News on China's scientific and technological development.
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I got a dumb question.
In fact, it is so dumb, it took me over 2 hours to realize that, and have to ask it. LOL.
Anyways, not sure if anyone knows the answer. I did not read the paper, as I think I won't understand it.
255 that number.
Everything in computers, the count starts at zero. The loop starts at zero.
So, from 0 to 255, if we count using our fingers and toes, and of our extended family and friends, we counted up to 256.
There was 32-bit then 64-bit, 128-bit, we see where we are going with this.
2^8 is like 256 right? But the qbit is like 4 I believe. That would mean 16*16.
So that is the dumb question.
That 255 qbits recorded, was that just a random number recorded? It just happened to be 16*16, number of qbits.
Or did they rig their machine and measuring devices to ensure that exact number or qubits are measured?
Personal speaking, as someone who know nothing about this stuff, no way, this 255 qubits recorded was a fluke.
Then, we have to ask that dumb question, to make sure it was fluky number that it landed on. Because if they rigged it to make it measure exactly 255 qbits, then look out!
Either way, they trolling and rolling, and they hating.
China has announced plans to build the world's deep-sea neutrino in the western Pacific Ocean. The project, called "Trident," is expected to be completed in 2030 and will be used to study the universe's most extreme phenomena, such as supernova explosions...
I think it was mentioned on here before, but if they're sensitive enough to pick up neutrinos from small nuclear reactors then they could potentially be used to triangulate nuclear powered vessels. You'd just need to filter out the moving neutrino sources from the static ones which space-based sources and power stations would be.China has announced plans to build the world's deep-sea neutrino in the western Pacific Ocean. The project, called "Trident," is expected to be completed in 2030 and will be used to study the universe's most extreme phenomena, such as supernova explosions...
huawei unveiled further plans for 5GA yesterday
it is also working with UAE company Du to release world's first 5.5G villa. Remember, many of the earliest HW 5.5G adopters are from the middle east.
it is also working with UAE company Du to release world's first 5.5G villa. Remember, many of the earliest HW 5.5G adopters are from the middle east.
On-chip data transmission and channel counts record by Shanghai Jiao Tong University. On-chip optical computing is critical in data centers, quantum communications and photonic accelerator for AI.
A new record of integrated quantum communications and classical optical communications for metropolitan optical networks from Huawei, China Telecom, QuantumCTek and Pengcheng Laboratory. Secure key rate of 2.7 kbps over 100km at 1 Tbps data transmission.
A new record of integrated quantum communications and classical optical communications for metropolitan optical networks from Huawei, China Telecom, QuantumCTek and Pengcheng Laboratory. Secure key rate of 2.7 kbps over 100km at 1 Tbps data transmission.
Sinopec indigenized production of high end liquid rubber specifically for high-freq. copper-clad laminates (HF-CCL). The 5000-ton production line passed acceptance test recently in Maoming, Guangdong.
