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| 1 | Cavitation characteristics of pit structure in ultrasonic field显示文摘Bubble collecting, bubble holding and micro-bubble ejecting characteristics of pit structure and the influence of cavitation bubble on the development of erosion pit are investigated by means of highspeed photography experiments. Pits tend to collect and hold wandering cavitation bubbles. The air holding phenomenon of pits can be a destination of the incubation period in the process of cavitation erosion. The holding bubble tends to eject micro-bubbles from the top of holding cavitation bubble, making the pit a source of nuclei. With bubbles being held in pits, the diameters of pits increase rapidly. But in the given experiment condition, there is a specific stable value beyond which the diameter of pits will not increase. This characteristic will be helpful in understanding and predicting the cavitation erosion process. | BAI LiXin XU WeiLin ZHANG FaXing LI NaiWen ZHANG YiChi HUANG DeFa | 2009 | Science China(Technological Sciences)2009，52，7： | 11 |
| 2 | The effects of dietary fiber level on nutrient digestibility in growing pigs显示文摘The objective of this study was to investigate the effects of total dietary fiber level on nutrient digestibility and the relationship between apparent total tract digestibility of total dietary fiber, and soluble dietary fiber, insoluble dietary fiber and available energy. Sugar beet pulp was as the only fiber source. The experiment was designed as a 6×6 Latin square with an adaptation period of 7 d followed by a 5-d total collection of feces and urine. Feed intake tended to decrease(P=0.10) as total dietary fiber level increased. The apparent total tract digestibility of dry matter, crude protein and gross energy decreased(P<0.01) when total dietary fiber increased but the digestibility of soluble dietary fiber and insoluble dietary fiber increased(P<0.01). The digestible energy and metabolizable energy content of diets decreased(P<0.01) as the total dietary fiber increased. | Wenjuan Zhang Defa Li Ling Liu Jianjun Zang Qiwu Duan Wenjun Yang Liying Zhang | 2013 | Journal of Animal Science and Biotechnology2013，4，4： | 9 |
| 3 | Metal nanoparticles induced photocatalysis显示文摘Photocatalysis induced by light absorption of metal nanoparticles(NPs) has emerged as a promising strategy for exploiting efficient visible-light-responsive composites for solar-energy conversion. In this review, we first introduce the light absorption of metal NPs and the mechanisms proposed in metal-induced photocatalysis(MIP). Then, its applications in water splitting, artificial photosynthesis and inert molecular activation are summarized. To address the challenge of low efficiency in this field, strategies in promoting catalytic activity are reviewed, and particular attention is paid to the particle-size effect of metal. Finally, the challenges and possible development directions of MIP are briefly discussed. | Lequan Liu Xinnan Zhang Lufeng Yang Liteng Ren Defa Wang Jinhua Ye | 2017 | National Science Review2017，4，5： | 7 |
| 4 | Methodologies on estimating the energy requirements for maintenance and determining the net energy contents of feed ingredients in swine:a review of recent work显示文摘In the past two decades, a considerable amount of research has focused on the determination of the digestible(DE) and metabolizable energy(ME) contents of feed ingredients fed to swine. Compared with the DE and ME systems, the net energy(NE) system is assumed to be the most accurate estimate of the energy actually available to the animal. However, published data pertaining to the measured NE content of ingredients fed to growing pigs are limited. Therefore, the Feed Data Group at the Ministry of Agricultural Feed Industry Centre(MAFIC) located at China Agricultural University has evaluated the NE content of many ingredients using indirect calorimetry. The present review summarizes the NE research works conducted at MAFIC and compares these results with those from other research groups on methodological aspect. These research projects mainly focus on estimating the energy requirements for maintenance and its impact on the determination, prediction, and validation of the NE content of several ingredients fed to swine. The estimation of maintenance energy is affected by