2024 Report on the Development of China’s Import Released

The Ch ina Chamber of Commerce to the E.U.(CCCEU),in partnership with global consultancy Roland Berger,has published its annual flagship report on the state of Chinese enterprises in the E.U.recently in Brussels.The findings paint a sobering picture of strained ties and growing unease among Chinese businesses operating in the bloc.

Talent Retention Index Released

BEIJING Institute of Talent Development Strategy and Peking University’s Guanghua School of Management have released the 2024 edition of the Global City Talent Retention Index in cooperation with Nature Research Intelligence.

Preliminary Discussion on Research Progress and Prospect of Slow Released Fertilizers

Slow/controlled release fertilizers （SRFs/CRFs） have been paid more at- tentions by the researchersin recent years. In this paper, the application effects and methods, types, current problem and development prospect of SRFs/CRFsboth at home and abroad were reviewed. The production principles and processes of urea- formaldehyde slow release fertilizers were introduced; and It is suggested that the urea-formaldehyde slow release fertilizers show great development to ease energy and environment pressure.

Assessment of rockburst hazard by quantifying the consequence with plastic strain work and released energy in numerical models

Quantifying the rockburst consequence is of critical importance to reduce the hazards with preventative measures in underground mines and deep tunnels. Contours of energy components within a pillar model are plotted at different rockmass damage stages, and plastic strain work and released energy are proposed as indicators of rockmass damage consequence. One pillar model under different loading stiffness is simulated to assess indicators of pillar burst and the resulting damages. The results show the rockmass damage under soft loading stiffness has larger magnitude of plastic strain work and released energy than that which is under stiff loading stiffness, indicating the rockburst consequence can be quantified with plastic strain work and released energy in numerical models. With the quantified rockburst consequence,preventative measures can be taken to avoid severe hazards to mine safety.

Assessment of released acrosin activity as a measurement of the sperm acrosome reaction

Aim： To develop a method for assessing sperm function by measuring released acrosin activity during the acrosome reaction （AR）. Methods： Human semen samples were obtained from 24 healthy donors with proven fertility after 3-7 days of sexual abstinence. After collection, samples were liquefied for 30 min at room temperature. Standard semen parameters were evaluated according to World Health Organization （WHO） criteria. Calcium ionophore A23187 and progesterone （P4） were used to stimulate the sperm to undergo AR. After treatment, sperm were incubated with the supravital dye Hoechst33258, fixed in a glutaraldehyde-phosphate-buffered saline solution, and the acrosomal status was determined by fluorescence microscopy with fluorescein isothiocyanate-labeled Pisum sativum agglutinin （FITC-PSA）. The percentage of sperm undergoing AR （AR%） was compared to sperm acrosin activities as assessed by spectrocolorimetry. The correlation between AR% and acrosin activity was determined by statistical analysis. Results： The AR% and released acrosin activity were both markedly increased with A23187 and P4 stimulation. Sperm motility and viability were significantly higher after stimulation with P4 versus stimulation with A23187 （P 〈 0.001）. There was a significant positive correlation between released acrosin activity and AR% determined by FITC-PSA staining （r= 0.916, P 〈 0.001）. Conclusion： Spectrocolorimetric measurement of released acrosin activity might serve as a reasonable alternative method to evaluate AR. （Asian J Androl 2008 Mar, 10： 236-242）

Synthesis of (R)(E)-3,7-Dimethyl-2-octene-1,8-dioic Acid, a Copulation Released Pheromone Component of Azuki Bean Weevil

Started from 5-hydroxy-2-pentanone, (R)(E)-3,7-dimethyl-2-octene-1,8-dioic acid, callosobruchusic acid, was synthesized via five steps with D-(-)-camphor sultam as the chiral auxiliary. It was of good optical purity and yield.

China Expands the Import Market to Share Opportunities with the Word——2019 Report on the Development of China’s Imports Was Released Officially

The second China International Import Expo was held in Shanghai on November5th,2019.Chinese President Xi Jinping delivered a keynote speech at the opening ceremony of the China International Import Expo for two consecutive years,which fully demonstrates the great importance the Chinese government attaches to the expo.

Treatment of Wastewater Containing Heavy Metals Using Dissolved Air Released Flotation Column

A new type of dissolved air released flotation column is developed to treat wastewater containing Cr（Ⅵ） based on advantages of both dissolved air floatation and column floatation. By using a column with a diameter of 50 mm and a specially made dissolved air releaser, micro-bubbles inside the column can be formed. N2H4H2O was used as reductant, AlCl3 as flocculant, C12H25SO3Na（SDS） as surfactant in the experiment. The effects of pH of wastewater, pressure of dissolved air, ratio of return water, and concentration of flocculant and surfactant on the removal efficiency are studied. The results show that the efficiency of dissolved air released flotation column is much higher than that of other approaches after the operation parameters are optimized, with the reduction ratio of Cr（Ⅵ ） in wastewater reaching 98%. So this technique can be widely used in wastewater treatment

Green Supply Chain Evaluation System Released

Agreen supply chain evaluation system was released recently to measure a brand’s perfor-mance in managing the environmental impacts of their supply chains in China.The evaluation system,namely the Corporate Information Transparency Index(CITI),was released by the Institute of Public and Environmental Affairs(IPE)and the Natural Resources Defense Council(NRDC)at the 2014 Eco-Forum Global Conference in Guiyang,capital of Guizhou Province in July.