高频覆铜板是应用于高频电子电路的超低介电损耗电子电路基材，是覆铜板领域最高端的电子电路基体材料。高性能液体橡胶是高频覆铜板主要基材之一的优选材料。由高性能液体橡胶制备的高频覆铜板具有低介电常数、低介电损耗和低吸水性等特性，信号传播速度快，传输过程不失真。
据中国石化相关负责人介绍，由于技术壁垒高，中国高频覆铜板等高端领域用关键基材高度依赖进口，是中国石化行业亟待攻克的技术难题之一。对此，中国石化把液体橡胶作为高端新材料的重点攻关方向之一，奋力打破中国在该领域受制于人的现状。
目前，中国石化已围绕高性能液体橡胶技术成功开发出4个种类、8个高端产品牌号及其生产技术，并将陆续实现规模化生产。该系列高端新材料将广泛应用于手机、电脑、汽车、军工、航天等领域，婴幼儿、食品、化妆品等环保要求较高的柔性印刷，以及高性能TPV和绿色轮胎等领域，将极大满足中国国内市场对高端液体橡胶产品的需求。(完)
中国高性能液体橡胶首次实现国产化
北京10月12日电 据中国石化12日披露的消息，中国石化茂名分公司每年5000吨液体橡胶装置近日成功产出合格产品——高频覆铜板用液体橡胶。该装置采用的是中国石化北京化工研究院自主研发的技术，顺利投产标志着中国高性能液体橡胶首次实现国产化，取得重大突破，将为中国信息产业安全提供关键原材料支撑。高频覆铜板是应用于高频电子电路的超低介电损耗电子电路基材，是覆铜板领域最高端的电子电路基体材料。高性能液体橡胶是高频覆铜板主要基材之一的优选材料。由高性能液体橡胶制备的高频覆铜板具有低介电常数、低介电损耗和低吸水性等特性，信号传播速度快，传输过程不失真。
据中国石化相关负责人介绍，由于技术壁垒高，中国高频覆铜板等高端领域用关键基材高度依赖进口，是中国石化行业亟待攻克的技术难题之一。对此，中国石化把液体橡胶作为高端新材料的重点攻关方向之一，奋力打破中国在该领域受制于人的现状。
目前，中国石化已围绕高性能液体橡胶技术成功开发出4个种类、8个高端产品牌号及其生产技术，并将陆续实现规模化生产。该系列高端新材料将广泛应用于手机、电脑、汽车、军工、航天等领域，婴幼儿、食品、化妆品等环保要求较高的柔性印刷，以及高性能TPV和绿色轮胎等领域，将极大满足中国国内市场对高端液体橡胶产品的需求。(完)
The paper's title says it all...
Paper:
News story:
近日，中国科学院上海微系统与信息技术研究所传感技术国家重点实验室成功制备了一种基于氮空位（NV）量子色心的微型光电一体化集成钻石量子电流传感器。相关研究成果于2023年9月22日以“Millimeter-Scale Temperature Self-Calibrated Diamond-Based Quantum Sensor for High-Precision Current Sensing”为题发表在当期的Advanced Quantum Technologies上。
该研究展示了一种集成式钻石传感器，其核心元件的尺寸为毫米量级，通过标准的微加工工艺实现。与微加工兼容的光学导入与荧光收集结构的光子探测效率高达66%，在0–400 A的测量范围内，最低检测限为 2 mA，并有效利用双自旋共振调制将温度漂移降至1.92 ppm/℃，大大提高了传感器的稳定性和可靠性，解决了从研究到应用一直受到集成度不足的制约问题。这项研究为当前的量子传感技术提供了一个稳健且可扩展的平台，在电动汽车、智能电网等多个关键领域有良好的应用前景。
Paper:
Millimeter-Scale Temperature Self-Calibrated Diamond-Based Quantum Sensor for High-Precision Current Sensing
The negatively charged nitrogen vacancy (NV) color center in diamond is a type of point defect, which is extensively studied as a promising high-sensitivity solid-state magnetic field sensor. However, its transition from research to application is still limited due to the technical challenges of an integrated physical package. Here, an integrated diamond sensor is demonstrated with the essential component on the order of mm3, which is realized by a standard microfabrication process. A microfabrication-compatible light guiding structure is constructed, providing photon detection efficiency of 66% and thus enabling a magnetic field detection sensitivity reaching 203 pT·Hz1/2. Incorporation of the sensor device with a magnetic yoke enables high-precision wide-range direct-current sensing with current isolation. A current measuring range of 0–400 A with a minimum detection limit of 2 mA is achieved. By utilizing dual spin resonance modulation, the temperature drift is suppressed from 219 to 1.92 ppm∙°C−1. This configuration provides new possibilities as a robust and scalable platform for current quantum sensing technologies.News story:
上海微系统所研制出微型高精度集成钻石量子电流传感器
电动汽车、智能电网、高速列车等众多新兴工业应用的快速发展对高精度的电流传感器有了更高的要求。与传统电流传感器相比，基于量子效应的传感装置可以利用量子态操控技术来大幅提高测量的精度。这些明显的优势使得基于量子效应的电流传感器在各种应用中具有广泛的应用前景。近日，中国科学院上海微系统与信息技术研究所传感技术国家重点实验室成功制备了一种基于氮空位（NV）量子色心的微型光电一体化集成钻石量子电流传感器。相关研究成果于2023年9月22日以“Millimeter-Scale Temperature Self-Calibrated Diamond-Based Quantum Sensor for High-Precision Current Sensing”为题发表在当期的Advanced Quantum Technologies上。
该研究展示了一种集成式钻石传感器，其核心元件的尺寸为毫米量级，通过标准的微加工工艺实现。与微加工兼容的光学导入与荧光收集结构的光子探测效率高达66%，在0–400 A的测量范围内，最低检测限为 2 mA，并有效利用双自旋共振调制将温度漂移降至1.92 ppm/℃，大大提高了传感器的稳定性和可靠性，解决了从研究到应用一直受到集成度不足的制约问题。这项研究为当前的量子传感技术提供了一个稳健且可扩展的平台，在电动汽车、智能电网等多个关键领域有良好的应用前景。
Another regarding precision robotic assembly system.