methodology, growth stage,and previous feeding level. The fasting heat production method and the curvilinear regression method were used in MAFIC to estimate the NE requirement for maintenance. The NE contents of different feedstuffs were determined using indirect calorimetry through standard experimental procedure in MAFIC. Previously generated NE equations can also be used to predict NE in situations where calorimeters are not available. Although popular, the caloric efficiency is not a generally accepted method to validate the energy content of individual feedstuffs. In the future,more accurate and dynamic NE prediction equations aiming at specific ingredients should be established, and more practical validation approaches need to be developed. | Zhongchao Li Hu Liu akui Li Zhiqian Lv Ling Liu Changhua Lai Junjun Wang Fenglai Wang Defa Li Shuai Zhang | 2018 | Journal of Animal Science and Biotechnology2018，9，3： | 6 |
| 5 | Metabolic characteristics and nutrient utilization in high-feedefficiency pigs selected using different feed conversion ratio models显示文摘An understanding of the nutrient utilization characteristics of pigs with different feed efficiencies(FEs) will help us to develop new strategies to reduce the costs of pig production.In this study,we selected pigs with a range of FEs according to two feed conversion ratio models: the feed intake(FI) model,where pigs had the same average daily gains(ADGs) but different FIs,and the ADG model,where pigs had the same FIs but different ADGs.High-FE pigs had a higher abundance of short chain fatty acid(SCFA)-producing bacteria(Lachnospiraceae,Clostridiaceae1,and Coriobacteriaceae) in their caecum in the FI model,and low-FE pigs had a higher abundance of two families(BacteroidalesS247group and Peptococcaceae) and two genera(Anaerotruncus and CandidatusSoleaferrea) in both models.By contrast,high-FE pigs had more goblet cells and higher m RNA expression of insulin-like growth factor 1(IGF-1) in the FI model,and higher mRNA expression of occludin but lower expressions of adenosine monophosphate-activated protein kinase(AMPK)-α2 and peroxisome proliferator-activated receptor gamma coactivator 1 alpha(PGC1α) in the ADG model.These findings suggest that the presence of SCFA-producing bacteria in the caecum and increased muscular growth may contribute to the high FE of low-FI pigs,while improved intestinal functions and decreased mitochondrial activity in the skeletal muscle are related to the high FE of high-ADG pigs. | Beibei He Tiantian Li Wei Wang Hang Gao Yu Bai Shuai Zhang Jianjun Zang Defa Li Junjun Wang | 2019 | Science China(Life Sciences)2019，62，7： | 5 |
| 6 | Use of near-infrared reflectance spectroscopy for the rapid determination of the digestible energy and metabolizable energy content of corn fed to growing pigs显示文摘Background: The ability of near-infrared reflectance spectroscopy(NIRS) to determine the digestible energy(DE)and metabolizable energy(ME) content of corn fed to growing pigs was tested. One hundred and seventeen corn samples, comprising different planting regions and varieties were collected from all over China in a three-year period. The samples were randomly split into a calibration set(n = 88) and a validation set(n = 29). The actual and calculated DE and ME content of the corn samples was determined by digestion-metabolism experiments and the prediction equations of Noblet and Perez(J Anim Sci. 71:3389–98,1993). The samples were then subjected to NIRS scanning and calibrations were performed by the modified partial least square(MPLS) regression method based on77 different spectral pre-treatments. The NIRS equations based on the actually determined and calculated DE and ME were built separately and then validated using validation samples.Results: The NIRS equations obtained from actually determined DE, the coefficient of determination for calibration(RSQ_(cal)), cross-validation(R^2_(CV)), and validation(RSQ_v) were 0.89, 0.87 and 0.86, and these values for determined ME were 0.87, 0.86 and 0.86. For the NIRS equations built from calculated DE, the RSQ_(cal), R^2_(CV), and RSQvvalues were 0.88, 0.85 and 0.84, and these values for calculated ME were 0.86, 0.84 and 0.82. Except for the equation based on calculated ME(RPD_v= 2.38, < 2.50), the other three equations built from actually determined energy and calculated DE produced good prediction performance(RPD_vranging from 2.53 to 2.69, > 2.50) when applied to validation samples.Conclusion: These results indicate that NIRS can be used as a quantitative method for the rapid determination of the available energy in corn fed to growing pigs, and the NIRS equations based on the actually determined energy produced better predictive performance than those built from calculated energy values. | Juntao Li Quanfeng Li Defa Li Yiqiang Chen Xiaoxiao Wang Wenjun Yang Liying Zhang | 2017 | Journal of Animal Science and Biotechnology2017，8，1： | 4 |