Five National Standards on Electric Vehicles Released

Five Chinese national standards on electrically propelled road vehicles,leaded and drafted by CRRC Times Electric Vehicle Co.,Ltd.,were offi cially released recently.The standards include 3 parts of GB/T 18384 on the safety specifi cations for electrically propelled road vehicles,that is GB/T 18384.1-2015,GB/T 18384.2-2015and GB/T 18384.3-2015,and 2 parts of GB/T 18488 on drive motor system for electric vehicles,including GB/T 18488.1-2015 and GB/T 18488.2-2015.

China Licensed Merchandise Growing Rapidly——China Licensing Industry Report Released

As the fifth largest licensing market in the world,China’s Licensing market has great potential to grow.The market is so big that it is always difficult to see into the details.To understand the rapidly growing licensing industry in China,China Toy and Juvenile Products Association(CTJPA)conducted a professional survey and issued the China Licensing Industry Report2018earlier this year.

First GB Standard on Protective Mask Released

The Chinese first national standard,GB/T 32610-2016,Technical specification of daily protective mask,was released offi cially on April 25,2016 and will be implemented from November 1,2016.This is the first GB standard on protective mask for civil use in China,which includes two key indicators of wear safety and PM 2.5 protective performance.The PM 2.5 protective performance can be classified into four grades of A,B,C and D according to the air quality.Grade A is applicable when the concen-

Effect of Delay Released Welan Gum on the Performance of Cement Mortar

Welan gum is widely applied in environmental admixtures due to its good thickening and rheological properties. With its powerful charge density in the molecular structure, the competitive adsorption between welan gum and other admixtures happened remarkably during the addition process. So controlling the releasing rate of welan gum will be able to improve the competitive adsorption, while having no disadvantages to its thickening and workability at the same time. The investigation of influences of the delay released welan gum（DRWG） on the fluidity and strength of cement mortar, bleeding rate and rheological properties of cement paste, adsorption amount and zeta potential of clinker single mineralogical phases, shows that there will be a better mortar workability and certain improvement in mortar strength with DRWG. For mortar with DRWG, the standing bleeding rate is 0, and there is less thixotropic, less adsorption, and a lower zeta potential value on the surface of clinker mineralogical phases.

Eliminating Targets of Outdated Capacity for 19 Industries Released

Ministry of Industry and Information Technology of China released targets of eliminating outdated capacity for 19 industries recently.

DVD With High Gapacity Released

After two years of research and development, the Center for International Cultural Exchange under the Ministry of Culture of China has recently released a new type of DVD which is double-faced, double-system and bears ten languages. Teststatistics show that all its indicators come up withthose of its foreign counterparts. Now it has beenput into mass production.This new type of DVD features the following performances. It is a high-clarity one, with the horizontal clarity more than 500. It has a superb sound effect, capable of recording various stereo signals such as DOLBY DIGITAL and DTS. It can record dubbing in eight languages and

China's First Luxury Brands Released

China now has its own luxury brands. The four brands Feitian (Moutai spirit), Yong-Qi Zitan (furniture), Rongbaozhai (works of art) and Dongding Oolong (tea) were released as the first Chinese luxury brands by the China Luxury Institute on Nov. 11.

China released 2017 first batch of rare earth mining quotas

China's Ministry of Land and Resources released the first batch of rare earth mining quotas in 2017, according to an announcement on the ministry's website. The total mining amount for the first batch is 52,500 tonnes, equal to the number in 2016. Out of the 52,500 tonnes, there are 43,550 tonnes for light rare earths and 8,950 tonnes for medium and heavy rare earths.

2018/19 A/W Fabrics China Trend released in Ningbo

Giving a professional boost to the IFFAIR During the 21st Ningbo International Fashion Fair（hereinafter referred to as＂IFFAIR＂）from October 19th to 22nd,2018/19 A/W Fabrics China Trend Show was staged as one of the important sections,showcasing the professional and instructive identity of the fair and booting the overall optimization and upgrading of the fair.

Latest Spectra Catalog Released by LAMOST-Kepler Project

An international team led by Prof. Fu Jianning from Beijing Normal University and Dr. ZONG Weikai, the LAMOST youth researcher, together with researchers from Belgium,USA, Poland and Italy, released the spectra catalog,conducted in the survey period from 2012 to 2017。

New Integrative Stratigraphy and Timescale for China Released

New integrative stratigraphy and timescales for 13 geological periods in China from the Ediacaran to the Quaternary have recently been published in a special issue of SCIENCE CHINA Earth Sciences.The research summarizes the latest advances in stratigraphy and timescale as well as discusses the correlation among different blocks in China and with international timescales.