Controlling floor heave of extraction opening by reinforcing sides and roof

The effect of reinforcing roof, sides and floor corners to control floor heave of extraction opening was analyzed, It was proved by engineering practice and numerical simulation that reinforcing any part of surrounding rock have certainly control effect for floor heave, in the basis of this, the new way that roof, sides and floor corners were rein-forced to control floor heave was put forward. Contrasting control result of reinforcing floor with this, it is determined that reinforcing is more suitable to control floor heave of extrac-tion opening than reinforcing floor when advancing abutment pressure is in some range.

Investigation of Pitch Motion Portion in Vertical Response at Sides of a Tension-Leg Platform

Tendons vertically moor Tension-Leg Platforms （TLPs）, thus, a deep understanding of physical tendon stresses requires the determination of the total axial deformation of the tendons, which is a combination of the heave, pitch, and surging responses. The vertical motion of the lateral sides of the TLP is coupled with surge and constitutes a portion of the pitch motion. Tendons are connected to the sides of the TLP; hence, the total displacement of the lateral sides is related to the total deformation of the tendons and the total axial stress. Therefore, investigating the total vertical response at the sides of the TLP is essential. The coupling between various degrees of freedom is not considered in the Response Amplitude Operator （RAO）. Therefore, in frequency domain analysis, the estimated vertical RAO is incomplete. Also, in the time domain, only the heave motion at the center of TLP is typically studied; this problem needs to be addressed. In this paper, we investigate the portion of the pitch motion in the vertical response at the sides of the TLP in both the frequency and time domains. Numerical results demonstrate a significant effect of the pitch motion in the vertical motion of the edges of the TLP in some period ranges.

Two sides of the same coin: tyrosine kinase inhibitionin cancer and neurodegeneration

Cancer and neurodegeneration include a group of diseases that are mechanistically distinct but may share common therapeutic targets.Autophagy is a common quality control mechanism shared by mitotic and post-mitotic cells and it can be exploited to accelerate clearance of unwanted oncogenes and reduce accumulation of toxic proteins in cancer and neurodegeneration,respectively.Tyrosine kinase inhibition is a therapeutically relevant strategy that can induce autophagy, leading to normal cell survival. This article provides insights into how tyrosine kinase inhibition is clinically used to arrest mitotic cell division and tumor growth, and may promote survival of post-mitotic neurons in neurodegeneration.

Class of numerical methods for differential-algebraic systems with discontinuous right-hand sides

Numerical methods for Differential-Algebraic systems with discontinuous right-hand sides is discussed. A class of continuous Rosenbrock methods are constructed, and numerical experiments show that the continuous Rosenbrock methods are effective. Applying the methods, a fast and high-precision numerical algorithm is given to deal with typical discontinuous parts, which occur frequently in differential-algebraic systems(DAS).

Analysis of the sensory threshold between paretic and nonparetic sides for healthy rehabilitation in hemiplegic patients after stroke

The purpose of this study was to investigate the differences in the sensory threshold between the paretic and nonparetic sides of hemiplegic patients. 28 patients who were hemiplegic post-stroke (14 men and 14 women) participated in the electrical sensory and pain thresholds study;22 patients who were hemiplegic post-stroke (13 men, 9 women) participated in a study measureing the sensory threshold with light touch. Electrical sensory and pain thresholds were measured in the forearm via transcutaneous electrical nerve stimulation. The light-touch threshold was measured in the forearm using monofilaments. The light-touch, electrical sensory, and pain thresholds for the paretic side were significantly higher than for the nonparetic side in our population, respectively. In both the nonparetic and paretic sides, the male group generally showed higher thresholds for pain and sensation than did the female group. These results suggest that the different evaluations of sensory thresholds performed in this study for healthy rehabilitation will be a valuable clinical tool in hemiplegic patients after stroke.

Study on mechanism of reinforcing sides to control floor heave of extraction opening

Roadway surrounding rock is a compound structure consisted of roof, floor and sides. The sides of extraction opening is the weak coal mass, which affect immediately the stability of floor. It was simulated by numerical calculation for the strength of sides coal to affect the floor heave, the higher strength of sides coal is, the lower degree of floor heave was. So it was put forward reinforcing sides to control floor heave of extraction opening, and it was proved by engineering practice that the floor heave of deep extraction opening can be controlled to a certain degree by reinforcing sides of roadway.