| 7 | A CRISPR/Cas12a-empowered surface plasmon resonance platform for rapid and specific diagnosis of the Omicron variant of SARS-CoV-2显示文摘The outbreak of the COVID-19 pandemic was partially due to the challenge of identifying asymptomatic and presymptomatic carriers of the virus,and thus highlights a strong motivation for diagnostics with high sensitivity that can be rapidly deployed.On the other hand,several concerning SARS-CoV-2 variants,including Omicron,are required to be identified as soon as the samples are identified as‘positive’.Unfortunately,a traditional PCR test does not allow their specific identification.Herein,for the first time,we have developed MOPCS(Methodologies of Photonic CRISPR Sensing),which combines an optical sensing technology-surface plasmon resonance(SPR)with the‘gene scissors’clustered regularly interspaced short palindromic repeat(CRISPR)technique to achieve both high sensitivity and specificity when it comes to measurement of viral variants.MOPCS is a low-cost,CRISPR/Cas12a-systemempowered SPR gene-detecting platform that can analyze viral RNA,without the need for amplification,within 38 min from sample input to results output,and achieve a limit of detection of 15 fM.MOPCS achieves a highly sensitive analysis of SARS-CoV-2,and mutations appear in variants B.1.617.2(Delta),B.1.1.529(Omicron)and BA.1(a subtype of Omicron).This platform was also used to analyze some recently collected patient samples from a local outbreak in China,identified by the Centers for Disease Control and Prevention.This innovative CRISPR-empowered SPR platform will further contribute to the fast,sensitive and accurate detection of target nucleic acid sequences with single-base mutations. | Zhi Chen Jingfeng Li Tianzhong Li Taojian Fan Changle Meng Chaozhou Li Jianlong Kang Luxiao Chai Yabin Hao Yuxuan Tang Omar AAl-Hartomy Swelm Wageh Abdullah GAl-Sehemi Zhiguang Luo Jiangtian Yu Yonghong Shao Defa Li Shuai Feng William J.Liu Yaqing He Xiaopeng Ma Zhongjian Xie Han Zhang | 2022 | National Science Review2022，9，8： | 3 |
| 8 | The effect of the ratio of standardized ileal digestible lysine to metabolizable energy on growth performance,blood metabolites and hormones of lactating sows显示文摘A total of 335 lactating sows (Landrace × Large White) were used in two experiments to determine the optimum ratio of standardized ileal digestible lysine (SID-Lys) to metabolizable energy (ME) for mixed parity sows during lactation. In Exp. 1, 185 sows (weighing an average of 256.2 ± 6.5 kg and having an average parity of 3.4 ± 0.3) were allocated to one of six experimental diets in a completely randomized block design within parity groups (1, 2, and 3+). The experimental diets were formulated to contain 3.06, 3.16, 3.20, 3.25, 3.30 or 3.40 Mcal/kg of ME and each diet was fed to the sows throughout a 28 day lactation. All diets provided a similar SID-lysine level (0.86%). As a result, the diets provided a SID-Lys:ME ratio of 2.81, 2.72, 2.69, 2.65, 2.61 or 2.53 g/Mcal ME. Sow feed intake was significantly (P < 0.01) affected by the energy content of the diet as well as by sow parity. Using regression analysis, feed intake was shown to be maximized at 3.25, 3.21, 3.21 and 3.21 Mcal/kg of ME for parity 1, 2, 3+ sows and the entire cohort of sows respectively (quadratic; P < 0.01). In addition, the result of feed intake can be expressed as 2.65, 2.69, 2.69 and 2.68 g/Mcal based on analysis of SID-Lys:ME ratio. Litter weight gain was affected by dietary treatment for parity 3+ sows and the entire cohort (P < 0.01). Based on regression analysis, litter weight gain was maximized at 3.25 and 3.24 Mcal/kg of ME for parity 3+ (quadratic; P < 0.01) and the entire cohort (quadratic; P < 0.01). Similarly, the result of litter weight gain