Chapter 910 Is Very Reasonable

Wang Chuanxing copied a copy of the paper on which Jiang Yuanyou had judged his age of death, and then gave it to several experts to read.

Professors Sun, Li, and Zhang drew on the paper, and then divided the page into three parts, and then each of them set up their positions to check.

They were too familiar with and too used to seeing other people's achievements and giving comments.

Despite this, the three people were still very cautious.

Judging the age of a corpse at the time of death can be said to be a very difficult and valuable academic issue. Moreover, the judgment of the age of death of a corpse is closely related to the development and application of science and technology.

In other words, it is normal to make mistakes, and it is normal to make errors.

In order to reduce errors and avoid mistakes, everyone naturally has to use various means and try various solutions. A more typical way is to use a more suitable regression equation.

The regression equation is not a martial arts secret book, but more of a statistical result, and it is basically public - but it is a bit like a martial arts secret book. Some scholars have studied or statistically developed a useful regression equation, and they can also keep it secret and use it themselves. Especially today when there are more and more horizontal commercial projects, even if scholars want to make the newly researched regression equation public, commercial companies may not be happy.

On the other hand, the most important thing about the regression equation is not the equation itself, but its preconditions, that is, under what conditions, what regression equation is used.

This is also very much like a martial arts secret. The same regression equation may be very suitable for white people, or even more specifically, it may be more suitable for Caucasians. At this time, you take it and use it on yellow people. Whether it is easy to use, whether to adjust it, whether to add a coefficient, and where to add the coefficient, that is a very sophisticated and martial arts secret part.

Going further, a regression equation that is very suitable for judging the age of death based on the nose bone of yellow people is not necessarily accurate for all yellow people. After all, yellow people include Sino-Tibetan language family, Uralic language family, Mongolian language family, Tungusic language family, Eskimo-Aleut language family (ancient Siberian languages), South Asian language family, Indonesian language family, Indian languages, and Polynesian language family. And just for the facial features of Chinese people, there are seven major classifications, including Bohai Rim type, North China type, Northwest type, Central Plains type, Miao-Yao type, Baiyue type, and North Asia type. (Note)

In addition, the temperature and humidity of the area where the corpse is located, the altitude, whether it is above ground or underground, and the classification of local insects or microorganisms will affect the statistical results.

Therefore, it is easy to make a rough judgment, and various general regression equations can be used at will, but if you want to be accurate and make it more detailed, it will be very difficult.

At the very least, you have to distinguish the various attributes of the skeleton first, and then find a suitable regression equation. If there is no suitable one, you may have to research and develop a set yourself. As for the final use and calculation, that is the least valuable part.

For the three professors Sun, Li, and Zhang, mastering and skillfully using those general regression equations is not a problem at all. Judging the race and environment of the corpse is also a basic operation.

But if you want to refine and refine, you will always encounter bottlenecks.

The three people first checked the skeletons that they were more confident in. As they calculated, they began to hesitate.

Each skeleton has its own different situation. After checking the familiar ones, the rest had to be checked... in the book.

Professor Sun let go first, said "I'll check", and asked the students to bring their laptops.

Professor Li and Professor Zhang saw it, and they were no longer reserved. They all took out their computers and PADs, or sent messages to the students in the laboratory, asking them to send the regression equations they needed.

The regression equations used in anthropology are all a set of equations consisting of six or seven, or even more than a dozen equations in a row. The commonly used ones may be memorized, but the less commonly used ones basically have to be looked up. Especially for professors, they rarely calculate by themselves in daily life. Even if they remember some, they dare not use them directly by heart. If they make a mistake, it will be really embarrassing.

However, academics don't really care about whether they can memorize equations. Several people still concentrate on checking the age of death.

There are many skeletons in the tomb of King Yong, but the situation is very complicated. The most important thing is that the body of King Yong was in a coffin, and the princess who was buried with him was buried later. The conditions in the tomb were different. The remaining bones were different with and without coffins. In addition, this large tomb was actually excavated, but the excavation was not deep enough, and some bones were exposed in advance.

For anthropologists, this series of changes is like a problem that keeps getting harder.

Even if it is just a check, because the age range given by Jiang Yuan is very small, it also makes several people have a headache.

Click, click, click.

The printer keeps ringing.

"Professor Li." Wang Chuanxing sent another printed paper to the nearest professor and said, "This is the judgment of the age of death that Team Jiang just completed."

"Ah, another... 10 more?" Professor Li looked at it and felt incredible.

But to say that Jiang Yuan did it randomly, he looked down at the several corpses he had examined, and obviously couldn't say such a thing.

"How is your side?" Professor Li whispered to the other two.

"There is no problem with my verification. The difference is only one or two years at most. Everyone has different numbers." Professor Zhang said.

Professor Sun took out his mobile phone and said, "I'll ask the students... Well, there is no problem with the verification."

Professor Li raised his eyebrows, and then distributed the 10 numbers he just got to the three people. He randomly found a corpse number and age, checked the photos and the data taken at the scene, and checked again.

The result is naturally consistent.

After checking to this point, Professor Li felt that he had overused his brain. He simply laughed and pushed the notebook in front of him, saying, "Professor Tao has found a strong helper for us."

"That's because you haven't contacted Jiang Yuan, and you don't communicate much with the criminal investigation circle." Tao Yajie also laughed and said, "Forensic doctor Jiang specializes in solving major cases. He has solved cases using anthropology countless times."

"No wonder, criminal investigators like to make precise judgments, right?" Professor Li found a reason for himself.

Jiang Yuan looked up at this time and smiled: "That's not the case. Accuracy is still the first priority. If there is no urgent need, we usually take no mistakes as the most basic requirement."

"That's right." Professor Li subconsciously followed Jiang Yuan's words, and then thought about it, and suddenly felt a taste of Versailles.

You took the most basic requirements as your goal, and ended up accurately determining the age of death of the corpse to the year?

From the perspective of anthropology, this can almost be said to be a kind of show-off.

"Wait for me for a few minutes." Jiang Yuan did not mean to chat, and after saying a few words, he lowered his head and got busy again.

In less than 10 minutes, Jiang Yuan handed the A4 paper in front of him to Wang Chuanxing again, and then smiled and said: "In this way, the judgment of the age of death is completed. What should we do next?"

The three absent-minded professors couldn't help but raise their heads.

"The judgment of the age of death is all done." The three didn't know how to express it.

In fact, if the experts had been in any fingerprint group, forensic group or trace examination group, they would never argue with Jiang Yuan about the identification of the age of death.

Jiang Yuan's LV6 identification of the time of death cannot be said to be omniscient and omnipotent, nor can it be said to be perfectly adapted to the identification of the age of death, but with this level of skills and LV3 forensic anthropology, it is still a crushing level. Compared with ordinary expert players who reach the top at LV3, it can be said that they can kill gods and Buddhas.

"Next, I will do the identification of the cause of death." Jiang Yuan arranged the task for himself, which was reasonable and impeccable.

The three professors nodded subconsciously.