Based on the oil shale in Huadian mining in situ underground， under the condition of near critical
water to make oil shale pyrolysised， it is found that different extraction time influences the activation energy and
the extraction yield， and different extraction temperature affects extraction yield．The study of kinetics model of
oil shale pyrolysis in situ shows that the optimal conditions for the shale oil extraction are the near－critical water extraction temperature about 360 ℃ ， as well as the extraction time more than 40 h．

Using solid catalyst to catalyze the reaction of trimethylolpropane and acetone， we study on the
effects of reaction time，reaction temperature，dosage of catalyst and catalyst carrier of acid on the reaction．And
we get the optimum reaction conditions: catalyst supported acid is 50%， the reaction time is 6 h and the
amount of catalyst is 20% of total quality raw materials．The reaction product is characterized by IR spectra and
the reaction conversion rate can reach 98．3%．

The CTC conversion in the process of CSM production size ( in consumption meter) as well as the
main point of divergence of CTC emissions was determined．The results showed that the total consumption level
determination of CTC，chloroform consumption level and mixed solvent consumption level are 89．4 kg /t-CSM，
90．64 kg /t-CSM and 180．04 kg /t-CSM，respectively．At the same time，some of the CTC convert into the other
non ODS material through the chemical reaction．

The most recent achievements in the construction of phenyl pyrimidine compounds have a wide
range of uses in the field of medicine and pesticide． This paper mainly introduces the synthesis of phenyl
pyrimidine compounds: by coupling reaction， by the construction of aromatic ring and by the construction of
pyrimidine ring．

The gas production has a great relationship with temperature in Biogas fermentation process． An
optimum temperature is the necessary factor to ensure that the raw material in the fermentation tank microbes
can form stable dominant population and to improve gas production．Through analyze the temperature field of
fermentation tank used ANSYS can get the temperature of bottom， roof and the whole tank along the cross
section temperature distribution of tank wall， obtain the roof diffusion rate is the largest， second is the whole
tank，and the tank bottom is the minimum．If just consider the perspective of heat，the heat dissipating capacity
from high to low in turn is the whole tank， roof and the tank bottom．， It is a better guide that the analytical
results compared with the theoretical calculation and combination in practical application．

This paper developed a new type of hexapod robot using self-developed flexible space bending joints
which can not only move from side to side or back and forth but also rotate． The shape of the body， leg
structure，motion principle and walking gait of the flexible joint six legged robot are studied．The test bed was
set up，and the rationality of the robot gait was verified by means of high-speed video and other experimental
methods．For pneumatic flexible joint six－legged robot application in practice， provides the basis of theory and
practice．

Open laboratory is an important implementation of innovation ability cultivating mode．According to
the practice in electrical engineering and automation of Jilin Institute of Chemical Technology， a circuit
simulation design method of Simpowersystem in open laboratory construct system is proposed in this paper．The
teaching content of basic verification， comprehensive design and innovation professional research is
implemented respectively by open laboratory simulation platform， and the correctness and expansibility of
hierarchical independent study content is tested and analyzed by forms of multiple simulation．According to the
nearly two years examination paper result analysis，vivid and intuitive open simulation platform can effectively
improve students’understanding of knowledge， cultivate the consciousness of innovation， and improve the
overall teaching effect．

Through the water quality analysis and comprehensive evaluation analysis， the water quality of
Luoma Lake，including BOD5， TN， TP and Chla， was some difference of the regional water quality pollution
degree， overall pollution reached Ⅴ class water quality， belongs to the nutrition of lake eutrophication state
level．According to the results of sample analysis， combined with the surroundings， control measures of Luoma
Lake water body eutrophication and relevant suggestions to improve the countermeasures are put forward．

To compare the X-rays of vitamins B1， B2， B3， B9， B12 and C， and to explore the identification of
the above vitamins by X-ray diffraction．Experiments were carried out using domestic X－ray diffraction ( XRD) ．
The data was processed using MS Modeling software and Sam4wine software． By comparing the above six
vitamins with X-ray diffraction we can see that diffraction intensity from strong to weak order followed by
vitamin C，B2，B3， B9， B12， and B1．Vitamin C has a strong XRD phenomenon．XRD method can be used to
identify vitamins，especially for vitamin C in the quality control of proprietary Chinese medicines．

( Ba_1－xMg_x) TiO₃ and Ba(Ti_1－xMg_x)O_3－x(x = 0.015) ceramics were prepared by the solid-state
reaction method at a sintering temperature of Ts = 1400 ℃ ． Electron paramagnetic resonance (EPR) was
employed as a key technique to study the point defects of ceramics． The results show that BMT ceramic
exhibited the mixed phases of hexagonal and pseudo cubic perovskite structures， BTM ceramic exhibited the
mixed phases of hexagonal and tetragonal perovskite structures．An EPR signal at g = 1．956，which is associated
with oxygen-vacancy defects，was detected in the rhombohedral phase below T = －100 ℃ ．Three types of point
defects of Ba，Ti，O vacancies could coexist in ceramics．

The site occupations of Tm³⁺ ions in the BaTiO₃ lattice has always been a controversial problem．For
ceramics prepared according to the nominal formula ( Ba_1－x Tm_x ) Ti_1－x/4 O₃ ( BTmT) and Ba ( Ti_1－x Tm_x ) O₃
( BTTm) ， X-ray diffraction ( XRD) and electron paramagnetic resonance ( EPR) techniques were used to
identify the site occupations of Tm3+ ions in the BaTiO₃ lattice．The results indicated that the position of Tm³⁺ in
BaTiO₃ lattice is related to Ba /Ti ratio．In the case of Ba /Ti＞1， Tm³⁺ ions are basically insoluble in BaTiO₃
lattice．When Ba /Ti＜1，the solubility limit of Tm³⁺ ions at the Ba-sites in BTmT ceramics is x = 0．02，and these
ceramics exhibited a tetragonal perovskite structure． a conclusion can be drawn by comparing the volume of
crystal packages that Tm³⁺ ions showed the amphoteric behavior that occupied Ba sites and Ti sites．