could be expressed as 2.65 and 2.66 g/Mcal of SID- Lys:ME ratio. Therefore, 3.25 Mcal/kg of ME was selected for Exp. 2 in which 150 sows (weighing 254.6 ± 7.3 kg and having an average parity of 3.4 ± 0.4) were allocated to one of five treatments in a completely randomized block design within parity (1, 2, and 3+). The experimental diets were formulated to contain 2.1, 2.4, 2.7, 3.0 or 3.3 g/Mcal of SID-Lys:ME ratio with all diets providing 3.25 Mcal/kg of ME. The diets were fed to the sows throughout a 28 day lactation. Sow body weight loss was affected by dietary treatment (parity 3+ sows, P = 0.02; entire cohort, P < 0.01) and by sow parity (P < 0.01). Litter weight at weaning and litter weight gain were affected by dietary treatment for parity 1, 2, 3+ sows and the entire cohort (P < 0.01) as well as by sow parity (P < 0.01). Plasma urea nitrogen (P < 0.01), creatinine (P < 0.01) and non-esterifide fatty acids (P = 0.04) were decreased as the SID-Lys:ME ratio of the diet increased. Insulin-like growth factor-1 (P = 0.02), estradiol (P < 0.01) and luteinizing hormone (P = 0.02) were increased as the SID-Lys:ME ratio in diet increased. Based on a broken-line model, the estimated SID-Lys: ME ratio to maximize litter weight gain was estimated to be 3.05 g/Mcal. | Lingfeng Xue Xiangshu Piao Defa Li Pengfei Li Rongfei Zhang Sung Woo Kim Bing Dong | 2012 | Journal of Animal Science and Biotechnology2012，3，3： | 3 |
| 9 | Preparation Porous Monolithic Column and Its Chromatographic Performance显示文摘结合连续加料降低聚合体系的放热量,及强化体系的换热能力等措施,实现了无搅拌模式聚合体系中温度分布的均一化.通过单次聚合过程构造了体积为38 mL的大体积整体固定相.SEM及孔隙率分布测试证明了整体固定相具有均匀的孔结构,动态容量测定及分离蛋白质的实验,表明所制备的径向流动模式整体柱的容量及分辨率不依赖于流速,同时在高流速下具有低背压的特征,可用于生物大分子的分离制备. | Chen Guoliang Zhang Xiaohui Shang Defa Wang Qingbin Yang Changlong Li Tong | 2006 | 分析化学2006，34，10： | 3 |
| 10 | Lipids and membrane-associated proteins in autophagy显示文摘Autophagy is essential for the maintenance of cellular homeostasis and its dysfunction has been linked to various diseases.Autophagy is a membrane driven process and tightly regulated by membrane-associated proteins.Here,we summarized membrane lipid composition,and membrane-associated proteins relevant to autophagy from a spatiotemporal perspective.In particular,we focused on three important membrane remodeling processes in autophagy,lipid transfer for phagophore elongation,membrane scission for phago-phore closure,and autophagosome-lysosome membrane fusion.We discussed the significance of the discoveries in this field and possible avenues to follow for future studies.Finally,we summarized the membrane-associated biochemical techniques and assays used to study membrane properties,with a discussion of their applications in autophagy. | Linsen Li Mindan Tong Yuhui Fu Fang Chen Shen Zhang Hanmo Chen Xi Ma Defa Li Xiaoxia Liu Qing Zhong | 2021 | Protein & Cell2021，12，7： | 3 |
| 11 | PORK PRODUCTION SYSTEMS IN CHINA:A REVIEW OF THEIR DEVELOPMENT,CHALLENGES AND PROSPECTS IN GREEN PRODUCTION显示文摘This paper reviews the changes in pork production in China,the largest pork producing and consuming nation in the world.The pork sector in China has changed dramatically since the 1990s,with large-scale intensive pork production systems replacing the former,exclusively family-based pork production systems.Modern breeding,feeding,vaccinating,and management technologies are widely used now.However,smallholders still account for a large proportion of the total production.The intensification and specialization of the pork sector is expected to continue in the future,but there is increasing awareness and pressure to develop more environmentally-sustainable production systems.The relative shortage of domestically produced feed,the low utilization efficiency of feed ingredients,the large emissions of nitrogen and phosphorus to the environment,the high use of antibiotics,and the presence of residual metals in manures are very large challenges for the pork sector nowadays.To solve these problems,techniques including new feed resource utilization,precise feeding,low-protein diets,alternatives to antibiotics and increased manure recycling are all important topics and research directions today.With new techniques and management approaches,it is possible to build more sustainable pork production systems in China. | Shuai ZHANG Xin WU Dandan HAN Yong HOU Jianzhuang TAN Sung Woo KIM Defa LI Yulong YIN Junjun WANG | 2021 | Frontiers of Agricultural Science and Engineering2021，8，1： | 2 |