Azimuthal Asymmetry of Pion-Meson Emission around the Projectile and Target Sides in Au+Au Collision at 1A GeV

The ratio of the number of emitted pions from the target side to that from the projectile side at target rapidity within the reaction plane is investigated for the study of the pion dynamics with an isospin-dependent quantum molecular dynamic model. The results show that high-energy pions are emitted preferentially towards the target side and, therefore, they are freezed out at the early stage of the collision. By contrast, low-energy pions are emitted predominantly in the opposite direction, which means that they are emitted in a later stage. This argument is based on the shadowing effect caused by the interaction of pions with the spectator matter in peripheral collisions at target or projectile rapidities. This phenomenon disappears in the central collision or at midrapidity due to the weaker shadowing effect. The calculated ratios are also compared with the experimental data.

Protection of Intellectual Property for Both Sides of the Straits

At the invitation of Pen-tsao Chang, Chairman of the Commercial Affairs Coordination Committee for the Two Sides of the Straits, a delegation composed of nine intellectual property experts and scholars, headed by Xie Jianqun, Vicechairman of the China Council for the Promotion of International Trade (CCPIT) and Chairman of the Economic and Trade Coordination Committee for the Two Sides of the Straits, recently paid a nineday visit to Taiwan. The visit caught the attention of Taiwan’s mass media as it was the first high-ranking economic

Relation Between Both Sides of the Taiwan StraitsIn Anticipation of the Trends of Its Development

In the issue of January, 2002, the magazine "Relation Between Both Sides of the Taiwan Straits" published by the Association of the Relation Between the Both Sides of the Taiwan Straits, a signed essay was carried out, stating that the development of the relation between the both sides last year, anticipates the trends of such relation in the future.

TWO SIDES OF THE SAME COIN

With trade of over $100 billion in 2009, the importance of China and Africa bilateral exchanges are growing daily. This blooming relationship increases the need of understanding the ways of doing business.This regular column will provide a practical insight of doing business in China, including tips and advice based on experience.

ALGEBRAIC-GEOMETRY FOUNDATION FOR CONSTRUCTING SMOOTH INTERPOLANTS ON CURVED SIDES ELEMENT

The aim of this paper is to lay a algebraic geometry foundation for constructing smoothing interpolants on curved side element. Some interpolation theorems in polynomial space are given. The main results effectively for CAGD are presented.

Exploring Shaking for Cancer Treatment

1.Double-sided role of vibration and shaking Removing vibration and shaking is a pivotal engineering task,which is showcased,for instance,in spacecraft attitude control systems that ensure a precise three-dimensional orientation.Vibration or shaking,such as precession caused by external torque,nutation stemming from off-axis angular momentum,and wobbling due to geometric misalignment,necessitate active and passive damping mechanisms.This principle extends beyond spacecraft to centrifugation techniques,pivotal not only in washing machines but also in a spectrum of biomedical apparatuses used for isolating cells and organelles and separating DNA and proteins.

Review and update on the management of triangular fibrocartilage complex injuries in professional athletes

Triangular fibrocartilage complex injuries are common in amateur and professional sports.These injuries are mainly caused by acute or chronic repetitive axial loads on the wrist,particularly on the ulnar side and in association with rotations or radial/ulnar deviations.In order to treat professional athletes,a detailed specific knowledge of the pathology is needed.Moreover,the clinician should fully understand the specific and unique environment and needs of the athletes,their priorities and goals,the type of sport,the time of the season,and the position played.An early diagnosis and appropriate management with the quickest possible recovery time are the uppermost goals for both the athlete and the surgeon.A compromise between conservative vs surgical indications,athletes’needs and expectations,and financial implications should be achieved.Arthroscopic procedures should be timely planned when indicated as they could allow early diagnosis and treatment at the same time.Conservative measures are often used as first line treatment when possible.Peripheral lesions are treated by arthroscopic repair,whilst central lesions are treated by arthroscopic debridement.Further procedures(such as the Wafer procedure,ulnar osteotomies,etc.)have specific indications and great implications with regard to rehabilitation.

