Drought Events and Causes in North China in 2018

2020 ◽  
Author(s):  
Jianying Feng ◽  
Yu Zhang ◽  
Suping Wang
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Inner Mongolia ◽  
Northeast China ◽  
North China ◽  
Air Flow ◽  
Liaoning Province ◽  
Severe Drought ◽  
Pressure Ridge ◽  
Moderate Drought

<p>In 2018, severe meteorological drought occurred in the southwest of Northeast China, the  east-central of Inner Mongolia and the east of North China. Drought shows obvious regional and stage nature .In early March, mild to moderate drought appeared in North China, followed by severe drought in parts of northern and eastern of Hebe province. After the middle of April, the drought was alleviated obviously, and the drought in the southwest of Northeast China began to show signs. In  early May, there was mild to moderate drought in the central and eastern part of Inner Mongolia, and the drought in Northeast China developed. From June to early August, severe drought and above occurred in parts of Liaoning province , Inner Mongolia and North China. In mid-August, in addition to Liaoning province and North China, there were scattered light to moderate drought, drought relief in the northern China. In early September, the drought in North China increased and the range spread northward, and there were droughts of different degrees in the whole North China.In winter, there is only mild drought in North China.</p><p>The drought in this region has affected the agricultural production in different degrees. Spring sowing is blocked in the east of Inner Mongolia and the west of Northeast China, and high temperature in summer leads to the development of drought, corn and rice and other crops are adversely affected.</p><p>From spring to autumn, the precipitation in most parts of the drought disaster  area is less than 10-40%, and the temperature is higher than 1-2 ℃. The lack of precipitation and abnormal high temperature accelerated the loss of surface water, which resulted in the occurrence of drought in this area.</p><p>In spring of 2018, the middle and high latitudes are generally controlled by flat air flow, which is not conducive to the establishment of trough ridge, making the northern dry area lack of favorable precipitation conditions; in summer and autumn, the existence of Baikal Lake high-pressure ridge, resulting in circulation patterns that are not conducive to the precipitation conditions in the northern dry area. Among them, the obvious flat air flow in spring and the obvious high pressure ridge in summer are the main reasons for the outstanding drought in spring and summer in the northern arid area.</p>

Period and Development of Attached-Rim Vessels in Northeast China

2020 ◽  
pp. 35-78
Author(s):  
Kang Won Oh
Keyword(s):  
Inner Mongolia ◽  
Northeast China ◽  
Fourth Century ◽  
Jilin Province ◽  
Liaoning Province ◽  
Exchange Relationship ◽  
The Third ◽  
South Central ◽  
River Region ◽  
Triangular Area

In the case of attached-rim vessels in Northeast China, the scale of the pottery vessel type was reduced to meet a demand for minimal living of the people at that time due to a way for groups living in low hills of Aohan Qi located in the EastSouth inner Mongolia, and it has emerged from the process of improving the existing double-rimmed deep bowl pottery while focusing on its practicality. Attached-rim vessels that have emerged from Shuiquan Type for the first time spread to regions adjacent to the EastSouth inner Mongolia and the Liaoxi region, attached-rim vessels in the Lioaxi region spread again to the Zhengjiawazi Type located in the midstream of Liao River, and other surrounding areas spread the relevant vessels through the exchange relationship with Zhengjiawazi Type. The attached-rim vessels in Northeast China were distributed only in the Shuiquan Type at the first period(the fifth century B.C.), but in the Zhengjiawazi Type centered in Shenyang at the second period(the fourth century B.C.) as it spread to the triangular area connecting Aohanqi, Kalaqinzuoyi and Ningcheng as well as the Liao River region. At the third stage(the third century B.C.), it became widely distributed mainly in the middle and upper stream regions of Taizi River at Liaoxi and Benxi centered in Chaoyang of Liaoning province and Jilin province, in the middle and upper stream regions from Gou river to Dongliao river, and in the lower and middle stream region of Huifa river). However, at the fourth stage(the first and second centuries B.C.), it was only partially distributed at some sites in the Eastern part of Liaodong and in the South Central of Jilin province, but it finally disappeared.

scholarly journals Visit to Museums of North-East China

2020 ◽  
Vol 19 (4) ◽  
pp. 159-167
Author(s):  
Elena E. Voytishek ◽  
Sergey A. Komissarov ◽  
Aleksandr I. Soloviev
Keyword(s):  
Cultural Heritage ◽  
Inner Mongolia ◽  
Northeast China ◽  
Liaoning Province ◽  
State University ◽  
Historical Materials ◽  
Historical Museums ◽  
North East ◽  
The Status ◽  
Oriental Studies

The review contains information about the performances of employees of the Department of Oriental Studies of the Institute for Humanities of Novosibirsk State University and the Institute of Archeology and Ethnography of the SB RAS at international conferences, during which they also visited several important historical museums in northeast China. The review also touches on the famous Lamaist complexes of Inner Mongolia – Dalelinsi and Wudanzhao, the Hamin Archaeological Park with Neolithic burials, the Museum of Inner Mongolia in Baotou with its ethnographic collections, archaeological and historical materials from the Neolithic and Han eras to the New Age, as well as the Dafu Private Museum in Chaoyang (Liaoning Province), where the main local cultures of the Neolithic and Paleometal era are represented, many of which have been given the status of national Cultural Heritage of various levels.