| 12 | Effects of replacing maize with Chinese brown rice on growth performance and apparent fecal digestibility of nutrients in weanling pigs显示文摘 | Li Defa Zhang D F Piao X S | 2002 | Asian-Australian J of Ani Sci2002，15，8： | 1 |
| 13 | Methodological aspects of determining phosphorus digestibility in swine:A review显示文摘The role of phosphorus(P) in swine nutrition has been taken on new significance in recent years.Methods to determine the available phosphorus(AP) content of swine feeds include relative bioavailability(RBV), apparent total tract digestibility(ATTD), standardized total tract digestibility(STTD), and true total tract digestibility(TTTD). The RBV of P is determined by measuring bone ash or bone P, whereas the ATTD of P is determined by calculating the difference between P intake and P excretion in feces.Recent research has shown that the use of ATTD of P underestimates the AP due to the existence of endogenous P in feces and digesta. The STTD can be calculated from ATTD by taking basal endogenous phosphorus losses(EPL) into consideration. The basal EPL in pigs can be measured by feeding a P-free diet. Values for STTD of P are believed to be additive in mixed diets but not for ATTD of P. The regression method is a common approach to determine total EPL and TTTD of P, which measures the linear relationship between fecal P excretion and the dietary intake of total P. In addition, in vitro methods such as the bionic enzymatic method are being increasingly utilized because they can be done quickly and simply. Several dietary factors such as P and Ca concentrations, phytate, Ca to P ratio and vitamin D may affect AP. This review summarizes the evolution of methods to measure AP and factors that can affect AP,which may provide information to formulate swine diet more accurately. Moreover, the knowledge about AP may help to reduce the P waste in swine production and thus decrease its impact on the environment. | Yue She Defa Li Shuai Zhang | 2017 | Animal Nutrition2017，，2： | 1 |
| 14 | In situ carrier tuning in high temperature superconductor Bi2Sr2CaCu2O(8+δ)by potassium deposition显示文摘We report a successful tuning of the hole doping level over a wide range in high temperature superconductor Bi_2Sr_2CaCu_2O_(8+δ)(Bi2212) through successive in situ potassium(K) deposition. By taking high resolution angleresolved photoemission measurements on the Fermi surface and band structure of an overdoped Bi2212(T_c= 76 K) at different stages of K deposition, we found that the area of the hole-like Fermi surface around the Brillouin zone corner(p,p) shrinks with increasing K deposition. This indicates a continuous hole concentration change from initial 0.26 to eventual 0.09 after extensive K deposition, a net doping level change of 0.17 that makes it possible to bring Bi2212 from being originally overdoped, to optimally-doped, and eventually becoming heavily underdoped. The electronic behaviors with K deposition are consistent with those of Bi2212 samples with different hole doping levels. These results demonstrate that K deposition is an effective way of in situ controlling the hole concentration in Bi2212. This work opens a good way of studying the doping evolution of electronic structure and establishing the electronic phase diagram in Bi2212 that can be extended to other cuprate superconductors. | Yuxiao Zhang Cheng Hu Yong Hu Lin Zhao Ying Ding Xuan Sun Aiji Liang Yan Zhang Shaolong He Defa Liu Li Yu Guodong Liu Xiaoli Dong Genda Gu Chuangtian Chen Zuyan Xu Xingjiang Zhou | 2016 | Science Bulletin2016，61，13： | 1 |
| 15 | fMRI revealed neural substrate for reversible working memory dysfunction in subclinical hypothyroidism显示文摘 | Zhu Defa Wang Zhaoxin Zhang D R | 2006 | Brain2006，129，： | 1 |