Paper:
News release:
近日，中国科学院福建物质结构研究所杨永泰课题组，在前期航空结构自动化制孔相关研究基础上，发展了一种机器人装配系统定位精度增强技术。对机器人装配系统与航空结构相对定位误差的形成进行了分析和建模，引入测量装置实现相对定位误差测量和补偿，从容差管理的角度对测量装置不同配置方式下的相对定位误差进行了理论比较，推荐了视觉系统手眼配置方式。基于定位误差雅克比，探索了手眼偏置对定位精度的影响，指导了末端执行器设计和视觉坐标系设置。提出了在机手眼标定和系统定位方法，消除了机器人绝对定位误差相异的影响。进而开发了多功能机器人装配系统的集成控制系统。该研究为航空结构机器人制孔和连接系统的定位精度增强提供了理论依据。
Paper:
Positioning accuracy enhancement of a robotic assembly system for thin-walled aerostructure assembly
Abstract
Aircraft assembly demands efficient and accurate drilling and fastening of a large number of complex thin-walled aircraft parts. In this paper, a robotic assembly system is developed. The machine design and component functions of the robotic system are first discussed. Subsequently, the formation of the relative positioning error between the end-effector and an aircraft part is analyzed and modeled. Measuring instruments are used for relative error measurement to compensate for drilling positions. To achieve high positioning accuracy, we theoretically compare relative positioning errors across instrument configurations from a tolerance management perspective to recommend a good hand-eye configuration. Besides, the impact of hand-eye offset on positioning accuracy is explored based on positioning error Jacobian to guide the end-effector design and the setting of the vision coordinate system. After that, the on-machine hand-eye calibration and system positioning methods are proposed and modeled, eliminating the effect of the dissimilarity of the robot's absolute positioning error. For positioning and processing, the control system of the multifunctional robotic assembly system is built. Finally, experiments for accurate positioning are conducted on the robotic assembly system developed to assemble an aircraft. With the recommended hand-eye configuration, the minimized hand-eye offset, and the on-machine hand-eye calibration, the maximal positioning error is 0.08 mm, which can adequately meet the accuracy standard of the aircraft assembly.News release:
福建物构所在航空薄壁结构机器人装配系统精准定位研究中取得新进展
装配是航空制造过程的重要环节，约占其总劳动量的40%-50%，很大程度上决定了飞机的最终产品质量、制造成本和供货周期。基于铆钉和螺栓等紧固件的机械连接是飞机装配的主要连接方式，一架大型飞机上的紧固件安装孔可达数百万个。考虑高效率和高柔性，研究人员开发了机器人装配系统，用于航空薄壁结构制孔和连接。机器人装配系统和待加工航空结构的名义模型是加工程序产生的基础，然而在装配现场两者的实际状态均偏离其名义模型，导致两者之间相对定位误差的产生，造成了较大的紧固件安装孔位置误差，降低了航空结构的疲劳寿命。近日，中国科学院福建物质结构研究所杨永泰课题组，在前期航空结构自动化制孔相关研究基础上，发展了一种机器人装配系统定位精度增强技术。对机器人装配系统与航空结构相对定位误差的形成进行了分析和建模，引入测量装置实现相对定位误差测量和补偿，从容差管理的角度对测量装置不同配置方式下的相对定位误差进行了理论比较，推荐了视觉系统手眼配置方式。基于定位误差雅克比，探索了手眼偏置对定位精度的影响，指导了末端执行器设计和视觉坐标系设置。提出了在机手眼标定和系统定位方法，消除了机器人绝对定位误差相异的影响。进而开发了多功能机器人装配系统的集成控制系统。该研究为航空结构机器人制孔和连接系统的定位精度增强提供了理论依据。
A micro chip for rapid detection of multiple types of respiratory virus.