SAC/SWG 38 on general agricultural standards set up

The founding ceremony and the first plenary meeting of SAC/SWG 38, Basic and general standards in agriculture, were held on October 29 in Beijing. Xu Changxing, First-class Inspector of the Standards Technical Management Department of SAMR, Xu Minggang, Academician of the Chinese Academy of Engineering and Chair of SAC/SWG 38, and 59 members of SAC/SWG 38 attended the meeting. Li Zhiping, Vice President of China National Institute of Standardization(CNIS), which holds the secretariat of the working group, presided over the meeting.

National technical committee on rock and soil mechanics set up in Liaoning

The founding ceremony and the first plenary meeting of SAC/TC 605,Rock and soil mechanics,was held on February 26 at the Northeastern University (NEU) in Liaoning province.The meeting was presided over by Feng Xiating, President of Northeastern University and Academician of Chinese Academy of Engineering (CAE), and addressed by Gao Tao.

Bolstering Ties China-Cambodia Dialogue on Cultural and Economic Exchanges in Phnom Penh

On the afternoon of September7,the ChinaCambodia Dialogue on Cultural and Economic Exchanges,themed"building a China-Cambodia community with a shared future in the new era,"took place in Phnom Penh,capital of Cambodia.Du Zhanyuan,president of China International Communications Group (CICG),and Kha Leng,Secretary of State of the Ministry of Commerce of Cambodia,delivered speeches at the conference.Neth Pheaktra,Minister of Information of Cambodia,delivered an address via video.Chen Cong,Minister Counselor of the Embassy of China in Cambodia,and Chhean Leang,Secretary of State of the Ministry of Information of Cambodia,also attended.Chen Wenge,president of the CICG Center for Asia-Pacific,presided over the opening ceremony.

BRIEFING

CCPIT BRICS Women’s Leadership Forum Was Held On June 11,the 2024 BRICS Women’s Leadership Forum was held in Beijing.Ren Hongbin,Chairman of the China Council for the Promotion of International Trade(CCPIT)and the China Chamber of International Commerce(CCOIC),Huang Xiaowei,Vice-President and First Member of the Secretariat of the All-China Women’s Federation(ACWF),and Vice-Chairperson of the National Working Committee on Children and Women under the State Council,Siyabonga Cyprian Cwele,Ambassador of South Africa to China,Assem Hanafi,Ambassador of Egypt to China,Zhao Haiying,Chairperson of the Chinese Chapter of the BRICS Women’s Business Alliance(WBA),and Anna Nesterova,Rotating Chairperson of the BRICS WBA in 2024,attended the opening ceremony and delivered speeches.Yu Jianlong,Vice Chairman of the CCPIT and the CCOIC,presided over the opening ceremony.

标准对话:国外标准化组织2024年工作规划

To bolster mutual understanding,better understand major tasks of overseas standards organizations and facilitate in-depth cooperation in standardization field,China Standardization Press organized a high-end dialogue on standards in March.Presided over by Ms.Yu Xinli,President of China Association for Standardization,Dr.Yuan Yu,Ms.Hu Yanan,Dr.Betty Xu and Mr.Xu Fang,as representatives of IEEE SA,ASTM International,SESEC and ANSI respectively,were invited to brief on the current development trend of standardization,the work plan and priorities of each organization in 2024,and their suggestions for China’s standardization work.

标准引领 推动高质量发展——第二届中国标准化大会在浙江衢州召开

The Second China Standardization Conference was held in Quzhou city,Zhejiang province,on May 22-23,2024,which was hosted by China Association for Standardization(CAS).The conference was presided over by Zhang Xiuchun,Secretary General of CAS,and addressed by Xu Zhangyan,Mayor of Quzhou,and Li Yaowu,Deputy Secretary-General of Zhejiang Provincial People’s Government,and Yu Xinli,President of CAS.The conference was attended by more than 1,300 participants on site including renowned experts and scholars on standardization,leaders of research institutes,heads of standards technical management,and representatives of enterprises at home and abroad,and watched by over 20,000 audiences on line.