| 16 | Endogenous chitinase might lead to differences in growth performance and intestinal health of piglets fed different levels of black soldier fly larva meal显示文摘This study aimed to investigate the effects of different levels of black soldier fly(BSF)replacing soybean meal(SBM)in diets on the performance and health condition of piglets.A total of 180 weaned piglets were allocated into 5 treatments:BSF0(corn-soybean meal basal diet),BSF25(BSF replacing 25%SBM),BSF50(BSF replacing 50%SBM),BSF75(BSF replacing 75%SBM)and BSF100(BSF replacing 100%SBM).During the whole period,in comparison with BSF0,average daily gain(ADG)and average daily feed intake increased in the BSF25 and BSF50 groups,whereas ADG decreased in the BSF75 and BSF100groups(P<0.05).The result of quadratic fitting curve showed that piglets exhibited the highest ADG when BSF replaced around 20%SBM.Compared with BSF0,organic matter and dry matter digestibility improved in the BSF25 group,whereas ether extract digestibility decreased in the BSF100 group(P<0.05).In comparison with BSF0,piglets from the BSF25 group showed a higher duodenal ratio of villus height to crypt depth,increased jejunal sucrase activity,serum neuropeptide Y and ghrelin levels,elevated ileal immunoglobulin(Ig)A,Ig G and Ig M contents and a lower leptin level,and piglets from the BSF100 group exhibited an increased relative weight of kidney(P<0.05).However,no significant differences were observed in the expression level of tight junction proteins and chitin-degrading enzyme.Additionally,compared with BSF0,the abundance of short chain fatty acid producing bacteria such as Ruminococcaceae,Faecalibacterium and Butyricicoccus increased,and potential pathogenic bacteria decreased in piglets from the BSF25 group,whereas piglets from the BSF100 group had a greater abundance of harmful bacteria.In conclusion,BSF replacing 25%SBM in diets could improve digestive parameters,immune function and intestinal microbiota,and thus improved growth performance of piglets.However,BSF replacing 100%SBM showed an adverse effect on piglet performance,and the reason might be related to the limited amount of chitin-degrading enzyme. | Sujie Liu Jian Wang Longxian Li Yonggai Duan Xiaolin Zhang Tenghao Wang Jianjun Zang Xiangshu Piao Yongxi Ma Defa Li | 2023 | Animal Nutrition2023，，3： | 0 |
| 17 | Advantages of switching to elvitegravir/cobicistat/emtricitabine/ tenofovir therapy in virologically-suppressed people living with human immunodeficiency virus/acquired immune deficiency syndrome显示文摘To the Editor:With recent advances in antiretroviral therapy(ART)regimens,many patients may benefit from switching drugs.The new combination drug,elvitegravir/cobicistat/emtricitabine/tenofovir(E/C/F/TAF),has been approved for use in people living with human immunodeficiency virus/acquired immune deficiency syndrome(HIV/AID[PLWHA])in China and has also been included within the scope of medical insurance.This single-tablet regimen provides a convenient,once-daily,treatment option for many PLWHA.E/C/F/TAF was shown to increase adherence to ART and decrease the risk of drug resistance and virological failure.[1–4]However,another study showed a higher level of several lipid parameters in patients with tenofovir alafenamide(TAF)-based therapy compared with tenofovir(TDF)-based therapy in treatment-naïve and-experienced adults.[5]In 2019,a phase IV clinical study of E/C/F/TAF was conducted at our Antiviral Treatment Center,allowing us to explore the virological and immunological responses during 12 months of follow-up after switching.We also explored the changes in renal function,liver function,and lipid parameters in PLWHA. | Lina Fan Lei Li Liying Gao Yue Hu Aiping Yu Defa Zhang Chunting Qiu Rong Huang Yue Wu Ping Ma | 2022 | Chinese Medical Journal2022，135，22： | 0 |
| 18 | Preparation of Film Based on Polyvinyl Alcohol Modified by Alkaline Starch and Lignin Fiber显示文摘This study presents an easily prepared film based on alkaline starch-polyvinyl alcohol hybrid and lignin fiber as an additive(SPL film).The SPL film was prepared under acidic conditions through a polycondensation reaction of PVA and a mixture incorporating alkaline starch and lignin fiber from agriculture or forest source.The examination using scanning electron microscopy(SEM)showed that the surface of SPL film was smooth and the lignin fiber had good compatibility within the film hybrid.Electrospray ionization mass spectroscopy(ESI-MS)and fourier transform infrared(FTIR)investigations indicated that alkaline starch and lignin fiber reacted with PVA under acidic conditions and that–CH_(2)–O–groups were involved in the cross-linking of the SPL system.In addition,the SPL film exhibited only 4%light transmittance,which effectively reduces the ultraviolet and visible light(UV-Vis)penetration,along with good performance when exposed to thermal degradation,in which the mass loss reached around 60%at 400℃.More-over,the SPL film acquired excellent tensile strength,which is much higher than that of PVA-lignin(PL)composite film. | Yunxia Zhou Hisham Essawy Ai Liu Chenyu Yang Defa Hou Xiaojian Zhou Guanben Du Jun Zhang | 2023 | Journal of Renewable Materials2023，11，2： | 0 |