Ba(Ti_1－xMn_x) O₃ ceramics were prepared for x = 0．06， 0．07， 0．08 and 0．09 using a cold －pressing
ceramic technique． The crystal structure and microstructure of Ba (Ti_1－xMn_x) O₃ ceramics were investigated
using X-ray diffraction and scanning electron microscopy． The XRD results showed that Ba(Ti_1－x Mn_x)O₃
exhibited a hexagonal structure as x≥0．06， and Jahn-Teller distortion caused by the was a driving force for the
hexagonal phase．Columnar grain morphology observed was assigned to the hexagonal phase．

In this paper， BaWO₄: Yb³⁺， Tm³⁺ powder with ideal luminescence properties was synthesized by
hydrothermal method．The effects of doping ratios on synthesis were studied．The best preparation process was
determined．The products are characterized by X－ray diffraction and scanning electron microscope．The results
indicate that Yb3⁺-Tm³⁺ co-doped BaWO₄ is tetragonal crystal system，the particle size ranged from 25 to 40 nm
and dispersed uniformly．The spectrum was measured with Hitachi F － 4500 spectrophotometer under 980 nm
diode laser excitation． The results are as follows: The emission peaking of BaWO₄: Yb³⁺， Tm³⁺ nanocrystal
located at 457， 478 and 650 nm corresponding to ¹D₂ →³F₄， ¹G₄ →³H₆ and ¹G₄ →³F₄ transitions of Tm³⁺，
respectively．The results show that the luminous intensity is best when concentration ratio of Yb³⁺ /Tm³⁺ is 7 1，
and the pertinent up-conversion mechanism model of the sample were proposed．

By wet digestion procedure with HClO₄/HNO₃ to high pressure tank samples， we used inductively
coupled plasma-atomic emission spectrometry ( ICP-AES) to direct determine 14 kinds of trace elements of
Changbai mountain lime tree pollen， including K， Mg， Ca， Ba， Fe， Zn， Cu， Mn， Al， Se， Sr， Cd， Cr and Pb．
Experimental conditions were optimized throughor thogonal experiments and their variance analysis． The
standard addition recovery of the method was between 95．8% ～ 106%， and the relative standard deviation was
less than 2．14%．The results showed that the Changbai mountain lime tree pollen powder contained a lot of K，
Ca，Mg，Fe，Mn， and other trace elements．The method had high sensitivity， accuracy and precision．The result
was satisfactory．

Salicylic aldehyde is irritating for the respiratory tract， when inhaled it can cause cough， chest
tightness and other symptoms．We designed a fluorescent probe －-silver nanoclusters protected by polyethylene
amines ( AgNCs@ PEI) ．Basing on the formation of the Schiff base between salicylic aldehyde and AgNCs@
PEI，it can quench the fluorescence probe to achieve the detection of salicylic aldehyde． This fluorescence
probe has good selectivity toward salicylic aldehyde and a good linear relationship between 100 and 500 μM
( R² = 0．991 8) ．A detection limit of salicylic aldehyde is 0．32 μM by this probe．

Based on the data of the universities，junior high schools and illiterates in the national data networks
in 1990，2009 and 2014，this paper uses the system clustering in cluster analysis to evaluate the population’s
cultural level in different regions by R software． According to the differences in the cultural level of the
population around the country，it can be divided into several categories，and give a reasonable proposal.

In 17 century，Fermat came up with a guess-Fermat’s Last Theorem which troubles people near 300
hundreds years based on the Pythagorean Theorem． In the paper， we want to use the algebraic form of the
Pythagorean theorem，and combine the form with series，polynomial of one indeterminate and matrix．Finally，we
get some new results and ideas．

In order to study the frequent failures of a series of aircraft: when the flaps are in the down
position，press the“Close”button， the flap retracts slowly， accompanied by the phenomenon of oil leakage in
the cold gas port of emergency valve．The principle of aircraft flap is analyzed， and the emergency valve was
tested by air pressure experiment and hydraulic pressure experiment．The test results show that the emergency
valve works well and there is no air leakage，oil leakage and oil seepage during the test．The cause of the failure
may be: the flaps are in the down position， do not press the “restore”button， press the “close”button
directly; the attachment has been used for a long time， the contact gap between the conical end of the piston
and the emergency valve port has become large， resulting in the oil seepage． The experimental pressure was
higher than normal working condition，so no seepage is observed during the test．The oil contains impurities that
sandwiched between the conical end and the cold air port，causing the gap between the two，leading to the oil
seepage．

From the perspective of maintenance，common faults auto vehicle CAN bus system is introduced in
this paper， fault classification， fault diagnosis methods and steps of fault diagnosis， and combining the
breakdown maintenance examples further illustrate， for the automotive vehicle CAN provide reference for
system fault diagnosis and maintenance．

The construction of digital campus information sharing and integration platform reflects the
information development degree of school．Set Jilin Institute of Chemical Technology as an example， based on
the actual situation， the information sharing and integration platform is constructed， and the three basic
platforms have already set its subordinate division． Following the development of the era and the actual
operation of the platform，the design is further improved．Therefore，it can provide the experience accumulation
for school digitization construction．