Paper:
News release:
中国科学院深圳先进技术研究院生物医学与健康工程研究所杨慧研究员团队，与深圳市儿童医院麻晓鹏、谢中建团队合作，在Biosensors and Bioelectronics上发表了题为CRISPR/Cas12a-Assisted isothermal amplification for rapid and specific diagnosis of respiratory virus on an microfluidic platform的文章。该研究开发了一种基于CRISPR/Cas12a和等温扩增技术（LOC-CRISPR）的简单、全封闭、高度集成的微流控系统，可以特异性识别多种常见呼吸道病毒及其变种。本研究中，沈杰男博士、陈挚博士和谢瑞彬为共同第一作者，麻晓鹏院长、杨慧研究员和谢中建教授为共同通讯作者，深圳市儿童医院与中国科学院深圳先进技术研究院为通讯单位。
呼吸道病毒是导致呼吸道感染的主要因素之一，包括冠状病毒、流感病毒和呼吸道合胞病毒（RSV）等。在儿童和老年人等高风险人群中，病毒感染导致的死亡率极高。传统的诊断方法通常需要复杂的实验设备和较长的检测周期，且存在着高成本、低灵敏度等问题。并且传统的PCR技术只能确定病毒类型，如果要检测同一病毒的不同变异株，就需要进行昂贵且耗时的基因测序。为了解决上述问题，研究人员开发了一种名为LOC-CRISPR的新技术，它基于CRISPR/Cas12a和等温扩增技术，是一种简单、全封闭、高度集成的微流控系统。该系统可以对SARS-CoV-2（新冠）及其变异株（BA.1、BA.2和BA.5）、H1N1（甲型流感病毒）、H3N2（甲型流感病毒）、IVB（流感病毒）和HRSV（呼吸道感染病毒）的进行精准识别。在临床样本测试中，研究团队使用LOC-CRISPR芯片分析了50份鼻咽拭子样本（44份阳性和6份阴性），并获得了优异的灵敏度（97.8％）和特异性（100％）。
该系统中，研究人员在LOC-CRISPR芯片中集成了核酸提取、核酸扩增和荧光检测三个功能区。并且LOC-CRISPR芯片还设计了用于多重检测（两个样本输入和十个结果输出）需求的特殊结构。该系统中的另一项关键技术是CRISPR/Cas12a技术，它是一种基于RNA导向的基因编辑技术，能够通过特异性识别和切割DNA序列，具有高度特异性和高效率的特点。研究团队利用CRISPR/Cas12a的导向作用，将其与等温扩增技术相结合，减少检测步骤，降低检测时间，不仅实现了呼吸道病毒的种类识别，而且还实现了对新型冠状病毒的不同变异株之间的碱基序列识别。
总之，该项研究的进展，具有将实验室科学带入社区诊所的能力，是诊断技术领域的一个重大突破。未来，随着针对多种疾病诊断试剂的持续开发，该款微流控芯片将在疾病预防、健康监测以及个性化医疗方面，具有巨大的潜力和应用价值，值得各方关注和期待。
Paper:
CRISPR/Cas12a-Assisted isothermal amplification for rapid and specific diagnosis of respiratory virus on an microfluidic platform
Abstract
have long been a major cause of a global pandemic, emphasizing the urgent need for high-sensitivity diagnostic tools. Typical PCR technology can only determine the type of virus in the sample, which is unable to detect different variants of the same virus without costly and time-consuming gene sequencing. Here, we introduce a simple, fully enclosed, and highly integrated system based on CRISPR/Cas12a and amplification techniques (LOC-CRISPR) that can specifically identify multiple common respiratory viruses and their variants. The LOC-CRISPR chip integrates viral extraction, recombinant amplification, and CRISPR/Cas12a