| 19 | Effect of the Standardized Ileal Digestible Lysine to Net Energy Ratio onthe Performance of Weaning Pigs Housed Under Commercial Conditions显示文摘Four experiments were conducted to investigate the effects of altering the standardized ileal digestible(SID) lysine to net energy(NE) ratio on the performance of weaned pigs housed under commercial conditions.Exp.1 and 2 utilized a total of 720 crossbred pigs(Landrace×Yorkshire) weighing an average of 8.41±0.72 kg in Exp.1 and 6.94±0.63 kg in Exp.2.The pigs were allotted to one of three treatments with six pens of 20 pigs per treatment.The treatments consisted of diets with different NE levels(2.48,2.42,or 2.36 Mcal/kg) and 1.21% SID-lysine.The diets were formulated using corn,soybean meal,wheat middlings,and broken rice.During both 14 day trials,the ADG of the pigs fed the diet providing 2.48 Mcal/kg NE was the highest among the three treatments(P<0.01).The ADG of pigs fed diets providing 2.42 and 2.36 Mcal/kg NE did not differ(P>0.05).Exp.3 and 4 were conducted to study the effects of different SID-lysine levels on the performance of weaned pigs fed diets containing 2.48 Mcal/kg NE.Exp.3 and 4 utilized 720 crossbred pigs(Landrace×Yorkshire) weighing [JP3]8.48±0.81 kg in Exp.3 and 6.83±0.74 kg in Exp.4.The pigs were allotted to three treatments with six pens of 20 pigs per treatment.The treatments consisted of three diets with different SID-lysine levels(1.31%,1.21%,or 1.11%) and the same NE level(2.48 Mcal/kg).Exp.3 and 4 showed that the ADG of pigs fed the diet with 1.31% SID-lysine was higher than pigs fed the diet with 1.11% SID-lysine(P<0.01).The ADG for pigs fed diets with 1.31% and 1.21% SID-lysine did not differ(P>0.05).Based on the results of the present study,to maximize ADG of weaned pigs,the optimal level of NE is 2.48 Mcal/kg and the optimum level of SID-lysine is 1.31%. | Wenye Zhang Defa Li Xiangshu Piao Zhengpeng Zhu | 2011 | Journal of Animal Science and Biotechnology2011，2，4： | 0 |
| 20 | Light-induced tumor theranostics based on chemical-exfoliated borophene显示文摘Among 2D materials(Xenes)which are at the forefront of research activities,borophene,is an exciting new entry due to its uniquely varied optical,electronic,and chemical properties in many polymorphic forms with widely varying band gaps including the lightest 2D metallic phase.In this paper,we used a simple selective chemical etching to prepare borophene with a strong near IR light-induced photothermal effect.The photothermal efficiency is similar to plasmonic Au nanoparticles,with the added benefit of borophene being degradable due to electron deficiency of boron.We introduce this selective chemical etching process to obtain ultrathin and large borophene nanosheets(thickness of ~4 nm and lateral size up to ~600 nm)from the precursor of AlB_(2).We also report first-time observation of a selective Acid etching behavior showing HCl etching of Al to form a residual B lattice,while HF selectively etches B to yield an Al lattice.We demonstrate that through surface modification with polydopamine(PDA),a biocompatible smart delivery nanoplatform of B@PDA can respond to a tumor environment,exhibiting an enhanced cellular uptake efficiency.We demonstrate that borophene can be more suitable for safe photothermal theranostic of thick tumor using deep penetrating near IR light compared to gold nanoparticles which are not degradable,thus posing longterm toxicity concerns.With about 40 kinds of borides,we hope that our work will open door to more discoveries of this top-down selective etching approach for generating borophene structures with rich unexplored thermal,electronic,and optical properties for many other technological applications. | Zhongjian Xie Yanhong Duo Taojian Fan Yao Zhu Shuai Feng Chuanbo Li Honglian Guo Yanqi Ge Shakeel Ahmed Weichun Huang Huiling Liu Ling Qi Rui Guo Defa Li Paras N.Prasad Han Zhang | 2022 | Light(Science & Applications)2022，11，12： | 0 |
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