Ultrasonic Transducers for Measuring Air Flow Near One Bar and High-Temperature Fluid Flows up to 100 Bar

1996 ◽  
Author(s):  
Yi Liu ◽  
Lawrence C. Lynnworth ◽  
Toan H. Nguyen ◽  
Dean Xiao ◽  
Jeffrey Walters
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Air Flow ◽  
Fluid Flows ◽  
Ultrasonic Transducers ◽  
Transducer Design

For ultrasonically measuring the flow of air at ordinary conditions in common pipe sizes, a simple 100-kHz transducer design often suffices, as the generator and detector of the contrapropagating waves. To prevent crosstalk, acoustic isolation is needed. Isolation can be provided by supporting each transducer between soft O-rings. When the gas is hazardous, corrosive, and at high temperature or high pressure, more rugged transducers are required. One such rugged design consists of one buffer rod inside a permanent pressure boundary. The transducer is always outside the pressure boundary and can be removed without recourse to isolation valves and insertion mechanisms.

Radioactive Hailstones in the District of Columbia Area, May 26, 1953

1954 ◽  
Vol 35 (6) ◽  
pp. 245-249 ◽  
Author(s):  
Gilbert Jaffe ◽  
Walter Wittmann ◽  
Charles C. Bates
Keyword(s):  
High Pressure ◽  
Water Content ◽  
Flow Pattern ◽  
Air Flow ◽  
District Of Columbia ◽  
Radioactive Material ◽  
Pressure Ridge ◽  
Tennis Balls

At about 2000Z, 26 May 1953 the District of Columbia area experienced a hailstorm in which individual hailstones ranged up to the size of tennis balls. Determinations of the radioactive count of the water content of these hailstones and of roof gravels indicate that considerable material was brought to earth by the hailstorm from the explosion of the atomic cannon shell 29 hours earlier some 2000 airline miles away in Nevada. The air-flow pattern at upper levels proves to have been around a high-pressure ridge located between the two sites. Such a pattern permitted the arrival of such radioactive material over the District of Columbia area within the time noted.

Revision of the loach species Barbatula nuda (Bleeker 1865) (Pisces: Balitoridae) from North China, with a description of a new species from Inner Mongolia

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 236 ◽  
Author(s):  
LIANG CAO ◽  
ROMAIN CAUSSE ◽  
E ZHANG
Keyword(s):  
New Species ◽  
Inner Mongolia ◽  
Northeast China ◽  
North China ◽  
Jilin Province ◽  
A New Species

Variation in the currently recognized species, Barbatula nuda (Bleeker 1865), from North China was studied, and threedistinct species are identified: B. nuda, B. toni, and B. gibba sp. nov.. The name B. nuda is presently misapplied; this speciesis distinct from B. toni, a species widely distributed in Northeast China, and occurs only in the Liao-He basin of LiaoningProvince and the Tumen-Jiang basin of Jilin Province. The new species, B. gibba, is only found in Dali-Nur Lake in Inner Mongolia. Among Chinese Barbatula species, it is uniquely distinguished by the shape of the predorsal body.

Microstructural Study of Diamond Deformed Under High Pressure and Temperature

1985 ◽  
Vol 43 ◽  
pp. 230-231
Author(s):  
E. F. Koch
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Lattice Structure ◽  
Diamond Particle ◽  
Polycrystalline Diamond ◽  
Sintering Process ◽  
Ion Milling ◽  
Sintered Compact ◽  
Transmission Electron ◽  
High Pressure Sintering

Because of the extremely rigid lattice structure of diamond, generating new dislocations or moving existing dislocations in diamond by applying mechanical stress at ambient temperature is very difficult. Analysis of portions of diamonds deformed under bending stress at elevated temperature has shown that diamond deforms plastically under suitable conditions and that its primary slip systems are on the ﹛111﹜ planes. Plastic deformation in diamond is more commonly observed during the high temperature - high pressure sintering process used to make diamond compacts. The pressure and temperature conditions in the sintering presses are sufficiently high that many diamond grains in the sintered compact show deformed microtructures.In this report commercially available polycrystalline diamond discs for rock cutting applications were analyzed to study the deformation substructures in the diamond grains using transmission electron microscopy. An individual diamond particle can be plastically deformed in a high pressure apparatus at high temperature, but it is nearly impossible to prepare such a particle for TEM observation, since any medium in which the diamond is mounted wears away faster than the diamond during ion milling and the diamond is lost.

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