cleavage reaction-based detection, contamination-free detection. In addition, the LOC-CRISPR chip was designed for multiplexed detection (two-sample input and ten-result outputs), which can not only detect the presence of SARS-CoV-2, H1N1, H3N2, IVB and but also differentiate the BA.1, BA.2, and BA.5 variants of SARS-COV-2. For clinical validation, the LOC-CRISPR chip was used to analyze 50 nasopharyngeal swab samples (44 positive and 6 negative) and achieved excellent sensitivity (97.8%) and specificity (100%). This innovative LOC-CRISPR system has the ability to quickly, sensitively, and accurately detect multiple target sequences with single-base mutations, which will further improve the rapid identification and traceability of respiratory viruses infectious diseases.News release:
中国科学院深圳先进技术研究院生物医学与健康工程研究所杨慧研究员团队，与深圳市儿童医院麻晓鹏、谢中建团队合作，在Biosensors and Bioelectronics上发表了题为CRISPR/Cas12a-Assisted isothermal amplification for rapid and specific diagnosis of respiratory virus on an microfluidic platform的文章。该研究开发了一种基于CRISPR/Cas12a和等温扩增技术（LOC-CRISPR）的简单、全封闭、高度集成的微流控系统，可以特异性识别多种常见呼吸道病毒及其变种。本研究中，沈杰男博士、陈挚博士和谢瑞彬为共同第一作者，麻晓鹏院长、杨慧研究员和谢中建教授为共同通讯作者，深圳市儿童医院与中国科学院深圳先进技术研究院为通讯单位。
呼吸道病毒是导致呼吸道感染的主要因素之一，包括冠状病毒、流感病毒和呼吸道合胞病毒（RSV）等。在儿童和老年人等高风险人群中，病毒感染导致的死亡率极高。传统的诊断方法通常需要复杂的实验设备和较长的检测周期，且存在着高成本、低灵敏度等问题。并且传统的PCR技术只能确定病毒类型，如果要检测同一病毒的不同变异株，就需要进行昂贵且耗时的基因测序。为了解决上述问题，研究人员开发了一种名为LOC-CRISPR的新技术，它基于CRISPR/Cas12a和等温扩增技术，是一种简单、全封闭、高度集成的微流控系统。该系统可以对SARS-CoV-2（新冠）及其变异株（BA.1、BA.2和BA.5）、H1N1（甲型流感病毒）、H3N2（甲型流感病毒）、IVB（流感病毒）和HRSV（呼吸道感染病毒）的进行精准识别。在临床样本测试中，研究团队使用LOC-CRISPR芯片分析了50份鼻咽拭子样本（44份阳性和6份阴性），并获得了优异的灵敏度（97.8％）和特异性（100％）。
该系统中，研究人员在LOC-CRISPR芯片中集成了核酸提取、核酸扩增和荧光检测三个功能区。并且LOC-CRISPR芯片还设计了用于多重检测（两个样本输入和十个结果输出）需求的特殊结构。该系统中的另一项关键技术是CRISPR/Cas12a技术，它是一种基于RNA导向的基因编辑技术，能够通过特异性识别和切割DNA序列，具有高度特异性和高效率的特点。研究团队利用CRISPR/Cas12a的导向作用，将其与等温扩增技术相结合，减少检测步骤，降低检测时间，不仅实现了呼吸道病毒的种类识别，而且还实现了对新型冠状病毒的不同变异株之间的碱基序列识别。
总之，该项研究的进展，具有将实验室科学带入社区诊所的能力，是诊断技术领域的一个重大突破。未来，随着针对多种疾病诊断试剂的持续开发，该款微流控芯片将在疾病预防、健康监测以及个性化医疗方面，具有巨大的潜力和应用价值，值得各方关注和期待。