting to write the application report, Li Xuewu lit a cigarette and thought about it for a while, then took out the pen and manuscript paper and started writing.

The preliminary plan is to buy ten hounds, both male and female, to facilitate later training.

The second point is to establish a regular police dog team, and in the establishment of the factory guard team, the location is temporarily set up in the parking lot of the transportation team. There is still an empty garage there, which can be rebuilt into a kennel.

The third is to recruit dog trainers, those with hunter experience are more suitable.

The fourth is the domestication system of dogs, establishing daily management and use regulations, dog food is hung in the cafeteria, it can be leftover soup, bones, etc.

The fifth is that daily patrols should be carried out with dogs, so as to replace training with training.

Li Xuewu wrote everything he could think of on the paper, signed it, and called Wang Jianguo to Dong Xuexue's office to deliver the documents.

I started to process the planning documents submitted on Monday.

After finishing the work at the beginning of this week and signing the documents, Xu Ning knocked on the door with a stack of document bags, followed by Han Yating who was holding a folder.

"Section chief, I pulled out Hu Zhengquan's information, not just him, but also other people in the laboratory building"

"Section Chief, today's inquiry record"

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(End of this chapter)